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->have_render = GDK_UNKNOWN;
195 if (_gdk_synchronize)
196 XSynchronize (display_x11->xdisplay, True);
198 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
200 class_hint = XAllocClassHint();
201 class_hint->res_name = g_get_prgname ();
203 class_hint->res_class = (char *)gdk_get_program_class ();
204 _gdk_get_command_line_args (&argc, &argv);
205 XmbSetWMProperties (display_x11->xdisplay,
206 display_x11->leader_window,
207 NULL, NULL, argv, argc, NULL, NULL,
211 sm_client_id = _gdk_get_sm_client_id ();
213 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
216 XChangeProperty (display_x11->xdisplay,
217 display_x11->leader_window,
218 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
219 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
223 gint xkb_major = XkbMajorVersion;
224 gint xkb_minor = XkbMinorVersion;
225 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
227 xkb_major = XkbMajorVersion;
228 xkb_minor = XkbMinorVersion;
230 if (XkbQueryExtension (display_x11->xdisplay,
231 NULL, &display_x11->xkb_event_type, NULL,
232 &xkb_major, &xkb_minor))
234 Bool detectable_autorepeat_supported;
236 display_x11->use_xkb = TRUE;
238 XkbSelectEvents (display_x11->xdisplay,
240 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
241 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
243 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
245 &detectable_autorepeat_supported);
247 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
248 detectable_autorepeat_supported ?
249 "supported" : "not supported"));
251 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
257 _gdk_windowing_image_init (display);
258 _gdk_events_init (display);
259 _gdk_input_init (display);
260 _gdk_dnd_init (display);
262 g_signal_emit_by_name (gdk_display_manager_get(),
263 "display_opened", display);
270 * XLib internal connection handling
272 typedef struct _GdkInternalConnection GdkInternalConnection;
274 struct _GdkInternalConnection
282 process_internal_connection (GIOChannel *gioc,
286 GdkInternalConnection *connection = (GdkInternalConnection *)data;
288 GDK_THREADS_ENTER ();
290 XProcessInternalConnection ((Display*)connection->display, connection->fd);
292 GDK_THREADS_LEAVE ();
297 static GdkInternalConnection *
298 gdk_add_connection_handler (Display *display,
301 GIOChannel *io_channel;
302 GdkInternalConnection *connection;
304 connection = g_new (GdkInternalConnection, 1);
307 connection->display = display;
309 io_channel = g_io_channel_unix_new (fd);
311 connection->source = g_io_create_watch (io_channel, G_IO_IN);
312 g_source_set_callback (connection->source,
313 (GSourceFunc)process_internal_connection, connection, NULL);
314 g_source_attach (connection->source, NULL);
316 g_io_channel_unref (io_channel);
322 gdk_remove_connection_handler (GdkInternalConnection *connection)
324 g_source_destroy (connection->source);
329 gdk_internal_connection_watch (Display *display,
333 XPointer *watch_data)
336 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
338 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
340 #endif /* HAVE_X11R6 */
343 * gdk_display_get_name:
344 * @display: a #GdkDisplay
346 * Gets the name of the display.
348 * Returns: a string representing the display name. This string is owned
349 * by GDK and should not be modified or freed.
353 G_CONST_RETURN gchar *
354 gdk_display_get_name (GdkDisplay * display)
356 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
358 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
362 * gdk_display_get_n_screens:
363 * @display: a #GdkDisplay
365 * Gets the number of screen managed by the @display.
367 * Returns: number of screens.
372 gdk_display_get_n_screens (GdkDisplay * display)
374 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
376 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
380 * gdk_display_get_screen:
381 * @display: a #GdkDisplay
382 * @screen_num: the screen number
384 * Returns a screen object for one of the screens of the display.
386 * Returns: the #GdkScreen object
391 gdk_display_get_screen (GdkDisplay * display, gint screen_num)
393 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
394 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
396 return GDK_DISPLAY_X11 (display)->screens[screen_num];
400 * gdk_display_get_default_screen:
401 * @display: a #GdkDisplay
403 * Get the default #GdkScreen for @display.
405 * Returns: the default #GdkScreen object for @display
410 gdk_display_get_default_screen (GdkDisplay * display)
412 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
414 return GDK_DISPLAY_X11 (display)->default_screen;
418 _gdk_x11_display_is_root_window (GdkDisplay *display,
421 GdkDisplayX11 *display_x11;
424 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
426 display_x11 = GDK_DISPLAY_X11 (display);
428 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
430 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
437 * gdk_display_pointer_ungrab:
438 * @display: a #GdkDisplay.
439 * @time_: a timestap (e.g. GDK_CURRENT_TIME).
441 * Release any pointer grab.
446 gdk_display_pointer_ungrab (GdkDisplay *display,
451 g_return_if_fail (GDK_IS_DISPLAY (display));
453 xdisplay = GDK_DISPLAY_XDISPLAY (display);
455 _gdk_input_ungrab_pointer (display, time);
456 XUngrabPointer (xdisplay, time);
459 GDK_DISPLAY_X11 (display)->pointer_xgrab_window = NULL;
463 * gdk_display_pointer_is_grabbed:
464 * @display: a #GdkDisplay
466 * Test if the pointer is grabbed.
468 * Returns: %TRUE if an active X pointer grab is in effect
473 gdk_display_pointer_is_grabbed (GdkDisplay * display)
475 g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
477 return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL);
481 * gdk_display_keyboard_ungrab:
482 * @display: a #GdkDisplay.
483 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
485 * Release any keyboard grab
490 gdk_display_keyboard_ungrab (GdkDisplay *display,
495 g_return_if_fail (GDK_IS_DISPLAY (display));
497 xdisplay = GDK_DISPLAY_XDISPLAY (display);
499 XUngrabKeyboard (xdisplay, time);
502 GDK_DISPLAY_X11 (display)->keyboard_xgrab_window = NULL;
507 * @display: a #GdkDisplay
509 * Emits a short beep on @display
514 gdk_display_beep (GdkDisplay * display)
516 g_return_if_fail (GDK_IS_DISPLAY (display));
518 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
523 * @display: a #GdkDisplay
525 * Flushes any requests queued for the windowing system and waits until all
526 * requests have been handled. This is often used for making sure that the
527 * display is synchronized with the current state of the program. Calling
528 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
529 * generated from earlier requests are handled before the error trap is
532 * This is most useful for X11. On windowing systems where requests are
533 * handled synchronously, this function will do nothing.
538 gdk_display_sync (GdkDisplay * display)
540 g_return_if_fail (GDK_IS_DISPLAY (display));
542 XSync (GDK_DISPLAY_XDISPLAY (display), False);
547 * @display: a #GdkDisplay
549 * Flushes any requests queued for the windowing system; this happens automatically
550 * when the main loop blocks waiting for new events, but if your application
551 * is drawing without returning control to the main loop, you may need
552 * to call this function explicitely. A common case where this function
553 * needs to be called is when an application is executing drawing commands
554 * from a thread other than the thread where the main loop is running.
556 * This is most useful for X11. On windowing systems where requests are
557 * handled synchronously, this function will do nothing.
562 gdk_display_flush (GdkDisplay *display)
564 g_return_if_fail (GDK_IS_DISPLAY (display));
566 if (!display->closed)
567 XFlush (GDK_DISPLAY_XDISPLAY (display));
571 * gdk_display_get_default_group:
572 * @display: a #GdkDisplay
574 * Returns the default group leader window for all toplevel windows
575 * on @display. This window is implicitly created by GDK.
576 * See gdk_window_set_group().
578 * Return value: The default group leader window for @display
582 GdkWindow *gdk_display_get_default_group (GdkDisplay *display)
584 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
586 return GDK_DISPLAY_X11 (display)->leader_gdk_window;
590 * gdk_x11_display_grab:
591 * @display: a #GdkDisplay
593 * Call XGrabServer() on @display.
594 * To ungrab the display again, use gdk_x11_display_ungrab().
596 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
601 gdk_x11_display_grab (GdkDisplay * display)
603 GdkDisplayX11 *display_x11;
605 g_return_if_fail (GDK_IS_DISPLAY (display));
607 display_x11 = GDK_DISPLAY_X11 (display);
609 if (display_x11->grab_count == 0)
610 XGrabServer (display_x11->xdisplay);
611 display_x11->grab_count++;
615 * gdk_x11_display_ungrab:
616 * @display: a #GdkDisplay
618 * Ungrab @display after it has been grabbed with
619 * gdk_x11_display_grab().
624 gdk_x11_display_ungrab (GdkDisplay * display)
626 GdkDisplayX11 *display_x11;
628 g_return_if_fail (GDK_IS_DISPLAY (display));
630 display_x11 = GDK_DISPLAY_X11 (display);;
631 g_return_if_fail (display_x11->grab_count > 0);
633 display_x11->grab_count--;
634 if (display_x11->grab_count == 0)
636 XUngrabServer (display_x11->xdisplay);
637 XFlush (display_x11->xdisplay);
642 gdk_display_x11_dispose (GObject *object)
644 GdkDisplayX11 *display_x11;
647 display_x11 = GDK_DISPLAY_X11 (object);
649 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
650 _gdk_screen_close (display_x11->screens[i]);
652 g_source_destroy (display_x11->event_source);
654 XCloseDisplay (display_x11->xdisplay);
655 display_x11->xdisplay = NULL;
657 G_OBJECT_CLASS (parent_class)->dispose (object);
661 gdk_display_x11_finalize (GObject *object)
663 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
666 /* FIXME need to write GdkKeymap finalize fct
667 g_object_unref (display_x11->keymap);
670 if (display_x11->motif_target_lists)
672 for (i = 0; i < display_x11->motif_n_target_lists; i++)
673 g_list_free (display_x11->motif_target_lists[i]);
674 g_free (display_x11->motif_target_lists);
678 g_hash_table_destroy (display_x11->atom_from_virtual);
679 g_hash_table_destroy (display_x11->atom_to_virtual);
681 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
682 /* list of filters for client messages */
683 g_list_free (display_x11->client_filters);
684 /* List of event window extraction functions */
685 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
686 g_slist_free (display_x11->event_types);
688 g_hash_table_destroy (display_x11->xid_ht);
689 /* input GdkDevice list */
690 /* FIXME need to write finalize fct */
691 for (tmp = display_x11->input_devices; tmp; tmp = tmp->next)
692 g_object_unref (tmp->data);
693 g_list_free (display_x11->input_devices);
694 /* input GdkWindow list */
695 for (tmp = display_x11->input_windows; tmp; tmp = tmp->next)
696 g_object_unref (tmp->data);
697 g_list_free (display_x11->input_windows);
698 /* Free all GdkScreens */
699 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
700 g_object_unref (display_x11->screens[i]);
701 g_free (display_x11->screens);
702 g_free (display_x11->startup_notification_id);
704 G_OBJECT_CLASS (parent_class)->finalize (object);
708 * gdk_x11_lookup_xdisplay:
709 * @xdisplay: a pointer to an X Display
711 * Find the #GdkDisplay corresponding to @display, if any exists.
713 * Return value: the #GdkDisplay, if found, otherwise %NULL.
718 gdk_x11_lookup_xdisplay (Display *xdisplay)
722 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
724 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
725 return tmp_list->data;
732 * _gdk_x11_display_screen_for_xrootwin:
733 * @display: a #Display
734 * @xrootwin: window ID for one of of the screen's of the display.
736 * Given the root window ID of one of the screen's of a #GdkDisplay,
739 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
742 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
747 n_screens = gdk_display_get_n_screens (display);
748 for (i = 0; i < n_screens; i++)
750 GdkScreen *screen = gdk_display_get_screen (display, i);
751 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
759 * gdk_x11_display_get_xdisplay:
760 * @display: a #GdkDisplay
761 * @returns: an X display.
763 * Returns the X display of a #GdkDisplay.
768 gdk_x11_display_get_xdisplay (GdkDisplay *display)
770 return GDK_DISPLAY_X11 (display)->xdisplay;
774 _gdk_windowing_set_default_display (GdkDisplay *display)
776 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
777 const gchar *startup_id;
780 gdk_display = GDK_DISPLAY_XDISPLAY (display);
784 g_free (display_x11->startup_notification_id);
785 display_x11->startup_notification_id = NULL;
787 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
788 if (startup_id && *startup_id != '\0')
790 if (!g_utf8_validate (startup_id, -1, NULL))
791 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
793 display_x11->startup_notification_id = g_strdup (startup_id);
795 /* Clear the environment variable so it won't be inherited by
796 * child processes and confuse things.
798 g_unsetenv ("DESKTOP_STARTUP_ID");
800 /* Set the startup id on the leader window so it
801 * applies to all windows we create on this display
803 XChangeProperty (display_x11->xdisplay,
804 display_x11->leader_window,
805 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
806 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
808 startup_id, strlen (startup_id));
813 escape_for_xmessage (const char *str)
818 retval = g_string_new (NULL);
828 g_string_append_c (retval, '\\');
832 g_string_append_c (retval, *p);
836 return g_string_free (retval, FALSE);
840 broadcast_xmessage (GdkDisplay *display,
841 const char *message_type,
842 const char *message_type_begin,
845 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
846 GdkScreen *screen = gdk_display_get_default_screen (display);
847 GdkWindow *root_window = gdk_screen_get_root_window (screen);
848 Window xroot_window = GDK_WINDOW_XID (root_window);
851 Atom type_atom_begin;
855 XSetWindowAttributes attrs;
857 attrs.override_redirect = True;
858 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
861 XCreateWindow (xdisplay,
868 CWOverrideRedirect | CWEventMask,
872 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
874 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
884 xevent.xclient.type = ClientMessage;
885 xevent.xclient.message_type = type_atom_begin;
886 xevent.xclient.display =xdisplay;
887 xevent.xclient.window = xwindow;
888 xevent.xclient.format = 8;
891 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
893 while (src != src_end)
895 dest = &xevent.xclient.data.b[0];
896 dest_end = dest + 20;
898 while (dest != dest_end &&
906 while (dest != dest_end)
912 XSendEvent (xdisplay,
918 xevent.xclient.message_type = type_atom;
922 XDestroyWindow (xdisplay, xwindow);
927 * gdk_notify_startup_complete:
929 * Indicates to the GUI environment that the application has finished
930 * loading. If the applications opens windows, this function is
931 * normally called after opening the application's initial set of
934 * GTK+ will call this function automatically after opening the first
935 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
936 * to disable that feature.
941 gdk_notify_startup_complete (void)
944 GdkDisplayX11 *display_x11;
948 display = gdk_display_get_default ();
952 display_x11 = GDK_DISPLAY_X11 (display);
954 if (display_x11->startup_notification_id == NULL)
957 escaped_id = escape_for_xmessage (display_x11->startup_notification_id);
958 message = g_strdup_printf ("remove: ID=%s", escaped_id);
961 broadcast_xmessage (display,
963 "_NET_STARTUP_INFO_BEGIN",