Save stuff on angular onbeforeunload

gistfile1.js

angular.module('myapp')
.controller('MyController',['$rootScope',function($rootScope){
	$rootScope.$on('beforeunload',function(){
		//Save junk
	});
}).factory('onunload',['$rootScope',function($rootScope){
  window.onbeforeunload = function(e){ //Listen for events on the window
		$rootScope.$apply(function(){ //If we didn't do this through $apply, there woudl be no digest cycle and changes to the DOM would show up late
			$rootScope.$broadcast('beforeunload');  //Angular does pubsub via the $broadcast function available on scopes. $emit is similar
		});
  }
}).run(['onunload',function(onunload){}]) //The onunload service needs to be required into something to be run