#ifndef IDBTransaction_h
#define IDBTransaction_h
#if ENABLE(INDEXED_DATABASE)
#include "ActiveDOMObject.h"
#include "DOMStringList.h"
#include "Event.h"
#include "EventListener.h"
#include "EventNames.h"
#include "EventTarget.h"
#include "IDBTransactionBackendInterface.h"
#include "IDBTransactionCallbacks.h"
#include <wtf/HashSet.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class IDBCursor;
class IDBDatabase;
class IDBObjectStore;
class IDBTransaction : public IDBTransactionCallbacks, public EventTarget, public ActiveDOMObject {
public:
static PassRefPtr<IDBTransaction> create(ScriptExecutionContext*, PassRefPtr<IDBTransactionBackendInterface>, IDBDatabase*);
virtual ~IDBTransaction();
enum Mode {
READ_ONLY = 0,
READ_WRITE = 1,
VERSION_CHANGE = 2
};
IDBTransactionBackendInterface* backend() const;
bool finished() const;
unsigned short mode() const;
IDBDatabase* db() const;
PassRefPtr<IDBObjectStore> objectStore(const String& name, ExceptionCode&);
void abort();
class OpenCursorNotifier {
public:
OpenCursorNotifier(PassRefPtr<IDBTransaction>, IDBCursor*);
~OpenCursorNotifier();
private:
RefPtr<IDBTransaction> m_transaction;
IDBCursor* m_cursor;
};
void registerRequest(IDBRequest*);
void unregisterRequest(IDBRequest*);
void objectStoreCreated(const String&, PassRefPtr<IDBObjectStore>);
void objectStoreDeleted(const String&);
DEFINE_ATTRIBUTE_EVENT_LISTENER(abort);
DEFINE_ATTRIBUTE_EVENT_LISTENER(complete);
DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
virtual void onAbort();
virtual void onComplete();
virtual const AtomicString& interfaceName() const;
virtual ScriptExecutionContext* scriptExecutionContext() const;
virtual bool dispatchEvent(PassRefPtr<Event>);
bool dispatchEvent(PassRefPtr<Event> event, ExceptionCode& ec) { return EventTarget::dispatchEvent(event, ec); }
virtual bool hasPendingActivity() const OVERRIDE;
virtual bool canSuspend() const OVERRIDE;
virtual void stop() OVERRIDE;
using RefCounted<IDBTransactionCallbacks>::ref;
using RefCounted<IDBTransactionCallbacks>::deref;
private:
IDBTransaction(ScriptExecutionContext*, PassRefPtr<IDBTransactionBackendInterface>, IDBDatabase*);
void enqueueEvent(PassRefPtr<Event>);
void closeOpenCursors();
void registerOpenCursor(IDBCursor*);
void unregisterOpenCursor(IDBCursor*);
virtual void refEventTarget() { ref(); }
virtual void derefEventTarget() { deref(); }
virtual EventTargetData* eventTargetData();
virtual EventTargetData* ensureEventTargetData();
RefPtr<IDBTransactionBackendInterface> m_backend;
RefPtr<IDBDatabase> m_database;
unsigned short m_mode;
bool m_transactionFinished; bool m_contextStopped;
ListHashSet<IDBRequest*> m_childRequests;
typedef HashMap<String, RefPtr<IDBObjectStore> > IDBObjectStoreMap;
IDBObjectStoreMap m_objectStoreMap;
HashSet<IDBCursor*> m_openCursors;
EventTargetData m_eventTargetData;
};
}
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBTransaction_h