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 struct CdmConfig;
  25 class CdmContext;
  26 class CdmFactory;
  27 class CdmSessionAdapter;
  28 class WebContentDecryptionModuleSessionImpl;
  29
  30 class MEDIA_EXPORT WebContentDecryptionModuleImpl
  31     : public blink::WebContentDecryptionModule {
  32  public:
  33   static void Create(
  34       CdmFactory* cdm_factory,
  35       const base::string16& key_system,
  36       const blink::WebSecurityOrigin& security_origin,
  37       const CdmConfig& cdm_config,
  38       scoped_ptr<blink::WebContentDecryptionModuleResult> result);
  39
  40   virtual ~WebContentDecryptionModuleImpl();
  41
  42   // blink::WebContentDecryptionModule implementation.
  43   virtual blink::WebContentDecryptionModuleSession* createSession();
  44
  45   virtual void setServerCertificate(
  46       const uint8* server_certificate,
  47       size_t server_certificate_length,
  48       blink::WebContentDecryptionModuleResult result);
  49
  50   // Returns the CdmContext associated with this CDM, which must not be nullptr.
  51   // TODO(jrummell): Figure out lifetimes, as WMPI may still use the decryptor
  52   // after WebContentDecryptionModule is freed. http://crbug.com/330324
  53   CdmContext* GetCdmContext();
  54
  55  private:
  56   friend CdmSessionAdapter;
  57
  58   // Takes reference to |adapter|.
  59   WebContentDecryptionModuleImpl(scoped_refptr<CdmSessionAdapter> adapter);
  60
  61   scoped_refptr<CdmSessionAdapter> adapter_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(WebContentDecryptionModuleImpl);
  64 };
  65
  66 // Allow typecasting from blink type as this is the only implementation.
  67 inline WebContentDecryptionModuleImpl* ToWebContentDecryptionModuleImpl(
  68     blink::WebContentDecryptionModule* cdm) {
  69   return static_cast<WebContentDecryptionModuleImpl*>(cdm);
  70 }
  71
  72 }  // namespace media
  73
  74 #endif  // MEDIA_BLINK_WEBCONTENTDECRYPTIONMODULE_IMPL_H_