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"
43 #include <X11/Xatom.h>
46 #include <X11/XKBlib.h>
50 #include <X11/extensions/Xfixes.h>
53 #include <X11/extensions/shape.h>
55 #ifdef HAVE_XCOMPOSITE
56 #include <X11/extensions/Xcomposite.h>
60 #include <X11/extensions/Xdamage.h>
64 #include <X11/extensions/Xrandr.h>
68 static void gdk_display_x11_dispose (GObject *object);
69 static void gdk_display_x11_finalize (GObject *object);
72 static void gdk_internal_connection_watch (Display *display,
76 XPointer *watch_data);
77 #endif /* HAVE_X11R6 */
79 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
80 * but including them here has the side-effect of getting them
81 * into the internal Xlib cache
83 static const char *const precache_atoms[] = {
94 "_NET_CURRENT_DESKTOP",
105 "_NET_WM_STATE_ABOVE",
106 "_NET_WM_STATE_BELOW",
107 "_NET_WM_STATE_FULLSCREEN",
108 "_NET_WM_STATE_MODAL",
109 "_NET_WM_STATE_MAXIMIZED_VERT",
110 "_NET_WM_STATE_MAXIMIZED_HORZ",
111 "_NET_WM_STATE_SKIP_TASKBAR",
112 "_NET_WM_STATE_SKIP_PAGER",
113 "_NET_WM_STATE_STICKY",
114 "_NET_WM_SYNC_REQUEST",
115 "_NET_WM_SYNC_REQUEST_COUNTER",
116 "_NET_WM_WINDOW_TYPE",
117 "_NET_WM_WINDOW_TYPE_NORMAL",
122 G_DEFINE_TYPE (GdkDisplayX11, _gdk_display_x11, 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;
134 _gdk_display_x11_init (GdkDisplayX11 *display)
140 * @display_name: the name of the display to open
141 * @returns: a #GdkDisplay, or %NULL if the display
142 * could not be opened.
149 gdk_display_open (const gchar *display_name)
153 GdkDisplayX11 *display_x11;
157 const char *sm_client_id;
159 XClassHint *class_hint;
165 xdisplay = XOpenDisplay (display_name);
169 display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
170 display_x11 = GDK_DISPLAY_X11 (display);
172 display_x11->use_xshm = TRUE;
173 display_x11->xdisplay = xdisplay;
176 /* Set up handlers for Xlib internal connections */
177 XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
178 #endif /* HAVE_X11R6 */
180 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
182 /* RandR must be initialized before we initialize the screens */
183 display_x11->have_randr13 = FALSE;
185 if (XRRQueryExtension (display_x11->xdisplay,
186 &display_x11->xrandr_event_base, &ignore))
190 XRRQueryVersion (display_x11->xdisplay, &major, &minor);
192 if ((major == 1 && minor >= 3) || major > 1)
193 display_x11->have_randr13 = TRUE;
195 gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
199 /* initialize the display's screens */
200 display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
201 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
202 display_x11->screens[i] = _gdk_x11_screen_new (display, i);
204 /* We need to initialize events after we have the screen
205 * structures in places
207 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
208 _gdk_x11_events_init_screen (display_x11->screens[i]);
210 /*set the default screen */
211 display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
213 attr.window_type = GDK_WINDOW_TOPLEVEL;
214 attr.wclass = GDK_INPUT_OUTPUT;
221 display_x11->leader_gdk_window = gdk_window_new (GDK_SCREEN_X11 (display_x11->default_screen)->root_window,
222 &attr, GDK_WA_X | GDK_WA_Y);
223 (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
225 display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
227 display_x11->leader_window_title_set = FALSE;
229 display_x11->have_render = GDK_UNKNOWN;
232 if (XFixesQueryExtension (display_x11->xdisplay,
233 &display_x11->xfixes_event_base,
236 display_x11->have_xfixes = TRUE;
238 gdk_x11_register_standard_event_type (display,
239 display_x11->xfixes_event_base,
244 display_x11->have_xfixes = FALSE;
246 #ifdef HAVE_XCOMPOSITE
247 if (XCompositeQueryExtension (display_x11->xdisplay,
252 XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
254 /* Prior to Composite version 0.4, composited windows clipped their
255 * parents, so you had to use IncludeInferiors to draw to the parent
256 * This isn't useful for our purposes, so require 0.4
258 display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
262 display_x11->have_xcomposite = FALSE;
265 if (XDamageQueryExtension (display_x11->xdisplay,
266 &display_x11->xdamage_event_base,
269 display_x11->have_xdamage = TRUE;
271 gdk_x11_register_standard_event_type (display,
272 display_x11->xdamage_event_base,
273 XDamageNumberEvents);
277 display_x11->have_xdamage = FALSE;
279 display_x11->have_shapes = FALSE;
280 display_x11->have_input_shapes = FALSE;
282 if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &ignore, &ignore))
284 display_x11->have_shapes = TRUE;
286 if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
287 display_x11->have_input_shapes = (maj == 1 && min >= 1);
291 display_x11->trusted_client = TRUE;
294 int rootx, rooty, winx, winy;
297 gdk_error_trap_push ();
298 XQueryPointer (display_x11->xdisplay,
299 GDK_SCREEN_X11 (display_x11->default_screen)->xroot_window,
300 &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
302 if (G_UNLIKELY (gdk_error_trap_pop () == BadWindow))
304 g_warning ("Connection to display %s appears to be untrusted. Pointer and keyboard grabs and inter-client communication may not work as expected.", gdk_display_get_name (display));
305 display_x11->trusted_client = FALSE;
309 if (_gdk_synchronize)
310 XSynchronize (display_x11->xdisplay, True);
312 class_hint = XAllocClassHint();
313 class_hint->res_name = g_get_prgname ();
315 class_hint->res_class = (char *)gdk_get_program_class ();
317 /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
318 * from argv[0], so we just synthesize an argument array here.
321 argv[0] = g_get_prgname ();
323 XmbSetWMProperties (display_x11->xdisplay,
324 display_x11->leader_window,
325 NULL, NULL, argv, argc, NULL, NULL,
329 sm_client_id = _gdk_get_sm_client_id ();
331 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
334 XChangeProperty (display_x11->xdisplay,
335 display_x11->leader_window,
336 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
337 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
339 /* We don't yet know a valid time. */
340 display_x11->user_time = 0;
344 gint xkb_major = XkbMajorVersion;
345 gint xkb_minor = XkbMinorVersion;
346 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
348 xkb_major = XkbMajorVersion;
349 xkb_minor = XkbMinorVersion;
351 if (XkbQueryExtension (display_x11->xdisplay,
352 NULL, &display_x11->xkb_event_type, NULL,
353 &xkb_major, &xkb_minor))
355 Bool detectable_autorepeat_supported;
357 display_x11->use_xkb = TRUE;
359 XkbSelectEvents (display_x11->xdisplay,
361 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
362 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
364 /* keep this in sync with _gdk_keymap_state_changed() */
365 XkbSelectEventDetails (display_x11->xdisplay,
366 XkbUseCoreKbd, XkbStateNotify,
367 XkbAllStateComponentsMask,
368 XkbGroupLockMask|XkbModifierLockMask);
370 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
372 &detectable_autorepeat_supported);
374 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
375 detectable_autorepeat_supported ?
376 "supported" : "not supported"));
378 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
384 display_x11->use_sync = FALSE;
388 int error_base, event_base;
390 if (XSyncQueryExtension (display_x11->xdisplay,
391 &event_base, &error_base) &&
392 XSyncInitialize (display_x11->xdisplay,
394 display_x11->use_sync = TRUE;
398 _gdk_windowing_image_init (display);
399 _gdk_events_init (display);
400 _gdk_input_init (display);
401 _gdk_dnd_init (display);
403 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
404 gdk_display_request_selection_notification (display,
405 GDK_SCREEN_X11 (display_x11->screens[i])->cm_selection_atom);
407 g_signal_emit_by_name (gdk_display_manager_get(),
408 "display_opened", display);
415 * XLib internal connection handling
417 typedef struct _GdkInternalConnection GdkInternalConnection;
419 struct _GdkInternalConnection
427 process_internal_connection (GIOChannel *gioc,
431 GdkInternalConnection *connection = (GdkInternalConnection *)data;
433 GDK_THREADS_ENTER ();
435 XProcessInternalConnection ((Display*)connection->display, connection->fd);
437 GDK_THREADS_LEAVE ();
442 static GdkInternalConnection *
443 gdk_add_connection_handler (Display *display,
446 GIOChannel *io_channel;
447 GdkInternalConnection *connection;
449 connection = g_new (GdkInternalConnection, 1);
452 connection->display = display;
454 io_channel = g_io_channel_unix_new (fd);
456 connection->source = g_io_create_watch (io_channel, G_IO_IN);
457 g_source_set_callback (connection->source,
458 (GSourceFunc)process_internal_connection, connection, NULL);
459 g_source_attach (connection->source, NULL);
461 g_io_channel_unref (io_channel);
467 gdk_remove_connection_handler (GdkInternalConnection *connection)
469 g_source_destroy (connection->source);
474 gdk_internal_connection_watch (Display *display,
478 XPointer *watch_data)
481 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
483 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
485 #endif /* HAVE_X11R6 */
488 * gdk_display_get_name:
489 * @display: a #GdkDisplay
491 * Gets the name of the display.
493 * Returns: a string representing the display name. This string is owned
494 * by GDK and should not be modified or freed.
498 G_CONST_RETURN gchar *
499 gdk_display_get_name (GdkDisplay *display)
501 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
503 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
507 * gdk_display_get_n_screens:
508 * @display: a #GdkDisplay
510 * Gets the number of screen managed by the @display.
512 * Returns: number of screens.
517 gdk_display_get_n_screens (GdkDisplay *display)
519 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
521 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
525 * gdk_display_get_screen:
526 * @display: a #GdkDisplay
527 * @screen_num: the screen number
529 * Returns a screen object for one of the screens of the display.
531 * Returns: the #GdkScreen object
536 gdk_display_get_screen (GdkDisplay *display,
539 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
540 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
542 return GDK_DISPLAY_X11 (display)->screens[screen_num];
546 * gdk_display_get_default_screen:
547 * @display: a #GdkDisplay
549 * Get the default #GdkScreen for @display.
551 * Returns: the default #GdkScreen object for @display
556 gdk_display_get_default_screen (GdkDisplay *display)
558 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
560 return GDK_DISPLAY_X11 (display)->default_screen;
564 _gdk_x11_display_is_root_window (GdkDisplay *display,
567 GdkDisplayX11 *display_x11;
570 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
572 display_x11 = GDK_DISPLAY_X11 (display);
574 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
576 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
582 #define XSERVER_TIME_IS_LATER(time1, time2) \
583 ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
584 (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
588 * gdk_display_pointer_ungrab:
589 * @display: a #GdkDisplay.
590 * @time_: a timestap (e.g. %GDK_CURRENT_TIME).
592 * Release any pointer grab.
597 gdk_display_pointer_ungrab (GdkDisplay *display,
601 GdkDisplayX11 *display_x11;
603 g_return_if_fail (GDK_IS_DISPLAY (display));
605 display_x11 = GDK_DISPLAY_X11 (display);
606 xdisplay = GDK_DISPLAY_XDISPLAY (display);
608 _gdk_input_ungrab_pointer (display, time);
609 XUngrabPointer (xdisplay, time);
612 if (time == GDK_CURRENT_TIME ||
613 display_x11->pointer_xgrab_time == GDK_CURRENT_TIME ||
614 !XSERVER_TIME_IS_LATER (display_x11->pointer_xgrab_time, time))
615 display_x11->pointer_xgrab_window = NULL;
619 * gdk_display_pointer_is_grabbed:
620 * @display: a #GdkDisplay
622 * Test if the pointer is grabbed.
624 * Returns: %TRUE if an active X pointer grab is in effect
629 gdk_display_pointer_is_grabbed (GdkDisplay *display)
631 g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
633 return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL &&
634 !GDK_DISPLAY_X11 (display)->pointer_xgrab_implicit);
638 * gdk_display_keyboard_ungrab:
639 * @display: a #GdkDisplay.
640 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
642 * Release any keyboard grab
647 gdk_display_keyboard_ungrab (GdkDisplay *display,
651 GdkDisplayX11 *display_x11;
653 g_return_if_fail (GDK_IS_DISPLAY (display));
655 display_x11 = GDK_DISPLAY_X11 (display);
656 xdisplay = GDK_DISPLAY_XDISPLAY (display);
658 XUngrabKeyboard (xdisplay, time);
661 if (time == GDK_CURRENT_TIME ||
662 display_x11->keyboard_xgrab_time == GDK_CURRENT_TIME ||
663 !XSERVER_TIME_IS_LATER (display_x11->keyboard_xgrab_time, time))
664 display_x11->keyboard_xgrab_window = NULL;
669 * @display: a #GdkDisplay
671 * Emits a short beep on @display
676 gdk_display_beep (GdkDisplay *display)
678 g_return_if_fail (GDK_IS_DISPLAY (display));
680 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
685 * @display: a #GdkDisplay
687 * Flushes any requests queued for the windowing system and waits until all
688 * requests have been handled. This is often used for making sure that the
689 * display is synchronized with the current state of the program. Calling
690 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
691 * generated from earlier requests are handled before the error trap is
694 * This is most useful for X11. On windowing systems where requests are
695 * handled synchronously, this function will do nothing.
700 gdk_display_sync (GdkDisplay *display)
702 g_return_if_fail (GDK_IS_DISPLAY (display));
704 XSync (GDK_DISPLAY_XDISPLAY (display), False);
709 * @display: a #GdkDisplay
711 * Flushes any requests queued for the windowing system; this happens automatically
712 * when the main loop blocks waiting for new events, but if your application
713 * is drawing without returning control to the main loop, you may need
714 * to call this function explicitely. A common case where this function
715 * needs to be called is when an application is executing drawing commands
716 * from a thread other than the thread where the main loop is running.
718 * This is most useful for X11. On windowing systems where requests are
719 * handled synchronously, this function will do nothing.
724 gdk_display_flush (GdkDisplay *display)
726 g_return_if_fail (GDK_IS_DISPLAY (display));
728 if (!display->closed)
729 XFlush (GDK_DISPLAY_XDISPLAY (display));
733 * gdk_display_get_default_group:
734 * @display: a #GdkDisplay
736 * Returns the default group leader window for all toplevel windows
737 * on @display. This window is implicitly created by GDK.
738 * See gdk_window_set_group().
740 * Return value: The default group leader window for @display
745 gdk_display_get_default_group (GdkDisplay *display)
747 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
749 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
753 * gdk_x11_display_grab:
754 * @display: a #GdkDisplay
756 * Call XGrabServer() on @display.
757 * To ungrab the display again, use gdk_x11_display_ungrab().
759 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
764 gdk_x11_display_grab (GdkDisplay *display)
766 GdkDisplayX11 *display_x11;
768 g_return_if_fail (GDK_IS_DISPLAY (display));
770 display_x11 = GDK_DISPLAY_X11 (display);
772 if (display_x11->grab_count == 0)
773 XGrabServer (display_x11->xdisplay);
774 display_x11->grab_count++;
778 * gdk_x11_display_ungrab:
779 * @display: a #GdkDisplay
781 * Ungrab @display after it has been grabbed with
782 * gdk_x11_display_grab().
787 gdk_x11_display_ungrab (GdkDisplay *display)
789 GdkDisplayX11 *display_x11;
791 g_return_if_fail (GDK_IS_DISPLAY (display));
793 display_x11 = GDK_DISPLAY_X11 (display);;
794 g_return_if_fail (display_x11->grab_count > 0);
796 display_x11->grab_count--;
797 if (display_x11->grab_count == 0)
799 XUngrabServer (display_x11->xdisplay);
800 XFlush (display_x11->xdisplay);
805 gdk_display_x11_dispose (GObject *object)
807 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
810 g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
812 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
813 _gdk_screen_close (display_x11->screens[i]);
815 _gdk_events_uninit (GDK_DISPLAY_OBJECT (object));
817 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->dispose (object);
821 gdk_display_x11_finalize (GObject *object)
823 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
827 if (display_x11->keymap)
828 g_object_unref (display_x11->keymap);
831 if (display_x11->motif_target_lists)
833 for (i = 0; i < display_x11->motif_n_target_lists; i++)
834 g_list_free (display_x11->motif_target_lists[i]);
835 g_free (display_x11->motif_target_lists);
838 _gdk_x11_cursor_display_finalize (GDK_DISPLAY_OBJECT(display_x11));
841 g_hash_table_destroy (display_x11->atom_from_virtual);
842 g_hash_table_destroy (display_x11->atom_to_virtual);
845 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
847 /* list of filters for client messages */
848 g_list_foreach (display_x11->client_filters, (GFunc) g_free, NULL);
849 g_list_free (display_x11->client_filters);
851 /* List of event window extraction functions */
852 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
853 g_slist_free (display_x11->event_types);
855 /* input GdkDevice list */
856 g_list_foreach (display_x11->input_devices, (GFunc) g_object_unref, NULL);
857 g_list_free (display_x11->input_devices);
859 /* input GdkWindow list */
860 g_list_foreach (display_x11->input_windows, (GFunc) g_free, NULL);
861 g_list_free (display_x11->input_windows);
863 /* Free all GdkScreens */
864 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
865 g_object_unref (display_x11->screens[i]);
866 g_free (display_x11->screens);
868 g_free (display_x11->startup_notification_id);
871 g_hash_table_destroy (display_x11->xid_ht);
873 XCloseDisplay (display_x11->xdisplay);
875 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->finalize (object);
879 * gdk_x11_lookup_xdisplay:
880 * @xdisplay: a pointer to an X Display
882 * Find the #GdkDisplay corresponding to @display, if any exists.
884 * Return value: the #GdkDisplay, if found, otherwise %NULL.
889 gdk_x11_lookup_xdisplay (Display *xdisplay)
893 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
895 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
896 return tmp_list->data;
903 * _gdk_x11_display_screen_for_xrootwin:
904 * @display: a #GdkDisplay
905 * @xrootwin: window ID for one of of the screen's of the display.
907 * Given the root window ID of one of the screen's of a #GdkDisplay,
910 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
913 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
918 for (i = 0; i < ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay); i++)
920 GdkScreen *screen = gdk_display_get_screen (display, i);
921 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
929 * gdk_x11_display_get_xdisplay:
930 * @display: a #GdkDisplay
931 * @returns: an X display.
933 * Returns the X display of a #GdkDisplay.
938 gdk_x11_display_get_xdisplay (GdkDisplay *display)
940 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
941 return GDK_DISPLAY_X11 (display)->xdisplay;
945 _gdk_windowing_set_default_display (GdkDisplay *display)
947 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
948 const gchar *startup_id;
956 gdk_display = GDK_DISPLAY_XDISPLAY (display);
958 g_free (display_x11->startup_notification_id);
959 display_x11->startup_notification_id = NULL;
961 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
962 if (startup_id && *startup_id != '\0')
966 if (!g_utf8_validate (startup_id, -1, NULL))
967 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
969 display_x11->startup_notification_id = g_strdup (startup_id);
971 /* Find the launch time from the startup_id, if it's there. Newer spec
972 * states that the startup_id is of the form <unique>_TIME<timestamp>
974 time_str = g_strrstr (startup_id, "_TIME");
975 if (time_str != NULL)
981 /* Skip past the "_TIME" part */
984 retval = strtoul (time_str, &end, 0);
985 if (end != time_str && errno == 0)
986 display_x11->user_time = retval;
989 /* Clear the environment variable so it won't be inherited by
990 * child processes and confuse things.
992 g_unsetenv ("DESKTOP_STARTUP_ID");
994 /* Set the startup id on the leader window so it
995 * applies to all windows we create on this display
997 XChangeProperty (display_x11->xdisplay,
998 display_x11->leader_window,
999 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
1000 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
1002 (guchar *)startup_id, strlen (startup_id));
1007 broadcast_xmessage (GdkDisplay *display,
1008 const char *message_type,
1009 const char *message_type_begin,
1010 const char *message)
1012 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1013 GdkScreen *screen = gdk_display_get_default_screen (display);
1014 GdkWindow *root_window = gdk_screen_get_root_window (screen);
1015 Window xroot_window = GDK_WINDOW_XID (root_window);
1018 Atom type_atom_begin;
1021 if (!G_LIKELY (GDK_DISPLAY_X11 (display)->trusted_client))
1025 XSetWindowAttributes attrs;
1027 attrs.override_redirect = True;
1028 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1031 XCreateWindow (xdisplay,
1037 (Visual *)CopyFromParent,
1038 CWOverrideRedirect | CWEventMask,
1042 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
1044 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
1045 message_type_begin);
1048 XClientMessageEvent xclient;
1050 const char *src_end;
1054 memset(&xclient, 0, sizeof (xclient));
1055 xclient.type = ClientMessage;
1056 xclient.message_type = type_atom_begin;
1057 xclient.display =xdisplay;
1058 xclient.window = xwindow;
1062 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
1064 while (src != src_end)
1066 dest = &xclient.data.b[0];
1067 dest_end = dest + 20;
1069 while (dest != dest_end &&
1077 while (dest != dest_end)
1083 XSendEvent (xdisplay,
1087 (XEvent *)&xclient);
1089 xclient.message_type = type_atom;
1093 XDestroyWindow (xdisplay, xwindow);
1098 * gdk_x11_display_broadcast_startup_message:
1099 * @display: a #GdkDisplay
1100 * @message_type: startup notification message type ("new", "change",
1102 * @...: a list of key/value pairs (as strings), terminated by a
1103 * %NULL key. (A %NULL value for a key will cause that key to be
1104 * skipped in the output.)
1106 * Sends a startup notification message of type @message_type to
1109 * This is a convenience function for use by code that implements the
1110 * freedesktop startup notification specification. Applications should
1111 * not normally need to call it directly. See the <ulink
1112 * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
1113 * Notification Protocol specification</ulink> for
1114 * definitions of the message types and keys that can be used.
1119 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
1120 const char *message_type,
1125 const char *key, *value, *p;
1127 message = g_string_new (message_type);
1128 g_string_append_c (message, ':');
1130 va_start (ap, message_type);
1131 while ((key = va_arg (ap, const char *)))
1133 value = va_arg (ap, const char *);
1137 g_string_append_printf (message, " %s=\"", key);
1138 for (p = value; *p; p++)
1145 g_string_append_c (message, '\\');
1149 g_string_append_c (message, *p);
1151 g_string_append_c (message, '\"');
1155 broadcast_xmessage (display,
1156 "_NET_STARTUP_INFO",
1157 "_NET_STARTUP_INFO_BEGIN",
1160 g_string_free (message, TRUE);
1164 * gdk_notify_startup_complete:
1166 * Indicates to the GUI environment that the application has finished
1167 * loading. If the applications opens windows, this function is
1168 * normally called after opening the application's initial set of
1171 * GTK+ will call this function automatically after opening the first
1172 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
1173 * to disable that feature.
1178 gdk_notify_startup_complete (void)
1180 GdkDisplay *display;
1181 GdkDisplayX11 *display_x11;
1183 display = gdk_display_get_default ();
1187 display_x11 = GDK_DISPLAY_X11 (display);
1189 if (display_x11->startup_notification_id == NULL)
1192 gdk_notify_startup_complete_with_id (display_x11->startup_notification_id);
1196 * gdk_notify_startup_complete_with_id:
1197 * @startup_id: a startup-notification identifier, for which notification
1198 * process should be completed
1200 * Indicates to the GUI environment that the application has finished
1201 * loading, using a given identifier.
1203 * GTK+ will call this function automatically for #GtkWindow with custom
1204 * startup-notification identifier unless
1205 * gtk_window_set_auto_startup_notification() is called to disable
1211 gdk_notify_startup_complete_with_id (const gchar* startup_id)
1213 GdkDisplay *display;
1215 display = gdk_display_get_default ();
1219 gdk_x11_display_broadcast_startup_message (display, "remove",
1225 * gdk_display_supports_selection_notification:
1226 * @display: a #GdkDisplay
1228 * Returns whether #GdkEventOwnerChange events will be
1229 * sent when the owner of a selection changes.
1231 * Return value: whether #GdkEventOwnerChange events will
1237 gdk_display_supports_selection_notification (GdkDisplay *display)
1239 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1241 return display_x11->have_xfixes;
1245 * gdk_display_request_selection_notification:
1246 * @display: a #GdkDisplay
1247 * @selection: the #GdkAtom naming the selection for which
1248 * ownership change notification is requested
1250 * Request #GdkEventOwnerChange events for ownership changes
1251 * of the selection named by the given atom.
1253 * Return value: whether #GdkEventOwnerChange events will
1259 gdk_display_request_selection_notification (GdkDisplay *display,
1264 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1267 if (display_x11->have_xfixes)
1269 atom = gdk_x11_atom_to_xatom_for_display (display,
1271 XFixesSelectSelectionInput (display_x11->xdisplay,
1272 display_x11->leader_window,
1274 XFixesSetSelectionOwnerNotifyMask |
1275 XFixesSelectionWindowDestroyNotifyMask |
1276 XFixesSelectionClientCloseNotifyMask);
1285 * gdk_display_supports_clipboard_persistence
1286 * @display: a #GdkDisplay
1288 * Returns whether the speicifed display supports clipboard
1289 * persistance; i.e. if it's possible to store the clipboard data after an
1290 * application has quit. On X11 this checks if a clipboard daemon is
1293 * Returns: %TRUE if the display supports clipboard persistance.
1298 gdk_display_supports_clipboard_persistence (GdkDisplay *display)
1300 Atom clipboard_manager;
1302 /* It might make sense to cache this */
1303 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1304 return XGetSelectionOwner (GDK_DISPLAY_X11 (display)->xdisplay, clipboard_manager) != None;
1308 * gdk_display_store_clipboard
1309 * @display: a #GdkDisplay
1310 * @clipboard_window: a #GdkWindow belonging to the clipboard owner
1311 * @time_: a timestamp
1312 * @targets: an array of targets that should be saved, or %NULL
1313 * if all available targets should be saved.
1314 * @n_targets: length of the @targets array
1316 * Issues a request to the clipboard manager to store the
1317 * clipboard data. On X11, this is a special program that works
1318 * according to the freedesktop clipboard specification, available at
1319 * <ulink url="http://www.freedesktop.org/Standards/clipboard-manager-spec">
1320 * http://www.freedesktop.org/Standards/clipboard-manager-spec</ulink>.
1325 gdk_display_store_clipboard (GdkDisplay *display,
1326 GdkWindow *clipboard_window,
1328 const GdkAtom *targets,
1331 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1332 Atom clipboard_manager, save_targets;
1334 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1335 save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
1337 gdk_error_trap_push ();
1339 if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
1341 Atom property_name = None;
1347 property_name = gdk_x11_atom_to_xatom_for_display (display, _gdk_selection_property);
1349 xatoms = g_new (Atom, n_targets);
1350 for (i = 0; i < n_targets; i++)
1351 xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
1353 XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
1354 property_name, XA_ATOM,
1355 32, PropModeReplace, (guchar *)xatoms, n_targets);
1360 XConvertSelection (display_x11->xdisplay,
1361 clipboard_manager, save_targets, property_name,
1362 GDK_WINDOW_XID (clipboard_window), time_);
1365 gdk_error_trap_pop ();
1370 * gdk_x11_display_get_user_time:
1371 * @display: a #GdkDisplay
1373 * Returns the timestamp of the last user interaction on
1374 * @display. The timestamp is taken from events caused
1375 * by user interaction such as key presses or pointer
1376 * movements. See gdk_x11_window_set_user_time().
1378 * Returns: the timestamp of the last user interaction
1383 gdk_x11_display_get_user_time (GdkDisplay *display)
1385 return GDK_DISPLAY_X11 (display)->user_time;
1389 * gdk_display_supports_shapes:
1390 * @display: a #GdkDisplay
1392 * Returns %TRUE if gdk_window_shape_combine_mask() can
1393 * be used to create shaped windows on @display.
1395 * Returns: %TRUE if shaped windows are supported
1400 gdk_display_supports_shapes (GdkDisplay *display)
1402 return GDK_DISPLAY_X11 (display)->have_shapes;
1406 * gdk_display_supports_input_shapes:
1407 * @display: a #GdkDisplay
1409 * Returns %TRUE if gdk_window_input_shape_combine_mask() can
1410 * be used to modify the input shape of windows on @display.
1412 * Returns: %TRUE if windows with modified input shape are supported
1417 gdk_display_supports_input_shapes (GdkDisplay *display)
1419 return GDK_DISPLAY_X11 (display)->have_input_shapes;
1424 * gdk_x11_display_get_startup_notification_id:
1425 * @display: a #GdkDisplay
1427 * Gets the startup notification ID for a display.
1429 * Returns: the startup notification ID for @display
1433 G_CONST_RETURN gchar *
1434 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
1436 return GDK_DISPLAY_X11 (display)->startup_notification_id;
1440 * gdk_display_supports_composite:
1441 * @display: a #GdkDisplay
1443 * Returns %TRUE if gdk_window_set_composited() can be used
1444 * to redirect drawing on the window using compositing.
1446 * Currently this only works on X11 with XComposite and
1447 * XDamage extensions available.
1449 * Returns: %TRUE if windows may be composited.
1454 gdk_display_supports_composite (GdkDisplay *display)
1456 GdkDisplayX11 *x11_display = GDK_DISPLAY_X11 (display);
1458 return x11_display->have_xcomposite &&
1459 x11_display->have_xdamage &&
1460 x11_display->have_xfixes;
1464 #define __GDK_DISPLAY_X11_C__
1465 #include "gdkaliasdef.c"