diff options
Diffstat (limited to 'mate-panel/panel-shell.c')
| -rw-r--r-- | mate-panel/panel-shell.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/mate-panel/panel-shell.c b/mate-panel/panel-shell.c new file mode 100644 index 00000000..d54da4b9 --- /dev/null +++ b/mate-panel/panel-shell.c @@ -0,0 +1,164 @@ +/* + * 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 <[email protected]> + * + * 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., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + * + * Authors: + * Jacob Berkman <[email protected]> + * Colin Walters <[email protected]> + * Vincent Untz <[email protected]> + */ + +#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 (); +} |