API: Remove GtkPlug, GtkSocket and GtkWin32EmbedWidget

1 files changed, 0 insertions, 1401 deletions

diff --git a/gtk/gtkplug.c b/gtk/gtkplug.c
deleted file mode 100644
index de56b4234d..0000000000
--- a/gtk/gtkplug.c
+++ /dev/null
@@ -1,1401 +0,0 @@
-/* GTK - The GIMP Toolkit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.Free
- */
-
-/* By Owen Taylor <otaylor@gtk.org>              98/4/4 */
-
-/*
- * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
- * file for a list of people on the GTK+ Team.  See the ChangeLog
- * files for a list of changes.  These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
- */
-
-#include "config.h"
-
-#include "gtkdebug.h"
-#include "gtkmain.h"
-#include "gtkmarshalers.h"
-#include "gtkplug.h"
-#include "gtkintl.h"
-#include "gtkprivate.h"
-#include "gtkrender.h"
-#include "gtksocketprivate.h"
-#include "gtkwidgetprivate.h"
-#include "gtkwindowgroup.h"
-#include "gtkwindowprivate.h"
-#include "gtkxembed.h"
-
-#include <gdk/gdkx.h>
-
-/**
- * SECTION:gtkplug
- * @Short_description: Toplevel for embedding into other processes
- * @Title: GtkPlug
- * @include: gtk/gtkx.h
- * @See_also: #GtkSocket
- *
- * Together with #GtkSocket, #GtkPlug provides the ability to embed
- * widgets from one process into another process in a fashion that is
- * transparent to the user. One process creates a #GtkSocket widget
- * and passes the ID of that widget’s window to the other process,
- * which then creates a #GtkPlug with that window ID. Any widgets
- * contained in the #GtkPlug then will appear inside the first
- * application’s window.
- *
- * The communication between a #GtkSocket and a #GtkPlug follows the
- * [XEmbed Protocol](http://www.freedesktop.org/Standards/xembed-spec).
- * This protocol has also been implemented in other toolkits, e.g. Qt,
- * allowing the same level of integration when embedding a Qt widget
- * in GTK+ or vice versa.
- *
- * The #GtkPlug and #GtkSocket widgets are only available when GTK+
- * is compiled for the X11 platform and %GDK_WINDOWING_X11 is defined.
- * They can only be used on a #GdkX11Display. To use #GtkPlug and
- * #GtkSocket, you need to include the `gtk/gtkx.h` header.
- */
-
-struct _GtkPlugPrivate
-{
-  GtkWidget      *modality_window;
-  GtkWindowGroup *modality_group;
-
-  GdkWindow      *socket_window;
-
-  GHashTable     *grabbed_keys;
-
-  guint  same_app : 1;
-};
-
-static void            gtk_plug_get_property          (GObject     *object,
-						       guint        prop_id,
-						       GValue      *value,
-						       GParamSpec  *pspec);
-static void            gtk_plug_finalize              (GObject          *object);
-static void            gtk_plug_realize               (GtkWidget        *widget);
-static void            gtk_plug_unrealize             (GtkWidget        *widget);
-static void            gtk_plug_show                  (GtkWidget        *widget);
-static void            gtk_plug_hide                  (GtkWidget        *widget);
-static void            gtk_plug_map                   (GtkWidget        *widget);
-static void            gtk_plug_unmap                 (GtkWidget        *widget);
-static gboolean        gtk_plug_key_press_event       (GtkWidget        *widget,
-						       GdkEventKey      *event);
-static gboolean        gtk_plug_focus_event           (GtkWidget        *widget,
-						       GdkEventFocus    *event);
-static void            gtk_plug_set_focus             (GtkWindow        *window,
-						       GtkWidget        *focus);
-static gboolean        gtk_plug_focus                 (GtkWidget        *widget,
-						       GtkDirectionType  direction);
-static void            gtk_plug_check_resize          (GtkContainer     *container);
-static void            gtk_plug_keys_changed          (GtkWindow        *window);
-
-static void            xembed_set_info                (GdkWindow        *window,
-				                       unsigned long     flags);
-
-static GtkBinClass *bin_class = NULL;
-
-typedef struct
-{
-  guint			 accelerator_key;
-  GdkModifierType	 accelerator_mods;
-} GrabbedKey;
-
-enum {
-  PROP_0,
-  PROP_EMBEDDED,
-  PROP_SOCKET_WINDOW
-};
-
-enum {
-  EMBEDDED,
-  LAST_SIGNAL
-}; 
-
-static guint plug_signals[LAST_SIGNAL] = { 0 };
-
-G_DEFINE_TYPE_WITH_PRIVATE (GtkPlug, gtk_plug, GTK_TYPE_WINDOW)
-
-static void
-gtk_plug_get_property (GObject    *object,
-		       guint       prop_id,
-		       GValue     *value,
-		       GParamSpec *pspec)
-{
-  GtkPlug *plug = GTK_PLUG (object);
-  GtkPlugPrivate *priv = plug->priv;
-
-  switch (prop_id)
-    {
-    case PROP_EMBEDDED:
-      g_value_set_boolean (value, priv->socket_window != NULL);
-      break;
-    case PROP_SOCKET_WINDOW:
-      g_value_set_object (value, priv->socket_window);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_plug_class_init (GtkPlugClass *class)
-{
-  GObjectClass *gobject_class = (GObjectClass *)class;
-  GtkWidgetClass *widget_class = (GtkWidgetClass *)class;
-  GtkWindowClass *window_class = (GtkWindowClass *)class;
-  GtkContainerClass *container_class = (GtkContainerClass *)class;
-
-  bin_class = g_type_class_peek (GTK_TYPE_BIN);
-
-  gobject_class->get_property = gtk_plug_get_property;
-  gobject_class->finalize = gtk_plug_finalize;
-  
-  widget_class->realize = gtk_plug_realize;
-  widget_class->unrealize = gtk_plug_unrealize;
-  widget_class->key_press_event = gtk_plug_key_press_event;
-  widget_class->focus_in_event = gtk_plug_focus_event;
-  widget_class->focus_out_event = gtk_plug_focus_event;
-
-  widget_class->show = gtk_plug_show;
-  widget_class->hide = gtk_plug_hide;
-  widget_class->map = gtk_plug_map;
-  widget_class->unmap = gtk_plug_unmap;
-  widget_class->focus = gtk_plug_focus;
-
-  gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_PANEL);
-
-  container_class->check_resize = gtk_plug_check_resize;
-
-  window_class->set_focus = gtk_plug_set_focus;
-  window_class->keys_changed = gtk_plug_keys_changed;
-
-  /**
-   * GtkPlug:embedded:
-   *
-   * %TRUE if the plug is embedded in a socket.
-   *
-   * Since: 2.12
-   */
-  g_object_class_install_property (gobject_class,
-				   PROP_EMBEDDED,
-				   g_param_spec_boolean ("embedded",
-							 P_("Embedded"),
-							 P_("Whether the plug is embedded"),
-							 FALSE,
-							 GTK_PARAM_READABLE));
-
-  /**
-   * GtkPlug:socket-window:
-   *
-   * The window of the socket the plug is embedded in.
-   *
-   * Since: 2.14
-   */
-  g_object_class_install_property (gobject_class,
-				   PROP_SOCKET_WINDOW,
-				   g_param_spec_object ("socket-window",
-							P_("Socket Window"),
-							P_("The window of the socket the plug is embedded in"),
-							GDK_TYPE_WINDOW,
-							GTK_PARAM_READABLE));
-
-  /**
-   * GtkPlug::embedded:
-   * @plug: the object on which the signal was emitted
-   *
-   * Gets emitted when the plug becomes embedded in a socket.
-   */ 
-  plug_signals[EMBEDDED] =
-    g_signal_new (I_("embedded"),
-		  G_OBJECT_CLASS_TYPE (class),
-		  G_SIGNAL_RUN_LAST,
-		  G_STRUCT_OFFSET (GtkPlugClass, embedded),
-		  NULL, NULL,
-		  NULL,
-		  G_TYPE_NONE, 0);
-}
-
-static void
-gtk_plug_init (GtkPlug *plug)
-{
-  plug->priv = gtk_plug_get_instance_private (plug);
-
-  gtk_window_set_decorated (GTK_WINDOW (plug), FALSE);
-}
-
-/**
- * gtk_plug_handle_modality_on:
- * @plug: a #GtkPlug
- *
- * Called from the GtkPlug backend when the corresponding socket has
- * told the plug that it modality has toggled on.
- */
-static void
-gtk_plug_handle_modality_on (GtkPlug *plug)
-{
-  GtkPlugPrivate *priv = plug->priv;
-
-  if (!priv->modality_window)
-    {
-      priv->modality_window = gtk_window_new (GTK_WINDOW_POPUP);
-      gtk_window_set_screen (GTK_WINDOW (priv->modality_window),
-			     gtk_widget_get_screen (GTK_WIDGET (plug)));
-      gtk_widget_realize (priv->modality_window);
-      gtk_window_group_add_window (priv->modality_group, GTK_WINDOW (priv->modality_window));
-      gtk_grab_add (priv->modality_window);
-    }
-}
-
-/**
- * gtk_plug_handle_modality_off:
- * @plug: a #GtkPlug
- *
- * Called from the GtkPlug backend when the corresponding socket has
- * told the plug that it modality has toggled off.
- */
-static void
-gtk_plug_handle_modality_off (GtkPlug *plug)
-{
-  GtkPlugPrivate *priv = plug->priv;
-
-  if (priv->modality_window)
-    {
-      gtk_widget_destroy (priv->modality_window);
-      priv->modality_window = NULL;
-    }
-}
-
-static void
-gtk_plug_set_is_child (GtkPlug  *plug,
-		       gboolean  is_child)
-{
-  GtkPlugPrivate *priv = plug->priv;
-  GtkWidget *widget = GTK_WIDGET (plug);
-
-  g_assert (!gtk_widget_get_parent (widget));
-
-  if (is_child)
-    {
-      if (priv->modality_window)
-	gtk_plug_handle_modality_off (plug);
-
-      if (priv->modality_group)
-	{
-	  gtk_window_group_remove_window (priv->modality_group, GTK_WINDOW (plug));
-	  g_object_unref (priv->modality_group);
-	  priv->modality_group = NULL;
-	}
-      
-      /* As a toplevel, the MAPPED flag doesn't correspond
-       * to whether the widget->window is mapped; we unmap
-       * here, but don't bother remapping -- we will get mapped
-       * by gtk_widget_set_parent ().
-       */
-      if (gtk_widget_get_mapped (widget))
-	gtk_widget_unmap (widget);
-
-      _gtk_window_set_is_toplevel (GTK_WINDOW (plug), FALSE);
-      G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
-      gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_PARENT);
-      G_GNUC_END_IGNORE_DEPRECATIONS;
-
-      _gtk_widget_propagate_hierarchy_changed (widget, widget);
-    }
-  else
-    {
-      if (gtk_window_get_focus (GTK_WINDOW (plug)))
-	gtk_window_set_focus (GTK_WINDOW (plug), NULL);
-      if (gtk_window_get_default_widget (GTK_WINDOW (plug)))
-	gtk_window_set_default (GTK_WINDOW (plug), NULL);
-
-      priv->modality_group = gtk_window_group_new ();
-      gtk_window_group_add_window (priv->modality_group, GTK_WINDOW (plug));
-
-      _gtk_window_set_is_toplevel (GTK_WINDOW (plug), TRUE);
-      G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
-      gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_QUEUE);
-      G_GNUC_END_IGNORE_DEPRECATIONS;
-
-      _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), NULL);
-    }
-}
-
-/**
- * gtk_plug_get_id:
- * @plug: a #GtkPlug.
- * 
- * Gets the window ID of a #GtkPlug widget, which can then
- * be used to embed this window inside another window, for
- * instance with gtk_socket_add_id().
- * 
- * Returns: the window ID for the plug
- **/
-Window
-gtk_plug_get_id (GtkPlug *plug)
-{
-  g_return_val_if_fail (GTK_IS_PLUG (plug), 0);
-
-  if (!gtk_widget_get_realized (GTK_WIDGET (plug)))
-    gtk_widget_realize (GTK_WIDGET (plug));
-
-  return GDK_WINDOW_XID (gtk_widget_get_window (GTK_WIDGET (plug)));
-}
-
-/**
- * gtk_plug_get_embedded:
- * @plug: a #GtkPlug
- *
- * Determines whether the plug is embedded in a socket.
- *
- * Returns: %TRUE if the plug is embedded in a socket
- *
- * Since: 2.14
- **/
-gboolean
-gtk_plug_get_embedded (GtkPlug *plug)
-{
-  g_return_val_if_fail (GTK_IS_PLUG (plug), FALSE);
-
-  return plug->priv->socket_window != NULL;
-}
-
-/**
- * gtk_plug_get_socket_window:
- * @plug: a #GtkPlug
- *
- * Retrieves the socket the plug is embedded in.
- *
- * Returns: (nullable) (transfer none): the window of the socket, or %NULL
- *
- * Since: 2.14
- **/
-GdkWindow *
-gtk_plug_get_socket_window (GtkPlug *plug)
-{
-  g_return_val_if_fail (GTK_IS_PLUG (plug), NULL);
-
-  return plug->priv->socket_window;
-}
-
-/**
- * _gtk_plug_add_to_socket:
- * @plug: a #GtkPlug
- * @socket_: a #GtkSocket
- * 
- * Adds a plug to a socket within the same application.
- **/
-void
-_gtk_plug_add_to_socket (GtkPlug   *plug,
-			 GtkSocket *socket_)
-{
-  GtkPlugPrivate *priv;
-  GtkWidget *widget;
-  
-  g_return_if_fail (GTK_IS_PLUG (plug));
-  g_return_if_fail (GTK_IS_SOCKET (socket_));
-  g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (socket_)));
-
-  priv = plug->priv;
-  widget = GTK_WIDGET (plug);
-
-  gtk_plug_set_is_child (plug, TRUE);
-  priv->same_app = TRUE;
-  socket_->priv->same_app = TRUE;
-  socket_->priv->plug_widget = widget;
-
-  priv->socket_window = gtk_widget_get_window (GTK_WIDGET (socket_));
-  g_object_ref (priv->socket_window);
-  g_signal_emit (plug, plug_signals[EMBEDDED], 0);
-  g_object_notify (G_OBJECT (plug), "embedded");
-
-  if (gtk_widget_get_realized (widget))
-    {
-      GdkWindow *window;
-
-      window = gtk_widget_get_window (widget);
-      gdk_window_reparent (window, priv->socket_window,
-                           -gdk_window_get_width (window),
-                           -gdk_window_get_height (window));
-    }
-
-  gtk_widget_set_parent (widget, GTK_WIDGET (socket_));
-
-  g_signal_emit_by_name (socket_, "plug-added");
-}
-
-/*
- * gtk_plug_send_delete_event:
- * @widget: a #GtkWidget
- *
- * Send a GDK_DELETE event to the @widget and destroy it if
- * necessary. Internal GTK function, called from this file or the
- * backend-specific GtkPlug implementation.
- */
-static void
-gtk_plug_send_delete_event (GtkWidget *widget)
-{
-  GdkEvent *event = gdk_event_new (GDK_DELETE);
-
-  event->any.window = g_object_ref (gtk_widget_get_window (widget));
-  event->any.send_event = FALSE;
-
-  g_object_ref (widget);
-
-  if (!gtk_widget_event (widget, event))
-    gtk_widget_destroy (widget);
-
-  g_object_unref (widget);
-
-  gdk_event_free (event);
-}
-
-/**
- * _gtk_plug_remove_from_socket:
- * @plug: a #GtkPlug
- * @socket_: a #GtkSocket
- * 
- * Removes a plug from a socket within the same application.
- **/
-void
-_gtk_plug_remove_from_socket (GtkPlug   *plug,
-			      GtkSocket *socket_)
-{
-  GtkPlugPrivate *priv;
-  GtkWidget *widget;
-  GdkWindow *window;
-  GdkWindow *root_window;
-  gboolean result;
-  gboolean widget_was_visible;
-
-  g_return_if_fail (GTK_IS_PLUG (plug));
-  g_return_if_fail (GTK_IS_SOCKET (socket_));
-  g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (plug)));
-
-  priv = plug->priv;
-  widget = GTK_WIDGET (plug);
-
-  if (_gtk_widget_get_in_reparent (widget))
-    return;
-
-  g_object_ref (plug);
-  g_object_ref (socket_);
-
-  widget_was_visible = gtk_widget_get_visible (widget);
-  window = gtk_widget_get_window (widget);
-  root_window = gdk_screen_get_root_window (gtk_widget_get_screen (widget));
-
-  gdk_window_hide (window);
-  _gtk_widget_set_in_reparent (widget, TRUE);
-  gdk_window_reparent (window, root_window, 0, 0);
-  gtk_widget_unparent (GTK_WIDGET (plug));
-  _gtk_widget_set_in_reparent (widget, FALSE);
-  
-  socket_->priv->plug_widget = NULL;
-  if (socket_->priv->plug_window != NULL)
-    {
-      g_object_unref (socket_->priv->plug_window);
-      socket_->priv->plug_window = NULL;
-    }
-  
-  socket_->priv->same_app = FALSE;
-
-  priv->same_app = FALSE;
-  if (priv->socket_window != NULL)
-    {
-      g_object_unref (priv->socket_window);
-      priv->socket_window = NULL;
-    }
-  gtk_plug_set_is_child (plug, FALSE);
-
-  g_signal_emit_by_name (socket_, "plug-removed", &result);
-  if (!result)
-    gtk_widget_destroy (GTK_WIDGET (socket_));
-
-  if (window)
-    gtk_plug_send_delete_event (widget);
-
-  g_object_unref (plug);
-
-  if (widget_was_visible && gtk_widget_get_visible (GTK_WIDGET (socket_)))
-    gtk_widget_queue_resize (GTK_WIDGET (socket_));
-
-  g_object_unref (socket_);
-}
-
-/**
- * gtk_plug_construct:
- * @plug: a #GtkPlug.
- * @socket_id: the XID of the socket’s window.
- *
- * Finish the initialization of @plug for a given #GtkSocket identified by
- * @socket_id. This function will generally only be used by classes deriving from #GtkPlug.
- **/
-void
-gtk_plug_construct (GtkPlug *plug,
-		    Window   socket_id)
-{
-  gtk_plug_construct_for_display (plug, gdk_display_get_default (), socket_id);
-}
-
-/**
- * gtk_plug_construct_for_display:
- * @plug: a #GtkPlug.
- * @display: the #GdkDisplay associated with @socket_id’s 
- *	     #GtkSocket.
- * @socket_id: the XID of the socket’s window.
- *
- * Finish the initialization of @plug for a given #GtkSocket identified by
- * @socket_id which is currently displayed on @display.
- * This function will generally only be used by classes deriving from #GtkPlug.
- *
- * Since: 2.2
- **/
-void
-gtk_plug_construct_for_display (GtkPlug    *plug,
-				GdkDisplay *display,
-				Window      socket_id)
-{
-  GtkPlugPrivate *priv;
-
-  g_return_if_fail (GTK_IS_PLUG (plug));
-  g_return_if_fail (GDK_IS_DISPLAY (display));
-
-  priv = plug->priv;
-
-  if (socket_id)
-    {
-      gpointer user_data = NULL;
-
-      if (GDK_IS_X11_DISPLAY (display))
-        priv->socket_window = gdk_x11_window_lookup_for_display (display, socket_id);
-      else
-        priv->socket_window = NULL;
-
-      if (priv->socket_window)
-	{
-	  gdk_window_get_user_data (priv->socket_window, &user_data);
-
-	  if (user_data)
-	    {
-	      if (GTK_IS_SOCKET (user_data))
-		_gtk_plug_add_to_socket (plug, user_data);
-	      else
-		{
-		  g_warning (G_STRLOC "Can't create GtkPlug as child of non-GtkSocket");
-		  priv->socket_window = NULL;
-		}
-	    }
-	  else
-	    g_object_ref (priv->socket_window);
-	}
-      else if (GDK_IS_X11_DISPLAY (display))
-        priv->socket_window = gdk_x11_window_foreign_new_for_display (display, socket_id);
-
-      if (priv->socket_window) {
-	g_signal_emit (plug, plug_signals[EMBEDDED], 0);
-
-        g_object_notify (G_OBJECT (plug), "embedded");
-      }
-    }
-}
-
-/**
- * gtk_plug_new:
- * @socket_id:  the window ID of the socket, or 0.
- * 
- * Creates a new plug widget inside the #GtkSocket identified
- * by @socket_id. If @socket_id is 0, the plug is left “unplugged” and
- * can later be plugged into a #GtkSocket by  gtk_socket_add_id().
- * 
- * Returns: the new #GtkPlug widget.
- **/
-GtkWidget*
-gtk_plug_new (Window socket_id)
-{
-  return gtk_plug_new_for_display (gdk_display_get_default (), socket_id);
-}
-
-/**
- * gtk_plug_new_for_display:
- * @display: the #GdkDisplay on which @socket_id is displayed
- * @socket_id: the XID of the socket’s window.
- * 
- * Create a new plug widget inside the #GtkSocket identified by socket_id.
- *
- * Returns: the new #GtkPlug widget.
- *
- * Since: 2.2
- */
-GtkWidget*
-gtk_plug_new_for_display (GdkDisplay *display,
-			  Window      socket_id)
-{
-  GtkPlug *plug;
-
-  g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
-
-  plug = g_object_new (GTK_TYPE_PLUG, NULL);
-  gtk_plug_construct_for_display (plug, display, socket_id);
-  return GTK_WIDGET (plug);
-}
-
-static void
-gtk_plug_finalize (GObject *object)
-{
-  GtkPlug *plug = GTK_PLUG (object);
-  GtkPlugPrivate *priv = plug->priv;
-
-  if (priv->grabbed_keys)
-    g_hash_table_destroy (priv->grabbed_keys);
-
-  G_OBJECT_CLASS (gtk_plug_parent_class)->finalize (object);
-}
-
-static void
-gtk_plug_unrealize (GtkWidget *widget)
-{
-  GtkPlug *plug = GTK_PLUG (widget);
-  GtkPlugPrivate *priv = plug->priv;
-
-  if (priv->socket_window != NULL)
-    {
-      g_object_unref (priv->socket_window);
-      priv->socket_window = NULL;
-
-      g_object_notify (G_OBJECT (widget), "embedded");
-    }
-
-  if (!priv->same_app)
-    {
-      if (priv->modality_window)
-	gtk_plug_handle_modality_off (plug);
-
-      gtk_window_group_remove_window (priv->modality_group, GTK_WINDOW (plug));
-      g_object_unref (priv->modality_group);
-    }
-
-  GTK_WIDGET_CLASS (gtk_plug_parent_class)->unrealize (widget);
-}
-
-static void
-xembed_set_info (GdkWindow     *window,
-		 unsigned long  flags)
-{
-  GdkDisplay *display = gdk_window_get_display (window);
-  unsigned long buffer[2];
-
-  Atom xembed_info_atom = gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED_INFO");
-
-  buffer[0] = GTK_XEMBED_PROTOCOL_VERSION;
-  buffer[1] = flags;
-
-  XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
-		   GDK_WINDOW_XID (window),
-		   xembed_info_atom, xembed_info_atom, 32,
-		   PropModeReplace,
-		   (unsigned char *)buffer, 2);
-}
-
-/**
- * gtk_plug_focus_first_last:
- * @plug: a #GtkPlug
- * @direction: a direction
- *
- * Called from the GtkPlug backend when the corresponding socket has
- * told the plug that it has received the focus.
- */
-static void
-gtk_plug_focus_first_last (GtkPlug          *plug,
-			   GtkDirectionType  direction)
-{
-  GtkWindow *window = GTK_WINDOW (plug);
-  GtkWidget *focus_widget;
-  GtkWidget *parent;
-
-  focus_widget = gtk_window_get_focus (window);
-  if (focus_widget)
-    {
-      parent = gtk_widget_get_parent (focus_widget);
-      while (parent)
-	{
-	  gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
-	  parent = gtk_widget_get_parent (parent);
-	}
-      
-      gtk_window_set_focus (GTK_WINDOW (plug), NULL);
-    }
-
-  gtk_widget_child_focus (GTK_WIDGET (plug), direction);
-}
-
-static void
-handle_xembed_message (GtkPlug           *plug,
-		       XEmbedMessageType  message,
-		       glong              detail,
-		       glong              data1,
-		       glong              data2,
-		       guint32            time)
-{
-  GtkWindow *window = GTK_WINDOW (plug);
-
-  GTK_NOTE (PLUGSOCKET,
-	    g_message ("GtkPlug: %s received", _gtk_xembed_message_name (message)));
-  
-  switch (message)
-    {
-    case XEMBED_EMBEDDED_NOTIFY:
-      break;
-    case XEMBED_WINDOW_ACTIVATE:
-      _gtk_window_set_is_active (window, TRUE);
-      break;
-    case XEMBED_WINDOW_DEACTIVATE:
-      _gtk_window_set_is_active (window, FALSE);
-      break;
-      
-    case XEMBED_MODALITY_ON:
-      gtk_plug_handle_modality_on (plug);
-      break;
-    case XEMBED_MODALITY_OFF:
-      gtk_plug_handle_modality_off (plug);
-      break;
-
-    case XEMBED_FOCUS_IN:
-      _gtk_window_set_has_toplevel_focus (window, TRUE);
-      switch (detail)
-	{
-	case XEMBED_FOCUS_FIRST:
-	  gtk_plug_focus_first_last (plug, GTK_DIR_TAB_FORWARD);
-	  break;
-	case XEMBED_FOCUS_LAST:
-	  gtk_plug_focus_first_last (plug, GTK_DIR_TAB_BACKWARD);
-	  break;
-	case XEMBED_FOCUS_CURRENT:
-	  break;
-	}
-      break;
-
-    case XEMBED_FOCUS_OUT:
-      _gtk_window_set_has_toplevel_focus (window, FALSE);
-      break;
-      
-    case XEMBED_GRAB_KEY:
-    case XEMBED_UNGRAB_KEY:
-    case XEMBED_GTK_GRAB_KEY:
-    case XEMBED_GTK_UNGRAB_KEY:
-    case XEMBED_REQUEST_FOCUS:
-    case XEMBED_FOCUS_NEXT:
-    case XEMBED_FOCUS_PREV:
-      g_warning ("GtkPlug: Invalid _XEMBED message %s received", _gtk_xembed_message_name (message));
-      break;
-      
-    default:
-      GTK_NOTE(PLUGSOCKET,
-	       g_message ("GtkPlug: Ignoring unknown _XEMBED message of type %d", message));
-      break;
-    }
-}
-static GdkFilterReturn
-gtk_plug_filter_func (GdkXEvent *gdk_xevent,
-		      GdkEvent  *event,
-		      gpointer   data)
-{
-  GdkScreen *screen = gdk_window_get_screen (event->any.window);
-  GdkDisplay *display = gdk_screen_get_display (screen);
-  GtkPlug *plug = GTK_PLUG (data);
-  GtkPlugPrivate *priv = plug->priv;
-  XEvent *xevent = (XEvent *)gdk_xevent;
-  GHashTableIter iter;
-  gpointer key;
-  GdkFilterReturn return_val;
-
-  return_val = GDK_FILTER_CONTINUE;
-
-  switch (xevent->type)
-    {
-    case ClientMessage:
-      if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED"))
-	{
-	  _gtk_xembed_push_message (xevent);
-	  handle_xembed_message (plug,
-				 xevent->xclient.data.l[1],
-				 xevent->xclient.data.l[2],
-				 xevent->xclient.data.l[3],
-				 xevent->xclient.data.l[4],
-				 xevent->xclient.data.l[0]);
-	  _gtk_xembed_pop_message ();
-
-	  return_val = GDK_FILTER_REMOVE;
-	}
-      else if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
-	{
-	  /* We filter these out because we take being reparented back to the
-	   * root window as the reliable end of the embedding protocol
-	   */
-
-	  return_val = GDK_FILTER_REMOVE;
-	}
-      break;
-    case ReparentNotify:
-      {
-	XReparentEvent *xre = &xevent->xreparent;
-        gboolean was_embedded = priv->socket_window != NULL;
-
-	GTK_NOTE (PLUGSOCKET, g_message("GtkPlug: ReparentNotify received"));
-
-	return_val = GDK_FILTER_REMOVE;
-	
-	g_object_ref (plug);
-	
-	if (was_embedded)
-	  {
-	    /* End of embedding protocol for previous socket */
-	    
-	    GTK_NOTE (PLUGSOCKET, g_message ("GtkPlug: end of embedding"));
-	    /* FIXME: race if we remove from another socket and
-	     * then add to a local window before we get notification
-	     * Probably need check in _gtk_plug_add_to_socket
-	     */
-
-            if (xre->parent != GDK_WINDOW_XID (priv->socket_window))
-	      {
-		GtkWidget *widget = GTK_WIDGET (plug);
-
-		g_object_unref (priv->socket_window);
-		priv->socket_window = NULL;
-
-		/* Emit a delete window, as if the user attempted
-		 * to close the toplevel. Simple as to how we
-		 * handle WM_DELETE_WINDOW, if it isn't handled
-		 * we destroy the widget. BUt only do this if
-		 * we are being reparented to the root window.
-		 * Moving from one embedder to another should
-		 * be invisible to the app.
-		 */
-
-		if (xre->parent == GDK_WINDOW_XID (gdk_screen_get_root_window (screen)))
-		  {
-		    GTK_NOTE (PLUGSOCKET, g_message ("GtkPlug: calling gtk_plug_send_delete_event()"));
-		    gtk_plug_send_delete_event (widget);
-
-		    g_object_notify (G_OBJECT (plug), "embedded");
-		  }
-	      }
-	    else
-	      goto done;
-	  }
-
-	if (xre->parent != GDK_WINDOW_XID (gdk_screen_get_root_window (screen)))
-	  {
-	    /* Start of embedding protocol */
-
-	    GTK_NOTE (PLUGSOCKET, g_message ("GtkPlug: start of embedding"));
-
-            priv->socket_window = gdk_x11_window_lookup_for_display (display, xre->parent);
-            if (priv->socket_window)
-	      {
-		gpointer user_data = NULL;
-		gdk_window_get_user_data (priv->socket_window, &user_data);
-
-		if (user_data)
-		  {
-		    g_warning (G_STRLOC "Plug reparented unexpectedly into window in the same process");
-                    priv->socket_window = NULL;
-		    break; /* FIXME: shouldn't this unref the plug? i.e. "goto done;" instead */
-		  }
-
-		g_object_ref (priv->socket_window);
-	      }
-	    else
-	      {
-		priv->socket_window = gdk_x11_window_foreign_new_for_display (display, xre->parent);
-		if (!priv->socket_window) /* Already gone */
-		  break; /* FIXME: shouldn't this unref the plug? i.e. "goto done;" instead */
-	      }
-
-            if (priv->grabbed_keys)
-              {
-                g_hash_table_iter_init (&iter, priv->grabbed_keys);
-                while (g_hash_table_iter_next (&iter, &key, NULL))
-                  {
-                    GrabbedKey *grabbed_key = key;
-
-                    _gtk_xembed_send_message (priv->socket_window, XEMBED_GTK_GRAB_KEY, 0,
-                                              grabbed_key->accelerator_key,
-                                              grabbed_key->accelerator_mods);
-                  }
-              }
-
-	    if (!was_embedded)
-	      g_signal_emit_by_name (plug, "embedded");
-
-	    g_object_notify (G_OBJECT (plug), "embedded");
-	  }
-
-      done:
-	g_object_unref (plug);
-	
-	break;
-      }
-    case KeyPress:
-    case KeyRelease:
-      {
-        GdkModifierType state, consumed;
-        GdkDevice *keyboard;
-        GdkKeymap *keymap;
-        GdkSeat *seat;
-
-        if (xevent->type == KeyPress)
-          event->key.type = GDK_KEY_PRESS;
-        else
-          event->key.type = GDK_KEY_RELEASE;
-
-        event->key.window = gdk_x11_window_lookup_for_display (display, xevent->xany.window);
-        event->key.send_event = TRUE;
-        event->key.time = xevent->xkey.time;
-        event->key.state = (GdkModifierType) xevent->xkey.state;
-        event->key.hardware_keycode = xevent->xkey.keycode;
-        event->key.keyval = GDK_KEY_VoidSymbol;
-
-        seat = gdk_display_get_default_seat (display);
-        keyboard = gdk_seat_get_keyboard (seat);
-        gdk_event_set_device (event, keyboard);
-
-        keymap = gdk_keymap_get_for_display (display);
-
-        event->key.group = gdk_x11_keymap_get_group_for_state (keymap, xevent->xkey.state);
-        event->key.is_modifier = gdk_x11_keymap_key_is_modifier (keymap, event->key.hardware_keycode);
-
-        gdk_keymap_translate_keyboard_state (keymap,
-                                             event->key.hardware_keycode,
-                                             event->key.state,
-                                             event->key.group,
-                                             &event->key.keyval,
-                                             NULL, NULL, &consumed);
-
-        state = event->key.state & ~consumed;
-        gdk_keymap_add_virtual_modifiers (keymap, &state);
-        event->key.state |= state;
-
-        event->key.length = 0;
-        event->key.string = g_strdup ("");
-
-        return_val = GDK_FILTER_TRANSLATE;
-      }
-    }
-
-  return return_val;
-}
-static void
-gtk_plug_realize (GtkWidget *widget)
-{
-  GtkAllocation allocation;
-  GtkPlug *plug = GTK_PLUG (widget);
-  GtkPlugPrivate *priv = plug->priv;
-  GtkWindow *window = GTK_WINDOW (widget);
-  GdkWindow *gdk_window;
-  GdkWindowAttr attributes;
-  const gchar *title;
-  gint attributes_mask;
-  GdkScreen *screen;
-
-  gtk_widget_set_realized (widget, TRUE);
-
-  screen = gtk_widget_get_screen (widget);
-  if (!GDK_IS_X11_SCREEN (screen))
-    g_warning ("GtkPlug only works under X11");
-
-  title = gtk_window_get_title (window);
-  gtk_widget_get_allocation (widget, &allocation);
-
-  attributes.window_type = GDK_WINDOW_CHILD;	/* XXX GDK_WINDOW_PLUG ? */
-  attributes.title = (gchar *) title;
-  attributes.width = allocation.width;
-  attributes.height = allocation.height;
-  attributes.wclass = GDK_INPUT_OUTPUT;
-
-  /* this isn't right - we should match our parent's visual/colormap.
-   * though that will require handling "foreign" colormaps */
-  attributes.visual = gtk_widget_get_visual (widget);
-  attributes.event_mask = gtk_widget_get_events (widget);
-  attributes.event_mask |= (GDK_EXPOSURE_MASK |
-			    GDK_KEY_PRESS_MASK |
-			    GDK_KEY_RELEASE_MASK |
-			    GDK_ENTER_NOTIFY_MASK |
-			    GDK_LEAVE_NOTIFY_MASK |
-			    GDK_STRUCTURE_MASK);
-
-  attributes_mask = GDK_WA_VISUAL;
-  attributes_mask |= (title ? GDK_WA_TITLE : 0);
-
-  if (gtk_widget_is_toplevel (widget))
-    {
-      GdkWindow *root_window;
-      attributes.window_type = GDK_WINDOW_TOPLEVEL;
-
-      root_window = gdk_screen_get_root_window (screen);
-
-      gdk_error_trap_push ();
-      if (priv->socket_window)
-        gdk_window = gdk_window_new (priv->socket_window,
-                                     &attributes, attributes_mask);
-      else /* If it's a passive plug, we use the root window */
-        gdk_window = gdk_window_new (root_window,
-                                     &attributes, attributes_mask);
-      /* Because the window isn't known to the window manager,
-       * frame sync won't work. In theory, XEMBED could be extended
-       * so that embedder did frame sync like a window manager, but
-       * it's just not worth the effort considering the current
-       * minimal use of XEMBED.
-       */
-      gdk_x11_window_set_frame_sync_enabled (gdk_window, FALSE);
-      gtk_widget_set_window (widget, gdk_window);
-
-      gdk_display_sync (gtk_widget_get_display (widget));
-      if (gdk_error_trap_pop ()) /* Uh-oh */
-	{
-	  gdk_error_trap_push ();
-	  gdk_window_destroy (gdk_window);
-	  gdk_error_trap_pop_ignored ();
-	  gdk_window = gdk_window_new (root_window,
-                                       &attributes, attributes_mask);
-          gtk_widget_set_window (widget, gdk_window);
-	}
-
-      gdk_window_add_filter (gdk_window,
-			     gtk_plug_filter_func,
-			     widget);
-
-      priv->modality_group = gtk_window_group_new ();
-      gtk_window_group_add_window (priv->modality_group, window);
-
-      xembed_set_info (gtk_widget_get_window (GTK_WIDGET (plug)), 0);
-    }
-  else
-    {
-      gdk_window = gdk_window_new (gtk_widget_get_parent_window (widget),
-                                   &attributes, attributes_mask);
-      gtk_widget_set_window (widget, gdk_window);
-    }
-
-  gtk_widget_register_window (widget, gdk_window);
-}
-
-static void
-gtk_plug_show (GtkWidget *widget)
-{
-  if (gtk_widget_is_toplevel (widget))
-    GTK_WIDGET_CLASS (gtk_plug_parent_class)->show (widget);
-  else
-    GTK_WIDGET_CLASS (bin_class)->show (widget);
-}
-
-static void
-gtk_plug_hide (GtkWidget *widget)
-{
-  if (gtk_widget_is_toplevel (widget))
-    GTK_WIDGET_CLASS (gtk_plug_parent_class)->hide (widget);
-  else
-    GTK_WIDGET_CLASS (bin_class)->hide (widget);
-}
-
-/* From gdkprivate.h */
-void gdk_synthesize_window_state (GdkWindow     *window,
-                                  GdkWindowState unset_flags,
-                                  GdkWindowState set_flags);
-
-static void
-gtk_plug_map (GtkWidget *widget)
-{
-  if (gtk_widget_is_toplevel (widget))
-    {
-      GtkBin *bin = GTK_BIN (widget);
-      GtkPlug *plug = GTK_PLUG (widget);
-      GtkWidget *child;
-
-      gtk_widget_set_mapped (widget, TRUE);
-
-      child = gtk_bin_get_child (bin);
-      if (child != NULL &&
-          gtk_widget_get_visible (child) &&
-          !gtk_widget_get_mapped (child))
-        gtk_widget_map (child);
-
-      xembed_set_info (gtk_widget_get_window (GTK_WIDGET (plug)), XEMBED_MAPPED);
-
-      gdk_synthesize_window_state (gtk_widget_get_window (widget),
-				   GDK_WINDOW_STATE_WITHDRAWN,
-				   0);
-    }
-  else
-    GTK_WIDGET_CLASS (bin_class)->map (widget);
-}
-
-static void
-gtk_plug_unmap (GtkWidget *widget)
-{
-  if (gtk_widget_is_toplevel (widget))
-    {
-      GtkPlug *plug = GTK_PLUG (widget);
-      GdkWindow *window;
-      GtkWidget *child;
-
-      window = gtk_widget_get_window (widget);
-
-      gtk_widget_set_mapped (widget, FALSE);
-
-      gdk_window_hide (window);
-
-      child = gtk_bin_get_child (GTK_BIN (widget));
-      if (child != NULL)
-        gtk_widget_unmap (child);
-
-      xembed_set_info (gtk_widget_get_window (GTK_WIDGET (plug)), 0);
-
-      gdk_synthesize_window_state (window,
-				   0,
-				   GDK_WINDOW_STATE_WITHDRAWN);
-    }
-  else
-    GTK_WIDGET_CLASS (bin_class)->unmap (widget);
-}
-
-static gboolean
-gtk_plug_key_press_event (GtkWidget   *widget,
-			  GdkEventKey *event)
-{
-  if (gtk_widget_is_toplevel (widget))
-    return GTK_WIDGET_CLASS (gtk_plug_parent_class)->key_press_event (widget, event);
-  else
-    return FALSE;
-}
-
-static gboolean
-gtk_plug_focus_event (GtkWidget      *widget,
-		      GdkEventFocus  *event)
-{
-  /* We eat focus-in events and focus-out events, since they
-   * can be generated by something like a keyboard grab on
-   * a child of the plug.
-   */
-  return FALSE;
-}
-
-static void
-gtk_plug_set_focus (GtkWindow *window,
-		    GtkWidget *focus)
-{
-  GtkPlug *plug = GTK_PLUG (window);
-  GtkPlugPrivate *priv = plug->priv;
-
-  GTK_WINDOW_CLASS (gtk_plug_parent_class)->set_focus (window, focus);
-  
-  /* Ask for focus from embedder
-   */
-
-  if (focus && !gtk_window_has_toplevel_focus (window))
-    _gtk_xembed_send_message (priv->socket_window,
-                              XEMBED_REQUEST_FOCUS, 0, 0, 0);
-}
-
-static guint
-grabbed_key_hash (gconstpointer a)
-{
-  const GrabbedKey *key = a;
-  guint h;
-  
-  h = key->accelerator_key << 16;
-  h ^= key->accelerator_key >> 16;
-  h ^= key->accelerator_mods;
-
-  return h;
-}
-
-static gboolean
-grabbed_key_equal (gconstpointer a, gconstpointer b)
-{
-  const GrabbedKey *keya = a;
-  const GrabbedKey *keyb = b;
-
-  return (keya->accelerator_key == keyb->accelerator_key &&
-	  keya->accelerator_mods == keyb->accelerator_mods);
-}
-
-static void
-add_grabbed_key (gpointer key, gpointer val, gpointer data)
-{
-  GrabbedKey *grabbed_key = key;
-  GtkPlug *plug = data;
-  GtkPlugPrivate *priv = plug->priv;
-
-  if (!priv->grabbed_keys ||
-      !g_hash_table_lookup (priv->grabbed_keys, grabbed_key))
-    {
-      _gtk_xembed_send_message (priv->socket_window, XEMBED_GTK_GRAB_KEY, 0,
-                                grabbed_key->accelerator_key,
-                                grabbed_key->accelerator_mods);
-    }
-}
-
-static void
-remove_grabbed_key (gpointer key, gpointer val, gpointer data)
-{
-  GrabbedKey *grabbed_key = key;
-  GtkPlug *plug = data;
-  GtkPlugPrivate *priv = plug->priv;
-
-  if (!priv->grabbed_keys ||
-      !g_hash_table_lookup (priv->grabbed_keys, grabbed_key))
-    {
-      _gtk_xembed_send_message (priv->socket_window, XEMBED_GTK_UNGRAB_KEY, 0,
-                                grabbed_key->accelerator_key,
-                                grabbed_key->accelerator_mods);
-    }
-}
-
-static void
-keys_foreach (GtkWindow      *window,
-	      guint           keyval,
-	      GdkModifierType modifiers,
-	      gboolean        is_mnemonic,
-	      gpointer        data)
-{
-  GHashTable *new_grabbed_keys = data;
-  GrabbedKey *key = g_slice_new (GrabbedKey);
-
-  key->accelerator_key = keyval;
-  key->accelerator_mods = modifiers;
-  
-  g_hash_table_replace (new_grabbed_keys, key, key);
-}
-
-static void
-grabbed_key_free (gpointer data)
-{
-  g_slice_free (GrabbedKey, data);
-}
-
-static void
-gtk_plug_keys_changed (GtkWindow *window)
-{
-  GHashTable *new_grabbed_keys, *old_grabbed_keys;
-  GtkPlug *plug = GTK_PLUG (window);
-  GtkPlugPrivate *priv = plug->priv;
-
-  new_grabbed_keys = g_hash_table_new_full (grabbed_key_hash, grabbed_key_equal, (GDestroyNotify)grabbed_key_free, NULL);
-  _gtk_window_keys_foreach (window, keys_foreach, new_grabbed_keys);
-
-  if (priv->socket_window)
-    g_hash_table_foreach (new_grabbed_keys, add_grabbed_key, plug);
-
-  old_grabbed_keys = priv->grabbed_keys;
-  priv->grabbed_keys = new_grabbed_keys;
-
-  if (old_grabbed_keys)
-    {
-      if (priv->socket_window)
-        g_hash_table_foreach (old_grabbed_keys, remove_grabbed_key, plug);
-      g_hash_table_destroy (old_grabbed_keys);
-    }
-}
-
-static void
-gtk_plug_focus_to_parent (GtkPlug         *plug,
-			  GtkDirectionType direction)
-{
-  GtkPlugPrivate *priv = plug->priv;
-  XEmbedMessageType message;
-  
-  switch (direction)
-    {
-    case GTK_DIR_UP:
-    case GTK_DIR_LEFT:
-    case GTK_DIR_TAB_BACKWARD:
-      message = XEMBED_FOCUS_PREV;
-      break;
-    case GTK_DIR_DOWN:
-    case GTK_DIR_RIGHT:
-    case GTK_DIR_TAB_FORWARD:
-      message = XEMBED_FOCUS_NEXT;
-      break;
-    default:
-      g_assert_not_reached ();
-      message = XEMBED_FOCUS_PREV;
-      break;
-    }
-
-  _gtk_xembed_send_focus_message (priv->socket_window, message, 0);
-}
-
-static gboolean
-gtk_plug_focus (GtkWidget        *widget,
-		GtkDirectionType  direction)
-{
-  GtkBin *bin = GTK_BIN (widget);
-  GtkPlug *plug = GTK_PLUG (widget);
-  GtkWindow *window = GTK_WINDOW (widget);
-  GtkContainer *container = GTK_CONTAINER (widget);
-  GtkWidget *child;
-  GtkWidget *old_focus_child;
-  GtkWidget *parent;
-
-  old_focus_child = gtk_container_get_focus_child (container);
-  /* We override GtkWindow's behavior, since we don't want wrapping here.
-   */
-  if (old_focus_child)
-    {
-      GtkWidget *focus_widget;
-
-      if (gtk_widget_child_focus (old_focus_child, direction))
-	return TRUE;
-
-      focus_widget = gtk_window_get_focus (window);
-      if (focus_widget)
-	{
-	  /* Wrapped off the end, clear the focus setting for the toplevel */
-	  parent = gtk_widget_get_parent (focus_widget);
-	  while (parent)
-	    {
-	      gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
-	      parent = gtk_widget_get_parent (parent);
-	    }
-	  
-	  gtk_window_set_focus (GTK_WINDOW (container), NULL);
-	}
-    }
-  else
-    {
-      /* Try to focus the first widget in the window */
-      child = gtk_bin_get_child (bin);
-      if (child && gtk_widget_child_focus (child, direction))
-        return TRUE;
-    }
-
-  if (!gtk_container_get_focus_child (GTK_CONTAINER (window)))
-    gtk_plug_focus_to_parent (plug, direction);
-
-  return FALSE;
-}
-
-static void
-gtk_plug_check_resize (GtkContainer *container)
-{
-  if (gtk_widget_is_toplevel (GTK_WIDGET (container)))
-    GTK_CONTAINER_CLASS (gtk_plug_parent_class)->check_resize (container);
-  else
-    GTK_CONTAINER_CLASS (bin_class)->check_resize (container);
-}
-