ember-concurrency demo

components.with-concurrency.js

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


export default Ember.Component.extend({
	notify: Ember.inject.service('notify'),
  actions: {
		startECLoop: function() {
     	this.get('emberConcurrencyLoop').perform();
    },
   notUsingECLoop: function() {
      this.get('notify').info('NOT using ember-concurrency', {
  			classNames: ['not-using-ec']
		})
      setInterval(function(){ 
        this.get('notify').info('NOT using ember-concurrency', {
  			classNames: ['not-using-ec']
		})
      }.bind(this), 3000);  
    },
    clickEC: function() {	this.get('emberConcurrencyEvent').perform()
    },
    clickRegular: function() {
    	this.get('notify').info('NOT using ember-concurrency', {
  			classNames: ['not-using-ec']
		})
    }
  },
 emberConcurrencyLoop: task(function * () { 
    while(true) { 
      this.get('notify').info('Yay, ember-concurrency task :)', {
  			classNames: ['using-ec']
		})
      yield timeout(3000)
    }
  }).drop(), 
   emberConcurrencyEvent:  task(function * () { 
      this.get('notify').info('Yay, ember-concurrency task :)', {
  			classNames: ['using-ec']
		})
     yield timeout(3000)
   }).drop(),
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Simple Ember Concurrency Demo',
  init: function() {
   this.transitionToRoute('with-concurrency'); 
    return this._super(...arguments);
  },
});

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('with-concurrency');
  this.route('home');
});

export default Router;

routes.home.js

import Ember from 'ember';

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

routes.with-concurrency.js

import Ember from 'ember';

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

styles.app.css

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

.not-using-ec {
	background-color: lightsalmon;
  font-weight: bold;
}

.using-ec {
	background-color: lightskyblue;
  font-weight: bold;
}

button {
font-size:16px;
}

templates.application.hbs

<h1>{{appName}}</h1>

{{outlet}}
<br>
<br>

templates.components.with-concurrency.hbs

Try rapidly clicking each of these buttons. Ember-concurrency helps prevent a pileup of alerts.
<br />
<button class="using-ec" {{action 'clickEC'}}>Use ember-concurrency</button>

<button class="not-using-ec" {{action 'clickRegular'}}>DON'T use it</button>

<br />
<br />

<div>Now, click one or both of these once to start some loops:</div>
<button class="using-ec" {{action 'startECLoop'}}>Use ember-concurrency</button>

<button class="not-using-ec" {{action 'notUsingECLoop'}}>DON'T use it</button>

{{ember-notify closeAfter=2500}}

templates.home.hbs

Are any alerts still running?
<br />
{{link-to 'Go back and see what happens' 'with-concurrency'}}

{{ember-notify closeAfter=2500}}

templates.with-concurrency.hbs

{{with-concurrency}}
<br />
Then, after you start a loop, see what happens when you leave this route and go to a new one:
{{link-to 'Trigger Transition' 'home'}}

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",
    "ember-concurrency": "0.8.3",
    "ember-notify":"5.2.1"
  }
}