gnome-shell/js/ui/status/volume.js
Florian Müllner 7e23875bc4 status/volume: Unmute to default volume when at 0
The stream can be muted by clicking the icon, or by dragging the
slider to 0. In the latter case, clicking the icon to unmute the
stream will not do anything (at least apparently).

Settings addresses this in its Sound panel by using a default
volume of 25% in that case, so do the same in the Shell.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6393

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2644>
2023-02-14 21:28:44 +00:00

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported Indicator */
const {Clutter, Gio, GLib, GObject, Gvc} = imports.gi;
const Main = imports.ui.main;
const PopupMenu = imports.ui.popupMenu;
const {QuickSlider, SystemIndicator} = imports.ui.quickSettings;
const ALLOW_AMPLIFIED_VOLUME_KEY = 'allow-volume-above-100-percent';
const UNMUTE_DEFAULT_VOLUME = 0.25;
// Each Gvc.MixerControl is a connection to PulseAudio,
// so it's better to make it a singleton
let _mixerControl;
/**
* @returns {Gvc.MixerControl} - the mixer control singleton
*/
function getMixerControl() {
if (_mixerControl)
return _mixerControl;
_mixerControl = new Gvc.MixerControl({ name: 'GNOME Shell Volume Control' });
_mixerControl.open();
return _mixerControl;
}
const StreamSlider = GObject.registerClass({
Signals: {
'stream-updated': {},
},
}, class StreamSlider extends QuickSlider {
_init(control) {
super._init({
icon_reactive: true,
});
this._control = control;
this._inDrag = false;
this._notifyVolumeChangeId = 0;
this._soundSettings = new Gio.Settings({
schema_id: 'org.gnome.desktop.sound',
});
this._soundSettings.connect(`changed::${ALLOW_AMPLIFIED_VOLUME_KEY}`,
() => this._amplifySettingsChanged());
this._amplifySettingsChanged();
this._sliderChangedId = this.slider.connect('notify::value',
() => this._sliderChanged());
this.slider.connect('drag-begin', () => (this._inDrag = true));
this.slider.connect('drag-end', () => {
this._inDrag = false;
this._notifyVolumeChange();
});
this.connect('icon-clicked', () => {
if (!this._stream)
return;
const {isMuted} = this._stream;
if (isMuted && this._stream.volume === 0) {
this._stream.volume =
UNMUTE_DEFAULT_VOLUME * this._control.get_vol_max_norm();
this._stream.push_volume();
}
this._stream.change_is_muted(!isMuted);
});
this._deviceItems = new Map();
this._deviceSection = new PopupMenu.PopupMenuSection();
this.menu.addMenuItem(this._deviceSection);
this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
this.menu.addSettingsAction(_('Sound Settings'),
'gnome-sound-panel.desktop');
this._stream = null;
this._volumeCancellable = null;
this._icons = [];
this._sync();
}
get stream() {
return this._stream;
}
set stream(stream) {
this._stream?.disconnectObject(this);
this._stream = stream;
if (this._stream) {
this._connectStream(this._stream);
this._updateVolume();
} else {
this.emit('stream-updated');
}
this._sync();
}
_connectStream(stream) {
stream.connectObject(
'notify::is-muted', this._updateVolume.bind(this),
'notify::volume', this._updateVolume.bind(this), this);
}
_lookupDevice(_id) {
throw new GObject.NotImplementedError(
`_lookupDevice in ${this.constructor.name}`);
}
_activateDevice(_device) {
throw new GObject.NotImplementedError(
`_activateDevice in ${this.constructor.name}`);
}
_addDevice(id) {
if (this._deviceItems.has(id))
return;
const device = this._lookupDevice(id);
if (!device)
return;
const {description, origin} = device;
const name = origin
? `${description} ${origin}`
: description;
const item = new PopupMenu.PopupImageMenuItem(name, device.get_gicon());
item.connect('activate', () => this._activateDevice(device));
this._deviceSection.addMenuItem(item);
this._deviceItems.set(id, item);
this._sync();
}
_removeDevice(id) {
this._deviceItems.get(id)?.destroy();
if (this._deviceItems.delete(id))
this._sync();
}
_setActiveDevice(activeId) {
for (const [id, item] of this._deviceItems) {
item.setOrnament(id === activeId
? PopupMenu.Ornament.CHECK
: PopupMenu.Ornament.NONE);
}
}
_shouldBeVisible() {
return this._stream != null;
}
_sync() {
this.visible = this._shouldBeVisible();
this.menuEnabled = this._deviceItems.size > 1;
}
_sliderChanged() {
if (!this._stream)
return;
let value = this.slider.value;
let volume = value * this._control.get_vol_max_norm();
let prevMuted = this._stream.is_muted;
let prevVolume = this._stream.volume;
if (volume < 1) {
this._stream.volume = 0;
if (!prevMuted)
this._stream.change_is_muted(true);
} else {
this._stream.volume = volume;
if (prevMuted)
this._stream.change_is_muted(false);
}
this._stream.push_volume();
let volumeChanged = this._stream.volume !== prevVolume;
if (volumeChanged && !this._notifyVolumeChangeId && !this._inDrag) {
this._notifyVolumeChangeId = GLib.timeout_add(GLib.PRIORITY_DEFAULT, 30, () => {
this._notifyVolumeChange();
this._notifyVolumeChangeId = 0;
return GLib.SOURCE_REMOVE;
});
GLib.Source.set_name_by_id(this._notifyVolumeChangeId,
'[gnome-shell] this._notifyVolumeChangeId');
}
}
_notifyVolumeChange() {
if (this._volumeCancellable)
this._volumeCancellable.cancel();
this._volumeCancellable = null;
if (this._stream.state === Gvc.MixerStreamState.RUNNING)
return; // feedback not necessary while playing
this._volumeCancellable = new Gio.Cancellable();
let player = global.display.get_sound_player();
player.play_from_theme('audio-volume-change',
_('Volume changed'), this._volumeCancellable);
}
_changeSlider(value) {
this.slider.block_signal_handler(this._sliderChangedId);
this.slider.value = value;
this.slider.unblock_signal_handler(this._sliderChangedId);
}
_updateVolume() {
let muted = this._stream.is_muted;
this._changeSlider(muted
? 0 : this._stream.volume / this._control.get_vol_max_norm());
this.iconLabel = muted ? _('Unmute') : _('Mute');
this._updateIcon();
this.emit('stream-updated');
}
_amplifySettingsChanged() {
this._allowAmplified = this._soundSettings.get_boolean(ALLOW_AMPLIFIED_VOLUME_KEY);
this.slider.maximum_value = this._allowAmplified
? this.getMaxLevel() : 1;
if (this._stream)
this._updateVolume();
}
_updateIcon() {
this.iconName = this.getIcon();
}
getIcon() {
if (!this._stream)
return null;
let volume = this._stream.volume;
let n;
if (this._stream.is_muted || volume <= 0) {
n = 0;
} else {
n = Math.ceil(3 * volume / this._control.get_vol_max_norm());
n = Math.clamp(n, 1, this._icons.length - 1);
}
return this._icons[n];
}
getLevel() {
if (!this._stream)
return null;
return this._stream.volume / this._control.get_vol_max_norm();
}
getMaxLevel() {
let maxVolume = this._control.get_vol_max_norm();
if (this._allowAmplified)
maxVolume = this._control.get_vol_max_amplified();
return maxVolume / this._control.get_vol_max_norm();
}
});
const OutputStreamSlider = GObject.registerClass(
class OutputStreamSlider extends StreamSlider {
_init(control) {
super._init(control);
this.slider.accessible_name = _('Volume');
this._control.connectObject(
'output-added', (c, id) => this._addDevice(id),
'output-removed', (c, id) => this._removeDevice(id),
'active-output-update', (c, id) => this._setActiveDevice(id),
this);
this._icons = [
'audio-volume-muted-symbolic',
'audio-volume-low-symbolic',
'audio-volume-medium-symbolic',
'audio-volume-high-symbolic',
'audio-volume-overamplified-symbolic',
];
this.menu.setHeader('audio-headphones-symbolic', _('Sound Output'));
}
_connectStream(stream) {
super._connectStream(stream);
stream.connectObject('notify::port',
this._portChanged.bind(this), this);
this._portChanged();
}
_lookupDevice(id) {
return this._control.lookup_output_id(id);
}
_activateDevice(device) {
this._control.change_output(device);
}
_findHeadphones(sink) {
// This only works for external headphones (e.g. bluetooth)
if (sink.get_form_factor() == 'headset' ||
sink.get_form_factor() == 'headphone')
return true;
// a bit hackish, but ALSA/PulseAudio have a number
// of different identifiers for headphones, and I could
// not find the complete list
if (sink.get_ports().length > 0)
return sink.get_port().port.includes('headphone');
return false;
}
_portChanged() {
const hasHeadphones = this._findHeadphones(this._stream);
if (hasHeadphones === this._hasHeadphones)
return;
this._hasHeadphones = hasHeadphones;
this._updateIcon();
}
_updateIcon() {
this.iconName = this._hasHeadphones
? 'audio-headphones-symbolic'
: this.getIcon();
}
});
const InputStreamSlider = GObject.registerClass(
class InputStreamSlider extends StreamSlider {
_init(control) {
super._init(control);
this.slider.accessible_name = _('Microphone');
this._control.connectObject(
'input-added', (c, id) => this._addDevice(id),
'input-removed', (c, id) => this._removeDevice(id),
'active-input-update', (c, id) => this._setActiveDevice(id),
'stream-added', () => this._maybeShowInput(),
'stream-removed', () => this._maybeShowInput(),
this);
this.iconName = 'audio-input-microphone-symbolic';
this._icons = [
'microphone-sensitivity-muted-symbolic',
'microphone-sensitivity-low-symbolic',
'microphone-sensitivity-medium-symbolic',
'microphone-sensitivity-high-symbolic',
];
this.menu.setHeader('audio-input-microphone-symbolic', _('Sound Input'));
}
_connectStream(stream) {
super._connectStream(stream);
this._maybeShowInput();
}
_lookupDevice(id) {
return this._control.lookup_input_id(id);
}
_activateDevice(device) {
this._control.change_input(device);
}
_maybeShowInput() {
// only show input widgets if any application is recording audio
let showInput = false;
if (this._stream) {
// skip gnome-volume-control and pavucontrol which appear
// as recording because they show the input level
let skippedApps = [
'org.gnome.VolumeControl',
'org.PulseAudio.pavucontrol',
];
showInput = this._control.get_source_outputs().some(
output => !skippedApps.includes(output.get_application_id()));
}
this._showInput = showInput;
this._sync();
}
_shouldBeVisible() {
return super._shouldBeVisible() && this._showInput;
}
});
var Indicator = GObject.registerClass(
class Indicator extends SystemIndicator {
_init() {
super._init();
this._primaryIndicator = this._addIndicator();
this._inputIndicator = this._addIndicator();
this._primaryIndicator.reactive = true;
this._inputIndicator.reactive = true;
this._primaryIndicator.connect('scroll-event',
(actor, event) => this._handleScrollEvent(this._output, event));
this._inputIndicator.connect('scroll-event',
(actor, event) => this._handleScrollEvent(this._input, event));
this._control = getMixerControl();
this._control.connectObject(
'state-changed', () => this._onControlStateChanged(),
'default-sink-changed', () => this._readOutput(),
'default-source-changed', () => this._readInput(),
this);
this._output = new OutputStreamSlider(this._control);
this._output.connect('stream-updated', () => {
const icon = this._output.getIcon();
if (icon)
this._primaryIndicator.icon_name = icon;
this._primaryIndicator.visible = icon !== null;
});
this._input = new InputStreamSlider(this._control);
this._input.connect('stream-updated', () => {
const icon = this._input.getIcon();
if (icon)
this._inputIndicator.icon_name = icon;
});
this._input.bind_property('visible',
this._inputIndicator, 'visible',
GObject.BindingFlags.SYNC_CREATE);
this.quickSettingsItems.push(this._output);
this.quickSettingsItems.push(this._input);
this._onControlStateChanged();
}
_onControlStateChanged() {
if (this._control.get_state() === Gvc.MixerControlState.READY) {
this._readInput();
this._readOutput();
} else {
this._primaryIndicator.hide();
}
}
_readOutput() {
this._output.stream = this._control.get_default_sink();
}
_readInput() {
this._input.stream = this._control.get_default_source();
}
_handleScrollEvent(item, event) {
const result = item.slider.scroll(event);
if (result === Clutter.EVENT_PROPAGATE || item.mapped)
return result;
const gicon = new Gio.ThemedIcon({name: item.getIcon()});
const level = item.getLevel();
const maxLevel = item.getMaxLevel();
Main.osdWindowManager.show(-1, gicon, null, level, maxLevel);
return result;
}
});