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 | |
31 | namespace WebCore { |
32 | |
33 | class Node; |
34 | |
35 | class NodeList : public ScriptWrappable, public RefCounted<NodeList> { |
36 | WTF_MAKE_ISO_ALLOCATED_EXPORT(NodeList, WEBCORE_EXPORT); |
37 | public: |
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 | |