/*

 * Copyright (C) 2007 Alexey Proskuryakov (ap@nypop.com)

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. 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.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 "JSCustomXPathNSResolver.h"

#if ENABLE(XPATH)

#include "Document.h"

#include "ExceptionCode.h"

#include "Frame.h"

#include "JSDOMWindowCustom.h"

#include "ScriptController.h"

#include <runtime/JSLock.h>

namespace WebCore {

using namespace JSC;

PassRefPtr<JSCustomXPathNSResolver> JSCustomXPathNSResolver::create(JSC::ExecState* exec, JSC::JSValue value)

{

    if (value.isUndefinedOrNull())

        return 0;

    JSObject* resolverObject = value.getObject();

    if (!resolverObject) {

        setDOMException(exec, TYPE_MISMATCH_ERR);

        return 0;

    }

    return adoptRef(new JSCustomXPathNSResolver(resolverObject, asJSDOMWindow(exec->dynamicGlobalObject())));

}

JSCustomXPathNSResolver::JSCustomXPathNSResolver(JSObject* customResolver, JSDOMWindow* globalObject)

    : m_customResolver(customResolver)

    , m_globalObject(globalObject)

{

}

JSCustomXPathNSResolver::~JSCustomXPathNSResolver()

{

}

String JSCustomXPathNSResolver::lookupNamespaceURI(const String& prefix)

{

    ASSERT(m_customResolver);

    JSLock lock(SilenceAssertionsOnly);

    ExecState* exec = m_globalObject->globalExec();

    JSValue function = m_customResolver->get(exec, Identifier(exec, "lookupNamespaceURI"));

    CallData callData;

    CallType callType = getCallData(function, callData);

    if (callType == CallTypeNone) {

        callType = m_customResolver->getCallData(callData);

        if (callType == CallTypeNone) {

            // FIXME: Pass actual line number and source URL.

            m_globalObject->impl()->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, "XPathNSResolver does not have a lookupNamespaceURI method.", 0, String());

            return String();

        }

        function = m_customResolver;

    }

    RefPtr<JSCustomXPathNSResolver> selfProtector(this);

    MarkedArgumentBuffer args;

    args.append(jsString(exec, prefix));

    m_globalObject->globalData()->timeoutChecker.start();

    JSValue retval = JSC::call(exec, function, callType, callData, m_customResolver, args);

    m_globalObject->globalData()->timeoutChecker.stop();

    String result;

    if (exec->hadException())

        reportCurrentException(exec);

    else {

        if (!retval.isUndefinedOrNull())

            result = ustringToString(retval.toString(exec));

    }

    Document::updateStyleForAllDocuments();

    return result;

}

} // namespace WebCore

#endif // ENABLE(XPATH)