ambari/ambari-web/app/controllers/main/service/widgets/create/step3_controller.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var App = require('app');

App.WidgetWizardStep3Controller = Em.Controller.extend({
  name: "widgetWizardStep3Controller",

  /**
   * @type {Array}
   */
  scopes: [
    Em.Object.create({
      name: 'User',
      checked: true
    }),
    Em.Object.create({
      name: 'Cluster',
      checked: false
    })
  ],

  /**
   * @type {string}
   */
  widgetName: '',

  /**
   * @type {string}
   */
  widgetAuthor: '',

  /**
   * @type {string}
   */
  widgetScope: function () {
    return this.get('scopes').findProperty('checked');
  }.property('scopes.@each.checked'),

  /**
   * @type {string}
   */
  widgetDescription: '',

  /**
   * actual values of properties in API format
   * @type {object}
   */
  widgetProperties: {},

  /**
   * @type {Array}
   */
  widgetValues: [],

  /**
   * @type {Array}
   */
  widgetMetrics: [],

  /**
   * restore widget data set on 2nd step
   */
  initPreviewData: function () {
    this.set('widgetProperties', this.get('content.widgetProperties'));
    this.set('widgetValues', this.get('content.widgetValues'));
    this.set('widgetMetrics', this.get('content.widgetMetrics'));
    this.set('widgetAuthor', App.router.get('loginName'));
    this.set('widgetName', '');
    this.set('widgetDescription', '');
  },

  //TODO: Following computed propert needs to be implemented. Next button should be enabled when there is no validation error and all required fields are filled
  isSubmitDisabled: function () {
    return !this.get('widgetName');
  }.property('widgetName')
});