AngularJS如何从另一个控制器调用一个控制器的功能

Question

I am trying to split a big controller. 我正在尝试拆分一个大控制器。 The way to go would be through factories, but since I am changing the DOM I should do it through controllers. 可以通过工厂进行操作，但是由于我要更改DOM，因此应该通过控制器来完成。

Then, what I am trying to achieve is to call a function defined in Cntrl2 from Cntrl1. 然后，我要实现的是从Cntrl1调用Cntrl2中定义的函数。 The example 这个例子

html HTML

<body ng-app="app">
<div ng-controller='Cntrl1'>
{{message}}
</div>
</body>

js JS

var myModule = angular.module('app', []);

angular.module('app').controller('Cntrl1', 
['$scope', '$q', '$timeout', 'Share_scope', 
function ($scope, $q, $timeout, Share_scope) {
    Share_scope.process();
    $scope.message = 'started';
}]);

angular.module('app').controller('Cntrl2', 
['$scope', '$q', '$timeout', 'Share_scope', 
function ($scope, $q, $timeout, Share_scope) {
    Share_scope.x = function() {
           alert('done');
    }
}]);

angular.module('app').factory('Share_scope', 
['$window', '$q',
function($window, $q) {
    var x;
    return {
        process: function() {
            return x;
        },
    };
}]);

The demo http://jsfiddle.net/T8rgv/7/ 演示http://jsfiddle.net/T8rgv/7/

What I would expect is to define "var x" of the factory as the function of Cntrl2, and then execute this function through the factory when I call it from Cntrl1. 我希望将工厂的“ var x”定义为Cntrl2的函数，然后在我从Cntrl1调用它时通过工厂执行此函数。

So, how to make this work? 那么，如何使这项工作呢？ Is this approach correct? 这种方法正确吗？ Or should I just change the DOM from a factory? 还是应该只从工厂更改DOM？

Cheers, Gerard 干杯，杰拉德

Answer 1

Not knowing where in relation Cntrl2 is to Cntrl1, I would use emit or broadcast somewhat like this. 不知道在Cntrl2与Cntrl1之间的关系，我会像这样使用发射或广播。 Note from past experience I don't think it's a good idea to use two or more different modules in the same page. 请注意，根据过去的经验，我认为在同一页面中使用两个或多个不同的模块不是一个好主意。

var myModule = angular.module('app', []);

angular.module('app').controller('Cntrl1', 
['$scope', '$q', '$timeout', 'myFactory', 
function ($scope, $q, $timeout, myFactory) {
    $scope.$emit('messageEvt','started');
    myFactory.process().then(function() {
        $scope.$emit('messageEvt','ended');
    });
}]);

angular.module('app').controller('Cntrl2', 
['$scope', '$q', '$timeout', $rootScope, 
function ($scope, $q, $timeout, $rootScope) {
    $rootScope.$on('messageEvt',function(e,msg) {
        $scope.message = msg;
    }
}]);

angular.module('app').factory('myFactory', 
['$window', '$q','$timeout',
function($window, $q,$timeout) {
    var x;
    return {
        process: function() {
            var deferObj = $q.defer();
            $timeout(function() {
                deferObj.resolve(x);
            });
            return deferObj.promise;
        },
    };
}]);

Answer 2

I think better way to do this is by having factory maintain the model and both controllers updating it when needed. 我认为更好的方法是让工厂维护模型，并由两个控制器在需要时进行更新。

I updated the fiddle to http://jsfiddle.net/hh5Cy/2/ 我将小提琴更新为http://jsfiddle.net/hh5Cy/2/

angular.module('app').factory('Share_scope', 
['$window', '$q',
function($window, $q) {
    var x;

    return {
        getProcess: function() {
            return x;
        },
        setProcess: function(value){
           x = value;
        }
    };
}]);

Please let me know if I understood you wrongly. 如果我对你的理解有误，请告诉我。

AngularJS如何从另一个控制器调用一个控制器的功能

问题描述

2 个解决方案

解决方案1
1 2014-02-19 00:18:17

解决方案2
0 2014-02-19 00:25:04

AngularJS如何从另一个控制器调用一个控制器的功能

问题描述

2 个解决方案

解决方案1 1 2014-02-19 00:18:17

解决方案2 0 2014-02-19 00:25:04

解决方案1
1 2014-02-19 00:18:17

解决方案2
0 2014-02-19 00:25:04