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      1 /*
      2  * Copyright (c) 2009, Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #if ENABLE(DATABASE)
     34 
     35 #include "V8SQLStatementErrorCallback.h"
     36 
     37 #include "ScriptExecutionContext.h"
     38 #include "V8CustomVoidCallback.h"
     39 #include "V8Proxy.h"
     40 #include "V8SQLError.h"
     41 #include "V8SQLTransaction.h"
     42 #include <wtf/Assertions.h>
     43 
     44 namespace WebCore {
     45 
     46 bool V8SQLStatementErrorCallback::handleEvent(SQLTransaction* transaction, SQLError* error)
     47 {
     48     if (!canInvokeCallback())
     49         return true;
     50 
     51     v8::HandleScope handleScope;
     52 
     53     v8::Handle<v8::Context> v8Context = toV8Context(scriptExecutionContext(), m_worldContext);
     54     if (v8Context.IsEmpty())
     55         return true;
     56 
     57     v8::Context::Scope scope(v8Context);
     58 
     59     v8::Handle<v8::Value> transactionHandle = toV8(transaction);
     60     v8::Handle<v8::Value> errorHandle = toV8(error);
     61     if (transactionHandle.IsEmpty() || errorHandle.IsEmpty()) {
     62         CRASH();
     63         return true;
     64     }
     65 
     66     v8::Handle<v8::Value> argv[] = {
     67         transactionHandle,
     68         errorHandle
     69     };
     70 
     71     bool callbackReturnValue = false;
     72     // Step 6: If the error callback returns false, then move on to the next
     73     // statement, if any, or onto the next overall step otherwise. Otherwise,
     74     // the error callback did not return false, or there was no error callback.
     75     // Jump to the last step in the overall steps.
     76     return invokeCallback(m_callback, 2, argv, callbackReturnValue, scriptExecutionContext()) || callbackReturnValue;
     77 }
     78 
     79 } // namespace WebCore
     80 
     81 #endif
     82