/* 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 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 "gtkmain.h" #include "gtkmarshal.h" #include "gtkplug.h" #include "gtkprivate.h" #include "gdk/gdkkeysyms.h" #include "x11/gdkx.h" #include "xembed.h" static void gtk_plug_class_init (GtkPlugClass *klass); static void gtk_plug_init (GtkPlug *plug); 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 void gtk_plug_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static gboolean gtk_plug_key_press_event (GtkWidget *widget, GdkEventKey *event); static void gtk_plug_forward_key_press (GtkPlug *plug, GdkEventKey *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); #if 0 static void gtk_plug_accel_entries_changed (GtkWindow *window); #endif static GdkFilterReturn gtk_plug_filter_func (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data); static void gtk_plug_free_grabbed_keys (GHashTable *key_table); static void handle_modality_off (GtkPlug *plug); static void send_xembed_message (GtkPlug *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_get_type () { static GtkType plug_type = 0; if (!plug_type) { static const GTypeInfo plug_info = { sizeof (GtkPlugClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gtk_plug_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GtkPlug), 16, /* n_preallocs */ (GInstanceInitFunc) gtk_plug_init, }; plug_type = g_type_register_static (GTK_TYPE_WINDOW, "GtkPlug", &plug_info, 0); } return plug_type; } static void gtk_plug_class_init (GtkPlugClass *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); widget_class->realize = gtk_plug_realize; widget_class->unrealize = gtk_plug_unrealize; widget_class->key_press_event = gtk_plug_key_press_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->size_allocate = gtk_plug_size_allocate; widget_class->focus = gtk_plug_focus; container_class->check_resize = gtk_plug_check_resize; window_class->set_focus = gtk_plug_set_focus; #if 0 window_class->accel_entries_changed = gtk_plug_accel_entries_changed; #endif plug_signals[EMBEDDED] = g_signal_new ("embedded", G_OBJECT_CLASS_TYPE (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkPlugClass, embedded), NULL, NULL, gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); } static void gtk_plug_init (GtkPlug *plug) { GtkWindow *window; window = GTK_WINDOW (plug); window->type = GTK_WINDOW_TOPLEVEL; } static void gtk_plug_set_is_child (GtkPlug *plug, gboolean is_child) { g_assert (!GTK_WIDGET (plug)->parent); if (is_child) { if (plug->modality_window) handle_modality_off (plug); if (plug->modality_group) { gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug)); g_object_unref (plug->modality_group); plug->modality_group = NULL; } GTK_WIDGET_UNSET_FLAGS (plug, GTK_TOPLEVEL); gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_PARENT); _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), GTK_WIDGET (plug)); } else { plug->modality_group = gtk_window_group_new (); gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug)); GTK_WIDGET_SET_FLAGS (plug, GTK_TOPLEVEL); gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_QUEUE); _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), NULL); } } /** * _gtk_plug_add_to_socket: * @plug: a #GtkPlug * @socket: a #GtkSocket * * Add a plug to a socket within the same application. **/ void _gtk_plug_add_to_socket (GtkPlug *plug, GtkSocket *socket) { GtkWidget *widget; g_return_if_fail (GTK_IS_PLUG (plug)); g_return_if_fail (GTK_IS_SOCKET (socket)); g_return_if_fail (GTK_WIDGET_REALIZED (socket)); widget = GTK_WIDGET (plug); gtk_plug_set_is_child (plug, TRUE); plug->same_app = TRUE; socket->plug_widget = widget; if (GTK_WIDGET_REALIZED (widget)) gdk_window_reparent (widget->window, plug->socket_window, 0, 0); gtk_widget_set_parent (widget, GTK_WIDGET (socket)); g_signal_emit_by_name (G_OBJECT (socket), "plug_added", 0); } /** * _gtk_plug_add_to_socket: * @plug: a #GtkPlug * @socket: a #GtkSocket * * Remove a plug from a socket within the same application. **/ void _gtk_plug_remove_from_socket (GtkPlug *plug, GtkSocket *socket) { GtkWidget *widget; GdkEvent event; 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_REALIZED (plug)); widget = GTK_WIDGET (plug); g_object_ref (plug); g_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; socket->plug_window = NULL; socket->same_app = FALSE; plug->same_app = FALSE; plug->socket_window = FALSE; gtk_plug_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 = g_object_ref (widget->window); event.any.send_event = FALSE; if (!gtk_widget_event (widget, &event)) gtk_widget_destroy (widget); g_object_unref (event.any.window); g_object_unref (plug); if (widget_was_visible && GTK_WIDGET_VISIBLE (socket)) gtk_widget_queue_resize (GTK_WIDGET (socket)); g_object_unref (socket); } void gtk_plug_construct (GtkPlug *plug, GdkNativeWindow socket_id) { if (socket_id) { 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_add_to_socket (plug, user_data); else { g_warning (G_STRLOC "Can't create GtkPlug as child of non-GtkSocket"); plug->socket_window = NULL; } } if (plug->socket_window) g_signal_emit (G_OBJECT (plug), plug_signals[EMBEDDED], 0); } } GtkWidget* gtk_plug_new (GdkNativeWindow socket_id) { GtkPlug *plug; plug = GTK_PLUG (gtk_type_new (GTK_TYPE_PLUG)); gtk_plug_construct (plug, socket_id); return GTK_WIDGET (plug); } /** * 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(). * * Return value: the window ID for the plug **/ GdkNativeWindow gtk_plug_get_id (GtkPlug *plug) { g_return_val_if_fail (GTK_IS_PLUG (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_unrealize (GtkWidget *widget) { GtkPlug *plug; g_return_if_fail (GTK_IS_PLUG (widget)); plug = GTK_PLUG (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; } if (!plug->same_app) { if (plug->modality_window) handle_modality_off (plug); gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug)); g_object_unref (plug->modality_group); } if (GTK_WIDGET_CLASS (parent_class)->unrealize) (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } static void gtk_plug_realize (GtkWidget *widget) { GtkWindow *window; GtkPlug *plug; GdkWindowAttr attributes; gint attributes_mask; g_return_if_fail (GTK_IS_PLUG (widget)); GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); window = GTK_WINDOW (widget); plug = GTK_PLUG (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_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_filter_func, widget); plug->modality_group = gtk_window_group_new (); gtk_window_group_add_window (plug->modality_group, window); 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_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_hide (GtkWidget *widget) { if (GTK_WIDGET_TOPLEVEL (widget)) GTK_WIDGET_CLASS (parent_class)->hide (widget); else GTK_WIDGET_CLASS (bin_class)->hide (widget); } /* From gdkinternals.h */ void gdk_synthesize_window_state (GdkWindow *window, GdkWindowState unset_flags, GdkWindowState set_flags); static void gtk_plug_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); gdk_synthesize_window_state (widget->window, GDK_WINDOW_STATE_WITHDRAWN, 0); } else GTK_WIDGET_CLASS (bin_class)->map (widget); } static void gtk_plug_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); gdk_synthesize_window_state (widget->window, 0, GDK_WINDOW_STATE_WITHDRAWN); } else GTK_WIDGET_CLASS (bin_class)->unmap (widget); } static void gtk_plug_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); 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_key_press_event (GtkWidget *widget, GdkEventKey *event) { if (!GTK_WINDOW (widget)->has_focus) { gtk_plug_forward_key_press (GTK_PLUG (widget), event); return TRUE; } else return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event); } static void gtk_plug_forward_key_press (GtkPlug *plug, GdkEventKey *event) { XEvent xevent; xevent.xkey.type = KeyPress; xevent.xkey.display = GDK_WINDOW_XDISPLAY (GTK_WIDGET(plug)->window); xevent.xkey.window = GDK_WINDOW_XWINDOW (plug->socket_window); xevent.xkey.root = GDK_ROOT_WINDOW (); /* FIXME */ xevent.xkey.time = event->time; /* FIXME, the following might cause big problems for * non-GTK apps */ xevent.xkey.x = 0; xevent.xkey.y = 0; xevent.xkey.x_root = 0; xevent.xkey.y_root = 0; xevent.xkey.state = event->state; xevent.xkey.keycode = XKeysymToKeycode(GDK_DISPLAY(), event->keyval); xevent.xkey.same_screen = TRUE; /* FIXME ? */ gdk_error_trap_push (); XSendEvent (GDK_DISPLAY (), GDK_WINDOW_XWINDOW (plug->socket_window), False, NoEventMask, &xevent); gdk_flush (); gdk_error_trap_pop (); } static void gtk_plug_set_focus (GtkWindow *window, GtkWidget *focus) { GtkPlug *plug = GTK_PLUG (window); GTK_WINDOW_CLASS (parent_class)->set_focus (window, focus); /* Ask for focus from embedder */ if (focus && !window->has_focus) { #if 0 XEvent xevent; xevent.xfocus.type = FocusIn; xevent.xfocus.display = GDK_WINDOW_XDISPLAY (GTK_WIDGET(plug)->window); xevent.xfocus.window = GDK_WINDOW_XWINDOW (plug->socket_window); xevent.xfocus.mode = EMBEDDED_APP_WANTS_FOCUS; xevent.xfocus.detail = FALSE; /* Don't force */ gdk_error_trap_push (); XSendEvent (GDK_DISPLAY (), GDK_WINDOW_XWINDOW (plug->socket_window), False, NoEventMask, &xevent); gdk_flush (); gdk_error_trap_pop (); #endif send_xembed_message (plug, XEMBED_REQUEST_FOCUS, 0, 0, 0, gtk_get_current_event_time ()); } } #if 0 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_keys (gpointer key, gpointer val, gpointer data) { GrabbedKey *grabbed_key = key; GtkPlug *plug = data; if (!plug->grabbed_keys || !g_hash_table_lookup (plug->grabbed_keys, grabbed_key)) { send_xembed_message (plug, XEMBED_GRAB_KEY, 0, grabbed_key->accelerator_key, grabbed_key->accelerator_mods, gtk_get_current_event_time ()); } } static void remove_grabbed_keys (gpointer key, gpointer val, gpointer data) { GrabbedKey *grabbed_key = key; GtkPlug *plug = data; if (!plug->grabbed_keys || !g_hash_table_lookup (plug->grabbed_keys, grabbed_key)) { send_xembed_message (plug, XEMBED_UNGRAB_KEY, 0, grabbed_key->accelerator_key, grabbed_key->accelerator_mods, gtk_get_current_event_time ()); } } static void gtk_plug_free_grabbed_keys (GHashTable *key_table) { g_hash_table_foreach (key_table, (GHFunc)g_free, NULL); g_hash_table_destroy (key_table); } static void gtk_plug_accel_entries_changed (GtkWindow *window) { GHashTable *new_grabbed_keys, *old_grabbed_keys; GSList *accel_groups, *tmp_list; GtkPlug *plug = GTK_PLUG (window); new_grabbed_keys = g_hash_table_new (grabbed_key_hash, grabbed_key_equal); accel_groups = gtk_accel_groups_from_object (G_OBJECT (window)); tmp_list = accel_groups; while (tmp_list) { GtkAccelGroup *accel_group = tmp_list->data; gint i, n_entries; GtkAccelEntry *entries; gtk_accel_group_get_entries (accel_group, &entries, &n_entries); for (i = 0; i < n_entries; i++) { GdkKeymapKey *keys; gint n_keys; if (gdk_keymap_get_entries_for_keyval (NULL, entries[i].accelerator_key, &keys, &n_keys)) { GrabbedKey *key = g_new (GrabbedKey, 1); key->accelerator_key = keys[0].keycode; key->accelerator_mods = entries[i].accelerator_mods; g_hash_table_insert (new_grabbed_keys, key, key); g_free (keys); } } tmp_list = tmp_list->next; } g_hash_table_foreach (new_grabbed_keys, add_grabbed_keys, plug); old_grabbed_keys = plug->grabbed_keys; plug->grabbed_keys = new_grabbed_keys; if (old_grabbed_keys) { g_hash_table_foreach (old_grabbed_keys, remove_grabbed_keys, plug); gtk_plug_free_grabbed_keys (old_grabbed_keys); } } #endif 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 *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 ()); #if 0 gtk_window_set_focus (GTK_WINDOW (widget), NULL); gdk_error_trap_push (); XSetInputFocus (GDK_DISPLAY (), GDK_WINDOW_XWINDOW (plug->socket_window), RevertToParent, event->time); gdk_flush (); gdk_error_trap_pop (); gtk_plug_forward_key_press (plug, event); #endif } } return FALSE; } else { /* Try to focus the first widget in the window */ if (gtk_widget_child_focus (bin->child, direction)) return TRUE; } return FALSE; } static void gtk_plug_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 (GtkPlug *plug, glong message, glong detail, glong data1, glong data2, guint32 time) { if (plug->socket_window) { XEvent xevent; xevent.xclient.window = GDK_WINDOW_XWINDOW (plug->socket_window); xevent.xclient.type = ClientMessage; xevent.xclient.message_type = gdk_x11_get_xatom_by_name ("_XEMBED"); 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 (GtkPlug *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); } gtk_widget_child_focus (GTK_WIDGET (plug), direction); } static void handle_modality_on (GtkPlug *plug) { if (!plug->modality_window) { plug->modality_window = gtk_window_new (GTK_WINDOW_POPUP); gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug->modality_window)); gtk_grab_add (plug->modality_window); } } static void handle_modality_off (GtkPlug *plug) { if (plug->modality_window) { gtk_widget_destroy (plug->modality_window); plug->modality_window = NULL; } } 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 = gdk_x11_get_xatom_by_name ("_XEMBED_INFO"); 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 (GtkPlug *plug, glong message, glong detail, glong data1, glong data2, guint32 time) { GTK_NOTE (PLUGSOCKET, g_message ("Message of type %ld received", message)); switch (message) { case XEMBED_EMBEDDED_NOTIFY: break; case XEMBED_WINDOW_ACTIVATE: GTK_NOTE(PLUGSOCKET, g_message ("GtkPlug: ACTIVATE received")); break; case XEMBED_WINDOW_DEACTIVATE: GTK_NOTE(PLUGSOCKET, g_message ("GtkPlug: 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: { GdkEvent event; event.focus_change.type = GDK_FOCUS_CHANGE; event.focus_change.window = GTK_WIDGET (plug)->window; event.focus_change.send_event = TRUE; event.focus_change.in = (message == XEMBED_FOCUS_IN); gtk_widget_event (GTK_WIDGET (plug), &event); break; } case XEMBED_REQUEST_FOCUS: case XEMBED_FOCUS_NEXT: case XEMBED_FOCUS_PREV: case XEMBED_GRAB_KEY: case XEMBED_UNGRAB_KEY: g_warning ("GtkPlug: Invalid _XEMBED message of type %ld received", message); break; default: GTK_NOTE(PLUGSOCKET, g_message ("GtkPlug: Ignoring unknown _XEMBED message of type %ld", message)); break; } } static GdkFilterReturn gtk_plug_filter_func (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data) { GtkPlug *plug = GTK_PLUG (data); XEvent *xevent = (XEvent *)gdk_xevent; GdkFilterReturn return_val; return_val = GDK_FILTER_CONTINUE; switch (xevent->type) { case ClientMessage: if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name ("_XEMBED")) { 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 == gdk_x11_get_xatom_by_name ("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 GDK_FILTER_REMOVE; } break; case ReparentNotify: { XReparentEvent *xre = &xevent->xreparent; gboolean was_embedded = plug->socket_window != NULL; return_val = GDK_FILTER_REMOVE; g_object_ref (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_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 = g_object_ref (widget->window); event.any.send_event = FALSE; if (!gtk_widget_event (widget, &event)) gtk_widget_destroy (widget); g_object_unref (event.any.window); } } else break; } 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; } g_object_ref (plug->socket_window); } else { plug->socket_window = gdk_window_foreign_new (xre->parent); if (!plug->socket_window) /* Already gone */ break; } /* FIXME: Add grabbed keys here */ if (!was_embedded) g_signal_emit (G_OBJECT (plug), plug_signals[EMBEDDED], 0); } g_object_unref (plug); break; } } return GDK_FILTER_CONTINUE; }