/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#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)
