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 

    27 namespace WebCore {

    28 

    29 class CSSMutableStyleDeclaration;

    30 class CSSProperty;

    31 class CSSRule;

    32 class CSSValue;

    33 

    34 typedef int ExceptionCode;

    35 

    36 class CSSStyleDeclaration : public StyleBase {

    37 public:

    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     unsigned length() const { return virtualLength(); }

    46     virtual unsigned virtualLength() const = 0;

    47     bool isEmpty() const { return !length(); }

    48     virtual String item(unsigned index) const = 0;

    49 

    50     PassRefPtr<CSSValue> getPropertyCSSValue(const String& propertyName);

    51     String getPropertyValue(const String& propertyName);

    52     String getPropertyPriority(const String& propertyName);

    53     String getPropertyShorthand(const String& propertyName);

    54     bool isPropertyImplicit(const String& propertyName);

    55     

    56     virtual PassRefPtr<CSSValue> getPropertyCSSValue(int propertyID) const = 0;

    57     virtual String getPropertyValue(int propertyID) const = 0;

    58     virtual bool getPropertyPriority(int propertyID) const = 0;

    59     virtual int getPropertyShorthand(int propertyID) const = 0;

    60     virtual bool isPropertyImplicit(int propertyID) const = 0;

    61 

    62     void setProperty(const String& propertyName, const String& value, ExceptionCode&);

    63     void setProperty(const String& propertyName, const String& value, const String& priority, ExceptionCode&);

    64     String removeProperty(const String& propertyName, ExceptionCode&);

    65     virtual void setProperty(int propertyId, const String& value, bool important, ExceptionCode&) = 0;

    66     virtual String removeProperty(int propertyID, ExceptionCode&) = 0;

    67 

    68     virtual PassRefPtr<CSSMutableStyleDeclaration> copy() const = 0;

    69     virtual PassRefPtr<CSSMutableStyleDeclaration> makeMutable() = 0;

    70  

    71     void diff(CSSMutableStyleDeclaration*) const;

    72 

    73     PassRefPtr<CSSMutableStyleDeclaration> copyPropertiesInSet(const int* set, unsigned length) const;

    74 

    75 protected:

    76     CSSStyleDeclaration(CSSRule* parentRule = 0);

    77 

    78     virtual bool cssPropertyMatches(const CSSProperty*) const;

    79 

    80 };

    81 

    82 } // namespace WebCore

    83 

    84 #endif // CSSStyleDeclaration_h