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/* # cpanel - whostmgr/docroot/templates/cpanel_customization/services/beforeUnloadService.js # Copyright 2022 cPanel, L.L.C. # All rights reserved. # copyright@cpanel.net http://cpanel.net # This code is subject to the cPanel license. Unauthorized copying is prohibited */ define([ "angular", ], function(angular) { "use strict"; /* * This service is used to send events when the window * onbeforeunload and onunload event happen. * * The service will broadcast the following events: * * onBeforeUnload - application code can register for this event on the scope. This * event can be used to prevent the unload using the `event.preventDefault()` technique. * Note, not all browsers will show the unload popup. Some also wont show it unless the * user has interacted with the form. Some browser will not use the custom message. * * onUnload - application code can register for this event on the scope. It can be used * to clean up any resources or cancel outstanding remote calls. You can not cancel the * unload from this event. */ angular.module("customize.services.beforeUnloadService", []) .factory("beforeUnload", [ "$rootScope", "$window", function($rootScope, $window) { /** * Handler for the browser onbeforeunload event. * * @param {Event} e * @returns {string|undefined} - A message to show the user when deciding if they want to cancel the unload. */ $rootScope.doBeforeUnload = function(e) { var config = {}; /** * @typedef {Config} * @property {string} prompt - the propt to tell the user. */ var event = $rootScope.$broadcast("onBeforeUnload", config); if (event.defaultPrevented) { e.preventDefault(); // Note: Some browsers will not show this message, but instead have their own. e.returnValue = config.prompt || ""; // For some Chrome browsers return config.prompt; } else { delete e["returnValue"]; // For some Chrome browsers return false; } }; /** * Handler for the browser unload event */ $rootScope.doUnload = function() { $rootScope.$broadcast("onUnload"); }; $window.addEventListener("beforeunload", $rootScope.doBeforeUnload); $window.addEventListener("onunload", $rootScope.doUnload); return {}; } ] ) .run(["beforeUnload", function(beforeUnload) { // Must invoke the service at least once } ] ); });
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