IDBCursorBackendImpl.cpp [plain text]
#include "config.h"
#include "IDBCursorBackendImpl.h"
#if ENABLE(INDEXED_DATABASE)
#include "CrossThreadTask.h"
#include "IDBBackingStore.h"
#include "IDBCallbacks.h"
#include "IDBDatabaseError.h"
#include "IDBDatabaseException.h"
#include "IDBKeyRange.h"
#include "IDBObjectStoreBackendImpl.h"
#include "IDBRequest.h"
#include "IDBTransactionBackendInterface.h"
#include "SerializedScriptValue.h"
namespace WebCore {
IDBCursorBackendImpl::IDBCursorBackendImpl(PassRefPtr<IDBBackingStore::Cursor> cursor, IDBCursor::Direction direction, CursorType cursorType, IDBTransactionBackendInterface* transaction, IDBObjectStoreBackendInterface* objectStore)
: m_cursor(cursor)
, m_direction(direction)
, m_cursorType(cursorType)
, m_transaction(transaction)
, m_objectStore(objectStore)
{
m_transaction->registerOpenCursor(this);
}
IDBCursorBackendImpl::~IDBCursorBackendImpl()
{
m_transaction->unregisterOpenCursor(this);
}
unsigned short IDBCursorBackendImpl::direction() const
{
return m_direction;
}
PassRefPtr<IDBKey> IDBCursorBackendImpl::key() const
{
return m_cursor->key();
}
PassRefPtr<IDBKey> IDBCursorBackendImpl::primaryKey() const
{
return m_cursor->primaryKey();
}
PassRefPtr<SerializedScriptValue> IDBCursorBackendImpl::value() const
{
ASSERT(m_cursorType != IndexKeyCursor);
return SerializedScriptValue::createFromWire(m_cursor->value());
}
void IDBCursorBackendImpl::update(PassRefPtr<SerializedScriptValue> value, PassRefPtr<IDBCallbacks> callbacks, ExceptionCode& ec)
{
if (!m_cursor || m_cursorType == IndexKeyCursor) {
ec = IDBDatabaseException::NOT_ALLOWED_ERR;
return;
}
m_objectStore->put(value, m_cursor->primaryKey(), IDBObjectStoreBackendInterface::CursorUpdate, callbacks, m_transaction.get(), ec);
}
void IDBCursorBackendImpl::continueFunction(PassRefPtr<IDBKey> prpKey, PassRefPtr<IDBCallbacks> prpCallbacks, ExceptionCode& ec)
{
RefPtr<IDBCursorBackendImpl> cursor = this;
RefPtr<IDBKey> key = prpKey;
RefPtr<IDBCallbacks> callbacks = prpCallbacks;
if (!m_transaction->scheduleTask(createCallbackTask(&IDBCursorBackendImpl::continueFunctionInternal, cursor, key, callbacks)))
ec = IDBDatabaseException::NOT_ALLOWED_ERR;
}
void IDBCursorBackendImpl::continueFunctionInternal(ScriptExecutionContext*, PassRefPtr<IDBCursorBackendImpl> prpCursor, PassRefPtr<IDBKey> prpKey, PassRefPtr<IDBCallbacks> callbacks)
{
RefPtr<IDBCursorBackendImpl> cursor = prpCursor;
RefPtr<IDBKey> key = prpKey;
if (!cursor->m_cursor || !cursor->m_cursor->continueFunction(key.get())) {
cursor->m_cursor = 0;
callbacks->onSuccess(SerializedScriptValue::nullValue());
return;
}
callbacks->onSuccess(cursor.get());
}
void IDBCursorBackendImpl::deleteFunction(PassRefPtr<IDBCallbacks> prpCallbacks, ExceptionCode& ec)
{
if (!m_cursor || m_cursorType == IndexKeyCursor) {
ec = IDBDatabaseException::NOT_ALLOWED_ERR;
return;
}
m_objectStore->deleteFunction(m_cursor->primaryKey(), prpCallbacks, m_transaction.get(), ec);
}
void IDBCursorBackendImpl::close()
{
if (m_cursor)
m_cursor->close();
}
}
#endif // ENABLE(INDEXED_DATABASE)