htmlpreelement.cpp

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/**
 * This file is part of the DOM implementation for KDE.
 *
 * Copyright (C) 1999 Lars Knoll ([e-mail])
 *           (C) 1999 Antti Koivisto ([e-mail])
 * Copyright (C) 2003 Apple Computer, Inc.
 *
 * 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 "HTMLPreElement.h"

#include "CSSPropertyNames.h"
#include "CSSValueKeywords.h"
#include "HTMLNames.h"

namespace WebCore {

using namespace HTMLNames;

HTMLPreElement::HTMLPreElement(const QualifiedName& tagName, Document* doc)
    : HTMLElement(tagName, doc)
{
}

bool HTMLPreElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
{
    if (attrName == widthAttr || attrName == wrapAttr) {
        result = ePre;
        return false;
    }
    return HTMLElement::mapToEntry(attrName, result);
}

void HTMLPreElement::parseMappedAttribute(MappedAttribute *attr)
{
    if (attr->name() == widthAttr) {
        // FIXME: Implement this some day.  Width on a <pre> is the # of characters that
        // we should size the pre to.  We basically need to take the width of a space,
        // multiply by the value of the attribute and then set that as the width CSS
        // property.
    } else if (attr->name() == wrapAttr) {
        if (!attr->value().isNull())
            addCSSProperty(attr, CSSPropertyWhiteSpace, CSSValuePreWrap);
    } else
        return HTMLElement::parseMappedAttribute(attr);
}

int HTMLPreElement::width() const
{
    return getAttribute(widthAttr).toInt();
}

void HTMLPreElement::setWidth(int width)
{
    setAttribute(widthAttr, String::number(width));
}

bool HTMLPreElement::wrap() const
{
    return !getAttribute(wrapAttr).isNull();
}

void HTMLPreElement::setWrap(bool wrap)
{
    setAttribute(wrapAttr, wrap ? "" : 0);
}

}