| /* |
| * Copyright (C) 2013 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef MediaKeySession_h |
| #define MediaKeySession_h |
| |
| #include "bindings/v8/ScriptWrappable.h" |
| #include "core/dom/ContextLifecycleObserver.h" |
| #include "core/events/EventTarget.h" |
| #include "platform/Timer.h" |
| #include "platform/drm/ContentDecryptionModuleSession.h" |
| #include "wtf/Deque.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/Uint8Array.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace WebCore { |
| |
| class ContentDecryptionModule; |
| class ContentDecryptionModuleSession; |
| class ExceptionState; |
| class GenericEventQueue; |
| class MediaKeyError; |
| class MediaKeys; |
| |
| // References are held by JS and MediaKeys. |
| // Because this object controls the lifetime of the ContentDecryptionModuleSession, |
| // it may outlive any references to it as long as the MediaKeys object is alive. |
| // The ContentDecryptionModuleSession has the same lifetime as this object. |
| class MediaKeySession |
| : public RefCounted<MediaKeySession>, public ScriptWrappable, public EventTargetWithInlineData, public ContextLifecycleObserver |
| , private ContentDecryptionModuleSessionClient { |
| REFCOUNTED_EVENT_TARGET(MediaKeySession); |
| public: |
| static PassRefPtr<MediaKeySession> create(ExecutionContext*, ContentDecryptionModule*, MediaKeys*); |
| ~MediaKeySession(); |
| |
| const String& keySystem() const { return m_keySystem; } |
| String sessionId() const; |
| |
| void setError(MediaKeyError*); |
| MediaKeyError* error() { return m_error.get(); } |
| |
| void generateKeyRequest(const String& mimeType, Uint8Array* initData); |
| void update(Uint8Array* key, ExceptionState&); |
| void close(); |
| |
| void enqueueEvent(PassRefPtr<Event>); |
| |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitkeyadded); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitkeyerror); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitkeymessage); |
| |
| virtual const AtomicString& interfaceName() const OVERRIDE; |
| virtual ExecutionContext* executionContext() const OVERRIDE; |
| |
| private: |
| MediaKeySession(ExecutionContext*, ContentDecryptionModule*, MediaKeys*); |
| void keyRequestTimerFired(Timer<MediaKeySession>*); |
| void addKeyTimerFired(Timer<MediaKeySession>*); |
| |
| // ContentDecryptionModuleSessionClient |
| virtual void keyAdded() OVERRIDE; |
| virtual void keyError(MediaKeyErrorCode, unsigned long systemCode) OVERRIDE; |
| virtual void keyMessage(const unsigned char* message, size_t messageLength, const KURL& destinationURL) OVERRIDE; |
| |
| String m_keySystem; |
| RefPtr<MediaKeyError> m_error; |
| OwnPtr<GenericEventQueue> m_asyncEventQueue; |
| OwnPtr<ContentDecryptionModuleSession> m_session; |
| // Used to remove the reference from the parent MediaKeys when close()'d. |
| MediaKeys* m_keys; |
| |
| struct PendingKeyRequest { |
| PendingKeyRequest(const String& mimeType, Uint8Array* initData) : mimeType(mimeType), initData(initData) { } |
| String mimeType; |
| RefPtr<Uint8Array> initData; |
| }; |
| Deque<PendingKeyRequest> m_pendingKeyRequests; |
| Timer<MediaKeySession> m_keyRequestTimer; |
| |
| Deque<RefPtr<Uint8Array> > m_pendingKeys; |
| Timer<MediaKeySession> m_addKeyTimer; |
| }; |
| |
| } |
| |
| #endif // MediaKeySession_h |