ToggleButton

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  isActive: false,
  actions: {
    toggle() {
      this.toggleProperty('isActive');
    }
  }
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{toggle-button isActive=isActive action='toggle'}}
<br>
<br>

styles.app.css

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

button {
  background: lightgrey;
  border: none;
  border-radius: 4px;
  font-size: 20px;
  padding: 0.5em 1em;
  transition: background 200ms ease-in-out;
}

.is-active button {
  background: hotpink;
}

toggle-button.component.js

import Ember from 'ember';

const {
  computed,
  computed: {
    reads,
  },
  observer,
  run: {
    cancel,
    later,
  }
} = Ember;

export default Ember.Component.extend({
  classNameBindings: ['isActive'],
  isActive: false,
  defaultLabel: 'Label',
  currentLabel: reads('defaultLabel'),
  updateLabel: observer('isActive', function () {
    let isActive = this.get('isActive');
    if (isActive) {
      this.set('currentLabel', 'ON');
    } else {
      this.set('currentLabel', 'OFF');
    }
    
    this._timer = later(this, 'resetLabel', 1000);
  }),

  resetLabel() {
    this.set('currentLabel', this.get('defaultLabel'));
  },

  willDestroy() {
    if (this._timer) {
      cancel(this._timer);
    }
  },

  click() {
    this.sendAction();
  }
});

toggle-button.template.hbs

<button>Button</button>
<label>{{currentLabel}}</label>

twiddle.json

{
  "version": "0.5.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}