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 "platform/Logging.h"
32 #include "modules/webdatabase/sqlite/SQLiteDatabase.h"
33 #include "modules/webdatabase/sqlite/SQLiteStatement.h"
34 #include "modules/webdatabase/AbstractDatabaseServer.h"
35 #include "modules/webdatabase/AbstractSQLStatementBackend.h"
36 #include "modules/webdatabase/Database.h"
37 #include "modules/webdatabase/DatabaseManager.h"
38 #include "modules/webdatabase/SQLStatementCallback.h"
39 #include "modules/webdatabase/SQLStatementErrorCallback.h"
40 #include "modules/webdatabase/SQLTransaction.h"
41 #include "wtf/text/CString.h"
42
43 namespace WebCore {
44
create(Database * database,PassOwnPtr<SQLStatementCallback> callback,PassOwnPtr<SQLStatementErrorCallback> errorCallback)45 PassOwnPtrWillBeRawPtr<SQLStatement> SQLStatement::create(Database* database,
46 PassOwnPtr<SQLStatementCallback> callback, PassOwnPtr<SQLStatementErrorCallback> errorCallback)
47 {
48 return adoptPtrWillBeNoop(new SQLStatement(database, callback, errorCallback));
49 }
50
SQLStatement(Database * database,PassOwnPtr<SQLStatementCallback> callback,PassOwnPtr<SQLStatementErrorCallback> errorCallback)51 SQLStatement::SQLStatement(Database* database, PassOwnPtr<SQLStatementCallback> callback,
52 PassOwnPtr<SQLStatementErrorCallback> errorCallback)
53 : m_statementCallbackWrapper(callback, database->executionContext())
54 , m_statementErrorCallbackWrapper(errorCallback, database->executionContext())
55 {
56 }
57
trace(Visitor * visitor)58 void SQLStatement::trace(Visitor* visitor)
59 {
60 visitor->trace(m_backend);
61 visitor->trace(m_statementCallbackWrapper);
62 visitor->trace(m_statementErrorCallbackWrapper);
63 AbstractSQLStatement::trace(visitor);
64 }
65
setBackend(AbstractSQLStatementBackend * backend)66 void SQLStatement::setBackend(AbstractSQLStatementBackend* backend)
67 {
68 m_backend = backend;
69 }
70
hasCallback()71 bool SQLStatement::hasCallback()
72 {
73 return m_statementCallbackWrapper.hasCallback();
74 }
75
hasErrorCallback()76 bool SQLStatement::hasErrorCallback()
77 {
78 return m_statementErrorCallbackWrapper.hasCallback();
79 }
80
performCallback(SQLTransaction * transaction)81 bool SQLStatement::performCallback(SQLTransaction* transaction)
82 {
83 ASSERT(transaction);
84 ASSERT(m_backend);
85
86 bool callbackError = false;
87
88 OwnPtr<SQLStatementCallback> callback = m_statementCallbackWrapper.unwrap();
89 OwnPtr<SQLStatementErrorCallback> errorCallback = m_statementErrorCallbackWrapper.unwrap();
90 SQLErrorData* error = m_backend->sqlError();
91
92 // Call the appropriate statement callback and track if it resulted in an error,
93 // because then we need to jump to the transaction error callback.
94 if (error) {
95 if (errorCallback) {
96 RefPtrWillBeRawPtr<SQLError> sqlError = SQLError::create(*error);
97 callbackError = errorCallback->handleEvent(transaction, sqlError.get());
98 }
99 } else if (callback) {
100 RefPtrWillBeRawPtr<SQLResultSet> resultSet = m_backend->sqlResultSet();
101 callbackError = !callback->handleEvent(transaction, resultSet.get());
102 }
103
104 return callbackError;
105 }
106
107 } // namespace WebCore
108