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->have_shape = GDK_UNKNOWN;
184 display_x11->gravity_works = GDK_UNKNOWN;
185 display_x11->have_render = GDK_UNKNOWN;
187 if (_gdk_synchronize)
188 XSynchronize (display_x11->xdisplay, True);
190 _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
192 class_hint = XAllocClassHint();
193 class_hint->res_name = g_get_prgname ();
195 class_hint->res_class = (char *)gdk_get_program_class ();
196 _gdk_get_command_line_args (&argc, &argv);
197 XmbSetWMProperties (display_x11->xdisplay,
198 display_x11->leader_window,
199 NULL, NULL, argv, argc, NULL, NULL,
203 sm_client_id = _gdk_get_sm_client_id ();
205 _gdk_windowing_display_set_sm_client_id (display, sm_client_id);
208 XChangeProperty (display_x11->xdisplay,
209 display_x11->leader_window,
210 gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
211 XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
215 gint xkb_major = XkbMajorVersion;
216 gint xkb_minor = XkbMinorVersion;
217 if (XkbLibraryVersion (&xkb_major, &xkb_minor))
219 xkb_major = XkbMajorVersion;
220 xkb_minor = XkbMinorVersion;
222 if (XkbQueryExtension (display_x11->xdisplay,
223 NULL, &display_x11->xkb_event_type, NULL,
224 &xkb_major, &xkb_minor))
226 Bool detectable_autorepeat_supported;
228 display_x11->use_xkb = TRUE;
230 XkbSelectEvents (display_x11->xdisplay,
232 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
233 XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
235 XkbSetDetectableAutoRepeat (display_x11->xdisplay,
237 &detectable_autorepeat_supported);
239 GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
240 detectable_autorepeat_supported ?
241 "supported" : "not supported"));
243 display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
249 _gdk_windowing_image_init (display);
250 _gdk_events_init (display);
251 _gdk_input_init (display);
252 _gdk_dnd_init (display);
254 g_signal_emit_by_name (gdk_display_manager_get(),
255 "display_opened", display);
262 * XLib internal connection handling
264 typedef struct _GdkInternalConnection GdkInternalConnection;
266 struct _GdkInternalConnection
274 process_internal_connection (GIOChannel *gioc,
278 GdkInternalConnection *connection = (GdkInternalConnection *)data;
280 GDK_THREADS_ENTER ();
282 XProcessInternalConnection ((Display*)connection->display, connection->fd);
284 GDK_THREADS_LEAVE ();
289 static GdkInternalConnection *
290 gdk_add_connection_handler (Display *display,
293 GIOChannel *io_channel;
294 GdkInternalConnection *connection;
296 connection = g_new (GdkInternalConnection, 1);
299 connection->display = display;
301 io_channel = g_io_channel_unix_new (fd);
303 connection->source = g_io_create_watch (io_channel, G_IO_IN);
304 g_source_set_callback (connection->source,
305 (GSourceFunc)process_internal_connection, connection, NULL);
306 g_source_attach (connection->source, NULL);
308 g_io_channel_unref (io_channel);
314 gdk_remove_connection_handler (GdkInternalConnection *connection)
316 g_source_destroy (connection->source);
321 gdk_internal_connection_watch (Display *display,
325 XPointer *watch_data)
328 *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
330 gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
332 #endif /* HAVE_X11R6 */
335 * gdk_display_get_name:
336 * @display: a #GdkDisplay
338 * Gets the name of the display.
340 * Returns: a string representing the display name. This string is owned
341 * by GDK and should not be modified or freed.
345 G_CONST_RETURN gchar *
346 gdk_display_get_name (GdkDisplay * display)
348 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
350 return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay);
354 * gdk_display_get_n_screens:
355 * @display: a #GdkDisplay
357 * Gets the number of screen managed by the @display.
359 * Returns: number of screens.
364 gdk_display_get_n_screens (GdkDisplay * display)
366 g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
368 return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay);
372 * gdk_display_get_screen:
373 * @display: a #GdkDisplay
374 * @screen_num: the screen number
376 * Returns a screen object for one of the screens of the display.
378 * Returns: the #GdkScreen object
383 gdk_display_get_screen (GdkDisplay * display, gint screen_num)
385 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
386 g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL);
388 return GDK_DISPLAY_X11 (display)->screens[screen_num];
392 * gdk_display_get_default_screen:
393 * @display: a #GdkDisplay
395 * Get the default #GdkScreen for @display.
397 * Returns: the default #GdkScreen object for @display
402 gdk_display_get_default_screen (GdkDisplay * display)
404 g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
406 return GDK_DISPLAY_X11 (display)->default_screen;
410 _gdk_x11_display_is_root_window (GdkDisplay *display,
413 GdkDisplayX11 *display_x11;
416 g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
418 display_x11 = GDK_DISPLAY_X11 (display);
420 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
422 if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
429 * gdk_display_pointer_ungrab:
430 * @display: a #GdkDisplay.
431 * @time_: a timestap (e.g. GDK_CURRENT_TIME).
433 * Release any pointer grab.
438 gdk_display_pointer_ungrab (GdkDisplay *display,
443 g_return_if_fail (GDK_IS_DISPLAY (display));
445 xdisplay = GDK_DISPLAY_XDISPLAY (display);
447 _gdk_input_ungrab_pointer (display, time);
448 XUngrabPointer (xdisplay, time);
451 GDK_DISPLAY_X11 (display)->pointer_xgrab_window = NULL;
455 * gdk_display_pointer_is_grabbed:
456 * @display: a #GdkDisplay
458 * Test if the pointer is grabbed.
460 * Returns: %TRUE if an active X pointer grab is in effect
465 gdk_display_pointer_is_grabbed (GdkDisplay * display)
467 g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE);
469 return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL);
473 * gdk_display_keyboard_ungrab:
474 * @display: a #GdkDisplay.
475 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
477 * Release any keyboard grab
482 gdk_display_keyboard_ungrab (GdkDisplay *display,
487 g_return_if_fail (GDK_IS_DISPLAY (display));
489 xdisplay = GDK_DISPLAY_XDISPLAY (display);
491 XUngrabKeyboard (xdisplay, time);
494 GDK_DISPLAY_X11 (display)->keyboard_xgrab_window = NULL;
499 * @display: a #GdkDisplay
501 * Emits a short beep on @display
506 gdk_display_beep (GdkDisplay * display)
508 g_return_if_fail (GDK_IS_DISPLAY (display));
510 XBell (GDK_DISPLAY_XDISPLAY (display), 0);
515 * @display: a #GdkDisplay
517 * Flushes any requests queued for the windowing system and waits until all
518 * requests have been handled. This is often used for making sure that the
519 * display is synchronized with the current state of the program. Calling
520 * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors
521 * generated from earlier requests are handled before the error trap is
524 * This is most useful for X11. On windowing systems where requests are
525 * handled synchronously, this function will do nothing.
530 gdk_display_sync (GdkDisplay * display)
532 g_return_if_fail (GDK_IS_DISPLAY (display));
534 XSync (GDK_DISPLAY_XDISPLAY (display), False);
539 * @display: a #GdkDisplay
541 * Flushes any requests queued for the windowing system; this happens automatically
542 * when the main loop blocks waiting for new events, but if your application
543 * is drawing without returning control to the main loop, you may need
544 * to call this function explicitely. A common case where this function
545 * needs to be called is when an application is executing drawing commands
546 * from a thread other than the thread where the main loop is running.
548 * This is most useful for X11. On windowing systems where requests are
549 * handled synchronously, this function will do nothing.
554 gdk_display_flush (GdkDisplay *display)
556 g_return_if_fail (GDK_IS_DISPLAY (display));
558 if (!display->closed)
559 XFlush (GDK_DISPLAY_XDISPLAY (display));
563 * gdk_x11_display_grab:
564 * @display: a #GdkDisplay
566 * Call XGrabServer() on @display.
567 * To ungrab the display again, use gdk_x11_display_ungrab().
569 * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
574 gdk_x11_display_grab (GdkDisplay * display)
576 GdkDisplayX11 *display_x11;
578 g_return_if_fail (GDK_IS_DISPLAY (display));
580 display_x11 = GDK_DISPLAY_X11 (display);
582 if (display_x11->grab_count == 0)
583 XGrabServer (display_x11->xdisplay);
584 display_x11->grab_count++;
588 * gdk_x11_display_ungrab:
589 * @display: a #GdkDisplay
591 * Ungrab @display after it has been grabbed with
592 * gdk_x11_display_grab().
597 gdk_x11_display_ungrab (GdkDisplay * display)
599 GdkDisplayX11 *display_x11;
601 g_return_if_fail (GDK_IS_DISPLAY (display));
603 display_x11 = GDK_DISPLAY_X11 (display);;
604 g_return_if_fail (display_x11->grab_count > 0);
606 display_x11->grab_count--;
607 if (display_x11->grab_count == 0)
609 XUngrabServer (display_x11->xdisplay);
610 XFlush (display_x11->xdisplay);
615 gdk_display_x11_dispose (GObject *object)
617 GdkDisplayX11 *display_x11;
620 display_x11 = GDK_DISPLAY_X11 (object);
622 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
623 _gdk_screen_close (display_x11->screens[i]);
625 g_source_destroy (display_x11->event_source);
627 XCloseDisplay (display_x11->xdisplay);
628 display_x11->xdisplay = NULL;
630 G_OBJECT_CLASS (parent_class)->dispose (object);
634 gdk_display_x11_finalize (GObject *object)
636 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object);
639 /* FIXME need to write GdkKeymap finalize fct
640 g_object_unref (display_x11->keymap);
643 if (display_x11->motif_target_lists)
645 for (i = 0; i < display_x11->motif_n_target_lists; i++)
646 g_list_free (display_x11->motif_target_lists[i]);
647 g_free (display_x11->motif_target_lists);
651 g_hash_table_destroy (display_x11->atom_from_virtual);
652 g_hash_table_destroy (display_x11->atom_to_virtual);
654 XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
655 /* list of filters for client messages */
656 g_list_free (display_x11->client_filters);
658 g_hash_table_destroy (display_x11->xid_ht);
659 /* input GdkDevice list */
660 /* FIXME need to write finalize fct */
661 for (tmp = display_x11->input_devices; tmp; tmp = tmp->next)
662 g_object_unref (tmp->data);
663 g_list_free (display_x11->input_devices);
664 /* input GdkWindow list */
665 for (tmp = display_x11->input_windows; tmp; tmp = tmp->next)
666 g_object_unref (tmp->data);
667 g_list_free (display_x11->input_windows);
668 /* Free all GdkScreens */
669 for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
670 g_object_unref (display_x11->screens[i]);
671 g_free (display_x11->screens);
672 g_free (display_x11->startup_notification_id);
674 G_OBJECT_CLASS (parent_class)->finalize (object);
678 * gdk_x11_lookup_xdisplay:
679 * @xdisplay: a pointer to an X Display
681 * Find the #GdkDisplay corresponding to @display, if any exists.
683 * Return value: the #GdkDisplay, if found, otherwise %NULL.
688 gdk_x11_lookup_xdisplay (Display *xdisplay)
692 for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next)
694 if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay)
695 return tmp_list->data;
702 * _gdk_x11_display_screen_for_xrootwin:
703 * @display: a #Display
704 * @xrootwin: window ID for one of of the screen's of the display.
706 * Given the root window ID of one of the screen's of a #GdkDisplay,
709 * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL.
712 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
717 n_screens = gdk_display_get_n_screens (display);
718 for (i = 0; i < n_screens; i++)
720 GdkScreen *screen = gdk_display_get_screen (display, i);
721 if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
729 * gdk_x11_display_get_xdisplay:
730 * @display: a #GdkDisplay
731 * @returns: an X display.
733 * Returns the X display of a #GdkDisplay.
738 gdk_x11_display_get_xdisplay (GdkDisplay *display)
740 return GDK_DISPLAY_X11 (display)->xdisplay;
744 _gdk_windowing_set_default_display (GdkDisplay *display)
746 GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
747 const gchar *startup_id;
750 gdk_display = GDK_DISPLAY_XDISPLAY (display);
754 g_free (display_x11->startup_notification_id);
755 display_x11->startup_notification_id = NULL;
757 startup_id = g_getenv ("DESKTOP_STARTUP_ID");
758 if (startup_id && *startup_id != '\0')
760 if (!g_utf8_validate (startup_id, -1, NULL))
761 g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
763 display_x11->startup_notification_id = g_strdup (startup_id);
765 /* Clear the environment variable so it won't be inherited by
766 * child processes and confuse things. unsetenv isn't portable,
769 putenv ("DESKTOP_STARTUP_ID=");
771 /* Set the startup id on the leader window so it
772 * applies to all windows we create on this display
774 XChangeProperty (display_x11->xdisplay,
775 display_x11->leader_window,
776 gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
777 gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
779 startup_id, strlen (startup_id));
784 escape_for_xmessage (const char *str)
789 retval = g_string_new (NULL);
799 g_string_append_c (retval, '\\');
803 g_string_append_c (retval, *p);
807 return g_string_free (retval, FALSE);
811 broadcast_xmessage (GdkDisplay *display,
812 const char *message_type,
813 const char *message_type_begin,
816 Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
817 GdkScreen *screen = gdk_display_get_default_screen (display);
818 GdkWindow *root_window = gdk_screen_get_root_window (screen);
819 Window xroot_window = GDK_WINDOW_XID (root_window);
822 Atom type_atom_begin;
826 XSetWindowAttributes attrs;
828 attrs.override_redirect = True;
829 attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
832 XCreateWindow (xdisplay,
839 CWOverrideRedirect | CWEventMask,
843 type_atom = gdk_x11_get_xatom_by_name_for_display (display,
845 type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
855 xevent.xclient.type = ClientMessage;
856 xevent.xclient.message_type = type_atom_begin;
857 xevent.xclient.display =xdisplay;
858 xevent.xclient.window = xwindow;
859 xevent.xclient.format = 8;
862 src_end = message + strlen (message) + 1; /* +1 to include nul byte */
864 while (src != src_end)
866 dest = &xevent.xclient.data.b[0];
867 dest_end = dest + 20;
869 while (dest != dest_end &&
877 while (dest != dest_end)
883 XSendEvent (xdisplay,
889 xevent.xclient.message_type = type_atom;
893 XDestroyWindow (xdisplay, xwindow);
898 * gdk_notify_startup_complete:
900 * Indicates to the GUI environment that the application has finished
901 * loading. If the applications opens windows, this function is
902 * normally called after opening the application's initial set of
905 * GTK+ will call this function automatically after opening the first
906 * #GtkWindow unless gtk_window_set_auto_startup_notification() is called
907 * to disable that feature.
912 gdk_notify_startup_complete (void)
915 GdkDisplayX11 *display_x11;
919 display = gdk_display_get_default ();
923 display_x11 = GDK_DISPLAY_X11 (display);
925 if (display_x11->startup_notification_id == NULL)
928 escaped_id = escape_for_xmessage (display_x11->startup_notification_id);
929 message = g_strdup_printf ("remove: ID=%s", escaped_id);
932 broadcast_xmessage (display,
934 "_NET_STARTUP_INFO_BEGIN",