New Twiddle

application.controller.js

import Ember from 'ember';

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

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{parent-comp}}
<br>
<br>

child-comp.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  addPromise: function(){
    this.get("addValidation")(() => {return new Ember.RSVP.Promise(function(resolve, reject) {
      //resolve("Promise 1");
    })});
    this.get("addValidation")(() => {return new Ember.RSVP.Promise(function(resolve, reject) {
      Ember.run.later(function(){reject("Promise 2")},200);
    })});
    this.get("addValidation")(() => {return new Ember.RSVP.Promise(function(resolve, reject) {
      //reject("Promise 3");
    })});
  }.on("init")
});

child-comp.template.hbs

{{yield}}

parent-comp.component.js

import Ember from 'ember';

export default Ember.Component.extend({
    setValidations: function() {
        this.set("validations", [])
    }.on("init"),
    actions: {
        addParentValidation: function(validation) {
            this.get("validations").addObject(validation);
        },
        clicked: function() {
          
          let promises = this.get('validations').map(function(v) { return v() });
          console.log('promises', promises);
          

          Ember.RSVP.Promise.all(promises).then(
                function(values) {
                    console.log("Passed");
                    console.log(values);
                }
            ).catch(function(reason) {
                console.log("failed");
                console.log(reason);
            });;
        }
    }
});

parent-comp.template.hbs

<div>
	Parent component
  <button {{action "clicked"}}> CLick me </button>
  {{child-comp addValidation = (action 'addParentValidation')}}
</div>

twiddle.json

{
  "version": "0.4.13",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.1.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.1.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.1.0/ember-template-compiler.js"
  }
}