New Twiddle

components.inner-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.wrapping-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  mouseX: 0,
  
  didInsertElement() {
    this.$().on('mousemove', (event) => {
      Ember.run(() => {
      	this.set('mouseX', event.clientX);
      });
    });
  },
 
  didRender() {
    console.log('didRender');
  }
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

{{wrapping-component}}

templates.components.inner-component.hbs

<div style="background: red; height: 500px;"></div>

templates.components.wrapping-component.hbs

{{inner-component mouseX=mouseX}}

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": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}