forked from AuroraMiddleware/gtk
2494 lines
65 KiB
C
2494 lines
65 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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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* Comment from the old OLE2 DND code that is being merged in. Note
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* that this comment might not fully reflect reality as the code
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* obviously will have to be modified in this merge. Especially the
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* talk about supporting other than UTF-8 text is bogus, that will not
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* happen.
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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 implementation:
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*
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* This is a first pass at OLE2 support. It only supports text and unicode text
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* data types, and file list dnd (which is handled seperately as it predates OLE2
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* both in this implementation and on Windows in general).
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*
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* As such, the data type conversion from gdk selection targets to OLE2 CF_* data
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* type specifiers is partially hardwired. Fixing this is complicated by (a) the
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* fact that the widget's declared selection types aren't accessible in calls here
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* that need to declare the corresponding OLE2 data types, and (b) there isn't a
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* 1-1 correspondence between gdk target types and OLE2 types. The former needs
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* some redesign in gtk dnd (something a gdk/gtk expert should do; I have tried
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* and failed!). As an example of the latter: gdk STRING, TEXT, COMPOUND_TEXT map
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* to CF_TEXT, CF_OEMTEXT, and CF_UNICODETEXT but as a group and with conversions
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* necessary for various combinations. Currently, the code here (and in
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* gdkdnd-win32.c) can handle gdk STRING and TEXT but not COMPOUND_TEXT, and OLE2
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* CF_TEXT and CF_UNICODETEXT but not CF_OEMTEXT. The necessary conversions are
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* supplied by the implementation here.
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*
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* Note that in combination with another hack originated by Archaeopteryx
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* Software, the text conversions here may go to utf-8 unicode as the standard
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* within-gtk target or to single-byte ascii when the USE_ACP_TEXT compilation
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* flag is TRUE. This mode was added to support applications that aren't using
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* utf-8 across the gtk/gdk API but instead use single-byte ascii according to
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* the current Windows code page. See gdkim-win32.c for more info on that.
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*
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*/
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#define INITGUID
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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 "gdk/gdkdndprivate.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 <gdk/gdk.h>
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#include <glib/gstdio.h>
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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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struct _GdkWin32DragContext
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{
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GdkDragContext context;
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guint drag_status : 4; /* Current status of drag */
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guint drop_failed : 1; /* Whether the drop was unsuccessful */
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POINT ole2_dnd_last_pt; /* Coordinates from last event */
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DWORD ole2_dnd_last_key_state; /* Key state from last event */
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gboolean ole2_dnd_being_finalized;
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gint ole2_dnd_ref_count;
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IUnknown *ole2_dnd_iface;
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};
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struct _GdkWin32DragContextClass
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{
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GdkDragContextClass parent_class;
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};
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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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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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context->ole2_dnd_being_finalized = FALSE;
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context->ole2_dnd_ref_count = 1;
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context->ole2_dnd_iface = NULL;
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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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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 (object);
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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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else
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{
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if (context_win32->ole2_dnd_iface)
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{
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context_win32->ole2_dnd_being_finalized = TRUE;
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context_win32->ole2_dnd_iface->lpVtbl->Release (context_win32->ole2_dnd_iface);
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context_win32->ole2_dnd_iface = NULL;
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}
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}
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G_OBJECT_CLASS (gdk_win32_drag_context_parent_class)->finalize (object);
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}
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/* Drag Contexts */
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static GdkDragContext *
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gdk_drag_context_new (void)
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{
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GdkWin32DragContext *context_win32;
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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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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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static FORMATETC *formats;
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static int nformats;
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typedef struct {
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IDropTarget idt;
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GdkDragContext *context;
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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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} source_drag_context;
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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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} data_object;
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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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} enum_formats;
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static source_drag_context *pending_src_context = NULL;
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static IDataObject *dnd_data = NULL;
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static enum_formats *enum_formats_new (void);
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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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*/
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static GHashTable* target_ctx_for_window = NULL;
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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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GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
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int ref_count = ++context_win32->ole2_dnd_ref_count;
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GDK_NOTE (DND, g_print ("idroptarget_addref %p %d\n", This, ref_count));
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g_object_ref (G_OBJECT (ctx->context));
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return ref_count;
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}
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static HRESULT STDMETHODCALLTYPE
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idroptarget_queryinterface (LPDROPTARGET This,
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REFIID riid,
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LPVOID *ppvObject)
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{
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GDK_NOTE (DND, {
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g_print ("idroptarget_queryinterface %p ", This);
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PRINT_GUID (riid);
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});
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*ppvObject = NULL;
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if (IsEqualGUID (riid, &IID_IUnknown))
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{
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GDK_NOTE (DND, g_print ("...IUnknown S_OK\n"));
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idroptarget_addref (This);
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*ppvObject = This;
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return S_OK;
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}
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else if (IsEqualGUID (riid, &IID_IDropTarget))
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{
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GDK_NOTE (DND, g_print ("...IDropTarget S_OK\n"));
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idroptarget_addref (This);
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*ppvObject = This;
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return S_OK;
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}
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else
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{
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GDK_NOTE (DND, g_print ("...E_NOINTERFACE\n"));
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return E_NOINTERFACE;
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}
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}
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static ULONG STDMETHODCALLTYPE
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idroptarget_release (LPDROPTARGET This)
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{
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target_drag_context *ctx = (target_drag_context *) This;
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GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
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int ref_count = --context_win32->ole2_dnd_ref_count;
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GDK_NOTE (DND, g_print ("idroptarget_release %p %d\n", This, ref_count));
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if (!context_win32->ole2_dnd_being_finalized)
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g_object_unref (G_OBJECT (ctx->context));
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if (ref_count == 0)
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g_free (This);
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return ref_count;
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}
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#if 0
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static GdkAtom
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cf_to_atom (CLIPFORMAT cf)
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{
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switch (cf)
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{
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case CF_UNICODETEXT:
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return _utf8_string;
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case CF_HDROP:
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return _text_uri_list;
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case CF_DIB:
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return _image_bmp;
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}
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if (cf == _cf_url)
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return _text_uri_list;
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if (cf == _cf_html_format || cf == _cf_text_html)
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return _text_html;
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return GDK_NONE;
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}
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#endif
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static GdkDragAction
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get_suggested_action (DWORD grfKeyState)
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{
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/* This is the yucky Windows standard: Force link action if both
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* Control and Alt are down, copy if Control is down alone, move if
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* Alt is down alone, or use default of move within the app or copy
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* when origin of the drag is in another app.
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*/
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if (grfKeyState & MK_CONTROL && grfKeyState & MK_SHIFT)
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return GDK_ACTION_LINK; /* Link action not supported */
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else if (grfKeyState & MK_CONTROL)
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return GDK_ACTION_COPY;
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else if (grfKeyState & MK_ALT)
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return GDK_ACTION_MOVE;
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#if 0 /* Default is always copy for now */
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else if (_dnd_source_state == GDK_WIN32_DND_DRAGGING)
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return GDK_ACTION_MOVE;
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#endif
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else
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return GDK_ACTION_COPY;
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/* Any way to determine when to add in DROPEFFECT_SCROLL? */
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}
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/* Process pending events -- we don't want to service non-GUI events
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* forever so do one iteration and then do more only if there's a
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* pending GDK event.
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*/
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static void
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process_pending_events ()
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{
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g_main_context_iteration (NULL, FALSE);
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while (_gdk_event_queue_find_first (_gdk_display))
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g_main_context_iteration (NULL, FALSE);
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}
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static DWORD
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drop_effect_for_action (GdkDragAction action)
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{
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switch (action)
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{
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case GDK_ACTION_MOVE:
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return DROPEFFECT_MOVE;
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case GDK_ACTION_LINK:
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return DROPEFFECT_LINK;
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case GDK_ACTION_COPY:
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return DROPEFFECT_COPY;
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default:
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return DROPEFFECT_NONE;
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}
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}
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static void
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dnd_event_put (GdkEventType type,
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GdkDragContext *context,
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const POINTL pt,
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gboolean to_dest_window)
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{
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GdkEvent *e;
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e = gdk_event_new (type);
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if (to_dest_window)
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e->dnd.window = context->dest_window;
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else
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e->dnd.window = context->source_window;
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e->dnd.send_event = FALSE;
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e->dnd.context = g_object_ref (context);
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e->dnd.time = GDK_CURRENT_TIME;
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e->dnd.x_root = pt.x + _gdk_offset_x;
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e->dnd.y_root = pt.x + _gdk_offset_y;
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if (e->dnd.window != NULL)
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g_object_ref (e->dnd.window);
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gdk_event_set_device (e, gdk_drag_context_get_device (context));
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GDK_NOTE (EVENTS, _gdk_win32_print_event (e));
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gdk_event_put (e);
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gdk_event_free (e);
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}
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static HRESULT STDMETHODCALLTYPE
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idroptarget_dragenter (LPDROPTARGET This,
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LPDATAOBJECT pDataObj,
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DWORD grfKeyState,
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POINTL pt,
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LPDWORD pdwEffect)
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{
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target_drag_context *ctx = (target_drag_context *) This;
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GDK_NOTE (DND, g_print ("idroptarget_dragenter %p S_OK\n", This));
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ctx->context->suggested_action = get_suggested_action (grfKeyState);
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dnd_event_put (GDK_DRAG_ENTER, ctx->context, pt, TRUE);
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process_pending_events ();
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*pdwEffect = drop_effect_for_action (ctx->context->action);
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/* Assume that target can accept the data: In fact it may fail but
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* we are not really set up to query the target!
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*/
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return S_OK;
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}
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static HRESULT STDMETHODCALLTYPE
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idroptarget_dragover (LPDROPTARGET This,
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DWORD grfKeyState,
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POINTL pt,
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LPDWORD pdwEffect)
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{
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target_drag_context *ctx = (target_drag_context *) This;
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GDK_NOTE (DND, g_print ("idroptarget_dragover %p S_OK\n", This));
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ctx->context->suggested_action = get_suggested_action (grfKeyState);
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dnd_event_put (GDK_DRAG_MOTION, ctx->context, pt, TRUE);
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process_pending_events ();
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*pdwEffect = drop_effect_for_action (ctx->context->action);
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return S_OK;
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}
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static HRESULT STDMETHODCALLTYPE
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idroptarget_dragleave (LPDROPTARGET This)
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{
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target_drag_context *ctx = (target_drag_context *) This;
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POINTL pt = { 0, 0 };
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GDK_NOTE (DND, g_print ("idroptarget_dragleave %p S_OK\n", This));
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dnd_event_put (GDK_DRAG_LEAVE, ctx->context, pt, TRUE);
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process_pending_events ();
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return S_OK;
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}
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static HRESULT STDMETHODCALLTYPE
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idroptarget_drop (LPDROPTARGET This,
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LPDATAOBJECT pDataObj,
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DWORD grfKeyState,
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POINTL pt,
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LPDWORD pdwEffect)
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{
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target_drag_context *ctx = (target_drag_context *) This;
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GDK_NOTE (DND, g_print ("idroptarget_drop %p ", This));
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if (pDataObj == NULL)
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{
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GDK_NOTE (DND, g_print ("E_POINTER\n"));
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return E_POINTER;
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}
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|
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dnd_data = pDataObj;
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ctx->context->suggested_action = get_suggested_action (grfKeyState);
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dnd_event_put (GDK_DROP_START, ctx->context, pt, TRUE);
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process_pending_events ();
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dnd_data = NULL;
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/* Notify OLE of copy or move */
|
|
if (_dnd_target_state != GDK_WIN32_DND_DROPPED)
|
|
*pdwEffect = DROPEFFECT_NONE;
|
|
else
|
|
*pdwEffect = drop_effect_for_action (ctx->context->action);
|
|
|
|
GDK_NOTE (DND, g_print ("S_OK\n"));
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static ULONG STDMETHODCALLTYPE
|
|
idropsource_addref (LPDROPSOURCE This)
|
|
{
|
|
source_drag_context *ctx = (source_drag_context *) This;
|
|
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
|
|
|
|
int ref_count = ++context_win32->ole2_dnd_ref_count;
|
|
|
|
GDK_NOTE (DND, g_print ("idropsource_addref %p %d\n", This, ref_count));
|
|
g_object_ref (G_OBJECT (ctx->context));
|
|
|
|
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;
|
|
GdkWin32DragContext *context_win32 = GDK_WIN32_DRAG_CONTEXT (ctx->context);
|
|
|
|
int ref_count = --context_win32->ole2_dnd_ref_count;
|
|
|
|
GDK_NOTE (DND, g_print ("idropsource_release %p %d\n", This, ref_count));
|
|
|
|
if (!context_win32->ole2_dnd_being_finalized)
|
|
g_object_unref (G_OBJECT (ctx->context));
|
|
|
|
if (ref_count == 0)
|
|
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;
|
|
gboolean changed = FALSE;
|
|
HWND hwnd = GDK_WINDOW_HWND (context->source_window);
|
|
LPARAM lparam;
|
|
WPARAM wparam;
|
|
|
|
if (!API_CALL (GetCursorPos, (&pt)))
|
|
return FALSE;
|
|
|
|
if (!API_CALL (ScreenToClient, (hwnd, &pt)))
|
|
return FALSE;
|
|
|
|
if (pt.x != context_win32->ole2_dnd_last_pt.x || pt.y != context_win32->ole2_dnd_last_pt.y ||
|
|
key_state != context_win32->ole2_dnd_last_key_state)
|
|
{
|
|
lparam = MAKELPARAM (pt.x, pt.y);
|
|
wparam = key_state;
|
|
if (pt.x != context_win32->ole2_dnd_last_pt.x || pt.y != context_win32->ole2_dnd_last_pt.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->ole2_dnd_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->ole2_dnd_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->ole2_dnd_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->ole2_dnd_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->ole2_dnd_last_key_state & MK_SHIFT))
|
|
{
|
|
if (key_state & MK_CONTROL)
|
|
SendMessage (hwnd, WM_KEYDOWN, VK_SHIFT, 0);
|
|
else
|
|
SendMessage (hwnd, WM_KEYUP, VK_SHIFT, 0);
|
|
}
|
|
|
|
changed = TRUE;
|
|
context_win32->ole2_dnd_last_key_state = key_state;
|
|
context_win32->ole2_dnd_last_pt = pt;
|
|
}
|
|
|
|
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;
|
|
|
|
GDK_NOTE (DND, g_print ("idropsource_querycontinuedrag %p ", This));
|
|
|
|
if (send_change_events (ctx->context, grfKeyState, fEscapePressed))
|
|
process_pending_events ();
|
|
|
|
if (_dnd_source_state == GDK_WIN32_DND_DROPPED)
|
|
{
|
|
GDK_NOTE (DND, g_print ("DRAGDROP_S_DROP\n"));
|
|
return DRAGDROP_S_DROP;
|
|
}
|
|
else if (_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;
|
|
GdkDragAction suggested_action;
|
|
|
|
GDK_NOTE (DND, g_print ("idropsource_givefeedback %p DRAGDROP_S_USEDEFAULTCURSORS\n", This));
|
|
|
|
if (dwEffect == DROPEFFECT_MOVE)
|
|
suggested_action = GDK_ACTION_MOVE;
|
|
else
|
|
suggested_action = GDK_ACTION_COPY;
|
|
ctx->context->action = suggested_action;
|
|
|
|
if (dwEffect == DROPEFFECT_NONE)
|
|
{
|
|
if (ctx->context->dest_window != NULL)
|
|
{
|
|
g_object_unref (ctx->context->dest_window);
|
|
ctx->context->dest_window = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ctx->context->dest_window == NULL)
|
|
ctx->context->dest_window = g_object_ref (_gdk_root);
|
|
}
|
|
|
|
return DRAGDROP_S_USEDEFAULTCURSORS;
|
|
}
|
|
|
|
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_free (This);
|
|
|
|
return ref_count;
|
|
}
|
|
|
|
static HRESULT
|
|
query (LPDATAOBJECT This,
|
|
LPFORMATETC pFormatEtc)
|
|
{
|
|
int 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 < nformats; i++)
|
|
if (pFormatEtc->cfFormat == formats[i].cfFormat)
|
|
return S_OK;
|
|
|
|
return DV_E_FORMATETC;
|
|
}
|
|
|
|
static FORMATETC *active_pFormatEtc = NULL;
|
|
static STGMEDIUM *active_pMedium = NULL;
|
|
|
|
static HRESULT STDMETHODCALLTYPE
|
|
idataobject_getdata (LPDATAOBJECT This,
|
|
LPFORMATETC pFormatEtc,
|
|
LPSTGMEDIUM pMedium)
|
|
{
|
|
data_object *ctx = (data_object *) This;
|
|
GdkAtom target;
|
|
HRESULT hr;
|
|
GdkEvent e;
|
|
|
|
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)
|
|
return hr;
|
|
|
|
/* Append a GDK_SELECTION_GET event and then hope the app sets the
|
|
* property associated with the _gdk_ole2_dnd atom
|
|
*/
|
|
|
|
active_pFormatEtc = pFormatEtc;
|
|
active_pMedium = pMedium;
|
|
|
|
target = GDK_TARGET_STRING;
|
|
|
|
e.type = GDK_SELECTION_REQUEST;
|
|
e.selection.window = ctx->context->source_window;
|
|
e.selection.send_event = FALSE; /* ??? */
|
|
/* FIXME: Should really both selection and property be _gdk_ole2_dnd? */
|
|
e.selection.selection = _gdk_ole2_dnd;
|
|
/* FIXME: Target? */
|
|
e.selection.target = _utf8_string;
|
|
e.selection.property = _gdk_ole2_dnd;
|
|
e.selection.time = GDK_CURRENT_TIME;
|
|
|
|
g_object_ref (e.selection.window);
|
|
|
|
GDK_NOTE (EVENTS, _gdk_win32_print_event (&e));
|
|
gdk_event_put (&e);
|
|
process_pending_events ();
|
|
|
|
active_pFormatEtc = NULL;
|
|
active_pMedium = NULL;
|
|
|
|
if (pMedium->hGlobal == NULL) {
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
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)
|
|
GDK_NOTE (DND, {
|
|
g_print ("idataobject_querygetdata %p %s \n",
|
|
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 ()->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)
|
|
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;
|
|
int i, n;
|
|
|
|
GDK_NOTE (DND, g_print ("ienumformatetc_next %p %d %ld ", This, en->ix, celt));
|
|
|
|
n = 0;
|
|
for (i = 0; i < celt; i++)
|
|
{
|
|
if (en->ix >= nformats)
|
|
break;
|
|
elts[i] = formats[en->ix++];
|
|
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 ();
|
|
|
|
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)
|
|
{
|
|
GdkDragContext *context;
|
|
GdkWin32DragContext *context_win32;
|
|
target_drag_context *result;
|
|
GdkDevice *device;
|
|
GdkDeviceManager *device_manager;
|
|
|
|
context = gdk_drag_context_new ();
|
|
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
|
|
|
result = g_new0 (target_drag_context, 1);
|
|
result->context = context;
|
|
result->idt.lpVtbl = &idt_vtbl;
|
|
|
|
result->context->protocol = GDK_DRAG_PROTO_OLE2;
|
|
result->context->is_source = FALSE;
|
|
|
|
device_manager = gdk_display_get_device_manager (_gdk_display);
|
|
device = gdk_device_manager_get_client_pointer (device_manager);
|
|
gdk_drag_context_set_device (result->context, device);
|
|
|
|
result->context->source_window = NULL;
|
|
|
|
result->context->dest_window = window;
|
|
g_object_ref (window);
|
|
|
|
/* FIXME: context->targets? */
|
|
result->context->actions = GDK_ACTION_DEFAULT | GDK_ACTION_COPY | GDK_ACTION_MOVE;
|
|
result->context->suggested_action = GDK_ACTION_MOVE;
|
|
result->context->action = GDK_ACTION_MOVE;
|
|
|
|
context_win32->ole2_dnd_iface = (IUnknown *) &result->idt;
|
|
idroptarget_addref (&result->idt);
|
|
|
|
GDK_NOTE (DND, g_print ("target_context_new: %p\n", result));
|
|
|
|
return result;
|
|
}
|
|
|
|
static source_drag_context *
|
|
source_context_new (GdkWindow *window,
|
|
GList *targets)
|
|
{
|
|
GdkDragContext *context;
|
|
GdkWin32DragContext *context_win32;
|
|
source_drag_context *result;
|
|
GdkDevice *device;
|
|
GdkDeviceManager *device_manager;
|
|
|
|
context = gdk_drag_context_new ();
|
|
context_win32 = GDK_WIN32_DRAG_CONTEXT (context);
|
|
|
|
result = g_new0 (source_drag_context, 1);
|
|
result->context = context;
|
|
result->ids.lpVtbl = &ids_vtbl;
|
|
|
|
result->context->protocol = GDK_DRAG_PROTO_OLE2;
|
|
result->context->is_source = TRUE;
|
|
|
|
device_manager = gdk_display_get_device_manager (_gdk_display);
|
|
device = gdk_device_manager_get_client_pointer (device_manager);
|
|
gdk_drag_context_set_device (result->context, device);
|
|
|
|
result->context->source_window = window;
|
|
g_object_ref (window);
|
|
|
|
result->context->dest_window = NULL;
|
|
result->context->targets = g_list_copy (targets);
|
|
|
|
context_win32->ole2_dnd_iface = (IUnknown *) &result->ids;
|
|
idropsource_addref (&result->ids);
|
|
|
|
GDK_NOTE (DND, g_print ("source_context_new: %p\n", result));
|
|
|
|
return result;
|
|
}
|
|
|
|
static data_object *
|
|
data_object_new (GdkDragContext *context)
|
|
{
|
|
data_object *result;
|
|
|
|
result = g_new0 (data_object, 1);
|
|
|
|
result->ido.lpVtbl = &ido_vtbl;
|
|
result->ref_count = 1;
|
|
result->context = context;
|
|
|
|
GDK_NOTE (DND, g_print ("data_object_new: %p\n", result));
|
|
|
|
return result;
|
|
}
|
|
|
|
static enum_formats *
|
|
enum_formats_new (void)
|
|
{
|
|
enum_formats *result;
|
|
|
|
result = g_new0 (enum_formats, 1);
|
|
|
|
result->ief.lpVtbl = &ief_vtbl;
|
|
result->ref_count = 1;
|
|
result->ix = 0;
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
_gdk_win32_ole2_dnd_property_change (GdkAtom type,
|
|
gint format,
|
|
const guchar *data,
|
|
gint nelements)
|
|
{
|
|
if (use_ole2_dnd)
|
|
{
|
|
HGLOBAL hdata = NULL;
|
|
|
|
if (active_pFormatEtc == NULL || active_pMedium == NULL)
|
|
return;
|
|
|
|
/* Set up the data buffer for wide character text request */
|
|
if (active_pFormatEtc->cfFormat == CF_UNICODETEXT)
|
|
{
|
|
gunichar2 *wdata;
|
|
glong wlen;
|
|
|
|
wdata = g_utf8_to_utf16 ((const char *) data, -1, NULL, &wlen, NULL);
|
|
hdata = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, (wlen + 1) * 2);
|
|
if (hdata)
|
|
{
|
|
wchar_t *ptr = (wchar_t *) GlobalLock(hdata);
|
|
memcpy (ptr, wdata, (wlen + 1) * 2);
|
|
GlobalUnlock(hdata);
|
|
}
|
|
g_free (wdata);
|
|
}
|
|
else
|
|
g_warning ("Only text handled for now");
|
|
|
|
/* Pack up data */
|
|
active_pMedium->tymed = TYMED_HGLOBAL;
|
|
active_pMedium->hGlobal = hdata;
|
|
active_pMedium->pUnkForRelease = 0;
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
GString *result;
|
|
MSG *msg = (MSG *) xev;
|
|
HANDLE hdrop;
|
|
POINT pt;
|
|
gint nfiles, i;
|
|
gchar *fileName, *linkedFile;
|
|
GdkDevice *device;
|
|
GdkDeviceManager *device_manager;
|
|
|
|
if (msg->message == WM_DROPFILES)
|
|
{
|
|
GDK_NOTE (DND, g_print ("WM_DROPFILES: %p\n", msg->hwnd));
|
|
|
|
context = gdk_drag_context_new ();
|
|
context->protocol = GDK_DRAG_PROTO_WIN32_DROPFILES;
|
|
context->is_source = FALSE;
|
|
|
|
device_manager = gdk_display_get_device_manager (_gdk_display);
|
|
device = gdk_device_manager_get_client_pointer (device_manager);
|
|
gdk_drag_context_set_device (context, device);
|
|
|
|
context->source_window = _gdk_root;
|
|
g_object_ref (context->source_window);
|
|
|
|
context->dest_window = event->any.window;
|
|
g_object_ref (context->dest_window);
|
|
|
|
/* WM_DROPFILES drops are always file names */
|
|
context->targets =
|
|
g_list_append (NULL, _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));
|
|
|
|
hdrop = (HANDLE) msg->wParam;
|
|
DragQueryPoint (hdrop, &pt);
|
|
ClientToScreen (msg->hwnd, &pt);
|
|
|
|
event->dnd.x_root = pt.x + _gdk_offset_x;
|
|
event->dnd.y_root = pt.y + _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;
|
|
}
|
|
|
|
static void
|
|
add_format (GArray *fmts,
|
|
CLIPFORMAT cf)
|
|
{
|
|
FORMATETC fmt;
|
|
|
|
fmt.cfFormat = cf;
|
|
fmt.ptd = NULL;
|
|
fmt.dwAspect = DVASPECT_CONTENT;
|
|
fmt.lindex = -1;
|
|
fmt.tymed = TYMED_HGLOBAL;
|
|
|
|
g_array_append_val (fmts, fmt);
|
|
}
|
|
|
|
|
|
void
|
|
_gdk_dnd_init (void)
|
|
{
|
|
if (getenv ("GDK_WIN32_USE_EXPERIMENTAL_OLE2_DND"))
|
|
use_ole2_dnd = TRUE;
|
|
|
|
if (use_ole2_dnd)
|
|
{
|
|
HRESULT hr;
|
|
GArray *fmts;
|
|
|
|
hr = OleInitialize (NULL);
|
|
|
|
if (! SUCCEEDED (hr))
|
|
g_error ("OleInitialize failed");
|
|
|
|
fmts = g_array_new (FALSE, FALSE, sizeof (FORMATETC));
|
|
|
|
/* The most important presumably */
|
|
add_format (fmts, CF_UNICODETEXT);
|
|
|
|
/* Used for GTK+ internal DND, I think was the intent? Anyway, code below assumes
|
|
* this is at index 1.
|
|
*/
|
|
add_format (fmts, CF_GDIOBJFIRST);
|
|
|
|
add_format (fmts, CF_HDROP);
|
|
|
|
add_format (fmts, _cf_png);
|
|
add_format (fmts, CF_DIB);
|
|
|
|
add_format (fmts, _cf_url);
|
|
add_format (fmts, _cf_html_format);
|
|
add_format (fmts, _cf_text_html);
|
|
|
|
nformats = fmts->len;
|
|
formats = (FORMATETC*) g_array_free (fmts, FALSE);
|
|
|
|
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 ();
|
|
}
|
|
}
|
|
|
|
/* 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);
|
|
|
|
tmp_event->dnd.window = g_object_ref (context->dest_window);
|
|
/* Pass ownership of context to the event */
|
|
tmp_event->dnd.send_event = FALSE;
|
|
tmp_event->dnd.context = g_object_ref (current_dest_drag);
|
|
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
|
|
gdk_event_set_device (tmp_event, 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;
|
|
GdkDevice *device;
|
|
GdkDeviceManager *device_manager;
|
|
|
|
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 ();
|
|
new_context->protocol = GDK_DRAG_PROTO_LOCAL;
|
|
new_context->is_source = FALSE;
|
|
|
|
device_manager = gdk_display_get_device_manager (_gdk_display);
|
|
device = gdk_device_manager_get_client_pointer (device_manager);
|
|
gdk_drag_context_set_device (new_context, device);
|
|
|
|
new_context->source_window = context->source_window;
|
|
g_object_ref (new_context->source_window);
|
|
|
|
new_context->dest_window = context->dest_window;
|
|
g_object_ref (new_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);
|
|
tmp_event->dnd.window = g_object_ref (context->dest_window);
|
|
tmp_event->dnd.send_event = FALSE;
|
|
tmp_event->dnd.context = g_object_ref (new_context);
|
|
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
|
|
gdk_event_set_device (tmp_event, 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);
|
|
tmp_event->dnd.window = g_object_ref (current_dest_drag->dest_window);
|
|
tmp_event->dnd.send_event = FALSE;
|
|
tmp_event->dnd.context = g_object_ref (current_dest_drag);
|
|
tmp_event->dnd.time = time;
|
|
gdk_event_set_device (tmp_event, 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->ole2_dnd_last_pt.x = x_root - _gdk_offset_x;
|
|
current_dest_drag_win32->ole2_dnd_last_pt.y = y_root - _gdk_offset_y;
|
|
|
|
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);
|
|
tmp_event->dnd.window = g_object_ref (current_dest_drag->dest_window);
|
|
tmp_event->dnd.send_event = FALSE;
|
|
tmp_event->dnd.context = g_object_ref (current_dest_drag);
|
|
tmp_event->dnd.time = GDK_CURRENT_TIME;
|
|
gdk_event_set_device (tmp_event, gdk_drag_context_get_device (current_dest_drag));
|
|
|
|
context_win32 = GDK_WIN32_DRAG_CONTEXT (current_dest_drag);
|
|
tmp_event->dnd.x_root = context_win32->ole2_dnd_last_pt.x + _gdk_offset_x;
|
|
tmp_event->dnd.y_root = context_win32->ole2_dnd_last_pt.y + _gdk_offset_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_object_unref (context->dest_window);
|
|
context->dest_window = NULL;
|
|
}
|
|
}
|
|
|
|
GdkDragContext *
|
|
_gdk_win32_window_drag_begin (GdkWindow *window,
|
|
GdkDevice *device,
|
|
GList *targets)
|
|
{
|
|
if (!use_ole2_dnd)
|
|
{
|
|
GdkDragContext *new_context;
|
|
GdkDevice *device;
|
|
GdkDeviceManager *device_manager;
|
|
|
|
g_return_val_if_fail (window != NULL, NULL);
|
|
|
|
new_context = gdk_drag_context_new ();
|
|
|
|
device_manager = gdk_display_get_device_manager (_gdk_display);
|
|
device = gdk_device_manager_get_client_pointer (device_manager);
|
|
gdk_drag_context_set_device (new_context, device);
|
|
|
|
new_context->is_source = TRUE;
|
|
|
|
new_context->source_window = window;
|
|
g_object_ref (window);
|
|
gdk_drag_context_set_device (new_context, device);
|
|
|
|
new_context->targets = g_list_copy (targets);
|
|
new_context->actions = 0;
|
|
|
|
return 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);
|
|
|
|
_dnd_source_state = GDK_WIN32_DND_PENDING;
|
|
|
|
pending_src_context = ctx;
|
|
g_object_ref (ctx->context);
|
|
|
|
return ctx->context;
|
|
}
|
|
}
|
|
|
|
void
|
|
_gdk_win32_dnd_do_dragdrop (void)
|
|
{
|
|
if (use_ole2_dnd)
|
|
{
|
|
GdkDragContext* drag_ctx;
|
|
GdkWin32DragContext *drag_ctx_win32;
|
|
BYTE kbd_state[256];
|
|
data_object *dobj;
|
|
HRESULT hr;
|
|
DWORD dwEffect;
|
|
|
|
#if 0
|
|
HGLOBAL global;
|
|
STGMEDIUM medium;
|
|
#endif
|
|
|
|
if (pending_src_context == NULL)
|
|
return;
|
|
|
|
drag_ctx = pending_src_context->context;
|
|
drag_ctx_win32 = GDK_WIN32_DRAG_CONTEXT (drag_ctx);
|
|
|
|
dobj = data_object_new (drag_ctx);
|
|
|
|
API_CALL (GetCursorPos, (&drag_ctx_win32->ole2_dnd_last_pt));
|
|
API_CALL (ScreenToClient, (GDK_WINDOW_HWND (drag_ctx->source_window), &drag_ctx_win32->ole2_dnd_last_pt));
|
|
drag_ctx_win32->ole2_dnd_last_key_state = 0;
|
|
API_CALL (GetKeyboardState, (kbd_state));
|
|
|
|
if (kbd_state[VK_CONTROL])
|
|
drag_ctx_win32->ole2_dnd_last_key_state |= MK_CONTROL;
|
|
if (kbd_state[VK_SHIFT])
|
|
drag_ctx_win32->ole2_dnd_last_key_state |= MK_SHIFT;
|
|
if (kbd_state[VK_LBUTTON])
|
|
drag_ctx_win32->ole2_dnd_last_key_state |= MK_LBUTTON;
|
|
if (kbd_state[VK_MBUTTON])
|
|
drag_ctx_win32->ole2_dnd_last_key_state |= MK_MBUTTON;
|
|
if (kbd_state[VK_RBUTTON])
|
|
drag_ctx_win32->ole2_dnd_last_key_state |= MK_RBUTTON;
|
|
|
|
#if 0
|
|
global = GlobalAlloc (GMEM_FIXED, sizeof (ctx));
|
|
|
|
memcpy (&global, ctx, sizeof (ctx));
|
|
|
|
medium.tymed = TYMED_HGLOBAL;
|
|
medium.hGlobal = global;
|
|
medium.pUnkForRelease = NULL;
|
|
|
|
/* FIXME I wish I remember what I was thinking of here, i.e. what
|
|
* the formats[1] signifies, i.e. the CF_GDIOBJFIRST FORMATETC?
|
|
*/
|
|
dobj->ido.lpVtbl->SetData (&dobj->ido, &formats[1], &medium, TRUE);
|
|
#endif
|
|
|
|
/* 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 ();
|
|
hr = DoDragDrop (&dobj->ido, &pending_src_context->ids,
|
|
DROPEFFECT_COPY | DROPEFFECT_MOVE,
|
|
&dwEffect);
|
|
_gdk_win32_end_modal_call ();
|
|
|
|
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)
|
|
{
|
|
GdkEvent tmp_event;
|
|
|
|
tmp_event.type = GDK_SELECTION_REQUEST;
|
|
tmp_event.selection.window = drag_ctx->source_window;
|
|
tmp_event.selection.send_event = FALSE;
|
|
tmp_event.selection.selection = _gdk_ole2_dnd;
|
|
tmp_event.selection.target = _delete;
|
|
tmp_event.selection.property = _gdk_ole2_dnd; /* ??? */
|
|
tmp_event.selection.time = GDK_CURRENT_TIME; /* ??? */
|
|
g_object_ref (tmp_event.selection.window);
|
|
|
|
GDK_NOTE (EVENTS, _gdk_win32_print_event (&tmp_event));
|
|
gdk_event_put (&tmp_event);
|
|
}
|
|
|
|
#if 0
|
|
// Send a GDK_DROP_FINISHED to the source window
|
|
GetCursorPos (&pt);
|
|
ptl.x = pt.x;
|
|
ptl.y = pt.y;
|
|
if ( pending_src_context != NULL && pending_src_context->context != NULL
|
|
&& pending_src_context->context->source_window != NULL )
|
|
push_dnd_event (GDK_DROP_FINISHED, pending_src_context->context, ptl, FALSE);
|
|
#endif
|
|
|
|
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)
|
|
{
|
|
GdkWindow *dest_window, *dw;
|
|
find_window_enum_arg a;
|
|
|
|
a.x = x_root - _gdk_offset_x;
|
|
a.y = y_root - _gdk_offset_y;
|
|
a.ignore = drag_window ? GDK_WINDOW_HWND (drag_window) : NULL;
|
|
a.result = NULL;
|
|
|
|
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_display, 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: %s suggested=%s, possible=%s\n"
|
|
" context=%p:{actions=%s,suggested=%s,action=%s}\n",
|
|
_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 (!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)
|
|
{
|
|
context->dest_window = dest_window;
|
|
g_object_ref (context->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);
|
|
tmp_event->dnd.window = g_object_ref (context->source_window);
|
|
/* We use this to signal a synthetic status. Perhaps
|
|
* we should use an extra field...
|
|
*/
|
|
tmp_event->dnd.send_event = TRUE;
|
|
|
|
tmp_event->dnd.context = g_object_ref (context);
|
|
tmp_event->dnd.time = time;
|
|
gdk_event_set_device (tmp_event, 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->ole2_dnd_last_pt.x = x_root - _gdk_offset_x;
|
|
context_win32->ole2_dnd_last_pt.y = y_root - _gdk_offset_y;
|
|
|
|
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)
|
|
{
|
|
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
|
|
{
|
|
_dnd_source_state = GDK_WIN32_DND_DROPPED;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_win32_drag_context_drag_abort (GdkDragContext *context,
|
|
guint32 time)
|
|
{
|
|
g_return_if_fail (context != NULL);
|
|
|
|
GDK_NOTE (DND, g_print ("gdk_drag_abort\n"));
|
|
|
|
if (use_ole2_dnd)
|
|
_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);
|
|
tmp_event->dnd.window = g_object_ref (context->source_window);
|
|
tmp_event->dnd.send_event = FALSE;
|
|
tmp_event->dnd.context = g_object_ref (src_context);
|
|
tmp_event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
|
|
gdk_event_set_device (tmp_event, 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;
|
|
|
|
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)
|
|
{
|
|
tmp_event = gdk_event_new (GDK_DROP_FINISHED);
|
|
tmp_event->dnd.window = g_object_ref (src_context->source_window);
|
|
tmp_event->dnd.send_event = FALSE;
|
|
tmp_event->dnd.context = g_object_ref (src_context);
|
|
gdk_event_set_device (tmp_event, 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)
|
|
_dnd_target_state = GDK_WIN32_DND_DROPPED;
|
|
else
|
|
_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;
|
|
|
|
/* Register for OLE2 d&d : similarly, claim to accept all supported
|
|
* data types because we cannot know from here what the window
|
|
* actually accepts.
|
|
*/
|
|
/* FIXME: This of course won't work with user-extensible data types! */
|
|
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 _local_dnd;
|
|
case GDK_DRAG_PROTO_WIN32_DROPFILES:
|
|
return _gdk_win32_dropfiles;
|
|
case GDK_DRAG_PROTO_OLE2:
|
|
return _gdk_ole2_dnd;
|
|
default:
|
|
return GDK_NONE;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|