New Twiddle

components.file-upload.js

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
    upload(name) {
      return new Ember.RSVP.Promise((resolve, reject) => {
        Ember.run.later(() => {
          alert(`Uploaded ${name}`);
          resolve();
        }, 100)
      });
      
    }
  }
});

components.video-editor.js

import Ember from 'ember';

export default Ember.Component.extend({
  reset() {
    this.set('filename', '');
  },
  actions: {
    upload() {
      this.get('action')(this.get('filename')).then(() => this.reset());
    }
  }
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

{{#file-upload as |upload|}}
  {{video-editor action=upload}}
{{/file-upload}}

templates.components.file-upload.hbs

{{yield (action 'upload')}}

templates.components.video-editor.hbs

Filename:
{{input type='text' value=filename}}
<button {{action 'upload'}}>Upload</button>

twiddle.json

{
  "version": "0.10.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.6.0",
    "ember-data": "2.6.1",
    "ember-template-compiler": "2.6.0"
  },
  "addons": {}
}