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), &ignore, &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_display_request_selection_notification (display,
406 GDK_SCREEN_X11 (display_x11->screens[i])->cm_selection_atom);
408 g_signal_emit_by_name (gdk_display_manager_get(),
409 "display_opened", display);
416 * XLib internal connection handling
418 typedef struct _GdkInternalConnection GdkInternalConnection;
420 struct _GdkInternalConnection
428 process_internal_connection (GIOChannel *gioc,
432 GdkInternalConnection *connection = (GdkInternalConnection *)data;
434 GDK_THREADS_ENTER ();
436 XProcessInternalConnection ((Display*)connection->display, connection->fd);
438 GDK_THREADS_LEAVE ();
444 _gdk_windowing_window_get_next_serial (GdkDisplay *display)
446 return NextRequest (GDK_DISPLAY_XDISPLAY (display));
450 static GdkInternalConnection *
451 gdk_add_connection_handler (Display *display,
454 GIOChannel *io_channel;
455 GdkInternalConnection *connection;
457 connection = g_new (GdkInternalConnection, 1);
460 connection->display = display;
462 io_channel = g_io_channel_unix_new (fd);
464 connection->source = g_io_create_watch (io_channel, G_IO_IN);
465 g_source_set_callback (connection->source,
466 (GSourceFunc)process_internal_connection, connection, NULL);
467 g_source_attach (connection->source, NULL);
469 g_io_channel_unref (io_channel);
475 gdk_remove_connection_handler (GdkInternalConnection *connection)
477 g_source_destroy (connection->source);
482 gdk_internal_connection_watch (Display *display,
486 XPointer *watch_data)
489 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
491 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
493 #endif /* HAVE_X11R6 */
496 * gdk_display_get_name:
497 * @display: a #GdkDisplay
499 * Gets the name of the display.
501 * Returns: a string representing the display name. This string is owned
502 * by GDK and should not be modified or freed.
506 G_CONST_RETURN gchar *
507 gdk_display_get_name (GdkDisplay *display)
509 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
511 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
515 * gdk_display_get_n_screens:
516 * @display: a #GdkDisplay
518 * Gets the number of screen managed by the @display.
520 * Returns: number of screens.
525 gdk_display_get_n_screens (GdkDisplay *display)
527 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
529 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
533 * gdk_display_get_screen:
534 * @display: a #GdkDisplay
535 * @screen_num: the screen number
537 * Returns a screen object for one of the screens of the display.
539 * Returns: the #GdkScreen object
544 gdk_display_get_screen (GdkDisplay *display,
547 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
548 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
550 return GDK_DISPLAY_X11 (display)->screens[screen_num];
554 * gdk_display_get_default_screen:
555 * @display: a #GdkDisplay
557 * Get the default #GdkScreen for @display.
559 * Returns: the default #GdkScreen object for @display
564 gdk_display_get_default_screen (GdkDisplay *display)
566 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
568 return GDK_DISPLAY_X11 (display)->default_screen;
572 _gdk_x11_display_is_root_window (GdkDisplay *display,
575 GdkDisplayX11 *display_x11;
578 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
580 display_x11 = GDK_DISPLAY_X11 (display);
582 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
584 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
590 struct XPointerUngrabInfo {
596 pointer_ungrab_callback (GdkDisplay *display,
600 _gdk_display_pointer_grab_update (display, serial);
604 #define XSERVER_TIME_IS_LATER(time1, time2) \
605 ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
606 (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
610 * gdk_display_pointer_ungrab:
611 * @display: a #GdkDisplay.
612 * @time_: a timestap (e.g. %GDK_CURRENT_TIME).
614 * Release any pointer grab.
619 gdk_display_pointer_ungrab (GdkDisplay *display,
623 GdkDisplayX11 *display_x11;
624 GdkPointerGrabInfo *grab;
625 unsigned long serial;
627 g_return_if_fail (GDK_IS_DISPLAY (display));
629 display_x11 = GDK_DISPLAY_X11 (display);
630 xdisplay = GDK_DISPLAY_XDISPLAY (display);
632 serial = NextRequest (xdisplay);
634 _gdk_input_ungrab_pointer (display, time_);
635 XUngrabPointer (xdisplay, time_);
638 grab = _gdk_display_get_last_pointer_grab (display);
640 (time_ == GDK_CURRENT_TIME ||
641 grab->time == GDK_CURRENT_TIME ||
642 !XSERVER_TIME_IS_LATER (grab->time, time_)))
644 grab->serial_end = serial;
645 _gdk_x11_roundtrip_async (display,
646 pointer_ungrab_callback,
652 * gdk_display_keyboard_ungrab:
653 * @display: a #GdkDisplay.
654 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
656 * Release any keyboard grab
661 gdk_display_keyboard_ungrab (GdkDisplay *display,
665 GdkDisplayX11 *display_x11;
667 g_return_if_fail (GDK_IS_DISPLAY (display));
669 display_x11 = GDK_DISPLAY_X11 (display);
670 xdisplay = GDK_DISPLAY_XDISPLAY (display);
672 XUngrabKeyboard (xdisplay, time);
675 if (time == GDK_CURRENT_TIME ||
676 display->keyboard_grab.time == GDK_CURRENT_TIME ||
677 !XSERVER_TIME_IS_LATER (display->keyboard_grab.time, time))
678 _gdk_display_unset_has_keyboard_grab (display, FALSE);
683 * @display: a #GdkDisplay
685 * Emits a short beep on @display
690 gdk_display_beep (GdkDisplay *display)
692 g_return_if_fail (GDK_IS_DISPLAY (display));
694 XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
699 * @display: a #GdkDisplay
701 * Flushes any requests queued for the windowing system and waits until all
702 * requests have been handled. This is often used for making sure that the
703 * display is synchronized with the current state of the program. Calling
704 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
705 * generated from earlier requests are handled before the error trap is
708 * This is most useful for X11. On windowing systems where requests are
709 * handled synchronously, this function will do nothing.
714 gdk_display_sync (GdkDisplay *display)
716 g_return_if_fail (GDK_IS_DISPLAY (display));
718 XSync (GDK_DISPLAY_XDISPLAY (display), False);
723 * @display: a #GdkDisplay
725 * Flushes any requests queued for the windowing system; this happens automatically
726 * when the main loop blocks waiting for new events, but if your application
727 * is drawing without returning control to the main loop, you may need
728 * to call this function explicitely. A common case where this function
729 * needs to be called is when an application is executing drawing commands
730 * from a thread other than the thread where the main loop is running.
732 * This is most useful for X11. On windowing systems where requests are
733 * handled synchronously, this function will do nothing.
738 gdk_display_flush (GdkDisplay *display)
740 g_return_if_fail (GDK_IS_DISPLAY (display));
742 if (!display->closed)
743 XFlush (GDK_DISPLAY_XDISPLAY (display));
747 * gdk_display_get_default_group:
748 * @display: a #GdkDisplay
750 * Returns the default group leader window for all toplevel windows
751 * on @display. This window is implicitly created by GDK.
752 * See gdk_window_set_group().
754 * Return value: The default group leader window for @display
759 gdk_display_get_default_group (GdkDisplay *display)
761 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
763 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
767 * gdk_x11_display_grab:
768 * @display: a #GdkDisplay
770 * Call XGrabServer() on @display.
771 * To ungrab the display again, use gdk_x11_display_ungrab().
773 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
778 gdk_x11_display_grab (GdkDisplay *display)
780 GdkDisplayX11 *display_x11;
782 g_return_if_fail (GDK_IS_DISPLAY (display));
784 display_x11 = GDK_DISPLAY_X11 (display);
786 if (display_x11->grab_count == 0)
787 XGrabServer (display_x11->xdisplay);
788 display_x11->grab_count++;
792 * gdk_x11_display_ungrab:
793 * @display: a #GdkDisplay
795 * Ungrab @display after it has been grabbed with
796 * gdk_x11_display_grab().
801 gdk_x11_display_ungrab (GdkDisplay *display)
803 GdkDisplayX11 *display_x11;
805 g_return_if_fail (GDK_IS_DISPLAY (display));
807 display_x11 = GDK_DISPLAY_X11 (display);;
808 g_return_if_fail (display_x11->grab_count > 0);
810 display_x11->grab_count--;
811 if (display_x11->grab_count == 0)
813 XUngrabServer (display_x11->xdisplay);
814 XFlush (display_x11->xdisplay);
819 gdk_display_x11_dispose (GObject *object)
821 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
824 g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
826 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
827 _gdk_screen_close (display_x11->screens[i]);
829 _gdk_events_uninit (GDK_DISPLAY_OBJECT (object));
831 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->dispose (object);
835 gdk_display_x11_finalize (GObject *object)
837 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
841 if (display_x11->keymap)
842 g_object_unref (display_x11->keymap);
845 if (display_x11->motif_target_lists)
847 for (i = 0; i < display_x11->motif_n_target_lists; i++)
848 g_list_free (display_x11->motif_target_lists[i]);
849 g_free (display_x11->motif_target_lists);
852 _gdk_x11_cursor_display_finalize (GDK_DISPLAY_OBJECT(display_x11));
855 g_hash_table_destroy (display_x11->atom_from_virtual);
856 g_hash_table_destroy (display_x11->atom_to_virtual);
859 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
861 /* list of filters for client messages */
862 g_list_foreach (display_x11->client_filters, (GFunc) g_free, NULL);
863 g_list_free (display_x11->client_filters);
865 /* List of event window extraction functions */
866 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
867 g_slist_free (display_x11->event_types);
869 /* input GdkDevice list */
870 g_list_foreach (display_x11->input_devices, (GFunc) g_object_unref, NULL);
871 g_list_free (display_x11->input_devices);
873 /* input GdkWindow list */
874 g_list_foreach (display_x11->input_windows, (GFunc) g_free, NULL);
875 g_list_free (display_x11->input_windows);
877 /* Free all GdkScreens */
878 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
879 g_object_unref (display_x11->screens[i]);
880 g_free (display_x11->screens);
882 g_free (display_x11->startup_notification_id);
885 g_hash_table_destroy (display_x11->xid_ht);
887 XCloseDisplay (display_x11->xdisplay);
889 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->finalize (object);
893 * gdk_x11_lookup_xdisplay:
894 * @xdisplay: a pointer to an X Display
896 * Find the #GdkDisplay corresponding to @display, if any exists.
898 * Return value: the #GdkDisplay, if found, otherwise %NULL.
903 gdk_x11_lookup_xdisplay (Display *xdisplay)
907 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
909 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
910 return tmp_list->data;
917 * _gdk_x11_display_screen_for_xrootwin:
918 * @display: a #GdkDisplay
919 * @xrootwin: window ID for one of of the screen's of the display.
921 * Given the root window ID of one of the screen's of a #GdkDisplay,
924 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
927 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
932 for (i = 0; i < ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay); i++)
934 GdkScreen *screen = gdk_display_get_screen (display, i);
935 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
943 * gdk_x11_display_get_xdisplay:
944 * @display: a #GdkDisplay
945 * @returns: an X display.
947 * Returns the X display of a #GdkDisplay.
952 gdk_x11_display_get_xdisplay (GdkDisplay *display)
954 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
955 return GDK_DISPLAY_X11 (display)->xdisplay;
959 _gdk_windowing_set_default_display (GdkDisplay *display)
961 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
962 const gchar *startup_id;
970 gdk_display = GDK_DISPLAY_XDISPLAY (display);
972 g_free (display_x11->startup_notification_id);
973 display_x11->startup_notification_id = NULL;
975 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
976 if (startup_id && *startup_id != '\0')
980 if (!g_utf8_validate (startup_id, -1, NULL))
981 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
983 display_x11->startup_notification_id = g_strdup (startup_id);
985 /* Find the launch time from the startup_id, if it's there. Newer spec
986 * states that the startup_id is of the form <unique>_TIME<timestamp>
988 time_str = g_strrstr (startup_id, "_TIME");
989 if (time_str != NULL)
995 /* Skip past the "_TIME" part */
998 retval = strtoul (time_str, &end, 0);
999 if (end != time_str && errno == 0)
1000 display_x11->user_time = retval;
1003 /* Clear the environment variable so it won't be inherited by
1004 * child processes and confuse things.
1006 g_unsetenv ("DESKTOP_STARTUP_ID");
1008 /* Set the startup id on the leader window so it
1009 * applies to all windows we create on this display
1011 XChangeProperty (display_x11->xdisplay,
1012 display_x11->leader_window,
1013 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
1014 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
1016 (guchar *)startup_id, strlen (startup_id));
1021 broadcast_xmessage (GdkDisplay *display,
1022 const char *message_type,
1023 const char *message_type_begin,
1024 const char *message)
1026 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1027 GdkScreen *screen = gdk_display_get_default_screen (display);
1028 GdkWindow *root_window = gdk_screen_get_root_window (screen);
1029 Window xroot_window = GDK_WINDOW_XID (root_window);
1032 Atom type_atom_begin;
1035 if (!G_LIKELY (GDK_DISPLAY_X11 (display)->trusted_client))
1039 XSetWindowAttributes attrs;
1041 attrs.override_redirect = True;
1042 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1045 XCreateWindow (xdisplay,
1051 (Visual *)CopyFromParent,
1052 CWOverrideRedirect | CWEventMask,
1056 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
1058 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
1059 message_type_begin);
1062 XClientMessageEvent xclient;
1064 const char *src_end;
1068 memset(&xclient, 0, sizeof (xclient));
1069 xclient.type = ClientMessage;
1070 xclient.message_type = type_atom_begin;
1071 xclient.display =xdisplay;
1072 xclient.window = xwindow;
1076 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
1078 while (src != src_end)
1080 dest = &xclient.data.b[0];
1081 dest_end = dest + 20;
1083 while (dest != dest_end &&
1091 while (dest != dest_end)
1097 XSendEvent (xdisplay,
1101 (XEvent *)&xclient);
1103 xclient.message_type = type_atom;
1107 XDestroyWindow (xdisplay, xwindow);
1112 * gdk_x11_display_broadcast_startup_message:
1113 * @display: a #GdkDisplay
1114 * @message_type: startup notification message type ("new", "change",
1116 * @...: a list of key/value pairs (as strings), terminated by a
1117 * %NULL key. (A %NULL value for a key will cause that key to be
1118 * skipped in the output.)
1120 * Sends a startup notification message of type @message_type to
1123 * This is a convenience function for use by code that implements the
1124 * freedesktop startup notification specification. Applications should
1125 * not normally need to call it directly. See the <ulink
1126 * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
1127 * Notification Protocol specification</ulink> for
1128 * definitions of the message types and keys that can be used.
1133 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
1134 const char *message_type,
1139 const char *key, *value, *p;
1141 message = g_string_new (message_type);
1142 g_string_append_c (message, ':');
1144 va_start (ap, message_type);
1145 while ((key = va_arg (ap, const char *)))
1147 value = va_arg (ap, const char *);
1151 g_string_append_printf (message, " %s=\"", key);
1152 for (p = value; *p; p++)
1159 g_string_append_c (message, '\\');
1163 g_string_append_c (message, *p);
1165 g_string_append_c (message, '\"');
1169 broadcast_xmessage (display,
1170 "_NET_STARTUP_INFO",
1171 "_NET_STARTUP_INFO_BEGIN",
1174 g_string_free (message, TRUE);
1178 * gdk_notify_startup_complete:
1180 * Indicates to the GUI environment that the application has finished
1181 * loading. If the applications opens windows, this function is
1182 * normally called after opening the application's initial set of
1185 * GTK+ will call this function automatically after opening the first
1186 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
1187 * to disable that feature.
1192 gdk_notify_startup_complete (void)
1194 GdkDisplay *display;
1195 GdkDisplayX11 *display_x11;
1197 display = gdk_display_get_default ();
1201 display_x11 = GDK_DISPLAY_X11 (display);
1203 if (display_x11->startup_notification_id == NULL)
1206 gdk_notify_startup_complete_with_id (display_x11->startup_notification_id);
1210 * gdk_notify_startup_complete_with_id:
1211 * @startup_id: a startup-notification identifier, for which notification
1212 * process should be completed
1214 * Indicates to the GUI environment that the application has finished
1215 * loading, using a given identifier.
1217 * GTK+ will call this function automatically for #GtkWindow with custom
1218 * startup-notification identifier unless
1219 * gtk_window_set_auto_startup_notification() is called to disable
1225 gdk_notify_startup_complete_with_id (const gchar* startup_id)
1227 GdkDisplay *display;
1229 display = gdk_display_get_default ();
1233 gdk_x11_display_broadcast_startup_message (display, "remove",
1239 * gdk_display_supports_selection_notification:
1240 * @display: a #GdkDisplay
1242 * Returns whether #GdkEventOwnerChange events will be
1243 * sent when the owner of a selection changes.
1245 * Return value: whether #GdkEventOwnerChange events will
1251 gdk_display_supports_selection_notification (GdkDisplay *display)
1253 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1255 return display_x11->have_xfixes;
1259 * gdk_display_request_selection_notification:
1260 * @display: a #GdkDisplay
1261 * @selection: the #GdkAtom naming the selection for which
1262 * ownership change notification is requested
1264 * Request #GdkEventOwnerChange events for ownership changes
1265 * of the selection named by the given atom.
1267 * Return value: whether #GdkEventOwnerChange events will
1273 gdk_display_request_selection_notification (GdkDisplay *display,
1278 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1281 if (display_x11->have_xfixes)
1283 atom = gdk_x11_atom_to_xatom_for_display (display,
1285 XFixesSelectSelectionInput (display_x11->xdisplay,
1286 display_x11->leader_window,
1288 XFixesSetSelectionOwnerNotifyMask |
1289 XFixesSelectionWindowDestroyNotifyMask |
1290 XFixesSelectionClientCloseNotifyMask);
1299 * gdk_display_supports_clipboard_persistence
1300 * @display: a #GdkDisplay
1302 * Returns whether the speicifed display supports clipboard
1303 * persistance; i.e. if it's possible to store the clipboard data after an
1304 * application has quit. On X11 this checks if a clipboard daemon is
1307 * Returns: %TRUE if the display supports clipboard persistance.
1312 gdk_display_supports_clipboard_persistence (GdkDisplay *display)
1314 Atom clipboard_manager;
1316 /* It might make sense to cache this */
1317 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1318 return XGetSelectionOwner (GDK_DISPLAY_X11 (display)->xdisplay, clipboard_manager) != None;
1322 * gdk_display_store_clipboard
1323 * @display: a #GdkDisplay
1324 * @clipboard_window: a #GdkWindow belonging to the clipboard owner
1325 * @time_: a timestamp
1326 * @targets: an array of targets that should be saved, or %NULL
1327 * if all available targets should be saved.
1328 * @n_targets: length of the @targets array
1330 * Issues a request to the clipboard manager to store the
1331 * clipboard data. On X11, this is a special program that works
1332 * according to the freedesktop clipboard specification, available at
1333 * <ulink url="http://www.freedesktop.org/Standards/clipboard-manager-spec">
1334 * http://www.freedesktop.org/Standards/clipboard-manager-spec</ulink>.
1339 gdk_display_store_clipboard (GdkDisplay *display,
1340 GdkWindow *clipboard_window,
1342 const GdkAtom *targets,
1345 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1346 Atom clipboard_manager, save_targets;
1348 g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
1350 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1351 save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
1353 gdk_error_trap_push ();
1355 if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
1357 Atom property_name = None;
1363 property_name = gdk_x11_atom_to_xatom_for_display (display, _gdk_selection_property);
1365 xatoms = g_new (Atom, n_targets);
1366 for (i = 0; i < n_targets; i++)
1367 xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
1369 XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
1370 property_name, XA_ATOM,
1371 32, PropModeReplace, (guchar *)xatoms, n_targets);
1376 XConvertSelection (display_x11->xdisplay,
1377 clipboard_manager, save_targets, property_name,
1378 GDK_WINDOW_XID (clipboard_window), time_);
1381 gdk_error_trap_pop ();
1386 * gdk_x11_display_get_user_time:
1387 * @display: a #GdkDisplay
1389 * Returns the timestamp of the last user interaction on
1390 * @display. The timestamp is taken from events caused
1391 * by user interaction such as key presses or pointer
1392 * movements. See gdk_x11_window_set_user_time().
1394 * Returns: the timestamp of the last user interaction
1399 gdk_x11_display_get_user_time (GdkDisplay *display)
1401 return GDK_DISPLAY_X11 (display)->user_time;
1405 * gdk_display_supports_shapes:
1406 * @display: a #GdkDisplay
1408 * Returns %TRUE if gdk_window_shape_combine_mask() can
1409 * be used to create shaped windows on @display.
1411 * Returns: %TRUE if shaped windows are supported
1416 gdk_display_supports_shapes (GdkDisplay *display)
1418 return GDK_DISPLAY_X11 (display)->have_shapes;
1422 * gdk_display_supports_input_shapes:
1423 * @display: a #GdkDisplay
1425 * Returns %TRUE if gdk_window_input_shape_combine_mask() can
1426 * be used to modify the input shape of windows on @display.
1428 * Returns: %TRUE if windows with modified input shape are supported
1433 gdk_display_supports_input_shapes (GdkDisplay *display)
1435 return GDK_DISPLAY_X11 (display)->have_input_shapes;
1440 * gdk_x11_display_get_startup_notification_id:
1441 * @display: a #GdkDisplay
1443 * Gets the startup notification ID for a display.
1445 * Returns: the startup notification ID for @display
1449 G_CONST_RETURN gchar *
1450 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
1452 return GDK_DISPLAY_X11 (display)->startup_notification_id;
1456 * gdk_display_supports_composite:
1457 * @display: a #GdkDisplay
1459 * Returns %TRUE if gdk_window_set_composited() can be used
1460 * to redirect drawing on the window using compositing.
1462 * Currently this only works on X11 with XComposite and
1463 * XDamage extensions available.
1465 * Returns: %TRUE if windows may be composited.
1470 gdk_display_supports_composite (GdkDisplay *display)
1472 GdkDisplayX11 *x11_display = GDK_DISPLAY_X11 (display);
1474 return x11_display->have_xcomposite &&
1475 x11_display->have_xdamage &&
1476 x11_display->have_xfixes;
1480 #define __GDK_DISPLAY_X11_C__
1481 #include "gdkaliasdef.c"