1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
4 *           (C) 2001 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
6 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
7 * Copyright (C) 2014 Samsung Electronics. All rights reserved.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * Library General Public License for more details.
18 *
19 * You should have received a copy of the GNU Library General Public License
20 * along with this library; see the file COPYING.LIB.  If not, write to
21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
23 */
24
25#ifndef HTMLTagCollection_h
26#define HTMLTagCollection_h
27
28#include "core/dom/Element.h"
29#include "core/dom/TagCollection.h"
30
31namespace blink {
32
33// Collection that limits to a particular tag and whose rootNode is in an HTMLDocument.
34class HTMLTagCollection FINAL : public TagCollection {
35public:
36    static PassRefPtrWillBeRawPtr<HTMLTagCollection> create(ContainerNode& rootNode, CollectionType type, const AtomicString& localName)
37    {
38        ASSERT_UNUSED(type, type == HTMLTagCollectionType);
39        return adoptRefWillBeNoop(new HTMLTagCollection(rootNode, localName));
40    }
41
42    bool elementMatches(const Element&) const;
43
44private:
45    HTMLTagCollection(ContainerNode& rootNode, const AtomicString& localName);
46
47    AtomicString m_loweredLocalName;
48};
49
50DEFINE_TYPE_CASTS(HTMLTagCollection, LiveNodeListBase, collection, collection->type() == HTMLTagCollectionType, collection.type() == HTMLTagCollectionType);
51
52inline bool HTMLTagCollection::elementMatches(const Element& testElement) const
53{
54    // Implements http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#concept-getelementsbytagname
55    if (m_localName != starAtom) {
56        const AtomicString& localName = testElement.isHTMLElement() ? m_loweredLocalName : m_localName;
57        if (localName != testElement.localName())
58            return false;
59    }
60    ASSERT(m_namespaceURI == starAtom);
61    return true;
62}
63
64} // namespace blink
65
66#endif // HTMLTagCollection_h
67