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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.
*
* 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.
*/
#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)
{
}
IDBCursorBackendImpl::~IDBCursorBackendImpl()
{
}
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;
}
// IMPORTANT: If this ever 1) fires an 'error' event and 2) it's possible to fire another event afterwards,
// IDBRequest::hasPendingActivity() will need to be modified to handle this!!!
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);
}
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
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