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.
35 #include "gdkdisplay.h"
36 #include "gdkdisplay-x11.h"
37 #include "gdkscreen.h"
38 #include "gdkscreen-x11.h"
39 #include "gdkinternals.h"
40 #include "gdkinputprivate.h"
41 #include "xsettings-client.h"
44 #include <X11/Xatom.h>
47 #include <X11/XKBlib.h>
51 #include <X11/extensions/Xfixes.h>
54 #include <X11/extensions/shape.h>
56 #ifdef HAVE_XCOMPOSITE
57 #include <X11/extensions/Xcomposite.h>
61 #include <X11/extensions/Xdamage.h>
65 #include <X11/extensions/Xrandr.h>
69 static void gdk_display_x11_dispose (GObject *object);
70 static void gdk_display_x11_finalize (GObject *object);
73 static void gdk_internal_connection_watch (Display *display,
77 XPointer *watch_data);
78 #endif /* HAVE_X11R6 */
80 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
81 * but including them here has the side-effect of getting them
82 * into the internal Xlib cache
84 static const char *const precache_atoms[] = {
95 "_NET_CURRENT_DESKTOP",
106 "_NET_WM_STATE_ABOVE",
107 "_NET_WM_STATE_BELOW",
108 "_NET_WM_STATE_FULLSCREEN",
109 "_NET_WM_STATE_MODAL",
110 "_NET_WM_STATE_MAXIMIZED_VERT",
111 "_NET_WM_STATE_MAXIMIZED_HORZ",
112 "_NET_WM_STATE_SKIP_TASKBAR",
113 "_NET_WM_STATE_SKIP_PAGER",
114 "_NET_WM_STATE_STICKY",
115 "_NET_WM_SYNC_REQUEST",
116 "_NET_WM_SYNC_REQUEST_COUNTER",
117 "_NET_WM_WINDOW_TYPE",
118 "_NET_WM_WINDOW_TYPE_NORMAL",
123 G_DEFINE_TYPE (GdkDisplayX11, _gdk_display_x11, GDK_TYPE_DISPLAY)
126 _gdk_display_x11_class_init (GdkDisplayX11Class * class)
128 GObjectClass *object_class = G_OBJECT_CLASS (class);
130 object_class->dispose = gdk_display_x11_dispose;
131 object_class->finalize = gdk_display_x11_finalize;
135 _gdk_display_x11_init (GdkDisplayX11 *display)
141 * @display_name: the name of the display to open
142 * @returns: a #GdkDisplay, or %NULL if the display
143 * could not be opened.
150 gdk_display_open (const gchar *display_name)
154 GdkDisplayX11 *display_x11;
158 const char *sm_client_id;
160 XClassHint *class_hint;
166 xdisplay = XOpenDisplay (display_name);
170 display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
171 display_x11 = GDK_DISPLAY_X11 (display);
173 display_x11->use_xshm = TRUE;
174 display_x11->xdisplay = xdisplay;
177 /* Set up handlers for Xlib internal connections */
178 XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
179 #endif /* HAVE_X11R6 */
181 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
183 /* RandR must be initialized before we initialize the screens */
184 display_x11->have_randr13 = FALSE;
186 if (XRRQueryExtension (display_x11->xdisplay,
187 &display_x11->xrandr_event_base, &ignore))
191 XRRQueryVersion (display_x11->xdisplay, &major, &minor);
193 if ((major == 1 && minor >= 3) || major > 1)
194 display_x11->have_randr13 = TRUE;
196 gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
200 /* initialize the display's screens */
201 display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
202 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
203 display_x11->screens[i] = _gdk_x11_screen_new (display, i);
205 /* We need to initialize events after we have the screen
206 * structures in places
208 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
209 _gdk_x11_events_init_screen (display_x11->screens[i]);
211 /*set the default screen */
212 display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
214 attr.window_type = GDK_WINDOW_TOPLEVEL;
215 attr.wclass = GDK_INPUT_OUTPUT;
222 display_x11->leader_gdk_window = gdk_window_new (GDK_SCREEN_X11 (display_x11->default_screen)->root_window,
223 &attr, GDK_WA_X | GDK_WA_Y);
224 (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
226 display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
228 display_x11->leader_window_title_set = FALSE;
230 display_x11->have_render = GDK_UNKNOWN;
233 if (XFixesQueryExtension (display_x11->xdisplay,
234 &display_x11->xfixes_event_base,
237 display_x11->have_xfixes = TRUE;
239 gdk_x11_register_standard_event_type (display,
240 display_x11->xfixes_event_base,
245 display_x11->have_xfixes = FALSE;
247 #ifdef HAVE_XCOMPOSITE
248 if (XCompositeQueryExtension (display_x11->xdisplay,
253 XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
255 /* Prior to Composite version 0.4, composited windows clipped their
256 * parents, so you had to use IncludeInferiors to draw to the parent
257 * This isn't useful for our purposes, so require 0.4
259 display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
263 display_x11->have_xcomposite = FALSE;
266 if (XDamageQueryExtension (display_x11->xdisplay,
267 &display_x11->xdamage_event_base,
270 display_x11->have_xdamage = TRUE;
272 gdk_x11_register_standard_event_type (display,
273 display_x11->xdamage_event_base,
274 XDamageNumberEvents);
278 display_x11->have_xdamage = FALSE;
280 display_x11->have_shapes = FALSE;
281 display_x11->have_input_shapes = FALSE;
283 if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
285 display_x11->have_shapes = TRUE;
287 if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
288 display_x11->have_input_shapes = (maj == 1 && min >= 1);
292 display_x11->trusted_client = TRUE;
295 int rootx, rooty, winx, winy;
298 gdk_error_trap_push ();
299 XQueryPointer (display_x11->xdisplay,
300 GDK_SCREEN_X11 (display_x11->default_screen)->xroot_window,
301 &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
303 if (G_UNLIKELY (gdk_error_trap_pop () == BadWindow))
305 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));
306 display_x11->trusted_client = FALSE;
310 if (_gdk_synchronize)
311 XSynchronize (display_x11->xdisplay, True);
313 class_hint = XAllocClassHint();
314 class_hint->res_name = g_get_prgname ();
316 class_hint->res_class = (char *)gdk_get_program_class ();
318 /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
319 * from argv[0], so we just synthesize an argument array here.
322 argv[0] = g_get_prgname ();
324 XmbSetWMProperties (display_x11->xdisplay,
325 display_x11->leader_window,
326 NULL, NULL, argv, argc, NULL, NULL,
330 sm_client_id = _gdk_get_sm_client_id ();
332 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
335 XChangeProperty (display_x11->xdisplay,
336 display_x11->leader_window,
337 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
338 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
340 /* We don't yet know a valid time. */
341 display_x11->user_time = 0;
345 gint xkb_major = XkbMajorVersion;
346 gint xkb_minor = XkbMinorVersion;
347 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
349 xkb_major = XkbMajorVersion;
350 xkb_minor = XkbMinorVersion;
352 if (XkbQueryExtension (display_x11->xdisplay,
353 NULL, &display_x11->xkb_event_type, NULL,
354 &xkb_major, &xkb_minor))
356 Bool detectable_autorepeat_supported;
358 display_x11->use_xkb = TRUE;
360 XkbSelectEvents (display_x11->xdisplay,
362 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
363 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
365 /* keep this in sync with _gdk_keymap_state_changed() */
366 XkbSelectEventDetails (display_x11->xdisplay,
367 XkbUseCoreKbd, XkbStateNotify,
368 XkbAllStateComponentsMask,
369 XkbGroupLockMask|XkbModifierLockMask);
371 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
373 &detectable_autorepeat_supported);
375 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
376 detectable_autorepeat_supported ?
377 "supported" : "not supported"));
379 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
385 display_x11->use_sync = FALSE;
389 int error_base, event_base;
391 if (XSyncQueryExtension (display_x11->xdisplay,
392 &event_base, &error_base) &&
393 XSyncInitialize (display_x11->xdisplay,
395 display_x11->use_sync = TRUE;
399 _gdk_windowing_image_init (display);
400 _gdk_events_init (display);
401 _gdk_input_init (display);
402 _gdk_dnd_init (display);
404 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
405 _gdk_x11_screen_setup (display_x11->screens[i]);
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 ();
443 _gdk_windowing_window_get_next_serial (GdkDisplay *display)
445 return NextRequest (GDK_DISPLAY_XDISPLAY (display));
449 static GdkInternalConnection *
450 gdk_add_connection_handler (Display *display,
453 GIOChannel *io_channel;
454 GdkInternalConnection *connection;
456 connection = g_new (GdkInternalConnection, 1);
459 connection->display = display;
461 io_channel = g_io_channel_unix_new (fd);
463 connection->source = g_io_create_watch (io_channel, G_IO_IN);
464 g_source_set_callback (connection->source,
465 (GSourceFunc)process_internal_connection, connection, NULL);
466 g_source_attach (connection->source, NULL);
468 g_io_channel_unref (io_channel);
474 gdk_remove_connection_handler (GdkInternalConnection *connection)
476 g_source_destroy (connection->source);
481 gdk_internal_connection_watch (Display *display,
485 XPointer *watch_data)
488 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
490 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
492 #endif /* HAVE_X11R6 */
495 * gdk_display_get_name:
496 * @display: a #GdkDisplay
498 * Gets the name of the display.
500 * Returns: a string representing the display name. This string is owned
501 * by GDK and should not be modified or freed.
505 G_CONST_RETURN gchar *
506 gdk_display_get_name (GdkDisplay *display)
508 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
510 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
514 * gdk_display_get_n_screens:
515 * @display: a #GdkDisplay
517 * Gets the number of screen managed by the @display.
519 * Returns: number of screens.
524 gdk_display_get_n_screens (GdkDisplay *display)
526 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
528 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
532 * gdk_display_get_screen:
533 * @display: a #GdkDisplay
534 * @screen_num: the screen number
536 * Returns a screen object for one of the screens of the display.
538 * Returns: the #GdkScreen object
543 gdk_display_get_screen (GdkDisplay *display,
546 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
547 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
549 return GDK_DISPLAY_X11 (display)->screens[screen_num];
553 * gdk_display_get_default_screen:
554 * @display: a #GdkDisplay
556 * Get the default #GdkScreen for @display.
558 * Returns: the default #GdkScreen object for @display
563 gdk_display_get_default_screen (GdkDisplay *display)
565 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
567 return GDK_DISPLAY_X11 (display)->default_screen;
571 _gdk_x11_display_is_root_window (GdkDisplay *display,
574 GdkDisplayX11 *display_x11;
577 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
579 display_x11 = GDK_DISPLAY_X11 (display);
581 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
583 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
589 struct XPointerUngrabInfo {
595 pointer_ungrab_callback (GdkDisplay *display,
599 _gdk_display_pointer_grab_update (display, serial);
603 #define XSERVER_TIME_IS_LATER(time1, time2) \
604 ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
605 (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
609 * gdk_display_pointer_ungrab:
610 * @display: a #GdkDisplay.
611 * @time_: a timestap (e.g. %GDK_CURRENT_TIME).
613 * Release any pointer grab.
618 gdk_display_pointer_ungrab (GdkDisplay *display,
622 GdkDisplayX11 *display_x11;
623 GdkPointerGrabInfo *grab;
624 unsigned long serial;
626 g_return_if_fail (GDK_IS_DISPLAY (display));
628 display_x11 = GDK_DISPLAY_X11 (display);
629 xdisplay = GDK_DISPLAY_XDISPLAY (display);
631 serial = NextRequest (xdisplay);
633 _gdk_input_ungrab_pointer (display, time_);
634 XUngrabPointer (xdisplay, time_);
637 grab = _gdk_display_get_last_pointer_grab (display);
639 (time_ == GDK_CURRENT_TIME ||
640 grab->time == GDK_CURRENT_TIME ||
641 !XSERVER_TIME_IS_LATER (grab->time, time_)))
643 grab->serial_end = serial;
644 _gdk_x11_roundtrip_async (display,
645 pointer_ungrab_callback,
651 * gdk_display_keyboard_ungrab:
652 * @display: a #GdkDisplay.
653 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
655 * Release any keyboard grab
660 gdk_display_keyboard_ungrab (GdkDisplay *display,
664 GdkDisplayX11 *display_x11;
666 g_return_if_fail (GDK_IS_DISPLAY (display));
668 display_x11 = GDK_DISPLAY_X11 (display);
669 xdisplay = GDK_DISPLAY_XDISPLAY (display);
671 XUngrabKeyboard (xdisplay, time);
674 if (time == GDK_CURRENT_TIME ||
675 display->keyboard_grab.time == GDK_CURRENT_TIME ||
676 !XSERVER_TIME_IS_LATER (display->keyboard_grab.time, time))
677 _gdk_display_unset_has_keyboard_grab (display, FALSE);
682 * @display: a #GdkDisplay
684 * Emits a short beep on @display
689 gdk_display_beep (GdkDisplay *display)
691 g_return_if_fail (GDK_IS_DISPLAY (display));
693 XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
698 * @display: a #GdkDisplay
700 * Flushes any requests queued for the windowing system and waits until all
701 * requests have been handled. This is often used for making sure that the
702 * display is synchronized with the current state of the program. Calling
703 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
704 * generated from earlier requests are handled before the error trap is
707 * This is most useful for X11. On windowing systems where requests are
708 * handled synchronously, this function will do nothing.
713 gdk_display_sync (GdkDisplay *display)
715 g_return_if_fail (GDK_IS_DISPLAY (display));
717 XSync (GDK_DISPLAY_XDISPLAY (display), False);
722 * @display: a #GdkDisplay
724 * Flushes any requests queued for the windowing system; this happens automatically
725 * when the main loop blocks waiting for new events, but if your application
726 * is drawing without returning control to the main loop, you may need
727 * to call this function explicitely. A common case where this function
728 * needs to be called is when an application is executing drawing commands
729 * from a thread other than the thread where the main loop is running.
731 * This is most useful for X11. On windowing systems where requests are
732 * handled synchronously, this function will do nothing.
737 gdk_display_flush (GdkDisplay *display)
739 g_return_if_fail (GDK_IS_DISPLAY (display));
741 if (!display->closed)
742 XFlush (GDK_DISPLAY_XDISPLAY (display));
746 * gdk_display_get_default_group:
747 * @display: a #GdkDisplay
749 * Returns the default group leader window for all toplevel windows
750 * on @display. This window is implicitly created by GDK.
751 * See gdk_window_set_group().
753 * Return value: The default group leader window for @display
758 gdk_display_get_default_group (GdkDisplay *display)
760 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
762 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
766 * gdk_x11_display_grab:
767 * @display: a #GdkDisplay
769 * Call XGrabServer() on @display.
770 * To ungrab the display again, use gdk_x11_display_ungrab().
772 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
777 gdk_x11_display_grab (GdkDisplay *display)
779 GdkDisplayX11 *display_x11;
781 g_return_if_fail (GDK_IS_DISPLAY (display));
783 display_x11 = GDK_DISPLAY_X11 (display);
785 if (display_x11->grab_count == 0)
786 XGrabServer (display_x11->xdisplay);
787 display_x11->grab_count++;
791 * gdk_x11_display_ungrab:
792 * @display: a #GdkDisplay
794 * Ungrab @display after it has been grabbed with
795 * gdk_x11_display_grab().
800 gdk_x11_display_ungrab (GdkDisplay *display)
802 GdkDisplayX11 *display_x11;
804 g_return_if_fail (GDK_IS_DISPLAY (display));
806 display_x11 = GDK_DISPLAY_X11 (display);;
807 g_return_if_fail (display_x11->grab_count > 0);
809 display_x11->grab_count--;
810 if (display_x11->grab_count == 0)
812 XUngrabServer (display_x11->xdisplay);
813 XFlush (display_x11->xdisplay);
818 gdk_display_x11_dispose (GObject *object)
820 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
823 g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
825 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
826 _gdk_screen_close (display_x11->screens[i]);
828 _gdk_events_uninit (GDK_DISPLAY_OBJECT (object));
830 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->dispose (object);
834 gdk_display_x11_finalize (GObject *object)
836 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
840 if (display_x11->keymap)
841 g_object_unref (display_x11->keymap);
844 if (display_x11->motif_target_lists)
846 for (i = 0; i < display_x11->motif_n_target_lists; i++)
847 g_list_free (display_x11->motif_target_lists[i]);
848 g_free (display_x11->motif_target_lists);
851 _gdk_x11_cursor_display_finalize (GDK_DISPLAY_OBJECT(display_x11));
854 g_hash_table_destroy (display_x11->atom_from_virtual);
855 g_hash_table_destroy (display_x11->atom_to_virtual);
858 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
860 /* list of filters for client messages */
861 g_list_foreach (display_x11->client_filters, (GFunc) g_free, NULL);
862 g_list_free (display_x11->client_filters);
864 /* List of event window extraction functions */
865 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
866 g_slist_free (display_x11->event_types);
868 /* input GdkDevice list */
869 g_list_foreach (display_x11->input_devices, (GFunc) g_object_unref, NULL);
870 g_list_free (display_x11->input_devices);
872 /* input GdkWindow list */
873 g_list_foreach (display_x11->input_windows, (GFunc) g_free, NULL);
874 g_list_free (display_x11->input_windows);
876 /* Free all GdkScreens */
877 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
878 g_object_unref (display_x11->screens[i]);
879 g_free (display_x11->screens);
881 g_free (display_x11->startup_notification_id);
884 g_hash_table_destroy (display_x11->xid_ht);
886 XCloseDisplay (display_x11->xdisplay);
888 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->finalize (object);
892 * gdk_x11_lookup_xdisplay:
893 * @xdisplay: a pointer to an X Display
895 * Find the #GdkDisplay corresponding to @display, if any exists.
897 * Return value: the #GdkDisplay, if found, otherwise %NULL.
902 gdk_x11_lookup_xdisplay (Display *xdisplay)
906 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
908 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
909 return tmp_list->data;
916 * _gdk_x11_display_screen_for_xrootwin:
917 * @display: a #GdkDisplay
918 * @xrootwin: window ID for one of of the screen's of the display.
920 * Given the root window ID of one of the screen's of a #GdkDisplay,
923 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
926 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
931 for (i = 0; i < ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay); i++)
933 GdkScreen *screen = gdk_display_get_screen (display, i);
934 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
942 * gdk_x11_display_get_xdisplay:
943 * @display: a #GdkDisplay
944 * @returns: an X display.
946 * Returns the X display of a #GdkDisplay.
951 gdk_x11_display_get_xdisplay (GdkDisplay *display)
953 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
954 return GDK_DISPLAY_X11 (display)->xdisplay;
958 _gdk_windowing_set_default_display (GdkDisplay *display)
960 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
961 const gchar *startup_id;
969 gdk_display = GDK_DISPLAY_XDISPLAY (display);
971 g_free (display_x11->startup_notification_id);
972 display_x11->startup_notification_id = NULL;
974 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
975 if (startup_id && *startup_id != '\0')
979 if (!g_utf8_validate (startup_id, -1, NULL))
980 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
982 display_x11->startup_notification_id = g_strdup (startup_id);
984 /* Find the launch time from the startup_id, if it's there. Newer spec
985 * states that the startup_id is of the form <unique>_TIME<timestamp>
987 time_str = g_strrstr (startup_id, "_TIME");
988 if (time_str != NULL)
994 /* Skip past the "_TIME" part */
997 retval = strtoul (time_str, &end, 0);
998 if (end != time_str && errno == 0)
999 display_x11->user_time = retval;
1002 /* Clear the environment variable so it won't be inherited by
1003 * child processes and confuse things.
1005 g_unsetenv ("DESKTOP_STARTUP_ID");
1007 /* Set the startup id on the leader window so it
1008 * applies to all windows we create on this display
1010 XChangeProperty (display_x11->xdisplay,
1011 display_x11->leader_window,
1012 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
1013 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
1015 (guchar *)startup_id, strlen (startup_id));
1020 broadcast_xmessage (GdkDisplay *display,
1021 const char *message_type,
1022 const char *message_type_begin,
1023 const char *message)
1025 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1026 GdkScreen *screen = gdk_display_get_default_screen (display);
1027 GdkWindow *root_window = gdk_screen_get_root_window (screen);
1028 Window xroot_window = GDK_WINDOW_XID (root_window);
1031 Atom type_atom_begin;
1034 if (!G_LIKELY (GDK_DISPLAY_X11 (display)->trusted_client))
1038 XSetWindowAttributes attrs;
1040 attrs.override_redirect = True;
1041 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1044 XCreateWindow (xdisplay,
1050 (Visual *)CopyFromParent,
1051 CWOverrideRedirect | CWEventMask,
1055 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
1057 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
1058 message_type_begin);
1061 XClientMessageEvent xclient;
1063 const char *src_end;
1067 memset(&xclient, 0, sizeof (xclient));
1068 xclient.type = ClientMessage;
1069 xclient.message_type = type_atom_begin;
1070 xclient.display =xdisplay;
1071 xclient.window = xwindow;
1075 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
1077 while (src != src_end)
1079 dest = &xclient.data.b[0];
1080 dest_end = dest + 20;
1082 while (dest != dest_end &&
1090 while (dest != dest_end)
1096 XSendEvent (xdisplay,
1100 (XEvent *)&xclient);
1102 xclient.message_type = type_atom;
1106 XDestroyWindow (xdisplay, xwindow);
1111 * gdk_x11_display_broadcast_startup_message:
1112 * @display: a #GdkDisplay
1113 * @message_type: startup notification message type ("new", "change",
1115 * @...: a list of key/value pairs (as strings), terminated by a
1116 * %NULL key. (A %NULL value for a key will cause that key to be
1117 * skipped in the output.)
1119 * Sends a startup notification message of type @message_type to
1122 * This is a convenience function for use by code that implements the
1123 * freedesktop startup notification specification. Applications should
1124 * not normally need to call it directly. See the <ulink
1125 * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
1126 * Notification Protocol specification</ulink> for
1127 * definitions of the message types and keys that can be used.
1132 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
1133 const char *message_type,
1138 const char *key, *value, *p;
1140 message = g_string_new (message_type);
1141 g_string_append_c (message, ':');
1143 va_start (ap, message_type);
1144 while ((key = va_arg (ap, const char *)))
1146 value = va_arg (ap, const char *);
1150 g_string_append_printf (message, " %s=\"", key);
1151 for (p = value; *p; p++)
1158 g_string_append_c (message, '\\');
1162 g_string_append_c (message, *p);
1164 g_string_append_c (message, '\"');
1168 broadcast_xmessage (display,
1169 "_NET_STARTUP_INFO",
1170 "_NET_STARTUP_INFO_BEGIN",
1173 g_string_free (message, TRUE);
1177 * gdk_notify_startup_complete:
1179 * Indicates to the GUI environment that the application has finished
1180 * loading. If the applications opens windows, this function is
1181 * normally called after opening the application's initial set of
1184 * GTK+ will call this function automatically after opening the first
1185 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
1186 * to disable that feature.
1191 gdk_notify_startup_complete (void)
1193 GdkDisplay *display;
1194 GdkDisplayX11 *display_x11;
1196 display = gdk_display_get_default ();
1200 display_x11 = GDK_DISPLAY_X11 (display);
1202 if (display_x11->startup_notification_id == NULL)
1205 gdk_notify_startup_complete_with_id (display_x11->startup_notification_id);
1209 * gdk_notify_startup_complete_with_id:
1210 * @startup_id: a startup-notification identifier, for which notification
1211 * process should be completed
1213 * Indicates to the GUI environment that the application has finished
1214 * loading, using a given identifier.
1216 * GTK+ will call this function automatically for #GtkWindow with custom
1217 * startup-notification identifier unless
1218 * gtk_window_set_auto_startup_notification() is called to disable
1224 gdk_notify_startup_complete_with_id (const gchar* startup_id)
1226 GdkDisplay *display;
1228 display = gdk_display_get_default ();
1232 gdk_x11_display_broadcast_startup_message (display, "remove",
1238 * gdk_display_supports_selection_notification:
1239 * @display: a #GdkDisplay
1241 * Returns whether #GdkEventOwnerChange events will be
1242 * sent when the owner of a selection changes.
1244 * Return value: whether #GdkEventOwnerChange events will
1250 gdk_display_supports_selection_notification (GdkDisplay *display)
1252 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1254 return display_x11->have_xfixes;
1258 * gdk_display_request_selection_notification:
1259 * @display: a #GdkDisplay
1260 * @selection: the #GdkAtom naming the selection for which
1261 * ownership change notification is requested
1263 * Request #GdkEventOwnerChange events for ownership changes
1264 * of the selection named by the given atom.
1266 * Return value: whether #GdkEventOwnerChange events will
1272 gdk_display_request_selection_notification (GdkDisplay *display,
1277 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1280 if (display_x11->have_xfixes)
1282 atom = gdk_x11_atom_to_xatom_for_display (display,
1284 XFixesSelectSelectionInput (display_x11->xdisplay,
1285 display_x11->leader_window,
1287 XFixesSetSelectionOwnerNotifyMask |
1288 XFixesSelectionWindowDestroyNotifyMask |
1289 XFixesSelectionClientCloseNotifyMask);
1298 * gdk_display_supports_clipboard_persistence
1299 * @display: a #GdkDisplay
1301 * Returns whether the speicifed display supports clipboard
1302 * persistance; i.e. if it's possible to store the clipboard data after an
1303 * application has quit. On X11 this checks if a clipboard daemon is
1306 * Returns: %TRUE if the display supports clipboard persistance.
1311 gdk_display_supports_clipboard_persistence (GdkDisplay *display)
1313 Atom clipboard_manager;
1315 /* It might make sense to cache this */
1316 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1317 return XGetSelectionOwner (GDK_DISPLAY_X11 (display)->xdisplay, clipboard_manager) != None;
1321 * gdk_display_store_clipboard
1322 * @display: a #GdkDisplay
1323 * @clipboard_window: a #GdkWindow belonging to the clipboard owner
1324 * @time_: a timestamp
1325 * @targets: an array of targets that should be saved, or %NULL
1326 * if all available targets should be saved.
1327 * @n_targets: length of the @targets array
1329 * Issues a request to the clipboard manager to store the
1330 * clipboard data. On X11, this is a special program that works
1331 * according to the freedesktop clipboard specification, available at
1332 * <ulink url="http://www.freedesktop.org/Standards/clipboard-manager-spec">
1333 * http://www.freedesktop.org/Standards/clipboard-manager-spec</ulink>.
1338 gdk_display_store_clipboard (GdkDisplay *display,
1339 GdkWindow *clipboard_window,
1341 const GdkAtom *targets,
1344 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1345 Atom clipboard_manager, save_targets;
1347 g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
1349 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1350 save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
1352 gdk_error_trap_push ();
1354 if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
1356 Atom property_name = None;
1362 property_name = gdk_x11_atom_to_xatom_for_display (display, _gdk_selection_property);
1364 xatoms = g_new (Atom, n_targets);
1365 for (i = 0; i < n_targets; i++)
1366 xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
1368 XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
1369 property_name, XA_ATOM,
1370 32, PropModeReplace, (guchar *)xatoms, n_targets);
1375 XConvertSelection (display_x11->xdisplay,
1376 clipboard_manager, save_targets, property_name,
1377 GDK_WINDOW_XID (clipboard_window), time_);
1380 gdk_error_trap_pop ();
1385 * gdk_x11_display_get_user_time:
1386 * @display: a #GdkDisplay
1388 * Returns the timestamp of the last user interaction on
1389 * @display. The timestamp is taken from events caused
1390 * by user interaction such as key presses or pointer
1391 * movements. See gdk_x11_window_set_user_time().
1393 * Returns: the timestamp of the last user interaction
1398 gdk_x11_display_get_user_time (GdkDisplay *display)
1400 return GDK_DISPLAY_X11 (display)->user_time;
1404 * gdk_display_supports_shapes:
1405 * @display: a #GdkDisplay
1407 * Returns %TRUE if gdk_window_shape_combine_mask() can
1408 * be used to create shaped windows on @display.
1410 * Returns: %TRUE if shaped windows are supported
1415 gdk_display_supports_shapes (GdkDisplay *display)
1417 return GDK_DISPLAY_X11 (display)->have_shapes;
1421 * gdk_display_supports_input_shapes:
1422 * @display: a #GdkDisplay
1424 * Returns %TRUE if gdk_window_input_shape_combine_mask() can
1425 * be used to modify the input shape of windows on @display.
1427 * Returns: %TRUE if windows with modified input shape are supported
1432 gdk_display_supports_input_shapes (GdkDisplay *display)
1434 return GDK_DISPLAY_X11 (display)->have_input_shapes;
1439 * gdk_x11_display_get_startup_notification_id:
1440 * @display: a #GdkDisplay
1442 * Gets the startup notification ID for a display.
1444 * Returns: the startup notification ID for @display
1448 G_CONST_RETURN gchar *
1449 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
1451 return GDK_DISPLAY_X11 (display)->startup_notification_id;
1455 * gdk_display_supports_composite:
1456 * @display: a #GdkDisplay
1458 * Returns %TRUE if gdk_window_set_composited() can be used
1459 * to redirect drawing on the window using compositing.
1461 * Currently this only works on X11 with XComposite and
1462 * XDamage extensions available.
1464 * Returns: %TRUE if windows may be composited.
1469 gdk_display_supports_composite (GdkDisplay *display)
1471 GdkDisplayX11 *x11_display = GDK_DISPLAY_X11 (display);
1473 return x11_display->have_xcomposite &&
1474 x11_display->have_xdamage &&
1475 x11_display->have_xfixes;
1479 #define __GDK_DISPLAY_X11_C__
1480 #include "gdkaliasdef.c"