223 lines
8.8 KiB
JavaScript
223 lines
8.8 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
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const Clutter = imports.gi.Clutter;
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const DBus = imports.dbus;
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const Lang = imports.lang;
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const Mainloop = imports.mainloop;
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const Shell = imports.gi.Shell;
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const Gvc = imports.gi.Gvc;
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const Signals = imports.signals;
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const St = imports.gi.St;
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const PanelMenu = imports.ui.panelMenu;
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const PopupMenu = imports.ui.popupMenu;
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const Gettext = imports.gettext.domain('gnome-shell');
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const _ = Gettext.gettext;
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const VOLUME_MAX = 65536.0; /* PA_VOLUME_NORM */
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const VOLUME_ADJUSTMENT_STEP = 0.05; /* Volume adjustment step in % */
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function Indicator() {
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this._init.apply(this, arguments);
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}
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Indicator.prototype = {
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__proto__: PanelMenu.SystemStatusButton.prototype,
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_init: function() {
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PanelMenu.SystemStatusButton.prototype._init.call(this, 'audio-volume-muted', null);
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this._control = new Gvc.MixerControl({ name: 'GNOME Shell Volume Control' });
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this._control.connect('ready', Lang.bind(this, this._onControlReady));
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this._control.connect('default-sink-changed', Lang.bind(this, this._readOutput));
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this._control.connect('default-source-changed', Lang.bind(this, this._readInput));
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this._control.connect('stream-added', Lang.bind(this, this._maybeShowInput));
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this._control.connect('stream-removed', Lang.bind(this, this._maybeShowInput));
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this._output = null;
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this._outputVolumeId = 0;
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this._outputMutedId = 0;
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this._outputSwitch = new PopupMenu.PopupSwitchMenuItem(_("Volume: Muted"), false);
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this._outputSwitch.connect('toggled', Lang.bind(this, this._switchToggled, '_output'));
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this._outputSlider = new PopupMenu.PopupSliderMenuItem(0);
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this._outputSlider.connect('value-changed', Lang.bind(this, this._sliderChanged, '_output'));
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this._outputSlider.connect('drag-end', Lang.bind(this, this._notifyVolumeChange));
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this.menu.addMenuItem(this._outputSwitch);
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this.menu.addMenuItem(this._outputSlider);
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this._separator = new PopupMenu.PopupSeparatorMenuItem();
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this.menu.addMenuItem(this._separator);
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this._input = null;
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this._inputVolumeId = 0;
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this._inputMutedId = 0;
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this._inputSwitch = new PopupMenu.PopupSwitchMenuItem(_("Microphone: Muted"), false);
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this._inputSwitch.connect('toggled', Lang.bind(this, this._switchToggled, '_input'));
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this._inputSlider = new PopupMenu.PopupSliderMenuItem(0);
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this._inputSlider.connect('value-changed', Lang.bind(this, this._sliderChanged, '_input'));
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this._inputSlider.connect('drag-end', Lang.bind(this, this._notifyVolumeChange));
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this.menu.addMenuItem(this._inputSwitch);
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this.menu.addMenuItem(this._inputSlider);
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this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
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this.menu.addAction(_("Sound Settings"), function() {
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let p = new Shell.Process({ args: ['gnome-control-center', 'sound'] });
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p.run();
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});
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this.actor.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
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this._control.open();
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},
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_onScrollEvent: function(actor, event) {
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let direction = event.get_scroll_direction();
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let currentVolume = this._output.volume;
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if (direction == Clutter.ScrollDirection.DOWN) {
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this._output.volume = Math.max(0, currentVolume - VOLUME_MAX * VOLUME_ADJUSTMENT_STEP);
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this._output.push_volume();
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}
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else if (direction == Clutter.ScrollDirection.UP) {
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this._output.volume = Math.min(VOLUME_MAX, currentVolume + VOLUME_MAX * VOLUME_ADJUSTMENT_STEP);
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this._output.push_volume();
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}
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},
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_onControlReady: function() {
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this._readOutput();
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this._readInput();
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},
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_readOutput: function() {
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if (this._outputVolumeId) {
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this._output.disconnect(this._outputVolumeId);
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this._output.disconnect(this._outputMutedId);
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this._outputVolumeId = 0;
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this._outputMutedId = 0;
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}
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this._output = this._control.get_default_sink();
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if (this._output) {
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this._outputMutedId = this._output.connect('notify::is-muted', Lang.bind(this, this._mutedChanged, '_output'));
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this._outputVolumeId = this._output.connect('notify::volume', Lang.bind(this, this._volumeChanged, '_output'));
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this._mutedChanged (null, null, '_output');
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this._volumeChanged (null, null, '_output');
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} else {
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this._outputSwitch.label.text = _("Volume: Muted");
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this._outputSwitch.setToggleState(false);
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this.setIcon('audio-volume-muted-symbolic');
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}
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},
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_readInput: function() {
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if (this._inputVolumeId) {
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this._input.disconnect(this._inputVolumeId);
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this._input.disconnect(this._inputMutedId);
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this._inputVolumeId = 0;
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this._inputMutedId = 0;
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}
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this._input = this._control.get_default_source();
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if (this._input) {
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this._inputMutedId = this._input.connect('notify::is-muted', Lang.bind(this, this._mutedChanged, '_input'));
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this._inputVolumeId = this._input.connect('notify::volume', Lang.bind(this, this._volumeChanged, '_input'));
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this._mutedChanged (null, null, '_input');
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this._volumeChanged (null, null, '_input');
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} else {
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this._separator.actor.hide();
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this._inputSwitch.actor.hide();
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this._inputSlider.actor.hide();
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}
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},
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_maybeShowInput: function() {
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// only show input widgets if any application is recording audio
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let showInput = false;
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let recordingApps = this._control.get_source_outputs();
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if (this._input && recordingApps) {
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for (let i = 0; i < recordingApps.length; i++) {
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let outputStream = recordingApps[i];
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let id = outputStream.get_application_id();
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// but skip gnome-volume-control and pavucontrol
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// (that appear as recording because they show the input level)
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if (!id || (id != 'org.gnome.VolumeControl' && id != 'org.PulseAudio.pavucontrol')) {
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showInput = true;
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break;
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}
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}
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}
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if (showInput) {
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this._separator.actor.show();
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this._inputSwitch.actor.show();
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this._inputSlider.actor.show();
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} else {
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this._separator.actor.hide();
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this._inputSwitch.actor.hide();
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this._inputSlider.actor.hide();
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}
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},
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_volumeToIcon: function(volume) {
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if (volume <= 0) {
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return 'audio-volume-muted';
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} else {
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let v = volume / VOLUME_MAX;
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if (v < 0.33)
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return 'audio-volume-low';
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if (v > 0.8)
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return 'audio-volume-high';
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return 'audio-volume-medium';
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}
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},
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_sliderChanged: function(slider, value, property) {
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if (this[property] == null) {
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log ('Volume slider changed for %s, but %s does not exist'.format(property, property));
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return;
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}
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this[property].volume = value * VOLUME_MAX;
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this[property].push_volume();
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},
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_notifyVolumeChange: function() {
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global.play_theme_sound('audio-volume-change');
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},
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_switchToggled: function(switchItem, state, property) {
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if (this[property] == null) {
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log ('Volume mute switch toggled for %s, but %s does not exist'.format(property, property));
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return;
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}
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this[property].change_is_muted(!state);
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this._notifyVolumeChange();
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},
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_mutedChanged: function(object, param_spec, property) {
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let muted = this[property].is_muted;
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let toggleSwitch = this[property+'Switch'];
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toggleSwitch.setToggleState(!muted);
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this._updateLabel(property);
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if (property == '_output') {
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if (muted)
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this.setIcon('audio-volume-muted');
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else
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this.setIcon(this._volumeToIcon(this._output.volume));
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}
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},
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_volumeChanged: function(object, param_spec, property) {
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this[property+'Slider'].setValue(this[property].volume / VOLUME_MAX);
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this._updateLabel(property);
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if (property == '_output' && !this._output.is_muted)
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this.setIcon(this._volumeToIcon(this._output.volume));
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},
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_updateLabel: function(property) {
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let label;
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if (this[property].is_muted)
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label = (property == '_output' ? _("Volume: Muted") : _("Microphone: Muted"));
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else
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label = (property == '_output' ? _("Volume: %3.0f%%") : _("Microphone: %3.0f%%")).format(this[property].volume / VOLUME_MAX * 100);
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this[property+'Switch'].label.text = label;
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}
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};
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