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A simple AngularJS service for handling the 'onbeforeunload' event
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| <!DOCTYPE html> | |
| <html data-ng-app="TestApp"> | |
| <head> | |
| <script src="http://code.angularjs.org/1.2.9/angular.js"></script> | |
| <script> | |
| angular.module('TestApp', []) | |
| .factory('beforeUnload', function ($rootScope, $window) { | |
| // Events are broadcast outside the Scope Lifecycle | |
| $window.onbeforeunload = function (e) { | |
| var confirmation = {}; | |
| var event = $rootScope.$broadcast('onBeforeUnload', confirmation); | |
| if (event.defaultPrevented) { | |
| return confirmation.message; | |
| } | |
| }; | |
| $window.onunload = function () { | |
| $rootScope.$broadcast('onUnload'); | |
| }; | |
| return {}; | |
| }) | |
| .run(function (beforeUnload) { | |
| // Must invoke the service at least once | |
| }); | |
| function TestController($scope) { | |
| $scope.$on('onBeforeUnload', function (e, confirmation) { | |
| confirmation.message = "All data willl be lost."; | |
| e.preventDefault(); | |
| }); | |
| $scope.$on('onUnload', function (e) { | |
| console.log('leaving page'); // Use 'Preserve Log' option in Console | |
| }); | |
| } | |
| </script> | |
| </head> | |
| <body data-ng-controller="TestController"> | |
| This is a test | |
| <a href="http://www.google.com/">Google</a> | |
| </body> | |
| </html> |
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It doesn't work consistently in all IE versions and on Chrome when closing the tab, I think is an issue with the event itself, but it works fine in all browsers if used as an attribute of the "body" DOM.