New Twiddle

components.custom-notification.js

import Ember from 'ember';
import { task, timeout } from 'ember-concurrency';

export default Ember.Component.extend({
  didReceiveAttrs() {
    this._super(...arguments);
    let task = this.get('message.task');
    this.get('closeTask').perform(task);
  },
  
  closeTask: task(function* (task) {
    yield task;
    yield timeout(1000)
    this.get('close')();
  })
});

controllers.application.js

import Ember from 'ember';
import { task, timeout } from 'ember-concurrency';

const { inject: { service } } = Ember;

export default Ember.Controller.extend({
  notify: service(),
  appName: 'Ember Twiddle',
  
  testTask: task(function* () {
    console.log('task started');
    yield timeout(1000);
    console.log('task complete');
  }),
  
  actions: {
    notify() {
      let testTask = this.get('testTask').perform();
      
      this.get('notify').info({component: 'custom-notification', text: "alert", task: testTask});
    },
    
    notifyPlain() {
      this.get('notify').info('simple text notification');
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<button {{action 'notify'}}>Notify</button>
<button {{action 'notifyPlain'}}>Notify plain</button>
<br>
<br>
{{#ember-notify closeAfter=null as |message close|}}
  {{#if message.component}}
    {{component message.component message=message close=close}}
  {{else}}
    {{message.text}}
    <button {{action close}}>Dismiss</button>
  {{/if}}
{{/ember-notify}}

templates.components.custom-notification.hbs

<div>
  Custom Notification:
</div>
{{message.text}}
<div>Tasks is running: {{message.task.isRunning}}</div>
<button {{action close}}>Dismiss</button>

twiddle.json

{
  "version": "0.11.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.11.0",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.11.0",
    "ember-testing": "2.11.0"
  },
  "addons": {
    "ember-notify": "5.2.1",
    "ember-concurrency": "0.7.19"
  }
}