WebCore/CSSComputedStyleDeclaration.h

   1 /*
   2  * Copyright (C) 2004 Zack Rusin <zack@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 Lesser 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  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301  USA
  19  */
  20
  21 #ifndef CSSComputedStyleDeclaration_h
  22 #define CSSComputedStyleDeclaration_h
  23
  24 #include "CSSStyleDeclaration.h"
  25 #include "Node.h"
  26
  27 namespace WebCore {
  28
  29 class CSSMutableStyleDeclaration;
  30
  31 enum EUpdateLayout { DoNotUpdateLayout = false, UpdateLayout = true };
  32
  33 class CSSComputedStyleDeclaration : public CSSStyleDeclaration {
  34 public:
  35     friend PassRefPtr<CSSComputedStyleDeclaration> computedStyle(PassRefPtr<Node>);
  36     virtual ~CSSComputedStyleDeclaration();
  37
  38     virtual String cssText() const;
  39
  40     virtual unsigned length() const;
  41     virtual String item(unsigned index) const;
  42
  43     virtual PassRefPtr<CSSValue> getPropertyCSSValue(int propertyID) const;
  44     virtual String getPropertyValue(int propertyID) const;
  45     virtual bool getPropertyPriority(int propertyID) const;
  46     virtual int getPropertyShorthand(int /*propertyID*/) const { return -1; }
  47     virtual bool isPropertyImplicit(int /*propertyID*/) const { return false; }
  48
  49     virtual PassRefPtr<CSSMutableStyleDeclaration> copy() const;
  50     virtual PassRefPtr<CSSMutableStyleDeclaration> makeMutable();
  51
  52     PassRefPtr<CSSValue> getPropertyCSSValue(int propertyID, EUpdateLayout) const;
  53 #if ENABLE(SVG)
  54     PassRefPtr<CSSValue> getSVGPropertyCSSValue(int propertyID, EUpdateLayout) const;
  55 #endif
  56
  57     PassRefPtr<CSSMutableStyleDeclaration> copyInheritableProperties() const;
  58
  59     static void removeComputedInheritablePropertiesFrom(CSSMutableStyleDeclaration*);
  60
  61 private:
  62     CSSComputedStyleDeclaration(PassRefPtr<Node>);
  63
  64     virtual void setCssText(const String&, ExceptionCode&);
  65
  66     virtual String removeProperty(int propertyID, ExceptionCode&);
  67     virtual void setProperty(int propertyId, const String& value, bool important, ExceptionCode&);
  68
  69     RefPtr<Node> m_node;
  70 };
  71
  72 inline PassRefPtr<CSSComputedStyleDeclaration> computedStyle(PassRefPtr<Node> node)
  73 {
  74     return adoptRef(new CSSComputedStyleDeclaration(node));
  75 }
  76
  77 } // namespace WebCore
  78
  79 #endif // CSSComputedStyleDeclaration_h