#ifndef IDBTransaction_h
#define IDBTransaction_h
#if ENABLE(INDEXED_DATABASE)
#include "ActiveDOMObject.h"
#include "DOMError.h"
#include "Event.h"
#include "EventListener.h"
#include "EventTarget.h"
#include "IDBDatabaseMetadata.h"
#include "IndexedDB.h"
#include "ScriptWrappable.h"
#include <wtf/HashSet.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class IDBCursor;
class IDBDatabase;
class IDBDatabaseBackend;
class IDBDatabaseError;
class IDBObjectStore;
class IDBOpenDBRequest;
struct IDBObjectStoreMetadata;
class IDBTransaction final : public ScriptWrappable, public RefCounted<IDBTransaction>, public EventTargetWithInlineData, public ActiveDOMObject {
public:
static Ref<IDBTransaction> create(ScriptExecutionContext*, int64_t, const Vector<String>& objectStoreNames, IndexedDB::TransactionMode, IDBDatabase*);
static Ref<IDBTransaction> create(ScriptExecutionContext*, int64_t, IDBDatabase*, IDBOpenDBRequest*, const IDBDatabaseMetadata& previousMetadata);
virtual ~IDBTransaction();
static const AtomicString& modeReadOnly();
static const AtomicString& modeReadWrite();
static const AtomicString& modeVersionChange();
static const AtomicString& modeReadOnlyLegacy();
static const AtomicString& modeReadWriteLegacy();
static IndexedDB::TransactionMode stringToMode(const String&, ExceptionCode&);
static const AtomicString& modeToString(IndexedDB::TransactionMode);
IDBDatabaseBackend* backendDB() const;
int64_t id() const { return m_id; }
bool isActive() const { return m_state == Active; }
bool isFinished() const { return m_state == Finished; }
bool isReadOnly() const { return m_mode == IndexedDB::TransactionMode::ReadOnly; }
bool isVersionChange() const { return m_mode == IndexedDB::TransactionMode::VersionChange; }
const String& mode() const;
IDBDatabase* db() const { return m_database.get(); }
PassRefPtr<DOMError> error() const { return m_error; }
PassRefPtr<IDBObjectStore> objectStore(const String& name, ExceptionCode&);
void abort(ExceptionCode&);
class OpenCursorNotifier {
public:
OpenCursorNotifier(PassRefPtr<IDBTransaction>, IDBCursor*);
~OpenCursorNotifier();
void cursorFinished();
private:
RefPtr<IDBTransaction> m_transaction;
IDBCursor* m_cursor;
};
void registerRequest(IDBRequest*);
void unregisterRequest(IDBRequest*);
void objectStoreCreated(const String&, PassRefPtr<IDBObjectStore>);
void objectStoreDeleted(const String&);
void setActive(bool);
void setError(PassRefPtr<DOMError>, const String& errorMessage);
void onAbort(PassRefPtr<IDBDatabaseError>);
void onComplete();
virtual EventTargetInterface eventTargetInterface() const override { return IDBTransactionEventTargetInterfaceType; }
virtual ScriptExecutionContext* scriptExecutionContext() const override { return ActiveDOMObject::scriptExecutionContext(); }
using EventTarget::dispatchEvent;
virtual bool dispatchEvent(PassRefPtr<Event>) override;
bool hasPendingActivity() const override;
using RefCounted<IDBTransaction>::ref;
using RefCounted<IDBTransaction>::deref;
private:
IDBTransaction(ScriptExecutionContext*, int64_t, const Vector<String>&, IndexedDB::TransactionMode, IDBDatabase*, IDBOpenDBRequest*, const IDBDatabaseMetadata&);
void enqueueEvent(PassRefPtr<Event>);
void closeOpenCursors();
void registerOpenCursor(IDBCursor*);
void unregisterOpenCursor(IDBCursor*);
bool canSuspendForPageCache() const override;
void stop() override;
const char* activeDOMObjectName() const override;
virtual void refEventTarget() override { ref(); }
virtual void derefEventTarget() override { deref(); }
enum State {
Inactive, Active, Finishing, Finished, };
int64_t m_id;
RefPtr<IDBDatabase> m_database;
const Vector<String> m_objectStoreNames;
IDBOpenDBRequest* m_openDBRequest;
const IndexedDB::TransactionMode m_mode;
State m_state;
bool m_hasPendingActivity;
bool m_contextStopped;
RefPtr<DOMError> m_error;
String m_errorMessage;
ListHashSet<RefPtr<IDBRequest>> m_requestList;
typedef HashMap<String, RefPtr<IDBObjectStore>> IDBObjectStoreMap;
IDBObjectStoreMap m_objectStoreMap;
typedef HashSet<RefPtr<IDBObjectStore>> IDBObjectStoreSet;
IDBObjectStoreSet m_deletedObjectStores;
typedef HashMap<RefPtr<IDBObjectStore>, IDBObjectStoreMetadata> IDBObjectStoreMetadataMap;
IDBObjectStoreMetadataMap m_objectStoreCleanupMap;
IDBDatabaseMetadata m_previousMetadata;
HashSet<IDBCursor*> m_openCursors;
};
}
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBTransaction_h