Ember App.Router.router.currentState 未定义 [英] Ember App.Router.router.currentState undefined

问题描述

我想监控 App.Router.router.currentState 以激活/停用导航链接.大致如下所述:https://stackoverflow.com/a/13312466/674525

I want to monitor App.Router.router.currentState for the purpose of activating/deactivating the navigation links. Something along the lines as explained here: https://stackoverflow.com/a/13312466/674525

然而，属性 currentState 似乎不再存在于路由器中.App.get('Router.router.currentState') 返回未定义.

However, the property currentState does not seem to exist in the router any more. App.get('Router.router.currentState') returns undefined.

我想，它在最近的 Ember 版本中发生了变化.还有其他方法吗?

I suppose, it changed in the recent Ember versions. Is there another way of doing this?

推荐答案

好的.解决了这个问题.似乎 currentPath 是在 applicationController 实例中设置的.所以我这样做了:

Ok. Got this solved. It seems that the currentPath is set in the applicationController instance. So I did this:

App = Em.Application.create({

    currentPath: '',

    ApplicationController : Ember.Controller.extend({
        updateCurrentPath: function() {
            App.set('currentPath', this.get('currentPath'));
        }.observes('currentPath')
    }),

    ...

});

然后，我可以从代码中的任何位置绑定或观察 App.currentPath 并对其更改做出反应.

Then, I can bind or observe the App.currentPath from anywhere in the code and react on its changes.

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