text: /**
   * Copyright 2018 Google Inc. All rights reserved.
   *
   * 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.
   */
  
  export class ToolbarComponent {
    constructor() {
      this.element = document.createElement('toolbar-component');
      this._left = document.createElement('toolbar-section');
      this._left.classList.add('left');
      this._middle = document.createElement('toolbar-section');
      this._middle.classList.add('middle');
      this._right = document.createElement('toolbar-section');
      this._right.classList.add('right');
      this.element.appendChild(this._left);
      this.element.appendChild(this._middle);
      this.element.appendChild(this._right);
    }
  
    left() {
      return this._left;
    }
  
    middle() {
      return this._middle;
    }
  
    right() {
      return this._right;
    }
  }
  
  