Dart: Updated base.js

architecture-examples/dart/web/assets/base.js

-(function( window ) {
+(function () {
 	'use strict';
 
-	if ( location.hostname === 'todomvc.com' ) {
+	if (location.hostname === 'todomvc.com') {
 		var _gaq=[['_setAccount','UA-31081062-1'],['_trackPageview']];(function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];g.src='//www.google-analytics.com/ga.js';s.parentNode.insertBefore(g,s)}(document,'script'));
 	}
-})( window );
+
+	function getSourcePath() {
+		// If accessed via addyosmani.github.com/todomvc/, strip the project
+		// path.
+		if (location.hostname.indexOf('github.com') > 0) {
+			return location.pathname.replace(/todomvc\//, '');
+		}
+		return location.pathname;
+	}
+
+	function appendSourceLink() {
+		var sourceLink = document.createElement('a');
+		var paragraph = document.createElement('p');
+		var footer = document.getElementById('info');
+		var urlBase = 'https://github.com/addyosmani/todomvc/tree/gh-pages';
+
+		if (footer) {
+			sourceLink.href = urlBase + getSourcePath();
+			sourceLink.appendChild(document.createTextNode('Check out the source'));
+			paragraph.appendChild(sourceLink);
+			footer.appendChild(paragraph);
+		}
+	}
+
+	function redirect() {
+		if (location.hostname === 'addyosmani.github.com') {
+			location.href = location.href.replace('addyosmani.github.com/todomvc',
+												  'todomvc.com');
+		}
+	}
+
+	appendSourceLink();
+	redirect();
+})();