1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22#ifndef PseudoStyleRequest_h
23#define PseudoStyleRequest_h
24
25#include "core/rendering/style/RenderStyleConstants.h"
26#include "platform/scroll/ScrollTypes.h"
27
28namespace WebCore {
29
30class RenderScrollbar;
31class RenderStyle;
32
33class PseudoStyleRequest {
34public:
35    PseudoStyleRequest(PseudoId pseudoId, RenderScrollbar* scrollbar = 0, ScrollbarPart scrollbarPart = NoPart)
36        : pseudoId(pseudoId)
37        , scrollbarPart(scrollbarPart)
38        , scrollbar(scrollbar)
39    {
40    }
41
42    // The spec disallows inheritance for ::backdrop.
43    bool allowsInheritance(const RenderStyle* parentStyle) const
44    {
45        return parentStyle && pseudoId != BACKDROP;
46    }
47
48    PseudoId pseudoId;
49    ScrollbarPart scrollbarPart;
50    RenderScrollbar* scrollbar;
51};
52
53} // namespace WebCore
54
55#endif // PseudoStyleRequest_h
56