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 CSSStyleDeclaration_h
22#define CSSStyleDeclaration_h
23
24#include "StyleBase.h"
25#include <wtf/Forward.h>
26
27namespace WebCore {
28
29class CSSMutableStyleDeclaration;
30class CSSProperty;
31class CSSRule;
32class CSSValue;
33
34typedef int ExceptionCode;
35
36class CSSStyleDeclaration : public StyleBase {
37public:
38    static bool isPropertyName(const String&);
39
40    CSSRule* parentRule() const;
41
42    virtual String cssText() const = 0;
43    virtual void setCssText(const String&, ExceptionCode&) = 0;
44
45    virtual unsigned length() const = 0;
46    bool isEmpty() const { return !length(); }
47    virtual String item(unsigned index) const = 0;
48
49    PassRefPtr<CSSValue> getPropertyCSSValue(const String& propertyName);
50    String getPropertyValue(const String& propertyName);
51    String getPropertyPriority(const String& propertyName);
52    String getPropertyShorthand(const String& propertyName);
53    bool isPropertyImplicit(const String& propertyName);
54
55    virtual PassRefPtr<CSSValue> getPropertyCSSValue(int propertyID) const = 0;
56    virtual String getPropertyValue(int propertyID) const = 0;
57    virtual bool getPropertyPriority(int propertyID) const = 0;
58    virtual int getPropertyShorthand(int propertyID) const = 0;
59    virtual bool isPropertyImplicit(int propertyID) const = 0;
60
61    void setProperty(const String& propertyName, const String& value, ExceptionCode&);
62    void setProperty(const String& propertyName, const String& value, const String& priority, ExceptionCode&);
63    String removeProperty(const String& propertyName, ExceptionCode&);
64    virtual void setProperty(int propertyId, const String& value, bool important, ExceptionCode&) = 0;
65    virtual String removeProperty(int propertyID, ExceptionCode&) = 0;
66
67    virtual PassRefPtr<CSSMutableStyleDeclaration> copy() const = 0;
68    virtual PassRefPtr<CSSMutableStyleDeclaration> makeMutable() = 0;
69
70    void diff(CSSMutableStyleDeclaration*) const;
71
72    PassRefPtr<CSSMutableStyleDeclaration> copyPropertiesInSet(const int* set, unsigned length) const;
73
74protected:
75    CSSStyleDeclaration(CSSRule* parentRule = 0);
76
77    virtual bool cssPropertyMatches(const CSSProperty*) const;
78
79};
80
81} // namespace WebCore
82
83#endif // CSSStyleDeclaration_h
84