chainer

components.chainer-subclass.js

import Ember from 'ember';
import Chainer from 'app/components/my-chainer'

export default Chainer.extend({
  
  first(){
    console.log('subclass first', this)
  }
});

components.invokes-chainer.js

import Ember from 'ember';

export default Ember.Component.extend({
   doChain(){},
   actions: {
      performChain(){
         console.log('about to doChain')
         debugger;
         this.get('doChain')()
      } 
   }
});

components.my-chainer.js

import Ember from 'ember';

export default Ember.Component.extend({
  
  first(){
    	console.log('in first', this)
  },
  second(){},
  
    chain(){
      debugger;
       console.log('starting chain')
       this.first();
       this.second();
    }
  
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

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

{{chainer-subclass}}

<br>
<br>

templates.components.chainer-subclass.hbs

{{#invokes-chainer doChain=chain}}
hi
{{/invokes-chainer}}

templates.components.invokes-chainer.hbs

<button type="button" {{action "performChain"}}>Invokes chainer</button>
{{yield}}

templates.components.my-chainer.hbs

<button type="button" {{action "chain"}}>Chain stuff</button>

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": {}
}