[英]$window.addEventListener not triggered in angular
I am trying to refresh an angular table when a message arrives informing new data is ready; 当消息到达通知新数据准备就绪时,我试图刷新角度表。 I am trying to use this code following the hint at: Listen to window events in an Angularjs service , but the event is not even received when command:
我试图按照以下提示使用此代码: 侦听Angularjs服务中的窗口事件 ,但是在命令时甚至没有收到该事件:
parent.postMessage("printComments", "*");
is sent by another page in a frame. 由框架中的另一页发送。
What is the business? 什么事
<div ng-controller="MyCtrl" ng-app="myapp">
<table ng-table="commentsTable">
<tr ng-repeat="item in obj.data track by $index">
<td class="plantCell">{{item.nome}}: </td>
<td class="statusCell">{{item.status}}</td>
<td class="statusCell">{{item.testo}}</td>
</tr>
</table>
</div>
<script language="javascript">
var app=angular.module('myapp', []);
var printOperation;
function GetFromLocalStorage(key) {
var items=localStorage.getItem(key);
console.log(items);
if (items===null){
console.log("item null");
return null;
} else {
if (typeof items!= "string") {items = JSON.stringify(items);}
return items;
}
}
app.service('servicename', function($window, $rootScope) {
function subsFunc() {
$window.addEventListener('printComments',
function(e) {
alert("arriva evento");
$rootScope.$broadcast('app.clickEvent', e);
});
}
return {
"subscribeMe": subsFunc
}
});
app.controller('MyCtrl',
function($scope,servicename) {
$scope.data = {};
$scope.printComments = function() {
//$scope.obj=GetFromLocalStorage("AllComments");
$scope.data.obj = [{
"nome": "first",
"status": 1,
"testo": "Rottura rullo 1!!!"
}, {
"nome": "second",
"status": 0,
"testo": "Rottura rullo fsdfsf!!!"
}];
console.log("ricevo evento e ricarico tabella");
console.log($scope.data.obj);
}
servicename.subscribeMe();
$scope.$on('app.clickEvent', function(a, b) {
console.log("evento");
alert("on received");
$scope.printComments();
});
}
)
You had some error in you code. 您的代码中有一些错误。 I fixed it look at the snippet.
我将其固定在代码段中。 there is no event printComments in $window object so i changed it to load for demo purpose, you could change it according to your need.
$ window对象中没有事件printComments ,因此我将其更改为出于演示目的而加载 ,您可以根据需要进行更改。
You forgot to inject the service in your controller, so your event listener was not registered.this line: 您忘记将服务注入到控制器中,因此未注册事件侦听器。此行:
servicename.subscribeMe();
servicename.subscribeMe();
// Create IE + others compatible event handler var eventMethod = window.addEventListener ? "addEventListener" : "attachEvent"; var eventer = window[eventMethod]; var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message"; // Listen to message from child window eventer(messageEvent,function(e) { console.log('parent received message!: ',e.data); $(window).trigger(e.data); },false); var app=angular.module('myapp', []); var printOperation; function GetFromLocalStorage(key) { var items=localStorage.getItem(key); console.log(items); if (items===null){ console.log("item null"); return null; } else { if (typeof items!= "string") {items = JSON.stringify(items);} return items; } } app.service('servicename', function($window, $rootScope) { function subsFunc() { //$($window).on("printComments", function(e){ $($window).on("printComments", function(e) { alert("arriva evento"); $rootScope.$broadcast('app.clickEvent', e); }); } return { "subscribeMe": subsFunc }; }); app.controller('MyCtrl', function($scope,servicename,$timeout) { $scope.data = {}; $scope.printComments = function() { //$scope.obj=GetFromLocalStorage("AllComments"); $scope.data.obj = [{ "nome": "first", "status": 1, "testo": "Rottura rullo 1!!!" }, { "nome": "second", "status": 0, "testo": "Rottura rullo fsdfsf!!!" }]; console.log("ricevo evento e ricarico tabella"); console.log($scope.data.obj); }; servicename.subscribeMe(); $scope.$on('app.clickEvent', function(a, b) { console.log("evento"); alert("on received"); $timeout(function(){ $scope.printComments(); }); }); });
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div ng-controller="MyCtrl" ng-app="myapp"> <table servicename> <tr ng-repeat="item in data.obj track by $index"> <td class="plantCell">{{item.nome}}: </td> <td class="statusCell">{{item.status}}</td> <td class="statusCell">{{item.testo}}</td> </tr> </table> <iframe src="//sample ifream with postmessage script"></iframe> </div>
where is your controller? 您的控制器在哪里? you need to define the controller in the js
您需要在js中定义控制器
var app = angular.module('myapp', []); app.controller("MyCtrl", function($scope) { $scope.obj = [{nome:"Sss"}] }) var printOperation; function GetFromLocalStorage(key) { var items = localStorage.getItem(key); console.log(items); if (items === null) { console.log("item null"); return null; } else { if (typeof items != "string") { items = JSON.stringify(items); } return items; } } app.service('serviceName', function($window, $rootScope) { function subsFunc() { $rootScope.printComments = function() { //$rootScope.obj=GetFromLocalStorage("AllComments"); $rootScope.obj = [{ "nome": "first", "status": 1, "testo": "Rottura rullo 1!!!" }, { "nome": "second", "status": 0, "testo": "Rottura rullo fsdfsf!!!" }]; console.log("ricevo evento e ricarico tabella"); console.log($rootScope.obj); } $window.addEventListener('printComments', function(e) { console.log("ricevo evento"); $rootScope.printComments(); }) } });
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app="myapp" ng-controller="MyCtrl"> <table ng-table="commentsTable"> <tr ng-repeat="item in obj track by $index"> <td class="plantCell">{{item.nome}}: </td> <td class="statusCell">{{item.status}}</td> <td class="statusCell">{{item.testo}}</td> </tr> </table> </div>
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