1 /* GDK - The GIMP Drawing Kit
4 * Copyright 2001 Sun Microsystems Inc.
6 * Erwann Chenede <erwann.chenede@sun.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
32 #include "gdkdisplay.h"
33 #include "gdkdisplay-x11.h"
34 #include "gdkscreen.h"
35 #include "gdkscreen-x11.h"
36 #include "gdkinternals.h"
37 #include "gdkinputprivate.h"
38 #include "xsettings-client.h"
40 #include <X11/Xatom.h>
43 #include <X11/XKBlib.h>
46 static void gdk_display_x11_class_init (GdkDisplayX11Class *class);
47 static void gdk_display_x11_dispose (GObject *object);
48 static void gdk_display_x11_finalize (GObject *object);
51 static void gdk_internal_connection_watch (Display *display,
55 XPointer *watch_data);
56 #endif /* HAVE_X11R6 */
58 static gpointer parent_class = NULL;
60 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
61 * but including them here has the side-effect of getting them
62 * into the internal Xlib cache
64 static const char *const precache_atoms[] = {
78 "_NET_WM_STATE_STICKY",
79 "_NET_WM_STATE_MAXIMIZED_VERT",
80 "_NET_WM_STATE_MAXIMIZED_HORZ",
81 "_NET_WM_STATE_FULLSCREEN",
82 "_NET_WM_WINDOW_TYPE",
83 "_NET_WM_WINDOW_TYPE_NORMAL",
87 _gdk_display_x11_get_type (void)
89 static GType object_type = 0;
93 static const GTypeInfo object_info =
95 sizeof (GdkDisplayX11Class),
97 (GBaseFinalizeFunc) NULL,
98 (GClassInitFunc) gdk_display_x11_class_init,
99 NULL, /* class_finalize */
100 NULL, /* class_data */
101 sizeof (GdkDisplayX11),
103 (GInstanceInitFunc) NULL,
106 object_type = g_type_register_static (GDK_TYPE_DISPLAY,
115 gdk_display_x11_class_init (GdkDisplayX11Class * class)
117 GObjectClass *object_class = G_OBJECT_CLASS (class);
119 object_class->dispose = gdk_display_x11_dispose;
120 object_class->finalize = gdk_display_x11_finalize;
122 parent_class = g_type_class_peek_parent (class);
127 * @display_name: the name of the display to open
128 * @returns: a #GdkDisplay, or %NULL if the display
129 * could not be opened.
136 gdk_display_open (const gchar *display_name)
140 GdkDisplayX11 *display_x11;
144 const char *sm_client_id;
146 XClassHint *class_hint;
150 xdisplay = XOpenDisplay (display_name);
154 display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
155 display_x11 = GDK_DISPLAY_X11 (display);
157 display_x11->use_xshm = TRUE;
158 display_x11->xdisplay = xdisplay;
161 /* Set up handlers for Xlib internal connections */
162 XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
163 #endif /* HAVE_X11R6 */
165 /* initialize the display's screens */
166 display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
167 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
168 display_x11->screens[i] = _gdk_x11_screen_new (display, i);
170 /* We need to initialize events after we have the screen
171 * structures in places
173 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
174 _gdk_x11_events_init_screen (display_x11->screens[i]);
176 /*set the default screen */
177 display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
179 attr.window_type = GDK_WINDOW_TOPLEVEL;
180 attr.wclass = GDK_INPUT_OUTPUT;
187 display_x11->leader_gdk_window = gdk_window_new (GDK_SCREEN_X11 (display_x11->default_screen)->root_window,
188 &attr, GDK_WA_X | GDK_WA_Y);
189 display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
191 display_x11->leader_window_title_set = FALSE;
193 display_x11->gravity_works = GDK_UNKNOWN;
194 display_x11->have_render = GDK_UNKNOWN;
196 if (_gdk_synchronize)
197 XSynchronize (display_x11->xdisplay, True);
199 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
201 class_hint = XAllocClassHint();
202 class_hint->res_name = g_get_prgname ();
204 class_hint->res_class = (char *)gdk_get_program_class ();
205 _gdk_get_command_line_args (&argc, &argv);
206 XmbSetWMProperties (display_x11->xdisplay,
207 display_x11->leader_window,
208 NULL, NULL, argv, argc, NULL, NULL,
212 sm_client_id = _gdk_get_sm_client_id ();
214 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
217 XChangeProperty (display_x11->xdisplay,
218 display_x11->leader_window,
219 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
220 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
224 gint xkb_major = XkbMajorVersion;
225 gint xkb_minor = XkbMinorVersion;
226 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
228 xkb_major = XkbMajorVersion;
229 xkb_minor = XkbMinorVersion;
231 if (XkbQueryExtension (display_x11->xdisplay,
232 NULL, &display_x11->xkb_event_type, NULL,
233 &xkb_major, &xkb_minor))
235 Bool detectable_autorepeat_supported;
237 display_x11->use_xkb = TRUE;
239 XkbSelectEvents (display_x11->xdisplay,
241 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
242 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
244 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
246 &detectable_autorepeat_supported);
248 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
249 detectable_autorepeat_supported ?
250 "supported" : "not supported"));
252 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
258 _gdk_windowing_image_init (display);
259 _gdk_events_init (display);
260 _gdk_input_init (display);
261 _gdk_dnd_init (display);
263 g_signal_emit_by_name (gdk_display_manager_get(),
264 "display_opened", display);
271 * XLib internal connection handling
273 typedef struct _GdkInternalConnection GdkInternalConnection;
275 struct _GdkInternalConnection
283 process_internal_connection (GIOChannel *gioc,
287 GdkInternalConnection *connection = (GdkInternalConnection *)data;
289 GDK_THREADS_ENTER ();
291 XProcessInternalConnection ((Display*)connection->display, connection->fd);
293 GDK_THREADS_LEAVE ();
298 static GdkInternalConnection *
299 gdk_add_connection_handler (Display *display,
302 GIOChannel *io_channel;
303 GdkInternalConnection *connection;
305 connection = g_new (GdkInternalConnection, 1);
308 connection->display = display;
310 io_channel = g_io_channel_unix_new (fd);
312 connection->source = g_io_create_watch (io_channel, G_IO_IN);
313 g_source_set_callback (connection->source,
314 (GSourceFunc)process_internal_connection, connection, NULL);
315 g_source_attach (connection->source, NULL);
317 g_io_channel_unref (io_channel);
323 gdk_remove_connection_handler (GdkInternalConnection *connection)
325 g_source_destroy (connection->source);
330 gdk_internal_connection_watch (Display *display,
334 XPointer *watch_data)
337 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
339 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
341 #endif /* HAVE_X11R6 */
344 * gdk_display_get_name:
345 * @display: a #GdkDisplay
347 * Gets the name of the display.
349 * Returns: a string representing the display name. This string is owned
350 * by GDK and should not be modified or freed.
354 G_CONST_RETURN gchar *
355 gdk_display_get_name (GdkDisplay * display)
357 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
359 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
363 * gdk_display_get_n_screens:
364 * @display: a #GdkDisplay
366 * Gets the number of screen managed by the @display.
368 * Returns: number of screens.
373 gdk_display_get_n_screens (GdkDisplay * display)
375 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
377 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
381 * gdk_display_get_screen:
382 * @display: a #GdkDisplay
383 * @screen_num: the screen number
385 * Returns a screen object for one of the screens of the display.
387 * Returns: the #GdkScreen object
392 gdk_display_get_screen (GdkDisplay * display, gint screen_num)
394 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
395 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
397 return GDK_DISPLAY_X11 (display)->screens[screen_num];
401 * gdk_display_get_default_screen:
402 * @display: a #GdkDisplay
404 * Get the default #GdkScreen for @display.
406 * Returns: the default #GdkScreen object for @display
411 gdk_display_get_default_screen (GdkDisplay * display)
413 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
415 return GDK_DISPLAY_X11 (display)->default_screen;
419 _gdk_x11_display_is_root_window (GdkDisplay *display,
422 GdkDisplayX11 *display_x11;
425 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
427 display_x11 = GDK_DISPLAY_X11 (display);
429 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
431 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
438 * gdk_display_pointer_ungrab:
439 * @display: a #GdkDisplay.
440 * @time_: a timestap (e.g. GDK_CURRENT_TIME).
442 * Release any pointer grab.
447 gdk_display_pointer_ungrab (GdkDisplay *display,
452 g_return_if_fail (GDK_IS_DISPLAY (display));
454 xdisplay = GDK_DISPLAY_XDISPLAY (display);
456 _gdk_input_ungrab_pointer (display, time);
457 XUngrabPointer (xdisplay, time);
460 GDK_DISPLAY_X11 (display)->pointer_xgrab_window = NULL;
464 * gdk_display_pointer_is_grabbed:
465 * @display: a #GdkDisplay
467 * Test if the pointer is grabbed.
469 * Returns: %TRUE if an active X pointer grab is in effect
474 gdk_display_pointer_is_grabbed (GdkDisplay * display)
476 g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
478 return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL);
482 * gdk_display_keyboard_ungrab:
483 * @display: a #GdkDisplay.
484 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
486 * Release any keyboard grab
491 gdk_display_keyboard_ungrab (GdkDisplay *display,
496 g_return_if_fail (GDK_IS_DISPLAY (display));
498 xdisplay = GDK_DISPLAY_XDISPLAY (display);
500 XUngrabKeyboard (xdisplay, time);
503 GDK_DISPLAY_X11 (display)->keyboard_xgrab_window = NULL;
508 * @display: a #GdkDisplay
510 * Emits a short beep on @display
515 gdk_display_beep (GdkDisplay * display)
517 g_return_if_fail (GDK_IS_DISPLAY (display));
519 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
524 * @display: a #GdkDisplay
526 * Flushes any requests queued for the windowing system and waits until all
527 * requests have been handled. This is often used for making sure that the
528 * display is synchronized with the current state of the program. Calling
529 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
530 * generated from earlier requests are handled before the error trap is
533 * This is most useful for X11. On windowing systems where requests are
534 * handled synchronously, this function will do nothing.
539 gdk_display_sync (GdkDisplay * display)
541 g_return_if_fail (GDK_IS_DISPLAY (display));
543 XSync (GDK_DISPLAY_XDISPLAY (display), False);
548 * @display: a #GdkDisplay
550 * Flushes any requests queued for the windowing system; this happens automatically
551 * when the main loop blocks waiting for new events, but if your application
552 * is drawing without returning control to the main loop, you may need
553 * to call this function explicitely. A common case where this function
554 * needs to be called is when an application is executing drawing commands
555 * from a thread other than the thread where the main loop is running.
557 * This is most useful for X11. On windowing systems where requests are
558 * handled synchronously, this function will do nothing.
563 gdk_display_flush (GdkDisplay *display)
565 g_return_if_fail (GDK_IS_DISPLAY (display));
567 if (!display->closed)
568 XFlush (GDK_DISPLAY_XDISPLAY (display));
572 * gdk_display_get_default_group:
573 * @display: a #GdkDisplay
575 * Returns the default group leader window for all toplevel windows
576 * on @display. This window is implicitly created by GDK.
577 * See gdk_window_set_group().
579 * Return value: The default group leader window for @display
583 GdkWindow *gdk_display_get_default_group (GdkDisplay *display)
585 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
587 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
591 * gdk_x11_display_grab:
592 * @display: a #GdkDisplay
594 * Call XGrabServer() on @display.
595 * To ungrab the display again, use gdk_x11_display_ungrab().
597 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
602 gdk_x11_display_grab (GdkDisplay * display)
604 GdkDisplayX11 *display_x11;
606 g_return_if_fail (GDK_IS_DISPLAY (display));
608 display_x11 = GDK_DISPLAY_X11 (display);
610 if (display_x11->grab_count == 0)
611 XGrabServer (display_x11->xdisplay);
612 display_x11->grab_count++;
616 * gdk_x11_display_ungrab:
617 * @display: a #GdkDisplay
619 * Ungrab @display after it has been grabbed with
620 * gdk_x11_display_grab().
625 gdk_x11_display_ungrab (GdkDisplay * display)
627 GdkDisplayX11 *display_x11;
629 g_return_if_fail (GDK_IS_DISPLAY (display));
631 display_x11 = GDK_DISPLAY_X11 (display);;
632 g_return_if_fail (display_x11->grab_count > 0);
634 display_x11->grab_count--;
635 if (display_x11->grab_count == 0)
637 XUngrabServer (display_x11->xdisplay);
638 XFlush (display_x11->xdisplay);
643 gdk_display_x11_dispose (GObject *object)
645 GdkDisplayX11 *display_x11;
648 display_x11 = GDK_DISPLAY_X11 (object);
650 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
651 _gdk_screen_close (display_x11->screens[i]);
653 g_source_destroy (display_x11->event_source);
655 XCloseDisplay (display_x11->xdisplay);
656 display_x11->xdisplay = NULL;
658 G_OBJECT_CLASS (parent_class)->dispose (object);
662 gdk_display_x11_finalize (GObject *object)
664 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
667 /* FIXME need to write GdkKeymap finalize fct
668 g_object_unref (display_x11->keymap);
671 if (display_x11->motif_target_lists)
673 for (i = 0; i < display_x11->motif_n_target_lists; i++)
674 g_list_free (display_x11->motif_target_lists[i]);
675 g_free (display_x11->motif_target_lists);
679 g_hash_table_destroy (display_x11->atom_from_virtual);
680 g_hash_table_destroy (display_x11->atom_to_virtual);
682 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
683 /* list of filters for client messages */
684 g_list_free (display_x11->client_filters);
685 /* List of event window extraction functions */
686 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
687 g_slist_free (display_x11->event_types);
689 g_hash_table_destroy (display_x11->xid_ht);
690 /* input GdkDevice list */
691 /* FIXME need to write finalize fct */
692 for (tmp = display_x11->input_devices; tmp; tmp = tmp->next)
693 g_object_unref (tmp->data);
694 g_list_free (display_x11->input_devices);
695 /* input GdkWindow list */
696 for (tmp = display_x11->input_windows; tmp; tmp = tmp->next)
697 g_object_unref (tmp->data);
698 g_list_free (display_x11->input_windows);
699 /* Free all GdkScreens */
700 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
701 g_object_unref (display_x11->screens[i]);
702 g_free (display_x11->screens);
703 g_free (display_x11->startup_notification_id);
705 G_OBJECT_CLASS (parent_class)->finalize (object);
709 * gdk_x11_lookup_xdisplay:
710 * @xdisplay: a pointer to an X Display
712 * Find the #GdkDisplay corresponding to @display, if any exists.
714 * Return value: the #GdkDisplay, if found, otherwise %NULL.
719 gdk_x11_lookup_xdisplay (Display *xdisplay)
723 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
725 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
726 return tmp_list->data;
733 * _gdk_x11_display_screen_for_xrootwin:
734 * @display: a #Display
735 * @xrootwin: window ID for one of of the screen's of the display.
737 * Given the root window ID of one of the screen's of a #GdkDisplay,
740 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
743 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
748 n_screens = gdk_display_get_n_screens (display);
749 for (i = 0; i < n_screens; i++)
751 GdkScreen *screen = gdk_display_get_screen (display, i);
752 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
760 * gdk_x11_display_get_xdisplay:
761 * @display: a #GdkDisplay
762 * @returns: an X display.
764 * Returns the X display of a #GdkDisplay.
769 gdk_x11_display_get_xdisplay (GdkDisplay *display)
771 return GDK_DISPLAY_X11 (display)->xdisplay;
775 _gdk_windowing_set_default_display (GdkDisplay *display)
777 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
778 const gchar *startup_id;
781 gdk_display = GDK_DISPLAY_XDISPLAY (display);
785 g_free (display_x11->startup_notification_id);
786 display_x11->startup_notification_id = NULL;
788 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
789 if (startup_id && *startup_id != '\0')
791 if (!g_utf8_validate (startup_id, -1, NULL))
792 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
794 display_x11->startup_notification_id = g_strdup (startup_id);
796 /* Clear the environment variable so it won't be inherited by
797 * child processes and confuse things.
799 g_unsetenv ("DESKTOP_STARTUP_ID");
801 /* Set the startup id on the leader window so it
802 * applies to all windows we create on this display
804 XChangeProperty (display_x11->xdisplay,
805 display_x11->leader_window,
806 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
807 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
809 startup_id, strlen (startup_id));
814 escape_for_xmessage (const char *str)
819 retval = g_string_new (NULL);
829 g_string_append_c (retval, '\\');
833 g_string_append_c (retval, *p);
837 return g_string_free (retval, FALSE);
841 broadcast_xmessage (GdkDisplay *display,
842 const char *message_type,
843 const char *message_type_begin,
846 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
847 GdkScreen *screen = gdk_display_get_default_screen (display);
848 GdkWindow *root_window = gdk_screen_get_root_window (screen);
849 Window xroot_window = GDK_WINDOW_XID (root_window);
852 Atom type_atom_begin;
856 XSetWindowAttributes attrs;
858 attrs.override_redirect = True;
859 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
862 XCreateWindow (xdisplay,
869 CWOverrideRedirect | CWEventMask,
873 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
875 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
885 xevent.xclient.type = ClientMessage;
886 xevent.xclient.message_type = type_atom_begin;
887 xevent.xclient.display =xdisplay;
888 xevent.xclient.window = xwindow;
889 xevent.xclient.format = 8;
892 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
894 while (src != src_end)
896 dest = &xevent.xclient.data.b[0];
897 dest_end = dest + 20;
899 while (dest != dest_end &&
907 while (dest != dest_end)
913 XSendEvent (xdisplay,
919 xevent.xclient.message_type = type_atom;
923 XDestroyWindow (xdisplay, xwindow);
928 * gdk_notify_startup_complete:
930 * Indicates to the GUI environment that the application has finished
931 * loading. If the applications opens windows, this function is
932 * normally called after opening the application's initial set of
935 * GTK+ will call this function automatically after opening the first
936 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
937 * to disable that feature.
942 gdk_notify_startup_complete (void)
945 GdkDisplayX11 *display_x11;
949 display = gdk_display_get_default ();
953 display_x11 = GDK_DISPLAY_X11 (display);
955 if (display_x11->startup_notification_id == NULL)
958 escaped_id = escape_for_xmessage (display_x11->startup_notification_id);
959 message = g_strdup_printf ("remove: ID=%s", escaped_id);
962 broadcast_xmessage (display,
964 "_NET_STARTUP_INFO_BEGIN",