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
5  * reserved.
6  * Copyright (C) 2014 Samsung Electronics. All rights reserved.
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public License
19  * along with this library; see the file COPYING.LIB.  If not, write to
20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21  * Boston, MA 02110-1301, USA.
22  *
23  */
24 
25 #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_HTML_FORM_CONTROLS_COLLECTION_H_
26 #define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_HTML_FORM_CONTROLS_COLLECTION_H_
27 
28 #include "third_party/blink/renderer/core/html/forms/listed_element.h"
29 #include "third_party/blink/renderer/core/html/forms/radio_node_list.h"
30 #include "third_party/blink/renderer/core/html/html_collection.h"
31 #include "third_party/blink/renderer/core/html/html_element.h"
32 
33 namespace blink {
34 
35 class HTMLImageElement;
36 class RadioNodeListOrElement;
37 
38 // This class is just a big hack to find form elements even in malformed HTML
39 // elements.  The famous <table><tr><form><td> problem.
40 
41 class HTMLFormControlsCollection final : public HTMLCollection {
42   DEFINE_WRAPPERTYPEINFO();
43 
44  public:
45   explicit HTMLFormControlsCollection(ContainerNode&);
46   HTMLFormControlsCollection(ContainerNode&, CollectionType);
47 
48   ~HTMLFormControlsCollection() override;
49 
item(unsigned offset)50   HTMLElement* item(unsigned offset) const {
51     return To<HTMLElement>(HTMLCollection::item(offset));
52   }
53 
54   HTMLElement* namedItem(const AtomicString& name) const override;
55   void namedGetter(const AtomicString& name, RadioNodeListOrElement&);
56 
57   void Trace(Visitor*) override;
58 
59  private:
60   void UpdateIdNameCache() const override;
61   void SupportedPropertyNames(Vector<String>& names) override;
62 
63   const ListedElement::List& ListedElements() const;
64   const HeapVector<Member<HTMLImageElement>>& FormImageElements() const;
65   HTMLElement* VirtualItemAfter(Element*) const override;
66   void InvalidateCache(Document* old_document = nullptr) const override;
67 
68   mutable Member<HTMLElement> cached_element_;
69   mutable unsigned cached_element_offset_in_array_;
70 };
71 
72 }  // namespace blink
73 
74 #endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_HTML_FORM_CONTROLS_COLLECTION_H_
75