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/*
* Copyright (C) 2010 Google 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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 IDBRequest_h
#define IDBRequest_h
#if ENABLE(INDEXED_DATABASE)
#include "ActiveDOMObject.h"
#include "Event.h"
#include "EventListener.h"
#include "EventNames.h"
#include "EventTarget.h"
#include "ExceptionCode.h"
#include "IDBAny.h"
#include "IDBCallbacks.h"
namespace WebCore {
class IDBTransaction;
class IDBRequest : public IDBCallbacks, public EventTarget, public ActiveDOMObject {
public:
static PassRefPtr<IDBRequest> create(ScriptExecutionContext*, PassRefPtr<IDBAny> source, IDBTransaction*);
virtual ~IDBRequest();
PassRefPtr<IDBAny> result(ExceptionCode&) const;
unsigned short errorCode(ExceptionCode&) const;
String webkitErrorMessage(ExceptionCode&) const;
PassRefPtr<IDBAny> source() const;
PassRefPtr<IDBTransaction> transaction() const;
// Defined in the IDL
enum ReadyState {
LOADING = 1,
DONE = 2,
EarlyDeath = 3
};
unsigned short readyState() const;
DEFINE_ATTRIBUTE_EVENT_LISTENER(success);
DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
void markEarlyDeath();
bool resetReadyState(IDBTransaction*);
void setCursorType(IDBCursorBackendInterface::CursorType);
IDBAny* source();
void abort();
// IDBCallbacks
virtual void onError(PassRefPtr<IDBDatabaseError>);
virtual void onSuccess(PassRefPtr<IDBDatabaseBackendInterface>);
virtual void onSuccess(PassRefPtr<IDBCursorBackendInterface>);
virtual void onSuccess(PassRefPtr<IDBKey>);
virtual void onSuccess(PassRefPtr<IDBTransactionBackendInterface>);
virtual void onSuccess(PassRefPtr<SerializedScriptValue>);
virtual void onBlocked();
// ActiveDOMObject
virtual bool hasPendingActivity() const;
// EventTarget
virtual IDBRequest* toIDBRequest() { return this; }
virtual ScriptExecutionContext* scriptExecutionContext() const;
virtual bool dispatchEvent(PassRefPtr<Event>);
bool dispatchEvent(PassRefPtr<Event> event, ExceptionCode& ec) { return EventTarget::dispatchEvent(event, ec); }
virtual void uncaughtExceptionInEventHandler();
using ThreadSafeRefCounted<IDBCallbacks>::ref;
using ThreadSafeRefCounted<IDBCallbacks>::deref;
protected:
IDBRequest(ScriptExecutionContext*, PassRefPtr<IDBAny> source, IDBTransaction*);
void enqueueEvent(PassRefPtr<Event>);
RefPtr<IDBAny> m_result;
unsigned short m_errorCode;
String m_errorMessage;
private:
// EventTarget
virtual void refEventTarget() { ref(); }
virtual void derefEventTarget() { deref(); }
virtual EventTargetData* eventTargetData();
virtual EventTargetData* ensureEventTargetData();
RefPtr<IDBAny> m_source;
RefPtr<IDBTransaction> m_transaction;
ReadyState m_readyState;
bool m_finished; // Is it possible that we'll fire any more events? If not, we're finished.
Vector<RefPtr<Event> > m_enqueuedEvents;
// Only used if the result type will be a cursor.
IDBCursorBackendInterface::CursorType m_cursorType;
EventTargetData m_eventTargetData;
};
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBRequest_h
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