text: /**
   * @license
   * Copyright 2016 Google Inc.
   *
   * Licensed 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.
   */
  
  
  goog.provide('shaka.ui.Spacer');
  
  goog.require('shaka.ui.Element');
  goog.require('shaka.util.Dom');
  
  
  /**
   * @extends {shaka.ui.Element}
   * @final
   * @export
   */
  shaka.ui.Spacer = class extends shaka.ui.Element {
    /**
     * @param {!HTMLElement} parent
     * @param {!shaka.ui.Controls} controls
     */
    constructor(parent, controls) {
      super(parent, controls);
  
      /** @private {!HTMLElement} */
      const div = shaka.util.Dom.createHTMLElement('div');
      div.classList.add('shaka-spacer');
      // Make screen readers ignore the spacer
      div.setAttribute('aria-hidden', true);
      this.parent.appendChild(div);
    }
  };
  
  /**
   * @implements {shaka.extern.IUIElement.Factory}
   * @final
   */
  shaka.ui.Spacer.Factory = class {
    /** @override */
    create(rootElement, controls) {
      return new shaka.ui.Spacer(rootElement, controls);
    }
  };
  
  shaka.ui.Controls.registerElement(
      'spacer', new shaka.ui.Spacer.Factory());
  