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/*
* panel-shell.c: panel shell interface implementation
*
* Copyright (C) 2001 Ximian, Inc.
* Copyright (C) 2008 Red Hat, Inc.
* Copyright (C) 2008 Novell, Inc.
* Copyright (C) 2010 Carlos Garcia Campos <carlosgc@gnome.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* Authors:
* Jacob Berkman <jacob@ximian.com>
* Colin Walters <walters@verbum.org>
* Vincent Untz <vuntz@gnome.org>
*/
#include <config.h>
#include <glib/gi18n.h>
#include <libpanel-util/panel-cleanup.h>
#include "panel-profile.h"
#include "panel-session.h"
#include "panel-shell.h"
#define PANEL_DBUS_SERVICE "org.mate.Panel"
static GDBusConnection *dbus_connection = NULL;
static void
panel_shell_on_name_lost (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
/* We lost our DBus name, and there is something replacing us.
* Tell the SM not to restart us automatically, then exit. */
g_printerr ("Panel leaving: a new panel shell is starting.\n");
panel_session_do_not_restart ();
panel_shell_quit ();
}
static void
panel_shell_cleanup (gpointer data)
{
if (dbus_connection != NULL) {
g_object_unref (dbus_connection);
dbus_connection = NULL;
}
}
gboolean
panel_shell_register (gboolean replace)
{
GBusNameOwnerFlags flags;
guint32 request_name_reply;
GVariant *result;
gboolean retval = FALSE;
GError *error = NULL;
if (dbus_connection != NULL)
return TRUE;
panel_cleanup_register (PANEL_CLEAN_FUNC (panel_shell_cleanup), NULL);
/* There isn't a sync version of g_bus_own_name, so we have to requeste
* the name manually here. There's no ui yet so it's safe to use this
* sync api */
dbus_connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
if (dbus_connection == NULL) {
g_warning ("Cannot register the panel shell: %s", error->message);
goto register_out;
}
flags = G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT;
if (replace)
flags |= G_BUS_NAME_OWNER_FLAGS_REPLACE;
result = g_dbus_connection_call_sync (dbus_connection,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus",
"RequestName",
g_variant_new ("(su)",
PANEL_DBUS_SERVICE,
flags),
G_VARIANT_TYPE ("(u)"),
G_DBUS_CALL_FLAGS_NONE,
-1, NULL, &error);
if (!result) {
g_warning ("Cannot register the panel shell: %s",
error->message);
g_error_free (error);
goto register_out;
}
g_variant_get (result, "(u)", &request_name_reply);
g_variant_unref (result);
switch (request_name_reply) {
case 1: /* DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER */
case 4: /* DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER */
retval = TRUE;
g_dbus_connection_signal_subscribe (dbus_connection,
"org.freedesktop.DBus",
"org.freedesktop.DBus",
"NameLost",
"/org/freedesktop/DBus",
PANEL_DBUS_SERVICE,
G_DBUS_SIGNAL_FLAGS_NONE,
(GDBusSignalCallback)panel_shell_on_name_lost,
NULL, NULL);
break;
case 2: /* DBUS_REQUEST_NAME_REPLY_IN_QUEUE */
case 3: /* DBUS_REQUEST_NAME_REPLY_EXISTS */
g_printerr ("Cannot register the panel shell: there is "
"already one running.\n");
break;
default:
g_warning ("Cannot register the panel shell: unhandled "
"reply %u from RequestName", request_name_reply);
}
register_out:
if (!retval) {
panel_session_do_not_restart ();
panel_shell_cleanup (NULL);
}
return retval;
}
void
panel_shell_quit (void)
{
GSList *toplevels_to_destroy, *l;
toplevels_to_destroy = g_slist_copy (panel_toplevel_list_toplevels ());
for (l = toplevels_to_destroy; l; l = l->next)
gtk_widget_destroy (l->data);
g_slist_free (toplevels_to_destroy);
gtk_main_quit ();
}
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