1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
4 * Copyright (C) 2001 Peter Kelly (pmk@post.com)
5 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
6 * Copyright (C) 2004, 2008, 2009 Apple Inc. 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 NodeFilterCondition_h
26#define NodeFilterCondition_h
27
28#include "ScriptState.h"
29#include <wtf/RefCounted.h>
30
31namespace JSC {
32
33class SlotVisitor;
34
35}
36
37namespace WebCore {
38
39    class Node;
40
41    class NodeFilterCondition : public RefCounted<NodeFilterCondition> {
42    public:
43        virtual ~NodeFilterCondition() { }
44        virtual short acceptNode(JSC::ExecState*, Node*) const = 0;
45        virtual void visitAggregate(JSC::SlotVisitor&) { }
46    };
47
48} // namespace WebCore
49
50#endif // NodeFilterCondition_h
51