1/* 2 * Copyright (C) 2007, 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28#include "config.h" 29#include "modules/webdatabase/SQLStatement.h" 30 31#include "modules/webdatabase/Database.h" 32#include "modules/webdatabase/DatabaseManager.h" 33#include "modules/webdatabase/SQLError.h" 34#include "modules/webdatabase/SQLStatementBackend.h" 35#include "modules/webdatabase/SQLStatementCallback.h" 36#include "modules/webdatabase/SQLStatementErrorCallback.h" 37#include "modules/webdatabase/SQLTransaction.h" 38#include "modules/webdatabase/sqlite/SQLiteDatabase.h" 39#include "modules/webdatabase/sqlite/SQLiteStatement.h" 40#include "platform/Logging.h" 41#include "wtf/text/CString.h" 42 43namespace blink { 44 45PassOwnPtrWillBeRawPtr<SQLStatement> SQLStatement::create(Database* database, 46 SQLStatementCallback* callback, SQLStatementErrorCallback* errorCallback) 47{ 48 return adoptPtrWillBeNoop(new SQLStatement(database, callback, errorCallback)); 49} 50 51SQLStatement::SQLStatement(Database* database, SQLStatementCallback* callback, 52 SQLStatementErrorCallback* errorCallback) 53 : m_statementCallback(callback) 54 , m_statementErrorCallback(errorCallback) 55{ 56} 57 58SQLStatement::~SQLStatement() 59{ 60} 61 62void SQLStatement::trace(Visitor* visitor) 63{ 64 visitor->trace(m_backend); 65 visitor->trace(m_statementCallback); 66 visitor->trace(m_statementErrorCallback); 67} 68 69void SQLStatement::setBackend(SQLStatementBackend* backend) 70{ 71 m_backend = backend; 72} 73 74bool SQLStatement::hasCallback() 75{ 76 return m_statementCallback; 77} 78 79bool SQLStatement::hasErrorCallback() 80{ 81 return m_statementErrorCallback; 82} 83 84bool SQLStatement::performCallback(SQLTransaction* transaction) 85{ 86 ASSERT(transaction); 87 ASSERT(m_backend); 88 89 bool callbackError = false; 90 91 SQLStatementCallback* callback = m_statementCallback.release(); 92 SQLStatementErrorCallback* errorCallback = m_statementErrorCallback.release(); 93 SQLErrorData* error = m_backend->sqlError(); 94 95 // Call the appropriate statement callback and track if it resulted in an error, 96 // because then we need to jump to the transaction error callback. 97 if (error) { 98 if (errorCallback) { 99 RefPtrWillBeRawPtr<SQLError> sqlError = SQLError::create(*error); 100 callbackError = errorCallback->handleEvent(transaction, sqlError.get()); 101 } 102 } else if (callback) { 103 RefPtrWillBeRawPtr<SQLResultSet> resultSet = m_backend->sqlResultSet(); 104 callbackError = !callback->handleEvent(transaction, resultSet.get()); 105 } 106 107 return callbackError; 108} 109 110} // namespace blink 111