conditional closure action on contextual component

components.child-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  classNames: ['child_component'],
  tagName: 'button',
  actions: {
    doSomething: function() {
      alert('child: did something');
    }
  }
});

components.parent-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  classNames: ['parent_component'],
  isEnabled: false,
  actions: {
    doSomething: function() {
      alert('parent: did something');
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  actions: {
    doSomething: function() {
      console.log('application: did something');
      alert('application: did something');
    }
  }
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

.parent_component {
  background-color: #eee;
  padding: 8px;
}

.child_component {
  background-color: #ccc;
}

templates.application.hbs

{{#parent-component isEnabled=true as |p|}}

  {{#component p.childComponent
    click=(if p.isEnabled (action "doSomething"))
    message=(if p.isEnabled "Yes" "No")
  }}
    Am I child?
  {{/component}}
  
{{/parent-component}}

templates.components.child-component.hbs

{{yield}} - {{message}}

templates.components.parent-component.hbs

<small>parent component</small>
<br><br>
{{yield (hash
  isEnabled=isEnabled
  childComponent=(component 'child-component')
)}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.4.5",
    "ember-template-compiler": "2.4.5",
    "ember-testing": "2.4.5"
  },
  "addons": {}
}