Windows-4.7.4/src/3rdparty/webkit/WebCore/bindings/js/JSDatabaseCallback.cpp

/*
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#include "config.h"
#include "JSDatabaseCallback.h"

#if ENABLE(DATABASE)

#include "Frame.h"
#include "JSDatabase.h"
#include "ScriptController.h"
#include "ScriptExecutionContext.h"
#include <runtime/JSLock.h>
#include <wtf/MainThread.h>

namespace WebCore {

using namespace JSC;

JSDatabaseCallback::JSDatabaseCallback(JSObject* callback, JSDOMGlobalObject* globalObject)
    : m_data(new JSCallbackData(callback, globalObject))
    , m_isolatedWorld(DOMWrapperWorld::create(globalObject->globalData(), true))
{
}

JSDatabaseCallback::~JSDatabaseCallback()
{
    callOnMainThread(JSCallbackData::deleteData, m_data);
#ifndef NDEBUG
    m_data = 0;
#endif
}

void JSDatabaseCallback::handleEvent(ScriptExecutionContext* context, Database* database)
{
    ASSERT(m_data);
    ASSERT(context);

    RefPtr<JSDatabaseCallback> protect(this);

    JSC::JSLock lock(SilenceAssertionsOnly);

    JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(context, m_isolatedWorld.get());
    if (!globalObject)
        return;

    ExecState* exec = globalObject->globalExec();
    MarkedArgumentBuffer args;
    args.append(toJS(exec, database));

    bool ignored;
    m_data->invokeCallback(args, &ignored);
}

}

#endif // ENABLE(DATABASE)