在AngularJS应用程序(主要)中,我有一个iframe
,其中还有另一个AngularJS应用程序(iframe)也在我的控制之下。我想在两个服务之间共享数据,一个在主应用程序中,另一个在iframe应用程序中。他们都需要读取和写入同一个对象。
// main
// ... routes ...
views: { main: {
controller: function ($scope, serviceA) {
$scope.serviceA = serviceA;
},
templateUrl: 'iframe.html'
}
// ...
function ServiceA () {
this.sharedData; // exposed to controllers in main app
}
// ...
// iframe
// ...
function ServiceB () {
this.sharedData; // exposed to controllers in iframe app
}
// ...
当在iframe应用程序中的控制器内部时,我设法引用serviceA.sharedData
,如下所示:
var self = this;
var parentScope = $window.parent.angular.element($window.frameElement).scope();
parentScope.$watch('serviceA.sharedData', function (newValue, oldValue) {
self.sharedData = newValue;
}
这可以实现吗?
我已阅读以下内容,但无法将其转变为解决方案,但是:
答案 0 :(得分:7)
我设法做了一些有用的事情,对你有用。它并不完美但是一个好的开始。这是代码:
父页:
<div ng-controller="ParentController">
<h1>Hello, parent page!</h1>
<p><strong>Parent model:</strong></p>
<p>
<input type="text"
ng-model="data.foo"
placeholder="Enter the thing you want to share"/>
</p>
<p><strong>Parent result:</strong></p>
<p>{{ data.foo }}</p>
<iframe src="child-page.html" frameborder="0"></iframe>
</div>
子页面:
<div ng-controller="ChildController">
<h1>Hello, child page!</h1>
<p><strong>Child result:</strong></p>
<p>{{ data.foo }}</p>
</div>
<强> app.js 强>
var app = ng.module('myApp', []);
app.factory('DataService', ['$rootScope', '$window', function ($rootScope, $window) {
var // Variables
dataScope,
// Functions
getScope;
dataScope = $rootScope.$new(true);
getScope = function () {
return dataScope;
};
$window.DataService = {
getScope: getScope
};
return {
getScope: getScope
};
}]);
app.controller('ParentController', ['$scope', 'DataService', function ($scope, DataService) {
$scope.data = DataService.getScope();
}]);
app.controller('ChildController', ['$scope', '$window', '$interval', function (
$scope,
$window,
$interval
) {
$scope.data = $window.parent.DataService.getScope();
// makes a $scope.$apply() every 500ms. Without it, data doesn't change
$interval(ng.noop, 500);
}]);
所有这些代码都会导致:
子控制器中的重要部分是$scope.data = $window.parent.DataService.getScope();
。这就是它获取共享$ scope的地方。
当然,所有这一切只有在父母和父母的情况下才有效。 iframe属于同一个域。否则,它变成了另一个复杂的故事...
希望这会对你有所帮助。
答案 1 :(得分:6)
好的,所以这是我的解决方案,我希望这是你的想法。
在父应用程序的控制器中:
mainApp = angular.module('mainApp', []);
mainApp.controller('mainCtrl', ['$scope', 'sharedData', function($scope, sharedData){
$scope.sharedData = sharedData;
//your controller logic goes here ...
}]);
在iframe应用程序的控制器中:
iframeApp = angular.module('iframeApp', []);
iframeApp.controller('iFrameCtrl', function($scope){
//here we get the service instance from the parent application, if you
//need it in other controllers in the iframe app as well, either get it
//there the same way or pass it along via $scope or $rootScope
var sharedData = window.parent.angular.element(window.frameElement).scope().sharedData;
//now we can use sharedData the same way as in the parent application controller
});
sharedData.js (共享服务的js文件,只需parent.html
包含)
mainApp.factory('sharedData', function(){
var list = [];
var mainScope;
var iframeScope;
//this function needs to be called in all setter methods to update the data in both applications
function update(){
if(!mainScope){
mainScope = angular.element(document.body).scope();
}
//$apply() causes errors in the dev console, $applyAsync doesn't, I don't know why
mainScope.$applyAsync();
if(!iframeScope){
//the update function might be called before angular is initialized in the iframe application
if(document.getElementById('iframe').contentWindow.angular){
iframeScope = document.getElementById('iframe').contentWindow.angular.element(document.body).scope();
iframeScope.$applyAsync();
}
} else {
iframeScope.$applyAsync();
}
}
return {
append: function(item) {
list.push(item);
//don't forget to add this at the end of all setter functions in the service
update();
},
getAll: function() { return list }
}
});
iframe的内容并不适用于jsfiddle(可能是跨源),所以我将更广泛的示例放在github页面上: