AngularJS - 具有自己的类型/提供者的扩展模块

Question

我想广告一个新的(对话)type到角,所以就像我用我可以使用它module.directive,module.filter,module.controller注册指令,过滤器和控制器.

我想以dialog这种方式注册我的类型实例:

module.dialog('prompt',function(dependencies){
    return {
        templateUrl:'prompt.html',
        controller:function($scope){},
        something:'value'
    }
});

我还希望能够在控制器中使用已注册的对话框(依赖注入)

module.controller('ListCtrl',function($scope,prompt){
    $scope.deleteItem = function(item){
        prompt('Do you want to delete this item?').then(function(result){
            if(result) item.$delete();
        });
    }
});

这归结为以下问题:

1. 如何扩展角度模块以module.dialog注册我的dialog类型？

2. 如何将注册的dialogs注射剂注入controllers等？

顺便说一句,

• 我知道angular-ui和angular-strap.
• 我宁愿不用dialog作服务,而是单独使用type(此解决方案已经实现angular-ui).

Answer 1

这是一个非常有趣的问题.我将在答案前加上一个观点:我认为你不应该延伸angular.module提供一种dialog方法.这些方法是内置Angular提供程序的快捷方式,Angular团队不时添加一些方法.既然您可以在不添加dialog方法的情况下访问您正在寻找的功能,我就不会.也就是说,下面的代码确实向您展示了它的基本版本如何工作(它不会修改Angular模块原型,只修改模块的单个实例).

<div ng-app="myApp">
  <div ng-controller='MainController'>
    <div>
      <button ng-click='askName()'>Ask Name</button>
      <button ng-click='askNameAgain()'>Ask Name Again</button>
      <button ng-click='askAge()'>Ask Age</button>
      <button ng-click='askFood()'>Ask Food</button>
    </div>
    <div>{{lastResponse}}</div>
  </div>
</div>

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

// Provide some basic injectables for testing
app.constant('nameString', 'NAME');
app.constant('ageString', 'AGE');
app.constant('foodString', 'FAVORITE FOOD');

// Create the dialog provider
app.provider('dialog', function($provide, $injector) {
  var dialogs = {};

  this.register = function(name, configFn) {
    // Create a new service
    $provide.factory(name, function($window, $q) {
      dialogs[name] = function() {
        // Get data based on DI injected version of configFn
        var data = $injector.invoke(configFn);
        // faking async here since prompt is really synchronous
        var deferred = $q.defer();
        var response = $window.prompt(data.text);
        deferred.resolve(response);
        return deferred.promise;
      };
      return dialogs[name];
    });
  };

  // Injecting the service itself gives you a function that
  // allows you to access a dialog by name, much like $filter
  this.$get = function() {
    return function(name) {
      return dialogs[name];
    };
  };
});

// Providing dialog injectables via app.config
app.config(function(dialogProvider) {
  dialogProvider.register('askFood', function(foodString) {
    return { text: 'What is your ' + foodString + '?' }
  });
});

// Alternatively, shortcut to accessing the dialogProvider via app.dialog
app.dialog = function(name, configFn) {
  app.config(function(dialogProvider) {
    dialogProvider.register(name, configFn);
  });
};

app.dialog('askName', function(nameString) {
  return { text: 'What is your ' + nameString + '?' }
});

app.dialog('askAge', function(ageString) {
  return { text: 'What is your ' + ageString + '?' }
});

app.controller('MainController', 
               function($scope, askName, askAge, askFood, dialog) {
  var setLastResponse = function(result) {
    $scope.lastResponse = result;
  };

  $scope.askName = function() {
    askName().then(setLastResponse);
  };

  $scope.askNameAgain = function() {
    // get the dialog through the dialog service
    // much like how $filter works
    var theDialog = dialog('askName');
    theDialog().then(setLastResponse);
  };

  $scope.askAge = function() {
    askAge().then(setLastResponse);
  };

  $scope.askFood = function() {
    askFood().then(setLastResponse);
  };
});

这是一个工作示例:http://jsfiddle.net/BinaryMuse/zj4Jq/

通过利用函数$injector.invoke内部dialogProvider.register,您可以提供使用返回controller数据中的键的功能configFn.由于directive已经很多这样的工作,你可以通过检查AngularJS源获得很多.