New Twiddle

components.event-capture.js

import Ember from 'ember';

function selectorFilter(eventType) {
  return Ember.on(eventType, function(evt) {
    var isSelector = Ember.$(evt.target).is(this.get('selector'))
    if (isSelector) {
      this.sendAction(`on${eventType}`, ...arguments);
    }
  });
}

export default Ember.Component.extend({
  _click: selectorFilter('click')
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  actions: {
    doSomething(evt) {
      alert(evt);
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>

{{#event-capture onclick=(action "doSomething") selector="strong"}}	 <header><strong>Strong</strong>
Just regular text</header>
{{/event-capture}}
<br>
<br>

templates.components.event-capture.hbs

{{yield}}

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}