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