如何在输入获得焦点时触发操作?

igu*_*der 7 handlebars.js ember.js

我想知道当输入聚焦时如何触发动作..
现在我在我的模板上使用它:{{view "clickinput" class="form-control" placeholder="search..." value=s action="focus"}}
这作为视图:

export default Ember.TextField.extend({
  onEvent: 'focusIn',
  focusIn: function() {
    this.sendAction('focusIn', this, event);
  }
});
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这在我的控制器上:

actions: {
  focus: function() {
    alert('f');
  }
}
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但它不起作用..
我在chrome上遇到此错误:Uncaught Error: Assertion Failed: The focusIn action was triggered on the component <appkit@view:clickinput::ember438>, but the action name (function superWrapper() { var ret, sup = this.__nextSuper; this.__nextSuper = superFunc; ret = func.apply(this, arguments); this.__nextSuper = sup; return ret; }) was not a string.

为什么?

igu*_*der 16

事实证明它比我想象的要简单.
我只需要{{input class="form-control" placeholder="search..." value=s focus-in="focus"}}在我的模板中 写