1/*
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2008, 2012 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 "bindings/core/v8/ScriptWrappable.h"
25#include "core/CSSPropertyNames.h"
26#include "wtf/Forward.h"
27#include "wtf/Noncopyable.h"
28
29namespace blink {
30
31class CSSRule;
32class CSSStyleSheet;
33class CSSValue;
34class ExceptionState;
35class MutableStylePropertySet;
36
37class CSSStyleDeclaration : public NoBaseWillBeGarbageCollectedFinalized<CSSStyleDeclaration>, public ScriptWrappable {
38    DEFINE_WRAPPERTYPEINFO();
39    WTF_MAKE_NONCOPYABLE(CSSStyleDeclaration); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
40public:
41    virtual ~CSSStyleDeclaration() { }
42
43#if !ENABLE(OILPAN)
44    virtual void ref() = 0;
45    virtual void deref() = 0;
46#endif
47
48    virtual CSSRule* parentRule() const = 0;
49    virtual String cssText() const = 0;
50    virtual void setCSSText(const String&, ExceptionState&) = 0;
51    virtual unsigned length() const = 0;
52    virtual String item(unsigned index) const = 0;
53    virtual PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValue(const String& propertyName) = 0;
54    virtual String getPropertyValue(const String& propertyName) = 0;
55    virtual String getPropertyPriority(const String& propertyName) = 0;
56    virtual String getPropertyShorthand(const String& propertyName) = 0;
57    virtual bool isPropertyImplicit(const String& propertyName) = 0;
58    virtual void setProperty(const String& propertyName, const String& value, const String& priority, ExceptionState&) = 0;
59    virtual String removeProperty(const String& propertyName, ExceptionState&) = 0;
60
61    // CSSPropertyID versions of the CSSOM functions to support bindings and editing.
62    // Use the non-virtual methods in the concrete subclasses when possible.
63    // The CSSValue returned by this function should not be exposed to the web as it may be used by multiple documents at the same time.
64    virtual PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValueInternal(CSSPropertyID) = 0;
65    virtual String getPropertyValueInternal(CSSPropertyID) = 0;
66    virtual void setPropertyInternal(CSSPropertyID, const String& value, bool important, ExceptionState&) = 0;
67
68    virtual PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyProperties() const = 0;
69
70    virtual bool cssPropertyMatches(CSSPropertyID, const CSSValue*) const = 0;
71    virtual CSSStyleSheet* parentStyleSheet() const { return 0; }
72
73    virtual void trace(Visitor*) { }
74
75protected:
76    CSSStyleDeclaration() { }
77};
78
79} // namespace blink
80
81#endif // CSSStyleDeclaration_h
82