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;
143 const char *sm_client_id;
145 XClassHint *class_hint;
149 xdisplay = XOpenDisplay (display_name);
153 display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL);
154 display_x11 = GDK_DISPLAY_X11 (display);
156 display_x11->use_xft = -1;
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)];
178 display_x11->leader_window = XCreateSimpleWindow (display_x11->xdisplay,
179 GDK_SCREEN_X11 (display_x11->default_screen)->xroot_window,
180 10, 10, 10, 10, 0, 0, 0);
181 display_x11->leader_window_title_set = FALSE;
183 display_x11->gravity_works = GDK_UNKNOWN;
184 display_x11->have_render = GDK_UNKNOWN;
186 if (_gdk_synchronize)
187 XSynchronize (display_x11->xdisplay, True);
189 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
191 class_hint = XAllocClassHint();
192 class_hint->res_name = g_get_prgname ();
194 class_hint->res_class = (char *)gdk_get_program_class ();
195 _gdk_get_command_line_args (&argc, &argv);
196 XmbSetWMProperties (display_x11->xdisplay,
197 display_x11->leader_window,
198 NULL, NULL, argv, argc, NULL, NULL,
202 sm_client_id = _gdk_get_sm_client_id ();
204 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
207 XChangeProperty (display_x11->xdisplay,
208 display_x11->leader_window,
209 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
210 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
214 gint xkb_major = XkbMajorVersion;
215 gint xkb_minor = XkbMinorVersion;
216 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
218 xkb_major = XkbMajorVersion;
219 xkb_minor = XkbMinorVersion;
221 if (XkbQueryExtension (display_x11->xdisplay,
222 NULL, &display_x11->xkb_event_type, NULL,
223 &xkb_major, &xkb_minor))
225 Bool detectable_autorepeat_supported;
227 display_x11->use_xkb = TRUE;
229 XkbSelectEvents (display_x11->xdisplay,
231 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
232 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
234 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
236 &detectable_autorepeat_supported);
238 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
239 detectable_autorepeat_supported ?
240 "supported" : "not supported"));
242 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
248 _gdk_windowing_image_init (display);
249 _gdk_events_init (display);
250 _gdk_input_init (display);
251 _gdk_dnd_init (display);
253 g_signal_emit_by_name (gdk_display_manager_get(),
254 "display_opened", display);
261 * XLib internal connection handling
263 typedef struct _GdkInternalConnection GdkInternalConnection;
265 struct _GdkInternalConnection
273 process_internal_connection (GIOChannel *gioc,
277 GdkInternalConnection *connection = (GdkInternalConnection *)data;
279 GDK_THREADS_ENTER ();
281 XProcessInternalConnection ((Display*)connection->display, connection->fd);
283 GDK_THREADS_LEAVE ();
288 static GdkInternalConnection *
289 gdk_add_connection_handler (Display *display,
292 GIOChannel *io_channel;
293 GdkInternalConnection *connection;
295 connection = g_new (GdkInternalConnection, 1);
298 connection->display = display;
300 io_channel = g_io_channel_unix_new (fd);
302 connection->source = g_io_create_watch (io_channel, G_IO_IN);
303 g_source_set_callback (connection->source,
304 (GSourceFunc)process_internal_connection, connection, NULL);
305 g_source_attach (connection->source, NULL);
307 g_io_channel_unref (io_channel);
313 gdk_remove_connection_handler (GdkInternalConnection *connection)
315 g_source_destroy (connection->source);
320 gdk_internal_connection_watch (Display *display,
324 XPointer *watch_data)
327 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
329 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
331 #endif /* HAVE_X11R6 */
334 * gdk_display_get_name:
335 * @display: a #GdkDisplay
337 * Gets the name of the display.
339 * Returns: a string representing the display name. This string is owned
340 * by GDK and should not be modified or freed.
344 G_CONST_RETURN gchar *
345 gdk_display_get_name (GdkDisplay * display)
347 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
349 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
353 * gdk_display_get_n_screens:
354 * @display: a #GdkDisplay
356 * Gets the number of screen managed by the @display.
358 * Returns: number of screens.
363 gdk_display_get_n_screens (GdkDisplay * display)
365 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
367 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
371 * gdk_display_get_screen:
372 * @display: a #GdkDisplay
373 * @screen_num: the screen number
375 * Returns a screen object for one of the screens of the display.
377 * Returns: the #GdkScreen object
382 gdk_display_get_screen (GdkDisplay * display, gint screen_num)
384 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
385 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
387 return GDK_DISPLAY_X11 (display)->screens[screen_num];
391 * gdk_display_get_default_screen:
392 * @display: a #GdkDisplay
394 * Get the default #GdkScreen for @display.
396 * Returns: the default #GdkScreen object for @display
401 gdk_display_get_default_screen (GdkDisplay * display)
403 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
405 return GDK_DISPLAY_X11 (display)->default_screen;
409 _gdk_x11_display_is_root_window (GdkDisplay *display,
412 GdkDisplayX11 *display_x11;
415 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
417 display_x11 = GDK_DISPLAY_X11 (display);
419 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
421 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
428 * gdk_display_pointer_ungrab:
429 * @display: a #GdkDisplay.
430 * @time_: a timestap (e.g. GDK_CURRENT_TIME).
432 * Release any pointer grab.
437 gdk_display_pointer_ungrab (GdkDisplay *display,
442 g_return_if_fail (GDK_IS_DISPLAY (display));
444 xdisplay = GDK_DISPLAY_XDISPLAY (display);
446 _gdk_input_ungrab_pointer (display, time);
447 XUngrabPointer (xdisplay, time);
450 GDK_DISPLAY_X11 (display)->pointer_xgrab_window = NULL;
454 * gdk_display_pointer_is_grabbed:
455 * @display: a #GdkDisplay
457 * Test if the pointer is grabbed.
459 * Returns: %TRUE if an active X pointer grab is in effect
464 gdk_display_pointer_is_grabbed (GdkDisplay * display)
466 g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
468 return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL);
472 * gdk_display_keyboard_ungrab:
473 * @display: a #GdkDisplay.
474 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
476 * Release any keyboard grab
481 gdk_display_keyboard_ungrab (GdkDisplay *display,
486 g_return_if_fail (GDK_IS_DISPLAY (display));
488 xdisplay = GDK_DISPLAY_XDISPLAY (display);
490 XUngrabKeyboard (xdisplay, time);
493 GDK_DISPLAY_X11 (display)->keyboard_xgrab_window = NULL;
498 * @display: a #GdkDisplay
500 * Emits a short beep on @display
505 gdk_display_beep (GdkDisplay * display)
507 g_return_if_fail (GDK_IS_DISPLAY (display));
509 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
514 * @display: a #GdkDisplay
516 * Flushes any requests queued for the windowing system and waits until all
517 * requests have been handled. This is often used for making sure that the
518 * display is synchronized with the current state of the program. Calling
519 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
520 * generated from earlier requests are handled before the error trap is
523 * This is most useful for X11. On windowing systems where requests are
524 * handled synchronously, this function will do nothing.
529 gdk_display_sync (GdkDisplay * display)
531 g_return_if_fail (GDK_IS_DISPLAY (display));
533 XSync (GDK_DISPLAY_XDISPLAY (display), False);
538 * @display: a #GdkDisplay
540 * Flushes any requests queued for the windowing system; this happens automatically
541 * when the main loop blocks waiting for new events, but if your application
542 * is drawing without returning control to the main loop, you may need
543 * to call this function explicitely. A common case where this function
544 * needs to be called is when an application is executing drawing commands
545 * from a thread other than the thread where the main loop is running.
547 * This is most useful for X11. On windowing systems where requests are
548 * handled synchronously, this function will do nothing.
553 gdk_display_flush (GdkDisplay *display)
555 g_return_if_fail (GDK_IS_DISPLAY (display));
557 if (!display->closed)
558 XFlush (GDK_DISPLAY_XDISPLAY (display));
562 * gdk_x11_display_grab:
563 * @display: a #GdkDisplay
565 * Call XGrabServer() on @display.
566 * To ungrab the display again, use gdk_x11_display_ungrab().
568 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
573 gdk_x11_display_grab (GdkDisplay * display)
575 GdkDisplayX11 *display_x11;
577 g_return_if_fail (GDK_IS_DISPLAY (display));
579 display_x11 = GDK_DISPLAY_X11 (display);
581 if (display_x11->grab_count == 0)
582 XGrabServer (display_x11->xdisplay);
583 display_x11->grab_count++;
587 * gdk_x11_display_ungrab:
588 * @display: a #GdkDisplay
590 * Ungrab @display after it has been grabbed with
591 * gdk_x11_display_grab().
596 gdk_x11_display_ungrab (GdkDisplay * display)
598 GdkDisplayX11 *display_x11;
600 g_return_if_fail (GDK_IS_DISPLAY (display));
602 display_x11 = GDK_DISPLAY_X11 (display);;
603 g_return_if_fail (display_x11->grab_count > 0);
605 display_x11->grab_count--;
606 if (display_x11->grab_count == 0)
608 XUngrabServer (display_x11->xdisplay);
609 XFlush (display_x11->xdisplay);
614 gdk_display_x11_dispose (GObject *object)
616 GdkDisplayX11 *display_x11;
619 display_x11 = GDK_DISPLAY_X11 (object);
621 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
622 _gdk_screen_close (display_x11->screens[i]);
624 g_source_destroy (display_x11->event_source);
626 XCloseDisplay (display_x11->xdisplay);
627 display_x11->xdisplay = NULL;
629 G_OBJECT_CLASS (parent_class)->dispose (object);
633 gdk_display_x11_finalize (GObject *object)
635 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
638 /* FIXME need to write GdkKeymap finalize fct
639 g_object_unref (display_x11->keymap);
642 if (display_x11->motif_target_lists)
644 for (i = 0; i < display_x11->motif_n_target_lists; i++)
645 g_list_free (display_x11->motif_target_lists[i]);
646 g_free (display_x11->motif_target_lists);
650 g_hash_table_destroy (display_x11->atom_from_virtual);
651 g_hash_table_destroy (display_x11->atom_to_virtual);
653 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
654 /* list of filters for client messages */
655 g_list_free (display_x11->client_filters);
656 /* List of event window extraction functions */
657 g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
658 g_slist_free (display_x11->event_types);
660 g_hash_table_destroy (display_x11->xid_ht);
661 /* input GdkDevice list */
662 /* FIXME need to write finalize fct */
663 for (tmp = display_x11->input_devices; tmp; tmp = tmp->next)
664 g_object_unref (tmp->data);
665 g_list_free (display_x11->input_devices);
666 /* input GdkWindow list */
667 for (tmp = display_x11->input_windows; tmp; tmp = tmp->next)
668 g_object_unref (tmp->data);
669 g_list_free (display_x11->input_windows);
670 /* Free all GdkScreens */
671 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
672 g_object_unref (display_x11->screens[i]);
673 g_free (display_x11->screens);
674 g_free (display_x11->startup_notification_id);
676 G_OBJECT_CLASS (parent_class)->finalize (object);
680 * gdk_x11_lookup_xdisplay:
681 * @xdisplay: a pointer to an X Display
683 * Find the #GdkDisplay corresponding to @display, if any exists.
685 * Return value: the #GdkDisplay, if found, otherwise %NULL.
690 gdk_x11_lookup_xdisplay (Display *xdisplay)
694 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
696 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
697 return tmp_list->data;
704 * _gdk_x11_display_screen_for_xrootwin:
705 * @display: a #Display
706 * @xrootwin: window ID for one of of the screen's of the display.
708 * Given the root window ID of one of the screen's of a #GdkDisplay,
711 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
714 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
719 n_screens = gdk_display_get_n_screens (display);
720 for (i = 0; i < n_screens; i++)
722 GdkScreen *screen = gdk_display_get_screen (display, i);
723 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
731 * gdk_x11_display_get_xdisplay:
732 * @display: a #GdkDisplay
733 * @returns: an X display.
735 * Returns the X display of a #GdkDisplay.
740 gdk_x11_display_get_xdisplay (GdkDisplay *display)
742 return GDK_DISPLAY_X11 (display)->xdisplay;
746 _gdk_windowing_set_default_display (GdkDisplay *display)
748 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
749 const gchar *startup_id;
752 gdk_display = GDK_DISPLAY_XDISPLAY (display);
756 g_free (display_x11->startup_notification_id);
757 display_x11->startup_notification_id = NULL;
759 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
760 if (startup_id && *startup_id != '\0')
762 if (!g_utf8_validate (startup_id, -1, NULL))
763 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
765 display_x11->startup_notification_id = g_strdup (startup_id);
767 /* Clear the environment variable so it won't be inherited by
768 * child processes and confuse things. unsetenv isn't portable,
771 putenv ("DESKTOP_STARTUP_ID=");
773 /* Set the startup id on the leader window so it
774 * applies to all windows we create on this display
776 XChangeProperty (display_x11->xdisplay,
777 display_x11->leader_window,
778 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
779 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
781 startup_id, strlen (startup_id));
786 escape_for_xmessage (const char *str)
791 retval = g_string_new (NULL);
801 g_string_append_c (retval, '\\');
805 g_string_append_c (retval, *p);
809 return g_string_free (retval, FALSE);
813 broadcast_xmessage (GdkDisplay *display,
814 const char *message_type,
815 const char *message_type_begin,
818 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
819 GdkScreen *screen = gdk_display_get_default_screen (display);
820 GdkWindow *root_window = gdk_screen_get_root_window (screen);
821 Window xroot_window = GDK_WINDOW_XID (root_window);
824 Atom type_atom_begin;
828 XSetWindowAttributes attrs;
830 attrs.override_redirect = True;
831 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
834 XCreateWindow (xdisplay,
841 CWOverrideRedirect | CWEventMask,
845 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
847 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
857 xevent.xclient.type = ClientMessage;
858 xevent.xclient.message_type = type_atom_begin;
859 xevent.xclient.display =xdisplay;
860 xevent.xclient.window = xwindow;
861 xevent.xclient.format = 8;
864 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
866 while (src != src_end)
868 dest = &xevent.xclient.data.b[0];
869 dest_end = dest + 20;
871 while (dest != dest_end &&
879 while (dest != dest_end)
885 XSendEvent (xdisplay,
891 xevent.xclient.message_type = type_atom;
895 XDestroyWindow (xdisplay, xwindow);
900 * gdk_notify_startup_complete:
902 * Indicates to the GUI environment that the application has finished
903 * loading. If the applications opens windows, this function is
904 * normally called after opening the application's initial set of
907 * GTK+ will call this function automatically after opening the first
908 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
909 * to disable that feature.
914 gdk_notify_startup_complete (void)
917 GdkDisplayX11 *display_x11;
921 display = gdk_display_get_default ();
925 display_x11 = GDK_DISPLAY_X11 (display);
927 if (display_x11->startup_notification_id == NULL)
930 escaped_id = escape_for_xmessage (display_x11->startup_notification_id);
931 message = g_strdup_printf ("remove: ID=%s", escaped_id);
934 broadcast_xmessage (display,
936 "_NET_STARTUP_INFO_BEGIN",