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1 /*
2  * Copyright (C) 2007 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 
29 #include "config.h"
30 #include "JSCustomSQLStatementCallback.h"
31 #if ENABLE(DATABASE)
32 
33 #include "Frame.h"
34 #include "ScriptController.h"
35 #include "JSSQLResultSet.h"
36 #include "JSSQLTransaction.h"
37 #include <runtime/JSLock.h>
38 
39 namespace WebCore {
40 
41 using namespace JSC;
42 
JSCustomSQLStatementCallback(JSObject * callback,Frame * frame)43 JSCustomSQLStatementCallback::JSCustomSQLStatementCallback(JSObject* callback, Frame* frame)
44     : m_callback(callback)
45     , m_frame(frame)
46 {
47 }
48 
handleEvent(SQLTransaction * transaction,SQLResultSet * resultSet,bool & raisedException)49 void JSCustomSQLStatementCallback::handleEvent(SQLTransaction* transaction, SQLResultSet* resultSet, bool& raisedException)
50 {
51     ASSERT(m_callback);
52     ASSERT(m_frame);
53 
54     if (!m_frame->script()->isEnabled())
55         return;
56 
57     // FIXME: This is likely the wrong globalObject (for prototype chains at least)
58     JSGlobalObject* globalObject = m_frame->script()->globalObject();
59     ExecState* exec = globalObject->globalExec();
60 
61     JSC::JSLock lock(SilenceAssertionsOnly);
62 
63     JSValue function = m_callback->get(exec, Identifier(exec, "handleEvent"));
64     CallData callData;
65     CallType callType = function.getCallData(callData);
66     if (callType == CallTypeNone) {
67         callType = m_callback->getCallData(callData);
68         if (callType == CallTypeNone) {
69             // FIXME: Should an exception be thrown here?
70             return;
71         }
72         function = m_callback;
73     }
74 
75     RefPtr<JSCustomSQLStatementCallback> protect(this);
76 
77     MarkedArgumentBuffer args;
78     args.append(toJS(exec, deprecatedGlobalObjectForPrototype(exec), transaction));
79     args.append(toJS(exec, deprecatedGlobalObjectForPrototype(exec), resultSet));
80 
81     globalObject->globalData()->timeoutChecker.start();
82     call(exec, function, callType, callData, m_callback, args);
83     globalObject->globalData()->timeoutChecker.stop();
84 
85     if (exec->hadException()) {
86         reportCurrentException(exec);
87 
88         raisedException = true;
89     }
90 
91     Document::updateStyleForAllDocuments();
92 }
93 
94 }
95 
96 #endif // ENABLE(DATABASE)
97