1/*
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2008 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#ifndef CSSInitialValue_h
22#define CSSInitialValue_h
23
24#include "core/css/CSSValue.h"
25#include "wtf/PassRefPtr.h"
26
27namespace blink {
28
29class CSSInitialValue : public CSSValue {
30public:
31    static PassRefPtrWillBeRawPtr<CSSInitialValue> createExplicit()
32    {
33        return adoptRefWillBeNoop(new CSSInitialValue(/* implicit */ false));
34    }
35    static PassRefPtrWillBeRawPtr<CSSInitialValue> createImplicit()
36    {
37        return adoptRefWillBeNoop(new CSSInitialValue(/* implicit */ true));
38    }
39
40    String customCSSText() const;
41
42    bool isImplicit() const { return m_isImplicit; }
43
44    bool equals(const CSSInitialValue&) const { return true; }
45
46    void traceAfterDispatch(Visitor* visitor) { CSSValue::traceAfterDispatch(visitor); }
47
48private:
49    explicit CSSInitialValue(bool implicit)
50        : CSSValue(InitialClass)
51        , m_isImplicit(implicit)
52    {
53    }
54
55    bool m_isImplicit;
56};
57
58DEFINE_CSS_VALUE_TYPE_CASTS(CSSInitialValue, isInitialValue());
59
60} // namespace blink
61
62#endif // CSSInitialValue_h
63