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>
54 #include <X11/extensions/shape.h>
57 #ifdef HAVE_XCOMPOSITE
58 #include <X11/extensions/Xcomposite.h>
62 #include <X11/extensions/Xdamage.h>
66 #include <X11/extensions/Xrandr.h>
70 static void gdk_display_x11_dispose (GObject *object);
71 static void gdk_display_x11_finalize (GObject *object);
74 static void gdk_internal_connection_watch (Display *display,
78 XPointer *watch_data);
79 #endif /* HAVE_X11R6 */
81 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
82 * but including them here has the side-effect of getting them
83 * into the internal Xlib cache
85 static const char *const precache_atoms[] = {
96 "_NET_CURRENT_DESKTOP",
107 "_NET_WM_STATE_ABOVE",
108 "_NET_WM_STATE_BELOW",
109 "_NET_WM_STATE_FULLSCREEN",
110 "_NET_WM_STATE_MODAL",
111 "_NET_WM_STATE_MAXIMIZED_VERT",
112 "_NET_WM_STATE_MAXIMIZED_HORZ",
113 "_NET_WM_STATE_SKIP_TASKBAR",
114 "_NET_WM_STATE_SKIP_PAGER",
115 "_NET_WM_STATE_STICKY",
116 "_NET_WM_SYNC_REQUEST",
117 "_NET_WM_SYNC_REQUEST_COUNTER",
118 "_NET_WM_WINDOW_TYPE",
119 "_NET_WM_WINDOW_TYPE_NORMAL",
124 G_DEFINE_TYPE (GdkDisplayX11, _gdk_display_x11, GDK_TYPE_DISPLAY)
127 _gdk_display_x11_class_init (GdkDisplayX11Class * class)
129 GObjectClass *object_class = G_OBJECT_CLASS (class);
131 object_class->dispose = gdk_display_x11_dispose;
132 object_class->finalize = gdk_display_x11_finalize;
136 _gdk_display_x11_init (GdkDisplayX11 *display)
142 * @display_name: the name of the display to open
143 * @returns: a #GdkDisplay, or %NULL if the display
144 * could not be opened.
151 gdk_display_open (const gchar *display_name)
155 GdkDisplayX11 *display_x11;
159 const char *sm_client_id;
161 XClassHint *class_hint;
164 #if defined(HAVE_XFIXES) || defined(HAVE_SHAPE_EXT)
169 xdisplay = XOpenDisplay (display_name);
173 display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
174 display_x11 = GDK_DISPLAY_X11 (display);
176 display_x11->use_xshm = TRUE;
177 display_x11->xdisplay = xdisplay;
180 /* Set up handlers for Xlib internal connections */
181 XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
182 #endif /* HAVE_X11R6 */
184 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
186 /* RandR must be initialized before we initialize the screens */
187 display_x11->have_randr13 = FALSE;
189 if (XRRQueryExtension (display_x11->xdisplay,
190 &display_x11->xrandr_event_base, &ignore))
194 XRRQueryVersion (display_x11->xdisplay, &major, &minor);
196 if ((major == 1 && minor >= 3) || major > 1)
197 display_x11->have_randr13 = TRUE;
199 gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
203 /* initialize the display's screens */
204 display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
205 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
206 display_x11->screens[i] = _gdk_x11_screen_new (display, i);
208 /* We need to initialize events after we have the screen
209 * structures in places
211 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
212 _gdk_x11_events_init_screen (display_x11->screens[i]);
214 /*set the default screen */
215 display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
217 attr.window_type = GDK_WINDOW_TOPLEVEL;
218 attr.wclass = GDK_INPUT_OUTPUT;
225 display_x11->leader_gdk_window = gdk_window_new (GDK_SCREEN_X11 (display_x11->default_screen)->root_window,
226 &attr, GDK_WA_X | GDK_WA_Y);
227 (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
229 display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
231 display_x11->leader_window_title_set = FALSE;
233 display_x11->have_render = GDK_UNKNOWN;
236 if (XFixesQueryExtension (display_x11->xdisplay,
237 &display_x11->xfixes_event_base,
240 display_x11->have_xfixes = TRUE;
242 gdk_x11_register_standard_event_type (display,
243 display_x11->xfixes_event_base,
248 display_x11->have_xfixes = FALSE;
250 #ifdef HAVE_XCOMPOSITE
251 if (XCompositeQueryExtension (display_x11->xdisplay,
256 XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
258 /* Prior to Composite version 0.4, composited windows clipped their
259 * parents, so you had to use IncludeInferiors to draw to the parent
260 * This isn't useful for our purposes, so require 0.4
262 display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
266 display_x11->have_xcomposite = FALSE;
269 if (XDamageQueryExtension (display_x11->xdisplay,
270 &display_x11->xdamage_event_base,
273 display_x11->have_xdamage = TRUE;
275 gdk_x11_register_standard_event_type (display,
276 display_x11->xdamage_event_base,
277 XDamageNumberEvents);
281 display_x11->have_xdamage = FALSE;
283 display_x11->have_shapes = FALSE;
284 display_x11->have_input_shapes = FALSE;
285 #ifdef HAVE_SHAPE_EXT
286 if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &ignore, &ignore))
288 display_x11->have_shapes = TRUE;
290 if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
291 display_x11->have_input_shapes = (maj == 1 && min >= 1);
296 display_x11->trusted_client = TRUE;
299 int rootx, rooty, winx, winy;
302 gdk_error_trap_push ();
303 XQueryPointer (display_x11->xdisplay,
304 GDK_SCREEN_X11 (display_x11->default_screen)->xroot_window,
305 &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
307 if (G_UNLIKELY (gdk_error_trap_pop () == BadWindow))
309 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));
310 display_x11->trusted_client = FALSE;
314 if (_gdk_synchronize)
315 XSynchronize (display_x11->xdisplay, True);
317 class_hint = XAllocClassHint();
318 class_hint->res_name = g_get_prgname ();
320 class_hint->res_class = (char *)gdk_get_program_class ();
322 /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
323 * from argv[0], so we just synthesize an argument array here.
326 argv[0] = g_get_prgname ();
328 XmbSetWMProperties (display_x11->xdisplay,
329 display_x11->leader_window,
330 NULL, NULL, argv, argc, NULL, NULL,
334 sm_client_id = _gdk_get_sm_client_id ();
336 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
339 XChangeProperty (display_x11->xdisplay,
340 display_x11->leader_window,
341 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
342 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
344 /* We don't yet know a valid time. */
345 display_x11->user_time = 0;
349 gint xkb_major = XkbMajorVersion;
350 gint xkb_minor = XkbMinorVersion;
351 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
353 xkb_major = XkbMajorVersion;
354 xkb_minor = XkbMinorVersion;
356 if (XkbQueryExtension (display_x11->xdisplay,
357 NULL, &display_x11->xkb_event_type, NULL,
358 &xkb_major, &xkb_minor))
360 Bool detectable_autorepeat_supported;
362 display_x11->use_xkb = TRUE;
364 XkbSelectEvents (display_x11->xdisplay,
366 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
367 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
369 /* keep this in sync with _gdk_keymap_state_changed() */
370 XkbSelectEventDetails (display_x11->xdisplay,
371 XkbUseCoreKbd, XkbStateNotify,
372 XkbAllStateComponentsMask,
373 XkbGroupLockMask|XkbModifierLockMask);
375 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
377 &detectable_autorepeat_supported);
379 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
380 detectable_autorepeat_supported ?
381 "supported" : "not supported"));
383 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
389 display_x11->use_sync = FALSE;
393 int error_base, event_base;
395 if (XSyncQueryExtension (display_x11->xdisplay,
396 &event_base, &error_base) &&
397 XSyncInitialize (display_x11->xdisplay,
399 display_x11->use_sync = TRUE;
403 _gdk_windowing_image_init (display);
404 _gdk_events_init (display);
405 _gdk_input_init (display);
406 _gdk_dnd_init (display);
408 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
409 gdk_display_request_selection_notification (display,
410 GDK_SCREEN_X11 (display_x11->screens[i])->cm_selection_atom);
412 g_signal_emit_by_name (gdk_display_manager_get(),
413 "display_opened", display);
420 * XLib internal connection handling
422 typedef struct _GdkInternalConnection GdkInternalConnection;
424 struct _GdkInternalConnection
432 process_internal_connection (GIOChannel *gioc,
436 GdkInternalConnection *connection = (GdkInternalConnection *)data;
438 GDK_THREADS_ENTER ();
440 XProcessInternalConnection ((Display*)connection->display, connection->fd);
442 GDK_THREADS_LEAVE ();
447 static GdkInternalConnection *
448 gdk_add_connection_handler (Display *display,
451 GIOChannel *io_channel;
452 GdkInternalConnection *connection;
454 connection = g_new (GdkInternalConnection, 1);
457 connection->display = display;
459 io_channel = g_io_channel_unix_new (fd);
461 connection->source = g_io_create_watch (io_channel, G_IO_IN);
462 g_source_set_callback (connection->source,
463 (GSourceFunc)process_internal_connection, connection, NULL);
464 g_source_attach (connection->source, NULL);
466 g_io_channel_unref (io_channel);
472 gdk_remove_connection_handler (GdkInternalConnection *connection)
474 g_source_destroy (connection->source);
479 gdk_internal_connection_watch (Display *display,
483 XPointer *watch_data)
486 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
488 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
490 #endif /* HAVE_X11R6 */
493 * gdk_display_get_name:
494 * @display: a #GdkDisplay
496 * Gets the name of the display.
498 * Returns: a string representing the display name. This string is owned
499 * by GDK and should not be modified or freed.
503 G_CONST_RETURN gchar *
504 gdk_display_get_name (GdkDisplay *display)
506 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
508 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
512 * gdk_display_get_n_screens:
513 * @display: a #GdkDisplay
515 * Gets the number of screen managed by the @display.
517 * Returns: number of screens.
522 gdk_display_get_n_screens (GdkDisplay *display)
524 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
526 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
530 * gdk_display_get_screen:
531 * @display: a #GdkDisplay
532 * @screen_num: the screen number
534 * Returns a screen object for one of the screens of the display.
536 * Returns: the #GdkScreen object
541 gdk_display_get_screen (GdkDisplay *display,
544 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
545 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
547 return GDK_DISPLAY_X11 (display)->screens[screen_num];
551 * gdk_display_get_default_screen:
552 * @display: a #GdkDisplay
554 * Get the default #GdkScreen for @display.
556 * Returns: the default #GdkScreen object for @display
561 gdk_display_get_default_screen (GdkDisplay *display)
563 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
565 return GDK_DISPLAY_X11 (display)->default_screen;
569 _gdk_x11_display_is_root_window (GdkDisplay *display,
572 GdkDisplayX11 *display_x11;
575 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
577 display_x11 = GDK_DISPLAY_X11 (display);
579 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
581 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
587 #define XSERVER_TIME_IS_LATER(time1, time2) \
588 ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
589 (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
593 * gdk_display_pointer_ungrab:
594 * @display: a #GdkDisplay.
595 * @time_: a timestap (e.g. %GDK_CURRENT_TIME).
597 * Release any pointer grab.
602 gdk_display_pointer_ungrab (GdkDisplay *display,
606 GdkDisplayX11 *display_x11;
608 g_return_if_fail (GDK_IS_DISPLAY (display));
610 display_x11 = GDK_DISPLAY_X11 (display);
611 xdisplay = GDK_DISPLAY_XDISPLAY (display);
613 _gdk_input_ungrab_pointer (display, time_);
614 XUngrabPointer (xdisplay, time_);
617 if (time_ == GDK_CURRENT_TIME ||
618 display->pointer_grab.time == GDK_CURRENT_TIME ||
619 !XSERVER_TIME_IS_LATER (display->pointer_grab.time, time_))
621 _gdk_display_unset_has_pointer_grab (display,
629 * gdk_display_keyboard_ungrab:
630 * @display: a #GdkDisplay.
631 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
633 * Release any keyboard grab
638 gdk_display_keyboard_ungrab (GdkDisplay *display,
642 GdkDisplayX11 *display_x11;
644 g_return_if_fail (GDK_IS_DISPLAY (display));
646 display_x11 = GDK_DISPLAY_X11 (display);
647 xdisplay = GDK_DISPLAY_XDISPLAY (display);
649 XUngrabKeyboard (xdisplay, time);
652 if (time == GDK_CURRENT_TIME ||
653 display->keyboard_grab.time == GDK_CURRENT_TIME ||
654 !XSERVER_TIME_IS_LATER (display->keyboard_grab.time, time))
655 display->keyboard_grab.window = NULL;
660 * @display: a #GdkDisplay
662 * Emits a short beep on @display
667 gdk_display_beep (GdkDisplay *display)
669 g_return_if_fail (GDK_IS_DISPLAY (display));
671 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
676 * @display: a #GdkDisplay
678 * Flushes any requests queued for the windowing system and waits until all
679 * requests have been handled. This is often used for making sure that the
680 * display is synchronized with the current state of the program. Calling
681 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
682 * generated from earlier requests are handled before the error trap is
685 * This is most useful for X11. On windowing systems where requests are
686 * handled synchronously, this function will do nothing.
691 gdk_display_sync (GdkDisplay *display)
693 g_return_if_fail (GDK_IS_DISPLAY (display));
695 XSync (GDK_DISPLAY_XDISPLAY (display), False);
700 * @display: a #GdkDisplay
702 * Flushes any requests queued for the windowing system; this happens automatically
703 * when the main loop blocks waiting for new events, but if your application
704 * is drawing without returning control to the main loop, you may need
705 * to call this function explicitely. A common case where this function
706 * needs to be called is when an application is executing drawing commands
707 * from a thread other than the thread where the main loop is running.
709 * This is most useful for X11. On windowing systems where requests are
710 * handled synchronously, this function will do nothing.
715 gdk_display_flush (GdkDisplay *display)
717 g_return_if_fail (GDK_IS_DISPLAY (display));
719 if (!display->closed)
720 XFlush (GDK_DISPLAY_XDISPLAY (display));
724 * gdk_display_get_default_group:
725 * @display: a #GdkDisplay
727 * Returns the default group leader window for all toplevel windows
728 * on @display. This window is implicitly created by GDK.
729 * See gdk_window_set_group().
731 * Return value: The default group leader window for @display
736 gdk_display_get_default_group (GdkDisplay *display)
738 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
740 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
744 * gdk_x11_display_grab:
745 * @display: a #GdkDisplay
747 * Call XGrabServer() on @display.
748 * To ungrab the display again, use gdk_x11_display_ungrab().
750 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
755 gdk_x11_display_grab (GdkDisplay *display)
757 GdkDisplayX11 *display_x11;
759 g_return_if_fail (GDK_IS_DISPLAY (display));
761 display_x11 = GDK_DISPLAY_X11 (display);
763 if (display_x11->grab_count == 0)
764 XGrabServer (display_x11->xdisplay);
765 display_x11->grab_count++;
769 * gdk_x11_display_ungrab:
770 * @display: a #GdkDisplay
772 * Ungrab @display after it has been grabbed with
773 * gdk_x11_display_grab().
778 gdk_x11_display_ungrab (GdkDisplay *display)
780 GdkDisplayX11 *display_x11;
782 g_return_if_fail (GDK_IS_DISPLAY (display));
784 display_x11 = GDK_DISPLAY_X11 (display);;
785 g_return_if_fail (display_x11->grab_count > 0);
787 display_x11->grab_count--;
788 if (display_x11->grab_count == 0)
790 XUngrabServer (display_x11->xdisplay);
791 XFlush (display_x11->xdisplay);
796 gdk_display_x11_dispose (GObject *object)
798 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
801 g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
803 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
804 _gdk_screen_close (display_x11->screens[i]);
806 _gdk_events_uninit (GDK_DISPLAY_OBJECT (object));
808 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->dispose (object);
812 gdk_display_x11_finalize (GObject *object)
814 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
818 if (display_x11->keymap)
819 g_object_unref (display_x11->keymap);
822 if (display_x11->motif_target_lists)
824 for (i = 0; i < display_x11->motif_n_target_lists; i++)
825 g_list_free (display_x11->motif_target_lists[i]);
826 g_free (display_x11->motif_target_lists);
829 _gdk_x11_cursor_display_finalize (GDK_DISPLAY_OBJECT(display_x11));
832 g_hash_table_destroy (display_x11->atom_from_virtual);
833 g_hash_table_destroy (display_x11->atom_to_virtual);
836 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
838 /* list of filters for client messages */
839 g_list_foreach (display_x11->client_filters, (GFunc) g_free, NULL);
840 g_list_free (display_x11->client_filters);
842 /* List of event window extraction functions */
843 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
844 g_slist_free (display_x11->event_types);
846 /* input GdkDevice list */
847 g_list_foreach (display_x11->input_devices, (GFunc) g_object_unref, NULL);
848 g_list_free (display_x11->input_devices);
850 /* input GdkWindow list */
851 g_list_foreach (display_x11->input_windows, (GFunc) g_free, NULL);
852 g_list_free (display_x11->input_windows);
854 /* Free all GdkScreens */
855 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
856 g_object_unref (display_x11->screens[i]);
857 g_free (display_x11->screens);
859 g_free (display_x11->startup_notification_id);
862 g_hash_table_destroy (display_x11->xid_ht);
864 XCloseDisplay (display_x11->xdisplay);
866 G_OBJECT_CLASS (_gdk_display_x11_parent_class)->finalize (object);
870 * gdk_x11_lookup_xdisplay:
871 * @xdisplay: a pointer to an X Display
873 * Find the #GdkDisplay corresponding to @display, if any exists.
875 * Return value: the #GdkDisplay, if found, otherwise %NULL.
880 gdk_x11_lookup_xdisplay (Display *xdisplay)
884 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
886 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
887 return tmp_list->data;
894 * _gdk_x11_display_screen_for_xrootwin:
895 * @display: a #GdkDisplay
896 * @xrootwin: window ID for one of of the screen's of the display.
898 * Given the root window ID of one of the screen's of a #GdkDisplay,
901 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
904 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
909 for (i = 0; i < ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay); i++)
911 GdkScreen *screen = gdk_display_get_screen (display, i);
912 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
920 * gdk_x11_display_get_xdisplay:
921 * @display: a #GdkDisplay
922 * @returns: an X display.
924 * Returns the X display of a #GdkDisplay.
929 gdk_x11_display_get_xdisplay (GdkDisplay *display)
931 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
932 return GDK_DISPLAY_X11 (display)->xdisplay;
936 _gdk_windowing_set_default_display (GdkDisplay *display)
938 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
939 const gchar *startup_id;
947 gdk_display = GDK_DISPLAY_XDISPLAY (display);
949 g_free (display_x11->startup_notification_id);
950 display_x11->startup_notification_id = NULL;
952 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
953 if (startup_id && *startup_id != '\0')
957 if (!g_utf8_validate (startup_id, -1, NULL))
958 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
960 display_x11->startup_notification_id = g_strdup (startup_id);
962 /* Find the launch time from the startup_id, if it's there. Newer spec
963 * states that the startup_id is of the form <unique>_TIME<timestamp>
965 time_str = g_strrstr (startup_id, "_TIME");
966 if (time_str != NULL)
972 /* Skip past the "_TIME" part */
975 retval = strtoul (time_str, &end, 0);
976 if (end != time_str && errno == 0)
977 display_x11->user_time = retval;
980 /* Clear the environment variable so it won't be inherited by
981 * child processes and confuse things.
983 g_unsetenv ("DESKTOP_STARTUP_ID");
985 /* Set the startup id on the leader window so it
986 * applies to all windows we create on this display
988 XChangeProperty (display_x11->xdisplay,
989 display_x11->leader_window,
990 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
991 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
993 (guchar *)startup_id, strlen (startup_id));
998 broadcast_xmessage (GdkDisplay *display,
999 const char *message_type,
1000 const char *message_type_begin,
1001 const char *message)
1003 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1004 GdkScreen *screen = gdk_display_get_default_screen (display);
1005 GdkWindow *root_window = gdk_screen_get_root_window (screen);
1006 Window xroot_window = GDK_WINDOW_XID (root_window);
1009 Atom type_atom_begin;
1012 if (!G_LIKELY (GDK_DISPLAY_X11 (display)->trusted_client))
1016 XSetWindowAttributes attrs;
1018 attrs.override_redirect = True;
1019 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1022 XCreateWindow (xdisplay,
1028 (Visual *)CopyFromParent,
1029 CWOverrideRedirect | CWEventMask,
1033 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
1035 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
1036 message_type_begin);
1039 XClientMessageEvent xclient;
1041 const char *src_end;
1045 memset(&xclient, 0, sizeof (xclient));
1046 xclient.type = ClientMessage;
1047 xclient.message_type = type_atom_begin;
1048 xclient.display =xdisplay;
1049 xclient.window = xwindow;
1053 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
1055 while (src != src_end)
1057 dest = &xclient.data.b[0];
1058 dest_end = dest + 20;
1060 while (dest != dest_end &&
1068 while (dest != dest_end)
1074 XSendEvent (xdisplay,
1078 (XEvent *)&xclient);
1080 xclient.message_type = type_atom;
1084 XDestroyWindow (xdisplay, xwindow);
1089 * gdk_x11_display_broadcast_startup_message:
1090 * @display: a #GdkDisplay
1091 * @message_type: startup notification message type ("new", "change",
1093 * @...: a list of key/value pairs (as strings), terminated by a
1094 * %NULL key. (A %NULL value for a key will cause that key to be
1095 * skipped in the output.)
1097 * Sends a startup notification message of type @message_type to
1100 * This is a convenience function for use by code that implements the
1101 * freedesktop startup notification specification. Applications should
1102 * not normally need to call it directly. See the <ulink
1103 * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
1104 * Notification Protocol specification</ulink> for
1105 * definitions of the message types and keys that can be used.
1110 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
1111 const char *message_type,
1116 const char *key, *value, *p;
1118 message = g_string_new (message_type);
1119 g_string_append_c (message, ':');
1121 va_start (ap, message_type);
1122 while ((key = va_arg (ap, const char *)))
1124 value = va_arg (ap, const char *);
1128 g_string_append_printf (message, " %s=\"", key);
1129 for (p = value; *p; p++)
1136 g_string_append_c (message, '\\');
1140 g_string_append_c (message, *p);
1142 g_string_append_c (message, '\"');
1146 broadcast_xmessage (display,
1147 "_NET_STARTUP_INFO",
1148 "_NET_STARTUP_INFO_BEGIN",
1151 g_string_free (message, TRUE);
1155 * gdk_notify_startup_complete:
1157 * Indicates to the GUI environment that the application has finished
1158 * loading. If the applications opens windows, this function is
1159 * normally called after opening the application's initial set of
1162 * GTK+ will call this function automatically after opening the first
1163 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
1164 * to disable that feature.
1169 gdk_notify_startup_complete (void)
1171 GdkDisplay *display;
1172 GdkDisplayX11 *display_x11;
1174 display = gdk_display_get_default ();
1178 display_x11 = GDK_DISPLAY_X11 (display);
1180 if (display_x11->startup_notification_id == NULL)
1183 gdk_notify_startup_complete_with_id (display_x11->startup_notification_id);
1187 * gdk_notify_startup_complete_with_id:
1188 * @startup_id: a startup-notification identifier, for which notification
1189 * process should be completed
1191 * Indicates to the GUI environment that the application has finished
1192 * loading, using a given identifier.
1194 * GTK+ will call this function automatically for #GtkWindow with custom
1195 * startup-notification identifier unless
1196 * gtk_window_set_auto_startup_notification() is called to disable
1202 gdk_notify_startup_complete_with_id (const gchar* startup_id)
1204 GdkDisplay *display;
1206 display = gdk_display_get_default ();
1210 gdk_x11_display_broadcast_startup_message (display, "remove",
1216 * gdk_display_supports_selection_notification:
1217 * @display: a #GdkDisplay
1219 * Returns whether #GdkEventOwnerChange events will be
1220 * sent when the owner of a selection changes.
1222 * Return value: whether #GdkEventOwnerChange events will
1228 gdk_display_supports_selection_notification (GdkDisplay *display)
1230 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1232 return display_x11->have_xfixes;
1236 * gdk_display_request_selection_notification:
1237 * @display: a #GdkDisplay
1238 * @selection: the #GdkAtom naming the selection for which
1239 * ownership change notification is requested
1241 * Request #GdkEventOwnerChange events for ownership changes
1242 * of the selection named by the given atom.
1244 * Return value: whether #GdkEventOwnerChange events will
1250 gdk_display_request_selection_notification (GdkDisplay *display,
1255 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1258 if (display_x11->have_xfixes)
1260 atom = gdk_x11_atom_to_xatom_for_display (display,
1262 XFixesSelectSelectionInput (display_x11->xdisplay,
1263 display_x11->leader_window,
1265 XFixesSetSelectionOwnerNotifyMask |
1266 XFixesSelectionWindowDestroyNotifyMask |
1267 XFixesSelectionClientCloseNotifyMask);
1276 * gdk_display_supports_clipboard_persistence
1277 * @display: a #GdkDisplay
1279 * Returns whether the speicifed display supports clipboard
1280 * persistance; i.e. if it's possible to store the clipboard data after an
1281 * application has quit. On X11 this checks if a clipboard daemon is
1284 * Returns: %TRUE if the display supports clipboard persistance.
1289 gdk_display_supports_clipboard_persistence (GdkDisplay *display)
1291 Atom clipboard_manager;
1293 /* It might make sense to cache this */
1294 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1295 return XGetSelectionOwner (GDK_DISPLAY_X11 (display)->xdisplay, clipboard_manager) != None;
1299 * gdk_display_store_clipboard
1300 * @display: a #GdkDisplay
1301 * @clipboard_window: a #GdkWindow belonging to the clipboard owner
1302 * @time_: a timestamp
1303 * @targets: an array of targets that should be saved, or %NULL
1304 * if all available targets should be saved.
1305 * @n_targets: length of the @targets array
1307 * Issues a request to the clipboard manager to store the
1308 * clipboard data. On X11, this is a special program that works
1309 * according to the freedesktop clipboard specification, available at
1310 * <ulink url="http://www.freedesktop.org/Standards/clipboard-manager-spec">
1311 * http://www.freedesktop.org/Standards/clipboard-manager-spec</ulink>.
1316 gdk_display_store_clipboard (GdkDisplay *display,
1317 GdkWindow *clipboard_window,
1319 const GdkAtom *targets,
1322 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
1323 Atom clipboard_manager, save_targets;
1325 g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
1327 clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
1328 save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
1330 gdk_error_trap_push ();
1332 if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
1334 Atom property_name = None;
1340 property_name = gdk_x11_atom_to_xatom_for_display (display, _gdk_selection_property);
1342 xatoms = g_new (Atom, n_targets);
1343 for (i = 0; i < n_targets; i++)
1344 xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
1346 XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
1347 property_name, XA_ATOM,
1348 32, PropModeReplace, (guchar *)xatoms, n_targets);
1353 XConvertSelection (display_x11->xdisplay,
1354 clipboard_manager, save_targets, property_name,
1355 GDK_WINDOW_XID (clipboard_window), time_);
1358 gdk_error_trap_pop ();
1363 * gdk_x11_display_get_user_time:
1364 * @display: a #GdkDisplay
1366 * Returns the timestamp of the last user interaction on
1367 * @display. The timestamp is taken from events caused
1368 * by user interaction such as key presses or pointer
1369 * movements. See gdk_x11_window_set_user_time().
1371 * Returns: the timestamp of the last user interaction
1376 gdk_x11_display_get_user_time (GdkDisplay *display)
1378 return GDK_DISPLAY_X11 (display)->user_time;
1382 * gdk_display_supports_shapes:
1383 * @display: a #GdkDisplay
1385 * Returns %TRUE if gdk_window_shape_combine_mask() can
1386 * be used to create shaped windows on @display.
1388 * Returns: %TRUE if shaped windows are supported
1393 gdk_display_supports_shapes (GdkDisplay *display)
1395 return GDK_DISPLAY_X11 (display)->have_shapes;
1399 * gdk_display_supports_input_shapes:
1400 * @display: a #GdkDisplay
1402 * Returns %TRUE if gdk_window_input_shape_combine_mask() can
1403 * be used to modify the input shape of windows on @display.
1405 * Returns: %TRUE if windows with modified input shape are supported
1410 gdk_display_supports_input_shapes (GdkDisplay *display)
1412 return GDK_DISPLAY_X11 (display)->have_input_shapes;
1417 * gdk_x11_display_get_startup_notification_id:
1418 * @display: a #GdkDisplay
1420 * Gets the startup notification ID for a display.
1422 * Returns: the startup notification ID for @display
1426 G_CONST_RETURN gchar *
1427 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
1429 return GDK_DISPLAY_X11 (display)->startup_notification_id;
1433 * gdk_display_supports_composite:
1434 * @display: a #GdkDisplay
1436 * Returns %TRUE if gdk_window_set_composited() can be used
1437 * to redirect drawing on the window using compositing.
1439 * Currently this only works on X11 with XComposite and
1440 * XDamage extensions available.
1442 * Returns: %TRUE if windows may be composited.
1447 gdk_display_supports_composite (GdkDisplay *display)
1449 GdkDisplayX11 *x11_display = GDK_DISPLAY_X11 (display);
1451 return x11_display->have_xcomposite &&
1452 x11_display->have_xdamage &&
1453 x11_display->have_xfixes;
1457 #define __GDK_DISPLAY_X11_C__
1458 #include "gdkaliasdef.c"