mixer.js

   1 // extension.js
   2 // vi: et sw=2
   3 //
   4 // Advanced Volume Mixer
   5 // Control programs' volume from gnome volume mixer applet.
   6 //
   7 // Author: Harry Karvonen <harry.karvonen@gmail.com>
   8 //
   9
  10 const Clutter = imports.gi.Clutter;
  11 const Lang = imports.lang;
  12 const Gvc = imports.gi.Gvc;
  13 const St = imports.gi.St;
  14
  15 const Main = imports.ui.main;
  16 const PopupMenu = imports.ui.popupMenu;
  17
  18 const Volume = imports.ui.status.volume;
  19
  20 const AVM = imports.misc.extensionUtils.getCurrentExtension();
  21 const Widget = AVM.imports.widget;
  22 const Settings = AVM.imports.settings;
  23 const Panel = AVM.imports.panel;
  24
  25 const AdvancedVolumeMixer = new Lang.Class({
  26   Name: "AdvancedVolumeMixer",
  27   Extends: PopupMenu.PopupMenuSection,
  28
  29   _init: function() {
  30     this.parent();
  31
  32     this.hasHeadphones = false;
  33
  34     this._control = Volume.getMixerControl();
  35     this._sinks = {};
  36     this._outputs = {};
  37     this._settings = Settings.gsettings;
  38
  39     log("AdvVolumeMixer init");
  40     log(this._control.get_vol_max_norm());
  41     log(this._settings.get_enum("position"));
  42
  43     this._control.connect(
  44       "state-changed",
  45       Lang.bind(this, this._onControlStateChanged)
  46     );
  47     this._control.connect(
  48       "default-sink-changed",
  49       Lang.bind(this, this._readOutput));
  50     this._control.connect(
  51       "default-source-changed",
  52       Lang.bind(this, this._readInput)
  53     );
  54     this._control.connect(
  55       "stream-added",
  56       Lang.bind(this, this._streamAdded)
  57     );
  58     this._control.connect(
  59       "stream-removed",
  60       Lang.bind(this, this._streamRemoved)
  61     );
  62
  63     this._output = null;
  64
  65     if (this._settings.get_enum("output-type") == 0) {
  66       this._output = new Volume.OutputStreamSlider(this._control);
  67     } else {
  68       this._output = new Widget.AppOutputStreamSlider(this._control);
  69     }
  70     this._output.connect('stream-updated', Lang.bind(this, function() {
  71       this.emit('icon-changed');
  72     }));
  73
  74     this._input = new Volume.InputStreamSlider(this._control);
  75     this._separator = new PopupMenu.PopupSeparatorMenuItem();
  76
  77     this.addMenuItem(this._output.item);
  78     this.addMenuItem(this._input.item);
  79     this.addMenuItem(this._separator);
  80
  81     this._onControlStateChanged();
  82   },
  83
  84   scroll: function(event) {
  85     this._output.scroll(event);
  86   },
  87
  88   separatorLastItem: function(last) {
  89     log("separatorLastItem");
  90     log(last);
  91
  92     this._separator.destroy();
  93     this._separator = new PopupMenu.PopupSeparatorMenuItem();
  94
  95     if (last) {
  96       this.addMenuItem(this._separator, 999);
  97     } else {
  98       this.addMenuItem(this._separator, 2);
  99     }
 100   },
 101
 102   _streamAdded: function(control, id) {
 103     if (id in this._sinks) {
 104       return;
 105     }
 106
 107     if (id in this._outputs) {
 108       return;
 109     }
 110
 111     let stream = control.lookup_stream_id(id);
 112
 113     if (stream["is-event-stream"]) {
 114       // Do nothing
 115     } else if (stream instanceof Gvc.MixerSinkInput) {
 116       let s = new Widget.AppOutputStreamSlider(this._control);
 117       s.stream = stream;
 118       this._sinks[id] = s;
 119       this.addMenuItem(s.item);
 120     } else if (stream instanceof Gvc.MixerSink) {
 121       let s = new Volume.OutputStreamSlider(this._control);
 122       s.stream = stream;
 123       this._outputs[id] = s;
 124     }
 125   },
 126
 127   _streamRemoved: function(control, id) {
 128     if (id in this._sinks) {
 129       this._sinks[id].item.destroy();
 130       delete this._sinks[id];
 131     } else if (id in this._outputs) {
 132       this._outputs[id].item.destroy();
 133       delete this._outputs[id];
 134     }
 135   },
 136
 137   _onControlStateChanged: function() {
 138     if (this._control.get_state() == Gvc.MixerControlState.READY) {
 139       this._readInput();
 140       this._readOutput();
 141
 142       let streams = this._control.get_streams();
 143       for (let i = 0; i < streams.length; i++) {
 144         this._streamAdded(this._control, streams[i].id);
 145       }
 146     }
 147
 148     this.emit('icon-changed');
 149   },
 150
 151   _readOutput: function() {
 152     this._output.stream = this._control.get_default_sink();
 153   },
 154
 155   _readInput: function() {
 156     this._input.stream = this._control.get_default_source();
 157   },
 158
 159   getIcon: function() {
 160     return this._output.getIcon();
 161   }
 162 });
 163