1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * Copyright (C) 2013 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#ifndef IDBCursorBackendOperations_h 28#define IDBCursorBackendOperations_h 29 30#if ENABLE(INDEXED_DATABASE) 31 32#include "IDBCursorBackend.h" 33#include "IDBOperation.h" 34 35namespace WebCore { 36 37class CursorIterationOperation : public IDBOperation { 38public: 39 static PassRefPtr<IDBOperation> create(PassRefPtr<IDBCursorBackend> cursor, PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks> callbacks) 40 { 41 return adoptRef(new CursorIterationOperation(cursor, key, callbacks)); 42 } 43 virtual void perform(std::function<void()> completionCallback) override final; 44 45 int64_t cursorID() const { return m_cursor->id(); } 46 IDBKey* key() const { return m_key.get(); } 47 48private: 49 CursorIterationOperation(PassRefPtr<IDBCursorBackend> cursor, PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks> callbacks) 50 : m_cursor(cursor) 51 , m_key(key) 52 , m_callbacks(callbacks) 53 { 54 } 55 56 RefPtr<IDBCursorBackend> m_cursor; 57 RefPtr<IDBKey> m_key; 58 RefPtr<IDBCallbacks> m_callbacks; 59}; 60 61class CursorAdvanceOperation : public IDBOperation { 62public: 63 static PassRefPtr<IDBOperation> create(PassRefPtr<IDBCursorBackend> cursor, unsigned long count, PassRefPtr<IDBCallbacks> callbacks) 64 { 65 return adoptRef(new CursorAdvanceOperation(cursor, count, callbacks)); 66 } 67 virtual void perform(std::function<void()> completionCallback) override final; 68 69 int64_t cursorID() const { return m_cursor->id(); } 70 unsigned long count() const { return m_count; } 71 72private: 73 CursorAdvanceOperation(PassRefPtr<IDBCursorBackend> cursor, unsigned long count, PassRefPtr<IDBCallbacks> callbacks) 74 : m_cursor(cursor) 75 , m_count(count) 76 , m_callbacks(callbacks) 77 { 78 } 79 80 RefPtr<IDBCursorBackend> m_cursor; 81 unsigned long m_count; 82 RefPtr<IDBCallbacks> m_callbacks; 83}; 84 85} // namespace WebCore 86 87#endif // ENABLE(INDEXED_DATABASE) 88#endif // IDBCursorBackendOperations_h 89