HTMLFieldSetElement.cpp   [plain text]

/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
 *           (C) 2001 Dirk Mueller (mueller@kde.org)
 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
 *           (C) 2006 Alexey Proskuryakov (ap@nypop.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"
#include "HTMLFieldSetElement.h"
#include "HTMLLegendElement.h"

#include "HTMLNames.h"
#include "RenderFieldset.h"
#include <wtf/StdLibExtras.h>

namespace WebCore {

using namespace HTMLNames;

inline HTMLFieldSetElement::HTMLFieldSetElement(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
    : HTMLFormControlElement(tagName, document, form)
{
    ASSERT(hasTagName(fieldsetTag));
}

PassRefPtr<HTMLFieldSetElement> HTMLFieldSetElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
{
    return adoptRef(new HTMLFieldSetElement(tagName, document, form));
}

void HTMLFieldSetElement::disabledAttributeChanged()
{
    // This element must be updated before the style of nodes in its subtree gets recalculated.
    HTMLFormControlElement::disabledAttributeChanged();

    for (Node* currentNode = this; currentNode; currentNode = currentNode->traverseNextNode(this)) {
        if (currentNode && currentNode->isElementNode() && toElement(currentNode)->isFormControlElement())
            static_cast<HTMLFormControlElement*>(currentNode)->setNeedsStyleRecalc();
    }
}

bool HTMLFieldSetElement::supportsFocus() const
{
    return HTMLElement::supportsFocus();
}

const AtomicString& HTMLFieldSetElement::formControlType() const
{
    DEFINE_STATIC_LOCAL(const AtomicString, fieldset, ("fieldset"));
    return fieldset;
}

RenderObject* HTMLFieldSetElement::createRenderer(RenderArena* arena, RenderStyle*)
{
    return new (arena) RenderFieldset(this);
}

HTMLLegendElement* HTMLFieldSetElement::legend() const
{
    for (Element* node = firstElementChild(); node; node = node->nextElementSibling()) {
        if (node->hasTagName(legendTag))
            return static_cast<HTMLLegendElement*>(node);
    }
    return 0;
}

} // namespace