/* 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 "config.h"
#ifdef XINPUT_2
/* Hack to have keyboard events interpreted
* regardless of the default device manager
*/
#define GDK_COMPILATION
#include "x11/gdkdevicemanager-core.h"
#include "x11/gdkdevicemanager-xi2.h"
#include "x11/gdkeventtranslator.h"
#undef GDK_COMPILATION
#endif /* XINPUT_2 */
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkplug.h"
#include "gtkprivate.h"
#include "gtkplugprivate.h"
#include "gtkdebug.h"
#include "x11/gdkx.h"
#include "gtkxembed.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_get_window (GTK_WIDGET (plug)));
}
void
_gtk_plug_windowing_realize_toplevel (GtkPlug *plug)
{
xembed_set_info (gtk_widget_get_window (GTK_WIDGET (plug)), 0);
}
void
_gtk_plug_windowing_map_toplevel (GtkPlug *plug)
{
xembed_set_info (gtk_widget_get_window (GTK_WIDGET (plug)), XEMBED_MAPPED);
}
void
_gtk_plug_windowing_unmap_toplevel (GtkPlug *plug)
{
xembed_set_info (gtk_widget_get_window (GTK_WIDGET (plug)), 0);
}
void
_gtk_plug_windowing_set_focus (GtkPlug *plug)
{
GtkPlugPrivate *priv = plug->priv;
_gtk_xembed_send_message (priv->socket_window,
XEMBED_REQUEST_FOCUS, 0, 0, 0);
}
void
_gtk_plug_windowing_add_grabbed_key (GtkPlug *plug,
guint accelerator_key,
GdkModifierType accelerator_mods)
{
GtkPlugPrivate *priv = plug->priv;
_gtk_xembed_send_message (priv->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)
{
GtkPlugPrivate *priv = plug->priv;
_gtk_xembed_send_message (priv->socket_window, XEMBED_GTK_UNGRAB_KEY, 0,
accelerator_key, accelerator_mods);
}
void
_gtk_plug_windowing_focus_to_parent (GtkPlug *plug,
GtkDirectionType direction)
{
GtkPlugPrivate *priv = plug->priv;
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 (priv->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);
GtkPlugPrivate *priv = plug->priv;
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 = 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_XWINDOW (priv->socket_window))
{
GtkWidget *widget = GTK_WIDGET (plug);
gdk_window_set_user_data (priv->socket_window, NULL);
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_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"));
priv->socket_window = gdk_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_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 */
}
_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;
}
#ifdef XINPUT_2
case KeyPress:
case KeyRelease:
{
static GdkDeviceManager *core_device_manager = NULL;
GdkDeviceManager *device_manager;
GdkEvent *translated_event;
GList *devices, *d;
GdkDevice *keyboard = NULL;
device_manager = gdk_display_get_device_manager (display);
/* bail out if the device manager already
* interprets core keyboard events.
*/
if (!GDK_IS_DEVICE_MANAGER_XI2 (device_manager))
return GDK_FILTER_CONTINUE;
/* Find out the first keyboard device, the
* generated event will be assigned to it.
*/
devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
for (d = devices; d; d = d->next)
{
GdkDevice *device = d->data;
if (device->source == GDK_SOURCE_KEYBOARD)
keyboard = device;
}
g_list_free (devices);
if (!keyboard)
return GDK_FILTER_CONTINUE;
/* This is a crude hack so key events
* are interpreted as if there was a
* GdkDeviceManagerCore available.
*/
if (G_UNLIKELY (!core_device_manager))
core_device_manager = g_object_new (GDK_TYPE_DEVICE_MANAGER_CORE,
"display", display,
NULL);
translated_event = gdk_event_translator_translate (GDK_EVENT_TRANSLATOR (core_device_manager), display, xevent);
gdk_event_set_device (translated_event, keyboard);
gtk_main_do_event (translated_event);
gdk_event_free (translated_event);
return_val = GDK_FILTER_REMOVE;
}
#endif
}
return return_val;
}