AngularJS：懒加载控制器和内容 [英] AngularJS: lazy loading controllers and content

问题描述

在此情况下简单，我有两个文件：index.htm的，lazy.htm

In this simplified scenario, I have two files: index.htm, lazy.htm.

index.htm的：

index.htm:

var myApp = angular.module('myApp', []);
myApp.controller('embed',function($scope){
    $scope.embed = 'Embedded Controller';
});                  
<div ng-controller="embed">{{embed}}</div>    
<div ng-include="'lazy.htm'"></div>

lazy.htm

lazy.htm

myApp.controller('lazy',function($scope){
    $scope.lazy = 'Lazy Controller';
});
<div ng-controller="lazy">
    {{lazy}}
</div>

结果是错误的：论证懒惰是不是一个函数，得到了不确定的

The result is an error: "Argument 'lazy' is not a function, got undefined"

使用函数，而不是

lazy.htm

function lazy($scope) {
    $scope.lazy = 'Lazy Controller';
}
<div ng-controller="lazy">
    {{lazy}}
</div>

这工作，直到1.3版公测14.在公测15移去全局控制器功能：<一href=\"https://github.com/angular/angular.js/issues/8296\">https://github.com/angular/angular.js/issues/8296

This works until version 1.3 beta 14. In beta 15 was removed the global controller functions: https://github.com/angular/angular.js/issues/8296

所以，现在，什么是更好的方式来获得angularized lazy.htm内容动态？

So now, what is the better way to get angularized contents of lazy.htm dynamically?

更新：

在这篇文章中（ http://ify.io/lazy-loading-in-angularjs ）我发现了另一个可能的解决方案。在$ controllerProvider让我们的角度引导后注册新的控制器。奇迹般有效。经测试，在 V1.3.0-beta.18

In this article (http://ify.io/lazy-loading-in-angularjs) I found another possible solution. The $controllerProvider allow us to register new controllers after angular bootstrap. Works like a charm. Tested in v1.3.0-beta.18

index.htm的：

index.htm:

var myApp = angular.module('myApp', [])
.controller('embed',function($scope){
    $scope.embed = 'Embedded Controller';
})
.config(function($controllerProvider) {
    myApp.cp = $controllerProvider;
});

<div ng-controller="embed">{{embed}}</div>    
<div ng-include="'lazy.htm'"></div>

lazy.htm

lazy.htm

myApp.cp.register('lazy',function($scope){
    $scope.lazy = 'Lazy Controller';
});
<div ng-controller="lazy">
    {{lazy}}
</div>

更新2：

另外两个的作品替代品：

Two other alternatives that works are:

lazy.htm

_app = $('[ng-app]').scope();    
_app.lazy = function($scope) {
    $scope.lazy = 'Lazy Controller';
};

或

var $rootScope = $('[ng-app]').injector().get('$rootScope');        
$rootScope.lazy = function($scope) {
    $scope.lazy = 'Lazy Controller';
}; 

不过，我相信这两个例子不应该在生产中使用。

But I believe these last two examples should not be used in production.

推荐答案

您也可以使用jQuery的与解析$ routeProvider

You can also use the jquery with the resolve the $routeProvider

app.js

/* Module Creation */
var app = angular.module ('app', ['ngRoute']);

app.config(['$routeProvider', '$controllerProvider', function($routeProvider, $controllerProvider){

/*Creating a more synthesized form of service of $ controllerProvider.register*/
app.registerCtrl = $controllerProvider.register;

function loadScript(path) {
  var result = $.Deferred(),
  script = document.createElement("script");
  script.async = "async";
  script.type = "text/javascript";
  script.src = path;
  script.onload = script.onreadystatechange = function (_, isAbort) {
      if (!script.readyState || /loaded|complete/.test(script.readyState)) {
         if (isAbort)
             result.reject();
         else
            result.resolve();
    }
  };
  script.onerror = function () { result.reject(); };
  document.querySelector("head").appendChild(script);
  return result.promise();
}

function loader(arrayName){

    return {
      load: function($q){
                var deferred = $q.defer(),
                map = arrayName.map(function(name) {
                    return loadScript('js/controllers/'+name+".js");
                });

                $q.all(map).then(function(r){
                    deferred.resolve();
                });

                return deferred.promise;
        }
    };
}

$routeProvider  
    .when('/', {
        templateUrl: 'views/foo.html',
        resolve: loader(['foo'])
    })
    .when('/bar',{
        templateUrl: 'views/bar.html',
        controller: 'BarCtrl',
        resolve: loader(['bar'])
    })
    .otherwise({
        redirectTo: document.location.pathname
    });
}]);

/views/foo.html

/views/foo.html

<section ng-controller='FooCtrl'>
    {{text}}
</section>

JS /控制器/ foo.js

js/controllers/foo.js

/*Here we use the synthesized version of $controllerProvider.register 
to register the controller in view*/
app.registerCtrl('FooCtrl',function($scope){
    $scope.text = 'Test';
});

/views/bar.html

/views/bar.html

<section>
    {{text2}}
</section>

JS /控制器/ bar.js

js/controllers/bar.js

app.registerCtrl('BarCtrl',function($scope){
    $scope.text2 = 'Test';
});

这篇关于AngularJS：懒加载控制器和内容的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！