1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 /* By Owen Taylor <otaylor@gtk.org> 98/4/4 */
22 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
23 * file for a list of people on the GTK+ Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
31 #include "gdk/gdkkeysyms.h"
33 #include "gtkmarshalers.h"
34 #include "gtkwindow.h"
36 #include "gtkprivate.h"
37 #include "gtksocket.h"
38 #include "gtksocketprivate.h"
44 /* Forward declararations */
46 static void gtk_socket_finalize (GObject *object);
47 static void gtk_socket_notify (GObject *object,
49 static void gtk_socket_realize (GtkWidget *widget);
50 static void gtk_socket_unrealize (GtkWidget *widget);
51 static void gtk_socket_size_request (GtkWidget *widget,
52 GtkRequisition *requisition);
53 static void gtk_socket_size_allocate (GtkWidget *widget,
54 GtkAllocation *allocation);
55 static void gtk_socket_hierarchy_changed (GtkWidget *widget,
56 GtkWidget *old_toplevel);
57 static void gtk_socket_grab_notify (GtkWidget *widget,
58 gboolean was_grabbed);
59 static gboolean gtk_socket_key_event (GtkWidget *widget,
61 static gboolean gtk_socket_focus (GtkWidget *widget,
62 GtkDirectionType direction);
63 static void gtk_socket_remove (GtkContainer *container,
65 static void gtk_socket_forall (GtkContainer *container,
66 gboolean include_internals,
68 gpointer callback_data);
76 GdkModifierType accel_mods;
85 static guint socket_signals[LAST_SIGNAL] = { 0 };
88 * _gtk_socket_get_private:
90 * @socket: a #GtkSocket
92 * Returns the private data associated with a GtkSocket, creating it
96 _gtk_socket_get_private (GtkSocket *socket)
98 return G_TYPE_INSTANCE_GET_PRIVATE (socket, GTK_TYPE_SOCKET, GtkSocketPrivate);
101 G_DEFINE_TYPE (GtkSocket, gtk_socket, GTK_TYPE_CONTAINER)
104 gtk_socket_finalize (GObject *object)
106 GtkSocket *socket = GTK_SOCKET (object);
108 g_object_unref (socket->accel_group);
109 socket->accel_group = NULL;
111 G_OBJECT_CLASS (gtk_socket_parent_class)->finalize (object);
115 gtk_socket_class_init (GtkSocketClass *class)
117 GtkWidgetClass *widget_class;
118 GtkContainerClass *container_class;
119 GObjectClass *gobject_class;
121 gobject_class = (GObjectClass *) class;
122 widget_class = (GtkWidgetClass*) class;
123 container_class = (GtkContainerClass*) class;
125 gobject_class->finalize = gtk_socket_finalize;
126 gobject_class->notify = gtk_socket_notify;
128 widget_class->realize = gtk_socket_realize;
129 widget_class->unrealize = gtk_socket_unrealize;
130 widget_class->size_request = gtk_socket_size_request;
131 widget_class->size_allocate = gtk_socket_size_allocate;
132 widget_class->hierarchy_changed = gtk_socket_hierarchy_changed;
133 widget_class->grab_notify = gtk_socket_grab_notify;
134 widget_class->key_press_event = gtk_socket_key_event;
135 widget_class->key_release_event = gtk_socket_key_event;
136 widget_class->focus = gtk_socket_focus;
138 /* We don't want to show_all/hide_all the in-process
141 widget_class->show_all = gtk_widget_show;
142 widget_class->hide_all = gtk_widget_hide;
144 container_class->remove = gtk_socket_remove;
145 container_class->forall = gtk_socket_forall;
148 * GtkSocket::plug-added:
149 * @socket_: the object which received the signal
151 * This signal is emitted when a client is successfully
152 * added to the socket.
154 socket_signals[PLUG_ADDED] =
155 g_signal_new (I_("plug_added"),
156 G_OBJECT_CLASS_TYPE (class),
158 G_STRUCT_OFFSET (GtkSocketClass, plug_added),
160 _gtk_marshal_VOID__VOID,
164 * GtkSocket::plug-removed:
165 * @socket_: the object which received the signal
167 * This signal is emitted when a client is removed from the socket.
168 * The default action is to destroy the #GtkSocket widget, so if you
169 * want to reuse it you must add a signal handler that returns %TRUE.
171 * Return value: %TRUE to stop other handlers from being invoked.
173 socket_signals[PLUG_REMOVED] =
174 g_signal_new (I_("plug_removed"),
175 G_OBJECT_CLASS_TYPE (class),
177 G_STRUCT_OFFSET (GtkSocketClass, plug_removed),
178 _gtk_boolean_handled_accumulator, NULL,
179 _gtk_marshal_BOOLEAN__VOID,
182 g_type_class_add_private (gobject_class, sizeof (GtkSocketPrivate));
186 gtk_socket_init (GtkSocket *socket)
188 socket->request_width = 0;
189 socket->request_height = 0;
190 socket->current_width = 0;
191 socket->current_height = 0;
193 socket->plug_window = NULL;
194 socket->plug_widget = NULL;
195 socket->focus_in = FALSE;
196 socket->have_size = FALSE;
197 socket->need_map = FALSE;
198 socket->active = FALSE;
200 socket->accel_group = gtk_accel_group_new ();
201 g_object_set_data (G_OBJECT (socket->accel_group), I_("gtk-socket"), socket);
207 * Create a new empty #GtkSocket.
209 * Return value: the new #GtkSocket.
212 gtk_socket_new (void)
216 socket = g_object_new (GTK_TYPE_SOCKET, NULL);
218 return GTK_WIDGET (socket);
223 * @socket_: a #GtkSocket
224 * @wid: the window ID of an existing toplevel window.
226 * Reparents a pre-existing toplevel window into a #GtkSocket. This is
227 * meant to embed clients that do not know about embedding into a
228 * #GtkSocket, however doing so is inherently unreliable, and using
229 * this function is not recommended.
231 * The #GtkSocket must have already be added into a toplevel window
232 * before you can make this call.
235 gtk_socket_steal (GtkSocket *socket,
238 g_return_if_fail (GTK_IS_SOCKET (socket));
239 g_return_if_fail (GTK_WIDGET_ANCHORED (socket));
241 if (!GTK_WIDGET_REALIZED (socket))
242 gtk_widget_realize (GTK_WIDGET (socket));
244 _gtk_socket_add_window (socket, wid, TRUE);
249 * @socket_: a #GtkSocket
250 * @window_id: the window ID of a client participating in the XEMBED protocol.
252 * Adds an XEMBED client, such as a #GtkPlug, to the #GtkSocket. The
253 * client may be in the same process or in a different process.
255 * To embed a #GtkPlug in a #GtkSocket, you can either create the
256 * #GtkPlug with <literal>gtk_plug_new (0)</literal>, call
257 * gtk_plug_get_id() to get the window ID of the plug, and then pass that to the
258 * gtk_socket_add_id(), or you can call gtk_socket_get_id() to get the
259 * window ID for the socket, and call gtk_plug_new() passing in that
262 * The #GtkSocket must have already be added into a toplevel window
263 * before you can make this call.
266 gtk_socket_add_id (GtkSocket *socket,
267 GdkNativeWindow window_id)
269 g_return_if_fail (GTK_IS_SOCKET (socket));
270 g_return_if_fail (GTK_WIDGET_ANCHORED (socket));
272 if (!GTK_WIDGET_REALIZED (socket))
273 gtk_widget_realize (GTK_WIDGET (socket));
275 _gtk_socket_add_window (socket, window_id, TRUE);
280 * @socket_: a #GtkSocket.
282 * Gets the window ID of a #GtkSocket widget, which can then
283 * be used to create a client embedded inside the socket, for
284 * instance with gtk_plug_new().
286 * The #GtkSocket must have already be added into a toplevel window
287 * before you can make this call.
289 * Return value: the window ID for the socket
292 gtk_socket_get_id (GtkSocket *socket)
294 g_return_val_if_fail (GTK_IS_SOCKET (socket), 0);
295 g_return_val_if_fail (GTK_WIDGET_ANCHORED (socket), 0);
297 if (!GTK_WIDGET_REALIZED (socket))
298 gtk_widget_realize (GTK_WIDGET (socket));
300 return _gtk_socket_windowing_get_id (socket);
304 gtk_socket_realize (GtkWidget *widget)
306 GtkSocket *socket = GTK_SOCKET (widget);
307 GdkWindowAttr attributes;
308 gint attributes_mask;
310 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
312 attributes.window_type = GDK_WINDOW_CHILD;
313 attributes.x = widget->allocation.x;
314 attributes.y = widget->allocation.y;
315 attributes.width = widget->allocation.width;
316 attributes.height = widget->allocation.height;
317 attributes.wclass = GDK_INPUT_OUTPUT;
318 attributes.visual = gtk_widget_get_visual (widget);
319 attributes.colormap = gtk_widget_get_colormap (widget);
320 attributes.event_mask = GDK_FOCUS_CHANGE_MASK;
322 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
324 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
325 &attributes, attributes_mask);
326 gdk_window_set_user_data (widget->window, socket);
328 widget->style = gtk_style_attach (widget->style, widget->window);
329 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
331 _gtk_socket_windowing_realize_window (socket);
333 gdk_window_add_filter (widget->window,
334 _gtk_socket_windowing_filter_func,
337 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
339 /* We sync here so that we make sure that if the XID for
340 * our window is passed to another application, SubstructureRedirectMask
341 * will be set by the time the other app creates its window.
343 gdk_display_sync (gtk_widget_get_display (widget));
347 * _gtk_socket_end_embedding:
349 * @socket: a #GtkSocket
351 * Called to end the embedding of a plug in the socket.
354 _gtk_socket_end_embedding (GtkSocket *socket)
356 GtkSocketPrivate *private = _gtk_socket_get_private (socket);
357 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
360 if (GTK_IS_WINDOW (toplevel))
361 _gtk_socket_windowing_end_embedding_toplevel (socket);
363 g_object_unref (socket->plug_window);
364 socket->plug_window = NULL;
365 socket->current_width = 0;
366 socket->current_height = 0;
367 private->resize_count = 0;
369 /* Remove from end to avoid indexes shifting. This is evil */
370 for (i = socket->accel_group->n_accels - 1; i >= 0; i--)
372 GtkAccelGroupEntry *accel_entry = &socket->accel_group->priv_accels[i];
373 gtk_accel_group_disconnect (socket->accel_group, accel_entry->closure);
378 gtk_socket_unrealize (GtkWidget *widget)
380 GtkSocket *socket = GTK_SOCKET (widget);
382 GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED);
384 if (socket->plug_widget)
386 _gtk_plug_remove_from_socket (GTK_PLUG (socket->plug_widget), socket);
388 else if (socket->plug_window)
390 _gtk_socket_end_embedding (socket);
393 if (GTK_WIDGET_CLASS (gtk_socket_parent_class)->unrealize)
394 (* GTK_WIDGET_CLASS (gtk_socket_parent_class)->unrealize) (widget);
398 gtk_socket_size_request (GtkWidget *widget,
399 GtkRequisition *requisition)
401 GtkSocket *socket = GTK_SOCKET (widget);
403 if (socket->plug_widget)
405 gtk_widget_size_request (socket->plug_widget, requisition);
409 if (socket->is_mapped && !socket->have_size && socket->plug_window)
410 _gtk_socket_windowing_size_request (socket);
412 if (socket->is_mapped && socket->have_size)
414 requisition->width = MAX (socket->request_width, 1);
415 requisition->height = MAX (socket->request_height, 1);
419 requisition->width = 1;
420 requisition->height = 1;
426 gtk_socket_size_allocate (GtkWidget *widget,
427 GtkAllocation *allocation)
429 GtkSocket *socket = GTK_SOCKET (widget);
431 widget->allocation = *allocation;
432 if (GTK_WIDGET_REALIZED (widget))
434 gdk_window_move_resize (widget->window,
435 allocation->x, allocation->y,
436 allocation->width, allocation->height);
438 if (socket->plug_widget)
440 GtkAllocation child_allocation;
442 child_allocation.x = 0;
443 child_allocation.y = 0;
444 child_allocation.width = allocation->width;
445 child_allocation.height = allocation->height;
447 gtk_widget_size_allocate (socket->plug_widget, &child_allocation);
449 else if (socket->plug_window)
451 GtkSocketPrivate *private = _gtk_socket_get_private (socket);
453 gdk_error_trap_push ();
455 if (allocation->width != socket->current_width ||
456 allocation->height != socket->current_height)
458 gdk_window_move_resize (socket->plug_window,
460 allocation->width, allocation->height);
461 if (private->resize_count)
462 private->resize_count--;
464 GTK_NOTE (PLUGSOCKET,
465 g_message ("GtkSocket - allocated: %d %d",
466 allocation->width, allocation->height));
467 socket->current_width = allocation->width;
468 socket->current_height = allocation->height;
471 if (socket->need_map)
473 gdk_window_show (socket->plug_window);
474 socket->need_map = FALSE;
477 while (private->resize_count)
479 _gtk_socket_windowing_send_configure_event (socket);
480 private->resize_count--;
481 GTK_NOTE (PLUGSOCKET,
482 g_message ("GtkSocket - sending synthetic configure: %d %d",
483 allocation->width, allocation->height));
486 gdk_display_sync (gtk_widget_get_display (widget));
487 gdk_error_trap_pop ();
493 activate_key (GtkAccelGroup *accel_group,
494 GObject *acceleratable,
496 GdkModifierType accel_mods,
497 GrabbedKey *grabbed_key)
499 GdkEvent *gdk_event = gtk_get_current_event ();
501 GtkSocket *socket = g_object_get_data (G_OBJECT (accel_group), "gtk-socket");
502 gboolean retval = FALSE;
504 if (gdk_event && gdk_event->type == GDK_KEY_PRESS && socket->plug_window)
506 _gtk_socket_windowing_send_key_event (socket, gdk_event, TRUE);
511 gdk_event_free (gdk_event);
517 find_accel_key (GtkAccelKey *key,
521 GrabbedKey *grabbed_key = data;
523 return (key->accel_key == grabbed_key->accel_key &&
524 key->accel_mods == grabbed_key->accel_mods);
528 * _gtk_socket_add_grabbed_key:
530 * @socket: a #GtkSocket
532 * @modifiers: modifiers for the key
534 * Called from the GtkSocket platform-specific backend when the
535 * corresponding plug has told the socket to grab a key.
538 _gtk_socket_add_grabbed_key (GtkSocket *socket,
540 GdkModifierType modifiers)
543 GrabbedKey *grabbed_key;
545 grabbed_key = g_new (GrabbedKey, 1);
547 grabbed_key->accel_key = keyval;
548 grabbed_key->accel_mods = modifiers;
550 if (gtk_accel_group_find (socket->accel_group,
554 g_warning ("GtkSocket: request to add already present grabbed key %u,%#x\n",
556 g_free (grabbed_key);
560 closure = g_cclosure_new (G_CALLBACK (activate_key), grabbed_key, (GClosureNotify)g_free);
562 gtk_accel_group_connect (socket->accel_group, keyval, modifiers, GTK_ACCEL_LOCKED,
567 * _gtk_socket_remove_grabbed_key:
569 * @socket: a #GtkSocket
571 * @modifiers: modifiers for the key
573 * Called from the GtkSocket backend when the corresponding plug has
574 * told the socket to remove a key grab.
577 _gtk_socket_remove_grabbed_key (GtkSocket *socket,
579 GdkModifierType modifiers)
583 for (i = 0; i < socket->accel_group->n_accels; i++)
585 GtkAccelGroupEntry *accel_entry = &socket->accel_group->priv_accels[i];
586 if (accel_entry->key.accel_key == keyval &&
587 accel_entry->key.accel_mods == modifiers)
589 gtk_accel_group_disconnect (socket->accel_group,
590 accel_entry->closure);
595 g_warning ("GtkSocket: request to remove non-present grabbed key %u,%#x\n",
600 socket_update_focus_in (GtkSocket *socket)
602 gboolean focus_in = FALSE;
604 if (socket->plug_window)
606 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
608 if (GTK_WIDGET_TOPLEVEL (toplevel) &&
609 GTK_WINDOW (toplevel)->has_toplevel_focus &&
610 gtk_widget_is_focus (GTK_WIDGET (socket)))
614 if (focus_in != socket->focus_in)
616 socket->focus_in = focus_in;
618 _gtk_socket_windowing_focus_change (socket, focus_in);
623 socket_update_active (GtkSocket *socket)
625 gboolean active = FALSE;
627 if (socket->plug_window)
629 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
631 if (GTK_WIDGET_TOPLEVEL (toplevel) &&
632 GTK_WINDOW (toplevel)->is_active)
636 if (active != socket->active)
638 socket->active = active;
640 _gtk_socket_windowing_update_active (socket, active);
645 gtk_socket_hierarchy_changed (GtkWidget *widget,
646 GtkWidget *old_toplevel)
648 GtkSocket *socket = GTK_SOCKET (widget);
649 GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
651 if (toplevel && !GTK_IS_WINDOW (toplevel))
654 if (toplevel != socket->toplevel)
656 if (socket->toplevel)
658 gtk_window_remove_accel_group (GTK_WINDOW (socket->toplevel), socket->accel_group);
659 g_signal_handlers_disconnect_by_func (socket->toplevel,
660 socket_update_focus_in,
662 g_signal_handlers_disconnect_by_func (socket->toplevel,
663 socket_update_active,
667 socket->toplevel = toplevel;
671 gtk_window_add_accel_group (GTK_WINDOW (socket->toplevel), socket->accel_group);
672 g_signal_connect_swapped (socket->toplevel, "notify::has-toplevel-focus",
673 G_CALLBACK (socket_update_focus_in), socket);
674 g_signal_connect_swapped (socket->toplevel, "notify::is-active",
675 G_CALLBACK (socket_update_active), socket);
678 socket_update_focus_in (socket);
679 socket_update_active (socket);
684 gtk_socket_grab_notify (GtkWidget *widget,
685 gboolean was_grabbed)
687 GtkSocket *socket = GTK_SOCKET (widget);
689 if (!socket->same_app)
690 _gtk_socket_windowing_update_modality (socket, !was_grabbed);
694 gtk_socket_key_event (GtkWidget *widget,
697 GtkSocket *socket = GTK_SOCKET (widget);
699 if (GTK_WIDGET_HAS_FOCUS (socket) && socket->plug_window && !socket->plug_widget)
701 _gtk_socket_windowing_send_key_event (socket, (GdkEvent *) event, FALSE);
710 gtk_socket_notify (GObject *object,
713 if (!strcmp (pspec->name, "is-focus"))
715 socket_update_focus_in (GTK_SOCKET (object));
719 * _gtk_socket_claim_focus:
721 * @socket: a #GtkSocket
724 * Claims focus for the socket. XXX send_event?
727 _gtk_socket_claim_focus (GtkSocket *socket,
731 socket->focus_in = TRUE; /* Otherwise, our notify handler will send FOCUS_IN */
733 /* Oh, the trickery... */
735 GTK_WIDGET_SET_FLAGS (socket, GTK_CAN_FOCUS);
736 gtk_widget_grab_focus (GTK_WIDGET (socket));
737 GTK_WIDGET_UNSET_FLAGS (socket, GTK_CAN_FOCUS);
741 gtk_socket_focus (GtkWidget *widget,
742 GtkDirectionType direction)
744 GtkSocket *socket = GTK_SOCKET (widget);
746 if (socket->plug_widget)
747 return gtk_widget_child_focus (socket->plug_widget, direction);
749 if (!gtk_widget_is_focus (widget))
751 _gtk_socket_windowing_focus (socket, direction);
752 _gtk_socket_claim_focus (socket, FALSE);
761 gtk_socket_remove (GtkContainer *container,
764 GtkSocket *socket = GTK_SOCKET (container);
766 g_return_if_fail (child == socket->plug_widget);
768 _gtk_plug_remove_from_socket (GTK_PLUG (socket->plug_widget), socket);
772 gtk_socket_forall (GtkContainer *container,
773 gboolean include_internals,
774 GtkCallback callback,
775 gpointer callback_data)
777 GtkSocket *socket = GTK_SOCKET (container);
779 if (socket->plug_widget)
780 (* callback) (socket->plug_widget, callback_data);
784 * _gtk_socket_add_window:
786 * @socket: a #GtkSocket
787 * @xid: the native identifier for a window
788 * @need_reparent: whether the socket's plug's window needs to be
789 * reparented to the socket
791 * Adds a window to a GtkSocket.
794 _gtk_socket_add_window (GtkSocket *socket,
796 gboolean need_reparent)
798 GtkWidget *widget = GTK_WIDGET (socket);
799 GdkDisplay *display = gtk_widget_get_display (widget);
800 gpointer user_data = NULL;
802 socket->plug_window = gdk_window_lookup_for_display (display, xid);
804 if (socket->plug_window)
806 g_object_ref (socket->plug_window);
807 gdk_window_get_user_data (socket->plug_window, &user_data);
810 if (user_data) /* A widget's window in this process */
812 GtkWidget *child_widget = user_data;
814 if (!GTK_IS_PLUG (child_widget))
816 g_warning (G_STRLOC ": Can't add non-GtkPlug to GtkSocket");
817 socket->plug_window = NULL;
818 gdk_error_trap_pop ();
823 _gtk_plug_add_to_socket (GTK_PLUG (child_widget), socket);
825 else /* A foreign window */
828 GdkDragProtocol protocol;
830 gdk_error_trap_push ();
832 if (!socket->plug_window)
834 socket->plug_window = gdk_window_foreign_new_for_display (display, xid);
835 if (!socket->plug_window) /* was deleted before we could get it */
837 gdk_error_trap_pop ();
842 _gtk_socket_windowing_select_plug_window_input (socket);
844 if (gdk_error_trap_pop ())
846 g_object_unref (socket->plug_window);
847 socket->plug_window = NULL;
851 /* OK, we now will reliably get destroy notification on socket->plug_window */
853 gdk_error_trap_push ();
857 gdk_window_hide (socket->plug_window); /* Shouldn't actually be necessary for XEMBED, but just in case */
858 gdk_window_reparent (socket->plug_window, widget->window, 0, 0);
861 socket->have_size = FALSE;
863 _gtk_socket_windowing_embed_get_info (socket);
865 socket->need_map = socket->is_mapped;
867 if (gdk_drag_get_protocol_for_display (display, xid, &protocol))
868 gtk_drag_dest_set_proxy (GTK_WIDGET (socket), socket->plug_window,
871 gdk_display_sync (display);
872 gdk_error_trap_pop ();
874 gdk_window_add_filter (socket->plug_window,
875 _gtk_socket_windowing_filter_func,
878 /* Add a pointer to the socket on our toplevel window */
880 toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
881 if (GTK_IS_WINDOW (toplevel))
882 gtk_window_add_embedded_xid (GTK_WINDOW (toplevel), xid);
884 _gtk_socket_windowing_embed_notify (socket);
886 socket_update_active (socket);
887 socket_update_focus_in (socket);
889 gtk_widget_queue_resize (GTK_WIDGET (socket));
892 if (socket->plug_window)
893 g_signal_emit (socket, socket_signals[PLUG_ADDED], 0);
897 * _gtk_socket_handle_map_request:
899 * @socket: a #GtkSocket
901 * Called from the GtkSocket backend when the plug has been mapped.
904 _gtk_socket_handle_map_request (GtkSocket *socket)
906 if (!socket->is_mapped)
908 socket->is_mapped = TRUE;
909 socket->need_map = TRUE;
911 gtk_widget_queue_resize (GTK_WIDGET (socket));
916 * _gtk_socket_unmap_notify:
918 * @socket: a #GtkSocket
920 * Called from the GtkSocket backend when the plug has been unmapped ???
923 _gtk_socket_unmap_notify (GtkSocket *socket)
925 if (socket->is_mapped)
927 socket->is_mapped = FALSE;
928 gtk_widget_queue_resize (GTK_WIDGET (socket));
933 * _gtk_socket_advance_toplevel_focus:
935 * @socket: a #GtkSocket
936 * @direction: a direction
938 * Called from the GtkSocket backend when the corresponding plug
939 * has told the socket to move the focus.
942 _gtk_socket_advance_toplevel_focus (GtkSocket *socket,
943 GtkDirectionType direction)
947 GtkContainer *container;
949 GtkWidget *old_focus_child;
952 toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
956 if (!GTK_WIDGET_TOPLEVEL (toplevel) || GTK_IS_PLUG (toplevel))
958 gtk_widget_child_focus (toplevel,direction);
962 container = GTK_CONTAINER (toplevel);
963 window = GTK_WINDOW (toplevel);
964 bin = GTK_BIN (toplevel);
966 /* This is a copy of gtk_window_focus(), modified so that we
967 * can detect wrap-around.
969 old_focus_child = container->focus_child;
973 if (gtk_widget_child_focus (old_focus_child, direction))
976 /* We are allowed exactly one wrap-around per sequence of focus
979 if (_gtk_socket_windowing_embed_get_focus_wrapped ())
982 _gtk_socket_windowing_embed_set_focus_wrapped ();
985 if (window->focus_widget)
987 /* Wrapped off the end, clear the focus setting for the toplevel */
988 parent = window->focus_widget->parent;
991 gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
992 parent = GTK_WIDGET (parent)->parent;
995 gtk_window_set_focus (GTK_WINDOW (container), NULL);
998 /* Now try to focus the first widget in the window */
1001 if (gtk_widget_child_focus (bin->child, direction))
1006 #define __GTK_SOCKET_C__
1007 #include "gtkaliasdef.c"