输入获得焦点时如何触发动作？ [英] How to trigger an action when an input gets focus?

问题描述

我想知道当输入集中时如何触发动作。.

现在我在模板上使用它： {{查看 clickinput类= form-control placeholder = search ... value = s action = focus}}

，这就是视图：

I want to know how to trigger an action when an input gets focused..
right now I'm using this on my template: {{view "clickinput" class="form-control" placeholder="search..." value=s action="focus"}}
and this as the view:

export default Ember.TextField.extend({
  onEvent: 'focusIn',
  focusIn: function() {
    this.sendAction('focusIn', this, event);
  }
});

而这在我的控制器上：

actions: {
  focus: function() {
    alert('f');
  }
}

但是它不起作用。
我在chrome上遇到此错误：未捕获的错误：断言失败：在组件< appkit @ view：clickinput :: ember438>上触发了focusIn操作，但是操作名称（功能superWrapper （）{var ret，sup = this .__ nextSuper; this .__ nextSuper = superFunc; ret = func.apply（this，arguments）; this .__ nextSuper = sup; return ret;}）不是字符串。

为什么？

推荐答案

原来更简单比我想象的要多。

我只需要写 {{input class = form-control placeholder = search ... value = s focus-in = focus }} 在我的模板中

It turned out to be simpler than I thought..
I just had to write {{input class="form-control" placeholder="search..." value=s focus-in="focus"}} in my template

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