Ember High Order Tabs Component

components.tab-list.js

import Ember from 'ember';

export default Ember.Component.extend({
  classNames: ['m-tablist']
});

components.tab-panel.js

import Ember from 'ember';

const { computed, get } = Ember;

export default Ember.Component.extend({
  is_selected: computed('selected_tab_id', 'tab_id', function() {
    return get(this, 'selected_tab_id') === get(this, 'tab_id') ? true : false;
  })
});

components.x-tab.js

import Ember from 'ember';

const { get } = Ember;

export default Ember.Component.extend({
  classNames: ['m-tab'],
  
  click() {
    get(this, 'action')(get(this, 'tab_id'));
  }
	
});

components.x-tabs.js

import Ember from 'ember';

const { set } = Ember;

export default Ember.Component.extend({
  
  actions: {
    select(tab_id) {
      set(this, 'selected_tab_id', tab_id);
    }
  }
});

controllers.application.js

import Ember from 'ember';

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

styles.app.css

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

.m-tablist {
  display: flex;
}
.m-tab {
  cursor: pointer;
  padding: 0 10px;
  flex: 1;
  text-align: center;
}
.m-tab:hover {
  color: lightblue;
}
.m-tab:not(:last-child) {
  border-right: 1px solid #000;
}

templates.application.hbs

<h1>High Order Component Tabs</h1>
<br>
<br>
 {{#x-tabs selected_tab_id='second' as |tabs|}}
 		{{#tabs.list}}
    	{{#tabs.tab tab_id='first'}} First {{/tabs.tab}} 
    	{{#tabs.tab tab_id='second'}} Second {{/tabs.tab}}
      {{#tabs.tab tab_id='third'}} Third {{/tabs.tab}}
    {{/tabs.list}}
    
    {{#tabs.panel tab_id='second'}}
    	<h1>second tab</h1>
    {{/tabs.panel}}
    
    {{#tabs.panel tab_id='first'}}
      <h1>first tab</h1>
    {{/tabs.panel}}
    
    {{#tabs.panel tab_id='third'}}
      <h2>Third Tab</h2>
    {{/tabs.panel}}
 {{/x-tabs}}
<br>
<br>

templates.components.tab-list.hbs

{{yield}}

templates.components.tab-panel.hbs

{{#if is_selected}}
  {{yield}}
{{/if}}

templates.components.x-tab.hbs

{{yield}}

templates.components.x-tabs.hbs

{{yield (hash list=(component "tab-list")
							panel=(component "tab-panel" selected_tab_id=selected_tab_id)
              tab=(component "x-tab" action=(action "select") ) ) }}

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"
  }
}