/* 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 "gtkmarshalers.h" #include "gtkplug.h" #include "gtkprivate.h" #include "gtkplugprivate.h" #include "x11/gdkx.h" #include "gtkxembed.h" #include "gtkalias.h" static void xembed_set_info (GdkWindow *window, unsigned long flags); GdkNativeWindow _gtk_plug_windowing_get_id (GtkPlug *plug) { return GDK_WINDOW_XWINDOW (GTK_WIDGET (plug)->window); } void _gtk_plug_windowing_realize_toplevel (GtkPlug *plug) { xembed_set_info (GTK_WIDGET (plug)->window, 0); } void _gtk_plug_windowing_map_toplevel (GtkPlug *plug) { xembed_set_info (GTK_WIDGET (plug)->window, XEMBED_MAPPED); } void _gtk_plug_windowing_unmap_toplevel (GtkPlug *plug) { xembed_set_info (GTK_WIDGET (plug)->window, 0); } void _gtk_plug_windowing_set_focus (GtkPlug *plug) { _gtk_xembed_send_message (plug->socket_window, XEMBED_REQUEST_FOCUS, 0, 0, 0); } void _gtk_plug_windowing_add_grabbed_key (GtkPlug *plug, guint accelerator_key, GdkModifierType accelerator_mods) { _gtk_xembed_send_message (plug->socket_window, XEMBED_GTK_GRAB_KEY, 0, accelerator_key, accelerator_mods); } void _gtk_plug_windowing_remove_grabbed_key (GtkPlug *plug, guint accelerator_key, GdkModifierType accelerator_mods) { _gtk_xembed_send_message (plug->socket_window, XEMBED_GTK_UNGRAB_KEY, 0, accelerator_key, accelerator_mods); } void _gtk_plug_windowing_focus_to_parent (GtkPlug *plug, GtkDirectionType direction) { XEmbedMessageType message = XEMBED_FOCUS_PREV; /* Quiet GCC */ 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; } _gtk_xembed_send_focus_message (plug->socket_window, message, 0); } 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_XWINDOW (window), xembed_info_atom, xembed_info_atom, 32, PropModeReplace, (unsigned char *)buffer, 2); } 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; } } GdkFilterReturn _gtk_plug_windowing_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); 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_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 = plug->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_XWINDOW (plug->socket_window)) { GtkWidget *widget = GTK_WIDGET (plug); gdk_window_set_user_data (plug->socket_window, NULL); g_object_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_WINDOW_XWINDOW (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_XWINDOW (gdk_screen_get_root_window (screen))) { /* Start of embedding protocol */ GTK_NOTE (PLUGSOCKET, g_message ("GtkPlug: start of embedding")); plug->socket_window = gdk_window_lookup_for_display (display, 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; /* FIXME: shouldn't this unref the plug? i.e. "goto done;" instead */ } g_object_ref (plug->socket_window); } else { plug->socket_window = gdk_window_foreign_new_for_display (display, xre->parent); if (!plug->socket_window) /* Already gone */ break; /* FIXME: shouldn't this unref the plug? i.e. "goto done;" instead */ } _gtk_plug_add_all_grabbed_keys (plug); if (!was_embedded) g_signal_emit_by_name (plug, "embedded"); g_object_notify (G_OBJECT (plug), "embedded"); } done: g_object_unref (plug); break; } } return return_val; }