media/blink/webcontentdecryptionmodule_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 MEDIA_BLINK_WEBCONTENTDECRYPTIONMODULE_IMPL_H_
   6 #define MEDIA_BLINK_WEBCONTENTDECRYPTIONMODULE_IMPL_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/string16.h"
  11 #include "media/base/media_export.h"
  12 #include "third_party/WebKit/public/platform/WebContentDecryptionModule.h"
  13 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h"
  14
  15 namespace blink {
  16 #if defined(ENABLE_PEPPER_CDMS)
  17 class WebLocalFrame;
  18 #endif
  19 class WebSecurityOrigin;
  20 }
  21
  22 namespace media {
  23
  24 class CdmContext;
  25 class CdmFactory;
  26 class CdmSessionAdapter;
  27 class WebContentDecryptionModuleSessionImpl;
  28
  29 class MEDIA_EXPORT WebContentDecryptionModuleImpl
  30     : public blink::WebContentDecryptionModule {
  31  public:
  32   static void Create(CdmFactory* cdm_factory,
  33                      const base::string16& key_system,
  34                      bool allow_distinctive_identifier,
  35                      bool allow_persistent_state,
  36                      const blink::WebSecurityOrigin& security_origin,
  37                      blink::WebContentDecryptionModuleResult result);
  38
  39   virtual ~WebContentDecryptionModuleImpl();
  40
  41   // blink::WebContentDecryptionModule implementation.
  42   virtual blink::WebContentDecryptionModuleSession* createSession();
  43
  44   virtual void setServerCertificate(
  45       const uint8* server_certificate,
  46       size_t server_certificate_length,
  47       blink::WebContentDecryptionModuleResult result);
  48
  49   // Returns the CdmContext associated with this CDM, which must not be nullptr.
  50   // TODO(jrummell): Figure out lifetimes, as WMPI may still use the decryptor
  51   // after WebContentDecryptionModule is freed. http://crbug.com/330324
  52   CdmContext* GetCdmContext();
  53
  54  private:
  55   friend CdmSessionAdapter;
  56
  57   // Takes reference to |adapter|.
  58   WebContentDecryptionModuleImpl(scoped_refptr<CdmSessionAdapter> adapter);
  59
  60   scoped_refptr<CdmSessionAdapter> adapter_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(WebContentDecryptionModuleImpl);
  63 };
  64
  65 // Allow typecasting from blink type as this is the only implementation.
  66 inline WebContentDecryptionModuleImpl* ToWebContentDecryptionModuleImpl(
  67     blink::WebContentDecryptionModule* cdm) {
  68   return static_cast<WebContentDecryptionModuleImpl*>(cdm);
  69 }
  70
  71 }  // namespace media
  72
  73 #endif  // MEDIA_BLINK_WEBCONTENTDECRYPTIONMODULE_IMPL_H_