1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 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 "CachedHTMLCollection.h"
26#include "HTMLFormElement.h"
27#include "RadioNodeList.h"
28
29namespace WebCore {
30
31class FormAssociatedElement;
32class HTMLImageElement;
33
34// This class is just a big hack to find form elements even in malformed HTML elements.
35// The famous <table><tr><form><td> problem.
36
37class HTMLFormControlsCollection final : public CachedHTMLCollection<HTMLFormControlsCollection, CollectionTypeTraits<FormControls>::traversalType> {
38 WTF_MAKE_ISO_ALLOCATED(HTMLFormControlsCollection);
39public:
40 static Ref<HTMLFormControlsCollection> create(ContainerNode&, CollectionType);
41 virtual ~HTMLFormControlsCollection();
42
43 HTMLElement* item(unsigned offset) const override;
44 Optional<Variant<RefPtr<RadioNodeList>, RefPtr<Element>>> namedItemOrItems(const String&) const;
45
46 HTMLFormElement& ownerNode() const;
47
48 // For CachedHTMLCollection.
49 HTMLElement* customElementAfter(Element*) const;
50
51private:
52 explicit HTMLFormControlsCollection(ContainerNode&);
53
54 void invalidateCacheForDocument(Document&) override;
55 void updateNamedElementCache() const override;
56
57 const Vector<FormAssociatedElement*>& unsafeFormControlElements() const;
58 Vector<Ref<FormAssociatedElement>> copyFormControlElementsVector() const;
59
60 mutable Element* m_cachedElement;
61 mutable unsigned m_cachedElementOffsetInArray;
62};
63
64inline HTMLElement* HTMLFormControlsCollection::item(unsigned offset) const
65{
66 return downcast<HTMLElement>(CachedHTMLCollection<HTMLFormControlsCollection, CollectionTypeTraits<FormControls>::traversalType>::item(offset));
67}
68
69} // namespace WebCore
70
71SPECIALIZE_TYPE_TRAITS_HTMLCOLLECTION(HTMLFormControlsCollection, FormControls)
72