Discuss.emberjs example

add-color-box.component.js

import Ember from 'ember';

export default Ember.Component.extend({
	classNames: ['add_color_box'],
  actions: {
  	addColorBox() {
  		this.get('addColorBox')();
		}
  }                                  
});

add-color-box.template.hbs

<button class="add_color_box-button" {{action 'addColorBox'}}>Add Color Box</button>

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  backgroundColors: ['#112233', '#aabbcc', '#11aa22'],
  actions:{
    addColorBox(){
      this.get('backgroundColors').pushObject('#22bb33');
    }
  }
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<div class="color-boxes">
{{#each backgroundColors as |color|}}
  {{color-box backgroundColor=color}}
{{/each}}
</div>

{{add-color-box addColorBox=(action "addColorBox")}}

<br>
{{outlet}}
<br>
<br>

color-box.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  backgroundColor: '#bada55',
  classNames: ['color_box'],
  actions: {
    destroyBox() {
      this.destroy();
    }
  }
});

color-box.template.hbs

<div class="color_box-box" style="background: {{backgroundColor}}">
  {{input value=backgroundColor class="color_box-input"}}
  <button class="color_box-button" {{action 'destroyBox'}}>X</button>
</div>

styles.app.css

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

.color_box {
  display: inline-block;
  width: 100px;
  height: 100px;
  border: 1px solid #ddd;
  overflow: hidden;
  position: relative;
}

.color_box-box {
  width: 100%;
  height: 100%;
}

.color_box-input {
  width: 100%;
  background: transparent;
  border: none;
  font-size: 15px;
  text-align: center;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

.color_box-button {
  position: absolute;
  top: 5px;
  right: 5px;
}

twiddle.json

{
  "version": "0.6.3",
  "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/2.4.1/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.4.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.1/ember-template-compiler.js"
  }
}