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// Copyright (c) 2012 Intel Corp
// Copyright (c) 2014 The Chromium Authors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell co
// pies of the Software, and to permit persons to whom the Software is furnished
// to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in al
// l copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IM
// PLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNES
// S FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
// OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WH
// ETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
var screenInstance = null;
function Screen() {
nw.allocateObject(this, {});
this._numListener = 0;
}
require('util').inherits(Screen, exports.Base);
// Override the addListener method.
Screen.prototype.on = Screen.prototype.addListener = function(ev, callback) {
if ( ev != "displayBoundsChanged" && ev != "displayAdded" && ev != "displayRemoved" )
throw new String('only following event can be listened: displayBoundsChanged, displayAdded, displayRemoved');
var onRemoveListener = function (type, listener) {
if (this._numListener > 0) {
this._numListener--;
if (this._numListener == 0) {
process.EventEmitter.prototype.removeListener.apply(this, ["removeListener", onRemoveListener]);
nw.callStaticMethodSync('Screen', 'RemoveScreenChangeCallback', [ this.id ]);
}
}
};
if(this._numListener == 0) {
if (nw.callStaticMethodSync('Screen', 'AddScreenChangeCallback', [ this.id ]) == false ) {
throw new String('nw.callStaticMethodSync(Screen, AddScreenChangeCallback) fails');
return;
}
process.EventEmitter.prototype.addListener.apply(this, ["removeListener", onRemoveListener]);
}
// Call parent.
process.EventEmitter.prototype.addListener.apply(this, arguments);
this._numListener++;
}
// Route events.
Screen.prototype.handleEvent = function(ev) {
arguments[1] = JSON.parse(arguments[1]);
// Call parent.
this.emit.apply(this, arguments);
}
Screen.prototype.__defineGetter__('screens', function() {
return JSON.parse(nw.callStaticMethodSync('Screen', 'GetScreens', [ ]));
});
// ======== Screen functions End ========
// Store App object in node's context.
exports.Screen = {
Init: function() {
if (screenInstance == null) {
screenInstance = new Screen();
}
exports.Screen = screenInstance;
return screenInstance;
}
};