mail/src/index.js

require(['jquery', 'js/app-controller', 'js/app-config'], function($, controller, app) {
	'use strict';

	chrome.identity.getAuthToken({
		'interactive': true
	}, function(token) {
		console.log(token);
		// Use the token.
	});

	/**
	 * Load templates and start the application
	 */
	$(document).ready(function() {
		controller.init(function() {
			controller.start(startApp);
		});
	});

	function startApp() {
		// sandboxed ui in iframe
		var sandbox = document.getElementById('sandboxFrame').contentWindow;

		// set global listener for events from sandbox
		window.onmessage = function(e) {
			var cmd = e.data.cmd;
			var args = e.data.args;

			// handle the workload in the main window
			controller.execute(cmd, args, function(resArgs) {
				// send reponse to sandbox
				sandbox.postMessage({
					cmd: cmd,
					args: resArgs
				}, '*');
			});
		};

		// init sandbox ui
		sandbox.postMessage({
			cmd: 'init',
			args: app.util.tpl.templates
		}, '*');
	}

});