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, 2006, 2007 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#pragma once
25
26#include "ScriptWrappable.h"
27#include <wtf/Forward.h>
28#include <wtf/IsoMalloc.h>
29#include <wtf/RefCounted.h>
30
31namespace WebCore {
32
33class Node;
34
35class NodeList : public ScriptWrappable, public RefCounted<NodeList> {
36 WTF_MAKE_ISO_ALLOCATED_EXPORT(NodeList, WEBCORE_EXPORT);
37public:
38 virtual ~NodeList() = default;
39
40 // DOM methods & attributes for NodeList
41 virtual unsigned length() const = 0;
42 virtual Node* item(unsigned index) const = 0;
43
44 class Iterator {
45 public:
46 explicit Iterator(NodeList& list) : m_list(list) { }
47 Node* next() { return m_list->item(m_index++); }
48
49 private:
50 size_t m_index { 0 };
51 Ref<NodeList> m_list;
52 };
53 Iterator createIterator() { return Iterator(*this); }
54
55 // Other methods (not part of DOM)
56 virtual bool isLiveNodeList() const { return false; }
57 virtual bool isChildNodeList() const { return false; }
58 virtual bool isEmptyNodeList() const { return false; }
59 virtual size_t memoryCost() const { return 0; }
60};
61
62} // namespace WebCore
63