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gtk2/gdk/win32/gdkdnd-win32.c

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re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
Add copyright note and comment for merged old code
2009-12-16 11:47:57 +00:00
* Copyright (C) 2001 Archaeopteryx Software Inc.
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
* Copyright (C) 1998-2002 Tor Lillqvist
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*
* This library is free software; you can redistribute it and/or
applied patch from Andreas Persenius <ndap@swipnet.se> that updates the Wed Jul 26 12:59:31 2000 Tim Janik <timj@gtk.org> * *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that updates the license headers to the GNU Lesser General Public License, as well as updating the copyright year to 2000.
2000-07-26 11:33:08 +00:00
* modify it under the terms of the GNU Lesser General Public
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
applied patch from Andreas Persenius <ndap@swipnet.se> that updates the Wed Jul 26 12:59:31 2000 Tim Janik <timj@gtk.org> * *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that updates the license headers to the GNU Lesser General Public License, as well as updating the copyright year to 2000.
2000-07-26 11:33:08 +00:00
* Lesser General Public License for more details.
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*
applied patch from Andreas Persenius <ndap@swipnet.se> that updates the Wed Jul 26 12:59:31 2000 Tim Janik <timj@gtk.org> * *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that updates the license headers to the GNU Lesser General Public License, as well as updating the copyright year to 2000.
2000-07-26 11:33:08 +00:00
* You should have received a copy of the GNU Lesser General Public
Change FSF Address
2012-02-27 13:01:10 +00:00
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*/
/*
applied patch from Andreas Persenius <ndap@swipnet.se> that updates the Wed Jul 26 12:59:31 2000 Tim Janik <timj@gtk.org> * *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that updates the license headers to the GNU Lesser General Public License, as well as updating the copyright year to 2000.
2000-07-26 11:33:08 +00:00
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
re-adding for manual rename of repository files.
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*/
Include "config.h" instead of <config.h> Command used: find -name 2008-06-21 Johan Dahlin <jdahlin@async.com.br> * *.[ch]: Include "config.h" instead of <config.h> Command used: find -name \*.[ch]|xargs perl -p -i -e 's/^#include <config.h>/#include "config.h"/g' Rubberstamped by Mitch and Tim svn path=/trunk/; revision=20669
2008-06-22 14:28:52 +00:00
#include "config.h"
re-adding for manual rename of repository files.
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#include <string.h>
Awful hack for problem in dnd of images from Firefox on Windows Bypassed with #if 0 because it is an awful hack and not really acceptable from a privacy point of view for instance. It prevents Firefox from deleting temporary files containing images being dragged, so they stay on disk. Bug #561973.
2009-11-14 22:32:14 +00:00
#include <io.h>
#include <fcntl.h>
Add copyright note and comment for merged old code
2009-12-16 11:47:57 +00:00
/*
* Support for OLE-2 drag and drop added at Archaeopteryx Software, 2001
* For more information, contact Stephan R.A. Deibel (sdeibel@archaeopteryx.com)
*
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
* Notes on the implementation:
*
* Source drag context, IDragSource and IDataObject for it are created
* (almost) simultaneously, whereas target drag context and IDropTarget
* are separated in time - IDropTarget is created when a window is made
* to accept drops, while target drag context is created when a dragging
* cursor enters the window and is destroyed when that cursor leaves
* the window.
*
* There's a mismatch between data types supported by W32 (W32 formats)
* and by GTK+ (GDK targets).
* To account for it the data is transmuted back and forth. There are two
* main points of transmutation:
* * GDK convert selection: transmute W32 data to GTK+ data
* * GDK window property change: transmute GTK+ data to W32 data
*
* There are also two points where data formats are considered:
* * When source drag context is created, it gets a list of GTK+ targets
* that it supports, these are matched to the W32 formats they
* correspond to (possibly with transmutation). New W32 formats for
* GTK+-specific formats are also created here (see below).
* * When target drag context is created, it queries the IDataObject
* for the list of W32 formats it supports and matches these to
* corresponding GTK+ formats that it will be able to provide
* (possibly with transmutation) later. Missing GDK targets for
* W32-specific formats are also created here (see below).
Add copyright note and comment for merged old code
2009-12-16 11:47:57 +00:00
*
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
* W32 formats and GTK+ targets are both integers (CLIPFORMAT and GdkAtom
* respectively), but cannot be used interchangeably.
Add copyright note and comment for merged old code
2009-12-16 11:47:57 +00:00
*
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
* To accommodate advanced GTK+ applications the code allows them to
* register drop targets that accept W32 data formats, and to register
* drag sources that provide W32 data formats. To do that they must
* register either with the string name of the format in question
* (for example, "Shell IDList Array") or, for unnamed pre-defined
* formats, register with the stringified constant name of the format
* in question (for example, "CF_UNICODETEXT").
* If such target format is accepted/provided, GDK will not try to
* transmute it to/from something else. Otherwise GDK will do the following
* transmutation:
* * If GTK+ application provides image/png, image/gif or image/jpeg,
* GDK will claim to also provide "PNG", "GIF" or "JFIF" respectively,
* and will pass these along verbatim.
* * If GTK+ application provides any GdkPixbuf-compatible target,
* GDK will also offer "PNG" and CF_DIB W32 formats.
* * If GTK+ application provides UTF8_STRING, GDK will also offer
* CF_UNICODETEXT (UTF-16-encoded) and CF_TEXT (encoded with thread-
* and locale-depenant codepage), and will do the conversion when such
* data is requested.
* * If GTK+ application accepts image/png, image/gif or image/jpeg,
* GDK will claim to also accept "PNG", "GIF" or "JFIF" respectively,
* and will pass these along verbatim.
* * If GTK+ application accepts image/bmp, GDK will
* claim to accept CF_DIB W32 format, and will convert
* it, changing the header, when such data is provided.
* * If GTK+ application accepts UTF8_STRING, GDK will
* claim to accept CF_UNICODETEXT and CF_TEXT, and will do
* the conversion when such data is provided.
* * If GTK+ application accepts text/uri-list, GDK will
* claim to accept "Shell IDList Array", and will do the
* conversion when such data is provided.
Add copyright note and comment for merged old code
2009-12-16 11:47:57 +00:00
*
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
* Currently the conversion from text/uri-list to Shell IDList Array is not
* implemented, so it's not possible to drag & drop files from GTK+
* applications to non-GTK+ applications the same way one can drag files
* from Windows Explorer.
Add copyright note and comment for merged old code
2009-12-16 11:47:57 +00:00
*
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
* To accommodate GTK+ application compaibility the code allows
* GTK+ applications to register drop targets that accept GTK+-specific
* data formats, and to register drag sources that provide GTK+-specific
* data formats. This is done by simply registering target atom names
* as clipboard formats. This way two GTK+ applications can exchange
* data in their native formats (both well-known ones, such as UTF8_STRING,
* and special, known only to specific applications). This will work just
* fine as long as both applications agree on what kind of data is stored
* under such format exactly.
*
* Note that clipboard format space is limited, there can only be 16384
* of them for a particular user session. Therefore it is highly inadvisable
* to create and register such formats out of the whole cloth, dynamically.
* If more flexibility is needed, register one format that has some
* internal indicators of the kind of data it contains, then write the application
* in such a way that it requests the data and inspects its header before deciding
* whether to accept it or not. For details see GTK+ drag & drop documentation
* on the "drag-motion" and "drag-data-received" signals.
Add copyright note and comment for merged old code
2009-12-16 11:47:57 +00:00
*/
GDK-W32: remove trailing whitespace everywhere
2015-04-29 07:31:08 +00:00
Define INITGUID only for mingw.org compiler Defining INITGUID causes a build failure with mingw-w64 > r5589. https://bugzilla.gnome.org/show_bug.cgi?id=699673
2013-05-13 13:45:18 +00:00
/* The mingw.org compiler does not export GUIDS in it's import library. To work
* around that, define INITGUID to have the GUIDS declared. */
#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
#define INITGUID
Define INITGUID only for mingw.org compiler Defining INITGUID causes a build failure with mingw-w64 > r5589. https://bugzilla.gnome.org/show_bug.cgi?id=699673
2013-05-13 13:45:18 +00:00
#endif
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
/* For C-style COM wrapper macros */
#define COBJMACROS
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
#include "gdkdnd.h"
#include "gdkproperty.h"
Large changes to the Win32 backend, partially made necessary by the 2000-05-02 Tor Lillqvist <tml@iki.fi> Large changes to the Win32 backend, partially made necessary by the changes to the backend-independent internal structures. Attempts to implement similar backing store stuff as on X11. The current (CVS) version of the Win32 backend is *not* as stable as it was before the no-flicker branch was merged. A zipfile with that version is available from http://www.gimp.org/win32/. That should be use by "production" code until this CVS version is usable. (But note, the Win32 backend has never been claimed to be "production quality".) * README.win32: Add the above comment about versions. * gdk/gdkwindow.c: Don't use backing store for now on Win32. * gdk/gdk.def: Update. * gdk/gdkfont.h: Declare temporary Win32-only functions. Will presumably be replaced by some more better mechanism as 1.4 gets closer to release shape. * gdk/makefile.{cygwin,msc}: Update. * gdk/win32/*.c: Correct inclusions of the backend-specific and internal headers. Change code according to changes in these. Use gdk_drawable_*, not gdk_window_* where necessary. * gdk/win32/gdkdnd-win32.c: Use MISC selector for GDK_NOTE, not our old DND. * gdk/win32/gdkdrawable-win32.c (gdk_win32_draw_text): Don't try to interpret single characters as UTF-8. Thanks to Hans Breuer. Use correct function name in warning messages. * gdk/win32/gdkevents-win32.c: Use correct parameter lists for the GSourceFuncs gdk_event_prepare and gdk_event_check. (gdk_event_get_graphics_expose): Do implement, use PeekMessage. Thanks to Hans Breuer. (event_mask_string): Debugging function to print an GdkEventMask. (gdk_pointer_grab): Use it. * gdk/win32/gdkfont-win32.c: The Unicode subrange that the (old) book I used claimed was Hangul actually is CJK Unified Ideographs Extension A. Also, Hangul Syllables were missing. Improve logging. * gdk/win32/gdkgc-win32.c: Largish changes. * gdk/win32/gdkim-win32.c (gdk_set_locale): Use g_win32_getlocale() from GLib, and not setlocale() to get current locale name. * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkwin32.h: Move stuff from gdkprivate-win32.h to gdkwin32.h, similarily as in the X11 backend. * gdk/win32/gdkwindow-win32.c (gdk_propagate_shapes): Bugfix, assignment was used instead of equals in if test. Thanks to Hans Breuer. * gdk/win32/makefile.{cygwin,msc} * gtk/makefile.{cygwin,msc}: Updates. Better kludge to get the path to the Win32 headers that works also with the mingw compiler. * gtk/gtkstyle.c: Include <string.h>.
2000-05-01 22:06:49 +00:00
#include "gdkinternals.h"
#include "gdkprivate-win32.h"
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
#include "gdkwin32.h"
#include "gdkwin32dnd.h"
gdk/win32: Fix build after GdkScreen and cursor cleanups Move the leftovers from the removals to use the current APIs, to fix the build. Also for gdk_device_virtual_set_window_cursor(), only do something when a valid GdkCursor is passed in here. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-03 08:37:18 +00:00
#include "gdkdisplayprivate.h"
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
#include "gdk/gdkdndprivate.h"
#include "gdkwin32dnd-private.h"
#include "gdkdisplay-win32.h"
#include "gdkselection-win32.h"
#include "gdkdeviceprivate.h"
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
#include <ole2.h>
#include <shlobj.h>
#include <shlguid.h>
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
#include <objidl.h>
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
#include <gdk/gdk.h>
Awful hack for problem in dnd of images from Firefox on Windows Bypassed with #if 0 because it is an awful hack and not really acceptable from a privacy point of view for instance. It prevents Firefox from deleting temporary files containing images being dragged, so they stay on disk. Bug #561973.
2009-11-14 22:32:14 +00:00
#include <glib/gstdio.h>
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
/* from gdkselection-win32.c */
extern GdkAtom *known_pixbuf_formats;
extern int n_known_pixbuf_formats;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
typedef enum {
GDK_DRAG_STATUS_DRAG,
GDK_DRAG_STATUS_MOTION_WAIT,
GDK_DRAG_STATUS_ACTION_WAIT,
GDK_DRAG_STATUS_DROP
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
} GdkDragStatus;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
static GList *contexts;
static GdkDragContext *current_dest_drag = NULL;
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
static gboolean use_ole2_dnd = FALSE;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
G_DEFINE_TYPE (GdkWin32DragContext, gdk_win32_drag_context, GDK_TYPE_DRAG_CONTEXT)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
static void
move_drag_window (GdkDragContext *context,
guint x_root,
guint y_root)
{
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
gdk_window_move (context_win32->drag_window,
x_root - context_win32->hot_x,
y_root - context_win32->hot_y);
gdk_window_raise (context_win32->drag_window);
}
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
static void
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
gdk_win32_drag_context_init (GdkWin32DragContext *context)
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
contexts = g_list_prepend (contexts, context);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
else
{
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_context_init %p\n", context));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
static void
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
gdk_win32_drag_context_finalize (GObject *object)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkDragContext *context;
GdkWin32DragContext *context_win32;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWindow *drag_window;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_context_finalize %p\n", object));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
g_return_if_fail (GDK_IS_WIN32_DRAG_CONTEXT (object));
context = GDK_DRAG_CONTEXT (object);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
{
contexts = g_list_remove (contexts, context);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (context == current_dest_drag)
current_dest_drag = NULL;
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
drag_window = context_win32->drag_window;
g_array_unref (context_win32->droptarget_format_target_map);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
G_OBJECT_CLASS (gdk_win32_drag_context_parent_class)->finalize (object);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (drag_window)
gdk_window_destroy (drag_window);
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
/* Drag Contexts */
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
win32: Make gdk_drag_context_new static
2011-11-21 13:33:16 +00:00
static GdkDragContext *
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
gdk_drag_context_new (GdkDisplay *display)
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkWin32DragContext *context_win32;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Display *win32_display = GDK_WIN32_DISPLAY (display);
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkDragContext *context;
dnd: Add gdk_drag_context_get_display() Also turn it into a readable, construct-only property. Every GDK object should have this. (Apart from GdkDisplay, obviously.)
2017-12-05 16:30:58 +00:00
context_win32 = g_object_new (GDK_TYPE_WIN32_DRAG_CONTEXT,
"display", display,
NULL);
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
context = GDK_DRAG_CONTEXT(context_win32);
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
gdk_drag_context_set_device (context, gdk_seat_get_pointer (gdk_display_get_default_seat (display)));
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (win32_display->has_fixed_scale)
context_win32->scale = win32_display->window_scale;
else
context_win32->scale = _gdk_win32_display_get_monitor_scale_factor (win32_display, NULL, NULL, NULL);
context_win32->droptarget_format_target_map = g_array_new (FALSE, FALSE, sizeof (GdkSelTargetFormat));
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
return context;
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static GdkDragContext *
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
gdk_drag_context_find (gboolean is_source,
GdkWindow *source,
GdkWindow *dest)
re-adding for manual rename of repository files.
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{
GList *tmp_list = contexts;
GdkDragContext *context;
while (tmp_list)
{
context = (GdkDragContext *)tmp_list->data;
if ((!context->is_source == !is_source) &&
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
((source == NULL) || (context->source_window && (context->source_window == source))) &&
((dest == NULL) || (context->dest_window && (context->dest_window == dest))))
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
return context;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
tmp_list = tmp_list->next;
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return NULL;
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
#define PRINT_GUID(guid) \
g_print ("%.08lx-%.04x-%.04x-%.02x%.02x-%.02x%.02x%.02x%.02x%.02x%.02x", \
((gulong *) guid)[0], \
((gushort *) guid)[2], \
((gushort *) guid)[3], \
((guchar *) guid)[8], \
((guchar *) guid)[9], \
((guchar *) guid)[10], \
((guchar *) guid)[11], \
((guchar *) guid)[12], \
((guchar *) guid)[13], \
((guchar *) guid)[14], \
((guchar *) guid)[15]);
re-adding for manual rename of repository files.
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typedef struct {
IDropTarget idt;
GdkDragContext *context;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gint ref_count;
GdkWindow *dest_window;
re-adding for manual rename of repository files.
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} target_drag_context;
typedef struct {
IDropSource ids;
GdkDragContext *context;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gint ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
} source_drag_context;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
typedef struct {
IDataObject ido;
int ref_count;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GdkDragContext *context;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GArray *formats;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
} data_object;
typedef struct {
IEnumFORMATETC ief;
int ref_count;
int ix;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
data_object *dataobj;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
} enum_formats;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
static source_drag_context *pending_src_context = NULL;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
static source_drag_context *current_src_context = NULL;
static data_object *current_src_object = NULL;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
static enum_formats *enum_formats_new (data_object *dataobj);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
/* map windows -> target drag contexts. The table
* owns a ref to both objects.
*/
static GHashTable* target_ctx_for_window = NULL;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static ULONG STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_addref (LPDROPTARGET This)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
target_drag_context *ctx = (target_drag_context *) This;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
int ref_count = ++ctx->ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("idroptarget_addref %p %d\n", This, ref_count));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Generate gtk/makefile.mingw. 2000-07-25 Tor Lillqvist <tml@iki.fi> * configure.in: Generate gtk/makefile.mingw. * config.h.win32: Add GETTEXT_PACKAGE. * gdk/gdk.def * gtk/gtk.def: Updates. * gdk/gdkfont.h * gdk/gdkpixmap.h: Remove temporary Win32-only functions, we don't need them any longer. * gdk/gdkinput.h: Mark gdk_core_pointer for export/import. * gdk/win32/*.c: More work. * gdk/win32/gdkpango-win32.c: New file. * gtk/makefile.mingw.in: New file * gtk/makefile.cygwin: Removed * gtk/Makefile.am: Update accordingly. * gtk/gtkmain.c: Use gtk_win32_get_installation_directory(). * gtk/gtktextdisplay.c: No need to include pangox.h, pango.h is enough. * gtk/gtktypeutils.c: Mark glib_debug_objects for import.
2000-07-25 20:38:35 +00:00
return ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_queryinterface (LPDROPTARGET This,
REFIID riid,
LPVOID *ppvObject)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, {
g_print ("idroptarget_queryinterface %p ", This);
PRINT_GUID (riid);
});
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*ppvObject = NULL;
if (IsEqualGUID (riid, &IID_IUnknown))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_addref (This);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*ppvObject = This;
return S_OK;
}
else if (IsEqualGUID (riid, &IID_IDropTarget))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IDropTarget S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_addref (This);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*ppvObject = This;
return S_OK;
}
else
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return E_NOINTERFACE;
}
}
static ULONG STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_release (LPDROPTARGET This)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
target_drag_context *ctx = (target_drag_context *) This;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
int ref_count = --ctx->ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("idroptarget_release %p %d\n", This, ref_count));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
if (ref_count == 0)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_object_unref (ctx->context);
g_clear_object (&ctx->dest_window);
g_free (This);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
return ref_count;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
static GdkDragAction
get_suggested_action (DWORD grfKeyState)
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
/* This is the yucky Windows standard: Force link action if both
* Control and Alt are down, copy if Control is down alone, move if
* Alt is down alone, or use default of move within the app or copy
* when origin of the drag is in another app.
*/
if (grfKeyState & MK_CONTROL && grfKeyState & MK_SHIFT)
return GDK_ACTION_LINK; /* Link action not supported */
else if (grfKeyState & MK_CONTROL)
return GDK_ACTION_COPY;
else if (grfKeyState & MK_ALT)
return GDK_ACTION_MOVE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
else if (sel_win32->dnd_source_state == GDK_WIN32_DND_DRAGGING)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return GDK_ACTION_MOVE;
else
return GDK_ACTION_COPY;
/* Any way to determine when to add in DROPEFFECT_SCROLL? */
}
/* Process pending events -- we don't want to service non-GUI events
docs: use proper apostrophe https://wiki.gnome.org/Design/OS/Typography
2014-02-07 18:01:26 +00:00
* forever so do one iteration and then do more only if there’s a
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
* pending GDK event.
*/
static void
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
process_pending_events (GdkDisplay *display)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
g_main_context_iteration (NULL, FALSE);
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
while (_gdk_event_queue_find_first (display))
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
g_main_context_iteration (NULL, FALSE);
}
static DWORD
drop_effect_for_action (GdkDragAction action)
{
switch (action)
{
case GDK_ACTION_MOVE:
return DROPEFFECT_MOVE;
case GDK_ACTION_LINK:
return DROPEFFECT_LINK;
case GDK_ACTION_COPY:
return DROPEFFECT_COPY;
default:
return DROPEFFECT_NONE;
}
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
static GdkDragAction
action_for_drop_effect (DWORD effect)
{
switch (effect)
{
case DROPEFFECT_MOVE:
return GDK_ACTION_MOVE;
case DROPEFFECT_LINK:
return GDK_ACTION_LINK;
case DROPEFFECT_COPY:
return GDK_ACTION_COPY;
default:
return 0;
}
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
static void
dnd_event_put (GdkEventType type,
GdkDragContext *context,
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gint pt_x,
gint pt_y,
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
gboolean to_dest_window)
{
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *e;
e = gdk_event_new (type);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (to_dest_window)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&e->dnd.window, context->dest_window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
else
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&e->dnd.window, context->source_window);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
e->dnd.send_event = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&e->dnd.context, context);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
e->dnd.time = GDK_CURRENT_TIME;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
e->dnd.x_root = pt_x;
e->dnd.y_root = pt_y;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
gdk_event_set_device (e, gdk_drag_context_get_device (context));
win32: Use GdkSeatDefault to implement GdkSeat
2015-12-14 14:44:29 +00:00
gdk_event_set_seat (e, gdk_device_get_seat (gdk_drag_context_get_device (context)));
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (e));
gdk_event_put (e);
gdk_event_free (e);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
static GdkContentFormats *
query_targets (LPDATAOBJECT pDataObj,
GArray *format_target_map)
{
IEnumFORMATETC *pfmt = NULL;
FORMATETC fmt;
GList *result = NULL;
HRESULT hr;
GdkContentFormatsBuilder *builder;
GdkContentFormats *result_formats;
GList *p;
if ((LPDATAOBJECT) current_src_object == pDataObj)
return gdk_content_formats_ref (current_src_object->context->formats);
hr = IDataObject_EnumFormatEtc (pDataObj, DATADIR_GET, &pfmt);
if (SUCCEEDED (hr))
hr = IEnumFORMATETC_Next (pfmt, 1, &fmt, NULL);
while (SUCCEEDED (hr) && hr != S_FALSE)
{
gboolean is_predef;
gchar *registered_name = _gdk_win32_get_clipboard_format_name (fmt.cfFormat, &is_predef);
if (registered_name && is_predef)
GDK_NOTE (DND, g_print ("supported built-in source format 0x%x %s\n", fmt.cfFormat, registered_name));
else if (registered_name)
GDK_NOTE (DND, g_print ("supported source format 0x%x %s\n", fmt.cfFormat, registered_name));
else
GDK_NOTE (DND, g_print ("supported unnamed? source format 0x%x\n", fmt.cfFormat));
g_free (registered_name);
_gdk_win32_add_format_to_targets (fmt.cfFormat, format_target_map, &result);
hr = IEnumFORMATETC_Next (pfmt, 1, &fmt, NULL);
}
if (pfmt)
IEnumFORMATETC_Release (pfmt);
builder = gdk_content_formats_builder_new ();
for (p = g_list_reverse (result); p; p = p->next)
gdk_content_formats_builder_add_mime_type (builder, (const gchar *) p->data);
result_formats = gdk_content_formats_builder_free (builder);
g_list_free (result);
return result_formats;
}
static void
set_data_object (LPDATAOBJECT *location, LPDATAOBJECT data_object)
{
if (*location != NULL)
IDataObject_Release (*location);
*location = data_object;
if (*location != NULL)
IDataObject_AddRef (*location);
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_dragenter (LPDROPTARGET This,
LPDATAOBJECT pDataObj,
DWORD grfKeyState,
POINTL pt,
LPDWORD pdwEffect)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
target_drag_context *ctx = (target_drag_context *) This;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
GdkDragContext *context;
GdkWin32DragContext *context_win32;
gint pt_x;
gint pt_y;
GDK_NOTE (DND, g_print ("idroptarget_dragenter %p @ %ld : %ld for dest window 0x%p S_OK\n", This, pt.x, pt.y, ctx->dest_window));
g_clear_object (&ctx->context);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context = gdk_drag_context_new (gdk_window_get_display (ctx->dest_window));
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
ctx->context = context;
g_set_object (&context->dest_window, ctx->dest_window);
context->protocol = GDK_DRAG_PROTO_OLE2;
context->is_source = FALSE;
context->source_window = NULL;
/* OLE2 DnD does not allow us to get the source window,
* but we *can* find it if it's ours. This is needed to
* support DnD within the same widget, for example.
*/
if (current_src_context && current_src_context->context)
g_set_object (&context->source_window, current_src_context->context->source_window);
GDK W32: Make sure drag source window is not NULL This prevents GTK from throwing a bunch of warnings when it tries to get drag source window -> screen of that window -> ipc widget for that screen, and then tries to attach a signal handler to that widget. Specifically, this happens when we get a DnD move from another application. https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-11-26 13:10:44 +00:00
else
g_set_object (&context->source_window, NULL); /* FIXME: Root window used to be here. Find a substitute? */
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&sel_win32->target_drag_context, context);
context->actions = GDK_ACTION_DEFAULT | GDK_ACTION_COPY | GDK_ACTION_MOVE;
context->suggested_action = GDK_ACTION_MOVE;
context->action = GDK_ACTION_MOVE;
g_array_set_size (context_win32->droptarget_format_target_map, 0);
context->formats = query_targets (pDataObj, context_win32->droptarget_format_target_map);
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
ctx->context->suggested_action = get_suggested_action (grfKeyState);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
set_data_object (&sel_win32->dnd_data_object_target, pDataObj);
pt_x = pt.x / context_win32->scale + _gdk_offset_x;
pt_y = pt.y / context_win32->scale + _gdk_offset_y;
dnd_event_put (GDK_DRAG_ENTER, ctx->context, pt_x, pt_y, TRUE);
dnd_event_put (GDK_DRAG_MOTION, ctx->context, pt_x, pt_y, TRUE);
context_win32->last_key_state = grfKeyState;
context_win32->last_x = pt_x;
context_win32->last_y = pt_y;
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
*pdwEffect = drop_effect_for_action (ctx->context->action);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("idroptarget_dragenter returns with action %d and drop effect %lu\n", ctx->context->action, *pdwEffect));
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
return S_OK;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_dragover (LPDROPTARGET This,
DWORD grfKeyState,
POINTL pt,
LPDWORD pdwEffect)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
target_drag_context *ctx = (target_drag_context *) This;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
gint pt_x = pt.x / context_win32->scale + _gdk_offset_x;
gint pt_y = pt.y / context_win32->scale + _gdk_offset_y;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
ctx->context->suggested_action = get_suggested_action (grfKeyState);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("idroptarget_dragover %p @ %ld : %ld, suggests %d action S_OK\n", This, pt.x, pt.y, ctx->context->suggested_action));
if (pt_x != context_win32->last_x ||
pt_y != context_win32->last_y ||
grfKeyState != context_win32->last_key_state)
{
dnd_event_put (GDK_DRAG_MOTION, ctx->context, pt_x, pt_y, TRUE);
context_win32->last_key_state = grfKeyState;
context_win32->last_x = pt_x;
context_win32->last_y = pt_y;
}
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
*pdwEffect = drop_effect_for_action (ctx->context->action);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("idroptarget_dragover returns with action %d and effect %lu\n", ctx->context->action, *pdwEffect));
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
return S_OK;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_dragleave (LPDROPTARGET This)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
target_drag_context *ctx = (target_drag_context *) This;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idroptarget_dragleave %p S_OK\n", This));
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
dnd_event_put (GDK_DRAG_LEAVE, ctx->context, 0, 0, TRUE);
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_clear_object (&sel_win32->target_drag_context);
g_clear_object (&ctx->context);
set_data_object (&sel_win32->dnd_data_object_target, NULL);
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
return S_OK;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_drop (LPDROPTARGET This,
LPDATAOBJECT pDataObj,
DWORD grfKeyState,
POINTL pt,
LPDWORD pdwEffect)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
target_drag_context *ctx = (target_drag_context *) This;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
gint pt_x = pt.x / context_win32->scale + _gdk_offset_x;
gint pt_y = pt.y / context_win32->scale + _gdk_offset_y;
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idroptarget_drop %p ", This));
if (pDataObj == NULL)
{
GDK_NOTE (DND, g_print ("E_POINTER\n"));
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_clear_object (&ctx->context);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return E_POINTER;
}
ctx->context->suggested_action = get_suggested_action (grfKeyState);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
dnd_event_put (GDK_DROP_START, ctx->context, pt_x, pt_y, TRUE);
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
/* Notify OLE of copy or move */
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (sel_win32->dnd_target_state != GDK_WIN32_DND_DROPPED)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
*pdwEffect = DROPEFFECT_NONE;
else
*pdwEffect = drop_effect_for_action (ctx->context->action);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_clear_object (&sel_win32->target_drag_context);
g_clear_object (&ctx->context);
set_data_object (&sel_win32->dnd_data_object_target, NULL);
GDK_NOTE (DND, g_print ("drop S_OK with effect %lx\n", *pdwEffect));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
return S_OK;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static ULONG STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_addref (LPDROPSOURCE This)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
source_drag_context *ctx = (source_drag_context *) This;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
int ref_count = ++ctx->ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
GDK_NOTE (DND, g_print ("idropsource_addref %p %d\n", This, ref_count));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
return ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_queryinterface (LPDROPSOURCE This,
REFIID riid,
LPVOID *ppvObject)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, {
g_print ("idropsource_queryinterface %p ", This);
PRINT_GUID (riid);
});
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*ppvObject = NULL;
if (IsEqualGUID (riid, &IID_IUnknown))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_addref (This);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*ppvObject = This;
return S_OK;
}
else if (IsEqualGUID (riid, &IID_IDropSource))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IDropSource S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_addref (This);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*ppvObject = This;
return S_OK;
}
else
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return E_NOINTERFACE;
}
}
static ULONG STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_release (LPDROPSOURCE This)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
source_drag_context *ctx = (source_drag_context *) This;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
int ref_count = --ctx->ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("idropsource_release %p %d\n", This, ref_count));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
if (ref_count == 0)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
{
g_clear_object (&ctx->context);
if (current_src_context == ctx)
current_src_context = NULL;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
g_free (This);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
/* Emit GDK events for any changes in mouse events or control key
* state since the last recorded state. Return true if any events
* have been emitted and false otherwise.
*/
static gboolean
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
send_change_events (GdkDragContext *context,
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
DWORD key_state,
gboolean esc_pressed)
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
POINT pt;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
POINT pt_client;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
gboolean changed = FALSE;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
HWND hwnd = GDK_WINDOW_HWND (context->source_window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
LPARAM lparam;
WPARAM wparam;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gint pt_x;
gint pt_y;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (!API_CALL (GetCursorPos, (&pt)))
return FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
pt_client = pt;
if (!API_CALL (ScreenToClient, (hwnd, &pt_client)))
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
pt_x = pt.x / context_win32->scale + _gdk_offset_x;
pt_y = pt.y / context_win32->scale + _gdk_offset_y;
if (pt_x != context_win32->last_x || pt_y != context_win32->last_y ||
key_state != context_win32->last_key_state)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
lparam = MAKELPARAM (pt_client.x, pt_client.y);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
wparam = key_state;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (pt_x != context_win32->last_x || pt_y != context_win32->last_y)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
GDK_NOTE (DND, g_print ("Sending WM_MOUSEMOVE (%ld,%ld)\n", pt.x, pt.y));
SendMessage (hwnd, WM_MOUSEMOVE, wparam, lparam);
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if ((key_state & MK_LBUTTON) != (context_win32->last_key_state & MK_LBUTTON))
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
if (key_state & MK_LBUTTON)
SendMessage (hwnd, WM_LBUTTONDOWN, wparam, lparam);
else
SendMessage (hwnd, WM_LBUTTONUP, wparam, lparam);
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if ((key_state & MK_MBUTTON) != (context_win32->last_key_state & MK_MBUTTON))
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
if (key_state & MK_MBUTTON)
SendMessage (hwnd, WM_MBUTTONDOWN, wparam, lparam);
else
SendMessage (hwnd, WM_MBUTTONUP, wparam, lparam);
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if ((key_state & MK_RBUTTON) != (context_win32->last_key_state & MK_RBUTTON))
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
if (key_state & MK_RBUTTON)
SendMessage (hwnd, WM_RBUTTONDOWN, wparam, lparam);
else
SendMessage (hwnd, WM_RBUTTONUP, wparam, lparam);
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if ((key_state & MK_CONTROL) != (context_win32->last_key_state & MK_CONTROL))
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
if (key_state & MK_CONTROL)
SendMessage (hwnd, WM_KEYDOWN, VK_CONTROL, 0);
else
SendMessage (hwnd, WM_KEYUP, VK_CONTROL, 0);
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if ((key_state & MK_SHIFT) != (context_win32->last_key_state & MK_SHIFT))
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (key_state & MK_SHIFT)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
SendMessage (hwnd, WM_KEYDOWN, VK_SHIFT, 0);
else
SendMessage (hwnd, WM_KEYUP, VK_SHIFT, 0);
}
changed = TRUE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_win32->last_key_state = key_state;
context_win32->last_x = pt_x;
context_win32->last_y = pt_y;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
if (esc_pressed)
{
GDK_NOTE (DND, g_print ("Sending a escape key down message to %p\n", hwnd));
SendMessage (hwnd, WM_KEYDOWN, VK_ESCAPE, 0);
changed = TRUE;
}
return changed;
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_querycontinuedrag (LPDROPSOURCE This,
BOOL fEscapePressed,
DWORD grfKeyState)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
source_drag_context *ctx = (source_drag_context *) This;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("idropsource_querycontinuedrag %p esc=%d keystate=0x%lx with state %d", This, fEscapePressed, grfKeyState, sel_win32->dnd_source_state));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (send_change_events (ctx->context, grfKeyState, fEscapePressed))
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (sel_win32->dnd_source_state == GDK_WIN32_DND_DROPPED)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
GDK_NOTE (DND, g_print ("DRAGDROP_S_DROP\n"));
return DRAGDROP_S_DROP;
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
else if (sel_win32->dnd_source_state == GDK_WIN32_DND_NONE)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
GDK_NOTE (DND, g_print ("DRAGDROP_S_CANCEL\n"));
return DRAGDROP_S_CANCEL;
}
else
{
GDK_NOTE (DND, g_print ("S_OK\n"));
return S_OK;
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_givefeedback (LPDROPSOURCE This,
DWORD dwEffect)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
source_drag_context *ctx = (source_drag_context *) This;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GdkDragAction suggested_action;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkEvent *e;
POINT pt;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("idropsource_givefeedback %p with drop effect %lu S_OK\n", This, dwEffect));
if (!API_CALL (GetCursorPos, (&pt)))
return S_OK;
suggested_action = action_for_drop_effect (dwEffect);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
ctx->context->action = suggested_action;
if (dwEffect == DROPEFFECT_NONE)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_clear_object (&ctx->context->dest_window);
else if (ctx->context->dest_window == NULL)
ctx->context->dest_window = NULL; /* FIXME: Root window was here originally. Find a substitute? */
context_win32->last_x = pt.x / context_win32->scale + _gdk_offset_x;
context_win32->last_y = pt.y / context_win32->scale + _gdk_offset_y;
e = gdk_event_new (GDK_DRAG_STATUS);
g_set_object (&e->dnd.window, ctx->context->source_window);
e->dnd.send_event = FALSE;
g_set_object (&e->dnd.context, ctx->context);
e->dnd.time = GDK_CURRENT_TIME;
e->dnd.x_root = context_win32->last_x;
e->dnd.y_root = context_win32->last_y;
gdk_event_set_device (e, gdk_drag_context_get_device (ctx->context));
gdk_event_set_seat (e, gdk_device_get_seat (gdk_drag_context_get_device (ctx->context)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (e));
gdk_event_put (e);
gdk_event_free (e);
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
GDK_NOTE (DND, g_print ("idropsource_givefeedback %p returns\n", This));
return S_OK;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
static ULONG STDMETHODCALLTYPE
idataobject_addref (LPDATAOBJECT This)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
data_object *dobj = (data_object *) This;
int ref_count = ++dobj->ref_count;
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("idataobject_addref %p %d\n", This, ref_count));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
static HRESULT STDMETHODCALLTYPE
idataobject_queryinterface (LPDATAOBJECT This,
REFIID riid,
LPVOID *ppvObject)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, {
g_print ("idataobject_queryinterface %p ", This);
PRINT_GUID (riid);
});
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
*ppvObject = NULL;
if (IsEqualGUID (riid, &IID_IUnknown))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_addref (This);
*ppvObject = This;
return S_OK;
}
else if (IsEqualGUID (riid, &IID_IDataObject))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IDataObject S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_addref (This);
*ppvObject = This;
return S_OK;
}
else
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return E_NOINTERFACE;
}
re-adding for manual rename of repository files.
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}
static ULONG STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_release (LPDATAOBJECT This)
re-adding for manual rename of repository files.
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{
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
data_object *dobj = (data_object *) This;
int ref_count = --dobj->ref_count;
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("idataobject_release %p %d\n", This, ref_count));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
if (ref_count == 0)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
{
g_array_free (dobj->formats, TRUE);
g_free (This);
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return ref_count;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
static HRESULT
query (LPDATAOBJECT This,
LPFORMATETC pFormatEtc)
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
data_object *ctx = (data_object *) This;
gint i;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (!pFormatEtc)
return DV_E_FORMATETC;
if (pFormatEtc->lindex != -1)
return DV_E_LINDEX;
if ((pFormatEtc->tymed & TYMED_HGLOBAL) == 0)
return DV_E_TYMED;
if ((pFormatEtc->dwAspect & DVASPECT_CONTENT) == 0)
return DV_E_DVASPECT;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
for (i = 0; i < ctx->formats->len; i++)
if (pFormatEtc->cfFormat == g_array_index (ctx->formats, GdkSelTargetFormat, i).format)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return S_OK;
return DV_E_FORMATETC;
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_getdata (LPDATAOBJECT This,
LPFORMATETC pFormatEtc,
LPSTGMEDIUM pMedium)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
data_object *ctx = (data_object *) This;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *win32_sel = _gdk_win32_selection_get ();
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
HRESULT hr;
GdkEvent e;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gint i;
GdkAtom target;
GDK W32: Ensure that selection request is processed To do that, run the message loop for one second or until the side-effect of running the selection request handler is achieved (as opposed to running it until the event is no longer queued). The disavantage of this method is that if the event handling is somehow missed (due to a variety of reasons - after all, it's not a straight path from an event being queued to property_change() being called), this will loop for one second. Since we do process events during that time, this will not hang the application, but might still restrict some of the functionality. https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-09-18 16:49:11 +00:00
gint64 loopend;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_getdata %p %s ",
This, _gdk_win32_cf_to_string (pFormatEtc->cfFormat)));
/* Check whether we can provide requested format */
hr = query (This, pFormatEtc);
if (hr != S_OK)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
{
GDK_NOTE (DND, g_print ("Unsupported format, returning 0x%lx\n", hr));
return hr;
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
/* Append a GDK_SELECTION_REQUEST event and then hope the app sets the
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
* property associated with the _gdk_ole2_dnd atom
*/
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
win32_sel->property_change_format = pFormatEtc->cfFormat;
win32_sel->property_change_data = pMedium;
for (i = 0, target = NULL; i < ctx->formats->len; i++)
{
GdkSelTargetFormat *frec = &g_array_index (ctx->formats, GdkSelTargetFormat, i);
if (frec->format == pFormatEtc->cfFormat)
{
target = frec->target;
win32_sel->property_change_transmute = frec->transmute;
GDK W32: Preserve the target value for change_property() We need to know the target atom value to know when we need to do something with side-effects (since side-effects are expressed via special target values). Previously, the code side-stepped that by looking at the data type (which was rather unique for the one side-effect target that we supported, signalled by the TARGETS target), but for the DELETE target that seems to be no longer an option, hence the new field to carry this information past the convert_selection() routine. This prevents GDK from throwing a warning when trying to convert a DELETE target, which has no format or data objects set. The side-effects for the DELETE target happen earlier, in GTK layer. By the point it gets to change_property(), it's a no-op. https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-11-26 00:21:22 +00:00
win32_sel->property_change_target_atom = frec->target;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
}
}
if (target == NULL)
{
GDK_NOTE (EVENTS, g_print ("(target not found)"));
return E_UNEXPECTED;
}
GDK_NOTE (DND, {
gchar *target_name = gdk_atom_name (target);
g_print ("idataobject_getdata will request target 0x%p (%s) ",
target, target_name);
g_free (target_name);
});
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
memset (&e, 0, sizeof (GdkEvent));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
e.type = GDK_SELECTION_REQUEST;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&e.selection.window, ctx->context->source_window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
e.selection.send_event = FALSE; /* ??? */
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
/* Both selection and property are OLE2_DND, because change_property()
* will only get the property and not the selection. Theoretically we
* could use two different atoms (SELECTION_OLE2_DND and PROPERTY_OLE2_DND),
* but there's little reason to do so.
*/
e.selection.selection = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND);
e.selection.target = target;
/* Requestor here is fake, just to allow the event to be processed */
g_set_object (&e.selection.requestor, ctx->context->source_window);
e.selection.property = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
e.selection.time = GDK_CURRENT_TIME;
GDK_NOTE (EVENTS, _gdk_win32_print_event (&e));
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
gdk_event_put (&e);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK W32: Ensure that selection request is processed To do that, run the message loop for one second or until the side-effect of running the selection request handler is achieved (as opposed to running it until the event is no longer queued). The disavantage of this method is that if the event handling is somehow missed (due to a variety of reasons - after all, it's not a straight path from an event being queued to property_change() being called), this will loop for one second. Since we do process events during that time, this will not hang the application, but might still restrict some of the functionality. https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-09-18 16:49:11 +00:00
/* Don't hold up longer than one second */
loopend = g_get_monotonic_time () + 1000000000;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK W32: Ensure that selection request is processed To do that, run the message loop for one second or until the side-effect of running the selection request handler is achieved (as opposed to running it until the event is no longer queued). The disavantage of this method is that if the event handling is somehow missed (due to a variety of reasons - after all, it's not a straight path from an event being queued to property_change() being called), this will loop for one second. Since we do process events during that time, this will not hang the application, but might still restrict some of the functionality. https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-09-18 16:49:11 +00:00
while (win32_sel->property_change_data != 0 &&
g_get_monotonic_time () < loopend)
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (pMedium->hGlobal == NULL) {
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print (" E_UNEXPECTED\n"));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return E_UNEXPECTED;
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print (" S_OK\n"));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return S_OK;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_getdatahere (LPDATAOBJECT This,
LPFORMATETC pFormatEtc,
LPSTGMEDIUM pMedium)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_getdatahere %p %s E_UNEXPECTED\n",
This, _gdk_win32_cf_to_string (pFormatEtc->cfFormat)));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return E_UNEXPECTED;
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_querygetdata (LPDATAOBJECT This,
LPFORMATETC pFormatEtc)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
HRESULT hr;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
hr = query (This, pFormatEtc);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
#define CASE(x) case x: g_print (#x "\n"); break
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, {
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_print ("idataobject_querygetdata %p %s ",
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
This, _gdk_win32_cf_to_string (pFormatEtc->cfFormat));
switch (hr)
{
CASE (DV_E_FORMATETC);
CASE (DV_E_LINDEX);
CASE (DV_E_TYMED);
CASE (DV_E_DVASPECT);
CASE (S_OK);
default: g_print ("%#lx", hr);
}
});
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return hr;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_getcanonicalformatetc (LPDATAOBJECT This,
LPFORMATETC pFormatEtcIn,
LPFORMATETC pFormatEtcOut)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_getcanonicalformatetc %p E_UNEXPECTED\n", This));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return E_UNEXPECTED;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_setdata (LPDATAOBJECT This,
LPFORMATETC pFormatEtc,
LPSTGMEDIUM pMedium,
BOOL fRelease)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_setdata %p %s E_UNEXPECTED\n",
This, _gdk_win32_cf_to_string (pFormatEtc->cfFormat)));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return E_UNEXPECTED;
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_enumformatetc (LPDATAOBJECT This,
DWORD dwDirection,
LPENUMFORMATETC *ppEnumFormatEtc)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_enumformatetc %p ", This));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
if (dwDirection != DATADIR_GET)
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
{
GDK_NOTE (DND, g_print ("E_NOTIMPL\n"));
return E_NOTIMPL;
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
*ppEnumFormatEtc = &enum_formats_new ((data_object *) This)->ief;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print (" %p S_OK\n", *ppEnumFormatEtc));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return S_OK;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_dadvise (LPDATAOBJECT This,
LPFORMATETC pFormatetc,
DWORD advf,
LPADVISESINK pAdvSink,
DWORD *pdwConnection)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_dadvise %p E_NOTIMPL\n", This));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return E_NOTIMPL;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_dunadvise (LPDATAOBJECT This,
DWORD dwConnection)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_dunadvise %p E_NOTIMPL\n", This));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return E_NOTIMPL;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
static HRESULT STDMETHODCALLTYPE
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_enumdadvise (LPDATAOBJECT This,
LPENUMSTATDATA *ppenumAdvise)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("idataobject_enumdadvise %p OLE_E_ADVISENOTSUPPORTED\n", This));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return OLE_E_ADVISENOTSUPPORTED;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
static ULONG STDMETHODCALLTYPE
ienumformatetc_addref (LPENUMFORMATETC This)
{
enum_formats *en = (enum_formats *) This;
int ref_count = ++en->ref_count;
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("ienumformatetc_addref %p %d\n", This, ref_count));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return ref_count;
}
static HRESULT STDMETHODCALLTYPE
ienumformatetc_queryinterface (LPENUMFORMATETC This,
REFIID riid,
LPVOID *ppvObject)
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, {
g_print ("ienumformatetc_queryinterface %p", This);
PRINT_GUID (riid);
});
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
*ppvObject = NULL;
if (IsEqualGUID (riid, &IID_IUnknown))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
ienumformatetc_addref (This);
*ppvObject = This;
return S_OK;
}
else if (IsEqualGUID (riid, &IID_IEnumFORMATETC))
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...IEnumFORMATETC S_OK\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
ienumformatetc_addref (This);
*ppvObject = This;
return S_OK;
}
else
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return E_NOINTERFACE;
}
}
static ULONG STDMETHODCALLTYPE
ienumformatetc_release (LPENUMFORMATETC This)
{
enum_formats *en = (enum_formats *) This;
int ref_count = --en->ref_count;
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("ienumformatetc_release %p %d\n", This, ref_count));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
if (ref_count == 0)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
{
idataobject_release ((LPDATAOBJECT) en->dataobj);
g_free (This);
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return ref_count;
}
static HRESULT STDMETHODCALLTYPE
ienumformatetc_next (LPENUMFORMATETC This,
ULONG celt,
LPFORMATETC elts,
ULONG *nelt)
{
enum_formats *en = (enum_formats *) This;
win32: fix warnings about signed/unsigned mismatch
2015-10-16 07:22:39 +00:00
ULONG i, n;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
ULONG formats_to_get = celt;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("ienumformatetc_next %p %d %ld ", This, en->ix, celt));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
n = 0;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
for (i = 0; i < formats_to_get; i++)
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
UINT fmt;
if (en->ix >= en->dataobj->formats->len)
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
break;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
fmt = g_array_index (en->dataobj->formats, GdkSelTargetFormat, en->ix++).format;
/* skip internals */
if (fmt == 0 || fmt > 0xFFFF)
{
formats_to_get += 1;
continue;
}
elts[n].cfFormat = fmt;
elts[n].ptd = NULL;
elts[n].dwAspect = DVASPECT_CONTENT;
elts[n].lindex = -1;
elts[n].tymed = TYMED_HGLOBAL;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
n++;
}
if (nelt != NULL)
*nelt = n;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("%s\n", (n == celt) ? "S_OK" : "S_FALSE"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
if (n == celt)
return S_OK;
else
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE
ienumformatetc_skip (LPENUMFORMATETC This,
ULONG celt)
{
enum_formats *en = (enum_formats *) This;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("ienumformatetc_skip %p %d %ld S_OK\n", This, en->ix, celt));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
en->ix += celt;
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
ienumformatetc_reset (LPENUMFORMATETC This)
{
enum_formats *en = (enum_formats *) This;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("ienumformatetc_reset %p S_OK\n", This));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
en->ix = 0;
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
ienumformatetc_clone (LPENUMFORMATETC This,
LPENUMFORMATETC *ppEnumFormatEtc)
{
enum_formats *en = (enum_formats *) This;
enum_formats *new;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("ienumformatetc_clone %p S_OK\n", This));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
new = enum_formats_new (en->dataobj);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
new->ix = en->ix;
*ppEnumFormatEtc = &new->ief;
return S_OK;
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static IDropTargetVtbl idt_vtbl = {
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idroptarget_queryinterface,
idroptarget_addref,
idroptarget_release,
idroptarget_dragenter,
idroptarget_dragover,
idroptarget_dragleave,
idroptarget_drop
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
};
static IDropSourceVtbl ids_vtbl = {
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idropsource_queryinterface,
idropsource_addref,
idropsource_release,
idropsource_querycontinuedrag,
idropsource_givefeedback
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
};
static IDataObjectVtbl ido_vtbl = {
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
idataobject_queryinterface,
idataobject_addref,
idataobject_release,
idataobject_getdata,
idataobject_getdatahere,
idataobject_querygetdata,
idataobject_getcanonicalformatetc,
idataobject_setdata,
idataobject_enumformatetc,
idataobject_dadvise,
idataobject_dunadvise,
idataobject_enumdadvise
};
static IEnumFORMATETCVtbl ief_vtbl = {
ienumformatetc_queryinterface,
ienumformatetc_addref,
ienumformatetc_release,
ienumformatetc_next,
ienumformatetc_skip,
ienumformatetc_reset,
ienumformatetc_clone
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
};
static target_drag_context *
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
target_context_new (GdkWindow *window)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
target_drag_context *result;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
result = g_new0 (target_drag_context, 1);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
result->idt.lpVtbl = &idt_vtbl;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
result->ref_count = 0;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
result->dest_window = g_object_ref (window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
idroptarget_addref (&result->idt);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("target_context_new: %p (window %p)\n", result, result->dest_window));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return result;
}
static source_drag_context *
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
source_context_new (GdkWindow *window,
GdkContentFormats *formats)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkDragContext *context;
GdkWin32DragContext *context_win32;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
source_drag_context *result;
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
context = gdk_drag_context_new (gdk_window_get_display (window));
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
result = g_new0 (source_drag_context, 1);
result->context = context;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
result->ids.lpVtbl = &ids_vtbl;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
result->ref_count = 0;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
result->context->protocol = GDK_DRAG_PROTO_OLE2;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
result->context->is_source = TRUE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
result->context->source_window = g_object_ref (window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
result->context->dest_window = NULL;
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
result->context->formats = gdk_content_formats_ref (formats);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
idropsource_addref (&result->ids);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("source_context_new: %p (drag context %p)\n", result, result->context));
if (current_src_context == NULL)
current_src_context = result;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return result;
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
static data_object *
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
data_object_new (GdkDragContext *context)
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
{
data_object *result;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GList *p;
const char * const *mime_types;
gsize n_mime_types, i;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
result = g_new0 (data_object, 1);
result->ido.lpVtbl = &ido_vtbl;
result->ref_count = 1;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
result->context = context;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
result->formats = g_array_new (FALSE, FALSE, sizeof (GdkSelTargetFormat));
mime_types = gdk_content_formats_get_mime_types (context->formats, &n_mime_types);
for (i = 0; i < n_mime_types; i++)
{
gint added_count = 0;
gint j;
GDK_NOTE (DND, g_print ("DataObject supports target 0x%p\n", mime_types[i]));
added_count = _gdk_win32_add_target_to_selformats (mime_types[i], result->formats);
for (j = 0; j < added_count && result->formats->len - 1 - j >= 0; j++)
GDK_NOTE (DND, g_print ("DataObject will support format 0x%x\n", g_array_index (result->formats, GdkSelTargetFormat, j).format));
}
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("data_object_new: %p\n", result));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return result;
}
static enum_formats *
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
enum_formats_new (data_object *dataobj)
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
{
enum_formats *result;
result = g_new0 (enum_formats, 1);
result->ief.lpVtbl = &ief_vtbl;
result->ref_count = 1;
result->ix = 0;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
result->dataobj = dataobj;
idataobject_addref ((LPDATAOBJECT) dataobj);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
return result;
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
/* From MS Knowledge Base article Q130698 */
Bug 524151 - Dragging of 0-byte files results in an empty filename on 2008-03-24 Tor Lillqvist <tml@novell.com> Bug 524151 - Dragging of 0-byte files results in an empty filename on Windows XP and above * gdk/win32/gdkdnd-win32.c (resolve_link): Check for the file being empty first. For some reason ISHellLink and IPersistFile succeeds in interpreting empty files as shortcuts, claiming the target of the shortcut is an empty path. Change the function to take the wide character file name that the caller already has anyway, to avoid a superfluous conversion from UTF-8 to UTF-16. svn path=/trunk/; revision=19931
2008-03-24 17:35:02 +00:00
static gboolean
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
resolve_link (HWND hWnd,
Bug 524151 - Dragging of 0-byte files results in an empty filename on 2008-03-24 Tor Lillqvist <tml@novell.com> Bug 524151 - Dragging of 0-byte files results in an empty filename on Windows XP and above * gdk/win32/gdkdnd-win32.c (resolve_link): Check for the file being empty first. For some reason ISHellLink and IPersistFile succeeds in interpreting empty files as shortcuts, claiming the target of the shortcut is an empty path. Change the function to take the wide character file name that the caller already has anyway, to avoid a superfluous conversion from UTF-8 to UTF-16. svn path=/trunk/; revision=19931
2008-03-24 17:35:02 +00:00
wchar_t *link,
Bug 544684 - Win64 issue, window handles are assumed to be 32-bit 2008-08-05 Tor Lillqvist <tml@novell.com> Bug 544684 - Win64 issue, window handles are assumed to be 32-bit * gdk/gdkdnd.h * gdk/gdkdnd.c * gdk/win32/gdkdnd-win32.c * gdk/x11/gdkdnd-x11.c: Change return value and type of window id from guint32 to GdkNativeWindow for gdk_drag_get_protocol_for_display() and gdk_drag_get_protocol(). This is not an API break on existing platforms, as GdkNativeWindow has been guint32 for them already. svn path=/trunk/; revision=20988
2008-08-04 22:35:16 +00:00
gchar **lpszPath)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Bug 524151 - Dragging of 0-byte files results in an empty filename on 2008-03-24 Tor Lillqvist <tml@novell.com> Bug 524151 - Dragging of 0-byte files results in an empty filename on Windows XP and above * gdk/win32/gdkdnd-win32.c (resolve_link): Check for the file being empty first. For some reason ISHellLink and IPersistFile succeeds in interpreting empty files as shortcuts, claiming the target of the shortcut is an empty path. Change the function to take the wide character file name that the caller already has anyway, to avoid a superfluous conversion from UTF-8 to UTF-16. svn path=/trunk/; revision=19931
2008-03-24 17:35:02 +00:00
WIN32_FILE_ATTRIBUTE_DATA wfad;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
HRESULT hr;
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
IShellLinkW *pslW = NULL;
IPersistFile *ppf = NULL;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Bug 524151 - Dragging of 0-byte files results in an empty filename on 2008-03-24 Tor Lillqvist <tml@novell.com> Bug 524151 - Dragging of 0-byte files results in an empty filename on Windows XP and above * gdk/win32/gdkdnd-win32.c (resolve_link): Check for the file being empty first. For some reason ISHellLink and IPersistFile succeeds in interpreting empty files as shortcuts, claiming the target of the shortcut is an empty path. Change the function to take the wide character file name that the caller already has anyway, to avoid a superfluous conversion from UTF-8 to UTF-16. svn path=/trunk/; revision=19931
2008-03-24 17:35:02 +00:00
/* Check if the file is empty first because IShellLink::Resolve for
* some reason succeeds with an empty file and returns an empty
* "link target". (#524151)
*/
if (!GetFileAttributesExW (link, GetFileExInfoStandard, &wfad) ||
(wfad.nFileSizeHigh == 0 && wfad.nFileSizeLow == 0))
return FALSE;
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
/* Assume failure to start with: */
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
*lpszPath = 0;
/* Call CoCreateInstance to obtain the IShellLink interface
* pointer. This call fails if CoInitialize is not called, so it is
* assumed that CoInitialize has been called.
*/
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
hr = CoCreateInstance (&CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
&IID_IShellLinkW,
(LPVOID *)&pslW);
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (SUCCEEDED (hr))
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
/* The IShellLink interface supports the IPersistFile
* interface. Get an interface pointer to it.
*/
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
hr = pslW->lpVtbl->QueryInterface (pslW,
&IID_IPersistFile,
(LPVOID *) &ppf);
}
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (SUCCEEDED (hr))
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
{
/* Load the file. */
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
hr = ppf->lpVtbl->Load (ppf, link, STGM_READ);
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (SUCCEEDED (hr))
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
{
/* Resolve the link by calling the Resolve()
* interface function.
*/
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
hr = pslW->lpVtbl->Resolve (pslW, hWnd, SLR_ANY_MATCH | SLR_NO_UI);
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
if (SUCCEEDED (hr))
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
{
Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2006-08-29 Tor Lillqvist <tml@novell.com> Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2.8. It's pointless to keep the Win9x code in here as it isn't being maintained anyway. If somebody is interested, it can always be found in older GTK+ versions, and in CVS. * gdk/win32/gdkcursor-win32.c * gdk/win32/gdkdnd-win32.c * gdk/win32/gdkdrawable-win32.c * gdk/win32/gdkgc-win32.c * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkkeys-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkproperty-win32.c * gdk/win32/gdkselection-win32.c: Remove the G_WIN32_IS_NT_BASED() and G_WIN32_HAVE_WIDECHAR_API() tests and their false (Win9x) branches, and any variables or static functions used only by the Win9x branches. * gdk/win32/gdkprivate-win32.h: Remove backup definitions for constants that aren't missing from current mingw and MSVC6 headers. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: Remove the _gdk_win32_gdi_failed() function. On NT-based Windows GetLastError() returns error codes also for failed GDI calls, so we can use _gdk_win32_api_failed() always.
2006-08-29 23:01:53 +00:00
wchar_t wtarget[MAX_PATH];
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
hr = pslW->lpVtbl->GetPath (pslW, wtarget, MAX_PATH, NULL, 0);
if (SUCCEEDED (hr))
Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2006-08-29 Tor Lillqvist <tml@novell.com> Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2.8. It's pointless to keep the Win9x code in here as it isn't being maintained anyway. If somebody is interested, it can always be found in older GTK+ versions, and in CVS. * gdk/win32/gdkcursor-win32.c * gdk/win32/gdkdnd-win32.c * gdk/win32/gdkdrawable-win32.c * gdk/win32/gdkgc-win32.c * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkkeys-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkproperty-win32.c * gdk/win32/gdkselection-win32.c: Remove the G_WIN32_IS_NT_BASED() and G_WIN32_HAVE_WIDECHAR_API() tests and their false (Win9x) branches, and any variables or static functions used only by the Win9x branches. * gdk/win32/gdkprivate-win32.h: Remove backup definitions for constants that aren't missing from current mingw and MSVC6 headers. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: Remove the _gdk_win32_gdi_failed() function. On NT-based Windows GetLastError() returns error codes also for failed GDI calls, so we can use _gdk_win32_api_failed() always.
2006-08-29 23:01:53 +00:00
*lpszPath = g_utf16_to_utf8 (wtarget, -1, NULL, NULL, NULL);
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
if (ppf)
ppf->lpVtbl->Release (ppf);
Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2006-08-29 Tor Lillqvist <tml@novell.com> Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2.8. It's pointless to keep the Win9x code in here as it isn't being maintained anyway. If somebody is interested, it can always be found in older GTK+ versions, and in CVS. * gdk/win32/gdkcursor-win32.c * gdk/win32/gdkdnd-win32.c * gdk/win32/gdkdrawable-win32.c * gdk/win32/gdkgc-win32.c * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkkeys-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkproperty-win32.c * gdk/win32/gdkselection-win32.c: Remove the G_WIN32_IS_NT_BASED() and G_WIN32_HAVE_WIDECHAR_API() tests and their false (Win9x) branches, and any variables or static functions used only by the Win9x branches. * gdk/win32/gdkprivate-win32.h: Remove backup definitions for constants that aren't missing from current mingw and MSVC6 headers. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: Remove the _gdk_win32_gdi_failed() function. On NT-based Windows GetLastError() returns error codes also for failed GDI calls, so we can use _gdk_win32_api_failed() always.
2006-08-29 23:01:53 +00:00
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
if (pslW)
pslW->lpVtbl->Release (pslW);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
return SUCCEEDED (hr);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Awful hack for problem in dnd of images from Firefox on Windows Bypassed with #if 0 because it is an awful hack and not really acceptable from a privacy point of view for instance. It prevents Firefox from deleting temporary files containing images being dragged, so they stay on disk. Bug #561973.
2009-11-14 22:32:14 +00:00
#if 0
/* Check for filenames like C:\Users\tml\AppData\Local\Temp\d5qtkvvs.bmp */
static gboolean
filename_looks_tempish (const char *filename)
{
char *dirname;
char *p;
const char *q;
gboolean retval = FALSE;
dirname = g_path_get_dirname (filename);
p = dirname;
q = g_get_tmp_dir ();
while (*p && *q &&
((G_IS_DIR_SEPARATOR (*p) && G_IS_DIR_SEPARATOR (*q)) ||
g_ascii_tolower (*p) == g_ascii_tolower (*q)))
p++, q++;
if (!*p && !*q)
retval = TRUE;
g_free (dirname);
return retval;
}
static gboolean
close_it (gpointer data)
{
close (GPOINTER_TO_INT (data));
return FALSE;
}
#endif
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static GdkFilterReturn
gdk_dropfiles_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data)
{
GdkDragContext *context;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32DragContext *context_win32;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
GString *result;
MSG *msg = (MSG *) xev;
HANDLE hdrop;
POINT pt;
Update. 2000-10-09 Tor Lillqvist <tml@iki.fi> * README.win32: Update. * gdk/win32/gdkgeometry-win32.c (gdk_window_clip_changed): Add two lines that had been deleted by mistake (?). * gdk/win32/gdkcursor-win32.c (gdk_cursor_new_from_pixmap): Handle also the case fg==white and bg==black (but still not randomly coloured cursors). Thanks to Wolfgang Sourdeau. * gdk/win32/*.c: Silence gcc -Wall. * gtk/gtk.def: Add missing entry points. Fixes by Hans Breuer: * gdk/makefile.msc * gdk/win32/makefile.msc: Update. * gdk/testgdk.c: If compiling with debugging (with _DEBUG defined, some MSVC thing, presumably), cause breakpoint on failures. Add GDK_NOR case. Call g_log_set_always_fatal. * gdk/win32/gdkwin32id.c (gdk_win32_handle_table_insert): Handle should be pased by reference. * gdk/win32/gdkprivate-win32.h: Correct declaration accordingly. * gdk/win32/*.c: Correct calls to gdk_win32_handle_table_insert. * gdk/win32/gdkevents-win32.c * gdk/win32/gdkwindow-win32.c: Handle WM_CREATE. * gdk/win32/gdkgc-win32.c: Fix mixups of drawable and implementation object. * gdk/win32/gdkimage-win32.c (gdk_image_get): Handle drawables, not just windows. * gdk/win32/gdkpixmap-win32.c (gdk_pixmap_impl_win32_finalize): Use the wrapper object.
2000-10-09 19:49:42 +00:00
gint nfiles, i;
Bug 544684 - Win64 issue, window handles are assumed to be 32-bit 2008-08-05 Tor Lillqvist <tml@novell.com> Bug 544684 - Win64 issue, window handles are assumed to be 32-bit * gdk/gdkdnd.h * gdk/gdkdnd.c * gdk/win32/gdkdnd-win32.c * gdk/x11/gdkdnd-x11.c: Change return value and type of window id from guint32 to GdkNativeWindow for gdk_drag_get_protocol_for_display() and gdk_drag_get_protocol(). This is not an API break on existing platforms, as GdkNativeWindow has been guint32 for them already. svn path=/trunk/; revision=20988
2008-08-04 22:35:16 +00:00
gchar *fileName, *linkedFile;
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
GPtrArray *formats;
formats = g_ptr_array_new ();
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
if (msg->message == WM_DROPFILES)
{
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("WM_DROPFILES: %p\n", msg->hwnd));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
context = gdk_drag_context_new (gdk_window_get_display (event->any.window));
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
context->protocol = GDK_DRAG_PROTO_WIN32_DROPFILES;
context->is_source = FALSE;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
win32: Remove all uses of get_root_window This is following similar changes done in the x11 and broadway backends, but it has not been built. Some fixups may be needed.
2017-11-14 23:05:41 +00:00
context->source_window = NULL;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&context->dest_window, event->any.window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
/* WM_DROPFILES drops are always file names */
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context->formats = gdk_content_formats_new ((const char *[2]) {
"text/uri-list",
NULL
}, 1);
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
Set the actions and suggested_action fields in the GdkDragContext to 2005-06-17 Tor Lillqvist <tml@novell.com> * gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Set the actions and suggested_action fields in the GdkDragContext to GDK_ACTION_COPY. Otherwise apps that check the suggested_action field, like eog, won't accept dropped files.
2005-06-17 19:41:01 +00:00
context->actions = GDK_ACTION_COPY;
context->suggested_action = GDK_ACTION_COPY;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
current_dest_drag = context;
event->dnd.type = GDK_DROP_START;
event->dnd.context = current_dest_drag;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
gdk_event_set_device (event, gdk_drag_context_get_device (current_dest_drag));
win32: Use GdkSeatDefault to implement GdkSeat
2015-12-14 14:44:29 +00:00
gdk_event_set_seat (event, gdk_device_get_seat (gdk_drag_context_get_device (current_dest_drag)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
hdrop = (HANDLE) msg->wParam;
DragQueryPoint (hdrop, &pt);
ClientToScreen (msg->hwnd, &pt);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
event->dnd.x_root = pt.x / context_win32->scale + _gdk_offset_x;
event->dnd.y_root = pt.y / context_win32->scale + _gdk_offset_y;
gdk/win32/gdkprivate-win32.h Rename all global variables and functions to 2002-11-12 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkprivate-win32.h * gdk/win32/*.c: Rename all global variables and functions to start with underscore. Merge from stable: More work on the Win32 backend. The cause of some scrolling problems was that SetWindowPos() and ScrollWindowEx() don't blit those parts of the window they think are invalid. As we didn't keep Windows's update region in synch with GDK's, Windows thought those areas that in fact had been updated were invalid. Calling ValidateRgn() in _gdk_windowing_window_queue_antiexpose() seems to be an elegant and efficient solution, removing from Windows's update region those areas we are about to repaint proactively. In some cases garbage leftover values were used for the clip origin in GdkGCWin32. This showed up as odd blank areas around the pixmaps included in the Text Widget in gtk-demo. Having the clip region either as a GdkRegion or a HRGN in GdkGCWin32 was unnecessary, it's better to just use a HRGN. The translation and antiexpose queue handling in gdkgeometry-win32.c seems unnecessary (and not implementable in the same way as on X11 anyway, no serial numbers) on Windows, ifdeffed out. Don't (try to) do guffaw scrolling as there is no static window gravity on Windows. Guffaw scrolling would be unnecessary anyway, as there is the ScrollWindow() API. This improves the behaviour of the Text Widget demo in gtk-demo a lot. But I have no idea how the lack of static win gravity should be handled in other places where the X11 code uses it. Especially _gdk_window_move_resize_child(). There is still some problem in expose handling. By moving an obscuring window back and forth over testgtk's main window, for instance, every now and then you typically get narrow vertical or horizontal strips of pixels that haven't been properly redrawn after being exposed. A fencepost error somewhere? Otherwise, all of testgtk and gtk-demo except "big windows" now seem to work pretty well. Bug #79720 should be fixed now. * gdk/win32/gdkcolor-win32.c (gdk_win32_color_to_string, gdk_win32_print_paletteentries, gdk_win32_print_system_palette, gdk_win32_print_hpalette) * gdk/win32/gdkdrawable-win32.c (gdk_win32_drawable_description) * gdk/win32/gdkevents-win32.c (gdk_win32_message_name): Move all debugging helper functions to gdkmain-win32.c. * gdk/win32/gdkdrawable-win32.c (_gdk_win32_draw_tiles): Rewrite. Make static. Must take tile origin parameters, too. (gdk_win32_draw_rectangle): Pass the tile/stipple origin to _gdk_win32_draw_tiles(). Remove #if 0 code. (blit_inside_window): Don't call ScrollDC(), that didn't work at all like I thought. A simple call to BitBlt() is enough. * gdk/win32/gdkevents-win32.c (gdk_event_translate) Remove unused latin_locale_loaded variable. (_gdk_win32_get_next_tick): New function. Used to make sure timestamps of events are always increasing, both in events generated from the window procedure and in events gotten via PeekMessage(). Not sure whether this is actually useful, but it seemed as a good idea. (real_window_procedure): Don't use a local GdkEventPrivate variable. Don't attempt any compression of configure or expose events here, handled elsewhere. (erase_background): Accumulate window offsets when traversing up the parent chain for GDK_PARENT_RELATIVE_BG, in order to get correct alignment of background pixmaps. Don't fill with BLACK_BRUSH if GDK_NO_BG. (gdk_event_get_graphics_expose): A bit more verbose debugging output. (gdk_event_translate): Use _gdk_win32_get_next_tick(). In the WM_PAINT handler, don't check for empty update rect. When we get a WM_PAINT, the update region isn't empty. And if it for some strange reason is, that will be handled later anyway. Call GetUpdateRgn() before calling BeginPaint() and EndPaint() (which empty the update region). * gdk/win32/gdkdnd-win32.c * gdk/win32/gdkinput-win32.c: Use _gdk_win32_get_next_tick(). * gdk/win32/gdkfont-win32.c: Use %p to print HFONTs. (gdk_text_size): Remove, unused. * gdk/win32/gdkgc-win32.c: Set clip origins to zero when appropriate. (gdk_gc_copy): Increase refcount on colormap if present. (gdk_win32_hdc_get): Handle just hcliprgn. If we have a stipple, combine it with clip region after selecting into the DC. (_gdk_win32_bitmap_to_hrgn): Rename from _gdk_win32_bitmap_to_region. (_gdk_win3_gdkregion_to_hrgn): New function, code snippet extracted from gdk_win32_hdc_get(). * gdk/win32/gdkgeometry-win32.c: Ifdef out the translate_queue handling. (gdk_window_copy_area_scroll): Increase clipRect to avoid ScrollWindowEx() not scrolling pixels it thinks are invalid. Scroll also children with the ScrollWindowEx() call. No need to call gdk_window_move() on the children. (gdk_window_scroll): Don't do guffaw scrolling. (gdk_window_compute_position): Fix typo, used win32_y where x was intended. (gdk_window_premove, gdk_window_postmove, gdk_window_clip_changed): Add debugging output. (_gdk_windowing_window_queue_antiexpose): Just call ValidateRgn() on the region. (_gdk_window_process_expose): No use for the serial number parameter now. Instead of a rectangle, take a region parameter, as Windows gives us one in WM_PAINT. * gdk/win32/gdkmain-win32.c (_gdk_win32_lbstyle_to_string, _gdk_win32_pstype_to_string, _gdk_win32_psstyle_to_string, _gdk_win32_psendcap_to_string, _gdk_win32_psjoin_to_string, _gdk_win32_rect_to_string, _gdk_win32_gdkrectangle_to_string, _gdk_win32_gdkregion_to_string): New debugging functions. (static_printf): Helper function for the above. sprintfs into a static circular buffer, return value should be used "soon". * gdk/win32/gdkwindow-win32.c (gdk_propagate_shapes): Plug memory leak, free list after use. (gdk_window_gravity_works): Remove, we know that there is no such thing on Windows. (gdk_window_set_static_bit_gravity, gdk_window_set_static_win_gravity): Ditto, remove, they didn't do anything anyway. (_gdk_windowing_window_init, gdk_window_foreign_new): Call _gdk_window_init_position() like in the X11 backend. (gdk_window_reparent): Don't call the now nonexistent gdk_window_set_static_win_gravity(). No idea what should be done instead. (gdk_window_get_geometry): The returned x and y should be relative to parent. Used to be always zero.. (gdk_window_set_static_gravities): Return FALSE if trying to set static gravity. * gdk/win32/gdkprivate-win32.h: Drop the clip_region field from GdkGCWin32. Only use the HRGN hcliprgn. Declare new functions. * gdk/win32/*.c: Use new debugging functions. * gdk/win32/rc/gdk.rc.in: Update copyright year.
2002-11-12 22:17:48 +00:00
event->dnd.time = _gdk_win32_get_next_tick (msg->time);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
nfiles = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
result = g_string_new (NULL);
for (i = 0; i < nfiles; i++)
{
Massive changes. Too many to list here, but I'll try a summary: 2002-02-17 Tor Lillqvist <tml@iki.fi> * gdk/win32/*.c: Massive changes. Too many to list here, but I'll try a summary: 1) Unify GdkPixmap and GdkImage implementation: For each GdkPixmap, allocate a GdkImage, and vice versa. GdkPixmapImplWin32Data has a pointer to the GdkImage. GdkImage::windowing_data is a pointer to the GdkPixmap. This simplifies many pixmap and image related functions a lot, and reduces duplicated code snippets. For instance, there is only one place in gdk/win32 where CreateDIBSection() is called, in the function _gdk_win32_new_pixmap(). Converting a bitmap (GdkPixmap) to a Windows region is almost trivial, with the bitmap bits being readily accessible in the associated GdkImage. All blitting between GdkPixmaps, GdkWindows and GdkImages goes through handled the _gdk_win32_blit() function, which calls different functions to handle the cases of blitting from pixmaps, inside windows (scrolling), or from windows, which all require somewhat different handling. 2) Support 256-color mode. This has long been very broken, now it works more or less OK. Keep the logical palette for each colormap as small as possible while allocating and freeing colors. Select and realize the logical palette associated with a GdkColormap into a DC before drawing or blitting. When the display is in 256-color mode, make it possible for the user to override the size of the palette(s) used with either the GDK_WIN32_MAX_COLORS environment variable, or a -max-colors command line option. It is possible to reduce the palette size all the way down to using just the 16 static colors (which causes the system visual to be of type GDK_VISUAL_STATIC_COLOR. This could possibly be useful if one desperately wants to avoid color flashing. (Note that in order for this to work properly, an as of yet not commited fix to gdkrgb.c is needed.) Handle the palette messages. On WM_PALETTECHANGED, call UpdateColors() for the given window hierarchy. Do this only if a window in some other top-level window hierarchy caused the palette change (realized a palette). Do this max five times in a row (an arbitrarily chosen limit), though, otherwise redraw by generating expose events. On WM_QUERYNEWPALETTE, cause a redraw of the whole window hierarchy by generating GDK_EXPOSE events. 3) Code cleanup in general. For instance, remove the "emulated" X11 structs ColormapStruct, Visual and XStandardColormap. Use the new GDK_DEBUG_* flags for debugging output in the relevant source files. Remove the unused colormap hash table in gdkcolor-win32.c 4) Plug some resource leaks. 2002-02-14 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Use g_filename_to_uri() to actually create legal URIs in the text/uri-list data.
2002-02-17 00:25:05 +00:00
gchar *uri;
Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2006-08-29 Tor Lillqvist <tml@novell.com> Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2.8. It's pointless to keep the Win9x code in here as it isn't being maintained anyway. If somebody is interested, it can always be found in older GTK+ versions, and in CVS. * gdk/win32/gdkcursor-win32.c * gdk/win32/gdkdnd-win32.c * gdk/win32/gdkdrawable-win32.c * gdk/win32/gdkgc-win32.c * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkkeys-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkproperty-win32.c * gdk/win32/gdkselection-win32.c: Remove the G_WIN32_IS_NT_BASED() and G_WIN32_HAVE_WIDECHAR_API() tests and their false (Win9x) branches, and any variables or static functions used only by the Win9x branches. * gdk/win32/gdkprivate-win32.h: Remove backup definitions for constants that aren't missing from current mingw and MSVC6 headers. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: Remove the _gdk_win32_gdi_failed() function. On NT-based Windows GetLastError() returns error codes also for failed GDI calls, so we can use _gdk_win32_api_failed() always.
2006-08-29 23:01:53 +00:00
wchar_t wfn[MAX_PATH];
Massive changes. Too many to list here, but I'll try a summary: 2002-02-17 Tor Lillqvist <tml@iki.fi> * gdk/win32/*.c: Massive changes. Too many to list here, but I'll try a summary: 1) Unify GdkPixmap and GdkImage implementation: For each GdkPixmap, allocate a GdkImage, and vice versa. GdkPixmapImplWin32Data has a pointer to the GdkImage. GdkImage::windowing_data is a pointer to the GdkPixmap. This simplifies many pixmap and image related functions a lot, and reduces duplicated code snippets. For instance, there is only one place in gdk/win32 where CreateDIBSection() is called, in the function _gdk_win32_new_pixmap(). Converting a bitmap (GdkPixmap) to a Windows region is almost trivial, with the bitmap bits being readily accessible in the associated GdkImage. All blitting between GdkPixmaps, GdkWindows and GdkImages goes through handled the _gdk_win32_blit() function, which calls different functions to handle the cases of blitting from pixmaps, inside windows (scrolling), or from windows, which all require somewhat different handling. 2) Support 256-color mode. This has long been very broken, now it works more or less OK. Keep the logical palette for each colormap as small as possible while allocating and freeing colors. Select and realize the logical palette associated with a GdkColormap into a DC before drawing or blitting. When the display is in 256-color mode, make it possible for the user to override the size of the palette(s) used with either the GDK_WIN32_MAX_COLORS environment variable, or a -max-colors command line option. It is possible to reduce the palette size all the way down to using just the 16 static colors (which causes the system visual to be of type GDK_VISUAL_STATIC_COLOR. This could possibly be useful if one desperately wants to avoid color flashing. (Note that in order for this to work properly, an as of yet not commited fix to gdkrgb.c is needed.) Handle the palette messages. On WM_PALETTECHANGED, call UpdateColors() for the given window hierarchy. Do this only if a window in some other top-level window hierarchy caused the palette change (realized a palette). Do this max five times in a row (an arbitrarily chosen limit), though, otherwise redraw by generating expose events. On WM_QUERYNEWPALETTE, cause a redraw of the whole window hierarchy by generating GDK_EXPOSE events. 3) Code cleanup in general. For instance, remove the "emulated" X11 structs ColormapStruct, Visual and XStandardColormap. Use the new GDK_DEBUG_* flags for debugging output in the relevant source files. Remove the unused colormap hash table in gdkcolor-win32.c 4) Plug some resource leaks. 2002-02-14 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Use g_filename_to_uri() to actually create legal URIs in the text/uri-list data.
2002-02-17 00:25:05 +00:00
Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2006-08-29 Tor Lillqvist <tml@novell.com> Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or 2.8. It's pointless to keep the Win9x code in here as it isn't being maintained anyway. If somebody is interested, it can always be found in older GTK+ versions, and in CVS. * gdk/win32/gdkcursor-win32.c * gdk/win32/gdkdnd-win32.c * gdk/win32/gdkdrawable-win32.c * gdk/win32/gdkgc-win32.c * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkkeys-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkproperty-win32.c * gdk/win32/gdkselection-win32.c: Remove the G_WIN32_IS_NT_BASED() and G_WIN32_HAVE_WIDECHAR_API() tests and their false (Win9x) branches, and any variables or static functions used only by the Win9x branches. * gdk/win32/gdkprivate-win32.h: Remove backup definitions for constants that aren't missing from current mingw and MSVC6 headers. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: Remove the _gdk_win32_gdi_failed() function. On NT-based Windows GetLastError() returns error codes also for failed GDI calls, so we can use _gdk_win32_api_failed() always.
2006-08-29 23:01:53 +00:00
DragQueryFileW (hdrop, i, wfn, MAX_PATH);
fileName = g_utf16_to_utf8 (wfn, -1, NULL, NULL, NULL);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
/* Resolve shortcuts */
Bug 524151 - Dragging of 0-byte files results in an empty filename on 2008-03-24 Tor Lillqvist <tml@novell.com> Bug 524151 - Dragging of 0-byte files results in an empty filename on Windows XP and above * gdk/win32/gdkdnd-win32.c (resolve_link): Check for the file being empty first. For some reason ISHellLink and IPersistFile succeeds in interpreting empty files as shortcuts, claiming the target of the shortcut is an empty path. Change the function to take the wide character file name that the caller already has anyway, to avoid a superfluous conversion from UTF-8 to UTF-16. svn path=/trunk/; revision=19931
2008-03-24 17:35:02 +00:00
if (resolve_link (msg->hwnd, wfn, &linkedFile))
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Massive changes. Too many to list here, but I'll try a summary: 2002-02-17 Tor Lillqvist <tml@iki.fi> * gdk/win32/*.c: Massive changes. Too many to list here, but I'll try a summary: 1) Unify GdkPixmap and GdkImage implementation: For each GdkPixmap, allocate a GdkImage, and vice versa. GdkPixmapImplWin32Data has a pointer to the GdkImage. GdkImage::windowing_data is a pointer to the GdkPixmap. This simplifies many pixmap and image related functions a lot, and reduces duplicated code snippets. For instance, there is only one place in gdk/win32 where CreateDIBSection() is called, in the function _gdk_win32_new_pixmap(). Converting a bitmap (GdkPixmap) to a Windows region is almost trivial, with the bitmap bits being readily accessible in the associated GdkImage. All blitting between GdkPixmaps, GdkWindows and GdkImages goes through handled the _gdk_win32_blit() function, which calls different functions to handle the cases of blitting from pixmaps, inside windows (scrolling), or from windows, which all require somewhat different handling. 2) Support 256-color mode. This has long been very broken, now it works more or less OK. Keep the logical palette for each colormap as small as possible while allocating and freeing colors. Select and realize the logical palette associated with a GdkColormap into a DC before drawing or blitting. When the display is in 256-color mode, make it possible for the user to override the size of the palette(s) used with either the GDK_WIN32_MAX_COLORS environment variable, or a -max-colors command line option. It is possible to reduce the palette size all the way down to using just the 16 static colors (which causes the system visual to be of type GDK_VISUAL_STATIC_COLOR. This could possibly be useful if one desperately wants to avoid color flashing. (Note that in order for this to work properly, an as of yet not commited fix to gdkrgb.c is needed.) Handle the palette messages. On WM_PALETTECHANGED, call UpdateColors() for the given window hierarchy. Do this only if a window in some other top-level window hierarchy caused the palette change (realized a palette). Do this max five times in a row (an arbitrarily chosen limit), though, otherwise redraw by generating expose events. On WM_QUERYNEWPALETTE, cause a redraw of the whole window hierarchy by generating GDK_EXPOSE events. 3) Code cleanup in general. For instance, remove the "emulated" X11 structs ColormapStruct, Visual and XStandardColormap. Use the new GDK_DEBUG_* flags for debugging output in the relevant source files. Remove the unused colormap hash table in gdkcolor-win32.c 4) Plug some resource leaks. 2002-02-14 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Use g_filename_to_uri() to actually create legal URIs in the text/uri-list data.
2002-02-17 00:25:05 +00:00
uri = g_filename_to_uri (linkedFile, NULL, NULL);
if (uri != NULL)
{
g_string_append (result, uri);
Print debugging output only if asked for, not always. 2005-03-16 Tor Lillqvist <tml@novell.com> * gdk/win32/gdkdisplay-win32.c (_win32_on_clipboard_change): Print debugging output only if asked for, not always. * gdk/win32/*.c: Use the %+d%+d format for coordinate pairs in debugging printout instead of +%d+%d. Misc other additions and cosmetic improvements to debugging printouts. Use API_CALL() and GDI_CALL() macros in more places. * gdk/win32/gdkwindow-win32.c (gdk_window_move, gdk_window_resize, gdk_window_move_resize): To detect child windows, check whether the real parent is not the desktop window, instead of relying on the GDK window type being GDK_WINDOW_CHILD. Foreign GtkPlug windows have a GDK window type GDK_WINDOW_FOREIGN, but are still de facto child windows.
2005-03-16 01:38:57 +00:00
GDK_NOTE (DND, g_print ("... %s link to %s: %s\n",
Massive changes. Too many to list here, but I'll try a summary: 2002-02-17 Tor Lillqvist <tml@iki.fi> * gdk/win32/*.c: Massive changes. Too many to list here, but I'll try a summary: 1) Unify GdkPixmap and GdkImage implementation: For each GdkPixmap, allocate a GdkImage, and vice versa. GdkPixmapImplWin32Data has a pointer to the GdkImage. GdkImage::windowing_data is a pointer to the GdkPixmap. This simplifies many pixmap and image related functions a lot, and reduces duplicated code snippets. For instance, there is only one place in gdk/win32 where CreateDIBSection() is called, in the function _gdk_win32_new_pixmap(). Converting a bitmap (GdkPixmap) to a Windows region is almost trivial, with the bitmap bits being readily accessible in the associated GdkImage. All blitting between GdkPixmaps, GdkWindows and GdkImages goes through handled the _gdk_win32_blit() function, which calls different functions to handle the cases of blitting from pixmaps, inside windows (scrolling), or from windows, which all require somewhat different handling. 2) Support 256-color mode. This has long been very broken, now it works more or less OK. Keep the logical palette for each colormap as small as possible while allocating and freeing colors. Select and realize the logical palette associated with a GdkColormap into a DC before drawing or blitting. When the display is in 256-color mode, make it possible for the user to override the size of the palette(s) used with either the GDK_WIN32_MAX_COLORS environment variable, or a -max-colors command line option. It is possible to reduce the palette size all the way down to using just the 16 static colors (which causes the system visual to be of type GDK_VISUAL_STATIC_COLOR. This could possibly be useful if one desperately wants to avoid color flashing. (Note that in order for this to work properly, an as of yet not commited fix to gdkrgb.c is needed.) Handle the palette messages. On WM_PALETTECHANGED, call UpdateColors() for the given window hierarchy. Do this only if a window in some other top-level window hierarchy caused the palette change (realized a palette). Do this max five times in a row (an arbitrarily chosen limit), though, otherwise redraw by generating expose events. On WM_QUERYNEWPALETTE, cause a redraw of the whole window hierarchy by generating GDK_EXPOSE events. 3) Code cleanup in general. For instance, remove the "emulated" X11 structs ColormapStruct, Visual and XStandardColormap. Use the new GDK_DEBUG_* flags for debugging output in the relevant source files. Remove the unused colormap hash table in gdkcolor-win32.c 4) Plug some resource leaks. 2002-02-14 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Use g_filename_to_uri() to actually create legal URIs in the text/uri-list data.
2002-02-17 00:25:05 +00:00
fileName, linkedFile, uri));
g_free (uri);
}
Awful hack for problem in dnd of images from Firefox on Windows Bypassed with #if 0 because it is an awful hack and not really acceptable from a privacy point of view for instance. It prevents Firefox from deleting temporary files containing images being dragged, so they stay on disk. Bug #561973.
2009-11-14 22:32:14 +00:00
g_free (fileName);
fileName = linkedFile;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
else
{
Massive changes. Too many to list here, but I'll try a summary: 2002-02-17 Tor Lillqvist <tml@iki.fi> * gdk/win32/*.c: Massive changes. Too many to list here, but I'll try a summary: 1) Unify GdkPixmap and GdkImage implementation: For each GdkPixmap, allocate a GdkImage, and vice versa. GdkPixmapImplWin32Data has a pointer to the GdkImage. GdkImage::windowing_data is a pointer to the GdkPixmap. This simplifies many pixmap and image related functions a lot, and reduces duplicated code snippets. For instance, there is only one place in gdk/win32 where CreateDIBSection() is called, in the function _gdk_win32_new_pixmap(). Converting a bitmap (GdkPixmap) to a Windows region is almost trivial, with the bitmap bits being readily accessible in the associated GdkImage. All blitting between GdkPixmaps, GdkWindows and GdkImages goes through handled the _gdk_win32_blit() function, which calls different functions to handle the cases of blitting from pixmaps, inside windows (scrolling), or from windows, which all require somewhat different handling. 2) Support 256-color mode. This has long been very broken, now it works more or less OK. Keep the logical palette for each colormap as small as possible while allocating and freeing colors. Select and realize the logical palette associated with a GdkColormap into a DC before drawing or blitting. When the display is in 256-color mode, make it possible for the user to override the size of the palette(s) used with either the GDK_WIN32_MAX_COLORS environment variable, or a -max-colors command line option. It is possible to reduce the palette size all the way down to using just the 16 static colors (which causes the system visual to be of type GDK_VISUAL_STATIC_COLOR. This could possibly be useful if one desperately wants to avoid color flashing. (Note that in order for this to work properly, an as of yet not commited fix to gdkrgb.c is needed.) Handle the palette messages. On WM_PALETTECHANGED, call UpdateColors() for the given window hierarchy. Do this only if a window in some other top-level window hierarchy caused the palette change (realized a palette). Do this max five times in a row (an arbitrarily chosen limit), though, otherwise redraw by generating expose events. On WM_QUERYNEWPALETTE, cause a redraw of the whole window hierarchy by generating GDK_EXPOSE events. 3) Code cleanup in general. For instance, remove the "emulated" X11 structs ColormapStruct, Visual and XStandardColormap. Use the new GDK_DEBUG_* flags for debugging output in the relevant source files. Remove the unused colormap hash table in gdkcolor-win32.c 4) Plug some resource leaks. 2002-02-14 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Use g_filename_to_uri() to actually create legal URIs in the text/uri-list data.
2002-02-17 00:25:05 +00:00
uri = g_filename_to_uri (fileName, NULL, NULL);
if (uri != NULL)
{
g_string_append (result, uri);
Print debugging output only if asked for, not always. 2005-03-16 Tor Lillqvist <tml@novell.com> * gdk/win32/gdkdisplay-win32.c (_win32_on_clipboard_change): Print debugging output only if asked for, not always. * gdk/win32/*.c: Use the %+d%+d format for coordinate pairs in debugging printout instead of +%d+%d. Misc other additions and cosmetic improvements to debugging printouts. Use API_CALL() and GDI_CALL() macros in more places. * gdk/win32/gdkwindow-win32.c (gdk_window_move, gdk_window_resize, gdk_window_move_resize): To detect child windows, check whether the real parent is not the desktop window, instead of relying on the GDK window type being GDK_WINDOW_CHILD. Foreign GtkPlug windows have a GDK window type GDK_WINDOW_FOREIGN, but are still de facto child windows.
2005-03-16 01:38:57 +00:00
GDK_NOTE (DND, g_print ("... %s: %s\n", fileName, uri));
Massive changes. Too many to list here, but I'll try a summary: 2002-02-17 Tor Lillqvist <tml@iki.fi> * gdk/win32/*.c: Massive changes. Too many to list here, but I'll try a summary: 1) Unify GdkPixmap and GdkImage implementation: For each GdkPixmap, allocate a GdkImage, and vice versa. GdkPixmapImplWin32Data has a pointer to the GdkImage. GdkImage::windowing_data is a pointer to the GdkPixmap. This simplifies many pixmap and image related functions a lot, and reduces duplicated code snippets. For instance, there is only one place in gdk/win32 where CreateDIBSection() is called, in the function _gdk_win32_new_pixmap(). Converting a bitmap (GdkPixmap) to a Windows region is almost trivial, with the bitmap bits being readily accessible in the associated GdkImage. All blitting between GdkPixmaps, GdkWindows and GdkImages goes through handled the _gdk_win32_blit() function, which calls different functions to handle the cases of blitting from pixmaps, inside windows (scrolling), or from windows, which all require somewhat different handling. 2) Support 256-color mode. This has long been very broken, now it works more or less OK. Keep the logical palette for each colormap as small as possible while allocating and freeing colors. Select and realize the logical palette associated with a GdkColormap into a DC before drawing or blitting. When the display is in 256-color mode, make it possible for the user to override the size of the palette(s) used with either the GDK_WIN32_MAX_COLORS environment variable, or a -max-colors command line option. It is possible to reduce the palette size all the way down to using just the 16 static colors (which causes the system visual to be of type GDK_VISUAL_STATIC_COLOR. This could possibly be useful if one desperately wants to avoid color flashing. (Note that in order for this to work properly, an as of yet not commited fix to gdkrgb.c is needed.) Handle the palette messages. On WM_PALETTECHANGED, call UpdateColors() for the given window hierarchy. Do this only if a window in some other top-level window hierarchy caused the palette change (realized a palette). Do this max five times in a row (an arbitrarily chosen limit), though, otherwise redraw by generating expose events. On WM_QUERYNEWPALETTE, cause a redraw of the whole window hierarchy by generating GDK_EXPOSE events. 3) Code cleanup in general. For instance, remove the "emulated" X11 structs ColormapStruct, Visual and XStandardColormap. Use the new GDK_DEBUG_* flags for debugging output in the relevant source files. Remove the unused colormap hash table in gdkcolor-win32.c 4) Plug some resource leaks. 2002-02-14 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Use g_filename_to_uri() to actually create legal URIs in the text/uri-list data.
2002-02-17 00:25:05 +00:00
g_free (uri);
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Awful hack for problem in dnd of images from Firefox on Windows Bypassed with #if 0 because it is an awful hack and not really acceptable from a privacy point of view for instance. It prevents Firefox from deleting temporary files containing images being dragged, so they stay on disk. Bug #561973.
2009-11-14 22:32:14 +00:00
#if 0
/* Awful hack to recognize temp files corresponding to
* images dragged from Firefox... Open the file right here
* so that it is less likely that Firefox manages to delete
* it before the GTK+-using app (typically GIMP) has opened
* it.
*
* Not compiled in for now, because it means images dragged
* from Firefox would stay around in the temp folder which
* is not what Firefox intended. I don't feel comfortable
* with that, both from a geenral sanity point of view, and
* from a privacy point of view. It's better to wait for
* Firefox to fix the problem, for instance by deleting the
* temp file after a longer delay, or to wait until we
* implement the OLE2_DND...
*/
if (filename_looks_tempish (fileName))
{
int fd = g_open (fileName, _O_RDONLY|_O_BINARY, 0);
if (fd == -1)
{
GDK_NOTE (DND, g_print ("Could not open %s, maybe an image dragged from Firefox that it already deleted\n", fileName));
}
else
{
GDK_NOTE (DND, g_print ("Opened %s as %d so that Firefox won't delete it\n", fileName, fd));
g_timeout_add_seconds (1, close_it, GINT_TO_POINTER (fd));
}
}
#endif
Use wide character API when available. Use UTF-8 for filenames. 2004-12-19 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (resolve_link, gdk_dropfiles_filter): Use wide character API when available. Use UTF-8 for filenames. * gdk/win32/gdkselection-win32.c (_gdk_dropfiles_store): Include the string's trailing zero byte in the property's length, just for safety.
2004-12-19 21:00:58 +00:00
g_free (fileName);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
g_string_append (result, "\015\012");
}
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
_gdk_dropfiles_store (result->str);
g_string_free (result, FALSE);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
DragFinish (hdrop);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return GDK_FILTER_TRANSLATE;
}
else
return GDK_FILTER_CONTINUE;
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
void
Make gdkx.h the only installed header from gdk/x11. All structures in Fri Sep 7 11:51:44 2001 Owen Taylor <otaylor@redhat.com> Make gdkx.h the only installed header from gdk/x11. All structures in gdk/x11 are opaque. * gdk/x11/Makefile.am gdk/x11/gdkx.h gdk/x11/gdkprivate-x11.h: Don't install gdk{drawable,pixmap,window}-x11.h. * gdk/x11/{gdkcolormap-x11.c, gdkfont-x11.c, gdkx.h, gdkvisual-x11.c: Move GdkColormapPrivateX11, GdkFontPrivateX GdkImagePrivateX11, GdkVisualClass into C files. * gdk/gdkpixmap-x11.[ch]: Make gdk_pixmap_impl_get_type() static. * gdk/x11/{gdkcolor-x11.c, gdkcursor-x11.c, gdkdrawable-x11.c, gdkfont-x11.c, gdkgc-x11.c, gdkx.h, gdkimage-x11,gdkvisual-x11.c} Add public functions to replace previously exported direct structure access. gdk_x11_colormap_get_{xdisplay,xcolormap} gdk_x11_cursor_get_{xdisplay,xcursor}, gdk_x11_drawable_get_{xdisplay,xcursor,gdk_x11_visual_get_xvisual, gdk_x11_font_get_{xdisplay,xfont}, gdk_x11_image_get_{xdisplay,ximage}, gdk_x11_gc_get_{xdisplay,ximage} * gdk/gdkprivate.h gdk/gdkinternals.h: Move GdkColorInfo, GdkEventFilter, GdkClientFilter, GdkFontPrivate to gdkinternals. Fix a number of variables and functions that were exported "accidentally" from GDK. * gdk/**.[ch]: gdk => _gdk for gdk_visual_init, gdk_events_init, gdk_input_init, gdk_dnd_init, gdk_image_exit, gdk_input_exit, gdk_windowing_exit, gdk_event_func, gdk_event_data, gdk_event_notify, gdk_queued_events, gdk_queued_tail, gdk_event_new, gdk_events_queue, gdk_events_unqueue, gdk_event_queue_find_first, gdk_event_queue_remove_link, gdk_event_queue_append, gdk_event_button_generate, gdk_debug_flags, gdk_default_filters, gdk_parent_root. * gdk/x11/{gdkevents-x11.c, gdkglobals-x11.c, gdkimage-x11.c, gdkmain-x11.c, gdkprivate-x11.h, gdk/x11/gdkwindow-x11.c}: gdk => _gdk for gdk_event_mask_table, gkd_nevent_masks, gdk_wm_window_protocols, gdk_leader_window, gdk_xgrab_window, gdk_use_xshm, gdk_input_ignore_core. * gdk/x11/xsettings-common.h (xsettings_list_insert): Add #defines to namespace functions into the private _gdk_ namespace. * gdk/gdkwindow.[ch] gdk/x11/gdkx.h: Add gdk_get_default_root_window () to replace gdk_parent_root exported variable. Adjust and deprecate GDK_ROOT_PARENT(). * demos/{testpixbuf-drawable.c,testpixbuf-save.c}: Fix GDK_ROOT_PARENT usage, remove includes of port-specific headers. * gdk/{win32,x11,fb}/gdkinput*.[ch]: s/gdk/_gdk/ for _gdk_input_gxid_host, _gdk_input_gxid_port, _gdk_input_ignore_core, gdk_input_devices, _gdk_input_windows, gdk_init_input_core. * gdk/x11/{gdkevents-x11.,c gdkglobals-x11.c, gdkmain-x11.c} docs/Changes-2.0.txt: Remove gdk_wm_protocols, gdk_wm_delete_window functions, gdk_wm_take_focus, use gdk_atom_intern() instead. * gdk/linux-fb/{gdkselection-fb.c, gdkmain-fb.c, gdkprivatefb.h} gdk/win32/{gdkselection-win32.c, gdkmgdkwin32.h, gdkprivate-win32.h} gdk/x11/{gdkselection-x11.c gdkx.h, gtkprivate-x11.h} gtk/gtkselection.c Unexport gdk_selection_property, just use gdk_atom_intern ("GDK_SELECTION"). * gdk/x11/{gdkprivate-x11.h,gdkdrawable-x11h,gdkgc-x11.c,gdkx.h}: Unexport gdk_drawable_impl_x11_get_type, gdk_gc_x11_get_type, GDK_GC_X11 cast macros, GdkGCX11 structures, GdkCursorPrivate, GdkVisualprivate, gdk_x11_gc_flush. Make a number of public exports of variables into functions to increase encapsulation. * gdk/gdkinternals.h gdk/gdkinput.h gdk/gdkevents.h gdk/linux-fb/gdkmouse-fb.c: gdk_core_pointer => _gdk_core_pointer, move to gdkinternals.h. Add gdk_device_get_core_pointer (). * gdk/gdkprivate.h gdk/gdkpango.c gdk/gdkinternals.h docs/Changes-2.0.txt: Unexport gdk_parent_root, gdk_error_code, gdk_error_warnings. * gdk/x11/{gdkcolormap-x11.c, gdkmain-x11.c, gdkx.h} docs/Changes-2.0.txt: s/gdk_screen/_gdk_screen/, add gdk_x11_get_default_screen() s/gdk_root_window/_gdk_root_window/, add gdk_x11_get_default_root_xwindow() Add gdk_x11_get_default_xdisplay(). * gdk/gdk.h gdk/gdk.c linux-fb/gdkfb.h linux-fb/gdkglobals-fb.c win32/gdkwin32.h x11/gdkglobals-x11.c gdk/x11/gdkmain-x11.c gdk/x11/gdkx.h: gdk/gdk.def: Add gdk_get/set_program_class, Don't export gdk_progclass, move --class command line option and handling to common portion of GDK. Miscellaneous fixes: * gdk/x11/gdkwindow-x11.c (gdk_window_set_icon_list): Fix g_return_val_if_fail that should have been g_return_if_fail. * gdk/gdkinternals.h gdk/gdkprivate.h: Move gdk_synthesize_window_state() to the semi-public gdkprivate.h. * gtk/gtkdnd.c (_gtk_drag_source_handle_event): Remove uneeded X11 dependency. * gdk/linux-fb/gdkmain-fb.c gdk/win32/gdkmain-win32.c gdk/TODO: Remove unused gdk_key_repeat_disable/restore. * linux-fb/gdkglobals-fb.c win32/gdkglobals-win32.c x11/gdkglobals-x11.c x11/gdkprivate-x11.h gdk/gdk.def: Remove unused gdk_null_window_warnings variable. * gdk/Makefile.am (DIST_SUBDIRS) nanox/*: cvs remove nanox; it can be retrieved from the repository; it is too far from functional to be worth having people check out; it would be easier to start from scratch, I suspect. * gdk/x11/gdkpixmap-x11.c: Fix lvalue usage of GDK_PIXMAP_XID(). * gdk/x11/gdkkeys-x11.c gdk/gdkrgb.c gdk/gdkwindow.c gdk/x11/gdkpango-x11.c gdk/x11/gdkselection-x11.c: Fix some accidentally global variables and unused global variables. * gdk/x11/gdkkeys-x11.c gdk/gdkrgb.c gdk/gdkwindow.c gdk/x11/gdkpango-x11.c gdk/x11/gdkselection-x11.c: Fix some accidentally global variables and unused global variables. Add some space for future expansion to multihead. * gdk/gdkdrawable.h: Add four reserved function pointers for future expansion of GdkDrawableClass. * gtk/gtkwindow.h gtk/gtkinvisible.h: Add reserved pointer where we can put a GdkScreen * later.
2001-09-07 21:50:20 +00:00
_gdk_dnd_init (void)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Win32: move CoInitialize to dnd init Functions requiring CoInitialize are called just in two places: - the filechooser thread which calls its own CoInitializeEx - the dnd code Moving CoInitialize in the dnd specific init is cleaner and we can pair it with the corresponding CoUninitialize since CoUninitialize should be called as many times as CoInitialize. Note that it is ok to call this function multiple times, so it will not break if another codepath will need it in the future. The patch also replaces the deprecated CoInitialize with the equivalent call to CoInitializeEx (already used in the filechooser).
2015-12-14 18:40:25 +00:00
CoInitializeEx (NULL, COINIT_APARTMENTTHREADED);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (getenv ("GDK_WIN32_USE_EXPERIMENTAL_OLE2_DND"))
use_ole2_dnd = TRUE;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (use_ole2_dnd)
{
HRESULT hr;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
hr = OleInitialize (NULL);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (! SUCCEEDED (hr))
g_error ("OleInitialize failed");
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
target_ctx_for_window = g_hash_table_new (g_direct_hash, g_direct_equal);
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
void
static correct-ness, underscore prefixing of library internal functions 2001-10-28 Hans Breuer <hans@breuer.org> * gdk/gdk.c gdk/gdkevents.c gdk/win32/gdkcolor-win32.c gdk/win32/gdkdnd-win32.c gdk/win32/gdkdrawable-win32.c gdk/win32/gdkevents-win32.c gdk/win32/gdkfont-win32.c gdk/win32/gdkgc-win32.c gdk/win32/gdkim-win32.c gdk/win32/gdkmain-win32.c gdk/win32/gdkprivate-win32.h gdk/win32/gdkproperty-win32.c gdk/win32/gdkselection-win32.c gdk/win32/gdkwin32.h gdk/win32/gdkwindow-win32.c gdk/win32/gdkwindow-win32.h : static correct-ness, underscore prefixing of library internal functions (applied the undisputed and the win32 part. Of the latter I'm probably the one who will change it back again, if Owen decides that the Gdk*Impl types should not be private to Gdk) * gdk/gdk.def : added the remaining exported functions
2001-10-28 21:28:51 +00:00
_gdk_win32_dnd_exit (void)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (use_ole2_dnd)
{
OleUninitialize ();
}
Win32: move CoInitialize to dnd init Functions requiring CoInitialize are called just in two places: - the filechooser thread which calls its own CoInitializeEx - the dnd code Moving CoInitialize in the dnd specific init is cleaner and we can pair it with the corresponding CoUninitialize since CoUninitialize should be called as many times as CoInitialize. Note that it is ok to call this function multiple times, so it will not break if another codepath will need it in the future. The patch also replaces the deprecated CoInitialize with the equivalent call to CoInitializeEx (already used in the filechooser).
2015-12-14 18:40:25 +00:00
CoUninitialize ();
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
/* Source side */
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
static void
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
local_send_leave (GdkDragContext *context,
guint32 time)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *tmp_event;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
GDK_NOTE (DND, g_print ("local_send_leave: context=%p current_dest_drag=%p\n",
context,
current_dest_drag));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
if ((current_dest_drag != NULL) &&
(current_dest_drag->protocol == GDK_DRAG_PROTO_LOCAL) &&
(current_dest_drag->source_window == context->source_window))
{
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event = gdk_event_new (GDK_DRAG_LEAVE);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.window, context->dest_window);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
/* Pass ownership of context to the event */
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.send_event = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.context, current_dest_drag);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (context));
win32: Use GdkSeatDefault to implement GdkSeat
2015-12-14 14:44:29 +00:00
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (context)));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
current_dest_drag = NULL;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
gdk_event_free (tmp_event);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
}
static void
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
local_send_enter (GdkDragContext *context,
guint32 time)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *tmp_event;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
GdkDragContext *new_context;
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
GDK_NOTE (DND, g_print ("local_send_enter: context=%p current_dest_drag=%p\n",
context,
current_dest_drag));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
if (current_dest_drag != NULL)
{
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
g_object_unref (G_OBJECT (current_dest_drag));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
current_dest_drag = NULL;
}
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
new_context = gdk_drag_context_new (gdk_window_get_display (context->source_window));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
new_context->protocol = GDK_DRAG_PROTO_LOCAL;
new_context->is_source = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&new_context->source_window, context->source_window);
g_set_object (&new_context->dest_window, context->dest_window);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
new_context->formats = gdk_content_formats_ref (context->formats);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
gdk_window_set_events (new_context->source_window,
gdk_window_get_events (new_context->source_window) |
GDK_PROPERTY_CHANGE_MASK);
new_context->actions = context->actions;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event = gdk_event_new (GDK_DRAG_ENTER);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.window, context->dest_window);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.send_event = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.context, new_context);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (context));
win32: Use GdkSeatDefault to implement GdkSeat
2015-12-14 14:44:29 +00:00
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (context)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
current_dest_drag = new_context;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
gdk_event_free (tmp_event);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
static void
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
local_send_motion (GdkDragContext *context,
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
gint x_root,
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
gint y_root,
GdkDragAction action,
guint32 time)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *tmp_event;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("local_send_motion: context=%p (%d,%d) current_dest_drag=%p\n",
context, x_root, y_root,
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
current_dest_drag));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
if ((current_dest_drag != NULL) &&
(current_dest_drag->protocol == GDK_DRAG_PROTO_LOCAL) &&
(current_dest_drag->source_window == context->source_window))
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkWin32DragContext *current_dest_drag_win32;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event = gdk_event_new (GDK_DRAG_MOTION);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.window, current_dest_drag->dest_window);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.send_event = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.context, current_dest_drag);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.time = time;
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (current_dest_drag));
win32: Use GdkSeatDefault to implement GdkSeat
2015-12-14 14:44:29 +00:00
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (current_dest_drag)));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
current_dest_drag->suggested_action = action;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.x_root = x_root;
tmp_event->dnd.y_root = y_root;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
current_dest_drag_win32 = GDK_WIN32_DRAG_CONTEXT (current_dest_drag);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
current_dest_drag_win32->last_x = x_root;
current_dest_drag_win32->last_y = y_root;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
context_win32->drag_status = GDK_DRAG_STATUS_MOTION_WAIT;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
gdk_event_free (tmp_event);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
}
static void
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
local_send_drop (GdkDragContext *context,
guint32 time)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *tmp_event;
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
GDK_NOTE (DND, g_print ("local_send_drop: context=%p current_dest_drag=%p\n",
context,
current_dest_drag));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
if ((current_dest_drag != NULL) &&
(current_dest_drag->protocol == GDK_DRAG_PROTO_LOCAL) &&
(current_dest_drag->source_window == context->source_window))
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkWin32DragContext *context_win32;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
set current_dest_drag to NULL when destroying, fixes bug #120007. Also 2004-02-28 Hans Breuer <hans@breuer.org> * gdk/win32/gdkdnd-win32.c : set current_dest_drag to NULL when destroying, fixes bug #120007. Also removed the mirrored ref counting for deprecated gdk_drag_context_<ref|unref>() cause it wasn't reliable anymore anyway. * gdk/win32/gdkdisplay-win32.c : fix typo, which should have broken the win32 build for everyone not using msvc * gdk/win32/gdkevents-win32.c : WM_GETMINAMXINFO ensure not to return negative values for ptMaxTrackSize, it caused snapping windows to their minimum size
2004-02-28 13:21:25 +00:00
/* Pass ownership of context to the event */
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event = gdk_event_new (GDK_DROP_START);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.window, current_dest_drag->dest_window);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.send_event = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.context, current_dest_drag);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.time = GDK_CURRENT_TIME;
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (current_dest_drag));
win32: Use GdkSeatDefault to implement GdkSeat
2015-12-14 14:44:29 +00:00
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (current_dest_drag)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
context_win32 = GDK_WIN32_DRAG_CONTEXT (current_dest_drag);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
tmp_event->dnd.x_root = context_win32->last_x;
tmp_event->dnd.y_root = context_win32->last_y;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
set current_dest_drag to NULL when destroying, fixes bug #120007. Also 2004-02-28 Hans Breuer <hans@breuer.org> * gdk/win32/gdkdnd-win32.c : set current_dest_drag to NULL when destroying, fixes bug #120007. Also removed the mirrored ref counting for deprecated gdk_drag_context_<ref|unref>() cause it wasn't reliable anymore anyway. * gdk/win32/gdkdisplay-win32.c : fix typo, which should have broken the win32 build for everyone not using msvc * gdk/win32/gdkevents-win32.c : WM_GETMINAMXINFO ensure not to return negative values for ptMaxTrackSize, it caused snapping windows to their minimum size
2004-02-28 13:21:25 +00:00
current_dest_drag = NULL;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
gdk_event_free (tmp_event);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static void
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
gdk_drag_do_leave (GdkDragContext *context,
guint32 time)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
if (context->dest_window)
{
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_do_leave\n"));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
{
if (context->protocol == GDK_DRAG_PROTO_LOCAL)
local_send_leave (context, time);
}
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_clear_object (&context->dest_window);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
static GdkWindow *
create_drag_window (GdkDisplay *display)
{
GdkWindow *window;
window = gdk_window_new_popup (display, &(GdkRectangle) { 0, 0, 100, 100 });
gdk_window_set_type_hint (window, GDK_WINDOW_TYPE_HINT_DND);
return window;
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GdkDragContext *
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
_gdk_win32_window_drag_begin (GdkWindow *window,
GdkDevice *device,
GdkContentFormats *formats,
gint x_root,
gint y_root)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkDragContext *new_context;
GdkWin32DragContext *context_win32;
BYTE kbd_state[256];
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
{
g_return_val_if_fail (window != NULL, NULL);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
win32: Remove _gdk_display usge from dnd code
2016-02-06 05:35:41 +00:00
new_context = gdk_drag_context_new (gdk_window_get_display (window));
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
new_context->is_source = TRUE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&new_context->source_window, window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
new_context->formats = gdk_content_formats_ref (formats);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
new_context->actions = 0;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_win32 = GDK_WIN32_DRAG_CONTEXT (new_context);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
else
{
source_drag_context *ctx;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
g_return_val_if_fail (window != NULL, NULL);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_begin\n"));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK/Win32: Fix build after GDK Root Window and DND changes Ensure that things build again, and instead use the Windows API to acquire the screen dimensions (note: this may need to be scaled for HiDPI, but since I do not own a WinTab-based device, I will need to keep the dimensions as-is for now). Also update the gdkdnd-win32.c code to use formats rather than targets. https://bugzilla.gnome.org/show_bug.cgi?id=773299
2017-11-17 07:27:10 +00:00
ctx = source_context_new (window, formats);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
sel_win32->dnd_source_state = GDK_WIN32_DND_PENDING;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
pending_src_context = ctx;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
new_context = g_object_ref (ctx->context);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_win32 = GDK_WIN32_DRAG_CONTEXT (new_context);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_win32->start_x = x_root;
context_win32->start_y = y_root;
context_win32->last_x = context_win32->start_x;
context_win32->last_y = context_win32->start_y;
context_win32->last_key_state = 0;
API_CALL (GetKeyboardState, (kbd_state));
if (kbd_state[VK_CONTROL] & 0x80)
context_win32->last_key_state |= MK_CONTROL;
if (kbd_state[VK_SHIFT] & 0x80)
context_win32->last_key_state |= MK_SHIFT;
if (kbd_state[VK_LBUTTON] & 0x80)
context_win32->last_key_state |= MK_LBUTTON;
if (kbd_state[VK_MBUTTON] & 0x80)
context_win32->last_key_state |= MK_MBUTTON;
if (kbd_state[VK_RBUTTON] & 0x80)
context_win32->last_key_state |= MK_RBUTTON;
context_win32->drag_window = create_drag_window (gdk_window_get_display (window));
return new_context;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
void
_gdk_win32_dnd_do_dragdrop (void)
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkDragContext* drag_ctx;
data_object *dobj;
HRESULT hr;
DWORD dwEffect;
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (!use_ole2_dnd)
return;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (pending_src_context == NULL)
return;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
drag_ctx = pending_src_context->context;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
dobj = data_object_new (drag_ctx);
current_src_object = dobj;
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
/* Start dragging with mainloop inside the OLE2 API. Exits only when done */
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("Calling DoDragDrop\n"));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
_gdk_win32_begin_modal_call (GDK_WIN32_MODAL_OP_DND);
hr = DoDragDrop (&dobj->ido, &pending_src_context->ids,
DROPEFFECT_COPY | DROPEFFECT_MOVE,
&dwEffect);
_gdk_win32_end_modal_call (GDK_WIN32_MODAL_OP_DND);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("DoDragDrop returned %s\n",
(hr == DRAGDROP_S_DROP ? "DRAGDROP_S_DROP" :
(hr == DRAGDROP_S_CANCEL ? "DRAGDROP_S_CANCEL" :
(hr == E_UNEXPECTED ? "E_UNEXPECTED" :
g_strdup_printf ("%#.8lx", hr))))));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
/* Delete dnd selection after successful move */
if (hr == DRAGDROP_S_DROP && dwEffect == DROPEFFECT_MOVE)
{
GDK W32: Preserve the target value for change_property() We need to know the target atom value to know when we need to do something with side-effects (since side-effects are expressed via special target values). Previously, the code side-stepped that by looking at the data type (which was rather unique for the one side-effect target that we supported, signalled by the TARGETS target), but for the DELETE target that seems to be no longer an option, hence the new field to carry this information past the convert_selection() routine. This prevents GDK from throwing a warning when trying to convert a DELETE target, which has no format or data objects set. The side-effects for the DELETE target happen earlier, in GTK layer. By the point it gets to change_property(), it's a no-op. https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-11-26 00:21:22 +00:00
GdkWin32Selection *win32_sel = _gdk_win32_selection_get ();
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkEvent tmp_event;
memset (&tmp_event, 0, sizeof (tmp_event));
tmp_event.type = GDK_SELECTION_REQUEST;
g_set_object (&tmp_event.selection.window, drag_ctx->source_window);
tmp_event.selection.send_event = FALSE;
tmp_event.selection.selection = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND);
tmp_event.selection.target = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_DELETE);
GDK W32: Preserve the target value for change_property() We need to know the target atom value to know when we need to do something with side-effects (since side-effects are expressed via special target values). Previously, the code side-stepped that by looking at the data type (which was rather unique for the one side-effect target that we supported, signalled by the TARGETS target), but for the DELETE target that seems to be no longer an option, hence the new field to carry this information past the convert_selection() routine. This prevents GDK from throwing a warning when trying to convert a DELETE target, which has no format or data objects set. The side-effects for the DELETE target happen earlier, in GTK layer. By the point it gets to change_property(), it's a no-op. https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-11-26 00:21:22 +00:00
win32_sel->property_change_target_atom = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_DELETE);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
tmp_event.selection.property = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND);
g_set_object (&tmp_event.selection.requestor, drag_ctx->source_window);
tmp_event.selection.time = GDK_CURRENT_TIME; /* ??? */
GDK_NOTE (EVENTS, _gdk_win32_print_event (&tmp_event));
gdk_event_put (&tmp_event);
}
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
{
GdkEvent *tmp_event;
tmp_event = gdk_event_new (GDK_DROP_FINISHED);
g_set_object (&tmp_event->dnd.window, drag_ctx->source_window);
tmp_event->dnd.send_event = FALSE;
g_set_object (&tmp_event->dnd.context, drag_ctx);
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (drag_ctx));
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (drag_ctx)));
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
gdk_event_free (tmp_event);
}
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
current_src_object = NULL;
dobj->ido.lpVtbl->Release (&dobj->ido);
if (pending_src_context != NULL)
{
pending_src_context->ids.lpVtbl->Release (&pending_src_context->ids);
pending_src_context = NULL;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
typedef struct {
gint x;
gint y;
HWND ignore;
HWND result;
} find_window_enum_arg;
static BOOL CALLBACK
find_window_enum_proc (HWND hwnd,
LPARAM lparam)
{
RECT rect;
POINT tl, br;
find_window_enum_arg *a = (find_window_enum_arg *) lparam;
if (hwnd == a->ignore)
return TRUE;
if (!IsWindowVisible (hwnd))
return TRUE;
tl.x = tl.y = 0;
ClientToScreen (hwnd, &tl);
GetClientRect (hwnd, &rect);
br.x = rect.right;
br.y = rect.bottom;
ClientToScreen (hwnd, &br);
if (a->x >= tl.x && a->y >= tl.y && a->x < br.x && a->y < br.y)
{
a->result = hwnd;
return FALSE;
}
else
return TRUE;
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static GdkWindow *
gdk_win32_drag_context_find_window (GdkDragContext *context,
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
GdkWindow *drag_window,
gint x_root,
gint y_root,
GdkDragProtocol *protocol)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
GdkWindow *dest_window, *dw;
find_window_enum_arg a;
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
a.x = x_root * context_win32->scale - _gdk_offset_x;
a.y = y_root * context_win32->scale - _gdk_offset_y;
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
a.ignore = drag_window ? GDK_WINDOW_HWND (drag_window) : NULL;
a.result = NULL;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND,
g_print ("gdk_drag_find_window_real: %p %+d%+d\n",
(drag_window ? GDK_WINDOW_HWND (drag_window) : NULL),
a.x, a.y));
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
EnumWindows (find_window_enum_proc, (LPARAM) &a);
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
if (a.result == NULL)
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
dest_window = NULL;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
else
{
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
dw = gdk_win32_handle_table_lookup (a.result);
if (dw)
{
dest_window = gdk_window_get_toplevel (dw);
g_object_ref (dest_window);
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
else
dnd: Drop GdkScreen from apis Drop the screen argument from gdk_dnd_find_window_for_screen and rename the function to gdk_dnd_find_window. The screen argument does not add anything here since the drag context is already tied to the display. Update all backends, and update all callers.
2017-10-31 14:16:18 +00:00
dest_window = gdk_win32_window_foreign_new_for_display (context->display, a.result);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (use_ole2_dnd)
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
*protocol = GDK_DRAG_PROTO_OLE2;
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
else if (context->source_window)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
*protocol = GDK_DRAG_PROTO_LOCAL;
else
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
*protocol = GDK_DRAG_PROTO_WIN32_DROPFILES;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND,
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
g_print ("gdk_drag_find_window: %p %+d%+d: %p: %p %s\n",
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
(drag_window ? GDK_WINDOW_HWND (drag_window) : NULL),
x_root, y_root,
win32: Fix DnD when drag icon is below the pointer By reverting gdk_drag_find_window_for_screen logic to what it was before eb21a7df290936223f6a80cef36b52a8c68a1d22. The old logic knew how to ignore drag_window when searching for dest_window, but that code was removed (I guess by accident). https://bugzilla.gnome.org/show_bug.cgi?id=616544
2011-09-19 13:42:19 +00:00
a.result,
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
(dest_window ? GDK_WINDOW_HWND (dest_window) : NULL),
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
_gdk_win32_drag_protocol_to_string (*protocol)));
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
return dest_window;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static gboolean
gdk_win32_drag_context_drag_motion (GdkDragContext *context,
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
GdkWindow *dest_window,
GdkDragProtocol protocol,
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
gint x_root,
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
gint y_root,
GdkDragAction suggested_action,
GdkDragAction possible_actions,
guint32 time)
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkWin32DragContext *context_win32;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
g_return_val_if_fail (context != NULL, FALSE);
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
context->actions = possible_actions;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_motion: @ %+d:%+d %s suggested=%s, possible=%s\n"
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
" context=%p:{actions=%s,suggested=%s,action=%s}\n",
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
x_root, y_root,
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
_gdk_win32_drag_protocol_to_string (protocol),
_gdk_win32_drag_action_to_string (suggested_action),
_gdk_win32_drag_action_to_string (possible_actions),
context,
_gdk_win32_drag_action_to_string (context->actions),
_gdk_win32_drag_action_to_string (context->suggested_action),
_gdk_win32_drag_action_to_string (context->action)));
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (context_win32->drag_window)
move_drag_window (context, x_root, y_root);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (context->dest_window == dest_window)
{
GdkDragContext *dest_context;
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
dest_context = gdk_drag_context_find (FALSE,
context->source_window,
dest_window);
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (dest_context)
dest_context->actions = context->actions;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
context->suggested_action = suggested_action;
}
else
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *tmp_event;
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
/* Send a leave to the last destination */
gdk_drag_do_leave (context, time);
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
context_win32->drag_status = GDK_DRAG_STATUS_DRAG;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
/* Check if new destination accepts drags, and which protocol */
if (dest_window)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&context->dest_window, dest_window);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
context->protocol = protocol;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
switch (protocol)
{
case GDK_DRAG_PROTO_LOCAL:
local_send_enter (context, time);
break;
default:
break;
}
context->suggested_action = suggested_action;
}
else
{
context->dest_window = NULL;
context->action = 0;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
/* Push a status event, to let the client know that
* the drag changed
*/
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
tmp_event = gdk_event_new (GDK_DRAG_STATUS);
g_set_object (&tmp_event->dnd.window, context->source_window);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
/* We use this to signal a synthetic status. Perhaps
* we should use an extra field...
*/
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.send_event = TRUE;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.context, context);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.time = time;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (context));
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (context)));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gdk_event_free (tmp_event);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
/* Send a drag-motion event */
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_win32->last_x = x_root;
context_win32->last_y = y_root;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (context->dest_window)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
if (context_win32->drag_status == GDK_DRAG_STATUS_DRAG)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
switch (context->protocol)
{
case GDK_DRAG_PROTO_LOCAL:
local_send_motion (context, x_root, y_root, suggested_action, time);
break;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
case GDK_DRAG_PROTO_NONE:
g_warning ("GDK_DRAG_PROTO_NONE is not valid in gdk_drag_motion()");
break;
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
default:
break;
}
}
else
{
GDK_NOTE (DND, g_print (" returning TRUE\n"
" context=%p:{actions=%s,suggested=%s,action=%s}\n",
context,
_gdk_win32_drag_action_to_string (context->actions),
_gdk_win32_drag_action_to_string (context->suggested_action),
_gdk_win32_drag_action_to_string (context->action)));
return TRUE;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
}
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
GDK_NOTE (DND, g_print (" returning FALSE\n"
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
" context=%p:{actions=%s,suggested=%s,action=%s}\n",
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
context,
_gdk_win32_drag_action_to_string (context->actions),
_gdk_win32_drag_action_to_string (context->suggested_action),
_gdk_win32_drag_action_to_string (context->action)));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
return FALSE;
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static void
gdk_win32_drag_context_drag_drop (GdkDragContext *context,
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
guint32 time)
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
g_return_if_fail (context != NULL);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_drop\n"));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
{
if (context->dest_window &&
context->protocol == GDK_DRAG_PROTO_LOCAL)
local_send_drop (context, time);
}
else
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
sel_win32->dnd_source_state = GDK_WIN32_DND_DROPPED;
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static void
gdk_win32_drag_context_drag_abort (GdkDragContext *context,
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
guint32 time)
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
g_return_if_fail (context != NULL);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_abort\n"));
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (use_ole2_dnd)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
sel_win32->dnd_source_state = GDK_WIN32_DND_NONE;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
/* Destination side */
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static void
gdk_win32_drag_context_drag_status (GdkDragContext *context,
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
GdkDragAction action,
guint32 time)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
GdkDragContext *src_context;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *tmp_event;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
g_return_if_fail (context != NULL);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
GDK_NOTE (DND, g_print ("gdk_drag_status: %s\n"
" context=%p:{actions=%s,suggested=%s,action=%s}\n",
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong 2009-03-11 Tor Lillqvist <tml@iki.fi> Bug 573067 - Intra-app dnd of text behavior on Windows is wrong * gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion): The default action should be move, not copy. Tweak how the GdkDragAction fields in GdkDragContexts are changed. Seems to help the problem. Add more debugging printout for --gdk-debug=dnd to many functions. * gdk/win32/gdkmain-win32.c * gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string) (_gdk_win32_drag_action_to_string): New functions for use in debugging printouts. svn path=/trunk/; revision=22522
2009-03-11 14:09:13 +00:00
_gdk_win32_drag_action_to_string (action),
context,
_gdk_win32_drag_action_to_string (context->actions),
_gdk_win32_drag_action_to_string (context->suggested_action),
_gdk_win32_drag_action_to_string (context->action)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
context->action = action;
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
src_context = gdk_drag_context_find (TRUE,
context->source_window,
context->dest_window);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (src_context)
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32DragContext *src_context_win32 = GDK_WIN32_DRAG_CONTEXT (src_context);
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
if (src_context_win32->drag_status == GDK_DRAG_STATUS_MOTION_WAIT)
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
src_context_win32->drag_status = GDK_DRAG_STATUS_DRAG;
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event = gdk_event_new (GDK_DRAG_STATUS);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.window, context->source_window);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.send_event = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.context, src_context);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (src_context));
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (src_context)));
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (action == GDK_ACTION_DEFAULT)
action = 0;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
src_context->action = action;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gdk_event_free (tmp_event);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static void
gdk_win32_drag_context_drop_reply (GdkDragContext *context,
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
gboolean ok,
guint32 time)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
g_return_if_fail (context != NULL);
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
GDK_NOTE (DND, g_print ("gdk_drop_reply\n"));
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
if (context->dest_window)
{
if (context->protocol == GDK_DRAG_PROTO_WIN32_DROPFILES)
_gdk_dropfiles_store (NULL);
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static void
gdk_win32_drag_context_drop_finish (GdkDragContext *context,
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
gboolean success,
guint32 time)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
GdkDragContext *src_context;
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GdkEvent *tmp_event;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
g_return_if_fail (context != NULL);
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
GDK_NOTE (DND, g_print ("gdk_drop_finish\n"));
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
src_context = gdk_drag_context_find (TRUE,
context->source_window,
context->dest_window);
if (src_context)
{
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
tmp_event = gdk_event_new (GDK_DROP_FINISHED);
g_set_object (&tmp_event->dnd.window, src_context->source_window);
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
tmp_event->dnd.send_event = FALSE;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
g_set_object (&tmp_event->dnd.context, src_context);
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (src_context));
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (src_context)));
Merge the xi2-for-master branch
2010-05-25 22:38:44 +00:00
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
gdk_event_put (tmp_event);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gdk_event_free (tmp_event);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
else
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
{
gdk_drag_do_leave (context, time);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (success)
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
sel_win32->dnd_target_state = GDK_WIN32_DND_DROPPED;
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
else
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
sel_win32->dnd_target_state = GDK_WIN32_DND_FAILED;
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
}
}
gdk/gdk.def Update. 2000-11-11 Tor Lillqvist <tml@iki.fi> * gdk/gdk.def * gtk/gtk.def: Update. * gdk/win32/*.c: Add last argument to g_type_register_static() calls. * gdk/win32/gdkwindow-win32.c: Silence gcc -Wall. * gdk/win32/gdkevents-win32.c: Handle MSH_MOUSEWHEEL messages generated by older wheel mouse drivers. Get the correct y coordinate from WM_MOUSEWHEEL messages. * gdk/win32/gdkgc-win32.c (gdk_win32_cap_style_to_string, gdk_win32_fill_style_to_string, gdk_win32_function_to_string, gdk_win32_join_style_to_string, gdk_win32_line_style_to_string): Debugging functions. * gdk/win32/gdkprivate-win32.h: Declare them. * gdk/win32/gdkinput-win32.h: Add declaration for gdk_input_window_destroy(). * gtk/makefile.mingw.in: Pass -DGTK_VERSION. Add gtktreemodel.o. * gdk_pixbuf.def: Add gdk_pixbuf_new_subpixbuf.
2000-11-11 18:39:57 +00:00
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
#if 0
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
static GdkFilterReturn
gdk_destroy_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data)
{
MSG *msg = (MSG *) xev;
if (msg->message == WM_DESTROY)
{
IDropTarget *idtp = (IDropTarget *) data;
New function, callback proc for EnumWindows(). 2003-06-30 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (find_window_enum_proc): New function, callback proc for EnumWindows(). (gdk_drag_find_window_for_screen): Actually take the drag_window argument into account: Instead of using WindowFromPoint(), use EnumWindows(), to be able to skip the drag_window. (#116320, Tony M Brown, Herman Bloggs) * gdk/win32/*.c: Replace gdk_drawable_ref()/unref() and gdk_window_ref()/unref() calls with g_object_ref()/unref(). Consistently use %p format in debugging output of pointers and HANDLEs.
2003-06-30 21:58:24 +00:00
GDK_NOTE (DND, g_print ("gdk_destroy_filter: WM_DESTROY: %p\n", msg->hwnd));
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
#if 0
idtp->lpVtbl->Release (idtp);
#endif
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
RevokeDragDrop (msg->hwnd);
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
CoLockObjectExternal ((IUnknown*) idtp, FALSE, TRUE);
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
return GDK_FILTER_CONTINUE;
}
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
#endif
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
void
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
_gdk_win32_window_register_dnd (GdkWindow *window)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Fix typo. I had deleted a ! operator by mistake, which caused 2000-05-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkevents-win32.c (gdk_event_translate): Fix typo. I had deleted a ! operator by mistake, which caused GDK_SELECTION_CLEAR events never to be generated, which caused only the first copy to the clipboard from an gtkeditable to actually cause a copy to the Windows clipboard. 2000-05-06 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Enable shortcut resolution for gcc compilation, too. Current mingw gcc distributions include the necessary headers. Also the necessary IIDs are now in mingw headers/libraries, and own definitions unnecessary. More hacking on OLE2 DND, still doesn't work though, and thus ifdeffed out. * gdk/win32/gdkwindow-win32.c: Remove gdk_window_clear() from here, too.
2000-05-07 19:45:27 +00:00
target_drag_context *ctx;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
HRESULT hr;
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
g_return_if_fail (window != NULL);
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
if (g_object_get_data (G_OBJECT (window), "gdk-dnd-registered") != NULL)
updated externals 2001-08-18 Hans Breuer <hans@breuer.org> * gdk/gdk.def : updated externals * gdk/win32/gdkselection-win32.c : returning TRUE with gdk_selection_set is required to get (at least) visible in entry fields. Some selections are really handled now - even on win32 - but copying via middle mouse button into a different app needs to wait ... * gdk/win32/gdkdnd-win32.c : implemented inter-app drag&drop mostly by stealling code from gdkdnd-fb.c. Thanks to who ever wrote it! * gdk/win32/gdkevents-win32.c : some tweaking to get better expose handling. I'm not sure if it is better now, but at least not worse * gdk/win32/gdkgeometry-win32.c : replaced every call to MoveWindow with SetWindowPos () which allows more fine-tuning backing-store wise * gdk/win32/gdkwindow-win32.c : allow unraised gdk_window_show (). Also changed move/resize to be more like the X version. * gtk/gtk.def : updated externals
2001-08-19 18:34:59 +00:00
return;
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
else
g_object_set_data (G_OBJECT (window), "gdk-dnd-registered", GINT_TO_POINTER (TRUE));
Apply the same fixes and improvements as to the gtk-1-3-win32-production 2002-01-10 Tor Lillqvist <tml@iki.fi> Apply the same fixes and improvements as to the gtk-1-3-win32-production branch: Bug fixes and cleanup of selection and DND functionality. Still doesn't work as well as the win32-production branch, though, but getting closer. After this, need to add Archaeopteryx Software's OLE2 DND support. * gdk/win32/gdkselection-win32.c (gdk_selection_owner_set, gdk_selection_send_notify, generate_selection_notify): Don't use SendMessage() to generate events for the same app, instead use gdk_event_put(). * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c * gdk/win32/gdkmain-win32.c * gdk/win32/gdkevents-win32.c: Thus, remove declaration, definition, initialisation and handling of gdk_selection_notify_msg, gdk_selection_request_msg and gdk_selection_clear_msg. * gdk/win32/gdkselection-win32.c (gdk_text_property_to_text_list, gdk_free_text_list, gdk_string_to_compound_text, gdk_free_compound_text): Implement trivially, witrh a text_list always having a single element, and a compound text always consisting of just a single (UTF-8!) string. Let's see how well this works. * gdk/win32/gdkselection-win32.c (gdk_selection_convert): Fix non-ASCII paste from the clipboard: Try getting the same formats from the Windows clipboard that gdk_property_change() puts there: CF_UNICODETEXT, UTF8_STRING or CF_TEXT+CF_LOCALE. * gdk/win32/gdkproperty-win32.c (gdk_property_change): When storing text on the clipboard, handle non-ASCII text correctly. The logic is as follows: If we have only ASCII characters, use CF_TEXT. Else, if we are on NT, use CF_UNICODETEXT. Else (we are on Win9x), if all the characters are present in the code page of some installed locale, use CF_TEXT and also set CF_LOCALE to that locale. Else (still on Win9x) store as RTF. We use a very simple RTF string, just the text, no fonts or other crap, with the non-ASCII characters as Unicode \uN keywords. Additionally, also store the UTF-8 string as such, under the format "UTF8_STRING", so that GDK can also paste from the Clipboard what it has copied there. (Thus no need to implement any RTF parser.) (find_common_locale): New function, implements the search for a locale for case 3 above. * gdk/win32/gdkglobals-win32.c: New global variables compound_text, text_uri_list, utf8_string, cf_rtf and cf_utf8_string. * gdk/win32/gdkim-win32.c (_gdk_ucs2_to_utf8): New function, converts from a wchar_t string to UTF-8. (_gdk_utf8_to_ucs2): Rename from _gdk_win32_nmbstowchar_ts. (_gdk_utf8_to_wcs): Rename from gdk_nmbstowchar_ts. * gdk/win32/gdkevents-win32.c (build_keypress_event): Use _gdk_ucs2_to_utf8(). * gdk/win32/gdkselection-win32.c: Remove some unnecessary logging. * gdk/win32/gdkdnd-win32.c: Plug memory leaks, the gdk_drag_context_ref() was called unnecessarily in a couple of places, meaning drag contexts were never freed. The same memory leaks seem to be present in gdk/linux-fb/gdkselection-fb.c, BTW. (gdk_drop_reply): For WIN32_DROPFILES drops, free the temporarily stored file list. * gdk/win32/gdkselection-win32.c: Clarify the use of the sel_prop_table. Now it is used only for storing the GDK_SELECTION "properties". The file names dropped with WM_DROPFILES -style DND is stored temporarily (between the drop and the target picking them up) in a separate place. Have a separate hash table to map selection atoms to owner windows. This used to be quite mixed up. (_gdk_dropfiles_store): New function, to store the dropped file list for the drop target to possibly fetch, and clear it afterwards, from gdk_drop_reply(). (gdk_selection_owner_get): Much simplified now.
2002-01-10 00:53:39 +00:00
Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the 2009-03-11 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c: Use G_DEFINE_TYPE. Some debugging printout changes. Hacking on the OLE2_DND code, which still doesn't work, though, and is not normally compiled. svn path=/trunk/; revision=22517
2009-03-11 13:37:26 +00:00
GDK_NOTE (DND, g_print ("gdk_window_register_dnd: %p\n", GDK_WINDOW_HWND (window)));
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
if (!use_ole2_dnd)
{
/* We always claim to accept dropped files, but in fact we might not,
* of course. This function is called in such a way that it cannot know
* whether the window (widget) in question actually accepts files
* (in gtk, data of type text/uri-list) or not.
*/
gdk_window_add_filter (window, gdk_dropfiles_filter, NULL);
DragAcceptFiles (GDK_WINDOW_HWND (window), TRUE);
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
else
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
/* Return if window is already setup for DND. */
if (g_hash_table_lookup (target_ctx_for_window, GDK_WINDOW_HWND (window)) != NULL)
return;
ctx = target_context_new (window);
hr = CoLockObjectExternal ((IUnknown *) &ctx->idt, TRUE, FALSE);
if (!SUCCEEDED (hr))
OTHER_API_FAILED ("CoLockObjectExternal");
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
else
{
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
hr = RegisterDragDrop (GDK_WINDOW_HWND (window), &ctx->idt);
if (hr == DRAGDROP_E_ALREADYREGISTERED)
{
g_print ("DRAGDROP_E_ALREADYREGISTERED\n");
CoLockObjectExternal ((IUnknown *) &ctx->idt, FALSE, FALSE);
}
else if (!SUCCEEDED (hr))
OTHER_API_FAILED ("RegisterDragDrop");
else
{
Remove some deprecated stuff from GdkWindow Also, substitute the deprecated functions with the correct ones
2010-05-12 02:25:46 +00:00
g_object_ref (window);
Make the OLE2 DND code selectable at run-time instead of compile-time (It still doesn't work, though.)
2009-12-16 23:50:47 +00:00
g_hash_table_insert (target_ctx_for_window, GDK_WINDOW_HWND (window), ctx);
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
}
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static gboolean
gdk_win32_drag_context_drop_status (GdkDragContext *context)
{
win32: get rid of GdkDragContextPrivateWin32 and related machinery. This turns GdkWin32DragContext into a proper GdkDragContext subclass. Because we now correctly initialize GdkWin32DragContext in gdk_drag_context_new, we no longer crash immediatly when a DnD operation is initialized (the find_window, drag_status, ... vfuncs where all pointing to 0x0 instead of their proper win32 implementations). We now try to consistently refer to GdkDragContext as "context", GdkWin32DragContext as "win32_context" and the ole2 related target_drag_context and source_drag_context as "ctx". Members of GdkWin32DragContext only used by the ole2 DnD codepaths are now explicitly marked with a ole2_dnd_ prefix.
2011-09-22 20:47:23 +00:00
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
return ! context_win32->drop_failed;
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
}
static GdkAtom
gdk_win32_drag_context_get_selection (GdkDragContext *context)
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
{
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
switch (context->protocol)
{
case GDK_DRAG_PROTO_LOCAL:
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
return _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_LOCAL_DND_SELECTION);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
case GDK_DRAG_PROTO_WIN32_DROPFILES:
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
return _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_DROPFILES_DND);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
case GDK_DRAG_PROTO_OLE2:
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
return _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND);
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
default:
gdk: Replace GDK_NONE with NULL
2017-11-15 17:13:31 +00:00
return NULL;
Work on OLE2-based generic DND Intermediate commit of work in progress on integrating the old code for OLE2-based generic drag and drop from Arhaeopteryx Software, from a long time ago in the GTK+ 1.3 timeframe. Does still not work and is as before not compiled in unless OLE2_DND is defined in gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES style dropping of files on GTK+ apps works.) Related slight refactoring of other code that shouldn't change how it works. Add more global variables for run-time constants (once initialized) representing well-known GdkAtoms and registered Windows clipboard formats, as they with the generic DND code will be needed in several source files. Some improved debugging output.
2009-12-16 11:04:29 +00:00
}
re-adding for manual rename of repository files.
1999-11-11 22:12:27 +00:00
}
Add drop_failed, like in the X11 backend. Nothing sets it, though. 2004-08-27 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (GdkDragContextPrivateWin32): Add drop_failed, like in the X11 backend. Nothing sets it, though. (gdk_drag_drop_succeeded): Copy from X11 backend.
2004-08-27 23:38:06 +00:00
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
static void
gdk_win32_drag_context_set_cursor (GdkDragContext *context,
GdkCursor *cursor)
{
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
GDK_NOTE (DND, g_print ("gdk_drag_context_set_cursor: 0x%p 0x%p\n", context, cursor));
if (!g_set_object (&context_win32->cursor, cursor))
return;
if (context_win32->grab_seat)
{
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
gdk_device_grab (gdk_seat_get_pointer (context_win32->grab_seat),
context_win32->ipc_window,
GDK_OWNERSHIP_APPLICATION, FALSE,
GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
cursor, GDK_CURRENT_TIME);
G_GNUC_END_IGNORE_DEPRECATIONS;
}
}
static double
ease_out_cubic (double t)
{
double p = t - 1;
return p * p * p + 1;
}
#define ANIM_TIME 500000 /* half a second */
typedef struct _GdkDragAnim GdkDragAnim;
struct _GdkDragAnim {
GdkWin32DragContext *context;
GdkFrameClock *frame_clock;
gint64 start_time;
};
static void
gdk_drag_anim_destroy (GdkDragAnim *anim)
{
g_object_unref (anim->context);
g_slice_free (GdkDragAnim, anim);
}
static gboolean
gdk_drag_anim_timeout (gpointer data)
{
GdkDragAnim *anim = data;
GdkWin32DragContext *context = anim->context;
GdkFrameClock *frame_clock = anim->frame_clock;
gint64 current_time;
double f;
double t;
if (!frame_clock)
return G_SOURCE_REMOVE;
current_time = gdk_frame_clock_get_frame_time (frame_clock);
f = (current_time - anim->start_time) / (double) ANIM_TIME;
if (f >= 1.0)
return G_SOURCE_REMOVE;
t = ease_out_cubic (f);
gdk_window_show (context->drag_window);
gdk_window_move (context->drag_window,
context->last_x + (context->start_x - context->last_x) * t - context->hot_x,
Fix a nefarious typo
2017-11-25 17:04:48 +00:00
context->last_y + (context->start_y - context->last_y) * t - context->hot_y);
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
gdk_window_set_opacity (context->drag_window, 1.0 - f);
return G_SOURCE_CONTINUE;
}
static void
gdk_win32_drag_context_drop_done (GdkDragContext *context,
gboolean success)
{
GdkWin32DragContext *win32_context = GDK_WIN32_DRAG_CONTEXT (context);
GdkDragAnim *anim;
cairo_surface_t *win_surface;
cairo_surface_t *surface;
cairo_t *cr;
guint id;
GDK_NOTE (DND, g_print ("gdk_drag_context_drop_done: 0x%p %s\n",
context,
success ? "dropped successfully" : "dropped unsuccessfully"));
/* FIXME: This is temporary, until the code is fixed to ensure that
* gdk_drop_finish () is called by GTK.
*/
if (use_ole2_dnd)
{
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
if (success)
sel_win32->dnd_source_state = GDK_WIN32_DND_DROPPED;
else
sel_win32->dnd_source_state = GDK_WIN32_DND_NONE;
}
if (success)
{
gdk_window_hide (win32_context->drag_window);
return;
}
win_surface = _gdk_window_ref_cairo_surface (win32_context->drag_window);
surface = gdk_window_create_similar_surface (win32_context->drag_window,
cairo_surface_get_content (win_surface),
gdk_window_get_width (win32_context->drag_window),
gdk_window_get_height (win32_context->drag_window));
cr = cairo_create (surface);
cairo_set_source_surface (cr, win_surface, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_destroy (win_surface);
/*
pattern = cairo_pattern_create_for_surface (surface);
gdk_window_set_background_pattern (win32_context->drag_window, pattern);
cairo_pattern_destroy (pattern);
*/
cairo_surface_destroy (surface);
anim = g_slice_new0 (GdkDragAnim);
g_set_object (&anim->context, win32_context);
anim->frame_clock = gdk_window_get_frame_clock (win32_context->drag_window);
anim->start_time = gdk_frame_clock_get_frame_time (anim->frame_clock);
id = gdk_threads_add_timeout_full (G_PRIORITY_DEFAULT, 17,
gdk_drag_anim_timeout, anim,
(GDestroyNotify) gdk_drag_anim_destroy);
g_source_set_name_by_id (id, "[gtk+] gdk_drag_anim_timeout");
}
static gboolean
drag_context_grab (GdkDragContext *context)
{
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
GdkSeatCapabilities capabilities;
GdkSeat *seat;
GdkCursor *cursor;
if (!context_win32->ipc_window)
return FALSE;
seat = gdk_device_get_seat (gdk_drag_context_get_device (context));
capabilities = GDK_SEAT_CAPABILITY_ALL;
cursor = gdk_drag_get_cursor (context, gdk_drag_context_get_selected_action (context));
g_set_object (&context_win32->cursor, cursor);
if (gdk_seat_grab (seat, context_win32->ipc_window,
capabilities, FALSE,
context_win32->cursor, NULL, NULL, NULL) != GDK_GRAB_SUCCESS)
return FALSE;
g_set_object (&context_win32->grab_seat, seat);
/* TODO: Should be grabbing keys here, to support keynav. SetWindowsHookEx()? */
return TRUE;
}
static void
drag_context_ungrab (GdkDragContext *context)
{
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
if (!context_win32->grab_seat)
return;
gdk_seat_ungrab (context_win32->grab_seat);
g_clear_object (&context_win32->grab_seat);
/* TODO: Should be ungrabbing keys here */
}
static gboolean
gdk_win32_drag_context_manage_dnd (GdkDragContext *context,
GdkWindow *ipc_window,
GdkDragAction actions)
{
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
if (context_win32->ipc_window)
return FALSE;
if (use_ole2_dnd)
context->protocol = GDK_DRAG_PROTO_OLE2;
else
context->protocol = GDK_DRAG_PROTO_LOCAL;
g_set_object (&context_win32->ipc_window, ipc_window);
if (drag_context_grab (context))
{
context_win32->actions = actions;
move_drag_window (context, context_win32->start_x, context_win32->start_y);
return TRUE;
}
else
{
g_clear_object (&context_win32->ipc_window);
return FALSE;
}
}
static void
gdk_win32_drag_context_cancel (GdkDragContext *context,
GdkDragCancelReason reason)
{
const gchar *reason_str = NULL;
switch (reason)
{
case GDK_DRAG_CANCEL_NO_TARGET:
reason_str = "no target";
break;
case GDK_DRAG_CANCEL_USER_CANCELLED:
reason_str = "user cancelled";
break;
case GDK_DRAG_CANCEL_ERROR:
reason_str = "error";
break;
default:
reason_str = "<unknown>";
break;
}
GDK_NOTE (DND, g_print ("gdk_drag_context_cancel: 0x%p %s\n",
context,
reason_str));
drag_context_ungrab (context);
gdk_drag_drop_done (context, FALSE);
}
static void
gdk_win32_drag_context_drop_performed (GdkDragContext *context,
guint32 time_)
{
GDK_NOTE (DND, g_print ("gdk_drag_context_drop_performed: 0x%p %u\n",
context,
time_));
gdk_drag_drop (context, time_);
drag_context_ungrab (context);
}
#define BIG_STEP 20
#define SMALL_STEP 1
static void
gdk_drag_get_current_actions (GdkModifierType state,
gint button,
GdkDragAction actions,
GdkDragAction *suggested_action,
GdkDragAction *possible_actions)
{
*suggested_action = 0;
*possible_actions = 0;
if ((button == GDK_BUTTON_MIDDLE || button == GDK_BUTTON_SECONDARY) && (actions & GDK_ACTION_ASK))
{
*suggested_action = GDK_ACTION_ASK;
*possible_actions = actions;
}
else if (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))
{
if ((state & GDK_SHIFT_MASK) && (state & GDK_CONTROL_MASK))
{
if (actions & GDK_ACTION_LINK)
{
*suggested_action = GDK_ACTION_LINK;
*possible_actions = GDK_ACTION_LINK;
}
}
else if (state & GDK_CONTROL_MASK)
{
if (actions & GDK_ACTION_COPY)
{
*suggested_action = GDK_ACTION_COPY;
*possible_actions = GDK_ACTION_COPY;
}
}
else
{
if (actions & GDK_ACTION_MOVE)
{
*suggested_action = GDK_ACTION_MOVE;
*possible_actions = GDK_ACTION_MOVE;
}
}
}
else
{
*possible_actions = actions;
if ((state & (GDK_MOD1_MASK)) && (actions & GDK_ACTION_ASK))
*suggested_action = GDK_ACTION_ASK;
else if (actions & GDK_ACTION_COPY)
*suggested_action = GDK_ACTION_COPY;
else if (actions & GDK_ACTION_MOVE)
*suggested_action = GDK_ACTION_MOVE;
else if (actions & GDK_ACTION_LINK)
*suggested_action = GDK_ACTION_LINK;
}
}
static void
gdk_drag_update (GdkDragContext *context,
gdouble x_root,
gdouble y_root,
GdkModifierType mods,
guint32 evtime)
{
GdkWin32DragContext *win32_context = GDK_WIN32_DRAG_CONTEXT (context);
GdkDragAction action, possible_actions;
GdkWindow *dest_window;
GdkDragProtocol protocol;
gdk_drag_get_current_actions (mods, GDK_BUTTON_PRIMARY, win32_context->actions,
&action, &possible_actions);
gdk_drag_find_window (context,
win32_context->drag_window,
x_root, y_root, &dest_window, &protocol);
gdk_drag_motion (context, dest_window, protocol, x_root, y_root,
action, possible_actions, evtime);
}
static gboolean
gdk_dnd_handle_motion_event (GdkDragContext *context,
const GdkEventMotion *event)
{
GdkModifierType state;
if (!gdk_event_get_state ((GdkEvent *) event, &state))
return FALSE;
GDK_NOTE (DND, g_print ("gdk_dnd_handle_motion_event: 0x%p\n",
context));
gdk_drag_update (context, event->x_root, event->y_root, state,
gdk_event_get_time ((GdkEvent *) event));
return TRUE;
}
static gboolean
gdk_dnd_handle_key_event (GdkDragContext *context,
const GdkEventKey *event)
{
GdkWin32DragContext *win32_context = GDK_WIN32_DRAG_CONTEXT (context);
GdkModifierType state;
GdkWindow *root_window;
GdkDevice *pointer;
gint dx, dy;
GDK_NOTE (DND, g_print ("gdk_dnd_handle_key_event: 0x%p\n",
context));
dx = dy = 0;
state = event->state;
pointer = gdk_device_get_associated_device (gdk_event_get_device ((GdkEvent *) event));
if (event->type == GDK_KEY_PRESS)
{
switch (event->keyval)
{
case GDK_KEY_Escape:
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_USER_CANCELLED);
return TRUE;
case GDK_KEY_space:
case GDK_KEY_Return:
case GDK_KEY_ISO_Enter:
case GDK_KEY_KP_Enter:
case GDK_KEY_KP_Space:
if ((gdk_drag_context_get_selected_action (context) != 0) &&
(gdk_drag_context_get_dest_window (context) != NULL))
{
g_signal_emit_by_name (context, "drop-performed",
gdk_event_get_time ((GdkEvent *) event));
}
else
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_NO_TARGET);
return TRUE;
case GDK_KEY_Up:
case GDK_KEY_KP_Up:
dy = (state & GDK_MOD1_MASK) ? -BIG_STEP : -SMALL_STEP;
break;
case GDK_KEY_Down:
case GDK_KEY_KP_Down:
dy = (state & GDK_MOD1_MASK) ? BIG_STEP : SMALL_STEP;
break;
case GDK_KEY_Left:
case GDK_KEY_KP_Left:
dx = (state & GDK_MOD1_MASK) ? -BIG_STEP : -SMALL_STEP;
break;
case GDK_KEY_Right:
case GDK_KEY_KP_Right:
dx = (state & GDK_MOD1_MASK) ? BIG_STEP : SMALL_STEP;
break;
}
}
/* The state is not yet updated in the event, so we need
* to query it here.
*/
_gdk_device_query_state (pointer, NULL, NULL, NULL, NULL, NULL, NULL, &state);
if (dx != 0 || dy != 0)
{
win32_context->last_x += dx;
win32_context->last_y += dy;
gdk_device_warp (pointer, win32_context->last_x, win32_context->last_y);
}
gdk_drag_update (context, win32_context->last_x, win32_context->last_y, state,
gdk_event_get_time ((GdkEvent *) event));
return TRUE;
}
static gboolean
gdk_dnd_handle_grab_broken_event (GdkDragContext *context,
const GdkEventGrabBroken *event)
{
GdkWin32DragContext *win32_context = GDK_WIN32_DRAG_CONTEXT (context);
GDK_NOTE (DND, g_print ("gdk_dnd_handle_grab_broken_event: 0x%p\n",
context));
/* Don't cancel if we break the implicit grab from the initial button_press.
* Also, don't cancel if we re-grab on the widget or on our IPC window, for
* example, when changing the drag cursor.
*/
if (event->implicit ||
event->grab_window == win32_context->drag_window ||
event->grab_window == win32_context->ipc_window)
return FALSE;
if (gdk_event_get_device ((GdkEvent *) event) !=
gdk_drag_context_get_device (context))
return FALSE;
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_ERROR);
return TRUE;
}
static gboolean
gdk_dnd_handle_button_event (GdkDragContext *context,
const GdkEventButton *event)
{
GDK_NOTE (DND, g_print ("gdk_dnd_handle_button_event: 0x%p\n",
context));
#if 0
/* FIXME: Check the button matches */
if (event->button != win32_context->button)
return FALSE;
#endif
if ((gdk_drag_context_get_selected_action (context) != 0) &&
(gdk_drag_context_get_dest_window (context) != NULL))
{
g_signal_emit_by_name (context, "drop-performed",
gdk_event_get_time ((GdkEvent *) event));
}
else
gdk_drag_context_cancel (context, GDK_DRAG_CANCEL_NO_TARGET);
return TRUE;
}
gboolean
gdk_dnd_handle_drag_status (GdkDragContext *context,
const GdkEventDND *event)
{
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
GdkDragAction action;
GDK_NOTE (DND, g_print ("gdk_dnd_handle_drag_status: 0x%p\n",
context));
if (context != event->context)
return FALSE;
action = gdk_drag_context_get_selected_action (context);
if (action != context_win32->current_action)
{
context_win32->current_action = action;
g_signal_emit_by_name (context, "action-changed", action);
}
return TRUE;
}
static gboolean
gdk_dnd_handle_drop_finished (GdkDragContext *context,
const GdkEventDND *event)
{
GdkWin32DragContext *win32_context = GDK_WIN32_DRAG_CONTEXT (context);
GDK_NOTE (DND, g_print ("gdk_dnd_handle_drop_finihsed: 0x%p\n",
context));
if (context != event->context)
return FALSE;
g_signal_emit_by_name (context, "dnd-finished");
gdk_drag_drop_done (context, !win32_context->drop_failed);
gdk_win32_selection_clear_targets (gdk_display_get_default (),
gdk_win32_drag_context_get_selection (context));
return TRUE;
}
gboolean
gdk_win32_drag_context_handle_event (GdkDragContext *context,
const GdkEvent *event)
{
GdkWin32DragContext *win32_context = GDK_WIN32_DRAG_CONTEXT (context);
if (!context->is_source)
return FALSE;
if (!win32_context->grab_seat && event->type != GDK_DROP_FINISHED)
return FALSE;
switch (event->type)
{
case GDK_MOTION_NOTIFY:
return gdk_dnd_handle_motion_event (context, &event->motion);
case GDK_BUTTON_RELEASE:
return gdk_dnd_handle_button_event (context, &event->button);
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
return gdk_dnd_handle_key_event (context, &event->key);
case GDK_GRAB_BROKEN:
return gdk_dnd_handle_grab_broken_event (context, &event->grab_broken);
case GDK_DRAG_STATUS:
return gdk_dnd_handle_drag_status (context, &event->dnd);
case GDK_DROP_FINISHED:
return gdk_dnd_handle_drop_finished (context, &event->dnd);
default:
break;
}
return FALSE;
}
void
gdk_win32_drag_context_action_changed (GdkDragContext *context,
GdkDragAction action)
{
GdkCursor *cursor;
cursor = gdk_drag_get_cursor (context, action);
gdk_drag_context_set_cursor (context, cursor);
}
static GdkWindow *
gdk_win32_drag_context_get_drag_window (GdkDragContext *context)
{
return GDK_WIN32_DRAG_CONTEXT (context)->drag_window;
}
static void
gdk_win32_drag_context_set_hotspot (GdkDragContext *context,
gint hot_x,
gint hot_y)
{
GdkWin32DragContext *win32_context = GDK_WIN32_DRAG_CONTEXT (context);
GDK_NOTE (DND, g_print ("gdk_drag_context_set_hotspot: 0x%p %d:%d\n",
context,
hot_x, hot_y));
win32_context->hot_x = hot_x;
win32_context->hot_y = hot_y;
if (win32_context->grab_seat)
{
/* DnD is managed, update current position */
move_drag_window (context, win32_context->last_x, win32_context->last_y);
}
}
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
static void
gdk_win32_drag_context_class_init (GdkWin32DragContextClass *klass)
Add drop_failed, like in the X11 backend. Nothing sets it, though. 2004-08-27 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (GdkDragContextPrivateWin32): Add drop_failed, like in the X11 backend. Nothing sets it, though. (gdk_drag_drop_succeeded): Copy from X11 backend.
2004-08-27 23:38:06 +00:00
{
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
Add drop_failed, like in the X11 backend. Nothing sets it, though. 2004-08-27 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (GdkDragContextPrivateWin32): Add drop_failed, like in the X11 backend. Nothing sets it, though. (gdk_drag_drop_succeeded): Copy from X11 backend.
2004-08-27 23:38:06 +00:00
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
object_class->finalize = gdk_win32_drag_context_finalize;
Add drop_failed, like in the X11 backend. Nothing sets it, though. 2004-08-27 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (GdkDragContextPrivateWin32): Add drop_failed, like in the X11 backend. Nothing sets it, though. (gdk_drag_drop_succeeded): Copy from X11 backend.
2004-08-27 23:38:06 +00:00
win32: gdk3 resurrection There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
2011-01-02 10:51:25 +00:00
context_class->find_window = gdk_win32_drag_context_find_window;
context_class->drag_status = gdk_win32_drag_context_drag_status;
context_class->drag_motion = gdk_win32_drag_context_drag_motion;
context_class->drag_abort = gdk_win32_drag_context_drag_abort;
context_class->drag_drop = gdk_win32_drag_context_drag_drop;
context_class->drop_reply = gdk_win32_drag_context_drop_reply;
context_class->drop_finish = gdk_win32_drag_context_drop_finish;
context_class->drop_status = gdk_win32_drag_context_drop_status;
context_class->get_selection = gdk_win32_drag_context_get_selection;
W32: Massive W32 DnD fix Massive changes to OLE2 DnD protocol, which was completely broken before: * Keep GdkDragContext and OLE2 objects separate (don't ref/unref them together, don't necessarily create them together). * Keep IDataObject formats in the object itself, not in a global variable. * Fix getdata() to look up the request target in its format list, not in the global hash table * Create target GdkDragContext on each drag_enter, destroy it on drag_leave, whereas IDropTarget is created when a window becomes a drag destination and is re-used indefinitely. * Query the source IDataObject for its supported types, cache them in the target (!) context. This is how GTK+ works, honestly. * Remember current_src_object when we initiate a drag, to be able to detect later on that the data object is ours and use a shortcut when querying targets * Make sure GDK_DRAG_MOTION is only sent when something changes * Support GTK drag cursors * Ensure that exotic GTK clipboard formats are registered (but try to avoid registering formats that can't be used between applications). * Don't enumerate internal formats * Ensure that DnD indicator window can't accept drags or receive any kind of input (use WS_EX_TRANSPARENT). * Remove unneeded indentation in _gdk_win32_dnd_do_dragdrop() * Fix indentation in gdk_win32_drag_context_drop_finish() * Remove obsolete comments in _gdk_win32_window_register_dnd() * Check for DnD in progress when processing WM_KILLFOCUS, don't emit a grab break event in such cases (this allows alt-tabbing while DnD is in progress, though there may be lingering issues with focus after dropping...) * Support Shell ID List -> text/uri-list conversion, now it's possible to drop files (dragged from Explorer) on GTK+ applications * Explicitly use RegisterClipboardFormatA() when we know that the string is not in unicode. Otherwise explicitly use RegisterClipboardFormatW() with a UTF8->UTF16 converted string * Fix _gdk_win32_display_get_selection_owner() to correctly bail when selection owner HWND is NULL (looking up GdkWindow for NULL HWND always succeeds and returns the root window - not the intended effect) * More logging * Send DROP_FINISHED event after DnD loop ends * Send STATUS event on feedback * Move GetKeyboardState() and related code into _gdk_win32_window_drag_begin(), so that it's closer to the point where last_pt and start_pt are set * Use & 0x80 to check for the key being pressed. Windows will set low-order bit to 1 for all mouse buttons to indicate that they are toggled, so simply checking for the value not being 0 is not enough anymore. This is probably a new thing in modern W32 that didn't exist before (OLE2 DnD code is old). * Fixed (hopefully) and simplified HiDPI parts of the code. Also adds managed DnD implementation for W32 GDK backend (for both OLE2 and LOCAL protocols). Mostly a copy of the X11 backend code, but there are some minor differences: * doesn't use drag_window field in GdkDragContext, uses the one in GdkWin32DragContext exclusively * subtracts hotspot offset from the window coordinates when showing the dragback animation * tries to consistently support scaling and caches the scale in the context * Some keynav code is removed (places where grabbing/ungrabbing should happen is marked with TODOs), and the rest is probably inert. Also significantly changes the way selection (and clipboard) is handled (as MSDN rightly notes, the handling for DnD and Clipboard formats is virtually the same, so it makes sense to handle both with the same code): * Don't spam GDK_OWNER_CHANGE, send them only when owner actually changes * Open clipboard when our process becomes the clipboard owner (we are doing it anyway, to empty the clipboard and *become* the owner), and then don't close it until a scheduled selection request event (with TARGETS target) is received. Process that event by announcing all of our supported formats (by that time add_targets() should have been called up the stack, thus the formats are known; just in case, add_targets() will also schedule a selection request, if one isn't scheduled already, so that late-coming formats can still be announced). * Allow clipboard opening for selection_convert() to be delayed if it fails initially. * The last two points above should fix all the bugs about GTK+ rising too much ruckus over OpenClipboard() failures, as owner change *is allowed* to fail (though not all callers currently handle that case), and selection_convert() is asynchronous to begin with. Still, this is somewhat risky, as there's a possibility that the code will work in unexpected ways and the clipboard will remain open. There's now logging to track the clipboard being opened and closed, and a number of failsafes that try to ensure that it isn't kept open for no reason. * Added copious notes on the way clipboard works on X11, Windows and GDK-W32, also removed old comments in DnD implementation, replaced some of them with the new ones * A lot of crufty module-global variables are stuffed into a singleton object, GdkWin32Selection. It's technically possible to make it a sub-object of the Display object (the way Wayland backend does), but since Display object on W32 is a singleton anyway... why bother? * Fixed the send_change_events() a bit (was slightly broken in one of the previous iterations) * Ensure that there's no confusion between selection conversion (an artifact term from X11) and selection transmutation (changing the data to be W32-compatible) * Put all the transmutation code and format-target-matching code into gdkselection-win32.c, now this code isn't spread across multiple files. * Consequently, moved some code away from gdkproperty-win32.c and gdkdnd-win32.c * Extensive format transmutation checks for OLE2 DnD and clipboard. We now keep track of which format mappings are for transmutations, and which aren't (for example, when formats are passed as-is, or when a registered name is just an alias) * Put transmutation code into separate functions * Ensure that drop target keeps a format->target map for supported formats, this is useful when selection_convert() is called, as it only receives a single target and no hints on the format from which the data should be transmuted into this target. * Add clear_targets() on W32, to de called by GTK * Use g_set_object() instead of g_ref_object() where it is allowed. * Fix indentation (and convert tabs to spaces), remove unused variables (This commit is cherry-picked from the gtk-3-22 branch) https://bugzilla.gnome.org/show_bug.cgi?id=786509
2017-08-19 12:06:27 +00:00
context_class->get_drag_window = gdk_win32_drag_context_get_drag_window;
context_class->set_hotspot = gdk_win32_drag_context_set_hotspot;
context_class->drop_done = gdk_win32_drag_context_drop_done;
context_class->manage_dnd = gdk_win32_drag_context_manage_dnd;
context_class->set_cursor = gdk_win32_drag_context_set_cursor;
context_class->cancel = gdk_win32_drag_context_cancel;
context_class->drop_performed = gdk_win32_drag_context_drop_performed;
context_class->handle_event = gdk_win32_drag_context_handle_event;
context_class->action_changed = gdk_win32_drag_context_action_changed;
Add drop_failed, like in the X11 backend. Nothing sets it, though. 2004-08-27 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkdnd-win32.c (GdkDragContextPrivateWin32): Add drop_failed, like in the X11 backend. Nothing sets it, though. (gdk_drag_drop_succeeded): Copy from X11 backend.
2004-08-27 23:38:06 +00:00
}
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