/**

 * Copyright (C) 2008 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 "WMLTaskElement.h"

#include "WMLAnchorElement.h"

#include "WMLDoElement.h"

#include "WMLNames.h"

#include "WMLOnEventElement.h"

#include "WMLPageState.h"

#include "WMLSetvarElement.h"

namespace WebCore {

using namespace WMLNames;

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

    : WMLElement(tagName, doc)

{

}

WMLTaskElement::~WMLTaskElement()

{

}

void WMLTaskElement::insertedIntoDocument()

{

    WMLElement::insertedIntoDocument();

    Node* parent = parentNode();

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

        return;

    if (parent->hasTagName(anchorTag))

        static_cast<WMLAnchorElement*>(parent)->registerTask(this);

    else if (parent->hasTagName(doTag))

        static_cast<WMLDoElement*>(parent)->registerTask(this);

    else if (parent->hasTagName(oneventTag))

        static_cast<WMLOnEventElement*>(parent)->registerTask(this);

}

void WMLTaskElement::removedFromDocument()

{

    Node* parent = parentNode();

    if (parent && parent->isWMLElement()) {

        if (parent->hasTagName(anchorTag))

            static_cast<WMLAnchorElement*>(parent)->deregisterTask(this);

        else if (parent->hasTagName(doTag))

            static_cast<WMLDoElement*>(parent)->deregisterTask(this);

        else if (parent->hasTagName(oneventTag))

            static_cast<WMLOnEventElement*>(parent)->deregisterTask(this);

    }

    WMLElement::removedFromDocument();

}

void WMLTaskElement::registerVariableSetter(WMLSetvarElement* element)

{

    ASSERT(m_variableSetterElements.find(element) == WTF::notFound);

    m_variableSetterElements.append(element);

}

void WMLTaskElement::deregisterVariableSetter(WMLSetvarElement* element)

{

    size_t position = m_variableSetterElements.find(element);

    ASSERT(position != WTF::notFound);

    m_variableSetterElements.remove(position);

}

void WMLTaskElement::storeVariableState(WMLPageState* pageState)

{

    if (!pageState || m_variableSetterElements.isEmpty())

        return;

    WMLVariableMap variables;

    Vector<WMLSetvarElement*>::iterator it = m_variableSetterElements.begin();

    Vector<WMLSetvarElement*>::iterator end = m_variableSetterElements.end();

    for (; it != end; ++it) {

        WMLSetvarElement* setterElement = (*it);

        String name = setterElement->name();

        if (name.isEmpty())

            continue;

        String value = setterElement->value();

        variables.set(name, value);

        // The next setvar element may depend on this variable value. It's safe to store the current

        // name value pair in the page state, as the whole page state is replaced soon by this new map

        pageState->storeVariable(name, value);

    }

    pageState->storeVariables(variables);

}

}

#endif