mail/src/js/loader.js

(function() {
	'use strict';

	/**
	 * The Template Loader. Used to asynchronously load templates located in separate .html files
	 */
	app.util.tpl = {

		// Hash of preloaded templates for the app
		templates: {},

		// Recursively pre-load all the templates for the app.
		loadTemplates: function(names, callback) {
			var that = this;

			var loadTemplate = function(index) {
				var name = names[index];
				console.log('Loading template: ' + name);
				$.get('tpl/' + name + '.html', function(data) {
					that.templates[name] = data;
					index++;
					if (index < names.length) {
						loadTemplate(index);
					} else {
						callback();
					}
				});
			};

			loadTemplate(0);
		},

		// Get template by name from hash of preloaded templates
		get: function(name) {
			return this.templates[name];
		}

	};

	/**
	 * Load templates and start the application
	 */
	$(document).ready(function() {
		// are we running in native app or in browser?
		var isBrowser = false;
		if (document.URL.indexOf("http://") !== -1) {
			isBrowser = true;
		}

		if (!isBrowser) {
			document.addEventListener("deviceready", onDeviceReady, false);
		} else {
			onDeviceReady();
		}

		function onDeviceReady() {
			console.log('Starting in Browser: ' + isBrowser);
			app.util.tpl.loadTemplates([
				'login',
				'compose',
				'folderlist',
				'messagelist',
				'messagelistitem',
				'read'], function() {
				var router = new app.Router();
				Backbone.history.start();
			});
		}
	});

}());