content/renderer/media/webcontentdecryptionmodulesession_impl.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 CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULESESSION_IMPL_H_
   6 #define CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULESESSION_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/callback.h"
  13 #include "media/base/media_keys.h"
  14 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleSession.h"
  15 #include "third_party/WebKit/public/platform/WebString.h"
  16
  17 namespace media {
  18 class MediaKeys;
  19 }
  20
  21 namespace content {
  22
  23 class WebContentDecryptionModuleSessionImpl
  24     : public blink::WebContentDecryptionModuleSession {
  25  public:
  26   typedef base::Callback<void(uint32 session_id)> SessionClosedCB;
  27
  28   WebContentDecryptionModuleSessionImpl(
  29       uint32 session_id,
  30       media::MediaKeys* media_keys,
  31       Client* client,
  32       const SessionClosedCB& session_closed_cb);
  33   virtual ~WebContentDecryptionModuleSessionImpl();
  34
  35   // blink::WebContentDecryptionModuleSession implementation.
  36   virtual blink::WebString sessionId() const;
  37   virtual void initializeNewSession(const blink::WebString& mime_type,
  38                                     const uint8* init_data,
  39                                     size_t init_data_length);
  40   virtual void update(const uint8* response, size_t response_length);
  41   virtual void release();
  42
  43   // TODO(xhwang): Drop generateKeyRequest() and close() after blink side is
  44   // updated.
  45   virtual void generateKeyRequest(const blink::WebString& mime_type,
  46                                   const uint8* init_data,
  47                                   size_t init_data_length);
  48   virtual void close();
  49
  50   // Callbacks.
  51   void OnSessionCreated(const std::string& web_session_id);
  52   void OnSessionMessage(const std::vector<uint8>& message,
  53                         const std::string& destination_url);
  54   void OnSessionReady();
  55   void OnSessionClosed();
  56   void OnSessionError(media::MediaKeys::KeyError error_code, int system_code);
  57
  58  private:
  59   // Non-owned pointers.
  60   media::MediaKeys* media_keys_;
  61   Client* client_;
  62
  63   SessionClosedCB session_closed_cb_;
  64
  65   // Web session ID is the app visible ID for this session generated by the CDM.
  66   // This value is not set until the CDM calls OnSessionCreated().
  67   blink::WebString web_session_id_;
  68
  69   // Session ID is used to uniquely track this object so that CDM callbacks
  70   // can get routed to the correct object.
  71   const uint32 session_id_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(WebContentDecryptionModuleSessionImpl);
  74 };
  75
  76 }  // namespace content
  77
  78 #endif  // CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULESESSION_IMPL_H_