media/blink/webmediaplayer_delegate.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_BLINK_WEBMEDIAPLAYER_DELEGATE_H_
   6 #define MEDIA_BLINK_WEBMEDIAPLAYER_DELEGATE_H_
   7
   8 namespace blink {
   9 class WebMediaPlayer;
  10 }
  11 namespace media {
  12
  13 // An interface to allow a WebMediaPlayerImpl to communicate changes of state
  14 // to objects that need to know.
  15 class WebMediaPlayerDelegate {
  16  public:
  17   WebMediaPlayerDelegate() {}
  18
  19   // The specified player started playing media.
  20   virtual void DidPlay(blink::WebMediaPlayer* player) = 0;
  21
  22   // The specified player stopped playing media.
  23   virtual void DidPause(blink::WebMediaPlayer* player) = 0;
  24
  25   // The specified player was destroyed. Do not call any methods on it.
  26   virtual void PlayerGone(blink::WebMediaPlayer* player) = 0;
  27
  28  protected:
  29   virtual ~WebMediaPlayerDelegate() {}
  30 };
  31
  32 }  // namespace media
  33
  34 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_DELEGATE_H_