/* GDK - The GIMP Drawing Kit * gdkdisplay-x11.c * * Copyright 2001 Sun Microsystems Inc. * * Erwann Chenede * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include "gdkx.h" #include "gdkdisplay.h" #include "gdkdisplay-x11.h" #include "gdkscreen.h" #include "gdkscreen-x11.h" #include "gdkinternals.h" #include "gdkinputprivate.h" #include "xsettings-client.h" #include #ifdef HAVE_XKB #include #endif static void gdk_display_x11_class_init (GdkDisplayX11Class *class); static void gdk_display_x11_dispose (GObject *object); static void gdk_display_x11_finalize (GObject *object); static void gdk_internal_connection_watch (Display *display, XPointer arg, gint fd, gboolean opening, XPointer *watch_data); static gpointer parent_class = NULL; GType _gdk_display_x11_get_type (void) { static GType object_type = 0; if (!object_type) { static const GTypeInfo object_info = { sizeof (GdkDisplayX11Class), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) gdk_display_x11_finalize, (GClassInitFunc) gdk_display_x11_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GdkDisplayX11), 0, /* n_preallocs */ (GInstanceInitFunc) NULL, }; object_type = g_type_register_static (GDK_TYPE_DISPLAY, "GdkDisplayX11", &object_info, 0); } return object_type; } static void gdk_display_x11_class_init (GdkDisplayX11Class * class) { GObjectClass *object_class = G_OBJECT_CLASS (class); object_class->dispose = gdk_display_x11_dispose; object_class->finalize = gdk_display_x11_finalize; parent_class = g_type_class_peek_parent (class); } /** * gdk_display_open: * @display_name: the name of the display to open * @returns: a #GdkDisplay, or %NULL if the display * could not be opened. * * Opens a display. * * Since: 2.2 */ GdkDisplay * gdk_display_open (const gchar *display_name) { Display *xdisplay; GdkDisplay *display; GdkDisplayX11 *display_x11; gint argc; gchar **argv; const char *sm_client_id; XClassHint *class_hint; XKeyboardState keyboard_state; gulong pid; gint i; xdisplay = XOpenDisplay (display_name); if (!xdisplay) return NULL; display = g_object_new (GDK_TYPE_DISPLAY_X11, NULL); display_x11 = GDK_DISPLAY_X11 (display); display_x11->use_xft = -1; display_x11->xdisplay = xdisplay; /* Set up handlers for Xlib internal connections */ XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL); /* initialize the display's screens */ display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay)); for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) display_x11->screens[i] = _gdk_x11_screen_new (display, i); /* We need to initialize events after we have the screen * structures in places */ for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) _gdk_x11_events_init_screen (display_x11->screens[i]); /*set the default screen */ display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)]; display_x11->leader_window = XCreateSimpleWindow (display_x11->xdisplay, GDK_SCREEN_X11 (display_x11->default_screen)->xroot_window, 10, 10, 10, 10, 0, 0, 0); display_x11->leader_window_title_set = FALSE; display_x11->have_shape = GDK_UNKNOWN; display_x11->gravity_works = GDK_UNKNOWN; if (_gdk_synchronize) XSynchronize (display_x11->xdisplay, True); class_hint = XAllocClassHint(); class_hint->res_name = g_get_prgname (); class_hint->res_class = (char *)gdk_get_program_class (); _gdk_get_command_line_args (&argc, &argv); XmbSetWMProperties (display_x11->xdisplay, display_x11->leader_window, NULL, NULL, argv, argc, NULL, NULL, class_hint); XFree (class_hint); sm_client_id = _gdk_get_sm_client_id (); if (sm_client_id) _gdk_windowing_display_set_sm_client_id (display, sm_client_id); pid = getpid (); XChangeProperty (display_x11->xdisplay, display_x11->leader_window, gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"), XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1); XGetKeyboardControl (display_x11->xdisplay, &keyboard_state); #ifdef HAVE_XKB { gint xkb_major = XkbMajorVersion; gint xkb_minor = XkbMinorVersion; if (XkbLibraryVersion (&xkb_major, &xkb_minor)) { xkb_major = XkbMajorVersion; xkb_minor = XkbMinorVersion; if (XkbQueryExtension (display_x11->xdisplay, NULL, &display_x11->xkb_event_type, NULL, &xkb_major, &xkb_minor)) { Bool detectable_autorepeat_supported; display_x11->use_xkb = TRUE; XkbSelectEvents (display_x11->xdisplay, XkbUseCoreKbd, XkbMapNotifyMask | XkbStateNotifyMask, XkbMapNotifyMask | XkbStateNotifyMask); XkbSetDetectableAutoRepeat (display_x11->xdisplay, True, &detectable_autorepeat_supported); GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.", detectable_autorepeat_supported ? "supported" : "not supported")); display_x11->have_xkb_autorepeat = detectable_autorepeat_supported; } } } #endif _gdk_windowing_image_init (display); _gdk_events_init (display); _gdk_input_init (display); _gdk_dnd_init (display); g_signal_emit_by_name (gdk_display_manager_get(), "display_opened", display); return display; } /* * XLib internal connection handling */ typedef struct _GdkInternalConnection GdkInternalConnection; struct _GdkInternalConnection { gint fd; GSource *source; Display *display; }; static gboolean process_internal_connection (GIOChannel *gioc, GIOCondition cond, gpointer data) { GdkInternalConnection *connection = (GdkInternalConnection *)data; GDK_THREADS_ENTER (); XProcessInternalConnection ((Display*)connection->display, connection->fd); GDK_THREADS_LEAVE (); return TRUE; } static GdkInternalConnection * gdk_add_connection_handler (Display *display, guint fd) { GIOChannel *io_channel; GdkInternalConnection *connection; connection = g_new (GdkInternalConnection, 1); connection->fd = fd; connection->display = display; io_channel = g_io_channel_unix_new (fd); connection->source = g_io_create_watch (io_channel, G_IO_IN); g_source_set_callback (connection->source, (GSourceFunc)process_internal_connection, connection, NULL); g_source_attach (connection->source, NULL); g_io_channel_unref (io_channel); return connection; } static void gdk_remove_connection_handler (GdkInternalConnection *connection) { g_source_destroy (connection->source); g_free (connection); } static void gdk_internal_connection_watch (Display *display, XPointer arg, gint fd, gboolean opening, XPointer *watch_data) { if (opening) *watch_data = (XPointer)gdk_add_connection_handler (display, fd); else gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data); } /** * gdk_display_get_name: * @display: a #GdkDisplay * * Gets the name of the display. * * Returns: a string representing the display name. This string is owned * by GDK and should not be modified or freed. * * Since: 2.2 */ G_CONST_RETURN gchar * gdk_display_get_name (GdkDisplay * display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); return (gchar *) DisplayString (GDK_DISPLAY_X11 (display)->xdisplay); } /** * gdk_display_get_n_screens: * @display: a #GdkDisplay * * Gets the number of screen managed by the @display. * * Returns: number of screens. * * Since: 2.2 */ gint gdk_display_get_n_screens (GdkDisplay * display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), 0); return ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay); } /** * gdk_display_get_screen: * @display: a #GdkDisplay * @screen_num: the screen number * * Returns a screen object for one of the screens of the display. * * Returns: the #GdkScreen object * * Since: 2.2 */ GdkScreen * gdk_display_get_screen (GdkDisplay * display, gint screen_num) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); g_return_val_if_fail (ScreenCount (GDK_DISPLAY_X11 (display)->xdisplay) > screen_num, NULL); return GDK_DISPLAY_X11 (display)->screens[screen_num]; } /** * gdk_display_get_default_screen: * @display: a #GdkDisplay * * Get the default #GdkScreen for @display. * * Returns: the default #GdkScreen object for @display * * Since: 2.2 */ GdkScreen * gdk_display_get_default_screen (GdkDisplay * display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL); return GDK_DISPLAY_X11 (display)->default_screen; } gboolean _gdk_x11_display_is_root_window (GdkDisplay *display, Window xroot_window) { GdkDisplayX11 *display_x11; gint i; g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE); display_x11 = GDK_DISPLAY_X11 (display); for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) { if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window) return TRUE; } return FALSE; } /** * gdk_display_pointer_ungrab: * @display: a #GdkDisplay. * @time_: a timestap (e.g. GDK_CURRENT_TIME). * * Release any pointer grab. * * Since: 2.2 */ void gdk_display_pointer_ungrab (GdkDisplay *display, guint32 time) { g_return_if_fail (GDK_IS_DISPLAY (display)); _gdk_input_ungrab_pointer (display, time); XUngrabPointer (GDK_DISPLAY_XDISPLAY (display), time); GDK_DISPLAY_X11 (display)->pointer_xgrab_window = NULL; } /** * gdk_display_pointer_is_grabbed: * @display: a #GdkDisplay * * Test if the pointer is grabbed. * * Returns: %TRUE if an active X pointer grab is in effect * * Since: 2.2 */ gboolean gdk_display_pointer_is_grabbed (GdkDisplay * display) { g_return_val_if_fail (GDK_IS_DISPLAY (display), TRUE); return (GDK_DISPLAY_X11 (display)->pointer_xgrab_window != NULL); } /** * gdk_display_keyboard_ungrab: * @display: a #GdkDisplay. * @time_: a timestap (e.g #GDK_CURRENT_TIME). * * Release any keyboard grab * * Since: 2.2 */ void gdk_display_keyboard_ungrab (GdkDisplay *display, guint32 time) { g_return_if_fail (GDK_IS_DISPLAY (display)); XUngrabKeyboard (GDK_DISPLAY_XDISPLAY (display), time); GDK_DISPLAY_X11 (display)->keyboard_xgrab_window = NULL; } /** * gdk_display_beep: * @display: a #GdkDisplay * * Emits a short beep on @display * * Since: 2.2 */ void gdk_display_beep (GdkDisplay * display) { g_return_if_fail (GDK_IS_DISPLAY (display)); XBell (GDK_DISPLAY_XDISPLAY (display), 0); } /** * gdk_display_sync: * @display: a #GdkDisplay * * Flushes any requests queued for the windowing system and waits until all * requests have been handled. This is often used for making sure that the * display is synchronized with the current state of the program. Calling * gdk_display_sync() before gdk_error_trap_pop() makes sure that any errors * generated from earlier requests are handled before the error trap is * removed. * * This is most useful for X11. On windowing systems where requests are * handled synchronously, this function will do nothing. * * Since: 2.2 */ void gdk_display_sync (GdkDisplay * display) { g_return_if_fail (GDK_IS_DISPLAY (display)); XSync (GDK_DISPLAY_XDISPLAY (display), False); } /** * gdk_x11_display_grab: * @display: a #GdkDisplay * * Call XGrabServer() on @display. * To ungrab the display again, use gdk_x11_display_ungrab(). * * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested. * * Since: 2.2 **/ void gdk_x11_display_grab (GdkDisplay * display) { GdkDisplayX11 *display_x11; g_return_if_fail (GDK_IS_DISPLAY (display)); display_x11 = GDK_DISPLAY_X11 (display); if (display_x11->grab_count == 0) XGrabServer (display_x11->xdisplay); display_x11->grab_count++; } /** * gdk_x11_display_ungrab: * @display: a #GdkDisplay * * Ungrab @display after it has been grabbed with * gdk_x11_display_grab(). * * Since: 2.2 **/ void gdk_x11_display_ungrab (GdkDisplay * display) { GdkDisplayX11 *display_x11; g_return_if_fail (GDK_IS_DISPLAY (display)); display_x11 = GDK_DISPLAY_X11 (display);; g_return_if_fail (display_x11->grab_count > 0); display_x11->grab_count--; if (display_x11->grab_count == 0) XUngrabServer (display_x11->xdisplay); } static void gdk_display_x11_dispose (GObject *object) { GdkDisplayX11 *display_x11; gint i; display_x11 = GDK_DISPLAY_X11 (object); for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) _gdk_screen_close (display_x11->screens[i]); g_source_destroy (display_x11->event_source); XCloseDisplay (display_x11->xdisplay); display_x11->xdisplay = NULL; G_OBJECT_CLASS (parent_class)->dispose (object); } static void gdk_display_x11_finalize (GObject *object) { GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (object); int i; GList *tmp; /* FIXME need to write GdkKeymap finalize fct g_object_unref (display_x11->keymap); */ /* Free motif Dnd */ if (display_x11->motif_target_lists) { for (i = 0; i < display_x11->motif_n_target_lists; i++) g_list_free (display_x11->motif_target_lists[i]); g_free (display_x11->motif_target_lists); } /* Atom Hashtable */ g_hash_table_destroy (display_x11->atom_from_virtual); g_hash_table_destroy (display_x11->atom_to_virtual); /* Leader Window */ XDestroyWindow (display_x11->xdisplay, display_x11->leader_window); /* list of filters for client messages */ g_list_free (display_x11->client_filters); /* X ID hashtable */ g_hash_table_destroy (display_x11->xid_ht); /* input GdkDevice list */ /* FIXME need to write finalize fct */ for (tmp = display_x11->input_devices; tmp; tmp = tmp->next) g_object_unref (tmp->data); g_list_free (display_x11->input_devices); /* input GdkWindow list */ for (tmp = display_x11->input_windows; tmp; tmp = tmp->next) g_object_unref (tmp->data); g_list_free (display_x11->input_windows); /* Free all GdkScreens */ for (i = 0; i < ScreenCount (display_x11->xdisplay); i++) g_object_unref (display_x11->screens[i]); g_free (display_x11->screens); g_free (display_x11->startup_notification_id); G_OBJECT_CLASS (parent_class)->finalize (object); } /** * gdk_x11_lookup_xdisplay: * @xdisplay: a pointer to an X Display * * Find the #GdkDisplay corresponding to @display, if any exists. * * Return value: the #GdkDisplay, if found, otherwise %NULL. * * Since: 2.2 **/ GdkDisplay * gdk_x11_lookup_xdisplay (Display *xdisplay) { GSList *tmp_list; for (tmp_list = _gdk_displays; tmp_list; tmp_list = tmp_list->next) { if (GDK_DISPLAY_XDISPLAY (tmp_list->data) == xdisplay) return tmp_list->data; } return NULL; } /** * _gdk_x11_display_screen_for_xrootwin: * @display: a #Display * @xrootwin: window ID for one of of the screen's of the display. * * Given the root window ID of one of the screen's of a #GdkDisplay, * finds the screen. * * Return value: the #GdkScreen corresponding to @xrootwin, or %NULL. **/ GdkScreen * _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display, Window xrootwin) { gint n_screens, i; n_screens = gdk_display_get_n_screens (display); for (i = 0; i < n_screens; i++) { GdkScreen *screen = gdk_display_get_screen (display, i); if (GDK_SCREEN_XROOTWIN (screen) == xrootwin) return screen; } return NULL; } /** * gdk_x11_display_get_xdisplay: * @display: a #GdkDisplay * @returns: an X display. * * Returns the X display of a #GdkDisplay. * * Since: 2.2 */ Display * gdk_x11_display_get_xdisplay (GdkDisplay *display) { return GDK_DISPLAY_X11 (display)->xdisplay; } void _gdk_windowing_set_default_display (GdkDisplay *display) { GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display); const gchar *startup_id; if (display) gdk_display = GDK_DISPLAY_XDISPLAY (display); else gdk_display = NULL; g_free (display_x11->startup_notification_id); display_x11->startup_notification_id = NULL; startup_id = g_getenv ("DESKTOP_STARTUP_ID"); if (startup_id && *startup_id != '\0') { if (!g_utf8_validate (startup_id, -1, NULL)) g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8"); else display_x11->startup_notification_id = g_strdup (startup_id); /* Clear the environment variable so it won't be inherited by * child processes and confuse things. unsetenv isn't portable, * right... */ putenv ("DESKTOP_STARTUP_ID="); /* Set the startup id on the leader window so it * applies to all windows we create on this display */ XChangeProperty (display_x11->xdisplay, display_x11->leader_window, gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"), gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8, PropModeReplace, startup_id, strlen (startup_id)); } } char* escape_for_xmessage (const char *str) { GString *retval; const char *p; retval = g_string_new (""); p = str; while (*p) { switch (*p) { case ' ': case '"': case '\\': g_string_append_c (retval, '\\'); break; } g_string_append_c (retval, *p); ++p; } return g_string_free (retval, FALSE); } static void broadcast_xmessage (GdkDisplay *display, const char *message_type, const char *message_type_begin, const char *message) { Display *xdisplay = GDK_DISPLAY_XDISPLAY (display); GdkScreen *screen = gdk_display_get_default_screen (display); GdkWindow *root_window = gdk_screen_get_root_window (screen); Window xroot_window = GDK_WINDOW_XID (root_window); Atom type_atom; Atom type_atom_begin; Window xwindow; { XSetWindowAttributes attrs; attrs.override_redirect = True; attrs.event_mask = PropertyChangeMask | StructureNotifyMask; xwindow = XCreateWindow (xdisplay, xroot_window, -100, -100, 1, 1, 0, CopyFromParent, CopyFromParent, CopyFromParent, CWOverrideRedirect | CWEventMask, &attrs); } type_atom = gdk_x11_get_xatom_by_name_for_display (display, message_type); type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display, message_type_begin); { XEvent xevent; const char *src; const char *src_end; char *dest; char *dest_end; xevent.xclient.type = ClientMessage; xevent.xclient.message_type = type_atom_begin; xevent.xclient.display =xdisplay; xevent.xclient.window = xwindow; xevent.xclient.format = 8; src = message; src_end = message + strlen (message) + 1; /* +1 to include nul byte */ while (src != src_end) { dest = &xevent.xclient.data.b[0]; dest_end = dest + 20; while (dest != dest_end && src != src_end) { *dest = *src; ++dest; ++src; } XSendEvent (xdisplay, xroot_window, False, PropertyChangeMask, &xevent); xevent.xclient.message_type = type_atom; } } XDestroyWindow (xdisplay, xwindow); XFlush (xdisplay); } /** * gdk_notify_startup_complete: * * Indicates to the GUI environment that the application has finished * loading. If the applications opens windows, this function is * normally called after opening the application's initial set of * windows. * * GTK+ will call this function automatically after opening the first * #GtkWindow unless gtk_window_set_auto_startup_notification() is called * to disable that feature. * * Since: 2.2 **/ void gdk_notify_startup_complete (void) { GdkDisplay *display; GdkDisplayX11 *display_x11; gchar *escaped_id; gchar *message; display = gdk_display_get_default (); if (!display) return; display_x11 = GDK_DISPLAY_X11 (display); if (display_x11->startup_notification_id == NULL) return; escaped_id = escape_for_xmessage (display_x11->startup_notification_id); message = g_strdup_printf ("remove: ID=%s", escaped_id); g_free (escaped_id); broadcast_xmessage (display, "_NET_STARTUP_INFO", "_NET_STARTUP_INFO_BEGIN", message); g_free (message); }