ember-component-inverse-template-dropdown-example

application.controller.js

import Ember from 'ember';

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

application.template.hbs

<h1>Inverse Template Example</h1>
<br>
<br>

{{#my-dropdown}}
  <ol class="menu-items">
    <li>Item 1</li>
    <li>Item 2</li>
  </ol>
{{else}}
  Menu
{{/my-dropdown}}

my-dropdown.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  isOpen: false,
  
  label: "My Dropdown",
  
  actions: {
    toggleOpen() {
   		this.toggleProperty('isOpen');
    }
  }
});

my-dropdown.template.hbs

{{!-- my-dropdown.hbs --}}

<div class="trigger">
  <button onclick={{action "toggleOpen"}}>
    {{#if (hasBlock "inverse")}}
      {{yield to="inverse"}}
    {{else}}
      {{label}}
    {{/if}}
  </button>
</div>

{{#if isOpen}}
  <div class="dropdown-container">
    {{yield}}
  </div>
{{/if}}

twiddle.json

{
  "version": "0.4.17",
  "EmberENV": {
    "FEATURES": {}
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.2.0",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "2.2.0"
  }
}