media_metadata_listener_samsung.h

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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef PPAPI_CPP_SAMSUNG_MEDIA_METADATA_LISTENER_SAMSUNG_H_
#define PPAPI_CPP_SAMSUNG_MEDIA_METADATA_LISTENER_SAMSUNG_H_

#include "ppapi/c/pp_resource.h"
#include "ppapi/c/samsung/ppp_media_player_samsung.h"

/// @file
/// This file defines a <code>MediaMetadataListener_Samsung</code> type
/// which allows plugin to receive media metadata changes events.
namespace pp {

class MediaPlayer_Samsung;

/// Listener for receiving media metadata changes.
class MediaMetadataListener_Samsung {
 public:
  virtual ~MediaMetadataListener_Samsung();

  /// Event is sent when information such as duration and video resolution
  /// has been determined after parsing the stream.
  virtual void OnMetadataLoaded();

  /// Duration of the media has been changed.
  ///
  /// @param[in] duration New duration of the played media.
  virtual void OnDurationChanged(PP_TimeDelta duration);

  /// Video size of played media has been changed.
  ///
  /// @param[in] size New video size.
  virtual void OnVideoSizeChanged(const PP_Size& size);

  /// Video bitrate of played media has been changed.
  ///
  /// @param[in] size New video bitrate.
  virtual void OnVideoBitrateChanged(uint32_t bitrate);

 protected:
  /// The default constructor which creates listener not attached
  /// to the player
  MediaMetadataListener_Samsung();

  /// Constructor which creates listener attached to the |player|.
  explicit MediaMetadataListener_Samsung(MediaPlayer_Samsung* player);

  /// Attaches listener to the |player|.
  void AttachTo(MediaPlayer_Samsung* player);

 private:
  void Detach();
  PP_Resource player_;

  // Disallow copy and assign
  MediaMetadataListener_Samsung(const MediaMetadataListener_Samsung&);
  MediaMetadataListener_Samsung& operator=(
      const MediaMetadataListener_Samsung&);
};

}  // namespace pp

#endif  // PPAPI_CPP_SAMSUNG_MEDIA_METADATA_LISTENER_SAMSUNG_H_