| // Copyright 2013 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 CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULESESSION_IMPL_H_ |
| #define CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULESESSION_IMPL_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/callback.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "media/base/media_keys.h" |
| #include "third_party/WebKit/public/platform/WebContentDecryptionModuleSession.h" |
| #include "third_party/WebKit/public/platform/WebString.h" |
| |
| namespace media { |
| class MediaKeys; |
| } |
| |
| namespace content { |
| class CdmSessionAdapter; |
| |
| class WebContentDecryptionModuleSessionImpl |
| : public blink::WebContentDecryptionModuleSession { |
| public: |
| WebContentDecryptionModuleSessionImpl( |
| const scoped_refptr<CdmSessionAdapter>& adapter); |
| virtual ~WebContentDecryptionModuleSessionImpl(); |
| |
| // blink::WebContentDecryptionModuleSession implementation. |
| virtual void setClientInterface(Client* client); |
| virtual blink::WebString sessionId() const; |
| // TODO(jrummell): Remove the next 3 methods once blink updated. |
| virtual void initializeNewSession(const blink::WebString& mime_type, |
| const uint8* init_data, |
| size_t init_data_length); |
| virtual void update(const uint8* response, size_t response_length); |
| virtual void release(); |
| virtual void initializeNewSession( |
| const blink::WebString& init_data_type, |
| const uint8* init_data, |
| size_t init_data_length, |
| const blink::WebString& session_type, |
| blink::WebContentDecryptionModuleResult result); |
| virtual void update(const uint8* response, |
| size_t response_length, |
| blink::WebContentDecryptionModuleResult result); |
| virtual void release(blink::WebContentDecryptionModuleResult result); |
| |
| // Callbacks. |
| void OnSessionMessage(const std::vector<uint8>& message, |
| const GURL& destination_url); |
| void OnSessionReady(); |
| void OnSessionClosed(); |
| void OnSessionError(media::MediaKeys::Exception exception_code, |
| uint32 system_code, |
| const std::string& error_message); |
| |
| private: |
| typedef std::map<uint32, blink::WebContentDecryptionModuleResult> ResultMap; |
| |
| // These function are used as callbacks when CdmPromise resolves/rejects. |
| // |result_index| = kReservedIndex means that there is no |
| // WebContentDecryptionModuleResult. |
| void SessionCreated(uint32 result_index, const std::string& web_session_id); |
| void SessionUpdatedOrReleased(uint32 result_index); |
| void SessionError(uint32 result_index, |
| media::MediaKeys::Exception exception_code, |
| uint32 system_code, |
| const std::string& error_message); |
| |
| // As initializeNewSession(), update(), and release() get passed a |
| // WebContentDecryptionModuleResult, keep track of them since this class owns |
| // it and needs to keep them around until completed. Returns the index used |
| // to locate the WebContentDecryptionModuleResult when the operation is |
| // complete. |
| uint32 AddResult(blink::WebContentDecryptionModuleResult result); |
| |
| scoped_refptr<CdmSessionAdapter> adapter_; |
| |
| // Non-owned pointer. |
| Client* client_; |
| |
| // Web session ID is the app visible ID for this session generated by the CDM. |
| // This value is not set until the CDM resolves the initializeNewSession() |
| // promise. |
| std::string web_session_id_; |
| |
| // Don't pass more than 1 close() event to blink:: |
| // TODO(jrummell): Remove this once blink tests handle close() promise and |
| // closed() event. |
| bool is_closed_; |
| |
| // Keep track of all the outstanding WebContentDecryptionModuleResult objects. |
| uint32 next_available_result_index_; |
| ResultMap outstanding_results_; |
| |
| // Since promises will live until they are fired, use a weak reference when |
| // creating a promise in case this class disappears before the promise |
| // actually fires. |
| base::WeakPtrFactory<WebContentDecryptionModuleSessionImpl> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WebContentDecryptionModuleSessionImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULESESSION_IMPL_H_ |