如何在回调函数中冒泡 Ember 操作? [英] How can I bubble up an Ember action inside a callback function?

问题描述

我有一个 Ember 应用程序，我正在使用一个操作来应用 CSS 动画.动画完成后，我想将动作从控制器冒泡到我的路由以处理更多功能.

I have an Ember application and I am using an action to apply a CSS animation. Once the animation is complete I want to bubble up the action from the controller to my route to handle further functionality.

我知道如果我 return: true; 操作会冒泡，正如 此处.

I know that if I return: true; the action will bubble up, as explained here.

这是我的控制器的样子:

This is what my controller looks like:

App.MyController = Ember.ObjectController.extend({
    actions: {
        myAction: function() {
            $('.my-element').addClass('my-animation-class').one('webkitAnimationEnd oanimationend msAnimationEnd animationend', function(e) {
                console.log('working');
                return true;
            }
        }
    }
});

如果我在我的 animationend 回调中将某些内容记录到我的控制台，我可以看到它在工作，如果我将 return: true; 移到回调之外，动作就会冒泡成功地.但是，在回调内部返回 true 不起作用.

If I log something to my console in my animationend callback I can see it working and if I move return: true; outside of the callback, the action bubbles up successfully. However, returning true inside of the callback does not work.

我错过了什么?

推荐答案

你可以通过调用self.target.send('myAction');

一个像这样定义的IndexController

App.IndexController = Ember.Controller.extend({
  actions: {
    bubbleMe: function(item){
      var self = this;
      alert('IndexController says you clicked on: ' + item);
      setTimeout(function(){
        self.target.send('bubbleMe',[item]);
      }, 1000);
    }
  }
});

会冒泡到这样定义的 ApplicationRoute

App.ApplicationRoute = Ember.Route.extend({
  actions: {
    bubbleMe: function(item){
      alert('ApplicationRoute says you clicked on: ' + item);
    }
  }
});

你可以在这里看到一个工作小提琴:http://jsfiddle.net/tikotzky/2ce9s32f/

You can see a working fiddle here: http://jsfiddle.net/tikotzky/2ce9s32f/

这篇关于如何在回调函数中冒泡 Ember 操作?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！