forked from AuroraMiddleware/gtk
510 lines
16 KiB
C
510 lines
16 KiB
C
/*
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* Copyright © 2010 Codethink Limited
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* Copyright © 2012 Red Hat, Inc.
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* Copyright © 2013 Canonical Limited
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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 licence, 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, see <http://www.gnu.org/licenses/>.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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* Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include "gtkapplicationprivate.h"
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#include "gtksettings.h"
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G_DEFINE_TYPE (GtkApplicationImplDBus, gtk_application_impl_dbus, GTK_TYPE_APPLICATION_IMPL)
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static void
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unregister_client (GtkApplicationImplDBus *dbus)
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{
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GError *error = NULL;
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g_debug ("Unregistering client");
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g_dbus_proxy_call_sync (dbus->sm_proxy,
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"UnregisterClient",
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g_variant_new ("(o)", dbus->client_path),
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G_DBUS_CALL_FLAGS_NONE,
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G_MAXINT,
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NULL,
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&error);
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if (error)
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{
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g_warning ("Failed to unregister client: %s", error->message);
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g_error_free (error);
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}
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g_clear_object (&dbus->client_proxy);
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g_free (dbus->client_path);
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dbus->client_path = NULL;
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}
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static void
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send_quit_response (GtkApplicationImplDBus *dbus,
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gboolean will_quit,
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const gchar *reason)
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{
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g_debug ("Calling EndSessionResponse %d '%s'", will_quit, reason);
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g_dbus_proxy_call (dbus->client_proxy,
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"EndSessionResponse",
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g_variant_new ("(bs)", will_quit, reason ? reason : ""),
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G_DBUS_CALL_FLAGS_NONE,
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G_MAXINT,
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NULL, NULL, NULL);
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}
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static void
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client_proxy_signal (GDBusProxy *proxy,
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const gchar *sender_name,
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const gchar *signal_name,
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GVariant *parameters,
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gpointer user_data)
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{
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GtkApplicationImplDBus *dbus = user_data;
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if (g_str_equal (signal_name, "QueryEndSession"))
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{
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g_debug ("Received QueryEndSession");
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send_quit_response (dbus, TRUE, NULL);
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}
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else if (g_str_equal (signal_name, "CancelEndSession"))
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{
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g_debug ("Received CancelEndSession");
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}
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else if (g_str_equal (signal_name, "EndSession"))
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{
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g_debug ("Received EndSession");
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send_quit_response (dbus, TRUE, NULL);
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unregister_client (dbus);
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g_application_quit (G_APPLICATION (dbus->impl.application));
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}
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else if (g_str_equal (signal_name, "Stop"))
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{
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g_debug ("Received Stop");
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unregister_client (dbus);
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g_application_quit (G_APPLICATION (dbus->impl.application));
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}
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}
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static void
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gtk_application_impl_dbus_startup (GtkApplicationImpl *impl,
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gboolean register_session)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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static gchar *client_id;
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GError *error = NULL;
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GVariant *res;
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dbus->session = g_application_get_dbus_connection (G_APPLICATION (impl->application));
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if (!dbus->session)
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return;
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dbus->application_id = g_application_get_application_id (G_APPLICATION (impl->application));
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dbus->object_path = g_application_get_dbus_object_path (G_APPLICATION (impl->application));
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dbus->unique_name = g_dbus_connection_get_unique_name (dbus->session);
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if (client_id == NULL)
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{
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const gchar *desktop_autostart_id;
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desktop_autostart_id = g_getenv ("DESKTOP_AUTOSTART_ID");
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/* Unset DESKTOP_AUTOSTART_ID in order to avoid child processes to
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* use the same client id.
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*/
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g_unsetenv ("DESKTOP_AUTOSTART_ID");
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client_id = g_strdup (desktop_autostart_id ? desktop_autostart_id : "");
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}
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g_debug ("Connecting to session manager");
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dbus->sm_proxy = g_dbus_proxy_new_sync (dbus->session,
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G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES |
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G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS,
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NULL,
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"org.gnome.SessionManager",
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"/org/gnome/SessionManager",
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"org.gnome.SessionManager",
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NULL,
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&error);
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if (error)
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{
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g_warning ("Failed to get a session proxy: %s", error->message);
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g_error_free (error);
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return;
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}
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/* FIXME: should we reuse the D-Bus application id here ? */
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dbus->app_id = g_strdup (g_get_prgname ());
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if (!register_session)
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return;
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g_debug ("Registering client '%s' '%s'", dbus->app_id, client_id);
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res = g_dbus_proxy_call_sync (dbus->sm_proxy,
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"RegisterClient",
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g_variant_new ("(ss)", dbus->app_id, client_id),
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G_DBUS_CALL_FLAGS_NONE,
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G_MAXINT,
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NULL,
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&error);
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if (error)
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{
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g_warning ("Failed to register client: %s", error->message);
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g_error_free (error);
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g_clear_object (&dbus->sm_proxy);
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return;
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}
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g_variant_get (res, "(o)", &dbus->client_path);
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g_variant_unref (res);
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g_debug ("Registered client at '%s'", dbus->client_path);
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dbus->client_proxy = g_dbus_proxy_new_sync (dbus->session, 0,
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NULL,
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"org.gnome.SessionManager",
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dbus->client_path,
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"org.gnome.SessionManager.ClientPrivate",
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NULL,
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&error);
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if (error)
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{
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g_warning ("Failed to get client proxy: %s", error->message);
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g_error_free (error);
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g_clear_object (&dbus->sm_proxy);
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g_free (dbus->client_path);
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dbus->client_path = NULL;
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return;
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}
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g_signal_connect (dbus->client_proxy, "g-signal", G_CALLBACK (client_proxy_signal), dbus);
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}
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static void
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gtk_application_impl_dbus_shutdown (GtkApplicationImpl *impl)
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{
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}
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GQuark gtk_application_impl_dbus_export_id_quark (void);
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G_DEFINE_QUARK (GtkApplicationImplDBus export id, gtk_application_impl_dbus_export_id)
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static void
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gtk_application_impl_dbus_window_added (GtkApplicationImpl *impl,
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GtkWindow *window)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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GActionGroup *actions;
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gchar *path;
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guint id;
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if (!dbus->session || !GTK_IS_APPLICATION_WINDOW (window))
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return;
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/* Export the action group of this window, based on its id */
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actions = gtk_application_window_get_action_group (GTK_APPLICATION_WINDOW (window));
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path = gtk_application_impl_dbus_get_window_path (dbus, window);
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id = g_dbus_connection_export_action_group (dbus->session, path, actions, NULL);
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g_free (path);
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g_object_set_qdata (G_OBJECT (window), gtk_application_impl_dbus_export_id_quark (), GUINT_TO_POINTER (id));
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}
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static void
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gtk_application_impl_dbus_window_removed (GtkApplicationImpl *impl,
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GtkWindow *window)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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guint id;
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id = GPOINTER_TO_UINT (g_object_get_qdata (G_OBJECT (window), gtk_application_impl_dbus_export_id_quark ()));
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if (id)
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{
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g_dbus_connection_unexport_action_group (dbus->session, id);
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g_object_set_qdata (G_OBJECT (window), gtk_application_impl_dbus_export_id_quark (), NULL);
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}
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}
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static void
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gtk_application_impl_dbus_active_window_changed (GtkApplicationImpl *impl,
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GtkWindow *window)
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{
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}
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static void
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gtk_application_impl_dbus_publish_menu (GtkApplicationImplDBus *dbus,
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const gchar *type,
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GMenuModel *model,
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guint *id,
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gchar **path)
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{
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gint i;
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if (dbus->session == NULL)
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return;
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/* unexport any existing menu */
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if (*id)
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{
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g_dbus_connection_unexport_menu_model (dbus->session, *id);
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g_free (*path);
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*path = NULL;
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*id = 0;
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}
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/* export the new menu, if there is one */
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if (model != NULL)
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{
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/* try getting the preferred name */
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*path = g_strconcat (dbus->object_path, "/menus/", type, NULL);
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*id = g_dbus_connection_export_menu_model (dbus->session, *path, model, NULL);
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/* keep trying until we get a working name... */
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for (i = 0; *id == 0; i++)
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{
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g_free (*path);
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*path = g_strdup_printf ("%s/menus/%s%d", dbus->object_path, type, i);
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*id = g_dbus_connection_export_menu_model (dbus->session, *path, model, NULL);
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}
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}
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}
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static void
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gtk_application_impl_dbus_set_app_menu (GtkApplicationImpl *impl,
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GMenuModel *app_menu)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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gtk_application_impl_dbus_publish_menu (dbus, "appmenu", app_menu, &dbus->app_menu_id, &dbus->app_menu_path);
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}
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static void
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gtk_application_impl_dbus_set_menubar (GtkApplicationImpl *impl,
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GMenuModel *menubar)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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gtk_application_impl_dbus_publish_menu (dbus, "menubar", menubar, &dbus->menubar_id, &dbus->menubar_path);
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}
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static GVariant *
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gtk_application_impl_dbus_real_get_window_system_id (GtkApplicationImplDBus *dbus,
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GtkWindow *window)
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{
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return g_variant_new_uint32 (0);
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}
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/* returns floating */
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static GVariant *
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gtk_application_impl_dbus_get_window_system_id (GtkApplicationImplDBus *dbus,
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GtkWindow *window)
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{
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return GTK_APPLICATION_IMPL_DBUS_GET_CLASS (dbus)->get_window_system_id (dbus, window);
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}
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static guint
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gtk_application_impl_dbus_inhibit (GtkApplicationImpl *impl,
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GtkWindow *window,
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GtkApplicationInhibitFlags flags,
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const gchar *reason)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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GVariant *res;
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GError *error = NULL;
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guint cookie;
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static gboolean warned = FALSE;
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if (dbus->sm_proxy == NULL)
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return 0;
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res = g_dbus_proxy_call_sync (dbus->sm_proxy,
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"Inhibit",
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g_variant_new ("(s@usu)",
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dbus->app_id,
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window ? gtk_application_impl_dbus_get_window_system_id (dbus, window) : g_variant_new_uint32 (0),
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reason,
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flags),
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G_DBUS_CALL_FLAGS_NONE,
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G_MAXINT,
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NULL,
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&error);
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if (error)
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{
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if (!warned)
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{
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g_warning ("Calling Inhibit failed: %s", error->message);
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warned = TRUE;
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}
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g_error_free (error);
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return 0;
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}
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g_variant_get (res, "(u)", &cookie);
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g_variant_unref (res);
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return cookie;
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}
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static void
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gtk_application_impl_dbus_uninhibit (GtkApplicationImpl *impl,
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guint cookie)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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/* Application could only obtain a cookie through a session
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* manager proxy, so it's valid to assert its presence here. */
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g_return_if_fail (dbus->sm_proxy != NULL);
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g_dbus_proxy_call (dbus->sm_proxy,
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"Uninhibit",
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g_variant_new ("(u)", cookie),
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G_DBUS_CALL_FLAGS_NONE,
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G_MAXINT,
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NULL, NULL, NULL);
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}
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static gboolean
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gtk_application_impl_dbus_is_inhibited (GtkApplicationImpl *impl,
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GtkApplicationInhibitFlags flags)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) impl;
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GVariant *res;
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GError *error = NULL;
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gboolean inhibited;
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static gboolean warned = FALSE;
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if (dbus->sm_proxy == NULL)
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return FALSE;
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res = g_dbus_proxy_call_sync (dbus->sm_proxy,
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"IsInhibited",
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g_variant_new ("(u)", flags),
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G_DBUS_CALL_FLAGS_NONE,
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G_MAXINT,
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NULL,
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&error);
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if (error)
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{
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if (!warned)
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{
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g_warning ("Calling IsInhibited failed: %s", error->message);
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warned = TRUE;
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}
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g_error_free (error);
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return FALSE;
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}
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g_variant_get (res, "(b)", &inhibited);
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g_variant_unref (res);
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return inhibited;
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}
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static gboolean
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gtk_application_impl_dbus_prefers_app_menu (GtkApplicationImpl *impl)
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{
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static gboolean decided;
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static gboolean result;
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/* We do not support notifying if/when the result changes, so make
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* sure that once we give an answer, we will always give the same one.
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*/
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if (!decided)
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{
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GtkSettings *gtk_settings;
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gboolean show_app_menu;
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gboolean show_menubar;
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gtk_settings = gtk_settings_get_default ();
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g_object_get (G_OBJECT (gtk_settings),
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"gtk-shell-shows-app-menu", &show_app_menu,
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"gtk-shell-shows-menubar", &show_menubar,
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NULL);
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/* We prefer traditional menus when we have a shell that doesn't
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* show the appmenu or we have a shell that shows menubars
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* (ie: Unity)
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*/
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result = show_app_menu && !show_menubar;
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decided = TRUE;
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}
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return result;
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}
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static void
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gtk_application_impl_dbus_init (GtkApplicationImplDBus *dbus)
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{
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}
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static void
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gtk_application_impl_dbus_finalize (GObject *object)
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{
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GtkApplicationImplDBus *dbus = (GtkApplicationImplDBus *) object;
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g_free (dbus->app_menu_path);
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g_free (dbus->menubar_path);
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g_free (dbus->app_id);
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G_OBJECT_CLASS (gtk_application_impl_dbus_parent_class)->finalize (object);
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}
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static void
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gtk_application_impl_dbus_class_init (GtkApplicationImplDBusClass *class)
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{
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GtkApplicationImplClass *impl_class = GTK_APPLICATION_IMPL_CLASS (class);
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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class->get_window_system_id = gtk_application_impl_dbus_real_get_window_system_id;
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impl_class->startup = gtk_application_impl_dbus_startup;
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impl_class->shutdown = gtk_application_impl_dbus_shutdown;
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impl_class->window_added = gtk_application_impl_dbus_window_added;
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impl_class->window_removed = gtk_application_impl_dbus_window_removed;
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impl_class->active_window_changed = gtk_application_impl_dbus_active_window_changed;
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impl_class->set_app_menu = gtk_application_impl_dbus_set_app_menu;
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impl_class->set_menubar = gtk_application_impl_dbus_set_menubar;
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impl_class->inhibit = gtk_application_impl_dbus_inhibit;
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impl_class->uninhibit = gtk_application_impl_dbus_uninhibit;
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impl_class->is_inhibited = gtk_application_impl_dbus_is_inhibited;
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impl_class->prefers_app_menu = gtk_application_impl_dbus_prefers_app_menu;
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gobject_class->finalize = gtk_application_impl_dbus_finalize;
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}
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gchar *
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gtk_application_impl_dbus_get_window_path (GtkApplicationImplDBus *dbus,
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GtkWindow *window)
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{
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if (dbus->session && GTK_IS_APPLICATION_WINDOW (window))
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return g_strdup_printf ("%s/window/%d",
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dbus->object_path,
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gtk_application_window_get_id (GTK_APPLICATION_WINDOW (window)));
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else
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return NULL;
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}
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