1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
4 *           (C) 2000 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB.  If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 *
22 */
23
24#ifndef HTMLFieldSetElement_h
25#define HTMLFieldSetElement_h
26
27#include "HTMLFormControlElement.h"
28#include <wtf/OwnPtr.h>
29
30namespace WebCore {
31
32class FormAssociatedElement;
33class HTMLCollection;
34
35class HTMLFieldSetElement FINAL : public HTMLFormControlElement {
36public:
37    static PassRefPtr<HTMLFieldSetElement> create(const QualifiedName&, Document*, HTMLFormElement*);
38    HTMLLegendElement* legend() const;
39
40    PassRefPtr<HTMLCollection> elements();
41
42    const Vector<FormAssociatedElement*>& associatedElements() const;
43    unsigned length() const;
44
45protected:
46    virtual void disabledAttributeChanged() OVERRIDE;
47
48private:
49    HTMLFieldSetElement(const QualifiedName&, Document*, HTMLFormElement*);
50
51    virtual bool isEnumeratable() const { return true; }
52    virtual bool supportsFocus() const OVERRIDE;
53    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
54    virtual const AtomicString& formControlType() const;
55    virtual bool recalcWillValidate() const { return false; }
56    virtual void childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) OVERRIDE;
57    virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; }
58
59    static void invalidateDisabledStateUnder(Element*);
60    void refreshElementsIfNeeded() const;
61
62    mutable Vector<FormAssociatedElement*> m_associatedElements;
63    // When dom tree is modified, we have to refresh the m_associatedElements array.
64    mutable uint64_t m_documentVersion;
65};
66
67} // namespace
68
69#endif
70