gnome-shell/js/ui/status/volume.js
Giovanni Campagna d5bfc503fe Sound Menu: only show the slider
Reimplement UI without any indication of percentage or mutedness,
and whitout switches. The only interaction point is slider, but
it still supports mute changing for applications that track it,
and will react appropriately to external changes.

https://bugzilla.gnome.org/show_bug.cgi?id=634329
2010-11-19 23:13:32 +01:00

217 lines
8.4 KiB
JavaScript

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Clutter = imports.gi.Clutter;
const DBus = imports.dbus;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Shell = imports.gi.Shell;
const Gvc = imports.gi.Gvc;
const Signals = imports.signals;
const St = imports.gi.St;
const PanelMenu = imports.ui.panelMenu;
const PopupMenu = imports.ui.popupMenu;
const Gettext = imports.gettext.domain('gnome-shell');
const _ = Gettext.gettext;
const VOLUME_MAX = 65536.0; /* PA_VOLUME_NORM */
const VOLUME_ADJUSTMENT_STEP = 0.05; /* Volume adjustment step in % */
function Indicator() {
this._init.apply(this, arguments);
}
Indicator.prototype = {
__proto__: PanelMenu.SystemStatusButton.prototype,
_init: function() {
PanelMenu.SystemStatusButton.prototype._init.call(this, 'audio-volume-muted', null);
this._control = new Gvc.MixerControl({ name: 'GNOME Shell Volume Control' });
this._control.connect('ready', Lang.bind(this, this._onControlReady));
this._control.connect('default-sink-changed', Lang.bind(this, this._readOutput));
this._control.connect('default-source-changed', Lang.bind(this, this._readInput));
this._control.connect('stream-added', Lang.bind(this, this._maybeShowInput));
this._control.connect('stream-removed', Lang.bind(this, this._maybeShowInput));
this._output = null;
this._outputVolumeId = 0;
this._outputMutedId = 0;
this._outputTitle = new PopupMenu.PopupMenuItem(_("Volume"), { reactive: false });
this._outputSlider = new PopupMenu.PopupSliderMenuItem(0);
this._outputSlider.connect('value-changed', Lang.bind(this, this._sliderChanged, '_output'));
this._outputSlider.connect('drag-end', Lang.bind(this, this._notifyVolumeChange));
this.menu.addMenuItem(this._outputTitle);
this.menu.addMenuItem(this._outputSlider);
this._separator = new PopupMenu.PopupSeparatorMenuItem();
this.menu.addMenuItem(this._separator);
this._input = null;
this._inputVolumeId = 0;
this._inputMutedId = 0;
this._inputTitle = new PopupMenu.PopupMenuItem(_("Microphone"), { reactive: false });
this._inputSlider = new PopupMenu.PopupSliderMenuItem(0);
this._inputSlider.connect('value-changed', Lang.bind(this, this._sliderChanged, '_input'));
this._inputSlider.connect('drag-end', Lang.bind(this, this._notifyVolumeChange));
this.menu.addMenuItem(this._inputTitle);
this.menu.addMenuItem(this._inputSlider);
this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
this.menu.addAction(_("Sound Settings"), function() {
let p = new Shell.Process({ args: ['gnome-control-center', 'sound'] });
p.run();
});
this.actor.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
this._control.open();
},
_onScrollEvent: function(actor, event) {
let direction = event.get_scroll_direction();
let currentVolume = this._output.volume;
if (direction == Clutter.ScrollDirection.DOWN) {
let prev_muted = this._output.is_muted;
this._output.volume = Math.max(0, currentVolume - VOLUME_MAX * VOLUME_ADJUSTMENT_STEP);
if (this._output.volume < 1) {
this._output.volume = 0;
if (!prev_muted)
this._output.change_is_muted(true);
}
this._output.push_volume();
}
else if (direction == Clutter.ScrollDirection.UP) {
this._output.volume = Math.min(VOLUME_MAX, currentVolume + VOLUME_MAX * VOLUME_ADJUSTMENT_STEP);
this._output.change_is_muted(false);
this._output.push_volume();
}
},
_onControlReady: function() {
this._readOutput();
this._readInput();
},
_readOutput: function() {
if (this._outputVolumeId) {
this._output.disconnect(this._outputVolumeId);
this._output.disconnect(this._outputMutedId);
this._outputVolumeId = 0;
this._outputMutedId = 0;
}
this._output = this._control.get_default_sink();
if (this._output) {
this._outputMutedId = this._output.connect('notify::is-muted', Lang.bind(this, this._mutedChanged, '_output'));
this._outputVolumeId = this._output.connect('notify::volume', Lang.bind(this, this._volumeChanged, '_output'));
this._mutedChanged (null, null, '_output');
this._volumeChanged (null, null, '_output');
} else {
this._outputSlider.setValue(0);
this.setIcon('audio-volume-muted-symbolic');
}
},
_readInput: function() {
if (this._inputVolumeId) {
this._input.disconnect(this._inputVolumeId);
this._input.disconnect(this._inputMutedId);
this._inputVolumeId = 0;
this._inputMutedId = 0;
}
this._input = this._control.get_default_source();
if (this._input) {
this._inputMutedId = this._input.connect('notify::is-muted', Lang.bind(this, this._mutedChanged, '_input'));
this._inputVolumeId = this._input.connect('notify::volume', Lang.bind(this, this._volumeChanged, '_input'));
this._mutedChanged (null, null, '_input');
this._volumeChanged (null, null, '_input');
} else {
this._separator.actor.hide();
this._inputTitle.actor.hide();
this._inputSlider.actor.hide();
}
},
_maybeShowInput: function() {
// only show input widgets if any application is recording audio
let showInput = false;
let recordingApps = this._control.get_source_outputs();
if (this._input && recordingApps) {
for (let i = 0; i < recordingApps.length; i++) {
let outputStream = recordingApps[i];
let id = outputStream.get_application_id();
// but skip gnome-volume-control and pavucontrol
// (that appear as recording because they show the input level)
if (!id || (id != 'org.gnome.VolumeControl' && id != 'org.PulseAudio.pavucontrol')) {
showInput = true;
break;
}
}
}
if (showInput) {
this._separator.actor.show();
this._inputTitle.actor.show();
this._inputSlider.actor.show();
} else {
this._separator.actor.hide();
this._inputTitle.actor.hide();
this._inputSlider.actor.hide();
}
},
_volumeToIcon: function(volume) {
if (volume <= 0) {
return 'audio-volume-muted';
} else {
let v = volume / VOLUME_MAX;
if (v < 0.33)
return 'audio-volume-low';
if (v > 0.8)
return 'audio-volume-high';
return 'audio-volume-medium';
}
},
_sliderChanged: function(slider, value, property) {
if (this[property] == null) {
log ('Volume slider changed for %s, but %s does not exist'.format(property, property));
return;
}
let volume = value * VOLUME_MAX;
let prev_muted = this[property].is_muted;
if (volume < 1) {
this[property].volume = 0;
if (!prev_muted)
this[property].change_is_muted(true);
} else {
this[property].volume = volume;
if (prev_muted)
this[property].change_is_muted(false);
}
this[property].push_volume();
},
_notifyVolumeChange: function() {
global.play_theme_sound('audio-volume-change');
},
_mutedChanged: function(object, param_spec, property) {
let muted = this[property].is_muted;
let slider = this[property+'Slider'];
slider.setValue(muted ? 0 : (this[property].volume / VOLUME_MAX));
if (property == '_output') {
if (muted)
this.setIcon('audio-volume-muted');
else
this.setIcon(this._volumeToIcon(this._output.volume));
}
},
_volumeChanged: function(object, param_spec, property) {
this[property+'Slider'].setValue(this[property].volume / VOLUME_MAX);
if (property == '_output' && !this._output.is_muted)
this.setIcon(this._volumeToIcon(this._output.volume));
}
};