public class IndicatorSound.Service { public Service () { this.volume_control = new VolumeControl (); this.players = new MediaPlayerList (); this.players.player_added.connect (player_added); } public int run () { if (this.loop != null) { warning ("service is already running"); return 1; } Bus.own_name (BusType.SESSION, "com.canonical.indicator.sound", BusNameOwnerFlags.NONE, this.bus_acquired, null, this.name_lost); this.loop = new MainLoop (null, false); this.loop.run (); return 0; } const ActionEntry[] action_entries = { { "root", null, null, "('', 'audio-volume-high-panel', '', true)", null }, { "settings", activate_settings, null, null, null } }; MainLoop loop; SimpleActionGroup actions; Menu menu; VolumeControl volume_control; MediaPlayerList players; uint player_action_update_id; void activate_settings (SimpleAction action, Variant? param) { try { Process.spawn_command_line_async ("gnome-control-center sound"); } catch (Error e) { warning ("unable to launch sound settings: %s", e.message); } } static Menu create_base_menu () { var submenu = new Menu (); submenu.append ("Mute", "indicator.mute"); var slider = new MenuItem (null, "indicator.volume"); slider.set_attribute ("x-canonical-type", "s", "com.canonical.unity.slider"); submenu.append_item (slider); submenu.append ("Sound Settingsā€¦", "indicator.settings"); var root = new MenuItem (null, "indicator.root"); root.set_attribute ("x-canonical-type", "s", "com.canonical.indicator.root"); root.set_submenu (submenu); var menu = new Menu (); menu.append_item (root); return menu; } Action create_mute_action () { var mute_action = new SimpleAction.stateful ("mute", null, this.volume_control.mute); mute_action.activate.connect ( (action, param) => { action.change_state (!action.get_state ().get_boolean ()); }); mute_action.change_state.connect ( (action, val) => { volume_control.set_mute (val.get_boolean ()); }); this.volume_control.notify["mute"].connect ( () => { mute_action.set_state (this.volume_control.mute); }); return mute_action; } Action create_volume_action () { var volume_action = new SimpleAction.stateful ("volume", null, this.volume_control.get_volume ()); volume_action.change_state.connect ( (action, val) => { volume_control.set_volume (val.get_double ()); }); this.volume_control.volume_changed.connect ( (volume) => { volume_action.set_state (volume); }); this.volume_control.bind_property ("ready", volume_action, "enabled", BindingFlags.SYNC_CREATE); return volume_action; } void bus_acquired (DBusConnection connection, string name) { this.actions = new SimpleActionGroup (); this.actions.add_entries (action_entries, this); this.actions.add_action (this.create_mute_action ()); this.actions.add_action (this.create_volume_action ()); this.menu = create_base_menu (); try { connection.export_action_group ("/com/canonical/indicator/sound", this.actions); connection.export_menu_model ("/com/canonical/indicator/sound/desktop", this.menu); } catch (Error e) { critical ("%s", e.message); } } void name_lost (DBusConnection connection, string name) { this.loop.quit (); } bool update_player_action (MediaPlayer player) { var builder = new VariantBuilder (new VariantType ("a{sv}")); builder.add ("{sv}", "running", new Variant ("b", player.is_running)); var state = builder.end (); SimpleAction? action = this.actions.lookup (player.id) as SimpleAction; if (action == null) { action = new SimpleAction.stateful (player.id, null, state); action.activate.connect ( () => { player.launch (); }); this.actions.insert (action); } else { action.set_state (state); } this.player_action_update_id = 0; return false; } void eventually_update_player_action (MediaPlayer player) { if (player_action_update_id == 0) this.player_action_update_id = Idle.add ( () => this.update_player_action (player) ); } void player_added (MediaPlayer player) { var item = new MenuItem (player.name, player.id); item.set_attribute ("x-canonical-type", "s", "com.canonical.unity.media-player"); this.menu.insert_item (this.menu.get_n_items () -1, item); eventually_update_player_action (player); player.notify.connect ( () => eventually_update_player_action (player) ); } }