如果用户刷新页面或关闭浏览器/浏览器选项卡,有什么方法可以触发吗?(我想在AngularJS/JavaScript中触发它)。对此有什么想法吗?
现在我只知道当前页面何时使用以下代码关闭:
var myEvent = window.attachEvent || window.addEventListener;
var chkevent = window.attachEvent ? 'onbeforeunload' : 'beforeunload'; /// make IE7, IE8 compatable
myEvent(chkevent, function (e) { // For >=IE7, Chrome, Firefox
var confirmationMessage = ' '; // a space
(e || window.event).returnValue = "Are you sure that you'd like to close the browser?";
return confirmationMessage;
});
您的指令可能如下所示:
myApp.directive('myDirective', function() {
return function($window) {
var myEvent = $window.attachEvent || $window.addEventListener,
chkevent = $window.attachEvent ? 'onbeforeunload' : 'beforeunload';
myEvent(chkevent, function(e) {
var confirmationMessage = ' ';
(e || $window.event).returnValue = "Are you sure that you'd like to close the browser?";
return confirmationMessage;
});
}
});
link
函数中的绑定事件,该函数将提供对角度编译指令元素的访问。
命令
.directive('windowExit', function($window) {
return {
restrict: 'AE',
link: function(element, attrs){
var myEvent = $window.attachEvent || $window.addEventListener,
chkevent = $window.attachEvent ? 'onbeforeunload' : 'beforeunload'; /// make IE7, IE8 compatable
myEvent(chkevent, function (e) { // For >=IE7, Chrome, Firefox
var confirmationMessage = ' '; // a space
(e || $window.event).returnValue = "Are you sure that you'd like to close the browser?";
return confirmationMessage;
});
}
};
});
.HTML
<body window-exit></body>
我最终使用了这种方法:
'use strict';
angular.module('myApp')
.controller('MyCtrl', ['$rootScope', '$scope', '$location', '$state', '$window', '$timeout', '$sce', 'UserAuthorize', function($rootScope, $scope, $location, $state, $window, $timeout, $sce, UserAuthorize) {
//Getting the value from storage
$window.sessionStorage.getItem('key');
//Setting the value to storage
$window.sessionStorage.setItem('key', 'value');
// Remove from storage
$window.sessionStorage.removeItem('key');
}]);
基于此,我在用户登录时保存了我的值。然后,当浏览器窗口关闭时,这些值将不会保留。
通过使用本地存储,我只能为当前窗口保留会话。
编辑:我虽然通过使用 cookie 方法我可以处理这个问题,但后来我遇到了区分刷新和关闭的问题。事实证明,本地存储节省了我的一天:)