gnome-shell/js/ui/status/volume.js
Ray Strode 13bf64a53d popupMenu: Use new convenience method for settings
All the system status menus in the panel offer a
menu item to jump to a relevant part of the
control-center.

This means each status icon has the same, or nearly the
same bit of code to:

- Add a new "action" menu item and listen for its activation.
- Hide the overview if it's showing when the menu item is activated
- Find the relevant control-center panel from its desktop file
- Launch the control-center to the relevant panel

This commit consolidates all those details in a new method,
addSettingsAction.  This refactoring reduces code duplication and
slight inconsistencies in the code resulting from that duplication.
It will also make it easier in subsequent commits to hide settings menu
items when the shell is used in the login screen.

https://bugzilla.gnome.org/show_bug.cgi?id=657082
2011-08-28 12:16:04 -04:00

231 lines
8.9 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 Main = imports.ui.main;
const PanelMenu = imports.ui.panelMenu;
const PopupMenu = imports.ui.popupMenu;
const Util = imports.misc.util;
const VOLUME_ADJUSTMENT_STEP = 0.05; /* Volume adjustment step in % */
const VOLUME_NOTIFY_ID = 1;
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('state-changed', Lang.bind(this, this._onControlStateChanged));
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._volumeMax = this._control.get_vol_max_norm();
this._volumeMaxAmplified = this._control.get_vol_max_amplified();
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.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
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.addSettingsAction(_("Sound Settings"), 'gnome-sound-panel.desktop');
this.actor.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
this._control.open();
},
_getMaxVolume: function(property) {
if (this[property].get_can_decibel())
return this._volumeMaxAmplified;
else
return this._volumeMax;
},
_onScrollEvent: function(actor, event) {
let direction = event.get_scroll_direction();
let currentVolume = this._output.volume;
let maxVolume = this._getMaxVolume('_output');
if (direction == Clutter.ScrollDirection.DOWN) {
let prev_muted = this._output.is_muted;
this._output.volume = Math.max(0, currentVolume - maxVolume * 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(maxVolume, currentVolume + maxVolume * VOLUME_ADJUSTMENT_STEP);
this._output.change_is_muted(false);
this._output.push_volume();
}
this._notifyVolumeChange();
},
_onControlStateChanged: function() {
if (this._control.get_state() == Gvc.MixerControlState.READY) {
this._readOutput();
this._readInput();
this.actor.show();
} else {
this.actor.hide();
}
},
_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._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._inputTitle.actor.show();
this._inputSlider.actor.show();
} else {
this._inputTitle.actor.hide();
this._inputSlider.actor.hide();
}
},
_volumeToIcon: function(volume) {
let maxVolume = this._getMaxVolume('_output');
if (volume <= 0) {
return 'audio-volume-muted';
} else {
let n = Math.floor(3 * volume / maxVolume) + 1;
if (n < 2)
return 'audio-volume-low';
if (n >= 3)
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 * this._getMaxVolume(property);
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.cancel_theme_sound(VOLUME_NOTIFY_ID);
global.play_theme_sound(VOLUME_NOTIFY_ID, 'audio-volume-change');
},
_mutedChanged: function(object, param_spec, property) {
let muted = this[property].is_muted;
let slider = this[property+'Slider'];
let maxVolume = this._getMaxVolume(property);
slider.setValue(muted ? 0 : (this[property].volume / maxVolume));
if (property == '_output') {
if (muted)
this.setIcon('audio-volume-muted');
else
this.setIcon(this._volumeToIcon(this._output.volume));
}
},
_volumeChanged: function(object, param_spec, property) {
let maxVolume = this._getMaxVolume(property);
this[property+'Slider'].setValue(this[property].volume / maxVolume);
if (property == '_output' && !this._output.is_muted)
this.setIcon(this._volumeToIcon(this._output.volume));
}
};