text: /*
   * Copyright (C) 2016 Apple Inc. All Rights Reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. 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.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
   */
  
  class FullscreenSupport extends MediaControllerSupport
  {
  
      // Protected
  
      get control()
      {
          return this.mediaController.controls.fullscreenButton;
      }
  
      get mediaEvents()
      {
          return ["loadedmetadata"];
      }
  
      get tracksToMonitor()
      {
          return [this.mediaController.media.videoTracks];
      }
  
      buttonWasPressed(control)
      {
          const media = this.mediaController.media;
          if (this.mediaController.isFullscreen)
              media.webkitExitFullscreen();
          else
              media.webkitEnterFullscreen();
      }
  
      syncControl()
      {
          const control = this.control;
          const media = this.mediaController.media;
          control.enabled = !this.mediaController.isAudio && (media.readyState < HTMLMediaElement.HAVE_METADATA || media.webkitSupportsFullscreen);
          control.isFullScreen = this.mediaController.isFullscreen;
      }
  
  }
  