gnome-shell/js/misc/screenSaver.js

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/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const DBus = imports.dbus;
const Lang = imports.lang;
const Signals = imports.signals;
const ScreenSaverIface = {
name: 'org.gnome.ScreenSaver',
methods: [{ name: 'GetActive',
inSignature: '',
outSignature: 'b' },
{ name: 'Lock',
inSignature: '' },
{ name: 'SetActive',
inSignature: 'b' }],
signals: [{ name: 'ActiveChanged',
inSignature: 'b' }]
};
function ScreenSaverProxy() {
this._init();
}
ScreenSaverProxy.prototype = {
_init: function() {
DBus.session.proxifyObject(this,
'org.gnome.ScreenSaver',
'/org/gnome/ScreenSaver');
DBus.session.watch_name('org.gnome.ScreenSaver',
false, // do not launch a name-owner if none exists
Lang.bind(this, this._onSSAppeared),
Lang.bind(this, this._onSSVanished));
this.connect('ActiveChanged',
Lang.bind(this, this._onActiveChanged));
},
_onSSAppeared: function(owner) {
this.GetActiveRemote(Lang.bind(this, function(isActive) {
this._screenSaverActive = isActive;
}))
},
_onSSVanished: function(oldOwner) {
this._screenSaverActive = false;
},
_onActiveChanged: function(object, isActive) {
this._screenSaverActive = isActive;
this.emit('active-changed', this._screenSaverActive);
},
getActive: function() {
return this._screenSaverActive;
}
};
DBus.proxifyPrototype(ScreenSaverProxy.prototype, ScreenSaverIface);
Signals.addSignalMethods(ScreenSaverProxy.prototype);