1/*
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
4 * Copyright (C) 2002, 2006, 2007 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB.  If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#ifndef CSSRule_h
23#define CSSRule_h
24
25#include "CSSStyleSheet.h"
26#include "KURLHash.h"
27#include <wtf/ListHashSet.h>
28
29namespace WebCore {
30
31typedef int ExceptionCode;
32
33class CSSRule : public StyleBase {
34public:
35    // FIXME: Change name to Type.
36    enum CSSRuleType {
37        UNKNOWN_RULE,
38        STYLE_RULE,
39        CHARSET_RULE,
40        IMPORT_RULE,
41        MEDIA_RULE,
42        FONT_FACE_RULE,
43        PAGE_RULE,
44        VARIABLES_RULE,
45        WEBKIT_KEYFRAMES_RULE,
46        WEBKIT_KEYFRAME_RULE
47    };
48
49    // FIXME: Change to return CSSRuleType.
50    virtual unsigned short type() const = 0;
51
52    CSSStyleSheet* parentStyleSheet() const;
53    CSSRule* parentRule() const;
54
55    virtual String cssText() const = 0;
56    void setCssText(const String&, ExceptionCode&);
57
58    virtual void addSubresourceStyleURLs(ListHashSet<KURL>&) { }
59
60protected:
61    CSSRule(CSSStyleSheet* parent)
62        : StyleBase(parent)
63    {
64    }
65
66private:
67    virtual bool isRule() { return true; }
68};
69
70} // namespace WebCore
71
72#endif // CSSRule_h
73