/*

 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

 *

 * 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(PROGRESS_TAG)

#include "HTMLProgressElement.h"

#include "Attribute.h"

#include "EventNames.h"

#include "ExceptionCode.h"

#include "FormDataList.h"

#include "HTMLFormElement.h"

#include "HTMLNames.h"

#include "LegacyHTMLTreeBuilder.h"

#include "RenderProgress.h"

#include <wtf/StdLibExtras.h>

namespace WebCore {

using namespace HTMLNames;

HTMLProgressElement::HTMLProgressElement(const QualifiedName& tagName, Document* document, HTMLFormElement* form)

    : HTMLFormControlElement(tagName, document, form)

{

    ASSERT(hasTagName(progressTag));

}

PassRefPtr<HTMLProgressElement> HTMLProgressElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form)

{

    return adoptRef(new HTMLProgressElement(tagName, document, form));

}

RenderObject* HTMLProgressElement::createRenderer(RenderArena* arena, RenderStyle*)

{

    return new (arena) RenderProgress(this);

}

const AtomicString& HTMLProgressElement::formControlType() const

{

    DEFINE_STATIC_LOCAL(const AtomicString, progress, ("progress"));

    return progress;

}

void HTMLProgressElement::parseMappedAttribute(Attribute* attribute)

{

    if (attribute->name() == valueAttr) {

        if (renderer())

            renderer()->updateFromElement();

    } else if (attribute->name() == maxAttr) {

        if (renderer())

            renderer()->updateFromElement();

    } else

        HTMLFormControlElement::parseMappedAttribute(attribute);

}

double HTMLProgressElement::value() const

{

    const AtomicString& valueString = getAttribute(valueAttr);

    double value;

    bool ok = parseToDoubleForNumberType(valueString, &value);

    if (!ok || value < 0)

        return valueString.isNull() ? 1 : 0;

    return (value > max()) ? max() : value;

}

void HTMLProgressElement::setValue(double value, ExceptionCode& ec)

{

    if (!isfinite(value)) {

        ec = NOT_SUPPORTED_ERR;

        return;

    }

    setAttribute(valueAttr, String::number(value >= 0 ? value : 0));

}

double HTMLProgressElement::max() const

{

    double max;

    bool ok = parseToDoubleForNumberType(getAttribute(maxAttr), &max);

    if (!ok || max <= 0)

        return 1;

    return max;

}

void HTMLProgressElement::setMax(double max, ExceptionCode& ec)

{

    if (!isfinite(max)) {

        ec = NOT_SUPPORTED_ERR;

        return;

    }

    setAttribute(maxAttr, String::number(max > 0 ? max : 1));

}

double HTMLProgressElement::position() const

{

    if (!hasAttribute(valueAttr))

        return -1;

    return value() / max();

}

} // namespace

#endif