text: /*
   * Copyright © 2016-2018 The Thingsboard Authors
   * Modifications © 2017-2018 Hashmap, 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.
   */
  export default angular.module('tempus.filters.keyboardShortcut', [])
      .filter('keyboardShortcut', KeyboardShortcut)
      .name;
  
  /*@ngInject*/
  function KeyboardShortcut($window) {
      return function(str) {
          if (!str) return;
          var keys = str.split('-');
          var isOSX = /Mac OS X/.test($window.navigator.userAgent);
  
          var seperator = (!isOSX || keys.length > 2) ? '+' : '';
  
          var abbreviations = {
              M: isOSX ? '⌘' : 'Ctrl',
              A: isOSX ? 'Option' : 'Alt',
              S: 'Shift'
          };
  
          return keys.map(function(key, index) {
              var last = index == keys.length - 1;
              return last ? key : abbreviations[key];
          }).join(seperator);
      };
  }
  