1/*
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2007, 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 CSSValue_h
22#define CSSValue_h
23
24#include "KURLHash.h"
25#include <wtf/ListHashSet.h>
26#include <wtf/RefPtr.h>
27
28namespace WebCore {
29
30class CSSStyleSheet;
31
32typedef int ExceptionCode;
33
34class CSSValue : public RefCounted<CSSValue> {
35public:
36    // FIXME: Change name to Type.
37    enum UnitTypes {
38        CSS_INHERIT = 0,
39        CSS_PRIMITIVE_VALUE = 1,
40        CSS_VALUE_LIST = 2,
41        CSS_CUSTOM = 3,
42        CSS_INITIAL = 4
43    };
44
45    virtual ~CSSValue() { }
46
47    // FIXME: Change this to return UnitTypes.
48    virtual unsigned short cssValueType() const { return CSS_CUSTOM; }
49
50    virtual String cssText() const = 0;
51    void setCssText(const String&, ExceptionCode&) { } // FIXME: Not implemented.
52
53    virtual bool isBorderImageValue() const { return false; }
54    virtual bool isCursorImageValue() const { return false; }
55    virtual bool isFontFamilyValue() const { return false; }
56    virtual bool isFontValue() const { return false; }
57    virtual bool isImageGeneratorValue() const { return false; }
58    virtual bool isImageValue() const { return false; }
59    virtual bool isImplicitInitialValue() const { return false; }
60    virtual bool isPrimitiveValue() const { return false; }
61    virtual bool isReflectValue() const { return false; }
62    virtual bool isShadowValue() const { return false; }
63    virtual bool isTimingFunctionValue() const { return false; }
64    virtual bool isValueList() const { return false; }
65    virtual bool isWebKitCSSTransformValue() const { return false; }
66    virtual bool isCSSLineBoxContainValue() const { return false; }
67
68#if ENABLE(SVG)
69    virtual bool isSVGColor() const { return false; }
70    virtual bool isSVGPaint() const { return false; }
71#endif
72
73    virtual void addSubresourceStyleURLs(ListHashSet<KURL>&, const CSSStyleSheet*) { }
74};
75
76} // namespace WebCore
77
78#endif // CSSValue_h
79