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 blink {
30
31class FormAssociatedElement;
32class HTMLCollection;
33class HTMLFormControlsCollection;
34
35class HTMLFieldSetElement FINAL : public HTMLFormControlElement {
36    DEFINE_WRAPPERTYPEINFO();
37public:
38    static PassRefPtrWillBeRawPtr<HTMLFieldSetElement> create(Document&, HTMLFormElement*);
39    virtual void trace(Visitor*) OVERRIDE;
40    HTMLLegendElement* legend() const;
41
42    PassRefPtrWillBeRawPtr<HTMLFormControlsCollection> elements();
43
44    const FormAssociatedElement::List& associatedElements() const;
45
46protected:
47    virtual void disabledAttributeChanged() OVERRIDE;
48
49private:
50    HTMLFieldSetElement(Document&, HTMLFormElement*);
51
52    virtual bool isEnumeratable() const OVERRIDE { return true; }
53    virtual bool supportsFocus() const OVERRIDE;
54    virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
55    virtual const AtomicString& formControlType() const OVERRIDE;
56    virtual bool recalcWillValidate() const OVERRIDE { return false; }
57    virtual void childrenChanged(const ChildrenChange&) OVERRIDE;
58    virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; }
59
60    static void invalidateDisabledStateUnder(Element&);
61    void refreshElementsIfNeeded() const;
62
63    mutable FormAssociatedElement::List m_associatedElements;
64    // When dom tree is modified, we have to refresh the m_associatedElements array.
65    mutable uint64_t m_documentVersion;
66};
67
68} // namespace blink
69
70#endif // HTMLFieldSetElement_h
71