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 "core/html/HTMLFormControlElement.h"
28
29namespace WebCore {
30
31class FormAssociatedElement;
32class HTMLCollection;
33
34class HTMLFieldSetElement FINAL : public HTMLFormControlElement {
35public:
36    static PassRefPtr<HTMLFieldSetElement> create(Document&, HTMLFormElement*);
37    HTMLLegendElement* legend() const;
38
39    PassRefPtr<HTMLCollection> elements();
40
41    const Vector<FormAssociatedElement*>& associatedElements() const;
42    unsigned length() const;
43
44protected:
45    virtual void disabledAttributeChanged() OVERRIDE;
46
47private:
48    HTMLFieldSetElement(Document&, HTMLFormElement*);
49
50    virtual bool isEnumeratable() const { return true; }
51    virtual bool supportsFocus() const;
52    virtual RenderObject* createRenderer(RenderStyle*);
53    virtual const AtomicString& formControlType() const;
54    virtual bool recalcWillValidate() const { return false; }
55    virtual void childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) OVERRIDE;
56    virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; }
57
58    static void invalidateDisabledStateUnder(Element&);
59    void refreshElementsIfNeeded() const;
60
61    mutable Vector<FormAssociatedElement*> m_associatedElements;
62    // When dom tree is modified, we have to refresh the m_associatedElements array.
63    mutable uint64_t m_documentVersion;
64};
65
66DEFINE_NODE_TYPE_CASTS(HTMLFieldSetElement, hasTagName(HTMLNames::fieldsetTag));
67
68} // namespace
69
70#endif
71