forked from AuroraMiddleware/gtk
333 lines
9.0 KiB
C
333 lines
9.0 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* By Owen Taylor <otaylor@gtk.org> 98/4/4 */
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkplug.h"
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#include "gtkprivate.h"
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#include "gtkplugprivate.h"
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#include "x11/gdkx.h"
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#include "gtkxembed.h"
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#include "gtkalias.h"
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static void xembed_set_info (GdkWindow *window,
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unsigned long flags);
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GdkNativeWindow
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_gtk_plug_windowing_get_id (GtkPlug *plug)
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{
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return GDK_WINDOW_XWINDOW (GTK_WIDGET (plug)->window);
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}
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void
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_gtk_plug_windowing_realize_toplevel (GtkPlug *plug)
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{
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xembed_set_info (GTK_WIDGET (plug)->window, 0);
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}
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void
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_gtk_plug_windowing_map_toplevel (GtkPlug *plug)
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{
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xembed_set_info (GTK_WIDGET (plug)->window, XEMBED_MAPPED);
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}
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void
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_gtk_plug_windowing_unmap_toplevel (GtkPlug *plug)
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{
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xembed_set_info (GTK_WIDGET (plug)->window, 0);
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}
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void
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_gtk_plug_windowing_set_focus (GtkPlug *plug)
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{
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_gtk_xembed_send_message (plug->socket_window,
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XEMBED_REQUEST_FOCUS, 0, 0, 0);
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}
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void
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_gtk_plug_windowing_add_grabbed_key (GtkPlug *plug,
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guint accelerator_key,
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GdkModifierType accelerator_mods)
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{
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_gtk_xembed_send_message (plug->socket_window, XEMBED_GTK_GRAB_KEY, 0,
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accelerator_key, accelerator_mods);
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}
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void
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_gtk_plug_windowing_remove_grabbed_key (GtkPlug *plug,
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guint accelerator_key,
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GdkModifierType accelerator_mods)
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{
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_gtk_xembed_send_message (plug->socket_window, XEMBED_GTK_UNGRAB_KEY, 0,
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accelerator_key, accelerator_mods);
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}
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void
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_gtk_plug_windowing_focus_to_parent (GtkPlug *plug,
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GtkDirectionType direction)
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{
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XEmbedMessageType message = XEMBED_FOCUS_PREV; /* Quiet GCC */
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switch (direction)
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{
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case GTK_DIR_UP:
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case GTK_DIR_LEFT:
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case GTK_DIR_TAB_BACKWARD:
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message = XEMBED_FOCUS_PREV;
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break;
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case GTK_DIR_DOWN:
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case GTK_DIR_RIGHT:
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case GTK_DIR_TAB_FORWARD:
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message = XEMBED_FOCUS_NEXT;
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break;
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}
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_gtk_xembed_send_focus_message (plug->socket_window, message, 0);
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}
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static void
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xembed_set_info (GdkWindow *window,
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unsigned long flags)
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{
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GdkDisplay *display = gdk_window_get_display (window);
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unsigned long buffer[2];
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Atom xembed_info_atom = gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED_INFO");
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buffer[0] = GTK_XEMBED_PROTOCOL_VERSION;
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buffer[1] = flags;
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XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
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GDK_WINDOW_XWINDOW (window),
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xembed_info_atom, xembed_info_atom, 32,
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PropModeReplace,
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(unsigned char *)buffer, 2);
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}
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static void
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handle_xembed_message (GtkPlug *plug,
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XEmbedMessageType message,
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glong detail,
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glong data1,
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glong data2,
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guint32 time)
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{
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GtkWindow *window = GTK_WINDOW (plug);
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GTK_NOTE (PLUGSOCKET,
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g_message ("GtkPlug: %s received", _gtk_xembed_message_name (message)));
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switch (message)
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{
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case XEMBED_EMBEDDED_NOTIFY:
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break;
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case XEMBED_WINDOW_ACTIVATE:
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_gtk_window_set_is_active (window, TRUE);
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break;
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case XEMBED_WINDOW_DEACTIVATE:
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_gtk_window_set_is_active (window, FALSE);
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break;
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case XEMBED_MODALITY_ON:
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_gtk_plug_handle_modality_on (plug);
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break;
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case XEMBED_MODALITY_OFF:
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_gtk_plug_handle_modality_off (plug);
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break;
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case XEMBED_FOCUS_IN:
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_gtk_window_set_has_toplevel_focus (window, TRUE);
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switch (detail)
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{
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case XEMBED_FOCUS_FIRST:
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_gtk_plug_focus_first_last (plug, GTK_DIR_TAB_FORWARD);
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break;
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case XEMBED_FOCUS_LAST:
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_gtk_plug_focus_first_last (plug, GTK_DIR_TAB_BACKWARD);
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break;
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case XEMBED_FOCUS_CURRENT:
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break;
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}
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break;
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case XEMBED_FOCUS_OUT:
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_gtk_window_set_has_toplevel_focus (window, FALSE);
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break;
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case XEMBED_GRAB_KEY:
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case XEMBED_UNGRAB_KEY:
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case XEMBED_GTK_GRAB_KEY:
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case XEMBED_GTK_UNGRAB_KEY:
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case XEMBED_REQUEST_FOCUS:
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case XEMBED_FOCUS_NEXT:
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case XEMBED_FOCUS_PREV:
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g_warning ("GtkPlug: Invalid _XEMBED message %s received", _gtk_xembed_message_name (message));
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break;
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default:
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GTK_NOTE(PLUGSOCKET,
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g_message ("GtkPlug: Ignoring unknown _XEMBED message of type %d", message));
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break;
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}
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}
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GdkFilterReturn
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_gtk_plug_windowing_filter_func (GdkXEvent *gdk_xevent,
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GdkEvent *event,
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gpointer data)
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{
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GdkScreen *screen = gdk_window_get_screen (event->any.window);
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GdkDisplay *display = gdk_screen_get_display (screen);
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GtkPlug *plug = GTK_PLUG (data);
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XEvent *xevent = (XEvent *)gdk_xevent;
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GdkFilterReturn return_val;
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return_val = GDK_FILTER_CONTINUE;
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switch (xevent->type)
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{
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case ClientMessage:
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if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED"))
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{
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_gtk_xembed_push_message (xevent);
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handle_xembed_message (plug,
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xevent->xclient.data.l[1],
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xevent->xclient.data.l[2],
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xevent->xclient.data.l[3],
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xevent->xclient.data.l[4],
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xevent->xclient.data.l[0]);
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_gtk_xembed_pop_message ();
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return_val = GDK_FILTER_REMOVE;
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}
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else if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
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{
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/* We filter these out because we take being reparented back to the
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* root window as the reliable end of the embedding protocol
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*/
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return_val = GDK_FILTER_REMOVE;
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}
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break;
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case ReparentNotify:
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{
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XReparentEvent *xre = &xevent->xreparent;
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gboolean was_embedded = plug->socket_window != NULL;
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GTK_NOTE (PLUGSOCKET, g_message("GtkPlug: ReparentNotify received"));
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return_val = GDK_FILTER_REMOVE;
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g_object_ref (plug);
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if (was_embedded)
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{
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/* End of embedding protocol for previous socket */
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GTK_NOTE (PLUGSOCKET, g_message ("GtkPlug: end of embedding"));
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/* FIXME: race if we remove from another socket and
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* then add to a local window before we get notification
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* Probably need check in _gtk_plug_add_to_socket
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*/
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if (xre->parent != GDK_WINDOW_XWINDOW (plug->socket_window))
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{
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GtkWidget *widget = GTK_WIDGET (plug);
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gdk_window_set_user_data (plug->socket_window, NULL);
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g_object_unref (plug->socket_window);
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plug->socket_window = NULL;
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/* Emit a delete window, as if the user attempted
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* to close the toplevel. Simple as to how we
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* handle WM_DELETE_WINDOW, if it isn't handled
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* we destroy the widget. BUt only do this if
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* we are being reparented to the root window.
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* Moving from one embedder to another should
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* be invisible to the app.
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*/
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if (xre->parent == GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen)))
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{
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GTK_NOTE (PLUGSOCKET, g_message ("GtkPlug: calling gtk_plug_send_delete_event()"));
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_gtk_plug_send_delete_event (widget);
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g_object_notify (G_OBJECT (plug), "embedded");
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}
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}
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else
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goto done;
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}
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if (xre->parent != GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen)))
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{
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/* Start of embedding protocol */
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GTK_NOTE (PLUGSOCKET, g_message ("GtkPlug: start of embedding"));
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plug->socket_window = gdk_window_lookup_for_display (display, xre->parent);
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if (plug->socket_window)
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{
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gpointer user_data = NULL;
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gdk_window_get_user_data (plug->socket_window, &user_data);
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if (user_data)
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{
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g_warning (G_STRLOC "Plug reparented unexpectedly into window in the same process");
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plug->socket_window = NULL;
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break; /* FIXME: shouldn't this unref the plug? i.e. "goto done;" instead */
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}
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g_object_ref (plug->socket_window);
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}
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else
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{
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plug->socket_window = gdk_window_foreign_new_for_display (display, xre->parent);
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if (!plug->socket_window) /* Already gone */
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break; /* FIXME: shouldn't this unref the plug? i.e. "goto done;" instead */
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}
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_gtk_plug_add_all_grabbed_keys (plug);
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if (!was_embedded)
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g_signal_emit_by_name (plug, "embedded");
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g_object_notify (G_OBJECT (plug), "embedded");
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}
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done:
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g_object_unref (plug);
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break;
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}
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}
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return return_val;
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}
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