--- /dev/null
+/* 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, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* 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 <gtk/gtk.h>
+#include "gtkplugxembed.h"
+#include <gtk/gtkprivate.h>
+
+#include <gdk/gdkkeysyms.h>
+#include <gdk/gdkx.h>
+
+#include "xembed.h"
+#include "gtk2-funcs.h"
+
+static void gtk_plug_xembed_class_init (GtkPlugXEmbedClass *klass);
+static void gtk_plug_xembed_init (GtkPlugXEmbed *plug);
+static void gtk_plug_xembed_finalize (GtkObject *object);
+static void gtk_plug_xembed_realize (GtkWidget *widget);
+static void gtk_plug_xembed_unrealize (GtkWidget *widget);
+static void gtk_plug_xembed_show (GtkWidget *widget);
+static void gtk_plug_xembed_hide (GtkWidget *widget);
+static void gtk_plug_xembed_map (GtkWidget *widget);
+static void gtk_plug_xembed_unmap (GtkWidget *widget);
+static void gtk_plug_xembed_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void gtk_plug_xembed_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static gboolean gtk_plug_xembed_key_press_event (GtkWidget *widget,
+ GdkEventKey *event);
+static gboolean gtk_plug_xembed_focus_event (GtkWidget *widget,
+ GdkEventFocus *event);
+static void gtk_plug_xembed_set_focus (GtkWindow *window,
+ GtkWidget *focus);
+#ifdef PORT_COMPLETE
+static gboolean gtk_plug_xembed_focus (GtkWidget *widget,
+ GtkDirectionType direction);
+#endif
+static void gtk_plug_xembed_check_resize (GtkContainer *container);
+#ifdef PORT_COMPLETE
+static void gtk_plug_xembed_keys_changed (GtkWindow *window);
+#endif
+static GdkFilterReturn gtk_plug_xembed_filter_func (GdkXEvent *gdk_xevent,
+ GdkEvent *event,
+ gpointer data);
+
+static void handle_modality_off (GtkPlugXEmbed *plug);
+static void send_xembed_message (GtkPlugXEmbed *plug,
+ glong message,
+ glong detail,
+ glong data1,
+ glong data2,
+ guint32 time);
+static void xembed_set_info (GdkWindow *window,
+ unsigned long flags);
+
+
+/* From Tk */
+#define EMBEDDED_APP_WANTS_FOCUS NotifyNormal+20
+
+static GtkWindowClass *parent_class = NULL;
+static GtkBinClass *bin_class = NULL;
+
+enum {
+ EMBEDDED,
+ LAST_SIGNAL
+};
+
+static guint plug_signals[LAST_SIGNAL] = { 0 };
+
+GtkType
+gtk_plug_xembed_get_type ()
+{
+ static GtkType plug_type = 0;
+
+ if (!plug_type)
+ {
+ static const GtkTypeInfo plug_info =
+ {
+ "GtkPlugXEmbed",
+ sizeof (GtkPlugXEmbed),
+ sizeof (GtkPlugXEmbedClass),
+ (GtkClassInitFunc) gtk_plug_xembed_class_init,
+ (GtkObjectInitFunc) gtk_plug_xembed_init,
+ NULL,
+ NULL,
+ NULL
+ };
+
+ plug_type = gtk_type_unique (GTK_TYPE_WINDOW, &plug_info);
+ }
+
+ return plug_type;
+}
+
+static void
+gtk_plug_xembed_class_init (GtkPlugXEmbedClass *class)
+{
+ GtkObjectClass *gtk_object_class = (GtkObjectClass *)class;
+ GtkWidgetClass *widget_class = (GtkWidgetClass *)class;
+ GtkWindowClass *window_class = (GtkWindowClass *)class;
+ GtkContainerClass *container_class = (GtkContainerClass *)class;
+
+ parent_class = gtk_type_class (GTK_TYPE_WINDOW);
+ bin_class = gtk_type_class (GTK_TYPE_BIN);
+
+ gtk_object_class->finalize = gtk_plug_xembed_finalize;
+
+ widget_class->realize = gtk_plug_xembed_realize;
+ widget_class->unrealize = gtk_plug_xembed_unrealize;
+ widget_class->key_press_event = gtk_plug_xembed_key_press_event;
+ widget_class->focus_in_event = gtk_plug_xembed_focus_event;
+ widget_class->focus_out_event = gtk_plug_xembed_focus_event;
+
+ widget_class->show = gtk_plug_xembed_show;
+ widget_class->hide = gtk_plug_xembed_hide;
+ widget_class->map = gtk_plug_xembed_map;
+ widget_class->unmap = gtk_plug_xembed_unmap;
+ widget_class->size_allocate = gtk_plug_xembed_size_allocate;
+ widget_class->size_request = gtk_plug_xembed_size_request;
+
+#ifdef PORT_COMPLETE
+ widget_class->focus = gtk_plug_xembed_focus;
+#endif
+
+ container_class->check_resize = gtk_plug_xembed_check_resize;
+
+ window_class->set_focus = gtk_plug_xembed_set_focus;
+#ifdef PORT_COMPLETE
+ window_class->keys_changed = gtk_plug_xembed_keys_changed;
+#endif
+
+ plug_signals[EMBEDDED] =
+ gtk_signal_new ("embedded",
+ GTK_RUN_LAST,
+ GTK_OBJECT_CLASS (class)->type,
+ GTK_STRUCT_OFFSET (GtkPlugXEmbedClass, embedded),
+ gtk_marshal_NONE__NONE,
+ GTK_TYPE_NONE, 0);
+}
+
+static void
+gtk_plug_xembed_init (GtkPlugXEmbed *plug)
+{
+ GtkWindow *window;
+
+ window = GTK_WINDOW (plug);
+
+ window->type = GTK_WINDOW_TOPLEVEL;
+}
+
+#ifdef PORT_COMPLETE
+static void
+gtk_plug_xembed_set_is_child (GtkPlugXEmbed *plug,
+ gboolean is_child)
+{
+ g_assert (!GTK_WIDGET (plug)->parent);
+
+ if (is_child)
+ {
+#if PORT_COMPLETE
+ if (plug->modality_window)
+ handle_modality_off (plug);
+
+ if (plug->modality_group)
+ {
+ gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
+ gtk_object_unref (plug->modality_group);
+ plug->modality_group = NULL;
+ }
+#endif
+
+ /* 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_MAPPED (plug))
+ gtk_widget_unmap (GTK_WIDGET (plug));
+
+ GTK_WIDGET_UNSET_FLAGS (plug, GTK_TOPLEVEL);
+ gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_PARENT);
+
+#ifdef PORT_COMPLETE
+ _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), GTK_WIDGET (plug));
+#endif
+ }
+ else
+ {
+ if (GTK_WINDOW (plug)->focus_widget)
+ gtk_window_set_focus (GTK_WINDOW (plug), NULL);
+ if (GTK_WINDOW (plug)->default_widget)
+ gtk_window_set_default (GTK_WINDOW (plug), NULL);
+
+#ifdef PORT_COMPLETE
+ plug->modality_group = gtk_window_group_new ();
+ gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug));
+#endif
+
+ GTK_WIDGET_SET_FLAGS (plug, GTK_TOPLEVEL);
+ gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_QUEUE);
+
+#ifdef PORT_COMPLETE
+ _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), NULL);
+#endif
+ }
+}
+#endif
+
+/**
+ * _gtk_plug_xembed_add_to_socket:
+ * @plug: a #GtkPlugXEmbed
+ * @socket: a #GtkSocket
+ *
+ * Adds a plug to a socket within the same application.
+ **/
+void
+_gtk_plug_xembed_add_to_socket (GtkPlugXEmbed *plug,
+ GtkSocket *socket)
+{
+#ifdef PORT_COMPLETE /* Only foreign sockets for now */
+ GtkWidget *widget;
+ gint w, h;
+
+ g_return_if_fail (GTK_IS_PLUG_XEMBED (plug));
+ g_return_if_fail (GTK_IS_SOCKET (socket));
+ g_return_if_fail (GTK_WIDGET_REALIZED (socket));
+
+ widget = GTK_WIDGET (plug);
+
+ gtk_plug_xembed_set_is_child (plug, TRUE);
+ plug->same_app = TRUE;
+ socket->same_app = TRUE;
+ socket->plug_widget = widget;
+
+ plug->socket_window = GTK_WIDGET (socket)->window;
+
+ if (GTK_WIDGET_REALIZED (widget))
+ {
+ gdk_drawable_get_size (GDK_DRAWABLE (widget->window), &w, &h);
+ gdk_window_reparent (widget->window, plug->socket_window, -w, -h);
+ }
+
+ gtk_widget_set_parent (widget, GTK_WIDGET (socket));
+
+ g_signal_emit_by_name (G_OBJECT (socket), "plug_added", 0);
+#endif
+}
+
+/**
+ * _gtk_plug_xembed_remove_from_socket:
+ * @plug: a #GtkPlugXEmbed
+ * @socket: a #GtkSocket
+ *
+ * Removes a plug from a socket within the same application.
+ **/
+void
+_gtk_plug_xembed_remove_from_socket (GtkPlugXEmbed *plug,
+ GtkSocket *socket)
+{
+#ifdef PORT_COMPLETE /* Only foreign sockets for now */
+ GtkWidget *widget;
+ GdkEvent event;
+ gboolean result;
+ gboolean widget_was_visible;
+
+ g_return_if_fail (GTK_IS_PLUG_XEMBED (plug));
+ g_return_if_fail (GTK_IS_SOCKET (socket));
+ g_return_if_fail (GTK_WIDGET_REALIZED (plug));
+
+ widget = GTK_WIDGET (plug);
+
+ gtk_object_ref (plug);
+ gtk_object_ref (socket);
+
+ widget_was_visible = GTK_WIDGET_VISIBLE (plug);
+
+ gdk_window_hide (widget->window);
+ gdk_window_reparent (widget->window, GDK_ROOT_PARENT (), 0, 0);
+
+ GTK_PRIVATE_SET_FLAG (plug, GTK_IN_REPARENT);
+ gtk_widget_unparent (GTK_WIDGET (plug));
+ GTK_PRIVATE_UNSET_FLAG (plug, GTK_IN_REPARENT);
+
+ socket->plug_widget = NULL;
+ gdk_window_unref (socket->plug_window);
+ socket->plug_window = NULL;
+
+ socket->same_app = FALSE;
+
+ plug->same_app = FALSE;
+ plug->socket_window = NULL;
+
+ gtk_plug_xembed_set_is_child (plug, FALSE);
+
+ g_signal_emit_by_name (G_OBJECT (socket), "plug_removed", &result);
+ if (!result)
+ gtk_widget_destroy (GTK_WIDGET (socket));
+
+ event.any.type = GDK_DELETE;
+ event.any.window = gdk_window_ref (widget->window);
+ event.any.send_event = FALSE;
+
+ if (!gtk_widget_event (widget, &event))
+ gtk_widget_destroy (widget);
+
+ gdk_window_unref (event.any.window);
+ gtk_object_unref (plug);
+
+ if (widget_was_visible && GTK_WIDGET_VISIBLE (socket))
+ gtk_widget_queue_resize (GTK_WIDGET (socket));
+
+ gtk_object_unref (socket);
+#endif
+}
+
+void
+gtk_plug_xembed_construct (GtkPlugXEmbed *plug,
+ GtkPlugXEmbedNativeWindow socket_id)
+{
+ if (socket_id)
+ {
+#ifdef PORT_COMPLETE /* Only foreign windows for now */
+ gpointer user_data = NULL;
+
+ plug->socket_window = gdk_window_lookup (socket_id);
+
+ if (plug->socket_window)
+ gdk_window_get_user_data (plug->socket_window, &user_data);
+ else
+ plug->socket_window = gdk_window_foreign_new (socket_id);
+
+ if (user_data)
+ {
+ if (GTK_IS_SOCKET (user_data))
+ _gtk_plug_xembed_add_to_socket (plug, user_data);
+ else
+ {
+ g_warning (/*G_STRLOC*/ "Can't create GtkPlugXEmbed as child of non-GtkSocket");
+ plug->socket_window = NULL;
+ }
+ }
+
+ if (plug->socket_window)
+ g_signal_emit (G_OBJECT (plug), plug_signals[EMBEDDED], 0);
+#else
+ plug->socket_window = gdk_window_foreign_new (socket_id);
+#endif
+
+ }
+}
+
+GtkWidget*
+gtk_plug_xembed_new (GtkPlugXEmbedNativeWindow socket_id)
+{
+ GtkPlugXEmbed *plug;
+
+ plug = GTK_PLUG_XEMBED (gtk_type_new (GTK_TYPE_PLUG_XEMBED));
+ gtk_plug_xembed_construct (plug, socket_id);
+ return GTK_WIDGET (plug);
+}
+
+/**
+ * gtk_plug_xembed_get_id:
+ * @plug: a #GtkPlugXEmbed.
+ *
+ * Gets the window ID of a #GtkPlugXEmbed widget, which can then
+ * be used to embed this window inside another window, for
+ * instance with gtk_socket_add_id().
+ *
+ * Return value: the window ID for the plug
+ **/
+GtkPlugXEmbedNativeWindow
+gtk_plug_xembed_get_id (GtkPlugXEmbed *plug)
+{
+ g_return_val_if_fail (GTK_IS_PLUG_XEMBED (plug), 0);
+
+ if (!GTK_WIDGET_REALIZED (plug))
+ gtk_widget_realize (GTK_WIDGET (plug));
+
+ return GDK_WINDOW_XWINDOW (GTK_WIDGET (plug)->window);
+}
+
+static void
+gtk_plug_xembed_finalize (GtkObject *object)
+{
+ GtkPlugXEmbed *plug = GTK_PLUG_XEMBED (object);
+
+ if (plug->grabbed_keys)
+ {
+ g_hash_table_destroy (plug->grabbed_keys);
+ plug->grabbed_keys = NULL;
+ }
+
+ GTK_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gtk_plug_xembed_unrealize (GtkWidget *widget)
+{
+ GtkPlugXEmbed *plug;
+
+ g_return_if_fail (GTK_IS_PLUG_XEMBED (widget));
+
+ plug = GTK_PLUG_XEMBED (widget);
+
+ if (plug->socket_window != NULL)
+ {
+ gdk_window_set_user_data (plug->socket_window, NULL);
+ gdk_window_unref (plug->socket_window);
+ plug->socket_window = NULL;
+ }
+
+#ifdef PORT_COMPLETE
+ if (!plug->same_app)
+ {
+ if (plug->modality_window)
+ handle_modality_off (plug);
+
+ gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
+ gtk_object_unref (plug->modality_group);
+ }
+#endif
+
+ if (GTK_WIDGET_CLASS (parent_class)->unrealize)
+ (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+}
+
+static void
+gtk_plug_xembed_realize (GtkWidget *widget)
+{
+ GtkWindow *window;
+ GtkPlugXEmbed *plug;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ g_return_if_fail (GTK_IS_PLUG_XEMBED (widget));
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+ window = GTK_WINDOW (widget);
+ plug = GTK_PLUG_XEMBED (widget);
+
+ attributes.window_type = GDK_WINDOW_CHILD; /* XXX GDK_WINDOW_PLUG ? */
+ attributes.title = window->title;
+ attributes.wmclass_name = window->wmclass_name;
+ attributes.wmclass_class = window->wmclass_class;
+ attributes.width = widget->allocation.width;
+ attributes.height = widget->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.colormap = gtk_widget_get_colormap (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_FOCUS_CHANGE_MASK |
+ GDK_STRUCTURE_MASK);
+
+ attributes_mask = GDK_WA_VISUAL | GDK_WA_COLORMAP;
+ attributes_mask |= (window->title ? GDK_WA_TITLE : 0);
+ attributes_mask |= (window->wmclass_name ? GDK_WA_WMCLASS : 0);
+
+ if (GTK_WIDGET_TOPLEVEL (widget))
+ {
+ attributes.window_type = GDK_WINDOW_TOPLEVEL;
+
+ gdk_error_trap_push ();
+ widget->window = gdk_window_new (plug->socket_window,
+ &attributes, attributes_mask);
+ gdk_flush ();
+ if (gdk_error_trap_pop ()) /* Uh-oh */
+ {
+ gdk_error_trap_push ();
+ gdk_window_destroy (widget->window);
+ gdk_flush ();
+ gdk_error_trap_pop ();
+ widget->window = gdk_window_new (NULL, &attributes, attributes_mask);
+ }
+
+ gdk_window_add_filter (widget->window, gtk_plug_xembed_filter_func, widget);
+
+#ifdef PORT_COMPLETE
+ plug->modality_group = gtk_window_group_new ();
+ gtk_window_group_add_window (plug->modality_group, window);
+#endif
+
+ xembed_set_info (widget->window, 0);
+ }
+ else
+ widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
+
+ gdk_window_set_user_data (widget->window, window);
+
+ widget->style = gtk_style_attach (widget->style, widget->window);
+ gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+}
+
+static void
+gtk_plug_xembed_show (GtkWidget *widget)
+{
+ if (GTK_WIDGET_TOPLEVEL (widget))
+ GTK_WIDGET_CLASS (parent_class)->show (widget);
+ else
+ GTK_WIDGET_CLASS (bin_class)->show (widget);
+}
+
+static void
+gtk_plug_xembed_hide (GtkWidget *widget)
+{
+ if (GTK_WIDGET_TOPLEVEL (widget))
+ GTK_WIDGET_CLASS (parent_class)->hide (widget);
+ else
+ GTK_WIDGET_CLASS (bin_class)->hide (widget);
+}
+
+static void
+gtk_plug_xembed_map (GtkWidget *widget)
+{
+ if (GTK_WIDGET_TOPLEVEL (widget)) {
+ GtkBin *bin = GTK_BIN (widget);
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+
+ if (bin->child &&
+ GTK_WIDGET_VISIBLE (bin->child) &&
+ !GTK_WIDGET_MAPPED (bin->child))
+ gtk_widget_map (bin->child);
+ xembed_set_info (widget->window, XEMBED_MAPPED);
+ if (!GTK_WIDGET_NO_WINDOW (widget))
+ gdk_window_show (widget->window);
+
+#ifdef PORT_COMPLETE
+ gdk_synthesize_window_state (widget->window,
+ GDK_WINDOW_STATE_WITHDRAWN,
+ 0);
+#endif
+ } else {
+ GTK_WIDGET_CLASS (bin_class)->map (widget);
+ }
+}
+
+static void
+gtk_plug_xembed_unmap (GtkWidget *widget)
+{
+ if (GTK_WIDGET_TOPLEVEL (widget))
+ {
+ GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+
+ gdk_window_hide (widget->window);
+ xembed_set_info (widget->window, 0);
+
+#ifdef PORT_COMPLETE
+ gdk_synthesize_window_state (widget->window,
+ 0,
+ GDK_WINDOW_STATE_WITHDRAWN);
+#endif
+ }
+ else
+ GTK_WIDGET_CLASS (bin_class)->unmap (widget);
+}
+
+static void
+gtk_plug_xembed_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ requisition->width = 22;
+ requisition->height = 22;
+}
+
+static void
+gtk_plug_xembed_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ if (GTK_WIDGET_TOPLEVEL (widget))
+ GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
+ else
+ {
+ GtkBin *bin = GTK_BIN (widget);
+
+ widget->allocation = *allocation;
+
+ if (GTK_WIDGET_REALIZED (widget))
+ gdk_window_move_resize (widget->window,
+ allocation->x, allocation->y,
+ allocation->width, allocation->height);
+
+ if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
+ {
+ GtkAllocation child_allocation;
+
+ child_allocation.x = child_allocation.y = GTK_CONTAINER (widget)->border_width;
+ child_allocation.width =
+ MAX (1, (gint)allocation->width - child_allocation.x * 2);
+ child_allocation.height =
+ MAX (1, (gint)allocation->height - child_allocation.y * 2);
+
+ gtk_widget_size_allocate (bin->child, &child_allocation);
+ }
+
+ }
+}
+
+static gboolean
+gtk_plug_xembed_key_press_event (GtkWidget *widget,
+ GdkEventKey *event)
+{
+ if (GTK_WIDGET_TOPLEVEL (widget))
+ return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event);
+ else
+ return FALSE;
+}
+
+static gboolean
+gtk_plug_xembed_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_xembed_set_focus (GtkWindow *window,
+ GtkWidget *focus)
+{
+ GtkPlugXEmbed *plug = GTK_PLUG_XEMBED (window);
+
+ GTK_WINDOW_CLASS (parent_class)->set_focus (window, focus);
+
+ /* Ask for focus from embedder
+ */
+
+ if (focus && !window->window_has_focus)
+ {
+ send_xembed_message (plug, XEMBED_REQUEST_FOCUS, 0, 0, 0,
+ gtk2_get_current_event_time ());
+ }
+}
+
+#ifdef PORT_COMPLETE
+typedef struct
+{
+ guint accelerator_key;
+ GdkModifierType accelerator_mods;
+} GrabbedKey;
+
+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;
+ GtkPlugXEmbed *plug = data;
+
+ if (!plug->grabbed_keys ||
+ !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
+ {
+ send_xembed_message (plug, XEMBED_GTK_GRAB_KEY, 0,
+ grabbed_key->accelerator_key, grabbed_key->accelerator_mods,
+ gtk_get_current_event_time ());
+ }
+}
+
+static void
+add_grabbed_key_always (gpointer key, gpointer val, gpointer data)
+{
+ GrabbedKey *grabbed_key = key;
+ GtkPlugXEmbed *plug = data;
+
+ send_xembed_message (plug, XEMBED_GTK_GRAB_KEY, 0,
+ grabbed_key->accelerator_key, grabbed_key->accelerator_mods,
+ gtk_get_current_event_time ());
+}
+
+static void
+remove_grabbed_key (gpointer key, gpointer val, gpointer data)
+{
+ GrabbedKey *grabbed_key = key;
+ GtkPlugXEmbed *plug = data;
+
+ if (!plug->grabbed_keys ||
+ !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
+ {
+ send_xembed_message (plug, XEMBED_GTK_UNGRAB_KEY, 0,
+ grabbed_key->accelerator_key, grabbed_key->accelerator_mods,
+ gtk_get_current_event_time ());
+ }
+}
+
+static void
+keys_foreach (GtkWindow *window,
+ guint keyval,
+ GdkModifierType modifiers,
+ gboolean is_mnemonic,
+ gpointer data)
+{
+ GHashTable *new_grabbed_keys = data;
+ GrabbedKey *key = g_new (GrabbedKey, 1);
+
+ key->accelerator_key = keyval;
+ key->accelerator_mods = modifiers;
+
+ g_hash_table_replace (new_grabbed_keys, key, key);
+}
+
+#ifdef PORT_COMPLETE
+static void
+gtk_plug_xembed_keys_changed (GtkWindow *window)
+{
+ GHashTable *new_grabbed_keys, *old_grabbed_keys;
+ GtkPlugXEmbed *plug = GTK_PLUG_XEMBED (window);
+
+ new_grabbed_keys = g_hash_table_new_full (grabbed_key_hash, grabbed_key_equal, (GDestroyNotify)g_free, NULL);
+ _gtk_window_keys_foreach (window, keys_foreach, new_grabbed_keys);
+
+ if (plug->socket_window)
+ g_hash_table_foreach (new_grabbed_keys, add_grabbed_key, plug);
+
+ old_grabbed_keys = plug->grabbed_keys;
+ plug->grabbed_keys = new_grabbed_keys;
+
+ if (old_grabbed_keys)
+ {
+ if (plug->socket_window)
+ g_hash_table_foreach (old_grabbed_keys, remove_grabbed_key, plug);
+ g_hash_table_destroy (old_grabbed_keys);
+ }
+}
+#endif
+#endif
+
+#ifdef PORT_COMPLETE
+static gboolean
+gtk_plug_xembed_focus (GtkWidget *widget,
+ GtkDirectionType direction)
+{
+ GtkBin *bin = GTK_BIN (widget);
+ GtkPlugXEmbed *plug = GTK_PLUG_XEMBED (widget);
+ GtkWindow *window = GTK_WINDOW (widget);
+ GtkContainer *container = GTK_CONTAINER (widget);
+ GtkWidget *old_focus_child = container->focus_child;
+ GtkWidget *parent;
+
+ /* We override GtkWindow's behavior, since we don't want wrapping here.
+ */
+ if (old_focus_child)
+ {
+ if (gtk_widget_child_focus (old_focus_child, direction))
+ return TRUE;
+
+ if (window->focus_widget)
+ {
+ /* Wrapped off the end, clear the focus setting for the toplevel */
+ parent = window->focus_widget->parent;
+ while (parent)
+ {
+ gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
+ parent = GTK_WIDGET (parent)->parent;
+ }
+
+ gtk_window_set_focus (GTK_WINDOW (container), NULL);
+
+ if (!GTK_CONTAINER (window)->focus_child)
+ {
+ gint message = -1;
+
+ 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;
+ }
+
+ send_xembed_message (plug, message, 0, 0, 0,
+ gtk_get_current_event_time ());
+ }
+ }
+
+ return FALSE;
+ }
+ else
+ {
+ /* Try to focus the first widget in the window */
+
+ if (bin->child && gtk_widget_child_focus (bin->child, direction))
+ return TRUE;
+ }
+
+ return FALSE;
+}
+#endif
+
+static void
+gtk_plug_xembed_check_resize (GtkContainer *container)
+{
+ if (GTK_WIDGET_TOPLEVEL (container))
+ GTK_CONTAINER_CLASS (parent_class)->check_resize (container);
+ else
+ GTK_CONTAINER_CLASS (bin_class)->check_resize (container);
+}
+
+static void
+send_xembed_message (GtkPlugXEmbed *plug,
+ glong message,
+ glong detail,
+ glong data1,
+ glong data2,
+ guint32 time)
+{
+ if (plug->socket_window)
+ {
+ XEvent xevent;
+
+ GTK_NOTE(PLUGSOCKET,
+ g_message ("GtkPlugXEmbed: Sending XEMBED message of type %ld", message));
+
+ xevent.xclient.window = GDK_WINDOW_XWINDOW (plug->socket_window);
+ xevent.xclient.type = ClientMessage;
+ xevent.xclient.message_type = (Atom)gdk_atom_intern ("_XEMBED", FALSE);
+ xevent.xclient.format = 32;
+ xevent.xclient.data.l[0] = time;
+ xevent.xclient.data.l[1] = message;
+ xevent.xclient.data.l[2] = detail;
+ xevent.xclient.data.l[3] = data1;
+ xevent.xclient.data.l[4] = data2;
+
+ gdk_error_trap_push ();
+ XSendEvent (GDK_DISPLAY (),
+ GDK_WINDOW_XWINDOW (plug->socket_window),
+ False, NoEventMask, &xevent);
+ gdk_flush ();
+ gdk_error_trap_pop ();
+ }
+}
+
+static void
+focus_first_last (GtkPlugXEmbed *plug,
+ GtkDirectionType direction)
+{
+ GtkWindow *window = GTK_WINDOW (plug);
+ GtkWidget *parent;
+
+ if (window->focus_widget)
+ {
+ parent = window->focus_widget->parent;
+ while (parent)
+ {
+ gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
+ parent = GTK_WIDGET (parent)->parent;
+ }
+
+ gtk_window_set_focus (GTK_WINDOW (plug), NULL);
+ }
+
+#ifdef PORT_COMPLETE
+ gtk_widget_child_focus (GTK_WIDGET (plug), direction);
+#endif
+}
+
+static void
+handle_modality_on (GtkPlugXEmbed *plug)
+{
+#ifdef PORT_COMPLETE
+ if (!plug->modality_window)
+ {
+ plug->modality_window = gtk_window_new (GTK_WINDOW_POPUP);
+ gtk_widget_realize (plug->modality_window);
+ gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug->modality_window));
+ gtk_grab_add (plug->modality_window);
+ }
+#else
+ // g_print("Modality On for plug %p\n", plug);
+#endif
+}
+
+static void
+handle_modality_off (GtkPlugXEmbed *plug)
+{
+#ifdef PORT_COMPLETE
+ if (plug->modality_window)
+ {
+ gtk_widget_destroy (plug->modality_window);
+ plug->modality_window = NULL;
+ }
+#else
+ // g_print("Modality Off for plug %p\n", plug);
+#endif
+}
+
+static void
+xembed_set_info (GdkWindow *gdk_window,
+ unsigned long flags)
+{
+ Display *display = GDK_WINDOW_XDISPLAY (gdk_window);
+ Window window = GDK_WINDOW_XWINDOW (gdk_window);
+ unsigned long buffer[2];
+
+ Atom xembed_info_atom = (Atom)gdk_atom_intern ("_XEMBED_INFO", FALSE);
+
+ buffer[1] = 0; /* Protocol version */
+ buffer[1] = flags;
+
+ XChangeProperty (display, window,
+ xembed_info_atom, xembed_info_atom, 32,
+ PropModeReplace,
+ (unsigned char *)buffer, 2);
+}
+
+static void
+handle_xembed_message (GtkPlugXEmbed *plug,
+ glong message,
+ glong detail,
+ glong data1,
+ glong data2,
+ guint32 time)
+{
+ GTK_NOTE (PLUGSOCKET,
+ g_message ("GtkPlugXEmbed: Message of type %ld received\n", message));
+
+ switch (message)
+ {
+ case XEMBED_EMBEDDED_NOTIFY:
+ break;
+ case XEMBED_WINDOW_ACTIVATE:
+ GTK_NOTE(PLUGSOCKET,
+ g_message ("GtkPlugXEmbed: ACTIVATE received"));
+ break;
+ case XEMBED_WINDOW_DEACTIVATE:
+ GTK_NOTE(PLUGSOCKET,
+ g_message ("GtkPlugXEmbed: DEACTIVATE received"));
+ break;
+
+ case XEMBED_MODALITY_ON:
+ handle_modality_on (plug);
+ break;
+ case XEMBED_MODALITY_OFF:
+ handle_modality_off (plug);
+ break;
+
+ case XEMBED_FOCUS_IN:
+ switch (detail)
+ {
+ case XEMBED_FOCUS_FIRST:
+ focus_first_last (plug, GTK_DIR_TAB_FORWARD);
+ break;
+ case XEMBED_FOCUS_LAST:
+ focus_first_last (plug, GTK_DIR_TAB_BACKWARD);
+ break;
+ case XEMBED_FOCUS_CURRENT:
+ /* fall through */;
+ }
+
+ case XEMBED_FOCUS_OUT:
+ {
+ GtkWidget *widget = GTK_WIDGET (plug);
+ GdkEvent event;
+
+ event.focus_change.type = GDK_FOCUS_CHANGE;
+ event.focus_change.window = widget->window;
+ event.focus_change.send_event = TRUE;
+
+ if (message == XEMBED_FOCUS_IN)
+ {
+ event.focus_change.in = TRUE;
+ GTK_WIDGET_CLASS (parent_class)->focus_in_event (widget, (GdkEventFocus *)&event);
+ }
+ else
+ {
+ event.focus_change.in = FALSE;
+ GTK_WIDGET_CLASS (parent_class)->focus_out_event (widget, (GdkEventFocus *)&event);
+ }
+
+ 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 ("GtkPlugXEmbed: Invalid _XEMBED message of type %ld received", message);
+ break;
+
+ default:
+ GTK_NOTE(PLUGSOCKET,
+ g_message ("GtkPlugXEmbed: Ignoring unknown _XEMBED message of type %ld", message));
+ break;
+ }
+}
+
+static GdkFilterReturn
+gtk_plug_xembed_filter_func (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
+{
+ GtkPlugXEmbed *plug = GTK_PLUG_XEMBED (data);
+ XEvent *xevent = (XEvent *)gdk_xevent;
+
+ GdkFilterReturn return_val;
+
+ return_val = GDK_FILTER_CONTINUE;
+
+ switch (xevent->type)
+ {
+ case ClientMessage:
+ if (xevent->xclient.message_type == (Atom)gdk_atom_intern ("_XEMBED", FALSE))
+ {
+ 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]);
+
+
+ return GDK_FILTER_REMOVE;
+ }
+ else if (xevent->xclient.message_type == (Atom)gdk_atom_intern ("WM_DELETE_WINDOW", FALSE))
+ {
+ /* We filter these out because we take being reparented back to the
+ * root window as the reliable end of the embedding protocol
+ */
+
+ return GDK_FILTER_REMOVE;
+ }
+ break;
+ case ReparentNotify:
+ {
+ XReparentEvent *xre = &xevent->xreparent;
+ gboolean was_embedded = plug->socket_window != NULL;
+
+ return_val = GDK_FILTER_REMOVE;
+
+ gtk_object_ref (GTK_OBJECT(plug));
+
+ if (was_embedded)
+ {
+ /* End of embedding protocol for previous socket */
+
+ /* 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_xembed_add_to_socket
+ */
+
+ if (xre->parent != GDK_WINDOW_XWINDOW (plug->socket_window))
+ {
+ GtkWidget *widget = GTK_WIDGET (plug);
+
+ gdk_window_set_user_data (plug->socket_window, NULL);
+ gdk_window_unref (plug->socket_window);
+ plug->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_ROOT_WINDOW())
+ {
+ GdkEvent event;
+
+ event.any.type = GDK_DELETE;
+ event.any.window = gdk_window_ref (widget->window);
+ event.any.send_event = FALSE;
+
+ if (!gtk_widget_event (widget, &event))
+ gtk_widget_destroy (widget);
+
+ gdk_window_unref (event.any.window);
+ }
+ }
+ else
+ goto done;
+ }
+
+ if (xre->parent != GDK_ROOT_WINDOW ())
+ {
+ /* Start of embedding protocol */
+
+ plug->socket_window = gdk_window_lookup (xre->parent);
+ if (plug->socket_window)
+ {
+ gpointer user_data = NULL;
+ gdk_window_get_user_data (plug->socket_window, &user_data);
+
+ if (user_data)
+ {
+ g_warning (/*G_STRLOC*/ "Plug reparented unexpectedly into window in the same process");
+ plug->socket_window = NULL;
+ break;
+ }
+
+ gdk_window_ref (plug->socket_window);
+ }
+ else
+ {
+ plug->socket_window = gdk_window_foreign_new (xre->parent);
+ if (!plug->socket_window) /* Already gone */
+ break;
+ }
+
+#ifdef PORT_COMPLETE
+ if (plug->grabbed_keys)
+ g_hash_table_foreach (plug->grabbed_keys, add_grabbed_key_always, plug);
+#endif
+
+ if (!was_embedded)
+ gtk_signal_emit (GTK_OBJECT (plug), plug_signals[EMBEDDED], 0);
+ }
+
+ done:
+ gtk_object_unref (GTK_OBJECT(plug));
+
+ break;
+ }
+ }
+
+ return GDK_FILTER_CONTINUE;
+}