| /* |
| * 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. |
| */ |
| |
| #ifndef IDBCursor_h |
| #define IDBCursor_h |
| |
| #include "bindings/v8/ScriptValue.h" |
| #include "bindings/v8/ScriptWrappable.h" |
| #include "modules/indexeddb/IDBKey.h" |
| #include "modules/indexeddb/IDBTransaction.h" |
| #include "modules/indexeddb/IndexedDB.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace WebCore { |
| |
| class DOMRequestState; |
| class ExceptionState; |
| class IDBAny; |
| class IDBCallbacks; |
| class IDBCursorBackendInterface; |
| class IDBRequest; |
| class ScriptExecutionContext; |
| |
| class IDBCursor : public ScriptWrappable, public RefCounted<IDBCursor> { |
| public: |
| static const AtomicString& directionNext(); |
| static const AtomicString& directionNextUnique(); |
| static const AtomicString& directionPrev(); |
| static const AtomicString& directionPrevUnique(); |
| |
| static IndexedDB::CursorDirection stringToDirection(const String& modeString, ExceptionState&); |
| static const AtomicString& directionToString(unsigned short mode); |
| |
| static PassRefPtr<IDBCursor> create(PassRefPtr<IDBCursorBackendInterface>, IndexedDB::CursorDirection, IDBRequest*, IDBAny* source, IDBTransaction*); |
| virtual ~IDBCursor(); |
| |
| // Implement the IDL |
| const String& direction() const; |
| const ScriptValue& key() const; |
| const ScriptValue& primaryKey() const; |
| const ScriptValue& value() const; |
| IDBAny* source() const; |
| |
| PassRefPtr<IDBRequest> update(ScriptState*, ScriptValue&, ExceptionState&); |
| void advance(unsigned long, ExceptionState&); |
| void continueFunction(ScriptExecutionContext*, const ScriptValue& key, ExceptionState&); |
| PassRefPtr<IDBRequest> deleteFunction(ScriptExecutionContext*, ExceptionState&); |
| |
| void continueFunction(PassRefPtr<IDBKey>, ExceptionState&); |
| void postSuccessHandlerCallback(); |
| void close(); |
| void setValueReady(DOMRequestState*, PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, ScriptValue&); |
| PassRefPtr<IDBKey> idbPrimaryKey() { return m_currentPrimaryKey; } |
| |
| protected: |
| IDBCursor(PassRefPtr<IDBCursorBackendInterface>, IndexedDB::CursorDirection, IDBRequest*, IDBAny* source, IDBTransaction*); |
| virtual bool isKeyCursor() const { return true; } |
| |
| private: |
| PassRefPtr<IDBObjectStore> effectiveObjectStore(); |
| |
| bool isDeleted() const; |
| |
| RefPtr<IDBCursorBackendInterface> m_backend; |
| RefPtr<IDBRequest> m_request; |
| const IndexedDB::CursorDirection m_direction; |
| RefPtr<IDBAny> m_source; |
| RefPtr<IDBTransaction> m_transaction; |
| IDBTransaction::OpenCursorNotifier m_transactionNotifier; |
| bool m_gotValue; |
| // These values are held because m_backend may advance while they |
| // are still valid for the current success handlers. |
| ScriptValue m_currentKeyValue; |
| ScriptValue m_currentPrimaryKeyValue; |
| RefPtr<IDBKey> m_currentKey; |
| RefPtr<IDBKey> m_currentPrimaryKey; |
| ScriptValue m_currentValue; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // IDBCursor_h |