| /* |
| * 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) |