Google Closure XPC demo

gistfile1.txt

goog.require('goog.Uri');
goog.require('goog.events');
goog.require('goog.json');
goog.require('goog.net.xpc.CrossPageChannel');

goog.global.initOuter = function(url) {
  goog.events.listen(window, 'load', function() { xpcdemo.initOuter(url); });
};
goog.global.initInner = function() {
  goog.events.listen(window, 'load', function() { xpcdemo.initInner(); });
};

var xpcdemo = {};

xpcdemo.initOuter = function(url) {

	var config = {};
	config[goog.net.xpc.CfgFields.PEER_URI] = url;
	xpcdemo.channel = new goog.net.xpc.CrossPageChannel(config);

	var echoService = function(payload) {
		alert('I heard: ' + payload);
	};
	xpcdemo.channel.registerService('echo', echoService);

	var iframeParent = document.body;
	var configureIframe = function(iframe) { iframe.style.display = 'none'; };
	xpcdemo.channel.createPeerIframe(iframeParent, configureIframe);
	xpcdemo.channel.connect(function() {
		alert('The parent is connected to the channel!');
		xpcdemo.channel.send('echoBack', 'Hello world from Parent!');
	});
	
};

xpcdemo.initInner = function() {
	var xpc = (new goog.Uri(window.location.href)).getParameterValue('xpc');
	if (xpc) {
		var config = goog.json.parse(xpc);
		var childChannel = new goog.net.xpc.CrossPageChannel(config);

		var connectCallback = function() {
			childChannel.send('echo', 'Hello world from Child!');
					}, 1000);
		};
			childChannel.connect(connectCallback);
			
		var echoBack = function(payload) {
			alert("I received payload: " + payload);
		}
		childChannel.registerService('echoBack', echoBack);
	} else {
		alert('No xpc parameter provided!');
	}
	
};

xpcdemo.push = function(url, payload) {
	xpcdemo.channel.send('echoBack', 'Hello world from Parent!' + payload);
}