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/*
* 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
#if ENABLE(ENCRYPTED_MEDIA_V2)
#include "ContextDestructionObserver.h"
#include "EventTarget.h"
#include "ExceptionCode.h"
#include "Timer.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 GenericEventQueue;
class MediaKeyError;
class MediaKeys;
class CDMSession;
class MediaKeySession : public RefCounted<MediaKeySession>, public EventTarget, public ContextDestructionObserver {
public:
static PassRefPtr<MediaKeySession> create(ScriptExecutionContext*, MediaKeys*, const String& keySystem);
~MediaKeySession();
const String& keySystem() const { return m_keySystem; }
const String& sessionId() const;
void setError(MediaKeyError*);
MediaKeyError* error() { return m_error.get(); }
void setKeys(MediaKeys* keys) { m_keys = keys; }
MediaKeys* keys() const { return m_keys; }
void generateKeyRequest(const String& mimeType, Uint8Array* initData);
void update(Uint8Array* key, ExceptionCode&);
void close();
using RefCounted<MediaKeySession>::ref;
using RefCounted<MediaKeySession>::deref;
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 ScriptExecutionContext* scriptExecutionContext() const OVERRIDE;
protected:
MediaKeySession(ScriptExecutionContext*, MediaKeys*, const String& keySystem);
void keyRequestTimerFired(Timer<MediaKeySession>*);
void addKeyTimerFired(Timer<MediaKeySession>*);
MediaKeys* m_keys;
String m_keySystem;
String m_sessionId;
RefPtr<MediaKeyError> m_error;
OwnPtr<GenericEventQueue> m_asyncEventQueue;
OwnPtr<CDMSession> m_session;
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;
private:
virtual void refEventTarget() OVERRIDE { ref(); }
virtual void derefEventTarget() OVERRIDE { deref(); }
virtual EventTargetData* eventTargetData() OVERRIDE { return &m_eventTargetData; }
virtual EventTargetData* ensureEventTargetData() OVERRIDE { return &m_eventTargetData; }
EventTargetData m_eventTargetData;
};
}
#endif // ENABLE(ENCRYPTED_MEDIA_V2)
#endif // MediaKeySession_h
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