diff -r 000000000000 -r 4f2f89ce4247 WebCore/storage/IDBRequest.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WebCore/storage/IDBRequest.h Fri Sep 17 09:02:29 2010 +0300 @@ -0,0 +1,116 @@ +/* + * 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 "EventListener.h" +#include "EventNames.h" +#include "EventTarget.h" +#include "IDBAny.h" +#include "IDBCallbacks.h" +#include "Timer.h" + +namespace WebCore { + +class IDBDatabaseRequest; + +class IDBRequest : public IDBCallbacks, public EventTarget, public ActiveDOMObject { +public: + static PassRefPtr create(ScriptExecutionContext* context, PassRefPtr source) { return adoptRef(new IDBRequest(context, source)); } + virtual ~IDBRequest(); + + // Defined in the IDL + void abort(); + enum ReadyState { + INITIAL = 0, + LOADING = 1, + DONE = 2 + }; + unsigned short readyState() const { return m_readyState; } + PassRefPtr error() const { return m_error; } + PassRefPtr result() { return m_result; } + DEFINE_ATTRIBUTE_EVENT_LISTENER(success); + DEFINE_ATTRIBUTE_EVENT_LISTENER(error); + + // IDBCallbacks + virtual void onError(PassRefPtr); + virtual void onSuccess(); // For "null". + virtual void onSuccess(PassRefPtr); + virtual void onSuccess(PassRefPtr); + virtual void onSuccess(PassRefPtr); + virtual void onSuccess(PassRefPtr); + virtual void onSuccess(PassRefPtr); + + // EventTarget + virtual IDBRequest* toIDBRequest() { return this; } + + // ActiveDOMObject + virtual ScriptExecutionContext* scriptExecutionContext() const; + virtual void stop(); + virtual void suspend(); + virtual void resume(); + + using RefCounted::ref; + using RefCounted::deref; + +private: + IDBRequest(ScriptExecutionContext*, PassRefPtr source); + + void timerFired(Timer*); + void onEventCommon(); + + // EventTarget + virtual void refEventTarget() { ref(); } + virtual void derefEventTarget() { deref(); } + virtual EventTargetData* eventTargetData(); + virtual EventTargetData* ensureEventTargetData(); + + RefPtr m_source; + + RefPtr m_result; + RefPtr m_error; + + // Used to fire events asynchronously. + Timer m_timer; + RefPtr m_selfRef; // This is set to us iff there's an event pending. + + bool m_stopped; + bool m_aborted; + ReadyState m_readyState; + EventTargetData m_eventTargetData; +}; + +} // namespace WebCore + +#endif // ENABLE(INDEXED_DATABASE) + +#endif // IDBRequest_h