1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * Copyright (C) 2010-2017 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23#pragma once
24
25#include "HTMLElement.h"
26
27namespace WebCore {
28
29class HTMLOListElement final : public HTMLElement {
30 WTF_MAKE_ISO_ALLOCATED(HTMLOListElement);
31public:
32 static Ref<HTMLOListElement> create(Document&);
33 static Ref<HTMLOListElement> create(const QualifiedName&, Document&);
34
35 int startForBindings() const { return m_start.valueOr(1); }
36 WEBCORE_EXPORT void setStartForBindings(int);
37
38 // FIXME: The reason start() does not trigger layout is because it is called
39 // from rendering code. This is unfortunately one of the few cases where the
40 // render tree is mutated during layout.
41
42 int start() const { return m_start ? m_start.value() : (m_isReversed ? itemCount() : 1); }
43 bool isReversed() const { return m_isReversed; }
44 void itemCountChanged() { m_itemCount = WTF::nullopt; }
45
46private:
47 HTMLOListElement(const QualifiedName&, Document&);
48
49 WEBCORE_EXPORT unsigned itemCount() const;
50
51 void parseAttribute(const QualifiedName&, const AtomicString&) final;
52 bool isPresentationAttribute(const QualifiedName&) const final;
53 void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStyleProperties&) final;
54
55 Optional<int> m_start;
56 mutable Optional<unsigned> m_itemCount;
57 bool m_isReversed { false };
58};
59
60} //namespace
61