/*

 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

 *           (C) 1999 Antti Koivisto (koivisto@kde.org)

 *           (C) 2001 Peter Kelly (pmk@post.com)

 *           (C) 2001 Dirk Mueller (mueller@kde.org)

 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.

 *

 * 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 "NamedMappedAttrMap.h"

#include "Document.h"

#include "Element.h"

namespace WebCore {

NamedMappedAttrMap::NamedMappedAttrMap(Element *e)

    : NamedAttrMap(e)

    , m_mappedAttributeCount(0)

{

}

void NamedMappedAttrMap::clearAttributes()

{

    m_classList.clear();

    m_mappedAttributeCount = 0;

    NamedAttrMap::clearAttributes();

}

bool NamedMappedAttrMap::isMappedAttributeMap() const

{

    return true;

}

int NamedMappedAttrMap::declCount() const

{

    int result = 0;

    for (unsigned i = 0; i < length(); i++) {

        MappedAttribute* attr = attributeItem(i);

        if (attr->decl())

            result++;

    }

    return result;

}

bool NamedMappedAttrMap::mapsEquivalent(const NamedMappedAttrMap* otherMap) const

{

    // The # of decls must match.

    if (declCount() != otherMap->declCount())

        return false;

    // The values for each decl must match.

    for (unsigned i = 0; i < length(); i++) {

        MappedAttribute* attr = attributeItem(i);

        if (attr->decl()) {

            Attribute* otherAttr = otherMap->getAttributeItem(attr->name());

            if (!otherAttr || (attr->value() != otherAttr->value()))

                return false;

        }

    }

    return true;

}

inline static bool isClassWhitespace(UChar c)

{

    return c == ' ' || c == '\r' || c == '\n' || c == '\t';

}

void NamedMappedAttrMap::parseClassAttribute(const String& classStr)

{

    m_classList.clear();

    if (!element->hasClass())

        return;

    String classAttr = element->document()->inCompatMode() ? 

        (classStr.impl()->isLower() ? classStr : String(classStr.impl()->lower())) :

        classStr;

    AtomicStringList* curr = 0;

    const UChar* str = classAttr.characters();

    int length = classAttr.length();

    int sPos = 0;

    while (true) {

        while (sPos < length && isClassWhitespace(str[sPos]))

            ++sPos;

        if (sPos >= length)

            break;

        int ePos = sPos + 1;

        while (ePos < length && !isClassWhitespace(str[ePos]))

            ++ePos;

        if (curr) {

            curr->setNext(new AtomicStringList(AtomicString(str + sPos, ePos - sPos)));

            curr = curr->next();

        } else {

            if (sPos == 0 && ePos == length) {

                m_classList.setString(AtomicString(classAttr));

                break;

            }

            m_classList.setString(AtomicString(str + sPos, ePos - sPos));

            curr = &m_classList;

        }

        sPos = ePos + 1;

    }

}

}