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/*
* Copyright 2013 Canonical Ltd.
*
* 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; version 3.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Lars Uebernickel <lars.uebernickel@canonical.com>
*/
public class IndicatorSound.Service {
public Service () {
this.settings = new Settings ("com.canonical.indicator.sound");
this.volume_control = new VolumeControl ();
this.players = new MediaPlayerList ();
this.players.player_added.connect (this.player_added);
this.players.player_removed.connect (this.player_removed);
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 ();
this.players.sync (settings.get_strv ("preferred-media-players"));
this.settings.changed["preferred-media-players"].connect ( () => {
this.players.sync (settings.get_strv ("preferred-media-players"));
});
}
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;
Settings settings;
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 Settings…", "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) {
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 ();
}
Variant action_state_for_player (MediaPlayer player) {
var builder = new VariantBuilder (new VariantType ("a{sv}"));
builder.add ("{sv}", "running", new Variant ("b", player.is_running));
return builder.end ();
}
bool update_player_actions () {
foreach (var player in this.players) {
SimpleAction? action = this.actions.lookup (player.id) as SimpleAction;
if (action != null)
action.set_state (this.action_state_for_player (player));
}
this.player_action_update_id = 0;
return false;
}
void eventually_update_player_actions () {
if (player_action_update_id == 0)
this.player_action_update_id = Idle.add (this.update_player_actions);
}
void update_preferred_players () {
var builder = new VariantBuilder (VariantType.STRING_ARRAY);
foreach (var player in this.players)
builder.add ("s", player.id);
this.settings.set_value ("preferred-media-players", builder.end ());
}
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);
SimpleAction action = new SimpleAction.stateful (player.id, null, this.action_state_for_player (player));
action.activate.connect ( () => { player.launch (); });
this.actions.insert (action);
player.notify.connect (this.eventually_update_player_actions);
this.update_preferred_players ();
}
void player_removed (MediaPlayer player) {
this.actions.remove (player.id);
int n = this.menu.get_n_items ();
for (int i = 0; i < n; i++) {
string action;
this.menu.get_item_attribute (i, "action", "s", out action);
if (action == player.id) {
this.menu.remove (i);
break;
}
}
this.update_preferred_players ();
}
}
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