text: /**
   * The copyright in this software is being made available under the BSD License,
   * included below. This software may be subject to other third party and contributor
   * rights, including patent rights, and no such rights are granted under this license.
   *
   * Copyright (c) 2013, Dash Industry Forum.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   *  * Redistributions of source code must retain the above copyright notice, this
   *  list of conditions and the following disclaimer.
   *  * Redistributions in binary form must reproduce the above copyright notice,
   *  this list of conditions and the following disclaimer in the documentation and/or
   *  other materials provided with the distribution.
   *  * Neither the name of Dash Industry Forum nor the names of its
   *  contributors may be used to endorse or promote products derived from this software
   *  without specific prior written permission.
   *
   *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
   *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   *  POSSIBILITY OF SUCH DAMAGE.
   */
  
  import FactoryMaker from '../../../core/FactoryMaker.js';
  import CustomTimeRanges from '../../utils/CustomTimeRanges.js';
  
  function RangeController(config) {
  
      let useWallClockTime = false;
      let context = this.context;
      let instance,
          ranges;
  
      let mediaElement = config.mediaElement;
  
      function initialize(rs) {
          if (rs && rs.length) {
              rs.forEach(r => {
                  var start = r.starttime;
                  var end = start + r.duration;
  
                  ranges.add(start, end);
              });
  
              useWallClockTime = !!rs[0]._useWallClockTime;
          }
      }
  
      function reset() {
          ranges.clear();
      }
  
      function setup() {
          ranges = CustomTimeRanges(context).create();
      }
  
      function isEnabled() {
          var numRanges = ranges.length;
          var time;
  
          if (!numRanges) {
              return true;
          }
  
          // When not present, DASH Metrics reporting is requested
          // for the whole duration of the content.
          time = useWallClockTime ?
                  (new Date().getTime() / 1000) :
                  mediaElement.currentTime;
  
          for (var i = 0; i < numRanges; i += 1) {
              let start = ranges.start(i);
              let end = ranges.end(i);
  
              if ((start <= time) && (time < end)) {
                  return true;
              }
          }
  
          return false;
      }
  
      instance = {
          initialize: initialize,
          reset:      reset,
          isEnabled:  isEnabled
      };
  
      setup();
  
      return instance;
  }
  
  RangeController.__dashjs_factory_name = 'RangeController';
  export default FactoryMaker.getClassFactory(RangeController);
  