text: /**
   * @license
   * Copyright 2015 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.
   */
  
  CLASS({
    package: 'foam.memento',
    name: 'WindowHashValue',
  
    imports: [
      'window'
    ],
  
    methods: {
      get: function() { return this.window.location.hash ? this.window.location.hash.substring(1) : ''; },
  
      set: function(value) {
        this.window.location.hash = value;
      },
  
      addListener: function(listener) {
        this.window.addEventListener('hashchange', listener, false);
      },
  
      removeListener: function(listener) {
        this.window.removeEventListener('hashchange', listener, false);
      },
  
      toString: function() { return "WindowHashValue(" + this.get() + ")"; }
    }
  });
  