/**

 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#include "config.h"

#if ENABLE(WML)

#include "WMLOnEventElement.h"

#include "Attribute.h"

#include "HTMLNames.h"

#include "WMLErrorHandling.h"

#include "WMLEventHandlingElement.h"

#include "WMLIntrinsicEventHandler.h"

#include "WMLNames.h"

#include "WMLVariables.h"

namespace WebCore {

using namespace WMLNames;

WMLOnEventElement::WMLOnEventElement(const QualifiedName& tagName, Document* doc)

    : WMLElement(tagName, doc)

    , m_type(WMLIntrinsicEventUnknown)

{

}

void WMLOnEventElement::parseMappedAttribute(Attribute* attr)

{

    if (attr->name() == HTMLNames::typeAttr) {

        String parsedValue = parseValueForbiddingVariableReferences(attr->value());

        if (parsedValue.isEmpty())

            return;

        if (parsedValue == onenterforwardAttr)

            m_type = WMLIntrinsicEventOnEnterForward;

        else if (parsedValue == onenterbackwardAttr)

            m_type = WMLIntrinsicEventOnEnterBackward;

        else if (parsedValue == ontimerAttr)

            m_type = WMLIntrinsicEventOnTimer;

        else if (parsedValue == onpickAttr)

            m_type = WMLIntrinsicEventOnPick;

    } else

        WMLElement::parseMappedAttribute(attr);

}

static inline WMLEventHandlingElement* eventHandlingParent(Node* parent)

{

    if (!parent || !parent->isWMLElement())

        return 0;

    return toWMLEventHandlingElement(static_cast<WMLElement*>(parent));

}

void WMLOnEventElement::registerTask(WMLTaskElement* task)

{

    if (m_type == WMLIntrinsicEventUnknown)

        return;

    // Register intrinsic event to the event handler of the owner of onevent element 

    WMLEventHandlingElement* eventHandlingElement = eventHandlingParent(parentNode());

    if (!eventHandlingElement)

        return;

    eventHandlingElement->createEventHandlerIfNeeded();

    RefPtr<WMLIntrinsicEvent> event = WMLIntrinsicEvent::createWithTask(task);

    if (!eventHandlingElement->eventHandler()->registerIntrinsicEvent(m_type, event))

        reportWMLError(document(), WMLErrorConflictingEventBinding);

}

void WMLOnEventElement::deregisterTask(WMLTaskElement*)

{

    WMLEventHandlingElement* eventHandlingElement = eventHandlingParent(parentNode());

    if (!eventHandlingElement)

        return;

    eventHandlingElement->eventHandler()->deregisterIntrinsicEvent(m_type);

}

}

#endif