third_party/WebKit/Source/core/html/HTMLOListElement.cpp

/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
 * Copyright (C) 2010 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 "core/html/HTMLOListElement.h"

#include "core/CSSPropertyNames.h"
#include "core/CSSValueKeywords.h"
#include "core/HTMLNames.h"
#include "core/html/parser/HTMLParserIdioms.h"
#include "core/layout/LayoutListItem.h"

namespace blink {

using namespace HTMLNames;

inline HTMLOListElement::HTMLOListElement(Document& document)
    : HTMLElement(olTag, document),
      m_start(0xBADBEEF),
      m_itemCount(0),
      m_hasExplicitStart(false),
      m_isReversed(false),
      m_shouldRecalculateItemCount(false) {}

DEFINE_NODE_FACTORY(HTMLOListElement)

bool HTMLOListElement::isPresentationAttribute(
    const QualifiedName& name) const {
  if (name == typeAttr)
    return true;
  return HTMLElement::isPresentationAttribute(name);
}

void HTMLOListElement::collectStyleForPresentationAttribute(
    const QualifiedName& name,
    const AtomicString& value,
    MutableStylePropertySet* style) {
  if (name == typeAttr) {
    if (value == "a")
      addPropertyToPresentationAttributeStyle(style, CSSPropertyListStyleType,
                                              CSSValueLowerAlpha);
    else if (value == "A")
      addPropertyToPresentationAttributeStyle(style, CSSPropertyListStyleType,
                                              CSSValueUpperAlpha);
    else if (value == "i")
      addPropertyToPresentationAttributeStyle(style, CSSPropertyListStyleType,
                                              CSSValueLowerRoman);
    else if (value == "I")
      addPropertyToPresentationAttributeStyle(style, CSSPropertyListStyleType,
                                              CSSValueUpperRoman);
    else if (value == "1")
      addPropertyToPresentationAttributeStyle(style, CSSPropertyListStyleType,
                                              CSSValueDecimal);
  } else {
    HTMLElement::collectStyleForPresentationAttribute(name, value, style);
  }
}

void HTMLOListElement::parseAttribute(const QualifiedName& name,
                                      const AtomicString& oldValue,
                                      const AtomicString& value) {
  if (name == startAttr) {
    int oldStart = start();
    int parsedStart = 0;
    bool canParse = parseHTMLInteger(value, parsedStart);
    m_hasExplicitStart = canParse;
    m_start = canParse ? parsedStart : 0xBADBEEF;
    if (oldStart == start())
      return;
    updateItemValues();
  } else if (name == reversedAttr) {
    bool reversed = !value.isNull();
    if (reversed == m_isReversed)
      return;
    m_isReversed = reversed;
    updateItemValues();
  } else {
    HTMLElement::parseAttribute(name, oldValue, value);
  }
}

void HTMLOListElement::setStart(int start) {
  setIntegralAttribute(startAttr, start);
}

void HTMLOListElement::updateItemValues() {
  if (!layoutObject())
    return;
  updateDistribution();
  LayoutListItem::updateItemValuesForOrderedList(this);
}

void HTMLOListElement::recalculateItemCount() {
  m_itemCount = LayoutListItem::itemCountForOrderedList(this);
  m_shouldRecalculateItemCount = false;
}

}  // namespace blink