/*
* 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 .
*
* Authors:
* Lars Uebernickel
*/
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_action_entries (action_entries, this);
this.actions.add_action (this.create_mute_action ());
this.actions.add_action (this.create_volume_action ());
this.actions.add_action (this.create_mic_volume_action ());
this.menus = new HashTable (str_hash, str_equal);
this.menus.insert ("desktop", new SoundMenu ("indicator.desktop-settings"));
this.menus.insert ("phone", new SoundMenu ("indicator.phone-settings"));
this.menus.@foreach ( (profile, menu) => {
this.volume_control.bind_property ("active-mic", menu, "show-mic-volume", BindingFlags.SYNC_CREATE);
});
this.players.sync (settings.get_strv ("interested-media-players"));
this.settings.changed["interested-media-players"].connect ( () => {
this.players.sync (settings.get_strv ("interested-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, "@a{sv} {}", null },
{ "scroll", activate_scroll_action, "i", null, null },
{ "desktop-settings", activate_desktop_settings, null, null, null },
{ "phone-settings", activate_phone_settings, null, null, null },
};
MainLoop loop;
SimpleActionGroup actions;
HashTable menus;
Settings settings;
VolumeControl volume_control;
MediaPlayerList players;
uint player_action_update_id;
void activate_scroll_action (SimpleAction action, Variant? param) {
const double volume_step_percentage = 0.06;
int delta = param.get_int32(); /* positive for up, negative for down */
double v = this.volume_control.get_volume () + volume_step_percentage * delta;
if (v > 1.0)
v = 1.0;
else if (v < 0.0)
v = 0.0;
this.volume_control.set_volume (v);
}
void activate_desktop_settings (SimpleAction action, Variant? param) {
var env = Environment.get_variable ("DESKTOP_SESSION");
string cmd;
if (env == "unity")
cmd = "gnome-control-center sound-nua";
else if (env == "xubuntu" || env == "ubuntustudio")
cmd = "pavucontrol";
else
cmd = "gnome-control-center sound";
try {
Process.spawn_command_line_async (cmd);
} catch (Error e) {
warning ("unable to launch sound settings: %s", e.message);
}
}
void activate_phone_settings (SimpleAction action, Variant? param) {
try {
Process.spawn_command_line_async ("system-settings sound");
} catch (Error e) {
warning ("unable to launch sound settings: %s", e.message);
}
}
/* Returns a serialized version of @icon_name suited for the panel */
static Variant serialize_themed_icon (string icon_name)
{
var icon = new ThemedIcon.with_default_fallbacks (icon_name);
return g_icon_serialize (icon);
}
void update_root_icon () {
double volume = this.volume_control.get_volume ();
string icon;
if (this.volume_control.mute)
icon = "audio-volume-muted-panel";
else if (volume <= 0.0)
icon = "audio-volume-low-zero-panel";
else if (volume <= 0.3)
icon = "audio-volume-low-panel";
else if (volume <= 0.7)
icon = "audio-volume-medium-panel";
else
icon = "audio-volume-high-panel";
string accessible_name;
if (this.volume_control.mute) {
accessible_name = "Volume (muted)";
} else {
int volume_int = (int)(volume * 100);
accessible_name = @"Volume ($volume_int%)";
}
var root_action = actions.lookup_action ("root") as SimpleAction;
var builder = new VariantBuilder (new VariantType ("a{sv}"));
builder.add ("{sv}", "accessible-desc", new Variant.string (accessible_name));
builder.add ("{sv}", "icon", serialize_themed_icon (icon));
builder.add ("{sv}", "visible", new Variant.boolean (true));
root_action.set_state (builder.end());
}
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);
this.update_root_icon ();
});
return mute_action;
}
void volume_changed (double volume) {
var volume_action = this.actions.lookup_action ("volume") as SimpleAction;
volume_action.set_state (volume);
this.update_root_icon ();
}
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_changed);
this.volume_control.bind_property ("ready", volume_action, "enabled", BindingFlags.SYNC_CREATE);
return volume_action;
}
Action create_mic_volume_action () {
var volume_action = new SimpleAction.stateful ("mic-volume", null, this.volume_control.get_mic_volume ());
volume_action.change_state.connect ( (action, val) => {
volume_control.set_mic_volume (val.get_double ());
});
this.volume_control.mic_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);
} catch (Error e) {
critical ("%s", e.message);
}
this.menus.@foreach ( (profile, menu) => menu.export (connection, @"/com/canonical/indicator/sound/$profile"));
}
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));
builder.add ("{sv}", "state", new Variant ("s", player.state));
if (player.current_track != null) {
builder.add ("{sv}", "title", new Variant ("s", player.current_track.title));
builder.add ("{sv}", "artist", new Variant ("s", player.current_track.artist));
builder.add ("{sv}", "album", new Variant ("s", player.current_track.album));
builder.add ("{sv}", "art-url", new Variant ("s", player.current_track.art_url));
}
return builder.end ();
}
bool update_player_actions () {
foreach (var player in this.players) {
SimpleAction? action = this.actions.lookup_action (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 ("interested-media-players", builder.end ());
}
void player_added (MediaPlayer player) {
this.menus.@foreach ( (profile, menu) => menu.add_player (player));
SimpleAction action = new SimpleAction.stateful (player.id, null, this.action_state_for_player (player));
action.activate.connect ( () => { player.launch (); });
this.actions.add_action (action);
var play_action = new SimpleAction.stateful ("play." + player.id, null, player.state);
play_action.activate.connect ( () => player.play_pause () );
this.actions.add_action (play_action);
player.notify.connect ( (object, pspec) => {
if (pspec.name == "state")
play_action.set_state (player.state);
});
var next_action = new SimpleAction ("next." + player.id, null);
next_action.activate.connect ( () => player.next () );
this.actions.add_action (next_action);
var prev_action = new SimpleAction ("previous." + player.id, null);
prev_action.activate.connect ( () => player.previous () );
this.actions.add_action (prev_action);
var playlist_action = new SimpleAction ("play-playlist." + player.id, VariantType.STRING);
playlist_action.activate.connect ( (parameter) => player.activate_playlist_by_name (parameter.get_string ()) );
this.actions.add_action (playlist_action);
player.notify.connect (this.eventually_update_player_actions);
this.update_preferred_players ();
}
void player_removed (MediaPlayer player) {
this.actions.remove_action (player.id);
this.actions.remove_action ("play." + player.id);
this.actions.remove_action ("next." + player.id);
this.actions.remove_action ("previous." + player.id);
this.actions.remove_action ("play-playlist." + player.id);
this.menus.@foreach ( (profile, menu) => menu.remove_player (player));
this.update_preferred_players ();
}
}