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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 "JSCustomVoidCallback.h"
     31 
     32 #include "Frame.h"
     33 #include "JSCallbackData.h"
     34 #include "JSDOMWindowCustom.h"
     35 #include "ScriptController.h"
     36 #include <runtime/JSLock.h>
     37 #include <wtf/MainThread.h>
     38 
     39 namespace WebCore {
     40 
     41 using namespace JSC;
     42 
     43 JSCustomVoidCallback::JSCustomVoidCallback(JSObject* callback, JSDOMGlobalObject* globalObject)
     44     : m_data(new JSCallbackData(callback, globalObject))
     45 {
     46 }
     47 
     48 JSCustomVoidCallback::~JSCustomVoidCallback()
     49 {
     50     callOnMainThread(JSCallbackData::deleteData, m_data);
     51 #ifndef NDEBUG
     52     m_data = 0;
     53 #endif
     54 }
     55 
     56 void JSCustomVoidCallback::handleEvent()
     57 {
     58     ASSERT(m_data);
     59 
     60     RefPtr<JSCustomVoidCallback> protect(this);
     61 
     62     JSC::JSLock lock(SilenceAssertionsOnly);
     63     MarkedArgumentBuffer args;
     64     m_data->invokeCallback(args);
     65 }
     66 
     67 } // namespace WebCore
     68