1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 #include "gdkx11dnd.h"
30 #include "gdkdndprivate.h"
33 #include "gdkinternals.h"
35 #include "gdkproperty.h"
36 #include "gdkprivate-x11.h"
37 #include "gdkscreen-x11.h"
38 #include "gdkdisplay-x11.h"
41 #include <X11/Xutil.h>
42 #include <X11/Xatom.h>
43 #include <X11/extensions/shape.h>
44 #ifdef HAVE_XCOMPOSITE
45 #include <X11/extensions/Xcomposite.h>
52 GDK_DRAG_STATUS_MOTION_WAIT,
53 GDK_DRAG_STATUS_ACTION_WAIT,
59 gint x, y, width, height;
61 gboolean shape_selected;
63 cairo_region_t *shape;
68 GHashTable *child_hash;
75 struct _GdkX11DragContext
77 GdkDragContext context;
82 guint16 last_x; /* Coordinates from last event */
84 GdkDragAction old_action; /* The last action we sent to the source */
85 GdkDragAction old_actions; /* The last actions we sent to the source */
86 GdkDragAction xdnd_actions; /* What is currently set in XdndActionList */
88 Window dest_xid; /* The last window we looked up */
89 Window drop_xid; /* The (non-proxied) window that is receiving drops */
90 guint xdnd_targets_set : 1; /* Whether we've already set XdndTypeList */
91 guint xdnd_actions_set : 1; /* Whether we've already set XdndActionList */
92 guint xdnd_have_actions : 1; /* Whether an XdndActionList was provided */
93 guint motif_targets_set : 1; /* Whether we've already set motif initiator info */
94 guint drag_status : 4; /* current status of drag */
96 guint drop_failed : 1; /* Whether the drop was unsuccessful */
97 guint version; /* Xdnd protocol version */
99 GSList *window_caches;
102 struct _GdkX11DragContextClass
104 GdkDragContextClass parent_class;
107 /* Forward declarations */
109 static GdkWindowCache *gdk_window_cache_get (GdkScreen *screen);
110 static GdkWindowCache *gdk_window_cache_ref (GdkWindowCache *cache);
111 static void gdk_window_cache_unref (GdkWindowCache *cache);
113 static void motif_read_target_table (GdkDisplay *display);
115 static GdkFilterReturn motif_dnd_filter (GdkXEvent *xev,
119 static GdkFilterReturn xdnd_enter_filter (GdkXEvent *xev,
122 static GdkFilterReturn xdnd_leave_filter (GdkXEvent *xev,
125 static GdkFilterReturn xdnd_position_filter (GdkXEvent *xev,
128 static GdkFilterReturn xdnd_status_filter (GdkXEvent *xev,
131 static GdkFilterReturn xdnd_finished_filter (GdkXEvent *xev,
134 static GdkFilterReturn xdnd_drop_filter (GdkXEvent *xev,
138 static void xdnd_manage_source_filter (GdkDragContext *context,
140 gboolean add_filter);
142 static GList *contexts;
143 static GSList *window_caches;
145 static const struct {
146 const char *atom_name;
149 { "_MOTIF_DRAG_AND_DROP_MESSAGE", motif_dnd_filter },
151 { "XdndEnter", xdnd_enter_filter },
152 { "XdndLeave", xdnd_leave_filter },
153 { "XdndPosition", xdnd_position_filter },
154 { "XdndStatus", xdnd_status_filter },
155 { "XdndFinished", xdnd_finished_filter },
156 { "XdndDrop", xdnd_drop_filter },
160 G_DEFINE_TYPE (GdkX11DragContext, gdk_x11_drag_context, GDK_TYPE_DRAG_CONTEXT)
163 gdk_x11_drag_context_init (GdkX11DragContext *context)
165 contexts = g_list_prepend (contexts, context);
168 static void gdk_x11_drag_context_finalize (GObject *object);
169 static GdkWindow * gdk_x11_drag_context_find_window (GdkDragContext *context,
170 GdkWindow *drag_window,
174 GdkDragProtocol *protocol);
175 static gboolean gdk_x11_drag_context_drag_motion (GdkDragContext *context,
176 GdkWindow *dest_window,
177 GdkDragProtocol protocol,
180 GdkDragAction suggested_action,
181 GdkDragAction possible_actions,
183 static void gdk_x11_drag_context_drag_status (GdkDragContext *context,
184 GdkDragAction action,
186 static void gdk_x11_drag_context_drag_abort (GdkDragContext *context,
188 static void gdk_x11_drag_context_drag_drop (GdkDragContext *context,
190 static void gdk_x11_drag_context_drop_reply (GdkDragContext *context,
193 static void gdk_x11_drag_context_drop_finish (GdkDragContext *context,
196 static gboolean gdk_x11_drag_context_drop_status (GdkDragContext *context);
197 static GdkAtom gdk_x11_drag_context_get_selection (GdkDragContext *context);
200 gdk_x11_drag_context_class_init (GdkX11DragContextClass *klass)
202 GObjectClass *object_class = G_OBJECT_CLASS (klass);
203 GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
205 object_class->finalize = gdk_x11_drag_context_finalize;
207 context_class->find_window = gdk_x11_drag_context_find_window;
208 context_class->drag_status = gdk_x11_drag_context_drag_status;
209 context_class->drag_motion = gdk_x11_drag_context_drag_motion;
210 context_class->drag_abort = gdk_x11_drag_context_drag_abort;
211 context_class->drag_drop = gdk_x11_drag_context_drag_drop;
212 context_class->drop_reply = gdk_x11_drag_context_drop_reply;
213 context_class->drop_finish = gdk_x11_drag_context_drop_finish;
214 context_class->drop_status = gdk_x11_drag_context_drop_status;
215 context_class->get_selection = gdk_x11_drag_context_get_selection;
219 gdk_x11_drag_context_finalize (GObject *object)
221 GdkDragContext *context = GDK_DRAG_CONTEXT (object);
222 GdkX11DragContext *x11_context = GDK_X11_DRAG_CONTEXT (object);
224 if (context->source_window)
226 if ((context->protocol == GDK_DRAG_PROTO_XDND) && !context->is_source)
227 xdnd_manage_source_filter (context, context->source_window, FALSE);
230 g_slist_free_full (x11_context->window_caches, (GDestroyNotify)gdk_window_cache_unref);
231 x11_context->window_caches = NULL;
233 contexts = g_list_remove (contexts, context);
235 G_OBJECT_CLASS (gdk_x11_drag_context_parent_class)->finalize (object);
240 static GdkDragContext *
241 gdk_drag_context_find (GdkDisplay *display,
246 GList *tmp_list = contexts;
247 GdkDragContext *context;
248 GdkX11DragContext *context_x11;
249 Window context_dest_xid;
253 context = (GdkDragContext *)tmp_list->data;
254 context_x11 = (GdkX11DragContext *)context;
256 if ((context->source_window && gdk_window_get_display (context->source_window) != display) ||
257 (context->dest_window && gdk_window_get_display (context->dest_window) != display))
260 context_dest_xid = context->dest_window
261 ? (context_x11->drop_xid
262 ? context_x11->drop_xid
263 : GDK_WINDOW_XID (context->dest_window))
266 if ((!context->is_source == !is_source) &&
267 ((source_xid == None) || (context->source_window &&
268 (GDK_WINDOW_XID (context->source_window) == source_xid))) &&
269 ((dest_xid == None) || (context_dest_xid == dest_xid)))
272 tmp_list = tmp_list->next;
279 precache_target_list (GdkDragContext *context)
281 if (context->targets)
283 GPtrArray *targets = g_ptr_array_new ();
287 for (tmp_list = context->targets; tmp_list; tmp_list = tmp_list->next)
288 g_ptr_array_add (targets, gdk_atom_name (GDK_POINTER_TO_ATOM (tmp_list->data)));
290 _gdk_x11_precache_atoms (GDK_WINDOW_DISPLAY (context->source_window),
291 (const gchar **)targets->pdata,
294 for (i =0; i < targets->len; i++)
295 g_free (targets->pdata[i]);
297 g_ptr_array_free (targets, TRUE);
301 /* Utility functions */
304 free_cache_child (GdkCacheChild *child,
308 cairo_region_destroy (child->shape);
310 if (child->shape_selected && display)
312 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
314 XShapeSelectInput (display_x11->xdisplay, child->xid, 0);
321 gdk_window_cache_add (GdkWindowCache *cache,
329 GdkCacheChild *child = g_new (GdkCacheChild, 1);
334 child->width = width;
335 child->height = height;
336 child->mapped = mapped;
337 child->shape_selected = FALSE;
338 child->shape_valid = FALSE;
341 cache->children = g_list_prepend (cache->children, child);
342 g_hash_table_insert (cache->child_hash, GUINT_TO_POINTER (xid),
346 static GdkFilterReturn
347 gdk_window_cache_shape_filter (GdkXEvent *xev,
351 XEvent *xevent = (XEvent *)xev;
352 GdkWindowCache *cache = data;
354 GdkX11Display *display = GDK_X11_DISPLAY (gdk_screen_get_display (cache->screen));
356 if (display->have_shapes &&
357 xevent->type == display->shape_event_base + ShapeNotify)
359 XShapeEvent *xse = (XShapeEvent*)xevent;
362 node = g_hash_table_lookup (cache->child_hash,
363 GUINT_TO_POINTER (xse->window));
366 GdkCacheChild *child = node->data;
367 child->shape_valid = FALSE;
370 cairo_region_destroy (child->shape);
375 return GDK_FILTER_REMOVE;
378 return GDK_FILTER_CONTINUE;
381 static GdkFilterReturn
382 gdk_window_cache_filter (GdkXEvent *xev,
386 XEvent *xevent = (XEvent *)xev;
387 GdkWindowCache *cache = data;
389 switch (xevent->type)
391 case CirculateNotify:
393 case ConfigureNotify:
395 XConfigureEvent *xce = &xevent->xconfigure;
398 node = g_hash_table_lookup (cache->child_hash,
399 GUINT_TO_POINTER (xce->window));
402 GdkCacheChild *child = node->data;
405 child->width = xce->width;
406 child->height = xce->height;
407 if (xce->above == None && (node->next))
409 GList *last = g_list_last (cache->children);
410 cache->children = g_list_remove_link (cache->children, node);
417 GList *above_node = g_hash_table_lookup (cache->child_hash,
418 GUINT_TO_POINTER (xce->above));
419 if (above_node && node->next != above_node)
421 /* Put the window above (before in the list) above_node */
422 cache->children = g_list_remove_link (cache->children, node);
423 node->prev = above_node->prev;
425 node->prev->next = node;
427 cache->children = node;
428 node->next = above_node;
429 above_node->prev = node;
437 XCreateWindowEvent *xcwe = &xevent->xcreatewindow;
439 if (!g_hash_table_lookup (cache->child_hash,
440 GUINT_TO_POINTER (xcwe->window)))
441 gdk_window_cache_add (cache, xcwe->window,
442 xcwe->x, xcwe->y, xcwe->width, xcwe->height,
448 XDestroyWindowEvent *xdwe = &xevent->xdestroywindow;
451 node = g_hash_table_lookup (cache->child_hash,
452 GUINT_TO_POINTER (xdwe->window));
455 GdkCacheChild *child = node->data;
457 g_hash_table_remove (cache->child_hash,
458 GUINT_TO_POINTER (xdwe->window));
459 cache->children = g_list_remove_link (cache->children, node);
460 /* window is destroyed, no need to disable ShapeNotify */
461 free_cache_child (child, NULL);
462 g_list_free_1 (node);
468 XMapEvent *xme = &xevent->xmap;
471 node = g_hash_table_lookup (cache->child_hash,
472 GUINT_TO_POINTER (xme->window));
475 GdkCacheChild *child = node->data;
476 child->mapped = TRUE;
484 XMapEvent *xume = &xevent->xmap;
487 node = g_hash_table_lookup (cache->child_hash,
488 GUINT_TO_POINTER (xume->window));
491 GdkCacheChild *child = node->data;
492 child->mapped = FALSE;
497 return GDK_FILTER_CONTINUE;
499 return GDK_FILTER_REMOVE;
502 static GdkWindowCache *
503 gdk_window_cache_new (GdkScreen *screen)
505 XWindowAttributes xwa;
506 Display *xdisplay = GDK_SCREEN_XDISPLAY (screen);
507 GdkWindow *root_window = gdk_screen_get_root_window (screen);
508 GdkChildInfoX11 *children;
510 #ifdef HAVE_XCOMPOSITE
514 GdkWindowCache *result = g_new (GdkWindowCache, 1);
516 result->children = NULL;
517 result->child_hash = g_hash_table_new (g_direct_hash, NULL);
518 result->screen = screen;
519 result->ref_count = 1;
521 XGetWindowAttributes (xdisplay, GDK_WINDOW_XID (root_window), &xwa);
522 result->old_event_mask = xwa.your_event_mask;
524 if (G_UNLIKELY (!GDK_X11_DISPLAY (GDK_X11_SCREEN (screen)->display)->trusted_client))
526 GList *toplevel_windows, *list;
528 gint x, y, width, height;
530 toplevel_windows = gdk_screen_get_toplevel_windows (screen);
531 for (list = toplevel_windows; list; list = list->next)
533 window = GDK_WINDOW (list->data);
534 gdk_window_get_geometry (window, &x, &y, &width, &height);
535 gdk_window_cache_add (result, GDK_WINDOW_XID (window),
537 gdk_window_is_visible (window));
539 g_list_free (toplevel_windows);
543 XSelectInput (xdisplay, GDK_WINDOW_XID (root_window),
544 result->old_event_mask | SubstructureNotifyMask);
545 gdk_window_add_filter (root_window, gdk_window_cache_filter, result);
546 gdk_window_add_filter (NULL, gdk_window_cache_shape_filter, result);
548 if (!_gdk_x11_get_window_child_info (gdk_screen_get_display (screen),
549 GDK_WINDOW_XID (root_window),
551 &children, &nchildren))
554 for (i = 0; i < nchildren ; i++)
556 gdk_window_cache_add (result, children[i].window,
557 children[i].x, children[i].y, children[i].width, children[i].height,
558 children[i].is_mapped);
563 #ifdef HAVE_XCOMPOSITE
565 * Add the composite overlay window to the cache, as this can be a reasonable
566 * Xdnd proxy as well.
567 * This is only done when the screen is composited in order to avoid mapping
568 * the COW. We assume that the CM is using the COW (which is true for pretty
569 * much any CM currently in use).
571 if (gdk_screen_is_composited (screen))
573 cow = XCompositeGetOverlayWindow (xdisplay, GDK_WINDOW_XID (root_window));
574 gdk_window_cache_add (result, cow, 0, 0, gdk_screen_get_width (screen), gdk_screen_get_height (screen), TRUE);
575 XCompositeReleaseOverlayWindow (xdisplay, GDK_WINDOW_XID (root_window));
583 gdk_window_cache_destroy (GdkWindowCache *cache)
585 GdkWindow *root_window = gdk_screen_get_root_window (cache->screen);
588 XSelectInput (GDK_WINDOW_XDISPLAY (root_window),
589 GDK_WINDOW_XID (root_window),
590 cache->old_event_mask);
591 gdk_window_remove_filter (root_window, gdk_window_cache_filter, cache);
592 gdk_window_remove_filter (NULL, gdk_window_cache_shape_filter, cache);
594 display = gdk_screen_get_display (cache->screen);
596 gdk_x11_display_error_trap_push (display);
597 g_list_foreach (cache->children, (GFunc)free_cache_child, display);
598 gdk_x11_display_error_trap_pop_ignored (display);
600 g_list_free (cache->children);
601 g_hash_table_destroy (cache->child_hash);
606 static GdkWindowCache *
607 gdk_window_cache_ref (GdkWindowCache *cache)
609 cache->ref_count += 1;
615 gdk_window_cache_unref (GdkWindowCache *cache)
617 g_assert (cache->ref_count > 0);
619 cache->ref_count -= 1;
621 if (cache->ref_count == 0)
623 window_caches = g_slist_remove (window_caches, cache);
624 gdk_window_cache_destroy (cache);
629 gdk_window_cache_get (GdkScreen *screen)
632 GdkWindowCache *cache;
634 for (list = window_caches; list; list = list->next)
637 if (cache->screen == screen)
638 return gdk_window_cache_ref (cache);
641 cache = gdk_window_cache_new (screen);
643 window_caches = g_slist_prepend (window_caches, cache);
649 is_pointer_within_shape (GdkDisplay *display,
650 GdkCacheChild *child,
654 if (!child->shape_selected)
656 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
658 XShapeSelectInput (display_x11->xdisplay, child->xid, ShapeNotifyMask);
659 child->shape_selected = TRUE;
661 if (!child->shape_valid)
663 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
664 cairo_region_t *input_shape;
666 child->shape = _gdk_x11_xwindow_get_shape (display_x11->xdisplay,
667 child->xid, ShapeBounding);
669 input_shape = _gdk_x11_xwindow_get_shape (display_x11->xdisplay,
670 child->xid, ShapeInput);
671 if (child->shape && input_shape)
673 cairo_region_intersect (child->shape, input_shape);
674 cairo_region_destroy (input_shape);
676 else if (input_shape)
678 child->shape = input_shape;
682 child->shape_valid = TRUE;
685 return child->shape == NULL ||
686 cairo_region_contains_point (child->shape, x_pos, y_pos);
690 get_client_window_at_coords_recurse (GdkDisplay *display,
692 gboolean is_toplevel,
696 GdkChildInfoX11 *children;
697 unsigned int nchildren;
699 gboolean found_child = FALSE;
700 GdkChildInfoX11 child = { 0, };
701 gboolean has_wm_state = FALSE;
703 if (!_gdk_x11_get_window_child_info (display, win, TRUE,
704 is_toplevel? &has_wm_state : NULL,
705 &children, &nchildren))
715 for (i = nchildren - 1; (i >= 0) && !found_child; i--)
717 GdkChildInfoX11 *cur_child = &children[i];
719 if ((cur_child->is_mapped) && (cur_child->window_class == InputOutput) &&
720 (x >= cur_child->x) && (x < cur_child->x + cur_child->width) &&
721 (y >= cur_child->y) && (y < cur_child->y + cur_child->height))
734 if (child.has_wm_state)
737 return get_client_window_at_coords_recurse (display, child.window, FALSE, x, y);
744 get_client_window_at_coords (GdkWindowCache *cache,
750 Window retval = None;
753 display = gdk_screen_get_display (cache->screen);
755 gdk_x11_display_error_trap_push (display);
757 tmp_list = cache->children;
759 while (tmp_list && !retval)
761 GdkCacheChild *child = tmp_list->data;
763 if ((child->xid != ignore) && (child->mapped))
765 if ((x_root >= child->x) && (x_root < child->x + child->width) &&
766 (y_root >= child->y) && (y_root < child->y + child->height))
768 if (!is_pointer_within_shape (display, child,
772 tmp_list = tmp_list->next;
776 retval = get_client_window_at_coords_recurse (display,
784 tmp_list = tmp_list->next;
787 gdk_x11_display_error_trap_pop_ignored (display);
792 return GDK_WINDOW_XID (gdk_screen_get_root_window (cache->screen));
795 /*************************************************************
796 ***************************** MOTIF *************************
797 *************************************************************/
799 /* values used in the message type for Motif DND */
812 /* Values used to specify type of protocol to use */
816 XmDRAG_PREFER_PREREGISTER,
818 XmDRAG_PREFER_DYNAMIC,
820 XmDRAG_PREFER_RECEIVER
823 /* Operation codes */
831 /* Drop site status */
833 XmNO_DROP_SITE = 0x01,
834 XmDROP_SITE_INVALID = 0x02,
835 XmDROP_SITE_VALID = 0x03
838 /* completion status */
846 /* Byte swapping routines. The motif specification leaves it
847 * up to us to save a few bytes in the client messages
849 static gchar local_byte_order = '\0';
851 #ifdef G_ENABLE_DEBUG
853 print_target_list (GList *targets)
857 gchar *name = gdk_atom_name (GDK_POINTER_TO_ATOM (targets->data));
858 g_message ("\t%s", name);
860 targets = targets->next;
863 #endif /* G_ENABLE_DEBUG */
866 init_byte_order (void)
868 guint32 myint = 0x01020304;
869 local_byte_order = (*(gchar *)&myint == 1) ? 'B' : 'l';
873 card16_to_host (guint16 x, gchar byte_order)
875 if (byte_order == local_byte_order)
878 return (x << 8) | (x >> 8);
882 card32_to_host (guint32 x, gchar byte_order)
884 if (byte_order == local_byte_order)
887 return (x << 24) | ((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | (x >> 24);
890 /* Motif packs together fields of varying length into the
891 * client message. We can't rely on accessing these
892 * through data.s[], data.l[], etc, because on some architectures
893 * (i.e., Alpha) these won't be valid for format == 8.
896 #define MOTIF_XCLIENT_BYTE(xevent,i) \
897 (xevent)->xclient.data.b[i]
898 #define MOTIF_XCLIENT_SHORT(xevent,i) \
899 ((gint16 *)&((xevent)->xclient.data.b[0]))[i]
900 #define MOTIF_XCLIENT_LONG(xevent,i) \
901 ((gint32 *)&((xevent)->xclient.data.b[0]))[i]
903 #define MOTIF_UNPACK_BYTE(xevent,i) MOTIF_XCLIENT_BYTE(xevent,i)
904 #define MOTIF_UNPACK_SHORT(xevent,i) \
905 card16_to_host (MOTIF_XCLIENT_SHORT(xevent,i), MOTIF_XCLIENT_BYTE(xevent, 1))
906 #define MOTIF_UNPACK_LONG(xevent,i) \
907 card32_to_host (MOTIF_XCLIENT_LONG(xevent,i), MOTIF_XCLIENT_BYTE(xevent, 1))
909 /***** Dest side ***********/
911 /* Property placed on source windows */
912 typedef struct _MotifDragInitiatorInfo
915 guint8 protocol_version;
916 guint16 targets_index;
917 guint32 selection_atom;
918 } MotifDragInitiatorInfo;
920 /* Header for target table on the drag window */
921 typedef struct _MotifTargetTableHeader
924 guchar protocol_version;
927 } MotifTargetTableHeader;
929 /* Property placed on target windows */
930 typedef struct _MotifDragReceiverInfo
933 guint8 protocol_version;
934 guint8 protocol_style;
936 guint32 proxy_window;
937 guint16 num_drop_sites;
940 } MotifDragReceiverInfo;
942 /* Target table handling */
944 static GdkFilterReturn
945 motif_drag_window_filter (GdkXEvent *xevent,
949 XEvent *xev = (XEvent *)xevent;
950 GdkDisplay *display = GDK_WINDOW_DISPLAY (event->any.window);
951 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
953 switch (xev->xany.type)
956 display_x11->motif_drag_window = None;
957 display_x11->motif_drag_gdk_window = NULL;
960 if (display_x11->motif_target_lists &&
961 (xev->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_TARGETS")))
962 motif_read_target_table (display);
965 return GDK_FILTER_REMOVE;
969 motif_lookup_drag_window (GdkDisplay *display,
970 Display *lookup_xdisplay)
972 Window retval = None;
973 gulong bytes_after, nitems;
978 XGetWindowProperty (lookup_xdisplay, RootWindow (lookup_xdisplay, 0),
979 gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_WINDOW"),
981 XA_WINDOW, &type, &format, &nitems, &bytes_after,
984 if ((format == 32) && (nitems == 1) && (bytes_after == 0))
986 retval = *(Window *)data;
988 g_message ("Found drag window %#lx\n", GDK_X11_DISPLAY (display)->motif_drag_window));
997 /* Finds the window where global Motif drag information is stored.
998 * If it doesn't exist and 'create' is TRUE, create one.
1001 motif_find_drag_window (GdkDisplay *display,
1004 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1006 if (!display_x11->motif_drag_window)
1008 Atom motif_drag_window_atom = gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_WINDOW");
1009 display_x11->motif_drag_window = motif_lookup_drag_window (display, display_x11->xdisplay);
1011 if (!display_x11->motif_drag_window && create)
1013 /* Create a persistant window. (Copied from LessTif) */
1014 Display *persistant_xdisplay;
1015 XSetWindowAttributes attr;
1016 persistant_xdisplay = XOpenDisplay (gdk_display_get_name (display));
1017 XSetCloseDownMode (persistant_xdisplay, RetainPermanent);
1019 XGrabServer (persistant_xdisplay);
1021 display_x11->motif_drag_window = motif_lookup_drag_window (display, persistant_xdisplay);
1023 if (!display_x11->motif_drag_window)
1025 attr.override_redirect = True;
1026 attr.event_mask = PropertyChangeMask;
1028 display_x11->motif_drag_window =
1029 XCreateWindow (persistant_xdisplay,
1030 RootWindow (persistant_xdisplay, 0),
1031 -100, -100, 10, 10, 0, 0,
1032 InputOnly, (Visual *)CopyFromParent,
1033 (CWOverrideRedirect | CWEventMask), &attr);
1036 g_message ("Created drag window %#lx\n", display_x11->motif_drag_window));
1038 XChangeProperty (persistant_xdisplay,
1039 RootWindow (persistant_xdisplay, 0),
1040 motif_drag_window_atom, XA_WINDOW,
1041 32, PropModeReplace,
1042 (guchar *)&motif_drag_window_atom, 1);
1044 XUngrabServer (persistant_xdisplay);
1045 XCloseDisplay (persistant_xdisplay);
1048 /* There is a miniscule race condition here if the drag window
1049 * gets destroyed exactly now.
1051 if (display_x11->motif_drag_window)
1053 display_x11->motif_drag_gdk_window =
1054 gdk_x11_window_foreign_new_for_display (display, display_x11->motif_drag_window);
1055 gdk_window_add_filter (display_x11->motif_drag_gdk_window,
1056 motif_drag_window_filter,
1061 return display_x11->motif_drag_window;
1065 motif_read_target_table (GdkDisplay *display)
1067 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1068 gulong bytes_after, nitems;
1073 Atom motif_drag_targets_atom = gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_TARGETS");
1075 if (display_x11->motif_target_lists)
1077 for (i=0; i<display_x11->motif_n_target_lists; i++)
1078 g_list_free (display_x11->motif_target_lists[i]);
1080 g_free (display_x11->motif_target_lists);
1081 display_x11->motif_target_lists = NULL;
1082 display_x11->motif_n_target_lists = 0;
1085 if (motif_find_drag_window (display, FALSE))
1088 MotifTargetTableHeader *header = NULL;
1089 guchar *target_bytes = NULL;
1091 gboolean success = FALSE;
1093 gdk_x11_display_error_trap_push (display);
1094 XGetWindowProperty (display_x11->xdisplay,
1095 display_x11->motif_drag_window,
1096 motif_drag_targets_atom,
1097 0, (sizeof(MotifTargetTableHeader)+3)/4, FALSE,
1098 motif_drag_targets_atom,
1099 &type, &format, &nitems, &bytes_after,
1102 if (gdk_x11_display_error_trap_pop (display) ||
1103 (format != 8) || (nitems < sizeof (MotifTargetTableHeader)))
1106 header = (MotifTargetTableHeader *)data;
1108 header->n_lists = card16_to_host (header->n_lists, header->byte_order);
1109 header->total_size = card32_to_host (header->total_size, header->byte_order);
1111 gdk_x11_display_error_trap_push (display);
1112 XGetWindowProperty (display_x11->xdisplay,
1113 display_x11->motif_drag_window,
1114 motif_drag_targets_atom,
1115 (sizeof(MotifTargetTableHeader)+3)/4,
1116 (header->total_size + 3)/4 - (sizeof(MotifTargetTableHeader) + 3)/4,
1118 motif_drag_targets_atom, &type, &format, &nitems,
1119 &bytes_after, &target_bytes);
1121 if (gdk_x11_display_error_trap_pop (display) ||
1122 (format != 8) || (bytes_after != 0) ||
1123 (nitems != header->total_size - sizeof(MotifTargetTableHeader)))
1126 display_x11->motif_n_target_lists = header->n_lists;
1127 display_x11->motif_target_lists = g_new0 (GList *, display_x11->motif_n_target_lists);
1130 for (i=0; i<header->n_lists; i++)
1135 if (p + sizeof(guint16) - target_bytes > nitems)
1138 n_targets = card16_to_host (*(gushort *)p, header->byte_order);
1140 /* We need to make a copy of the targets, since it may
1143 targets = g_new (guint32, n_targets);
1144 memcpy (targets, p + sizeof(guint16), sizeof(guint32) * n_targets);
1146 p += sizeof(guint16) + n_targets * sizeof(guint32);
1147 if (p - target_bytes > nitems)
1150 for (j=0; j<n_targets; j++)
1151 display_x11->motif_target_lists[i] =
1152 g_list_prepend (display_x11->motif_target_lists[i],
1153 GUINT_TO_POINTER (card32_to_host (targets[j],
1154 header->byte_order)));
1156 display_x11->motif_target_lists[i] = g_list_reverse (display_x11->motif_target_lists[i]);
1166 XFree (target_bytes);
1170 if (display_x11->motif_target_lists)
1172 g_free (display_x11->motif_target_lists);
1173 display_x11->motif_target_lists = NULL;
1174 display_x11->motif_n_target_lists = 0;
1176 g_warning ("Error reading Motif target table\n");
1182 targets_sort_func (gconstpointer a, gconstpointer b)
1184 return (GPOINTER_TO_UINT (a) < GPOINTER_TO_UINT (b)) ?
1185 -1 : ((GPOINTER_TO_UINT (a) > GPOINTER_TO_UINT (b)) ? 1 : 0);
1188 /* Check if given (sorted) list is in the targets table */
1190 motif_target_table_check (GdkDisplay *display,
1193 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1194 GList *tmp_list1, *tmp_list2;
1197 for (i=0; i<display_x11->motif_n_target_lists; i++)
1199 tmp_list1 = display_x11->motif_target_lists[i];
1202 while (tmp_list1 && tmp_list2)
1204 if (tmp_list1->data != tmp_list2->data)
1207 tmp_list1 = tmp_list1->next;
1208 tmp_list2 = tmp_list2->next;
1210 if (!tmp_list1 && !tmp_list2) /* Found it */
1218 motif_add_to_target_table (GdkDisplay *display,
1219 GList *targets) /* targets is list of GdkAtom */
1221 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1222 GList *sorted = NULL;
1227 /* make a sorted copy of the list */
1230 Atom xatom = gdk_x11_atom_to_xatom_for_display (display, GDK_POINTER_TO_ATOM (targets->data));
1231 sorted = g_list_insert_sorted (sorted, GUINT_TO_POINTER (xatom), targets_sort_func);
1232 targets = targets->next;
1235 /* First check if it is there already */
1237 if (display_x11->motif_target_lists)
1238 index = motif_target_table_check (display, sorted);
1240 /* We need to grab the server while doing this, to ensure
1246 /* We need to make sure that it exists _before_ we grab the
1247 * server, since we can't open a new connection after we
1250 motif_find_drag_window (display, TRUE);
1252 gdk_x11_display_grab (display);
1253 motif_read_target_table (display);
1255 /* Check again, in case it was added in the meantime */
1256 if (display_x11->motif_target_lists)
1257 index = motif_target_table_check (display, sorted);
1261 guint32 total_size = 0;
1265 MotifTargetTableHeader *header;
1267 if (!display_x11->motif_target_lists)
1269 display_x11->motif_target_lists = g_new (GList *, 1);
1270 display_x11->motif_n_target_lists = 1;
1274 display_x11->motif_n_target_lists++;
1275 display_x11->motif_target_lists = g_realloc (display_x11->motif_target_lists,
1276 sizeof(GList *) * display_x11->motif_n_target_lists);
1278 display_x11->motif_target_lists[display_x11->motif_n_target_lists - 1] = sorted;
1280 index = display_x11->motif_n_target_lists - 1;
1282 total_size = sizeof (MotifTargetTableHeader);
1283 for (i = 0; i < display_x11->motif_n_target_lists ; i++)
1284 total_size += sizeof(guint16) + sizeof(guint32) * g_list_length (display_x11->motif_target_lists[i]);
1286 data = g_malloc (total_size);
1288 header = (MotifTargetTableHeader *)data;
1289 p = data + sizeof(MotifTargetTableHeader);
1291 header->byte_order = local_byte_order;
1292 header->protocol_version = 0;
1293 header->n_lists = display_x11->motif_n_target_lists;
1294 header->total_size = total_size;
1296 for (i = 0; i < display_x11->motif_n_target_lists ; i++)
1298 guint16 n_targets = g_list_length (display_x11->motif_target_lists[i]);
1299 guint32 *targets = g_new (guint32, n_targets);
1300 guint32 *p32 = targets;
1302 tmp_list = display_x11->motif_target_lists[i];
1305 *p32 = GPOINTER_TO_UINT (tmp_list->data);
1307 tmp_list = tmp_list->next;
1312 p += sizeof(guint16);
1314 memcpy (p, targets, n_targets * sizeof(guint32));
1317 p += sizeof(guint32) * n_targets;
1321 XChangeProperty (display_x11->xdisplay,
1322 display_x11->motif_drag_window,
1323 gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_TARGETS"),
1324 gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_TARGETS"),
1328 gdk_x11_display_ungrab (display);
1331 g_list_free (sorted);
1335 /* Translate flags */
1338 motif_dnd_translate_flags (GdkX11DragContext *context_x11,
1341 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
1342 guint recommended_op = flags & 0x000f;
1343 guint possible_ops = (flags & 0x0f0) >> 4;
1345 switch (recommended_op)
1348 context->suggested_action = GDK_ACTION_MOVE;
1351 context->suggested_action = GDK_ACTION_COPY;
1354 context->suggested_action = GDK_ACTION_LINK;
1357 context->suggested_action = GDK_ACTION_COPY;
1361 context->actions = 0;
1362 if (possible_ops & XmDROP_MOVE)
1363 context->actions |= GDK_ACTION_MOVE;
1364 if (possible_ops & XmDROP_COPY)
1365 context->actions |= GDK_ACTION_COPY;
1366 if (possible_ops & XmDROP_LINK)
1367 context->actions |= GDK_ACTION_LINK;
1371 motif_dnd_get_flags (GdkDragContext *context)
1375 switch (context->suggested_action)
1377 case GDK_ACTION_MOVE:
1378 flags = XmDROP_MOVE;
1380 case GDK_ACTION_COPY:
1381 flags = XmDROP_COPY;
1383 case GDK_ACTION_LINK:
1384 flags = XmDROP_LINK;
1387 flags = XmDROP_NOOP;
1391 if (context->actions & GDK_ACTION_MOVE)
1392 flags |= XmDROP_MOVE << 8;
1393 if (context->actions & GDK_ACTION_COPY)
1394 flags |= XmDROP_COPY << 8;
1395 if (context->actions & GDK_ACTION_LINK)
1396 flags |= XmDROP_LINK << 8;
1404 motif_set_targets (GdkX11DragContext *context_x11)
1406 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
1407 MotifDragInitiatorInfo info;
1409 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
1411 info.byte_order = local_byte_order;
1412 info.protocol_version = 0;
1413 info.targets_index = motif_add_to_target_table (display, context->targets);
1418 g_snprintf (buf, 20, "_GDK_SELECTION_%d", i);
1420 context_x11->motif_selection = gdk_x11_get_xatom_by_name_for_display (display, buf);
1421 if (!XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), context_x11->motif_selection))
1425 info.selection_atom = context_x11->motif_selection;
1427 XChangeProperty (GDK_WINDOW_XDISPLAY (context->source_window),
1428 GDK_WINDOW_XID (context->source_window),
1429 context_x11->motif_selection,
1430 gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_INITIATOR_INFO"),
1432 (guchar *)&info, sizeof (info));
1434 context_x11->motif_targets_set = 1;
1438 motif_check_dest (GdkDisplay *display,
1441 gboolean retval = FALSE;
1443 MotifDragReceiverInfo *info;
1446 unsigned long nitems, after;
1447 Atom motif_drag_receiver_info_atom = gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_RECEIVER_INFO");
1449 gdk_x11_display_error_trap_push (display);
1450 XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), win,
1451 motif_drag_receiver_info_atom,
1452 0, (sizeof(*info)+3)/4, False, AnyPropertyType,
1453 &type, &format, &nitems, &after,
1456 if (gdk_x11_display_error_trap_pop (display) == 0)
1460 info = (MotifDragReceiverInfo *)data;
1462 if ((format == 8) && (nitems == sizeof(*info)))
1464 if ((info->protocol_version == 0) &&
1465 ((info->protocol_style == XmDRAG_PREFER_PREREGISTER) ||
1466 (info->protocol_style == XmDRAG_PREFER_DYNAMIC) ||
1467 (info->protocol_style == XmDRAG_DYNAMIC)))
1473 g_warning ("Invalid Motif drag receiver property on window %ld\n", win));
1480 return retval ? win : None;
1484 motif_send_enter (GdkX11DragContext *context_x11,
1487 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
1488 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
1491 if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1492 return; /* Motif Dnd requires getting properties on the root window */
1494 xev.xclient.type = ClientMessage;
1495 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_AND_DROP_MESSAGE");
1496 xev.xclient.format = 8;
1497 xev.xclient.window = GDK_WINDOW_XID (context->dest_window);
1499 MOTIF_XCLIENT_BYTE (&xev, 0) = XmTOP_LEVEL_ENTER;
1500 MOTIF_XCLIENT_BYTE (&xev, 1) = local_byte_order;
1501 MOTIF_XCLIENT_SHORT (&xev, 1) = 0;
1502 MOTIF_XCLIENT_LONG (&xev, 1) = time;
1503 MOTIF_XCLIENT_LONG (&xev, 2) = GDK_WINDOW_XID (context->source_window);
1505 if (!context_x11->motif_targets_set)
1506 motif_set_targets (context_x11);
1508 MOTIF_XCLIENT_LONG (&xev, 3) = context_x11->motif_selection;
1509 MOTIF_XCLIENT_LONG (&xev, 4) = 0;
1511 if (!_gdk_x11_display_send_xevent (display,
1512 GDK_WINDOW_XID (context->dest_window),
1515 g_message ("Send event to %lx failed",
1516 GDK_WINDOW_XID (context->dest_window)));
1520 motif_send_leave (GdkX11DragContext *context_x11,
1523 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
1524 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
1527 xev.xclient.type = ClientMessage;
1528 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_AND_DROP_MESSAGE");
1529 xev.xclient.format = 8;
1530 xev.xclient.window = GDK_WINDOW_XID (context->dest_window);
1532 MOTIF_XCLIENT_BYTE (&xev, 0) = XmTOP_LEVEL_LEAVE;
1533 MOTIF_XCLIENT_BYTE (&xev, 1) = local_byte_order;
1534 MOTIF_XCLIENT_SHORT (&xev, 1) = 0;
1535 MOTIF_XCLIENT_LONG (&xev, 1) = time;
1536 MOTIF_XCLIENT_LONG (&xev, 2) = 0;
1537 MOTIF_XCLIENT_LONG (&xev, 3) = 0;
1538 MOTIF_XCLIENT_LONG (&xev, 4) = 0;
1540 if (!_gdk_x11_display_send_xevent (display,
1541 GDK_WINDOW_XID (context->dest_window),
1544 g_message ("Send event to %lx failed",
1545 GDK_WINDOW_XID (context->dest_window)));
1549 motif_send_motion (GdkX11DragContext *context_x11,
1552 GdkDragAction action,
1555 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
1556 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
1560 xev.xclient.type = ClientMessage;
1561 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_AND_DROP_MESSAGE");
1562 xev.xclient.format = 8;
1563 xev.xclient.window = GDK_WINDOW_XID (context->dest_window);
1565 MOTIF_XCLIENT_BYTE (&xev, 1) = local_byte_order;
1566 MOTIF_XCLIENT_SHORT (&xev, 1) = motif_dnd_get_flags (context);
1567 MOTIF_XCLIENT_LONG (&xev, 1) = time;
1568 MOTIF_XCLIENT_LONG (&xev, 3) = 0;
1569 MOTIF_XCLIENT_LONG (&xev, 4) = 0;
1571 if ((context->suggested_action != context_x11->old_action) ||
1572 (context->actions != context_x11->old_actions))
1574 MOTIF_XCLIENT_BYTE (&xev, 0) = XmOPERATION_CHANGED;
1576 /* context_x11->drag_status = GDK_DRAG_STATUS_ACTION_WAIT; */
1581 MOTIF_XCLIENT_BYTE (&xev, 0) = XmDRAG_MOTION;
1583 MOTIF_XCLIENT_SHORT (&xev, 4) = x_root;
1584 MOTIF_XCLIENT_SHORT (&xev, 5) = y_root;
1586 context_x11->drag_status = GDK_DRAG_STATUS_MOTION_WAIT;
1590 if (!_gdk_x11_display_send_xevent (display,
1591 GDK_WINDOW_XID (context->dest_window),
1594 g_message ("Send event to %lx failed",
1595 GDK_WINDOW_XID (context->dest_window)));
1601 motif_send_drop (GdkX11DragContext *context_x11,
1604 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
1605 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
1608 xev.xclient.type = ClientMessage;
1609 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_AND_DROP_MESSAGE");
1610 xev.xclient.format = 8;
1611 xev.xclient.window = GDK_WINDOW_XID (context->dest_window);
1613 MOTIF_XCLIENT_BYTE (&xev, 0) = XmDROP_START;
1614 MOTIF_XCLIENT_BYTE (&xev, 1) = local_byte_order;
1615 MOTIF_XCLIENT_SHORT (&xev, 1) = motif_dnd_get_flags (context);
1616 MOTIF_XCLIENT_LONG (&xev, 1) = time;
1618 MOTIF_XCLIENT_SHORT (&xev, 4) = context_x11->last_x;
1619 MOTIF_XCLIENT_SHORT (&xev, 5) = context_x11->last_y;
1621 MOTIF_XCLIENT_LONG (&xev, 3) = context_x11->motif_selection;
1622 MOTIF_XCLIENT_LONG (&xev, 4) = GDK_WINDOW_XID (context->source_window);
1624 if (!_gdk_x11_display_send_xevent (display,
1625 GDK_WINDOW_XID (context->dest_window),
1628 g_message ("Send event to %lx failed",
1629 GDK_WINDOW_XID (context->dest_window)));
1635 motif_read_initiator_info (GdkDisplay *display,
1636 Window source_window,
1647 MotifDragInitiatorInfo *initiator_info;
1649 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1651 gdk_x11_display_error_trap_push (display);
1652 XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), source_window, atom,
1653 0, sizeof(*initiator_info), FALSE,
1654 gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_INITIATOR_INFO"),
1655 &type, &format, &nitems, &bytes_after,
1658 if (gdk_x11_display_error_trap_pop (display) ||
1659 (format != 8) || (nitems != sizeof (MotifDragInitiatorInfo)) ||
1662 g_warning ("Error reading initiator info\n");
1666 initiator_info = (MotifDragInitiatorInfo *)data;
1668 motif_read_target_table (display);
1670 initiator_info->targets_index =
1671 card16_to_host (initiator_info->targets_index, initiator_info->byte_order);
1672 initiator_info->selection_atom =
1673 card32_to_host (initiator_info->selection_atom, initiator_info->byte_order);
1675 if (initiator_info->targets_index >= display_x11->motif_n_target_lists)
1677 g_warning ("Invalid target index in TOP_LEVEL_ENTER MESSAGE");
1678 XFree (initiator_info);
1682 tmp_list = g_list_last (display_x11->motif_target_lists[initiator_info->targets_index]);
1687 GdkAtom atom = gdk_x11_xatom_to_atom_for_display (display, GPOINTER_TO_UINT (tmp_list->data));
1688 *targets = g_list_prepend (*targets, GDK_ATOM_TO_POINTER (atom));
1689 tmp_list = tmp_list->prev;
1692 #ifdef G_ENABLE_DEBUG
1693 if (_gdk_debug_flags & GDK_DEBUG_DND)
1694 print_target_list (*targets);
1695 #endif /* G_ENABLE_DEBUG */
1697 *selection = initiator_info->selection_atom;
1699 XFree (initiator_info);
1704 static GdkDragContext *
1705 motif_drag_context_new (GdkWindow *dest_window,
1707 guint32 source_window,
1710 GdkX11DragContext *context_x11;
1711 GdkDragContext *context;
1712 GdkDisplay *display = GDK_WINDOW_DISPLAY (dest_window);
1713 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1715 /* FIXME, current_dest_drag really shouldn't be NULL'd
1716 * if we error below.
1718 if (display_x11->current_dest_drag != NULL)
1720 if (timestamp >= display_x11->current_dest_drag->start_time)
1722 g_object_unref (display_x11->current_dest_drag);
1723 display_x11->current_dest_drag = NULL;
1729 context_x11 = g_object_new (GDK_TYPE_X11_DRAG_CONTEXT, NULL);
1730 context = GDK_DRAG_CONTEXT (context_x11);
1732 context->protocol = GDK_DRAG_PROTO_MOTIF;
1733 context->is_source = FALSE;
1735 context->source_window = gdk_x11_window_lookup_for_display (display, source_window);
1736 if (context->source_window)
1737 g_object_ref (context->source_window);
1740 context->source_window = gdk_x11_window_foreign_new_for_display (display, source_window);
1741 if (!context->source_window)
1743 g_object_unref (context_x11);
1748 context->dest_window = dest_window;
1749 g_object_ref (dest_window);
1750 context->start_time = timestamp;
1752 if (!motif_read_initiator_info (GDK_WINDOW_DISPLAY (dest_window),
1756 &context_x11->motif_selection))
1758 g_object_unref (context_x11);
1766 * The MOTIF drag protocol has no real provisions for distinguishing
1767 * multiple simultaneous drops. If the sources grab the pointer
1768 * when doing drags, that shouldn't happen, in any case. If it
1769 * does, we can't do much except hope for the best.
1772 static GdkFilterReturn
1773 motif_top_level_enter (GdkEvent *event,
1776 guint32 source_window,
1779 GdkX11Display *display_x11 = GDK_X11_DISPLAY (GDK_WINDOW_DISPLAY (event->any.window));
1780 GdkDragContext *new_context;
1782 GDK_NOTE(DND, g_message ("Motif DND top level enter: flags: %#4x time: %d source_widow: %#4x atom: %d",
1783 flags, timestamp, source_window, atom));
1785 new_context = motif_drag_context_new (event->any.window, timestamp, source_window, atom);
1787 return GDK_FILTER_REMOVE;
1789 event->dnd.type = GDK_DRAG_ENTER;
1790 event->dnd.context = new_context;
1791 g_object_ref (new_context);
1793 display_x11->current_dest_drag = new_context;
1795 return GDK_FILTER_TRANSLATE;
1798 static GdkFilterReturn
1799 motif_top_level_leave (GdkEvent *event,
1803 GdkX11Display *display_x11 = GDK_X11_DISPLAY (GDK_WINDOW_DISPLAY (event->any.window));
1805 GDK_NOTE(DND, g_message ("Motif DND top level leave: flags: %#4x time: %d",
1808 if ((display_x11->current_dest_drag != NULL) &&
1809 (display_x11->current_dest_drag->protocol == GDK_DRAG_PROTO_MOTIF) &&
1810 (timestamp >= display_x11->current_dest_drag->start_time))
1812 event->dnd.type = GDK_DRAG_LEAVE;
1813 /* Pass ownership of context to the event */
1814 event->dnd.context = display_x11->current_dest_drag;
1816 display_x11->current_dest_drag = NULL;
1818 return GDK_FILTER_TRANSLATE;
1821 return GDK_FILTER_REMOVE;
1824 static GdkFilterReturn
1825 motif_motion (GdkEvent *event,
1831 GdkX11DragContext *context_x11;
1832 GdkX11Display *display_x11 = GDK_X11_DISPLAY (GDK_WINDOW_DISPLAY (event->any.window));
1834 GDK_NOTE(DND, g_message ("Motif DND motion: flags: %#4x time: %d (%d, %d)",
1835 flags, timestamp, x_root, y_root));
1837 if ((display_x11->current_dest_drag != NULL) &&
1838 (display_x11->current_dest_drag->protocol == GDK_DRAG_PROTO_MOTIF) &&
1839 (timestamp >= display_x11->current_dest_drag->start_time))
1841 context_x11 = GDK_X11_DRAG_CONTEXT (display_x11->current_dest_drag);
1843 event->dnd.type = GDK_DRAG_MOTION;
1844 event->dnd.context = display_x11->current_dest_drag;
1845 g_object_ref (display_x11->current_dest_drag);
1847 event->dnd.time = timestamp;
1849 motif_dnd_translate_flags (context_x11, flags);
1851 event->dnd.x_root = x_root;
1852 event->dnd.y_root = y_root;
1854 context_x11->last_x = x_root;
1855 context_x11->last_y = y_root;
1857 context_x11->drag_status = GDK_DRAG_STATUS_MOTION_WAIT;
1859 return GDK_FILTER_TRANSLATE;
1862 return GDK_FILTER_REMOVE;
1865 static GdkFilterReturn
1866 motif_operation_changed (GdkEvent *event,
1870 GdkX11DragContext *context_x11;
1871 GdkX11Display *display_x11 = GDK_X11_DISPLAY (GDK_WINDOW_DISPLAY (event->any.window));
1872 GDK_NOTE(DND, g_message ("Motif DND operation changed: flags: %#4x time: %d",
1875 if ((display_x11->current_dest_drag != NULL) &&
1876 (display_x11->current_dest_drag->protocol == GDK_DRAG_PROTO_MOTIF) &&
1877 (timestamp >= display_x11->current_dest_drag->start_time))
1879 event->dnd.type = GDK_DRAG_MOTION;
1880 event->dnd.send_event = FALSE;
1881 event->dnd.context = display_x11->current_dest_drag;
1882 g_object_ref (display_x11->current_dest_drag);
1884 event->dnd.time = timestamp;
1885 context_x11 = GDK_X11_DRAG_CONTEXT (display_x11->current_dest_drag);
1887 motif_dnd_translate_flags (context_x11, flags);
1889 event->dnd.x_root = context_x11->last_x;
1890 event->dnd.y_root = context_x11->last_y;
1892 context_x11->drag_status = GDK_DRAG_STATUS_ACTION_WAIT;
1894 return GDK_FILTER_TRANSLATE;
1897 return GDK_FILTER_REMOVE;
1900 static GdkFilterReturn
1901 motif_drop_start (GdkEvent *event,
1904 guint32 source_window,
1909 GdkDragContext *new_context;
1910 GdkX11Display *display_x11 = GDK_X11_DISPLAY (GDK_WINDOW_DISPLAY (event->any.window));
1912 GDK_NOTE(DND, g_message ("Motif DND drop start: flags: %#4x time: %d (%d, %d) source_widow: %#4x atom: %d",
1913 flags, timestamp, x_root, y_root, source_window, atom));
1915 new_context = motif_drag_context_new (event->any.window, timestamp, source_window, atom);
1917 return GDK_FILTER_REMOVE;
1919 motif_dnd_translate_flags (GDK_X11_DRAG_CONTEXT (new_context), flags);
1921 event->dnd.type = GDK_DROP_START;
1922 event->dnd.context = new_context;
1923 event->dnd.time = timestamp;
1924 event->dnd.x_root = x_root;
1925 event->dnd.y_root = y_root;
1927 gdk_x11_window_set_user_time (event->any.window, timestamp);
1929 g_object_ref (new_context);
1930 display_x11->current_dest_drag = new_context;
1932 return GDK_FILTER_TRANSLATE;
1935 static GdkFilterReturn
1936 motif_drag_status (GdkEvent *event,
1940 GdkDragContext *context;
1941 GdkDisplay *display;
1944 g_message ("Motif status message: flags %x", flags));
1946 display = gdk_window_get_display (event->any.window);
1948 return GDK_FILTER_REMOVE;
1950 context = gdk_drag_context_find (display, TRUE, GDK_WINDOW_XID (event->any.window), None);
1954 GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
1955 if ((context_x11->drag_status == GDK_DRAG_STATUS_MOTION_WAIT) ||
1956 (context_x11->drag_status == GDK_DRAG_STATUS_ACTION_WAIT))
1957 context_x11->drag_status = GDK_DRAG_STATUS_DRAG;
1959 event->dnd.type = GDK_DRAG_STATUS;
1960 event->dnd.send_event = FALSE;
1961 event->dnd.context = context;
1962 g_object_ref (context);
1964 event->dnd.time = timestamp;
1966 if ((flags & 0x00f0) >> 4 == XmDROP_SITE_VALID)
1968 switch (flags & 0x000f)
1971 context->action = 0;
1974 context->action = GDK_ACTION_MOVE;
1977 context->action = GDK_ACTION_COPY;
1980 context->action = GDK_ACTION_LINK;
1985 context->action = 0;
1987 return GDK_FILTER_TRANSLATE;
1989 return GDK_FILTER_REMOVE;
1992 static GdkFilterReturn
1993 motif_dnd_filter (GdkXEvent *xev,
1997 XEvent *xevent = (XEvent *)xev;
2002 guint32 source_window;
2004 gint16 x_root, y_root;
2007 if (!event->any.window ||
2008 gdk_window_get_window_type (event->any.window) == GDK_WINDOW_FOREIGN)
2009 return GDK_FILTER_CONTINUE; /* Not for us */
2011 /* First read some fields common to all Motif DND messages */
2012 reason = MOTIF_UNPACK_BYTE (xevent, 0);
2013 flags = MOTIF_UNPACK_SHORT (xevent, 1);
2014 timestamp = MOTIF_UNPACK_LONG (xevent, 1);
2016 is_reply = ((reason & 0x80) != 0);
2018 switch (reason & 0x7f)
2020 case XmTOP_LEVEL_ENTER:
2021 source_window = MOTIF_UNPACK_LONG (xevent, 2);
2022 atom = MOTIF_UNPACK_LONG (xevent, 3);
2023 return motif_top_level_enter (event, flags, timestamp, source_window, atom);
2024 case XmTOP_LEVEL_LEAVE:
2025 return motif_top_level_leave (event, flags, timestamp);
2028 x_root = MOTIF_UNPACK_SHORT (xevent, 4);
2029 y_root = MOTIF_UNPACK_SHORT (xevent, 5);
2032 return motif_motion (event, flags, timestamp, x_root, y_root);
2034 return motif_drag_status (event, flags, timestamp);
2036 case XmDROP_SITE_ENTER:
2037 return motif_drag_status (event, flags, timestamp);
2039 case XmDROP_SITE_LEAVE:
2040 return motif_drag_status (event,
2041 XmNO_DROP_SITE << 8 | XmDROP_NOOP,
2044 x_root = MOTIF_UNPACK_SHORT (xevent, 4);
2045 y_root = MOTIF_UNPACK_SHORT (xevent, 5);
2046 atom = MOTIF_UNPACK_LONG (xevent, 3);
2047 source_window = MOTIF_UNPACK_LONG (xevent, 4);
2050 return motif_drop_start (event, flags, timestamp, source_window, atom, x_root, y_root);
2053 case XmOPERATION_CHANGED:
2055 return motif_operation_changed (event, flags, timestamp);
2057 return motif_drag_status (event, flags, timestamp);
2060 /* To the best of my knowledge, these next two messages are
2061 * not part of the protocol, though they are defined in
2065 case XmDRAG_DROP_FINISH:
2069 return GDK_FILTER_REMOVE;
2072 /*************************************************************
2073 ***************************** XDND **************************
2074 *************************************************************/
2076 /* Utility functions */
2081 GdkDragAction action;
2082 } xdnd_actions_table[] = {
2083 { "XdndActionCopy", None, GDK_ACTION_COPY },
2084 { "XdndActionMove", None, GDK_ACTION_MOVE },
2085 { "XdndActionLink", None, GDK_ACTION_LINK },
2086 { "XdndActionAsk", None, GDK_ACTION_ASK },
2087 { "XdndActionPrivate", None, GDK_ACTION_COPY },
2090 static const gint xdnd_n_actions = G_N_ELEMENTS (xdnd_actions_table);
2091 static gboolean xdnd_actions_initialized = FALSE;
2094 xdnd_initialize_actions (void)
2098 xdnd_actions_initialized = TRUE;
2099 for (i = 0; i < xdnd_n_actions; i++)
2100 xdnd_actions_table[i].atom = gdk_atom_intern_static_string (xdnd_actions_table[i].name);
2103 static GdkDragAction
2104 xdnd_action_from_atom (GdkDisplay *display,
2113 atom = gdk_x11_xatom_to_atom_for_display (display, xatom);
2115 if (!xdnd_actions_initialized)
2116 xdnd_initialize_actions();
2118 for (i = 0; i < xdnd_n_actions; i++)
2119 if (atom == xdnd_actions_table[i].atom)
2120 return xdnd_actions_table[i].action;
2126 xdnd_action_to_atom (GdkDisplay *display,
2127 GdkDragAction action)
2131 if (!xdnd_actions_initialized)
2132 xdnd_initialize_actions();
2134 for (i = 0; i < xdnd_n_actions; i++)
2135 if (action == xdnd_actions_table[i].action)
2136 return gdk_x11_atom_to_xatom_for_display (display, xdnd_actions_table[i].atom);
2143 static GdkFilterReturn
2144 xdnd_status_filter (GdkXEvent *xev,
2148 GdkDisplay *display;
2149 XEvent *xevent = (XEvent *)xev;
2150 guint32 dest_window = xevent->xclient.data.l[0];
2151 guint32 flags = xevent->xclient.data.l[1];
2152 Atom action = xevent->xclient.data.l[4];
2153 GdkDragContext *context;
2155 if (!event->any.window ||
2156 gdk_window_get_window_type (event->any.window) == GDK_WINDOW_FOREIGN)
2157 return GDK_FILTER_CONTINUE; /* Not for us */
2160 g_message ("XdndStatus: dest_window: %#x action: %ld",
2161 dest_window, action));
2163 display = gdk_window_get_display (event->any.window);
2164 context = gdk_drag_context_find (display, TRUE, xevent->xclient.window, dest_window);
2168 GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
2169 if (context_x11->drag_status == GDK_DRAG_STATUS_MOTION_WAIT)
2170 context_x11->drag_status = GDK_DRAG_STATUS_DRAG;
2172 event->dnd.send_event = FALSE;
2173 event->dnd.type = GDK_DRAG_STATUS;
2174 event->dnd.context = context;
2175 gdk_event_set_device (event, gdk_drag_context_get_device (context));
2176 g_object_ref (context);
2178 event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
2179 if (!(action != 0) != !(flags & 1))
2182 g_warning ("Received status event with flags not corresponding to action!\n"));
2186 context->action = xdnd_action_from_atom (display, action);
2188 return GDK_FILTER_TRANSLATE;
2191 return GDK_FILTER_REMOVE;
2194 static GdkFilterReturn
2195 xdnd_finished_filter (GdkXEvent *xev,
2199 GdkDisplay *display;
2200 XEvent *xevent = (XEvent *)xev;
2201 guint32 dest_window = xevent->xclient.data.l[0];
2202 GdkDragContext *context;
2203 GdkX11DragContext *context_x11;
2205 if (!event->any.window ||
2206 gdk_window_get_window_type (event->any.window) == GDK_WINDOW_FOREIGN)
2207 return GDK_FILTER_CONTINUE; /* Not for us */
2210 g_message ("XdndFinished: dest_window: %#x", dest_window));
2212 display = gdk_window_get_display (event->any.window);
2213 context = gdk_drag_context_find (display, TRUE, xevent->xclient.window, dest_window);
2217 context_x11 = GDK_X11_DRAG_CONTEXT (context);
2218 if (context_x11->version == 5)
2219 context_x11->drop_failed = xevent->xclient.data.l[1] == 0;
2221 event->dnd.type = GDK_DROP_FINISHED;
2222 event->dnd.context = context;
2223 gdk_event_set_device (event, gdk_drag_context_get_device (context));
2224 g_object_ref (context);
2226 event->dnd.time = GDK_CURRENT_TIME; /* FIXME? */
2228 return GDK_FILTER_TRANSLATE;
2231 return GDK_FILTER_REMOVE;
2235 xdnd_set_targets (GdkX11DragContext *context_x11)
2237 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2239 GList *tmp_list = context->targets;
2241 gint n_atoms = g_list_length (context->targets);
2242 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
2244 atomlist = g_new (Atom, n_atoms);
2248 atomlist[i] = gdk_x11_atom_to_xatom_for_display (display, GDK_POINTER_TO_ATOM (tmp_list->data));
2249 tmp_list = tmp_list->next;
2253 XChangeProperty (GDK_WINDOW_XDISPLAY (context->source_window),
2254 GDK_WINDOW_XID (context->source_window),
2255 gdk_x11_get_xatom_by_name_for_display (display, "XdndTypeList"),
2256 XA_ATOM, 32, PropModeReplace,
2257 (guchar *)atomlist, n_atoms);
2261 context_x11->xdnd_targets_set = 1;
2265 xdnd_set_actions (GdkX11DragContext *context_x11)
2267 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2272 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
2274 if (!xdnd_actions_initialized)
2275 xdnd_initialize_actions();
2277 actions = context->actions;
2279 for (i = 0; i < xdnd_n_actions; i++)
2281 if (actions & xdnd_actions_table[i].action)
2283 actions &= ~xdnd_actions_table[i].action;
2288 atomlist = g_new (Atom, n_atoms);
2290 actions = context->actions;
2292 for (i = 0; i < xdnd_n_actions; i++)
2294 if (actions & xdnd_actions_table[i].action)
2296 actions &= ~xdnd_actions_table[i].action;
2297 atomlist[n_atoms] = gdk_x11_atom_to_xatom_for_display (display, xdnd_actions_table[i].atom);
2302 XChangeProperty (GDK_WINDOW_XDISPLAY (context->source_window),
2303 GDK_WINDOW_XID (context->source_window),
2304 gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList"),
2305 XA_ATOM, 32, PropModeReplace,
2306 (guchar *)atomlist, n_atoms);
2310 context_x11->xdnd_actions_set = TRUE;
2311 context_x11->xdnd_actions = context->actions;
2315 send_client_message_async_cb (Window window,
2319 GdkDragContext *context = data;
2321 g_message ("Got async callback for #%lx, success = %d",
2324 /* On failure, we immediately continue with the protocol
2325 * so we don't end up blocking for a timeout
2328 context->dest_window &&
2329 window == GDK_WINDOW_XID (context->dest_window))
2331 GdkEvent *temp_event;
2332 GdkX11DragContext *context_x11 = data;
2334 g_object_unref (context->dest_window);
2335 context->dest_window = NULL;
2336 context->action = 0;
2338 context_x11->drag_status = GDK_DRAG_STATUS_DRAG;
2340 temp_event = gdk_event_new (GDK_DRAG_STATUS);
2341 temp_event->dnd.window = g_object_ref (context->source_window);
2342 temp_event->dnd.send_event = TRUE;
2343 temp_event->dnd.context = g_object_ref (context);
2344 temp_event->dnd.time = GDK_CURRENT_TIME;
2345 gdk_event_set_device (temp_event, gdk_drag_context_get_device (context));
2347 gdk_event_put (temp_event);
2349 gdk_event_free (temp_event);
2352 g_object_unref (context);
2357 gdk_drag_context_get_display (GdkDragContext *context)
2359 if (context->source_window)
2360 return GDK_WINDOW_DISPLAY (context->source_window);
2361 else if (context->dest_window)
2362 return GDK_WINDOW_DISPLAY (context->dest_window);
2364 g_assert_not_reached ();
2369 send_client_message_async (GdkDragContext *context,
2373 XClientMessageEvent *event_send)
2375 GdkDisplay *display = gdk_drag_context_get_display (context);
2377 g_object_ref (context);
2379 _gdk_x11_send_client_message_async (display, window,
2380 propagate, event_mask, event_send,
2381 send_client_message_async_cb, context);
2385 xdnd_send_xevent (GdkX11DragContext *context_x11,
2390 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2391 GdkDisplay *display = gdk_drag_context_get_display (context);
2395 g_assert (event_send->xany.type == ClientMessage);
2397 /* We short-circuit messages to ourselves */
2398 if (gdk_window_get_window_type (window) != GDK_WINDOW_FOREIGN)
2402 for (i = 0; i < G_N_ELEMENTS (xdnd_filters); i++)
2404 if (gdk_x11_get_xatom_by_name_for_display (display, xdnd_filters[i].atom_name) ==
2405 event_send->xclient.message_type)
2407 GdkEvent *temp_event;
2409 temp_event = gdk_event_new (GDK_NOTHING);
2410 temp_event->any.window = g_object_ref (window);
2412 if ((*xdnd_filters[i].func) (event_send, temp_event, NULL) == GDK_FILTER_TRANSLATE)
2414 gdk_event_put (temp_event);
2415 gdk_event_free (temp_event);
2423 xwindow = GDK_WINDOW_XID (window);
2425 if (_gdk_x11_display_is_root_window (display, xwindow))
2426 event_mask = ButtonPressMask;
2430 send_client_message_async (context, xwindow, propagate, event_mask,
2431 &event_send->xclient);
2437 xdnd_send_enter (GdkX11DragContext *context_x11)
2439 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2440 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->dest_window);
2443 xev.xclient.type = ClientMessage;
2444 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndEnter");
2445 xev.xclient.format = 32;
2446 xev.xclient.window = context_x11->drop_xid
2447 ? context_x11->drop_xid
2448 : GDK_WINDOW_XID (context->dest_window);
2449 xev.xclient.data.l[0] = GDK_WINDOW_XID (context->source_window);
2450 xev.xclient.data.l[1] = (context_x11->version << 24); /* version */
2451 xev.xclient.data.l[2] = 0;
2452 xev.xclient.data.l[3] = 0;
2453 xev.xclient.data.l[4] = 0;
2456 g_message ("Sending enter source window %#lx XDND protocol version %d\n",
2457 GDK_WINDOW_XID (context->source_window), context_x11->version));
2458 if (g_list_length (context->targets) > 3)
2460 if (!context_x11->xdnd_targets_set)
2461 xdnd_set_targets (context_x11);
2462 xev.xclient.data.l[1] |= 1;
2466 GList *tmp_list = context->targets;
2471 xev.xclient.data.l[i] = gdk_x11_atom_to_xatom_for_display (display,
2472 GDK_POINTER_TO_ATOM (tmp_list->data));
2473 tmp_list = tmp_list->next;
2478 if (!xdnd_send_xevent (context_x11, context->dest_window, FALSE, &xev))
2481 g_message ("Send event to %lx failed",
2482 GDK_WINDOW_XID (context->dest_window)));
2483 g_object_unref (context->dest_window);
2484 context->dest_window = NULL;
2489 xdnd_send_leave (GdkX11DragContext *context_x11)
2491 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2492 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
2495 xev.xclient.type = ClientMessage;
2496 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndLeave");
2497 xev.xclient.format = 32;
2498 xev.xclient.window = context_x11->drop_xid
2499 ? context_x11->drop_xid
2500 : GDK_WINDOW_XID (context->dest_window);
2501 xev.xclient.data.l[0] = GDK_WINDOW_XID (context->source_window);
2502 xev.xclient.data.l[1] = 0;
2503 xev.xclient.data.l[2] = 0;
2504 xev.xclient.data.l[3] = 0;
2505 xev.xclient.data.l[4] = 0;
2507 if (!xdnd_send_xevent (context_x11, context->dest_window, FALSE, &xev))
2510 g_message ("Send event to %lx failed",
2511 GDK_WINDOW_XID (context->dest_window)));
2512 g_object_unref (context->dest_window);
2513 context->dest_window = NULL;
2518 xdnd_send_drop (GdkX11DragContext *context_x11,
2521 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2522 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
2525 xev.xclient.type = ClientMessage;
2526 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndDrop");
2527 xev.xclient.format = 32;
2528 xev.xclient.window = context_x11->drop_xid
2529 ? context_x11->drop_xid
2530 : GDK_WINDOW_XID (context->dest_window);
2531 xev.xclient.data.l[0] = GDK_WINDOW_XID (context->source_window);
2532 xev.xclient.data.l[1] = 0;
2533 xev.xclient.data.l[2] = time;
2534 xev.xclient.data.l[3] = 0;
2535 xev.xclient.data.l[4] = 0;
2537 if (!xdnd_send_xevent (context_x11, context->dest_window, FALSE, &xev))
2540 g_message ("Send event to %lx failed",
2541 GDK_WINDOW_XID (context->dest_window)));
2542 g_object_unref (context->dest_window);
2543 context->dest_window = NULL;
2548 xdnd_send_motion (GdkX11DragContext *context_x11,
2551 GdkDragAction action,
2554 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2555 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
2558 xev.xclient.type = ClientMessage;
2559 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndPosition");
2560 xev.xclient.format = 32;
2561 xev.xclient.window = context_x11->drop_xid
2562 ? context_x11->drop_xid
2563 : GDK_WINDOW_XID (context->dest_window);
2564 xev.xclient.data.l[0] = GDK_WINDOW_XID (context->source_window);
2565 xev.xclient.data.l[1] = 0;
2566 xev.xclient.data.l[2] = (x_root << 16) | y_root;
2567 xev.xclient.data.l[3] = time;
2568 xev.xclient.data.l[4] = xdnd_action_to_atom (display, action);
2570 if (!xdnd_send_xevent (context_x11, context->dest_window, FALSE, &xev))
2573 g_message ("Send event to %lx failed",
2574 GDK_WINDOW_XID (context->dest_window)));
2575 g_object_unref (context->dest_window);
2576 context->dest_window = NULL;
2578 context_x11->drag_status = GDK_DRAG_STATUS_MOTION_WAIT;
2582 xdnd_check_dest (GdkDisplay *display,
2584 guint *xdnd_version)
2586 gboolean retval = FALSE;
2589 unsigned long nitems, after;
2594 Atom xdnd_proxy_atom = gdk_x11_get_xatom_by_name_for_display (display, "XdndProxy");
2595 Atom xdnd_aware_atom = gdk_x11_get_xatom_by_name_for_display (display, "XdndAware");
2599 gdk_x11_display_error_trap_push (display);
2600 if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), win,
2602 1, False, AnyPropertyType,
2603 &type, &format, &nitems, &after,
2608 proxy_data = (Window *)data;
2610 if ((format == 32) && (nitems == 1))
2612 proxy = *proxy_data;
2616 g_warning ("Invalid XdndProxy "
2617 "property on window %ld\n", win));
2622 if ((XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), proxy ? proxy : win,
2624 1, False, AnyPropertyType,
2625 &type, &format, &nitems, &after,
2626 &data) == Success) &&
2629 version = (Atom *)data;
2631 if ((format == 32) && (nitems == 1))
2636 *xdnd_version = *version;
2640 g_warning ("Invalid XdndAware "
2641 "property on window %ld\n", win));
2647 gdk_x11_display_error_trap_pop_ignored (display);
2649 return retval ? (proxy ? proxy : win) : None;
2655 xdnd_read_actions (GdkX11DragContext *context_x11)
2657 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
2658 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
2661 gulong nitems, after;
2666 context_x11->xdnd_have_actions = FALSE;
2668 if (gdk_window_get_window_type (context->source_window) == GDK_WINDOW_FOREIGN)
2670 /* Get the XdndActionList, if set */
2672 gdk_x11_display_error_trap_push (display);
2673 if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
2674 GDK_WINDOW_XID (context->source_window),
2675 gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList"),
2677 False, XA_ATOM, &type, &format, &nitems,
2678 &after, &data) == Success &&
2681 atoms = (Atom *)data;
2683 context->actions = 0;
2685 for (i = 0; i < nitems; i++)
2686 context->actions |= xdnd_action_from_atom (display, atoms[i]);
2688 context_x11->xdnd_have_actions = TRUE;
2690 #ifdef G_ENABLE_DEBUG
2691 if (_gdk_debug_flags & GDK_DEBUG_DND)
2693 GString *action_str = g_string_new (NULL);
2694 if (context->actions & GDK_ACTION_MOVE)
2695 g_string_append(action_str, "MOVE ");
2696 if (context->actions & GDK_ACTION_COPY)
2697 g_string_append(action_str, "COPY ");
2698 if (context->actions & GDK_ACTION_LINK)
2699 g_string_append(action_str, "LINK ");
2700 if (context->actions & GDK_ACTION_ASK)
2701 g_string_append(action_str, "ASK ");
2703 g_message("Xdnd actions = %s", action_str->str);
2704 g_string_free (action_str, TRUE);
2706 #endif /* G_ENABLE_DEBUG */
2713 gdk_x11_display_error_trap_pop_ignored (display);
2719 GdkDragContext *source_context;
2721 source_context = gdk_drag_context_find (display, TRUE,
2722 GDK_WINDOW_XID (context->source_window),
2723 GDK_WINDOW_XID (context->dest_window));
2727 context->actions = source_context->actions;
2728 context_x11->xdnd_have_actions = TRUE;
2733 /* We have to make sure that the XdndActionList we keep internally
2734 * is up to date with the XdndActionList on the source window
2735 * because we get no notification, because Xdnd wasn't meant
2736 * to continually send actions. So we select on PropertyChangeMask
2737 * and add this filter.
2739 static GdkFilterReturn
2740 xdnd_source_window_filter (GdkXEvent *xev,
2744 XEvent *xevent = (XEvent *)xev;
2745 GdkX11DragContext *context_x11 = cb_data;
2746 GdkDisplay *display = GDK_WINDOW_DISPLAY(event->any.window);
2748 if ((xevent->xany.type == PropertyNotify) &&
2749 (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList")))
2751 xdnd_read_actions (context_x11);
2753 return GDK_FILTER_REMOVE;
2756 return GDK_FILTER_CONTINUE;
2760 xdnd_manage_source_filter (GdkDragContext *context,
2762 gboolean add_filter)
2764 if (!GDK_WINDOW_DESTROYED (window) &&
2765 gdk_window_get_window_type (window) == GDK_WINDOW_FOREIGN)
2767 gdk_x11_display_error_trap_push (GDK_WINDOW_DISPLAY (window));
2771 gdk_window_set_events (window,
2772 gdk_window_get_events (window) |
2773 GDK_PROPERTY_CHANGE_MASK);
2774 gdk_window_add_filter (window, xdnd_source_window_filter, context);
2778 gdk_window_remove_filter (window,
2779 xdnd_source_window_filter,
2781 /* Should we remove the GDK_PROPERTY_NOTIFY mask?
2782 * but we might want it for other reasons. (Like
2783 * INCR selection transactions).
2787 gdk_x11_display_error_trap_pop_ignored (GDK_WINDOW_DISPLAY (window));
2792 base_precache_atoms (GdkDisplay *display)
2794 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2796 if (!display_x11->base_dnd_atoms_precached)
2798 static const char *const precache_atoms[] = {
2799 "ENLIGHTENMENT_DESKTOP",
2803 "_MOTIF_DRAG_RECEIVER_INFO"
2806 _gdk_x11_precache_atoms (display,
2807 precache_atoms, G_N_ELEMENTS (precache_atoms));
2809 display_x11->base_dnd_atoms_precached = TRUE;
2814 xdnd_precache_atoms (GdkDisplay *display)
2816 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2818 if (!display_x11->xdnd_atoms_precached)
2820 static const gchar *const precache_atoms[] = {
2826 "XdndActionPrivate",
2837 _gdk_x11_precache_atoms (display,
2838 precache_atoms, G_N_ELEMENTS (precache_atoms));
2840 display_x11->xdnd_atoms_precached = TRUE;
2844 static GdkFilterReturn
2845 xdnd_enter_filter (GdkXEvent *xev,
2849 GdkDeviceManager *device_manager;
2850 GdkDisplay *display;
2851 GdkX11Display *display_x11;
2852 XEvent *xevent = (XEvent *)xev;
2853 GdkDragContext *context;
2854 GdkX11DragContext *context_x11;
2858 gulong nitems, after;
2861 guint32 source_window;
2865 if (!event->any.window ||
2866 gdk_window_get_window_type (event->any.window) == GDK_WINDOW_FOREIGN)
2867 return GDK_FILTER_CONTINUE; /* Not for us */
2869 source_window = xevent->xclient.data.l[0];
2870 get_types = ((xevent->xclient.data.l[1] & 1) != 0);
2871 version = (xevent->xclient.data.l[1] & 0xff000000) >> 24;
2873 display = GDK_WINDOW_DISPLAY (event->any.window);
2874 display_x11 = GDK_X11_DISPLAY (display);
2876 xdnd_precache_atoms (display);
2879 g_message ("XdndEnter: source_window: %#x, version: %#x",
2880 source_window, version));
2884 /* Old source ignore */
2885 GDK_NOTE (DND, g_message ("Ignored old XdndEnter message"));
2886 return GDK_FILTER_REMOVE;
2889 if (display_x11->current_dest_drag != NULL)
2891 g_object_unref (display_x11->current_dest_drag);
2892 display_x11->current_dest_drag = NULL;
2895 context_x11 = (GdkX11DragContext *)g_object_new (GDK_TYPE_X11_DRAG_CONTEXT, NULL);
2896 context = (GdkDragContext *)context_x11;
2898 context->protocol = GDK_DRAG_PROTO_XDND;
2899 context_x11->version = version;
2901 /* FIXME: Should extend DnD protocol to have device info */
2902 device_manager = gdk_display_get_device_manager (display);
2903 gdk_drag_context_set_device (context, gdk_device_manager_get_client_pointer (device_manager));
2905 context->source_window = gdk_x11_window_lookup_for_display (display, source_window);
2906 if (context->source_window)
2907 g_object_ref (context->source_window);
2910 context->source_window = gdk_x11_window_foreign_new_for_display (display, source_window);
2911 if (!context->source_window)
2913 g_object_unref (context);
2914 return GDK_FILTER_REMOVE;
2917 context->dest_window = event->any.window;
2918 g_object_ref (context->dest_window);
2920 context->targets = NULL;
2923 gdk_x11_display_error_trap_push (display);
2924 XGetWindowProperty (GDK_WINDOW_XDISPLAY (event->any.window),
2926 gdk_x11_get_xatom_by_name_for_display (display, "XdndTypeList"),
2928 False, XA_ATOM, &type, &format, &nitems,
2931 if (gdk_x11_display_error_trap_pop (display) || (format != 32) || (type != XA_ATOM))
2933 g_object_unref (context);
2938 return GDK_FILTER_REMOVE;
2941 atoms = (Atom *)data;
2943 for (i = 0; i < nitems; i++)
2945 g_list_append (context->targets,
2946 GDK_ATOM_TO_POINTER (gdk_x11_xatom_to_atom_for_display (display,
2953 for (i = 0; i < 3; i++)
2954 if (xevent->xclient.data.l[2 + i])
2956 g_list_append (context->targets,
2957 GDK_ATOM_TO_POINTER (gdk_x11_xatom_to_atom_for_display (display,
2958 xevent->xclient.data.l[2 + i])));
2961 #ifdef G_ENABLE_DEBUG
2962 if (_gdk_debug_flags & GDK_DEBUG_DND)
2963 print_target_list (context->targets);
2964 #endif /* G_ENABLE_DEBUG */
2966 xdnd_manage_source_filter (context, context->source_window, TRUE);
2967 xdnd_read_actions (context_x11);
2969 event->dnd.type = GDK_DRAG_ENTER;
2970 event->dnd.context = context;
2971 gdk_event_set_device (event, gdk_drag_context_get_device (context));
2972 g_object_ref (context);
2974 display_x11->current_dest_drag = context;
2976 return GDK_FILTER_TRANSLATE;
2979 static GdkFilterReturn
2980 xdnd_leave_filter (GdkXEvent *xev,
2984 XEvent *xevent = (XEvent *)xev;
2985 guint32 source_window = xevent->xclient.data.l[0];
2986 GdkDisplay *display;
2987 GdkX11Display *display_x11;
2989 if (!event->any.window ||
2990 gdk_window_get_window_type (event->any.window) == GDK_WINDOW_FOREIGN)
2991 return GDK_FILTER_CONTINUE; /* Not for us */
2994 g_message ("XdndLeave: source_window: %#x",
2997 display = GDK_WINDOW_DISPLAY (event->any.window);
2998 display_x11 = GDK_X11_DISPLAY (display);
3000 xdnd_precache_atoms (display);
3002 if ((display_x11->current_dest_drag != NULL) &&
3003 (display_x11->current_dest_drag->protocol == GDK_DRAG_PROTO_XDND) &&
3004 (GDK_WINDOW_XID (display_x11->current_dest_drag->source_window) == source_window))
3006 event->dnd.type = GDK_DRAG_LEAVE;
3007 /* Pass ownership of context to the event */
3008 event->dnd.context = display_x11->current_dest_drag;
3009 gdk_event_set_device (event, gdk_drag_context_get_device (event->dnd.context));
3011 display_x11->current_dest_drag = NULL;
3013 return GDK_FILTER_TRANSLATE;
3016 return GDK_FILTER_REMOVE;
3019 static GdkFilterReturn
3020 xdnd_position_filter (GdkXEvent *xev,
3024 XEvent *xevent = (XEvent *)xev;
3025 guint32 source_window = xevent->xclient.data.l[0];
3026 gint16 x_root = xevent->xclient.data.l[2] >> 16;
3027 gint16 y_root = xevent->xclient.data.l[2] & 0xffff;
3028 guint32 time = xevent->xclient.data.l[3];
3029 Atom action = xevent->xclient.data.l[4];
3030 GdkDisplay *display;
3031 GdkX11Display *display_x11;
3032 GdkDragContext *context;
3033 GdkX11DragContext *context_x11;
3035 if (!event->any.window ||
3036 gdk_window_get_window_type (event->any.window) == GDK_WINDOW_FOREIGN)
3037 return GDK_FILTER_CONTINUE; /* Not for us */
3040 g_message ("XdndPosition: source_window: %#x position: (%d, %d) time: %d action: %ld",
3041 source_window, x_root, y_root, time, action));
3043 display = GDK_WINDOW_DISPLAY (event->any.window);
3044 display_x11 = GDK_X11_DISPLAY (display);
3046 xdnd_precache_atoms (display);
3048 context = display_x11->current_dest_drag;
3050 if ((context != NULL) &&
3051 (context->protocol == GDK_DRAG_PROTO_XDND) &&
3052 (GDK_WINDOW_XID (context->source_window) == source_window))
3054 context_x11 = GDK_X11_DRAG_CONTEXT (context);
3056 event->dnd.type = GDK_DRAG_MOTION;
3057 event->dnd.context = context;
3058 gdk_event_set_device (event, gdk_drag_context_get_device (context));
3059 g_object_ref (context);
3061 event->dnd.time = time;
3063 context->suggested_action = xdnd_action_from_atom (display, action);
3065 if (!context_x11->xdnd_have_actions)
3066 context->actions = context->suggested_action;
3068 event->dnd.x_root = x_root;
3069 event->dnd.y_root = y_root;
3071 context_x11->last_x = x_root;
3072 context_x11->last_y = y_root;
3074 return GDK_FILTER_TRANSLATE;
3077 return GDK_FILTER_REMOVE;
3080 static GdkFilterReturn
3081 xdnd_drop_filter (GdkXEvent *xev,
3085 XEvent *xevent = (XEvent *)xev;
3086 guint32 source_window = xevent->xclient.data.l[0];
3087 guint32 time = xevent->xclient.data.l[2];
3088 GdkDisplay *display;
3089 GdkX11Display *display_x11;
3090 GdkDragContext *context;
3091 GdkX11DragContext *context_x11;
3093 if (!event->any.window ||
3094 gdk_window_get_window_type (event->any.window) == GDK_WINDOW_FOREIGN)
3095 return GDK_FILTER_CONTINUE; /* Not for us */
3098 g_message ("XdndDrop: source_window: %#x time: %d",
3099 source_window, time));
3101 display = GDK_WINDOW_DISPLAY (event->any.window);
3102 display_x11 = GDK_X11_DISPLAY (display);
3104 xdnd_precache_atoms (display);
3106 context = display_x11->current_dest_drag;
3108 if ((context != NULL) &&
3109 (context->protocol == GDK_DRAG_PROTO_XDND) &&
3110 (GDK_WINDOW_XID (context->source_window) == source_window))
3112 context_x11 = GDK_X11_DRAG_CONTEXT (context);
3113 event->dnd.type = GDK_DROP_START;
3115 event->dnd.context = context;
3116 gdk_event_set_device (event, gdk_drag_context_get_device (context));
3117 g_object_ref (context);
3119 event->dnd.time = time;
3120 event->dnd.x_root = context_x11->last_x;
3121 event->dnd.y_root = context_x11->last_y;
3123 gdk_x11_window_set_user_time (event->any.window, time);
3125 return GDK_FILTER_TRANSLATE;
3128 return GDK_FILTER_REMOVE;
3132 _gdk_x11_display_init_dnd (GdkDisplay *display)
3137 for (i = 0; i < G_N_ELEMENTS (xdnd_filters); i++)
3139 gdk_display_add_client_message_filter (
3141 gdk_atom_intern_static_string (xdnd_filters[i].atom_name),
3142 xdnd_filters[i].func, NULL);
3149 gdk_drag_do_leave (GdkX11DragContext *context_x11,
3152 GdkDragContext *context = GDK_DRAG_CONTEXT (context_x11);
3154 if (context->dest_window)
3156 switch (context->protocol)
3158 case GDK_DRAG_PROTO_MOTIF:
3159 motif_send_leave (context_x11, time);
3161 case GDK_DRAG_PROTO_XDND:
3162 xdnd_send_leave (context_x11);
3164 case GDK_DRAG_PROTO_ROOTWIN:
3165 case GDK_DRAG_PROTO_NONE:
3170 g_object_unref (context->dest_window);
3171 context->dest_window = NULL;
3176 _gdk_x11_window_drag_begin (GdkWindow *window,
3180 GdkDragContext *context;
3182 context = (GdkDragContext *) g_object_new (GDK_TYPE_X11_DRAG_CONTEXT, NULL);
3184 context->is_source = TRUE;
3185 context->source_window = window;
3186 g_object_ref (window);
3188 context->targets = g_list_copy (targets);
3189 precache_target_list (context);
3191 context->actions = 0;
3193 gdk_drag_context_set_device (context, device);
3199 _gdk_x11_display_get_drag_protocol (GdkDisplay *display,
3200 GdkNativeWindow xid,
3201 GdkDragProtocol *protocol,
3206 GdkNativeWindow retval;
3208 base_precache_atoms (display);
3210 /* Check for a local drag */
3211 window = gdk_x11_window_lookup_for_display (display, xid);
3212 if (window && gdk_window_get_window_type (window) != GDK_WINDOW_FOREIGN)
3214 if (g_object_get_data (G_OBJECT (window), "gdk-dnd-registered") != NULL)
3216 *protocol = GDK_DRAG_PROTO_XDND;
3218 xdnd_precache_atoms (display);
3219 GDK_NOTE (DND, g_message ("Entering local Xdnd window %#x\n", xid));
3222 else if (_gdk_x11_display_is_root_window (display, (Window) xid))
3224 *protocol = GDK_DRAG_PROTO_ROOTWIN;
3225 GDK_NOTE (DND, g_message ("Entering root window\n"));
3229 else if ((retval = xdnd_check_dest (display, xid, version)))
3231 *protocol = GDK_DRAG_PROTO_XDND;
3232 xdnd_precache_atoms (display);
3233 GDK_NOTE (DND, g_message ("Entering Xdnd window %#x\n", xid));
3236 else if ((retval = motif_check_dest (display, xid)))
3238 *protocol = GDK_DRAG_PROTO_MOTIF;
3239 GDK_NOTE (DND, g_message ("Entering motif window %#x\n", xid));
3244 /* Check if this is a root window */
3245 gboolean rootwin = FALSE;
3247 if (_gdk_x11_display_is_root_window (display, (Window) xid))
3252 GDK_NOTE (DND, g_message ("Entering root window\n"));
3253 *protocol = GDK_DRAG_PROTO_ROOTWIN;
3258 *protocol = GDK_DRAG_PROTO_NONE;
3260 return 0; /* a.k.a. None */
3263 static GdkWindowCache *
3264 drag_context_find_window_cache (GdkX11DragContext *context_x11,
3268 GdkWindowCache *cache;
3270 for (list = context_x11->window_caches; list; list = list->next)
3273 if (cache->screen == screen)
3277 cache = gdk_window_cache_get (screen);
3278 context_x11->window_caches = g_slist_prepend (context_x11->window_caches, cache);
3284 gdk_x11_drag_context_find_window (GdkDragContext *context,
3285 GdkWindow *drag_window,
3289 GdkDragProtocol *protocol)
3291 GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
3292 GdkWindowCache *window_cache;
3293 GdkDisplay *display;
3295 GdkWindow *dest_window;
3297 display = GDK_WINDOW_DISPLAY (context->source_window);
3299 window_cache = drag_context_find_window_cache (context_x11, screen);
3301 dest = get_client_window_at_coords (window_cache,
3302 drag_window && GDK_WINDOW_IS_X11 (drag_window) ?
3303 GDK_WINDOW_XID (drag_window) : None,
3306 if (context_x11->dest_xid != dest)
3309 context_x11->dest_xid = dest;
3311 /* Check if new destination accepts drags, and which protocol */
3313 /* There is some ugliness here. We actually need to pass
3314 * _three_ pieces of information to drag_motion - dest_window,
3315 * protocol, and the XID of the unproxied window. The first
3316 * two are passed explicitely, the third implicitly through
3317 * protocol->dest_xid.
3319 recipient = _gdk_x11_display_get_drag_protocol (display,
3322 &context_x11->version);
3324 if (recipient != None)
3326 dest_window = gdk_x11_window_lookup_for_display (display, recipient);
3328 g_object_ref (dest_window);
3330 dest_window = gdk_x11_window_foreign_new_for_display (display, recipient);
3337 dest_window = context->dest_window;
3339 g_object_ref (dest_window);
3340 *protocol = context->protocol;
3347 gdk_x11_drag_context_drag_motion (GdkDragContext *context,
3348 GdkWindow *dest_window,
3349 GdkDragProtocol protocol,
3352 GdkDragAction suggested_action,
3353 GdkDragAction possible_actions,
3356 GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
3358 context_x11->old_actions = context->actions;
3359 context->actions = possible_actions;
3361 if (context_x11->old_actions != possible_actions)
3362 context_x11->xdnd_actions_set = FALSE;
3364 if (protocol == GDK_DRAG_PROTO_XDND && context_x11->version == 0)
3366 /* This ugly hack is necessary since GTK+ doesn't know about
3367 * the XDND protocol version, and in particular doesn't know
3368 * that gdk_drag_find_window_for_screen() has the side-effect
3369 * of setting context_x11->version, and therefore sometimes call
3370 * gdk_drag_motion() without a prior call to
3371 * gdk_drag_find_window_for_screen(). This happens, e.g.
3372 * when GTK+ is proxying DND events to embedded windows.
3376 GdkDisplay *display = GDK_WINDOW_DISPLAY (dest_window);
3378 xdnd_check_dest (display,
3379 GDK_WINDOW_XID (dest_window),
3380 &context_x11->version);
3384 /* When we have a Xdnd target, make sure our XdndActionList
3385 * matches the current actions;
3387 if (protocol == GDK_DRAG_PROTO_XDND && !context_x11->xdnd_actions_set)
3391 if (gdk_window_get_window_type (dest_window) == GDK_WINDOW_FOREIGN)
3392 xdnd_set_actions (context_x11);
3393 else if (context->dest_window == dest_window)
3395 GdkDisplay *display = GDK_WINDOW_DISPLAY (dest_window);
3396 GdkDragContext *dest_context;
3398 dest_context = gdk_drag_context_find (display, FALSE,
3399 GDK_WINDOW_XID (context->source_window),
3400 GDK_WINDOW_XID (dest_window));
3404 dest_context->actions = context->actions;
3405 GDK_X11_DRAG_CONTEXT (dest_context)->xdnd_have_actions = TRUE;
3411 if (context->dest_window != dest_window)
3413 GdkEvent *temp_event;
3415 /* Send a leave to the last destination */
3416 gdk_drag_do_leave (context_x11, time);
3417 context_x11->drag_status = GDK_DRAG_STATUS_DRAG;
3419 /* Check if new destination accepts drags, and which protocol */
3423 context->dest_window = dest_window;
3424 context_x11->drop_xid = context_x11->dest_xid;
3425 g_object_ref (context->dest_window);
3426 context->protocol = protocol;
3430 case GDK_DRAG_PROTO_MOTIF:
3431 motif_send_enter (context_x11, time);
3434 case GDK_DRAG_PROTO_XDND:
3435 xdnd_send_enter (context_x11);
3438 case GDK_DRAG_PROTO_ROOTWIN:
3439 case GDK_DRAG_PROTO_NONE:
3443 context_x11->old_action = suggested_action;
3444 context->suggested_action = suggested_action;
3445 context_x11->old_actions = possible_actions;
3449 context->dest_window = NULL;
3450 context_x11->drop_xid = None;
3451 context->action = 0;
3454 /* Push a status event, to let the client know that
3457 temp_event = gdk_event_new (GDK_DRAG_STATUS);
3458 temp_event->dnd.window = g_object_ref (context->source_window);
3459 /* We use this to signal a synthetic status. Perhaps
3460 * we should use an extra field...
3462 temp_event->dnd.send_event = TRUE;
3464 temp_event->dnd.context = g_object_ref (context);
3465 temp_event->dnd.time = time;
3466 gdk_event_set_device (temp_event, gdk_drag_context_get_device (context));
3468 gdk_event_put (temp_event);
3469 gdk_event_free (temp_event);
3473 context_x11->old_action = context->suggested_action;
3474 context->suggested_action = suggested_action;
3477 /* Send a drag-motion event */
3479 context_x11->last_x = x_root;
3480 context_x11->last_y = y_root;
3482 if (context->dest_window)
3484 if (context_x11->drag_status == GDK_DRAG_STATUS_DRAG)
3486 switch (context->protocol)
3488 case GDK_DRAG_PROTO_MOTIF:
3489 motif_send_motion (context_x11, x_root, y_root, suggested_action, time);
3492 case GDK_DRAG_PROTO_XDND:
3493 xdnd_send_motion (context_x11, x_root, y_root, suggested_action, time);
3496 case GDK_DRAG_PROTO_ROOTWIN:
3498 GdkEvent *temp_event;
3499 /* GTK+ traditionally has used application/x-rootwin-drop,
3500 * but the XDND spec specifies x-rootwindow-drop.
3502 GdkAtom target1 = gdk_atom_intern_static_string ("application/x-rootwindow-drop");
3503 GdkAtom target2 = gdk_atom_intern_static_string ("application/x-rootwin-drop");
3505 if (g_list_find (context->targets,
3506 GDK_ATOM_TO_POINTER (target1)) ||
3507 g_list_find (context->targets,
3508 GDK_ATOM_TO_POINTER (target2)))
3509 context->action = context->suggested_action;
3511 context->action = 0;
3513 temp_event = gdk_event_new (GDK_DRAG_STATUS);
3514 temp_event->dnd.window = g_object_ref (context->source_window);
3515 temp_event->dnd.send_event = FALSE;
3516 temp_event->dnd.context = g_object_ref (context);
3517 temp_event->dnd.time = time;
3518 gdk_event_set_device (temp_event, gdk_drag_context_get_device (context));
3520 gdk_event_put (temp_event);
3521 gdk_event_free (temp_event);
3524 case GDK_DRAG_PROTO_NONE:
3525 g_warning ("GDK_DRAG_PROTO_NONE is not valid in gdk_drag_motion()");
3539 gdk_x11_drag_context_drag_abort (GdkDragContext *context,
3542 gdk_drag_do_leave (GDK_X11_DRAG_CONTEXT (context), time);
3546 gdk_x11_drag_context_drag_drop (GdkDragContext *context,
3549 GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
3551 if (context->dest_window)
3553 switch (context->protocol)
3555 case GDK_DRAG_PROTO_MOTIF:
3556 motif_send_leave (context_x11, time);
3557 motif_send_drop (context_x11, time);
3560 case GDK_DRAG_PROTO_XDND:
3561 xdnd_send_drop (context_x11, time);
3564 case GDK_DRAG_PROTO_ROOTWIN:
3565 g_warning ("Drops for GDK_DRAG_PROTO_ROOTWIN must be handled internally");
3567 case GDK_DRAG_PROTO_NONE:
3568 g_warning ("GDK_DRAG_PROTO_NONE is not valid in gdk_drag_drop()");
3576 /* Destination side */
3579 gdk_x11_drag_context_drag_status (GdkDragContext *context,
3580 GdkDragAction action,
3583 GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
3585 GdkDisplay *display;
3587 display = GDK_WINDOW_DISPLAY (context->source_window);
3589 context->action = action;
3591 if (context->protocol == GDK_DRAG_PROTO_MOTIF)
3593 gboolean need_coords = FALSE;
3595 xev.xclient.type = ClientMessage;
3596 xev.xclient.message_type =
3597 gdk_x11_get_xatom_by_name_for_display (display,
3598 "_MOTIF_DRAG_AND_DROP_MESSAGE");
3599 xev.xclient.format = 8;
3600 xev.xclient.window = GDK_WINDOW_XID (context->source_window);
3602 if (context_x11->drag_status == GDK_DRAG_STATUS_ACTION_WAIT)
3604 MOTIF_XCLIENT_BYTE (&xev, 0) = XmOPERATION_CHANGED | 0x80;
3608 if ((action != 0) != (context_x11->old_action != 0))
3612 MOTIF_XCLIENT_BYTE (&xev, 0) = XmDROP_SITE_ENTER | 0x80;
3617 MOTIF_XCLIENT_BYTE (&xev, 0) = XmDROP_SITE_LEAVE | 0x80;
3622 MOTIF_XCLIENT_BYTE (&xev, 0) = XmDRAG_MOTION | 0x80;
3627 MOTIF_XCLIENT_BYTE (&xev, 1) = local_byte_order;
3631 case GDK_ACTION_MOVE:
3632 MOTIF_XCLIENT_SHORT (&xev, 1) = XmDROP_MOVE;
3634 case GDK_ACTION_COPY:
3635 MOTIF_XCLIENT_SHORT (&xev, 1) = XmDROP_COPY;
3637 case GDK_ACTION_LINK:
3638 MOTIF_XCLIENT_SHORT (&xev, 1) = XmDROP_LINK;
3641 MOTIF_XCLIENT_SHORT (&xev, 1) = XmDROP_NOOP;
3646 MOTIF_XCLIENT_SHORT (&xev, 1) |= (XmDROP_SITE_VALID << 4);
3648 MOTIF_XCLIENT_SHORT (&xev, 1) |= (XmNO_DROP_SITE << 4);
3650 MOTIF_XCLIENT_LONG (&xev, 1) = time_;
3654 MOTIF_XCLIENT_SHORT (&xev, 4) = context_x11->last_x;
3655 MOTIF_XCLIENT_SHORT (&xev, 5) = context_x11->last_y;
3658 MOTIF_XCLIENT_LONG (&xev, 2) = 0;
3660 MOTIF_XCLIENT_LONG (&xev, 3) = 0;
3661 MOTIF_XCLIENT_LONG (&xev, 4) = 0;
3663 if (!_gdk_x11_display_send_xevent (display,
3664 GDK_WINDOW_XID (context->source_window),
3667 g_message ("Send event to %lx failed",
3668 GDK_WINDOW_XID (context->source_window)));
3670 else if (context->protocol == GDK_DRAG_PROTO_XDND)
3672 xev.xclient.type = ClientMessage;
3673 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndStatus");
3674 xev.xclient.format = 32;
3675 xev.xclient.window = GDK_WINDOW_XID (context->source_window);
3677 xev.xclient.data.l[0] = GDK_WINDOW_XID (context->dest_window);
3678 xev.xclient.data.l[1] = (action != 0) ? (2 | 1) : 0;
3679 xev.xclient.data.l[2] = 0;
3680 xev.xclient.data.l[3] = 0;
3681 xev.xclient.data.l[4] = xdnd_action_to_atom (display, action);
3682 if (!xdnd_send_xevent (context_x11, context->source_window, FALSE, &xev))
3684 g_message ("Send event to %lx failed",
3685 GDK_WINDOW_XID (context->source_window)));
3688 context_x11->old_action = action;
3692 gdk_x11_drag_context_drop_reply (GdkDragContext *context,
3696 GdkX11DragContext *context_x11 = GDK_X11_DRAG_CONTEXT (context);
3698 if (context->protocol == GDK_DRAG_PROTO_MOTIF)
3700 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
3703 xev.xclient.type = ClientMessage;
3704 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display,
3705 "_MOTIF_DRAG_AND_DROP_MESSAGE");
3706 xev.xclient.format = 8;
3708 MOTIF_XCLIENT_BYTE (&xev, 0) = XmDROP_START | 0x80;
3709 MOTIF_XCLIENT_BYTE (&xev, 1) = local_byte_order;
3711 MOTIF_XCLIENT_SHORT (&xev, 1) = XmDROP_COPY |
3712 (XmDROP_SITE_VALID << 4) |
3713 (XmDROP_NOOP << 8) |
3716 MOTIF_XCLIENT_SHORT (&xev, 1) = XmDROP_NOOP |
3717 (XmNO_DROP_SITE << 4) |
3718 (XmDROP_NOOP << 8) |
3719 (XmDROP_CANCEL << 12);
3720 MOTIF_XCLIENT_SHORT (&xev, 2) = context_x11->last_x;
3721 MOTIF_XCLIENT_SHORT (&xev, 3) = context_x11->last_y;
3722 MOTIF_XCLIENT_LONG (&xev, 2) = 0;
3723 MOTIF_XCLIENT_LONG (&xev, 3) = 0;
3724 MOTIF_XCLIENT_LONG (&xev, 4) = 0;
3726 _gdk_x11_display_send_xevent (display,
3727 GDK_WINDOW_XID (context->source_window),
3733 gdk_x11_drag_context_drop_finish (GdkDragContext *context,
3737 if (context->protocol == GDK_DRAG_PROTO_XDND)
3739 GdkDisplay *display = GDK_WINDOW_DISPLAY (context->source_window);
3742 xev.xclient.type = ClientMessage;
3743 xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndFinished");
3744 xev.xclient.format = 32;
3745 xev.xclient.window = GDK_WINDOW_XID (context->source_window);
3747 xev.xclient.data.l[0] = GDK_WINDOW_XID (context->dest_window);
3750 xev.xclient.data.l[1] = 1;
3751 xev.xclient.data.l[2] = xdnd_action_to_atom (display,
3756 xev.xclient.data.l[1] = 0;
3757 xev.xclient.data.l[2] = None;
3759 xev.xclient.data.l[3] = 0;
3760 xev.xclient.data.l[4] = 0;
3762 if (!xdnd_send_xevent (GDK_X11_DRAG_CONTEXT (context), context->source_window, FALSE, &xev))
3764 g_message ("Send event to %lx failed",
3765 GDK_WINDOW_XID (context->source_window)));
3770 _gdk_x11_window_register_dnd (GdkWindow *window)
3772 static const gulong xdnd_version = 5;
3773 MotifDragReceiverInfo info;
3774 Atom motif_drag_receiver_info_atom;
3775 GdkDisplay *display = gdk_window_get_display (window);
3777 g_return_if_fail (window != NULL);
3779 if (gdk_window_get_window_type (window) == GDK_WINDOW_OFFSCREEN)
3782 base_precache_atoms (display);
3784 if (g_object_get_data (G_OBJECT (window), "gdk-dnd-registered") != NULL)
3787 g_object_set_data (G_OBJECT (window), "gdk-dnd-registered", GINT_TO_POINTER (TRUE));
3789 /* Set Motif drag receiver information property */
3790 motif_drag_receiver_info_atom = gdk_x11_get_xatom_by_name_for_display (display,
3791 "_MOTIF_DRAG_RECEIVER_INFO");
3792 /* initialize to zero to avoid writing uninitialized data to socket */
3793 memset(&info, 0, sizeof(info));
3794 info.byte_order = local_byte_order;
3795 info.protocol_version = 0;
3796 info.protocol_style = XmDRAG_DYNAMIC;
3797 info.proxy_window = None;
3798 info.num_drop_sites = 0;
3799 info.total_size = sizeof(info);
3801 XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
3802 GDK_WINDOW_XID (window),
3803 motif_drag_receiver_info_atom,
3804 motif_drag_receiver_info_atom,
3811 /* The property needs to be of type XA_ATOM, not XA_INTEGER. Blech */
3812 XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
3813 GDK_WINDOW_XID (window),
3814 gdk_x11_get_xatom_by_name_for_display (display, "XdndAware"),
3815 XA_ATOM, 32, PropModeReplace,
3816 (guchar *)&xdnd_version, 1);
3820 gdk_x11_drag_context_get_selection (GdkDragContext *context)
3822 if (context->protocol == GDK_DRAG_PROTO_MOTIF)
3823 return gdk_x11_xatom_to_atom_for_display (GDK_WINDOW_DISPLAY (context->source_window),
3824 (GDK_X11_DRAG_CONTEXT (context))->motif_selection);
3825 else if (context->protocol == GDK_DRAG_PROTO_XDND)
3826 return gdk_atom_intern_static_string ("XdndSelection");
3832 gdk_x11_drag_context_drop_status (GdkDragContext *context)
3834 return ! GDK_X11_DRAG_CONTEXT (context)->drop_failed;