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      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 CONTENT_RENDERER_MEDIA_TEXTTRACK_IMPL_H_
      6 #define CONTENT_RENDERER_MEDIA_TEXTTRACK_IMPL_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "media/base/text_track.h"
     13 
     14 namespace base {
     15 class MessageLoopProxy;
     16 }
     17 
     18 namespace blink {
     19 class WebInbandTextTrackClient;
     20 class WebMediaPlayerClient;
     21 }
     22 
     23 namespace content {
     24 
     25 class WebInbandTextTrackImpl;
     26 
     27 class TextTrackImpl : public media::TextTrack {
     28  public:
     29   // Constructor assumes ownership of the |text_track| object.
     30   TextTrackImpl(const scoped_refptr<base::MessageLoopProxy>& message_loop,
     31                 blink::WebMediaPlayerClient* client,
     32                 scoped_ptr<WebInbandTextTrackImpl> text_track);
     33 
     34   virtual ~TextTrackImpl();
     35 
     36   virtual void addWebVTTCue(const base::TimeDelta& start,
     37                             const base::TimeDelta& end,
     38                             const std::string& id,
     39                             const std::string& content,
     40                             const std::string& settings) OVERRIDE;
     41 
     42  private:
     43   static void OnAddCue(WebInbandTextTrackImpl* text_track,
     44                        const base::TimeDelta& start,
     45                        const base::TimeDelta& end,
     46                        const std::string& id,
     47                        const std::string& content,
     48                        const std::string& settings);
     49 
     50   static void OnRemoveTrack(blink::WebMediaPlayerClient* client,
     51                             scoped_ptr<WebInbandTextTrackImpl> text_track);
     52 
     53   scoped_refptr<base::MessageLoopProxy> message_loop_;
     54   blink::WebMediaPlayerClient* client_;
     55   scoped_ptr<WebInbandTextTrackImpl> text_track_;
     56   DISALLOW_COPY_AND_ASSIGN(TextTrackImpl);
     57 };
     58 
     59 }  // namespace content
     60 
     61 #endif  // CONTENT_RENDERER_MEDIA_TEXTTRACK_IMPL_H_
     62 
     63