forked from AuroraMiddleware/gtk
3339 lines
96 KiB
C
3339 lines
96 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
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* Copyright (C) 2001 Archaeopteryx Software Inc.
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* Copyright (C) 1998-2002 Tor Lillqvist
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include <string.h>
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#include <io.h>
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#include <fcntl.h>
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/*
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* Support for OLE-2 drag and drop added at Archaeopteryx Software, 2001
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* For more information, contact Stephan R.A. Deibel (sdeibel@archaeopteryx.com)
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*
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* Notes on the implementation:
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*
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* Source drag context, IDragSource and IDataObject for it are created
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* (almost) simultaneously, whereas target drag context and IDropTarget
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* are separated in time - IDropTarget is created when a window is made
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* to accept drops, while target drag context is created when a dragging
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* cursor enters the window and is destroyed when that cursor leaves
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* the window.
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*
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* There's a mismatch between data types supported by W32 (W32 formats)
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* and by GTK+ (GDK targets).
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* To account for it the data is transmuted back and forth. There are two
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* main points of transmutation:
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* * GDK convert selection: transmute W32 data to GTK+ data
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* * GDK window property change: transmute GTK+ data to W32 data
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*
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* There are also two points where data formats are considered:
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* * When source drag context is created, it gets a list of GTK+ targets
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* that it supports, these are matched to the W32 formats they
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* correspond to (possibly with transmutation). New W32 formats for
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* GTK+-specific formats are also created here (see below).
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* * When target drag context is created, it queries the IDataObject
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* for the list of W32 formats it supports and matches these to
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* corresponding GTK+ formats that it will be able to provide
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* (possibly with transmutation) later. Missing GDK targets for
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* W32-specific formats are also created here (see below).
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*
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* W32 formats and GTK+ targets are both integers (CLIPFORMAT and GdkAtom
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* respectively), but cannot be used interchangeably.
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*
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* To accommodate advanced GTK+ applications the code allows them to
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* register drop targets that accept W32 data formats, and to register
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* drag sources that provide W32 data formats. To do that they must
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* register either with the string name of the format in question
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* (for example, "Shell IDList Array") or, for unnamed pre-defined
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* formats, register with the stringified constant name of the format
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* in question (for example, "CF_UNICODETEXT").
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* If such target format is accepted/provided, GDK will not try to
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* transmute it to/from something else. Otherwise GDK will do the following
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* transmutation:
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* * If GTK+ application provides image/png, image/gif or image/jpeg,
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* GDK will claim to also provide "PNG", "GIF" or "JFIF" respectively,
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* and will pass these along verbatim.
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* * If GTK+ application provides any GdkPixbuf-compatible target,
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* GDK will also offer "PNG" and CF_DIB W32 formats.
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* * If GTK+ application provides UTF8_STRING, GDK will also offer
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* CF_UNICODETEXT (UTF-16-encoded) and CF_TEXT (encoded with thread-
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* and locale-depenant codepage), and will do the conversion when such
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* data is requested.
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* * If GTK+ application accepts image/png, image/gif or image/jpeg,
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* GDK will claim to also accept "PNG", "GIF" or "JFIF" respectively,
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* and will pass these along verbatim.
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* * If GTK+ application accepts image/bmp, GDK will
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* claim to accept CF_DIB W32 format, and will convert
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* it, changing the header, when such data is provided.
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* * If GTK+ application accepts UTF8_STRING, GDK will
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* claim to accept CF_UNICODETEXT and CF_TEXT, and will do
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* the conversion when such data is provided.
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* * If GTK+ application accepts text/uri-list, GDK will
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* claim to accept "Shell IDList Array", and will do the
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* conversion when such data is provided.
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*
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* Currently the conversion from text/uri-list to Shell IDList Array is not
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* implemented, so it's not possible to drag & drop files from GTK+
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* applications to non-GTK+ applications the same way one can drag files
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* from Windows Explorer.
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*
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* To accommodate GTK+ application compaibility the code allows
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* GTK+ applications to register drop targets that accept GTK+-specific
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* data formats, and to register drag sources that provide GTK+-specific
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* data formats. This is done by simply registering target atom names
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* as clipboard formats. This way two GTK+ applications can exchange
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* data in their native formats (both well-known ones, such as UTF8_STRING,
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* and special, known only to specific applications). This will work just
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* fine as long as both applications agree on what kind of data is stored
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* under such format exactly.
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*
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* Note that clipboard format space is limited, there can only be 16384
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* of them for a particular user session. Therefore it is highly inadvisable
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* to create and register such formats out of the whole cloth, dynamically.
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* If more flexibility is needed, register one format that has some
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* internal indicators of the kind of data it contains, then write the application
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* in such a way that it requests the data and inspects its header before deciding
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* whether to accept it or not. For details see GTK+ drag & drop documentation
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* on the "drag-motion" and "drag-data-received" signals.
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*/
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/* The mingw.org compiler does not export GUIDS in it's import library. To work
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* around that, define INITGUID to have the GUIDS declared. */
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#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
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#define INITGUID
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#endif
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/* For C-style COM wrapper macros */
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#define COBJMACROS
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#include "gdkdnd.h"
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#include "gdkproperty.h"
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#include "gdkinternals.h"
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#include "gdkprivate-win32.h"
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#include "gdkwin32.h"
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#include "gdkwin32dnd.h"
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#include "gdkdisplayprivate.h"
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#include "gdk/gdkdndprivate.h"
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#include "gdkwin32dnd-private.h"
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#include "gdkdisplay-win32.h"
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#include "gdkselection-win32.h"
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#include <ole2.h>
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#include <shlobj.h>
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#include <shlguid.h>
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#include <objidl.h>
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#include <gdk/gdk.h>
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#include <glib/gstdio.h>
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/* from gdkselection-win32.c */
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extern GdkAtom *known_pixbuf_formats;
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extern int n_known_pixbuf_formats;
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typedef enum {
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GDK_DRAG_STATUS_DRAG,
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GDK_DRAG_STATUS_MOTION_WAIT,
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GDK_DRAG_STATUS_ACTION_WAIT,
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GDK_DRAG_STATUS_DROP
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} GdkDragStatus;
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static GList *contexts;
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static GdkDragContext *current_dest_drag = NULL;
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static gboolean use_ole2_dnd = FALSE;
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G_DEFINE_TYPE (GdkWin32DragContext, gdk_win32_drag_context, GDK_TYPE_DRAG_CONTEXT)
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static void
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move_drag_window (GdkDragContext *context,
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guint x_root,
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guint y_root)
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{
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GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
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gdk_window_move (context_win32->drag_window,
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x_root - context_win32->hot_x,
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y_root - context_win32->hot_y);
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gdk_window_raise (context_win32->drag_window);
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}
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static void
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gdk_win32_drag_context_init (GdkWin32DragContext *context)
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{
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if (!use_ole2_dnd)
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{
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contexts = g_list_prepend (contexts, context);
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}
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else
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{
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}
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GDK_NOTE (DND, g_print ("gdk_drag_context_init %p\n", context));
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}
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static void
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gdk_win32_drag_context_finalize (GObject *object)
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{
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GdkDragContext *context;
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GdkWin32DragContext *context_win32;
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GdkWindow *drag_window;
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GDK_NOTE (DND, g_print ("gdk_drag_context_finalize %p\n", object));
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g_return_if_fail (GDK_IS_WIN32_DRAG_CONTEXT (object));
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context = GDK_DRAG_CONTEXT (object);
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context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
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if (!use_ole2_dnd)
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{
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contexts = g_list_remove (contexts, context);
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if (context == current_dest_drag)
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current_dest_drag = NULL;
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}
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drag_window = context_win32->drag_window;
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g_array_unref (context_win32->droptarget_format_target_map);
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G_OBJECT_CLASS (gdk_win32_drag_context_parent_class)->finalize (object);
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if (drag_window)
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gdk_window_destroy (drag_window);
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}
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/* Drag Contexts */
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static GdkDragContext *
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gdk_drag_context_new (GdkDisplay *display)
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{
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GdkWin32DragContext *context_win32;
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GdkWin32Display *win32_display = GDK_WIN32_DISPLAY (display);
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GdkDragContext *context;
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context_win32 = g_object_new (GDK_TYPE_WIN32_DRAG_CONTEXT, NULL);
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context = GDK_DRAG_CONTEXT(context_win32);
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context->display = display;
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gdk_drag_context_set_device (context, gdk_seat_get_pointer (gdk_display_get_default_seat (display)));
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if (win32_display->has_fixed_scale)
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context_win32->scale = win32_display->window_scale;
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else
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context_win32->scale = _gdk_win32_display_get_monitor_scale_factor (win32_display, NULL, NULL, NULL);
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context_win32->droptarget_format_target_map = g_array_new (FALSE, FALSE, sizeof (GdkSelTargetFormat));
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return context;
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}
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static GdkDragContext *
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gdk_drag_context_find (gboolean is_source,
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GdkWindow *source,
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GdkWindow *dest)
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{
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GList *tmp_list = contexts;
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GdkDragContext *context;
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while (tmp_list)
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{
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context = (GdkDragContext *)tmp_list->data;
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if ((!context->is_source == !is_source) &&
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((source == NULL) || (context->source_window && (context->source_window == source))) &&
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((dest == NULL) || (context->dest_window && (context->dest_window == dest))))
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return context;
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tmp_list = tmp_list->next;
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}
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return NULL;
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}
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#define PRINT_GUID(guid) \
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g_print ("%.08lx-%.04x-%.04x-%.02x%.02x-%.02x%.02x%.02x%.02x%.02x%.02x", \
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((gulong *) guid)[0], \
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((gushort *) guid)[2], \
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((gushort *) guid)[3], \
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((guchar *) guid)[8], \
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((guchar *) guid)[9], \
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((guchar *) guid)[10], \
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((guchar *) guid)[11], \
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((guchar *) guid)[12], \
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((guchar *) guid)[13], \
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((guchar *) guid)[14], \
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((guchar *) guid)[15]);
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typedef struct {
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IDropTarget idt;
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GdkDragContext *context;
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gint ref_count;
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GdkWindow *dest_window;
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||
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} target_drag_context;
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typedef struct {
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IDropSource ids;
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GdkDragContext *context;
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gint ref_count;
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} source_drag_context;
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||
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typedef struct {
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IDataObject ido;
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int ref_count;
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GdkDragContext *context;
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GArray *formats;
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||
} data_object;
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||
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typedef struct {
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IEnumFORMATETC ief;
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int ref_count;
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int ix;
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data_object *dataobj;
|
||
} enum_formats;
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||
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static source_drag_context *pending_src_context = NULL;
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static source_drag_context *current_src_context = NULL;
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static data_object *current_src_object = NULL;
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||
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static enum_formats *enum_formats_new (data_object *dataobj);
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||
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/* map windows -> target drag contexts. The table
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* owns a ref to both objects.
|
||
*/
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static GHashTable* target_ctx_for_window = NULL;
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||
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static ULONG STDMETHODCALLTYPE
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idroptarget_addref (LPDROPTARGET This)
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{
|
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target_drag_context *ctx = (target_drag_context *) This;
|
||
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int ref_count = ++ctx->ref_count;
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||
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GDK_NOTE (DND, g_print ("idroptarget_addref %p %d\n", This, ref_count));
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||
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return ref_count;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idroptarget_queryinterface (LPDROPTARGET This,
|
||
REFIID riid,
|
||
LPVOID *ppvObject)
|
||
{
|
||
GDK_NOTE (DND, {
|
||
g_print ("idroptarget_queryinterface %p ", This);
|
||
PRINT_GUID (riid);
|
||
});
|
||
|
||
*ppvObject = NULL;
|
||
|
||
if (IsEqualGUID (riid, &IID_IUnknown))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
|
||
idroptarget_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else if (IsEqualGUID (riid, &IID_IDropTarget))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IDropTarget S_OK\n"));
|
||
idroptarget_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else
|
||
{
|
||
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
|
||
return E_NOINTERFACE;
|
||
}
|
||
}
|
||
|
||
static ULONG STDMETHODCALLTYPE
|
||
idroptarget_release (LPDROPTARGET This)
|
||
{
|
||
target_drag_context *ctx = (target_drag_context *) This;
|
||
|
||
int ref_count = --ctx->ref_count;
|
||
|
||
GDK_NOTE (DND, g_print ("idroptarget_release %p %d\n", This, ref_count));
|
||
|
||
if (ref_count == 0)
|
||
{
|
||
g_object_unref (ctx->context);
|
||
g_clear_object (&ctx->dest_window);
|
||
g_free (This);
|
||
}
|
||
|
||
return ref_count;
|
||
}
|
||
|
||
static GdkDragAction
|
||
get_suggested_action (DWORD grfKeyState)
|
||
{
|
||
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
|
||
/* 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;
|
||
else if (sel_win32->dnd_source_state == GDK_WIN32_DND_DRAGGING)
|
||
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
|
||
* forever so do one iteration and then do more only if there’s a
|
||
* pending GDK event.
|
||
*/
|
||
static void
|
||
process_pending_events (GdkDisplay *display)
|
||
{
|
||
g_main_context_iteration (NULL, FALSE);
|
||
while (_gdk_event_queue_find_first (display))
|
||
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;
|
||
}
|
||
}
|
||
|
||
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;
|
||
}
|
||
}
|
||
|
||
static void
|
||
dnd_event_put (GdkEventType type,
|
||
GdkDragContext *context,
|
||
gint pt_x,
|
||
gint pt_y,
|
||
gboolean to_dest_window)
|
||
{
|
||
GdkEvent *e;
|
||
|
||
e = gdk_event_new (type);
|
||
|
||
if (to_dest_window)
|
||
g_set_object (&e->dnd.window, context->dest_window);
|
||
else
|
||
g_set_object (&e->dnd.window, context->source_window);
|
||
e->dnd.send_event = FALSE;
|
||
g_set_object (&e->dnd.context, context);
|
||
e->dnd.time = GDK_CURRENT_TIME;
|
||
e->dnd.x_root = pt_x;
|
||
e->dnd.y_root = pt_y;
|
||
|
||
gdk_event_set_device (e, gdk_drag_context_get_device (context));
|
||
gdk_event_set_seat (e, gdk_device_get_seat (gdk_drag_context_get_device (context)));
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (e));
|
||
gdk_event_put (e);
|
||
gdk_event_free (e);
|
||
}
|
||
|
||
static GList *
|
||
query_targets (LPDATAOBJECT pDataObj,
|
||
GArray *format_target_map)
|
||
{
|
||
IEnumFORMATETC *pfmt = NULL;
|
||
FORMATETC fmt;
|
||
GList *result = NULL;
|
||
HRESULT hr;
|
||
|
||
if ((LPDATAOBJECT) current_src_object == pDataObj)
|
||
return g_list_copy (current_src_object->context->targets);
|
||
|
||
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);
|
||
|
||
return g_list_reverse (result);
|
||
}
|
||
|
||
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);
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idroptarget_dragenter (LPDROPTARGET This,
|
||
LPDATAOBJECT pDataObj,
|
||
DWORD grfKeyState,
|
||
POINTL pt,
|
||
LPDWORD pdwEffect)
|
||
{
|
||
target_drag_context *ctx = (target_drag_context *) This;
|
||
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);
|
||
|
||
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);
|
||
else
|
||
g_set_object (&context->source_window, gdk_get_default_root_window ());
|
||
|
||
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->targets = query_targets (pDataObj, context_win32->droptarget_format_target_map);
|
||
|
||
ctx->context->suggested_action = get_suggested_action (grfKeyState);
|
||
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;
|
||
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
|
||
*pdwEffect = drop_effect_for_action (ctx->context->action);
|
||
|
||
GDK_NOTE (DND, g_print ("idroptarget_dragenter returns with action %d and drop effect %lu\n", ctx->context->action, *pdwEffect));
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idroptarget_dragover (LPDROPTARGET This,
|
||
DWORD grfKeyState,
|
||
POINTL pt,
|
||
LPDWORD pdwEffect)
|
||
{
|
||
target_drag_context *ctx = (target_drag_context *) This;
|
||
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;
|
||
|
||
ctx->context->suggested_action = get_suggested_action (grfKeyState);
|
||
|
||
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;
|
||
}
|
||
|
||
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
|
||
|
||
*pdwEffect = drop_effect_for_action (ctx->context->action);
|
||
|
||
GDK_NOTE (DND, g_print ("idroptarget_dragover returns with action %d and effect %lu\n", ctx->context->action, *pdwEffect));
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idroptarget_dragleave (LPDROPTARGET This)
|
||
{
|
||
target_drag_context *ctx = (target_drag_context *) This;
|
||
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
|
||
|
||
GDK_NOTE (DND, g_print ("idroptarget_dragleave %p S_OK\n", This));
|
||
|
||
dnd_event_put (GDK_DRAG_LEAVE, ctx->context, 0, 0, TRUE);
|
||
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
|
||
|
||
g_clear_object (&sel_win32->target_drag_context);
|
||
g_clear_object (&ctx->context);
|
||
set_data_object (&sel_win32->dnd_data_object_target, NULL);
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idroptarget_drop (LPDROPTARGET This,
|
||
LPDATAOBJECT pDataObj,
|
||
DWORD grfKeyState,
|
||
POINTL pt,
|
||
LPDWORD pdwEffect)
|
||
{
|
||
target_drag_context *ctx = (target_drag_context *) This;
|
||
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 ();
|
||
|
||
GDK_NOTE (DND, g_print ("idroptarget_drop %p ", This));
|
||
|
||
if (pDataObj == NULL)
|
||
{
|
||
GDK_NOTE (DND, g_print ("E_POINTER\n"));
|
||
g_clear_object (&ctx->context);
|
||
return E_POINTER;
|
||
}
|
||
|
||
ctx->context->suggested_action = get_suggested_action (grfKeyState);
|
||
|
||
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)));
|
||
|
||
/* Notify OLE of copy or move */
|
||
if (sel_win32->dnd_target_state != GDK_WIN32_DND_DROPPED)
|
||
*pdwEffect = DROPEFFECT_NONE;
|
||
else
|
||
*pdwEffect = drop_effect_for_action (ctx->context->action);
|
||
|
||
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));
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static ULONG STDMETHODCALLTYPE
|
||
idropsource_addref (LPDROPSOURCE This)
|
||
{
|
||
source_drag_context *ctx = (source_drag_context *) This;
|
||
|
||
int ref_count = ++ctx->ref_count;
|
||
|
||
GDK_NOTE (DND, g_print ("idropsource_addref %p %d\n", This, ref_count));
|
||
|
||
return ref_count;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idropsource_queryinterface (LPDROPSOURCE This,
|
||
REFIID riid,
|
||
LPVOID *ppvObject)
|
||
{
|
||
GDK_NOTE (DND, {
|
||
g_print ("idropsource_queryinterface %p ", This);
|
||
PRINT_GUID (riid);
|
||
});
|
||
|
||
*ppvObject = NULL;
|
||
|
||
if (IsEqualGUID (riid, &IID_IUnknown))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
|
||
idropsource_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else if (IsEqualGUID (riid, &IID_IDropSource))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IDropSource S_OK\n"));
|
||
idropsource_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else
|
||
{
|
||
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
|
||
return E_NOINTERFACE;
|
||
}
|
||
}
|
||
|
||
static ULONG STDMETHODCALLTYPE
|
||
idropsource_release (LPDROPSOURCE This)
|
||
{
|
||
source_drag_context *ctx = (source_drag_context *) This;
|
||
|
||
int ref_count = --ctx->ref_count;
|
||
|
||
GDK_NOTE (DND, g_print ("idropsource_release %p %d\n", This, ref_count));
|
||
|
||
if (ref_count == 0)
|
||
{
|
||
g_clear_object (&ctx->context);
|
||
if (current_src_context == ctx)
|
||
current_src_context = NULL;
|
||
g_free (This);
|
||
}
|
||
|
||
return ref_count;
|
||
}
|
||
|
||
/* 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
|
||
send_change_events (GdkDragContext *context,
|
||
DWORD key_state,
|
||
gboolean esc_pressed)
|
||
{
|
||
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
||
POINT pt;
|
||
POINT pt_client;
|
||
gboolean changed = FALSE;
|
||
HWND hwnd = GDK_WINDOW_HWND (context->source_window);
|
||
LPARAM lparam;
|
||
WPARAM wparam;
|
||
gint pt_x;
|
||
gint pt_y;
|
||
|
||
if (!API_CALL (GetCursorPos, (&pt)))
|
||
return FALSE;
|
||
|
||
pt_client = pt;
|
||
|
||
if (!API_CALL (ScreenToClient, (hwnd, &pt_client)))
|
||
return FALSE;
|
||
|
||
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)
|
||
{
|
||
lparam = MAKELPARAM (pt_client.x, pt_client.y);
|
||
wparam = key_state;
|
||
if (pt_x != context_win32->last_x || pt_y != context_win32->last_y)
|
||
{
|
||
GDK_NOTE (DND, g_print ("Sending WM_MOUSEMOVE (%ld,%ld)\n", pt.x, pt.y));
|
||
SendMessage (hwnd, WM_MOUSEMOVE, wparam, lparam);
|
||
}
|
||
|
||
if ((key_state & MK_LBUTTON) != (context_win32->last_key_state & MK_LBUTTON))
|
||
{
|
||
if (key_state & MK_LBUTTON)
|
||
SendMessage (hwnd, WM_LBUTTONDOWN, wparam, lparam);
|
||
else
|
||
SendMessage (hwnd, WM_LBUTTONUP, wparam, lparam);
|
||
}
|
||
if ((key_state & MK_MBUTTON) != (context_win32->last_key_state & MK_MBUTTON))
|
||
{
|
||
if (key_state & MK_MBUTTON)
|
||
SendMessage (hwnd, WM_MBUTTONDOWN, wparam, lparam);
|
||
else
|
||
SendMessage (hwnd, WM_MBUTTONUP, wparam, lparam);
|
||
}
|
||
if ((key_state & MK_RBUTTON) != (context_win32->last_key_state & MK_RBUTTON))
|
||
{
|
||
if (key_state & MK_RBUTTON)
|
||
SendMessage (hwnd, WM_RBUTTONDOWN, wparam, lparam);
|
||
else
|
||
SendMessage (hwnd, WM_RBUTTONUP, wparam, lparam);
|
||
}
|
||
if ((key_state & MK_CONTROL) != (context_win32->last_key_state & MK_CONTROL))
|
||
{
|
||
if (key_state & MK_CONTROL)
|
||
SendMessage (hwnd, WM_KEYDOWN, VK_CONTROL, 0);
|
||
else
|
||
SendMessage (hwnd, WM_KEYUP, VK_CONTROL, 0);
|
||
}
|
||
if ((key_state & MK_SHIFT) != (context_win32->last_key_state & MK_SHIFT))
|
||
{
|
||
if (key_state & MK_SHIFT)
|
||
SendMessage (hwnd, WM_KEYDOWN, VK_SHIFT, 0);
|
||
else
|
||
SendMessage (hwnd, WM_KEYUP, VK_SHIFT, 0);
|
||
}
|
||
|
||
changed = TRUE;
|
||
context_win32->last_key_state = key_state;
|
||
context_win32->last_x = pt_x;
|
||
context_win32->last_y = pt_y;
|
||
}
|
||
|
||
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;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idropsource_querycontinuedrag (LPDROPSOURCE This,
|
||
BOOL fEscapePressed,
|
||
DWORD grfKeyState)
|
||
{
|
||
source_drag_context *ctx = (source_drag_context *) This;
|
||
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
|
||
|
||
GDK_NOTE (DND, g_print ("idropsource_querycontinuedrag %p esc=%d keystate=0x%lx ", This, fEscapePressed, grfKeyState));
|
||
|
||
if (send_change_events (ctx->context, grfKeyState, fEscapePressed))
|
||
process_pending_events (gdk_device_get_display (gdk_drag_context_get_device (ctx->context)));
|
||
|
||
if (sel_win32->dnd_source_state == GDK_WIN32_DND_DROPPED)
|
||
{
|
||
GDK_NOTE (DND, g_print ("DRAGDROP_S_DROP\n"));
|
||
return DRAGDROP_S_DROP;
|
||
}
|
||
else if (sel_win32->dnd_source_state == GDK_WIN32_DND_NONE)
|
||
{
|
||
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;
|
||
}
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idropsource_givefeedback (LPDROPSOURCE This,
|
||
DWORD dwEffect)
|
||
{
|
||
source_drag_context *ctx = (source_drag_context *) This;
|
||
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
|
||
GdkDragAction suggested_action;
|
||
GdkEvent *e;
|
||
POINT pt;
|
||
|
||
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);
|
||
|
||
ctx->context->action = suggested_action;
|
||
|
||
if (dwEffect == DROPEFFECT_NONE)
|
||
g_clear_object (&ctx->context->dest_window);
|
||
else if (ctx->context->dest_window == NULL)
|
||
ctx->context->dest_window = g_object_ref (gdk_get_default_root_window ());
|
||
|
||
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)));
|
||
|
||
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;
|
||
}
|
||
|
||
static ULONG STDMETHODCALLTYPE
|
||
idataobject_addref (LPDATAOBJECT This)
|
||
{
|
||
data_object *dobj = (data_object *) This;
|
||
int ref_count = ++dobj->ref_count;
|
||
|
||
GDK_NOTE (DND, g_print ("idataobject_addref %p %d\n", This, ref_count));
|
||
|
||
return ref_count;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_queryinterface (LPDATAOBJECT This,
|
||
REFIID riid,
|
||
LPVOID *ppvObject)
|
||
{
|
||
GDK_NOTE (DND, {
|
||
g_print ("idataobject_queryinterface %p ", This);
|
||
PRINT_GUID (riid);
|
||
});
|
||
|
||
*ppvObject = NULL;
|
||
|
||
if (IsEqualGUID (riid, &IID_IUnknown))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
|
||
idataobject_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else if (IsEqualGUID (riid, &IID_IDataObject))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IDataObject S_OK\n"));
|
||
idataobject_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else
|
||
{
|
||
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
|
||
return E_NOINTERFACE;
|
||
}
|
||
}
|
||
|
||
static ULONG STDMETHODCALLTYPE
|
||
idataobject_release (LPDATAOBJECT This)
|
||
{
|
||
data_object *dobj = (data_object *) This;
|
||
int ref_count = --dobj->ref_count;
|
||
|
||
GDK_NOTE (DND, g_print ("idataobject_release %p %d\n", This, ref_count));
|
||
|
||
if (ref_count == 0)
|
||
{
|
||
g_array_free (dobj->formats, TRUE);
|
||
g_free (This);
|
||
}
|
||
|
||
return ref_count;
|
||
}
|
||
|
||
static HRESULT
|
||
query (LPDATAOBJECT This,
|
||
LPFORMATETC pFormatEtc)
|
||
{
|
||
data_object *ctx = (data_object *) This;
|
||
gint i;
|
||
|
||
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;
|
||
|
||
for (i = 0; i < ctx->formats->len; i++)
|
||
if (pFormatEtc->cfFormat == g_array_index (ctx->formats, GdkSelTargetFormat, i).format)
|
||
return S_OK;
|
||
|
||
return DV_E_FORMATETC;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_getdata (LPDATAOBJECT This,
|
||
LPFORMATETC pFormatEtc,
|
||
LPSTGMEDIUM pMedium)
|
||
{
|
||
data_object *ctx = (data_object *) This;
|
||
GdkWin32Selection *win32_sel = _gdk_win32_selection_get ();
|
||
HRESULT hr;
|
||
GdkEvent e;
|
||
gint i;
|
||
GdkAtom target;
|
||
gint64 loopend;
|
||
|
||
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)
|
||
{
|
||
GDK_NOTE (DND, g_print ("Unsupported format, returning 0x%lx\n", hr));
|
||
return hr;
|
||
}
|
||
|
||
/* Append a GDK_SELECTION_REQUEST event and then hope the app sets the
|
||
* property associated with the _gdk_ole2_dnd atom
|
||
*/
|
||
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;
|
||
win32_sel->property_change_target_atom = frec->target;
|
||
}
|
||
}
|
||
|
||
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);
|
||
});
|
||
|
||
|
||
memset (&e, 0, sizeof (GdkEvent));
|
||
e.type = GDK_SELECTION_REQUEST;
|
||
g_set_object (&e.selection.window, ctx->context->source_window);
|
||
e.selection.send_event = FALSE; /* ??? */
|
||
/* 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);
|
||
e.selection.time = GDK_CURRENT_TIME;
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (&e));
|
||
|
||
gdk_event_put (&e);
|
||
|
||
/* Don't hold up longer than one second */
|
||
loopend = g_get_monotonic_time () + 1000000000;
|
||
|
||
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)));
|
||
|
||
if (pMedium->hGlobal == NULL) {
|
||
GDK_NOTE (DND, g_print (" E_UNEXPECTED\n"));
|
||
return E_UNEXPECTED;
|
||
}
|
||
|
||
GDK_NOTE (DND, g_print (" S_OK\n"));
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_getdatahere (LPDATAOBJECT This,
|
||
LPFORMATETC pFormatEtc,
|
||
LPSTGMEDIUM pMedium)
|
||
{
|
||
GDK_NOTE (DND, g_print ("idataobject_getdatahere %p %s E_UNEXPECTED\n",
|
||
This, _gdk_win32_cf_to_string (pFormatEtc->cfFormat)));
|
||
|
||
return E_UNEXPECTED;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_querygetdata (LPDATAOBJECT This,
|
||
LPFORMATETC pFormatEtc)
|
||
{
|
||
HRESULT hr;
|
||
|
||
hr = query (This, pFormatEtc);
|
||
|
||
#define CASE(x) case x: g_print (#x "\n"); break
|
||
GDK_NOTE (DND, {
|
||
g_print ("idataobject_querygetdata %p %s ",
|
||
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);
|
||
}
|
||
});
|
||
|
||
return hr;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_getcanonicalformatetc (LPDATAOBJECT This,
|
||
LPFORMATETC pFormatEtcIn,
|
||
LPFORMATETC pFormatEtcOut)
|
||
{
|
||
GDK_NOTE (DND, g_print ("idataobject_getcanonicalformatetc %p E_UNEXPECTED\n", This));
|
||
|
||
return E_UNEXPECTED;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_setdata (LPDATAOBJECT This,
|
||
LPFORMATETC pFormatEtc,
|
||
LPSTGMEDIUM pMedium,
|
||
BOOL fRelease)
|
||
{
|
||
GDK_NOTE (DND, g_print ("idataobject_setdata %p %s E_UNEXPECTED\n",
|
||
This, _gdk_win32_cf_to_string (pFormatEtc->cfFormat)));
|
||
|
||
return E_UNEXPECTED;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_enumformatetc (LPDATAOBJECT This,
|
||
DWORD dwDirection,
|
||
LPENUMFORMATETC *ppEnumFormatEtc)
|
||
{
|
||
GDK_NOTE (DND, g_print ("idataobject_enumformatetc %p ", This));
|
||
|
||
if (dwDirection != DATADIR_GET)
|
||
{
|
||
GDK_NOTE (DND, g_print ("E_NOTIMPL\n"));
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
*ppEnumFormatEtc = &enum_formats_new ((data_object *) This)->ief;
|
||
|
||
GDK_NOTE (DND, g_print (" %p S_OK\n", *ppEnumFormatEtc));
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_dadvise (LPDATAOBJECT This,
|
||
LPFORMATETC pFormatetc,
|
||
DWORD advf,
|
||
LPADVISESINK pAdvSink,
|
||
DWORD *pdwConnection)
|
||
{
|
||
GDK_NOTE (DND, g_print ("idataobject_dadvise %p E_NOTIMPL\n", This));
|
||
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_dunadvise (LPDATAOBJECT This,
|
||
DWORD dwConnection)
|
||
{
|
||
GDK_NOTE (DND, g_print ("idataobject_dunadvise %p E_NOTIMPL\n", This));
|
||
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
idataobject_enumdadvise (LPDATAOBJECT This,
|
||
LPENUMSTATDATA *ppenumAdvise)
|
||
{
|
||
GDK_NOTE (DND, g_print ("idataobject_enumdadvise %p OLE_E_ADVISENOTSUPPORTED\n", This));
|
||
|
||
return OLE_E_ADVISENOTSUPPORTED;
|
||
}
|
||
|
||
static ULONG STDMETHODCALLTYPE
|
||
ienumformatetc_addref (LPENUMFORMATETC This)
|
||
{
|
||
enum_formats *en = (enum_formats *) This;
|
||
int ref_count = ++en->ref_count;
|
||
|
||
GDK_NOTE (DND, g_print ("ienumformatetc_addref %p %d\n", This, ref_count));
|
||
|
||
return ref_count;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
ienumformatetc_queryinterface (LPENUMFORMATETC This,
|
||
REFIID riid,
|
||
LPVOID *ppvObject)
|
||
{
|
||
GDK_NOTE (DND, {
|
||
g_print ("ienumformatetc_queryinterface %p", This);
|
||
PRINT_GUID (riid);
|
||
});
|
||
|
||
*ppvObject = NULL;
|
||
|
||
if (IsEqualGUID (riid, &IID_IUnknown))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
|
||
ienumformatetc_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else if (IsEqualGUID (riid, &IID_IEnumFORMATETC))
|
||
{
|
||
GDK_NOTE (DND, g_print ("...IEnumFORMATETC S_OK\n"));
|
||
ienumformatetc_addref (This);
|
||
*ppvObject = This;
|
||
return S_OK;
|
||
}
|
||
else
|
||
{
|
||
GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
|
||
return E_NOINTERFACE;
|
||
}
|
||
}
|
||
|
||
static ULONG STDMETHODCALLTYPE
|
||
ienumformatetc_release (LPENUMFORMATETC This)
|
||
{
|
||
enum_formats *en = (enum_formats *) This;
|
||
int ref_count = --en->ref_count;
|
||
|
||
GDK_NOTE (DND, g_print ("ienumformatetc_release %p %d\n", This, ref_count));
|
||
|
||
if (ref_count == 0)
|
||
{
|
||
idataobject_release ((LPDATAOBJECT) en->dataobj);
|
||
g_free (This);
|
||
}
|
||
|
||
return ref_count;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
ienumformatetc_next (LPENUMFORMATETC This,
|
||
ULONG celt,
|
||
LPFORMATETC elts,
|
||
ULONG *nelt)
|
||
{
|
||
enum_formats *en = (enum_formats *) This;
|
||
ULONG i, n;
|
||
ULONG formats_to_get = celt;
|
||
|
||
GDK_NOTE (DND, g_print ("ienumformatetc_next %p %d %ld ", This, en->ix, celt));
|
||
|
||
n = 0;
|
||
for (i = 0; i < formats_to_get; i++)
|
||
{
|
||
UINT fmt;
|
||
if (en->ix >= en->dataobj->formats->len)
|
||
break;
|
||
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;
|
||
|
||
n++;
|
||
}
|
||
|
||
if (nelt != NULL)
|
||
*nelt = n;
|
||
|
||
GDK_NOTE (DND, g_print ("%s\n", (n == celt) ? "S_OK" : "S_FALSE"));
|
||
|
||
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;
|
||
|
||
GDK_NOTE (DND, g_print ("ienumformatetc_skip %p %d %ld S_OK\n", This, en->ix, celt));
|
||
|
||
en->ix += celt;
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
ienumformatetc_reset (LPENUMFORMATETC This)
|
||
{
|
||
enum_formats *en = (enum_formats *) This;
|
||
|
||
GDK_NOTE (DND, g_print ("ienumformatetc_reset %p S_OK\n", This));
|
||
|
||
en->ix = 0;
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT STDMETHODCALLTYPE
|
||
ienumformatetc_clone (LPENUMFORMATETC This,
|
||
LPENUMFORMATETC *ppEnumFormatEtc)
|
||
{
|
||
enum_formats *en = (enum_formats *) This;
|
||
enum_formats *new;
|
||
|
||
GDK_NOTE (DND, g_print ("ienumformatetc_clone %p S_OK\n", This));
|
||
|
||
new = enum_formats_new (en->dataobj);
|
||
|
||
new->ix = en->ix;
|
||
|
||
*ppEnumFormatEtc = &new->ief;
|
||
|
||
return S_OK;
|
||
}
|
||
|
||
static IDropTargetVtbl idt_vtbl = {
|
||
idroptarget_queryinterface,
|
||
idroptarget_addref,
|
||
idroptarget_release,
|
||
idroptarget_dragenter,
|
||
idroptarget_dragover,
|
||
idroptarget_dragleave,
|
||
idroptarget_drop
|
||
};
|
||
|
||
static IDropSourceVtbl ids_vtbl = {
|
||
idropsource_queryinterface,
|
||
idropsource_addref,
|
||
idropsource_release,
|
||
idropsource_querycontinuedrag,
|
||
idropsource_givefeedback
|
||
};
|
||
|
||
static IDataObjectVtbl ido_vtbl = {
|
||
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
|
||
};
|
||
|
||
|
||
static target_drag_context *
|
||
target_context_new (GdkWindow *window)
|
||
{
|
||
target_drag_context *result;
|
||
|
||
result = g_new0 (target_drag_context, 1);
|
||
result->idt.lpVtbl = &idt_vtbl;
|
||
result->ref_count = 0;
|
||
|
||
result->dest_window = g_object_ref (window);
|
||
|
||
idroptarget_addref (&result->idt);
|
||
|
||
GDK_NOTE (DND, g_print ("target_context_new: %p (window %p)\n", result, result->dest_window));
|
||
|
||
return result;
|
||
}
|
||
|
||
static source_drag_context *
|
||
source_context_new (GdkWindow *window,
|
||
GList *targets)
|
||
{
|
||
GdkDragContext *context;
|
||
GdkWin32DragContext *context_win32;
|
||
source_drag_context *result;
|
||
GList *p;
|
||
|
||
context = gdk_drag_context_new (gdk_window_get_display (window));
|
||
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
||
|
||
result = g_new0 (source_drag_context, 1);
|
||
result->context = context;
|
||
result->ids.lpVtbl = &ids_vtbl;
|
||
result->ref_count = 0;
|
||
|
||
result->context->protocol = GDK_DRAG_PROTO_OLE2;
|
||
result->context->is_source = TRUE;
|
||
|
||
result->context->source_window = g_object_ref (window);
|
||
|
||
result->context->dest_window = NULL;
|
||
result->context->targets = g_list_copy (targets);
|
||
context_win32->has_image_format = FALSE;
|
||
context_win32->has_cf_png = FALSE;
|
||
context_win32->has_cf_dib = FALSE;
|
||
context_win32->has_text_uri_list = FALSE;
|
||
context_win32->has_shell_id_list = FALSE;
|
||
context_win32->has_unicodetext = FALSE;
|
||
|
||
for (p = result->context->targets; p; p = g_list_next (p))
|
||
{
|
||
gint j;
|
||
GdkAtom target = p->data;
|
||
|
||
if (target == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_TEXT_URI_LIST))
|
||
context_win32->has_text_uri_list = TRUE;
|
||
else if (target == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_CFSTR_SHELLIDLIST))
|
||
context_win32->has_shell_id_list = TRUE;
|
||
else if (target == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_PNG))
|
||
context_win32->has_cf_png = TRUE;
|
||
else if (target == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_CF_DIB))
|
||
context_win32->has_cf_dib = TRUE;
|
||
else if (target == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_GIF))
|
||
context_win32->has_gif = TRUE;
|
||
else if (target == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_JFIF))
|
||
context_win32->has_jfif = TRUE;
|
||
else if (target == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_CF_UNICODETEXT))
|
||
context_win32->has_unicodetext = TRUE;
|
||
|
||
for (j = 0; !context_win32->has_image_format && j < _gdk_win32_selection_get ()->n_known_pixbuf_formats; j++)
|
||
if (target == _gdk_win32_selection_get ()->known_pixbuf_formats[j])
|
||
context_win32->has_image_format = TRUE;
|
||
}
|
||
|
||
idropsource_addref (&result->ids);
|
||
|
||
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;
|
||
|
||
return result;
|
||
}
|
||
|
||
static data_object *
|
||
data_object_new (GdkDragContext *context)
|
||
{
|
||
data_object *result;
|
||
GList *p;
|
||
|
||
result = g_new0 (data_object, 1);
|
||
|
||
result->ido.lpVtbl = &ido_vtbl;
|
||
result->ref_count = 1;
|
||
result->context = context;
|
||
result->formats = g_array_new (FALSE, FALSE, sizeof (GdkSelTargetFormat));
|
||
|
||
for (p = context->targets; p; p = p->next)
|
||
{
|
||
GdkAtom target = p->data;
|
||
gchar *target_name = gdk_atom_name (target);
|
||
gint added_count = 0;
|
||
gint i;
|
||
|
||
GDK_NOTE (DND, g_print ("DataObject supports target 0x%p (%s)\n", target, target_name));
|
||
g_free (target_name);
|
||
|
||
added_count = _gdk_win32_add_target_to_selformats (target, result->formats);
|
||
|
||
for (i = 0; i < added_count && result->formats->len - 1 - i >= 0; i++)
|
||
GDK_NOTE (DND, g_print ("DataObject will support format 0x%x\n", g_array_index (result->formats, GdkSelTargetFormat, i).format));
|
||
}
|
||
|
||
GDK_NOTE (DND, g_print ("data_object_new: %p\n", result));
|
||
|
||
return result;
|
||
}
|
||
|
||
static enum_formats *
|
||
enum_formats_new (data_object *dataobj)
|
||
{
|
||
enum_formats *result;
|
||
|
||
result = g_new0 (enum_formats, 1);
|
||
|
||
result->ief.lpVtbl = &ief_vtbl;
|
||
result->ref_count = 1;
|
||
result->ix = 0;
|
||
result->dataobj = dataobj;
|
||
idataobject_addref ((LPDATAOBJECT) dataobj);
|
||
|
||
return result;
|
||
}
|
||
|
||
/* From MS Knowledge Base article Q130698 */
|
||
|
||
static gboolean
|
||
resolve_link (HWND hWnd,
|
||
wchar_t *link,
|
||
gchar **lpszPath)
|
||
{
|
||
WIN32_FILE_ATTRIBUTE_DATA wfad;
|
||
HRESULT hr;
|
||
IShellLinkW *pslW = NULL;
|
||
IPersistFile *ppf = NULL;
|
||
|
||
/* 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;
|
||
|
||
/* Assume failure to start with: */
|
||
*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.
|
||
*/
|
||
|
||
hr = CoCreateInstance (&CLSID_ShellLink,
|
||
NULL,
|
||
CLSCTX_INPROC_SERVER,
|
||
&IID_IShellLinkW,
|
||
(LPVOID *)&pslW);
|
||
|
||
if (SUCCEEDED (hr))
|
||
{
|
||
/* The IShellLink interface supports the IPersistFile
|
||
* interface. Get an interface pointer to it.
|
||
*/
|
||
hr = pslW->lpVtbl->QueryInterface (pslW,
|
||
&IID_IPersistFile,
|
||
(LPVOID *) &ppf);
|
||
}
|
||
|
||
if (SUCCEEDED (hr))
|
||
{
|
||
/* Load the file. */
|
||
hr = ppf->lpVtbl->Load (ppf, link, STGM_READ);
|
||
}
|
||
|
||
if (SUCCEEDED (hr))
|
||
{
|
||
/* Resolve the link by calling the Resolve()
|
||
* interface function.
|
||
*/
|
||
hr = pslW->lpVtbl->Resolve (pslW, hWnd, SLR_ANY_MATCH | SLR_NO_UI);
|
||
}
|
||
|
||
if (SUCCEEDED (hr))
|
||
{
|
||
wchar_t wtarget[MAX_PATH];
|
||
|
||
hr = pslW->lpVtbl->GetPath (pslW, wtarget, MAX_PATH, NULL, 0);
|
||
if (SUCCEEDED (hr))
|
||
*lpszPath = g_utf16_to_utf8 (wtarget, -1, NULL, NULL, NULL);
|
||
}
|
||
|
||
if (ppf)
|
||
ppf->lpVtbl->Release (ppf);
|
||
|
||
if (pslW)
|
||
pslW->lpVtbl->Release (pslW);
|
||
|
||
return SUCCEEDED (hr);
|
||
}
|
||
|
||
#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
|
||
|
||
static GdkFilterReturn
|
||
gdk_dropfiles_filter (GdkXEvent *xev,
|
||
GdkEvent *event,
|
||
gpointer data)
|
||
{
|
||
GdkDragContext *context;
|
||
GdkWin32DragContext *context_win32;
|
||
GString *result;
|
||
MSG *msg = (MSG *) xev;
|
||
HANDLE hdrop;
|
||
POINT pt;
|
||
gint nfiles, i;
|
||
gchar *fileName, *linkedFile;
|
||
|
||
if (msg->message == WM_DROPFILES)
|
||
{
|
||
GDK_NOTE (DND, g_print ("WM_DROPFILES: %p\n", msg->hwnd));
|
||
|
||
context = gdk_drag_context_new (gdk_window_get_display (event->any.window));
|
||
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
||
context->protocol = GDK_DRAG_PROTO_WIN32_DROPFILES;
|
||
context->is_source = FALSE;
|
||
|
||
context->source_window = gdk_get_default_root_window ();
|
||
g_object_ref (context->source_window);
|
||
|
||
g_set_object (&context->dest_window, event->any.window);
|
||
|
||
/* WM_DROPFILES drops are always file names */
|
||
context->targets =
|
||
g_list_append (NULL, _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_TEXT_URI_LIST));
|
||
context->actions = GDK_ACTION_COPY;
|
||
context->suggested_action = GDK_ACTION_COPY;
|
||
current_dest_drag = context;
|
||
|
||
event->dnd.type = GDK_DROP_START;
|
||
event->dnd.context = current_dest_drag;
|
||
gdk_event_set_device (event, gdk_drag_context_get_device (current_dest_drag));
|
||
gdk_event_set_seat (event, gdk_device_get_seat (gdk_drag_context_get_device (current_dest_drag)));
|
||
|
||
hdrop = (HANDLE) msg->wParam;
|
||
DragQueryPoint (hdrop, &pt);
|
||
ClientToScreen (msg->hwnd, &pt);
|
||
|
||
event->dnd.x_root = pt.x / context_win32->scale + _gdk_offset_x;
|
||
event->dnd.y_root = pt.y / context_win32->scale + _gdk_offset_y;
|
||
event->dnd.time = _gdk_win32_get_next_tick (msg->time);
|
||
|
||
nfiles = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
|
||
|
||
result = g_string_new (NULL);
|
||
for (i = 0; i < nfiles; i++)
|
||
{
|
||
gchar *uri;
|
||
wchar_t wfn[MAX_PATH];
|
||
|
||
DragQueryFileW (hdrop, i, wfn, MAX_PATH);
|
||
fileName = g_utf16_to_utf8 (wfn, -1, NULL, NULL, NULL);
|
||
|
||
/* Resolve shortcuts */
|
||
if (resolve_link (msg->hwnd, wfn, &linkedFile))
|
||
{
|
||
uri = g_filename_to_uri (linkedFile, NULL, NULL);
|
||
if (uri != NULL)
|
||
{
|
||
g_string_append (result, uri);
|
||
GDK_NOTE (DND, g_print ("... %s link to %s: %s\n",
|
||
fileName, linkedFile, uri));
|
||
g_free (uri);
|
||
}
|
||
g_free (fileName);
|
||
fileName = linkedFile;
|
||
}
|
||
else
|
||
{
|
||
uri = g_filename_to_uri (fileName, NULL, NULL);
|
||
if (uri != NULL)
|
||
{
|
||
g_string_append (result, uri);
|
||
GDK_NOTE (DND, g_print ("... %s: %s\n", fileName, uri));
|
||
g_free (uri);
|
||
}
|
||
}
|
||
|
||
#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
|
||
|
||
g_free (fileName);
|
||
g_string_append (result, "\015\012");
|
||
}
|
||
_gdk_dropfiles_store (result->str);
|
||
g_string_free (result, FALSE);
|
||
|
||
DragFinish (hdrop);
|
||
|
||
return GDK_FILTER_TRANSLATE;
|
||
}
|
||
else
|
||
return GDK_FILTER_CONTINUE;
|
||
}
|
||
|
||
|
||
|
||
void
|
||
_gdk_dnd_init (void)
|
||
{
|
||
CoInitializeEx (NULL, COINIT_APARTMENTTHREADED);
|
||
|
||
if (getenv ("GDK_WIN32_USE_EXPERIMENTAL_OLE2_DND"))
|
||
use_ole2_dnd = TRUE;
|
||
|
||
if (use_ole2_dnd)
|
||
{
|
||
HRESULT hr;
|
||
|
||
hr = OleInitialize (NULL);
|
||
|
||
if (! SUCCEEDED (hr))
|
||
g_error ("OleInitialize failed");
|
||
|
||
target_ctx_for_window = g_hash_table_new (g_direct_hash, g_direct_equal);
|
||
}
|
||
}
|
||
|
||
void
|
||
_gdk_win32_dnd_exit (void)
|
||
{
|
||
if (use_ole2_dnd)
|
||
{
|
||
OleUninitialize ();
|
||
}
|
||
|
||
CoUninitialize ();
|
||
}
|
||
|
||
/* Source side */
|
||
|
||
static void
|
||
local_send_leave (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
GdkEvent *tmp_event;
|
||
|
||
GDK_NOTE (DND, g_print ("local_send_leave: context=%p current_dest_drag=%p\n",
|
||
context,
|
||
current_dest_drag));
|
||
|
||
if ((current_dest_drag != NULL) &&
|
||
(current_dest_drag->protocol == GDK_DRAG_PROTO_LOCAL) &&
|
||
(current_dest_drag->source_window == context->source_window))
|
||
{
|
||
tmp_event = gdk_event_new (GDK_DRAG_LEAVE);
|
||
|
||
g_set_object (&tmp_event->dnd.window, context->dest_window);
|
||
/* Pass ownership of context to the event */
|
||
tmp_event->dnd.send_event = FALSE;
|
||
g_set_object (&tmp_event->dnd.context, current_dest_drag);
|
||
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
|
||
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)));
|
||
|
||
current_dest_drag = NULL;
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
}
|
||
|
||
static void
|
||
local_send_enter (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
GdkEvent *tmp_event;
|
||
GdkDragContext *new_context;
|
||
|
||
GDK_NOTE (DND, g_print ("local_send_enter: context=%p current_dest_drag=%p\n",
|
||
context,
|
||
current_dest_drag));
|
||
|
||
if (current_dest_drag != NULL)
|
||
{
|
||
g_object_unref (G_OBJECT (current_dest_drag));
|
||
current_dest_drag = NULL;
|
||
}
|
||
|
||
new_context = gdk_drag_context_new (gdk_window_get_display (context->source_window));
|
||
new_context->protocol = GDK_DRAG_PROTO_LOCAL;
|
||
new_context->is_source = FALSE;
|
||
|
||
g_set_object (&new_context->source_window, context->source_window);
|
||
g_set_object (&new_context->dest_window, context->dest_window);
|
||
|
||
new_context->targets = g_list_copy (context->targets);
|
||
|
||
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;
|
||
|
||
tmp_event = gdk_event_new (GDK_DRAG_ENTER);
|
||
g_set_object (&tmp_event->dnd.window, context->dest_window);
|
||
tmp_event->dnd.send_event = FALSE;
|
||
g_set_object (&tmp_event->dnd.context, new_context);
|
||
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
|
||
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)));
|
||
|
||
current_dest_drag = new_context;
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
|
||
static void
|
||
local_send_motion (GdkDragContext *context,
|
||
gint x_root,
|
||
gint y_root,
|
||
GdkDragAction action,
|
||
guint32 time)
|
||
{
|
||
GdkEvent *tmp_event;
|
||
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
||
|
||
GDK_NOTE (DND, g_print ("local_send_motion: context=%p (%d,%d) current_dest_drag=%p\n",
|
||
context, x_root, y_root,
|
||
current_dest_drag));
|
||
|
||
if ((current_dest_drag != NULL) &&
|
||
(current_dest_drag->protocol == GDK_DRAG_PROTO_LOCAL) &&
|
||
(current_dest_drag->source_window == context->source_window))
|
||
{
|
||
GdkWin32DragContext *current_dest_drag_win32;
|
||
|
||
tmp_event = gdk_event_new (GDK_DRAG_MOTION);
|
||
g_set_object (&tmp_event->dnd.window, current_dest_drag->dest_window);
|
||
tmp_event->dnd.send_event = FALSE;
|
||
g_set_object (&tmp_event->dnd.context, current_dest_drag);
|
||
tmp_event->dnd.time = time;
|
||
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (current_dest_drag));
|
||
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (current_dest_drag)));
|
||
|
||
current_dest_drag->suggested_action = action;
|
||
|
||
tmp_event->dnd.x_root = x_root;
|
||
tmp_event->dnd.y_root = y_root;
|
||
|
||
current_dest_drag_win32 = GDK_WIN32_DRAG_CONTEXT (current_dest_drag);
|
||
current_dest_drag_win32->last_x = x_root;
|
||
current_dest_drag_win32->last_y = y_root;
|
||
|
||
context_win32->drag_status = GDK_DRAG_STATUS_MOTION_WAIT;
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
}
|
||
|
||
static void
|
||
local_send_drop (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
GdkEvent *tmp_event;
|
||
|
||
GDK_NOTE (DND, g_print ("local_send_drop: context=%p current_dest_drag=%p\n",
|
||
context,
|
||
current_dest_drag));
|
||
|
||
if ((current_dest_drag != NULL) &&
|
||
(current_dest_drag->protocol == GDK_DRAG_PROTO_LOCAL) &&
|
||
(current_dest_drag->source_window == context->source_window))
|
||
{
|
||
GdkWin32DragContext *context_win32;
|
||
|
||
/* Pass ownership of context to the event */
|
||
tmp_event = gdk_event_new (GDK_DROP_START);
|
||
g_set_object (&tmp_event->dnd.window, current_dest_drag->dest_window);
|
||
tmp_event->dnd.send_event = FALSE;
|
||
g_set_object (&tmp_event->dnd.context, current_dest_drag);
|
||
tmp_event->dnd.time = GDK_CURRENT_TIME;
|
||
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (current_dest_drag));
|
||
gdk_event_set_seat (tmp_event, gdk_device_get_seat (gdk_drag_context_get_device (current_dest_drag)));
|
||
|
||
context_win32 = GDK_WIN32_DRAG_CONTEXT (current_dest_drag);
|
||
tmp_event->dnd.x_root = context_win32->last_x;
|
||
tmp_event->dnd.y_root = context_win32->last_y;
|
||
|
||
current_dest_drag = NULL;
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
|
||
}
|
||
|
||
static void
|
||
gdk_drag_do_leave (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
if (context->dest_window)
|
||
{
|
||
GDK_NOTE (DND, g_print ("gdk_drag_do_leave\n"));
|
||
|
||
if (!use_ole2_dnd)
|
||
{
|
||
if (context->protocol == GDK_DRAG_PROTO_LOCAL)
|
||
local_send_leave (context, time);
|
||
}
|
||
|
||
g_clear_object (&context->dest_window);
|
||
}
|
||
}
|
||
|
||
static GdkWindow *
|
||
create_drag_window (GdkScreen *screen)
|
||
{
|
||
GdkWindowAttr attrs = { 0 };
|
||
guint mask;
|
||
|
||
attrs.x = attrs.y = 0;
|
||
attrs.width = attrs.height = 100;
|
||
attrs.wclass = GDK_INPUT_OUTPUT;
|
||
attrs.window_type = GDK_WINDOW_TEMP;
|
||
attrs.type_hint = GDK_WINDOW_TYPE_HINT_DND;
|
||
attrs.visual = gdk_screen_get_rgba_visual (screen);
|
||
if (!attrs.visual)
|
||
attrs.visual = gdk_screen_get_system_visual (screen);
|
||
|
||
mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_TYPE_HINT;
|
||
|
||
return gdk_window_new (gdk_screen_get_root_window (screen), &attrs, mask);
|
||
}
|
||
|
||
GdkDragContext *
|
||
_gdk_win32_window_drag_begin (GdkWindow *window,
|
||
GdkDevice *device,
|
||
GList *targets,
|
||
gint x_root,
|
||
gint y_root)
|
||
{
|
||
GdkDragContext *new_context;
|
||
GdkWin32DragContext *context_win32;
|
||
BYTE kbd_state[256];
|
||
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
|
||
|
||
if (!use_ole2_dnd)
|
||
{
|
||
g_return_val_if_fail (window != NULL, NULL);
|
||
|
||
new_context = gdk_drag_context_new (gdk_window_get_display (window));
|
||
|
||
new_context->is_source = TRUE;
|
||
g_set_object (&new_context->source_window, window);
|
||
|
||
new_context->targets = g_list_copy (targets);
|
||
new_context->actions = 0;
|
||
context_win32 = GDK_WIN32_DRAG_CONTEXT (new_context);
|
||
}
|
||
else
|
||
{
|
||
source_drag_context *ctx;
|
||
|
||
g_return_val_if_fail (window != NULL, NULL);
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drag_begin\n"));
|
||
|
||
ctx = source_context_new (window, targets);
|
||
|
||
sel_win32->dnd_source_state = GDK_WIN32_DND_PENDING;
|
||
|
||
pending_src_context = ctx;
|
||
new_context = g_object_ref (ctx->context);
|
||
|
||
context_win32 = GDK_WIN32_DRAG_CONTEXT (new_context);
|
||
}
|
||
|
||
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_MENU] & 0x80)
|
||
context_win32->last_key_state |= MK_ALT;
|
||
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_screen (window));
|
||
|
||
return new_context;
|
||
}
|
||
|
||
void
|
||
_gdk_win32_dnd_do_dragdrop (void)
|
||
{
|
||
GdkDragContext* drag_ctx;
|
||
data_object *dobj;
|
||
HRESULT hr;
|
||
DWORD dwEffect;
|
||
|
||
if (!use_ole2_dnd)
|
||
return;
|
||
|
||
if (pending_src_context == NULL)
|
||
return;
|
||
|
||
drag_ctx = pending_src_context->context;
|
||
|
||
dobj = data_object_new (drag_ctx);
|
||
current_src_object = dobj;
|
||
|
||
/* Start dragging with mainloop inside the OLE2 API. Exits only when done */
|
||
|
||
GDK_NOTE (DND, g_print ("Calling DoDragDrop\n"));
|
||
|
||
_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);
|
||
|
||
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))))));
|
||
|
||
/* Delete dnd selection after successful move */
|
||
if (hr == DRAGDROP_S_DROP && dwEffect == DROPEFFECT_MOVE)
|
||
{
|
||
GdkWin32Selection *win32_sel = _gdk_win32_selection_get ();
|
||
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);
|
||
win32_sel->property_change_target_atom = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_DELETE);
|
||
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);
|
||
}
|
||
|
||
{
|
||
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);
|
||
}
|
||
|
||
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;
|
||
}
|
||
}
|
||
|
||
/* Untested, may not work ...
|
||
* ... but as of this writing is only used by exlusive X11 gtksocket.c
|
||
*/
|
||
GdkDragProtocol
|
||
_gdk_win32_window_get_drag_protocol (GdkWindow *window,
|
||
GdkWindow **target)
|
||
{
|
||
GdkDragProtocol protocol = GDK_DRAG_PROTO_NONE;
|
||
|
||
if (gdk_window_get_window_type (window) != GDK_WINDOW_FOREIGN)
|
||
{
|
||
if (g_object_get_data (G_OBJECT (window), "gdk-dnd-registered") != NULL)
|
||
{
|
||
if (use_ole2_dnd)
|
||
protocol = GDK_DRAG_PROTO_OLE2;
|
||
else
|
||
protocol = GDK_DRAG_PROTO_LOCAL;
|
||
}
|
||
}
|
||
|
||
if (target)
|
||
{
|
||
*target = NULL;
|
||
}
|
||
|
||
return protocol;
|
||
}
|
||
|
||
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;
|
||
}
|
||
|
||
static GdkWindow *
|
||
gdk_win32_drag_context_find_window (GdkDragContext *context,
|
||
GdkWindow *drag_window,
|
||
GdkScreen *screen,
|
||
gint x_root,
|
||
gint y_root,
|
||
GdkDragProtocol *protocol)
|
||
{
|
||
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
||
GdkWindow *dest_window, *dw;
|
||
find_window_enum_arg a;
|
||
|
||
a.x = x_root * context_win32->scale - _gdk_offset_x;
|
||
a.y = y_root * context_win32->scale - _gdk_offset_y;
|
||
a.ignore = drag_window ? GDK_WINDOW_HWND (drag_window) : NULL;
|
||
a.result = NULL;
|
||
|
||
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));
|
||
|
||
EnumWindows (find_window_enum_proc, (LPARAM) &a);
|
||
|
||
if (a.result == NULL)
|
||
dest_window = NULL;
|
||
else
|
||
{
|
||
dw = gdk_win32_handle_table_lookup (a.result);
|
||
if (dw)
|
||
{
|
||
dest_window = gdk_window_get_toplevel (dw);
|
||
g_object_ref (dest_window);
|
||
}
|
||
else
|
||
dest_window = gdk_win32_window_foreign_new_for_display (gdk_screen_get_display (screen), a.result);
|
||
|
||
if (use_ole2_dnd)
|
||
*protocol = GDK_DRAG_PROTO_OLE2;
|
||
else if (context->source_window)
|
||
*protocol = GDK_DRAG_PROTO_LOCAL;
|
||
else
|
||
*protocol = GDK_DRAG_PROTO_WIN32_DROPFILES;
|
||
}
|
||
|
||
GDK_NOTE (DND,
|
||
g_print ("gdk_drag_find_window: %p %+d%+d: %p: %p %s\n",
|
||
(drag_window ? GDK_WINDOW_HWND (drag_window) : NULL),
|
||
x_root, y_root,
|
||
a.result,
|
||
(dest_window ? GDK_WINDOW_HWND (dest_window) : NULL),
|
||
_gdk_win32_drag_protocol_to_string (*protocol)));
|
||
|
||
return dest_window;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_win32_drag_context_drag_motion (GdkDragContext *context,
|
||
GdkWindow *dest_window,
|
||
GdkDragProtocol protocol,
|
||
gint x_root,
|
||
gint y_root,
|
||
GdkDragAction suggested_action,
|
||
GdkDragAction possible_actions,
|
||
guint32 time)
|
||
{
|
||
GdkWin32DragContext *context_win32;
|
||
|
||
g_return_val_if_fail (context != NULL, FALSE);
|
||
|
||
context->actions = possible_actions;
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drag_motion: @ %+d:%+d %s suggested=%s, possible=%s\n"
|
||
" context=%p:{actions=%s,suggested=%s,action=%s}\n",
|
||
x_root, y_root,
|
||
_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)));
|
||
|
||
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
||
|
||
if (context_win32->drag_window)
|
||
move_drag_window (context, x_root, y_root);
|
||
|
||
if (!use_ole2_dnd)
|
||
{
|
||
if (context->dest_window == dest_window)
|
||
{
|
||
GdkDragContext *dest_context;
|
||
|
||
dest_context = gdk_drag_context_find (FALSE,
|
||
context->source_window,
|
||
dest_window);
|
||
|
||
if (dest_context)
|
||
dest_context->actions = context->actions;
|
||
|
||
context->suggested_action = suggested_action;
|
||
}
|
||
else
|
||
{
|
||
GdkEvent *tmp_event;
|
||
|
||
/* Send a leave to the last destination */
|
||
gdk_drag_do_leave (context, time);
|
||
context_win32->drag_status = GDK_DRAG_STATUS_DRAG;
|
||
|
||
/* Check if new destination accepts drags, and which protocol */
|
||
if (dest_window)
|
||
{
|
||
g_set_object (&context->dest_window, dest_window);
|
||
context->protocol = protocol;
|
||
|
||
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;
|
||
}
|
||
|
||
/* Push a status event, to let the client know that
|
||
* the drag changed
|
||
*/
|
||
tmp_event = gdk_event_new (GDK_DRAG_STATUS);
|
||
g_set_object (&tmp_event->dnd.window, context->source_window);
|
||
/* We use this to signal a synthetic status. Perhaps
|
||
* we should use an extra field...
|
||
*/
|
||
tmp_event->dnd.send_event = TRUE;
|
||
|
||
g_set_object (&tmp_event->dnd.context, context);
|
||
tmp_event->dnd.time = time;
|
||
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)));
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
|
||
/* Send a drag-motion event */
|
||
|
||
context_win32->last_x = x_root;
|
||
context_win32->last_y = y_root;
|
||
|
||
if (context->dest_window)
|
||
{
|
||
if (context_win32->drag_status == GDK_DRAG_STATUS_DRAG)
|
||
{
|
||
switch (context->protocol)
|
||
{
|
||
case GDK_DRAG_PROTO_LOCAL:
|
||
local_send_motion (context, x_root, y_root, suggested_action, time);
|
||
break;
|
||
|
||
case GDK_DRAG_PROTO_NONE:
|
||
g_warning ("GDK_DRAG_PROTO_NONE is not valid in gdk_drag_motion()");
|
||
break;
|
||
|
||
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;
|
||
}
|
||
}
|
||
}
|
||
|
||
GDK_NOTE (DND, g_print (" returning FALSE\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 FALSE;
|
||
}
|
||
|
||
static void
|
||
gdk_win32_drag_context_drag_drop (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
|
||
|
||
g_return_if_fail (context != NULL);
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drag_drop\n"));
|
||
|
||
if (!use_ole2_dnd)
|
||
{
|
||
if (context->dest_window &&
|
||
context->protocol == GDK_DRAG_PROTO_LOCAL)
|
||
local_send_drop (context, time);
|
||
}
|
||
else
|
||
{
|
||
sel_win32->dnd_source_state = GDK_WIN32_DND_DROPPED;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_win32_drag_context_drag_abort (GdkDragContext *context,
|
||
guint32 time)
|
||
{
|
||
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
|
||
|
||
g_return_if_fail (context != NULL);
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drag_abort\n"));
|
||
|
||
if (use_ole2_dnd)
|
||
sel_win32->dnd_source_state = GDK_WIN32_DND_NONE;
|
||
}
|
||
|
||
/* Destination side */
|
||
|
||
static void
|
||
gdk_win32_drag_context_drag_status (GdkDragContext *context,
|
||
GdkDragAction action,
|
||
guint32 time)
|
||
{
|
||
GdkDragContext *src_context;
|
||
GdkEvent *tmp_event;
|
||
|
||
g_return_if_fail (context != NULL);
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drag_status: %s\n"
|
||
" context=%p:{actions=%s,suggested=%s,action=%s}\n",
|
||
_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)));
|
||
|
||
context->action = action;
|
||
|
||
if (!use_ole2_dnd)
|
||
{
|
||
src_context = gdk_drag_context_find (TRUE,
|
||
context->source_window,
|
||
context->dest_window);
|
||
|
||
if (src_context)
|
||
{
|
||
GdkWin32DragContext *src_context_win32 = GDK_WIN32_DRAG_CONTEXT (src_context);
|
||
|
||
if (src_context_win32->drag_status == GDK_DRAG_STATUS_MOTION_WAIT)
|
||
src_context_win32->drag_status = GDK_DRAG_STATUS_DRAG;
|
||
|
||
tmp_event = gdk_event_new (GDK_DRAG_STATUS);
|
||
g_set_object (&tmp_event->dnd.window, context->source_window);
|
||
tmp_event->dnd.send_event = FALSE;
|
||
g_set_object (&tmp_event->dnd.context, src_context);
|
||
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
|
||
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)));
|
||
|
||
if (action == GDK_ACTION_DEFAULT)
|
||
action = 0;
|
||
|
||
src_context->action = action;
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_win32_drag_context_drop_reply (GdkDragContext *context,
|
||
gboolean ok,
|
||
guint32 time)
|
||
{
|
||
g_return_if_fail (context != NULL);
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drop_reply\n"));
|
||
|
||
if (!use_ole2_dnd)
|
||
if (context->dest_window)
|
||
{
|
||
if (context->protocol == GDK_DRAG_PROTO_WIN32_DROPFILES)
|
||
_gdk_dropfiles_store (NULL);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_win32_drag_context_drop_finish (GdkDragContext *context,
|
||
gboolean success,
|
||
guint32 time)
|
||
{
|
||
GdkDragContext *src_context;
|
||
GdkEvent *tmp_event;
|
||
GdkWin32Selection *sel_win32 = _gdk_win32_selection_get ();
|
||
|
||
g_return_if_fail (context != NULL);
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drop_finish\n"));
|
||
|
||
if (!use_ole2_dnd)
|
||
{
|
||
src_context = gdk_drag_context_find (TRUE,
|
||
context->source_window,
|
||
context->dest_window);
|
||
if (src_context)
|
||
{
|
||
if (gdk_drag_context_get_selected_action (src_context) == GDK_ACTION_MOVE)
|
||
{
|
||
tmp_event = gdk_event_new (GDK_SELECTION_REQUEST);
|
||
g_set_object (&tmp_event->selection.window, src_context->source_window);
|
||
tmp_event->selection.send_event = FALSE;
|
||
tmp_event->selection.selection = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_LOCAL_DND_SELECTION);
|
||
tmp_event->selection.target = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_DELETE);
|
||
sel_win32->property_change_target_atom = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_DELETE);
|
||
tmp_event->selection.property = _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_LOCAL_DND_SELECTION);
|
||
g_set_object (&tmp_event->selection.requestor, src_context->source_window);
|
||
tmp_event->selection.time = GDK_CURRENT_TIME; /* ??? */
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
|
||
tmp_event = gdk_event_new (GDK_DROP_FINISHED);
|
||
g_set_object (&tmp_event->dnd.window, src_context->source_window);
|
||
tmp_event->dnd.send_event = FALSE;
|
||
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)));
|
||
|
||
GDK_NOTE (EVENTS, _gdk_win32_print_event (tmp_event));
|
||
gdk_event_put (tmp_event);
|
||
gdk_event_free (tmp_event);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
gdk_drag_do_leave (context, time);
|
||
|
||
if (success)
|
||
sel_win32->dnd_target_state = GDK_WIN32_DND_DROPPED;
|
||
else
|
||
sel_win32->dnd_target_state = GDK_WIN32_DND_FAILED;
|
||
}
|
||
}
|
||
|
||
#if 0
|
||
|
||
static GdkFilterReturn
|
||
gdk_destroy_filter (GdkXEvent *xev,
|
||
GdkEvent *event,
|
||
gpointer data)
|
||
{
|
||
MSG *msg = (MSG *) xev;
|
||
|
||
if (msg->message == WM_DESTROY)
|
||
{
|
||
IDropTarget *idtp = (IDropTarget *) data;
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_destroy_filter: WM_DESTROY: %p\n", msg->hwnd));
|
||
#if 0
|
||
idtp->lpVtbl->Release (idtp);
|
||
#endif
|
||
RevokeDragDrop (msg->hwnd);
|
||
CoLockObjectExternal ((IUnknown*) idtp, FALSE, TRUE);
|
||
}
|
||
return GDK_FILTER_CONTINUE;
|
||
}
|
||
|
||
#endif
|
||
|
||
void
|
||
_gdk_win32_window_register_dnd (GdkWindow *window)
|
||
{
|
||
target_drag_context *ctx;
|
||
HRESULT hr;
|
||
|
||
g_return_if_fail (window != NULL);
|
||
|
||
if (gdk_window_get_window_type (window) == GDK_WINDOW_OFFSCREEN)
|
||
return;
|
||
|
||
if (g_object_get_data (G_OBJECT (window), "gdk-dnd-registered") != NULL)
|
||
return;
|
||
else
|
||
g_object_set_data (G_OBJECT (window), "gdk-dnd-registered", GINT_TO_POINTER (TRUE));
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_window_register_dnd: %p\n", GDK_WINDOW_HWND (window)));
|
||
|
||
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);
|
||
}
|
||
else
|
||
{
|
||
/* 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");
|
||
else
|
||
{
|
||
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
|
||
{
|
||
g_object_ref (window);
|
||
g_hash_table_insert (target_ctx_for_window, GDK_WINDOW_HWND (window), ctx);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gdk_win32_drag_context_drop_status (GdkDragContext *context)
|
||
{
|
||
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
||
|
||
return ! context_win32->drop_failed;
|
||
}
|
||
|
||
static GdkAtom
|
||
gdk_win32_drag_context_get_selection (GdkDragContext *context)
|
||
{
|
||
switch (context->protocol)
|
||
{
|
||
case GDK_DRAG_PROTO_LOCAL:
|
||
return _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_LOCAL_DND_SELECTION);
|
||
case GDK_DRAG_PROTO_WIN32_DROPFILES:
|
||
return _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_DROPFILES_DND);
|
||
case GDK_DRAG_PROTO_OLE2:
|
||
return _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND);
|
||
default:
|
||
return GDK_NONE;
|
||
}
|
||
}
|
||
|
||
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,
|
||
context->last_y + (context->start_y - context->last_y) * t - context->hot_y);
|
||
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_pattern_t *pattern;
|
||
cairo_t *cr;
|
||
|
||
GDK_NOTE (DND, g_print ("gdk_drag_context_drop_done: 0x%p %s\n",
|
||
context,
|
||
success ? "dropped successfully" : "dropped unsuccessfully"));
|
||
|
||
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);
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
gdk_window_set_background_pattern (win32_context->drag_window, pattern);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
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);
|
||
|
||
gdk_threads_add_timeout_full (G_PRIORITY_DEFAULT, 17,
|
||
gdk_drag_anim_timeout, anim,
|
||
(GDestroyNotify) gdk_drag_anim_destroy);
|
||
}
|
||
|
||
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_for_screen (context,
|
||
win32_context->drag_window,
|
||
gdk_display_get_default_screen (gdk_display_get_default ()),
|
||
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 ("gd_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.
|
||
*/
|
||
root_window = gdk_screen_get_root_window (gdk_window_get_screen (win32_context->ipc_window));
|
||
gdk_window_get_device_position (root_window, pointer, NULL, NULL, &state);
|
||
|
||
if (dx != 0 || dy != 0)
|
||
{
|
||
win32_context->last_x += dx;
|
||
win32_context->last_y += dy;
|
||
gdk_device_warp (pointer,
|
||
gdk_window_get_screen (win32_context->ipc_window),
|
||
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);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_win32_drag_context_class_init (GdkWin32DragContextClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
|
||
|
||
object_class->finalize = gdk_win32_drag_context_finalize;
|
||
|
||
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;
|
||
|
||
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;
|
||
|
||
}
|