1 /* GDK - The GIMP Drawing Kit
4 * Copyright 2001 Sun Microsystems Inc.
5 * Copyright (C) 2004 Nokia Corporation
7 * Erwann Chenede <erwann.chenede@sun.com>
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
34 #include "gdkdisplay.h"
35 #include "gdkdisplay-x11.h"
36 #include "gdkscreen.h"
37 #include "gdkscreen-x11.h"
38 #include "gdkinternals.h"
39 #include "gdkinputprivate.h"
40 #include "xsettings-client.h"
42 #include <X11/Xatom.h>
45 #include <X11/XKBlib.h>
49 #include <X11/extensions/Xfixes.h>
52 static void gdk_display_x11_class_init (GdkDisplayX11Class *class);
53 static void gdk_display_x11_dispose (GObject *object);
54 static void gdk_display_x11_finalize (GObject *object);
57 static void gdk_internal_connection_watch (Display *display,
61 XPointer *watch_data);
62 #endif /* HAVE_X11R6 */
64 static gpointer parent_class = NULL;
66 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
67 * but including them here has the side-effect of getting them
68 * into the internal Xlib cache
70 static const char *const precache_atoms[] = {
84 "_NET_WM_STATE_STICKY",
85 "_NET_WM_STATE_MAXIMIZED_VERT",
86 "_NET_WM_STATE_MAXIMIZED_HORZ",
87 "_NET_WM_STATE_FULLSCREEN",
88 "_NET_WM_SYNC_REQUEST",
89 "_NET_WM_SYNC_REQUEST_COUNTER",
90 "_NET_WM_WINDOW_TYPE",
91 "_NET_WM_WINDOW_TYPE_NORMAL",
97 _gdk_display_x11_get_type (void)
99 static GType object_type = 0;
103 static const GTypeInfo object_info =
105 sizeof (GdkDisplayX11Class),
106 (GBaseInitFunc) NULL,
107 (GBaseFinalizeFunc) NULL,
108 (GClassInitFunc) gdk_display_x11_class_init,
109 NULL, /* class_finalize */
110 NULL, /* class_data */
111 sizeof (GdkDisplayX11),
113 (GInstanceInitFunc) NULL,
116 object_type = g_type_register_static (GDK_TYPE_DISPLAY,
125 gdk_display_x11_class_init (GdkDisplayX11Class * class)
127 GObjectClass *object_class = G_OBJECT_CLASS (class);
129 object_class->dispose = gdk_display_x11_dispose;
130 object_class->finalize = gdk_display_x11_finalize;
132 parent_class = g_type_class_peek_parent (class);
138 * @display_name: the name of the display to open
139 * @returns: a #GdkDisplay, or %NULL if the display
140 * could not be opened.
147 gdk_display_open (const gchar *display_name)
151 GdkDisplayX11 *display_x11;
155 const char *sm_client_id;
157 XClassHint *class_hint;
164 xdisplay = XOpenDisplay (display_name);
168 display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
169 display_x11 = GDK_DISPLAY_X11 (display);
171 display_x11->use_xshm = TRUE;
172 display_x11->xdisplay = xdisplay;
175 /* Set up handlers for Xlib internal connections */
176 XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
177 #endif /* HAVE_X11R6 */
179 /* initialize the display's screens */
180 display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
181 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
182 display_x11->screens[i] = _gdk_x11_screen_new (display, i);
184 /* We need to initialize events after we have the screen
185 * structures in places
187 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
188 _gdk_x11_events_init_screen (display_x11->screens[i]);
190 /*set the default screen */
191 display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
193 attr.window_type = GDK_WINDOW_TOPLEVEL;
194 attr.wclass = GDK_INPUT_OUTPUT;
201 display_x11->leader_gdk_window = gdk_window_new (GDK_SCREEN_X11 (display_x11->default_screen)->root_window,
202 &attr, GDK_WA_X | GDK_WA_Y);
203 (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
205 display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
207 display_x11->leader_window_title_set = FALSE;
209 display_x11->have_render = GDK_UNKNOWN;
210 display_x11->have_render_with_trapezoids = GDK_UNKNOWN;
213 if (XFixesQueryExtension (display_x11->xdisplay,
214 &display_x11->xfixes_event_base,
217 display_x11->have_xfixes = TRUE;
219 gdk_x11_register_standard_event_type (display,
220 display_x11->xfixes_event_base,
225 display_x11->have_xfixes = FALSE;
227 if (_gdk_synchronize)
228 XSynchronize (display_x11->xdisplay, True);
230 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
232 class_hint = XAllocClassHint();
233 class_hint->res_name = g_get_prgname ();
235 class_hint->res_class = (char *)gdk_get_program_class ();
237 /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
238 * from argv[0], so we just synthesize an argument array here.
241 argv[0] = g_get_prgname ();
243 XmbSetWMProperties (display_x11->xdisplay,
244 display_x11->leader_window,
245 NULL, NULL, argv, argc, NULL, NULL,
249 sm_client_id = _gdk_get_sm_client_id ();
251 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
254 XChangeProperty (display_x11->xdisplay,
255 display_x11->leader_window,
256 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
257 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
259 /* We don't yet know a valid time. */
260 display_x11->user_time = 0;
264 gint xkb_major = XkbMajorVersion;
265 gint xkb_minor = XkbMinorVersion;
266 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
268 xkb_major = XkbMajorVersion;
269 xkb_minor = XkbMinorVersion;
271 if (XkbQueryExtension (display_x11->xdisplay,
272 NULL, &display_x11->xkb_event_type, NULL,
273 &xkb_major, &xkb_minor))
275 Bool detectable_autorepeat_supported;
277 display_x11->use_xkb = TRUE;
279 XkbSelectEvents (display_x11->xdisplay,
281 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
282 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
284 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
286 &detectable_autorepeat_supported);
288 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
289 detectable_autorepeat_supported ?
290 "supported" : "not supported"));
292 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
298 display_x11->use_sync = FALSE;
302 int error_base, event_base;
304 if (XSyncQueryExtension (display_x11->xdisplay,
305 &event_base, &error_base) &&
306 XSyncInitialize (display_x11->xdisplay,
308 display_x11->use_sync = TRUE;
312 _gdk_windowing_image_init (display);
313 _gdk_events_init (display);
314 _gdk_input_init (display);
315 _gdk_dnd_init (display);
317 g_signal_emit_by_name (gdk_display_manager_get(),
318 "display_opened", display);
325 * XLib internal connection handling
327 typedef struct _GdkInternalConnection GdkInternalConnection;
329 struct _GdkInternalConnection
337 process_internal_connection (GIOChannel *gioc,
341 GdkInternalConnection *connection = (GdkInternalConnection *)data;
343 GDK_THREADS_ENTER ();
345 XProcessInternalConnection ((Display*)connection->display, connection->fd);
347 GDK_THREADS_LEAVE ();
352 static GdkInternalConnection *
353 gdk_add_connection_handler (Display *display,
356 GIOChannel *io_channel;
357 GdkInternalConnection *connection;
359 connection = g_new (GdkInternalConnection, 1);
362 connection->display = display;
364 io_channel = g_io_channel_unix_new (fd);
366 connection->source = g_io_create_watch (io_channel, G_IO_IN);
367 g_source_set_callback (connection->source,
368 (GSourceFunc)process_internal_connection, connection, NULL);
369 g_source_attach (connection->source, NULL);
371 g_io_channel_unref (io_channel);
377 gdk_remove_connection_handler (GdkInternalConnection *connection)
379 g_source_destroy (connection->source);
384 gdk_internal_connection_watch (Display *display,
388 XPointer *watch_data)
391 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
393 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
395 #endif /* HAVE_X11R6 */
398 * gdk_display_get_name:
399 * @display: a #GdkDisplay
401 * Gets the name of the display.
403 * Returns: a string representing the display name. This string is owned
404 * by GDK and should not be modified or freed.
408 G_CONST_RETURN gchar *
409 gdk_display_get_name (GdkDisplay * display)
411 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
413 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
417 * gdk_display_get_n_screens:
418 * @display: a #GdkDisplay
420 * Gets the number of screen managed by the @display.
422 * Returns: number of screens.
427 gdk_display_get_n_screens (GdkDisplay * display)
429 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
431 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
435 * gdk_display_get_screen:
436 * @display: a #GdkDisplay
437 * @screen_num: the screen number
439 * Returns a screen object for one of the screens of the display.
441 * Returns: the #GdkScreen object
446 gdk_display_get_screen (GdkDisplay * display, gint screen_num)
448 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
449 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
451 return GDK_DISPLAY_X11 (display)->screens[screen_num];
455 * gdk_display_get_default_screen:
456 * @display: a #GdkDisplay
458 * Get the default #GdkScreen for @display.
460 * Returns: the default #GdkScreen object for @display
465 gdk_display_get_default_screen (GdkDisplay * display)
467 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
469 return GDK_DISPLAY_X11 (display)->default_screen;
473 _gdk_x11_display_is_root_window (GdkDisplay *display,
476 GdkDisplayX11 *display_x11;
479 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
481 display_x11 = GDK_DISPLAY_X11 (display);
483 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
485 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
492 * gdk_display_pointer_ungrab:
493 * @display: a #GdkDisplay.
494 * @time_: a timestap (e.g. GDK_CURRENT_TIME).
496 * Release any pointer grab.
501 gdk_display_pointer_ungrab (GdkDisplay *display,
506 g_return_if_fail (GDK_IS_DISPLAY (display));
508 xdisplay = GDK_DISPLAY_XDISPLAY (display);
510 _gdk_input_ungrab_pointer (display, time);
511 XUngrabPointer (xdisplay, time);
514 GDK_DISPLAY_X11 (display)->pointer_xgrab_window = NULL;
518 * gdk_display_pointer_is_grabbed:
519 * @display: a #GdkDisplay
521 * Test if the pointer is grabbed.
523 * Returns: %TRUE if an active X pointer grab is in effect
528 gdk_display_pointer_is_grabbed (GdkDisplay * display)
530 g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
532 return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL);
536 * gdk_display_keyboard_ungrab:
537 * @display: a #GdkDisplay.
538 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
540 * Release any keyboard grab
545 gdk_display_keyboard_ungrab (GdkDisplay *display,
550 g_return_if_fail (GDK_IS_DISPLAY (display));
552 xdisplay = GDK_DISPLAY_XDISPLAY (display);
554 XUngrabKeyboard (xdisplay, time);
557 GDK_DISPLAY_X11 (display)->keyboard_xgrab_window = NULL;
562 * @display: a #GdkDisplay
564 * Emits a short beep on @display
569 gdk_display_beep (GdkDisplay * display)
571 g_return_if_fail (GDK_IS_DISPLAY (display));
573 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
578 * @display: a #GdkDisplay
580 * Flushes any requests queued for the windowing system and waits until all
581 * requests have been handled. This is often used for making sure that the
582 * display is synchronized with the current state of the program. Calling
583 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
584 * generated from earlier requests are handled before the error trap is
587 * This is most useful for X11. On windowing systems where requests are
588 * handled synchronously, this function will do nothing.
593 gdk_display_sync (GdkDisplay * display)
595 g_return_if_fail (GDK_IS_DISPLAY (display));
597 XSync (GDK_DISPLAY_XDISPLAY (display), False);
602 * @display: a #GdkDisplay
604 * Flushes any requests queued for the windowing system; this happens automatically
605 * when the main loop blocks waiting for new events, but if your application
606 * is drawing without returning control to the main loop, you may need
607 * to call this function explicitely. A common case where this function
608 * needs to be called is when an application is executing drawing commands
609 * from a thread other than the thread where the main loop is running.
611 * This is most useful for X11. On windowing systems where requests are
612 * handled synchronously, this function will do nothing.
617 gdk_display_flush (GdkDisplay *display)
619 g_return_if_fail (GDK_IS_DISPLAY (display));
621 if (!display->closed)
622 XFlush (GDK_DISPLAY_XDISPLAY (display));
626 * gdk_display_get_default_group:
627 * @display: a #GdkDisplay
629 * Returns the default group leader window for all toplevel windows
630 * on @display. This window is implicitly created by GDK.
631 * See gdk_window_set_group().
633 * Return value: The default group leader window for @display
637 GdkWindow *gdk_display_get_default_group (GdkDisplay *display)
639 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
641 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
645 * gdk_x11_display_grab:
646 * @display: a #GdkDisplay
648 * Call XGrabServer() on @display.
649 * To ungrab the display again, use gdk_x11_display_ungrab().
651 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
656 gdk_x11_display_grab (GdkDisplay * display)
658 GdkDisplayX11 *display_x11;
660 g_return_if_fail (GDK_IS_DISPLAY (display));
662 display_x11 = GDK_DISPLAY_X11 (display);
664 if (display_x11->grab_count == 0)
665 XGrabServer (display_x11->xdisplay);
666 display_x11->grab_count++;
670 * gdk_x11_display_ungrab:
671 * @display: a #GdkDisplay
673 * Ungrab @display after it has been grabbed with
674 * gdk_x11_display_grab().
679 gdk_x11_display_ungrab (GdkDisplay * display)
681 GdkDisplayX11 *display_x11;
683 g_return_if_fail (GDK_IS_DISPLAY (display));
685 display_x11 = GDK_DISPLAY_X11 (display);;
686 g_return_if_fail (display_x11->grab_count > 0);
688 display_x11->grab_count--;
689 if (display_x11->grab_count == 0)
691 XUngrabServer (display_x11->xdisplay);
692 XFlush (display_x11->xdisplay);
697 gdk_display_x11_dispose (GObject *object)
699 GdkDisplayX11 *display_x11;
702 display_x11 = GDK_DISPLAY_X11 (object);
704 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
705 _gdk_screen_close (display_x11->screens[i]);
707 g_source_destroy (display_x11->event_source);
709 XCloseDisplay (display_x11->xdisplay);
710 display_x11->xdisplay = NULL;
712 G_OBJECT_CLASS (parent_class)->dispose (object);
716 gdk_display_x11_finalize (GObject *object)
718 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
721 /* FIXME need to write GdkKeymap finalize fct
722 g_object_unref (display_x11->keymap);
725 if (display_x11->motif_target_lists)
727 for (i = 0; i < display_x11->motif_n_target_lists; i++)
728 g_list_free (display_x11->motif_target_lists[i]);
729 g_free (display_x11->motif_target_lists);
733 g_hash_table_destroy (display_x11->atom_from_virtual);
734 g_hash_table_destroy (display_x11->atom_to_virtual);
736 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
737 /* list of filters for client messages */
738 g_list_free (display_x11->client_filters);
739 /* List of event window extraction functions */
740 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
741 g_slist_free (display_x11->event_types);
743 g_hash_table_destroy (display_x11->xid_ht);
744 /* input GdkDevice list */
745 /* FIXME need to write finalize fct */
746 for (tmp = display_x11->input_devices; tmp; tmp = tmp->next)
747 g_object_unref (tmp->data);
748 g_list_free (display_x11->input_devices);
749 /* input GdkWindow list */
750 for (tmp = display_x11->input_windows; tmp; tmp = tmp->next)
751 g_object_unref (tmp->data);
752 g_list_free (display_x11->input_windows);
753 /* Free all GdkScreens */
754 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
755 g_object_unref (display_x11->screens[i]);
756 g_free (display_x11->screens);
757 g_free (display_x11->startup_notification_id);
759 G_OBJECT_CLASS (parent_class)->finalize (object);
763 * gdk_x11_lookup_xdisplay:
764 * @xdisplay: a pointer to an X Display
766 * Find the #GdkDisplay corresponding to @display, if any exists.
768 * Return value: the #GdkDisplay, if found, otherwise %NULL.
773 gdk_x11_lookup_xdisplay (Display *xdisplay)
777 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
779 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
780 return tmp_list->data;
787 * _gdk_x11_display_screen_for_xrootwin:
788 * @display: a #Display
789 * @xrootwin: window ID for one of of the screen's of the display.
791 * Given the root window ID of one of the screen's of a #GdkDisplay,
794 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
797 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
802 n_screens = gdk_display_get_n_screens (display);
803 for (i = 0; i < n_screens; i++)
805 GdkScreen *screen = gdk_display_get_screen (display, i);
806 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
814 * gdk_x11_display_get_xdisplay:
815 * @display: a #GdkDisplay
816 * @returns: an X display.
818 * Returns the X display of a #GdkDisplay.
823 gdk_x11_display_get_xdisplay (GdkDisplay *display)
825 return GDK_DISPLAY_X11 (display)->xdisplay;
829 _gdk_windowing_set_default_display (GdkDisplay *display)
831 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
832 const gchar *startup_id;
835 gdk_display = GDK_DISPLAY_XDISPLAY (display);
839 g_free (display_x11->startup_notification_id);
840 display_x11->startup_notification_id = NULL;
842 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
843 if (startup_id && *startup_id != '\0')
845 if (!g_utf8_validate (startup_id, -1, NULL))
846 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
848 display_x11->startup_notification_id = g_strdup (startup_id);
850 /* Clear the environment variable so it won't be inherited by
851 * child processes and confuse things.
853 g_unsetenv ("DESKTOP_STARTUP_ID");
855 /* Set the startup id on the leader window so it
856 * applies to all windows we create on this display
858 XChangeProperty (display_x11->xdisplay,
859 display_x11->leader_window,
860 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
861 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
863 startup_id, strlen (startup_id));
868 escape_for_xmessage (const char *str)
873 retval = g_string_new (NULL);
883 g_string_append_c (retval, '\\');
887 g_string_append_c (retval, *p);
891 return g_string_free (retval, FALSE);
895 broadcast_xmessage (GdkDisplay *display,
896 const char *message_type,
897 const char *message_type_begin,
900 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
901 GdkScreen *screen = gdk_display_get_default_screen (display);
902 GdkWindow *root_window = gdk_screen_get_root_window (screen);
903 Window xroot_window = GDK_WINDOW_XID (root_window);
906 Atom type_atom_begin;
910 XSetWindowAttributes attrs;
912 attrs.override_redirect = True;
913 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
916 XCreateWindow (xdisplay,
922 (Visual *)CopyFromParent,
923 CWOverrideRedirect | CWEventMask,
927 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
929 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
939 xevent.xclient.type = ClientMessage;
940 xevent.xclient.message_type = type_atom_begin;
941 xevent.xclient.display =xdisplay;
942 xevent.xclient.window = xwindow;
943 xevent.xclient.format = 8;
946 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
948 while (src != src_end)
950 dest = &xevent.xclient.data.b[0];
951 dest_end = dest + 20;
953 while (dest != dest_end &&
961 while (dest != dest_end)
967 XSendEvent (xdisplay,
973 xevent.xclient.message_type = type_atom;
977 XDestroyWindow (xdisplay, xwindow);
982 * gdk_notify_startup_complete:
984 * Indicates to the GUI environment that the application has finished
985 * loading. If the applications opens windows, this function is
986 * normally called after opening the application's initial set of
989 * GTK+ will call this function automatically after opening the first
990 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
991 * to disable that feature.
996 gdk_notify_startup_complete (void)
999 GdkDisplayX11 *display_x11;
1003 display = gdk_display_get_default ();
1007 display_x11 = GDK_DISPLAY_X11 (display);
1009 if (display_x11->startup_notification_id == NULL)
1012 escaped_id = escape_for_xmessage (display_x11->startup_notification_id);
1013 message = g_strdup_printf ("remove: ID=%s", escaped_id);
1014 g_free (escaped_id);
1016 broadcast_xmessage (display,
1017 "_NET_STARTUP_INFO",
1018 "_NET_STARTUP_INFO_BEGIN",
1026 * gdk_display_supports_selection_notification:
1027 * @display: a #GdkDisplay
1029 * Returns whether #GdkEventOwnerChange events will be
1030 * sent when the owner of a selection changes.
1032 * Return value: whether #GdkEventOwnerChange events will
1038 gdk_display_supports_selection_notification (GdkDisplay *display)
1040 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1042 return display_x11->have_xfixes;
1046 * gdk_display_request_selection_notification:
1047 * @display: a #GdkDisplay
1048 * @selection: the #GdkAtom naming the selection for which
1049 * ownership change notification is requested
1051 * Request #GdkEventOwnerChange events for ownership changes
1052 * of the selection named by the given atom.
1054 * Return value: whether #GdkEventOwnerChange events will
1059 gboolean gdk_display_request_selection_notification (GdkDisplay *display,
1064 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1067 if (display_x11->have_xfixes)
1069 atom = gdk_x11_atom_to_xatom_for_display (display,
1071 XFixesSelectSelectionInput (display_x11->xdisplay,
1072 display_x11->leader_window,
1074 XFixesSetSelectionOwnerNotifyMask |
1075 XFixesSelectionWindowDestroyNotifyMask |
1076 XFixesSelectionClientCloseNotifyMask);
1085 * gdk_display_supports_clipboard_persistence
1086 * @display: a #GdkDisplay
1088 * Returns whether the speicifed display supports clipboard
1089 * persistance; i.e. if it's possible to store the clipboard data after an
1090 * application has quit. On X11 this checks if a clipboard daemon is
1093 * Returns: %TRUE if the display supports clipboard persistance.
1098 gdk_display_supports_clipboard_persistence (GdkDisplay *display)
1100 /* It might make sense to cache this */
1101 return XGetSelectionOwner (GDK_DISPLAY_X11 (display)->xdisplay,
1102 gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER")) != None;
1106 * gdk_display_store_clipboard
1107 * @display: a #GdkDisplay
1108 * @clipboard_window: a #GdkWindow belonging to the clipboard owner
1109 * @time_: a timestamp
1110 * @targets: an array of targets that should be saved, or %NULL
1111 * if all available targets should be saved.
1112 * @n_targets: length of the @targets array
1114 * Issues a request to the the clipboard manager to store the
1115 * clipboard data. On X11, this is a special program that works
1116 * according to the freedesktop clipboard specification, available at
1117 * <ulink url="http://www.freedesktop.org/Standards/clipboard-manager-spec">
1118 * http://www.freedesktop.org/Standards/clipboard-manager-spec</ulink>.
1123 gdk_display_store_clipboard (GdkDisplay *display,
1124 GdkWindow *clipboard_window,
1129 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1130 Atom clipboard_manager, save_targets;
1132 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1133 save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
1135 gdk_error_trap_push ();
1137 if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
1139 Atom property_name = None;
1145 property_name = gdk_x11_atom_to_xatom_for_display (display, _gdk_selection_property);
1147 xatoms = g_new (Atom, n_targets);
1148 for (i = 0; i < n_targets; i++)
1149 xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
1151 XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
1152 property_name, XA_ATOM,
1153 32, PropModeReplace, (guchar *)xatoms, n_targets);
1158 XConvertSelection (display_x11->xdisplay,
1159 clipboard_manager, save_targets, property_name,
1160 GDK_WINDOW_XID (clipboard_window), time_);
1163 gdk_error_trap_pop ();
1168 * gdk_x11_display_get_user_time:
1169 * @display: a #GdkDisplay
1171 * Returns the timestamp of the last user interaction on
1172 * @display. The timestamp is taken from events caused
1173 * by user interaction such as key presses or pointer
1174 * movements. See gdk_x11_window_set_user_time().
1176 * Returns: the timestamp of the last user interaction
1181 gdk_x11_display_get_user_time (GdkDisplay *display)
1183 return GDK_DISPLAY_X11 (display)->user_time;