1 /*

     2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

     3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)

     4  *           (C) 2001 Peter Kelly (pmk@post.com)

     5  *           (C) 2001 Dirk Mueller (mueller@kde.org)

     6  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.

     7  *

     8  * This library is free software; you can redistribute it and/or

     9  * modify it under the terms of the GNU Library General Public

    10  * License as published by the Free Software Foundation; either

    11  * version 2 of the License, or (at your option) any later version.

    12  *

    13  * This library is distributed in the hope that it will be useful,

    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    16  * Library General Public License for more details.

    17  *

    18  * You should have received a copy of the GNU Library General Public License

    19  * along with this library; see the file COPYING.LIB.  If not, write to

    20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    21  * Boston, MA 02110-1301, USA.

    22  *

    23  */

    24 

    25 #ifndef StyledElement_h

    26 #define StyledElement_h

    27 

    28 #include "CSSMutableStyleDeclaration.h"

    29 #include "Element.h"

    30 #include "MappedAttributeEntry.h"

    31 

    32 namespace WebCore {

    33 

    34 class Attribute;

    35 class CSSMappedAttributeDeclaration;

    36 

    37 class StyledElement : public Element {

    38 public:

    39     virtual ~StyledElement();

    40 

    41     bool hasMappedAttributes() const { return attributeMap() && attributeMap()->hasMappedAttributes(); }

    42     bool isMappedAttribute(const QualifiedName& name) const { MappedAttributeEntry res = eNone; mapToEntry(name, res); return res != eNone; }

    43 

    44     void addCSSLength(Attribute*, int id, const String& value);

    45     void addCSSProperty(Attribute*, int id, const String& value);

    46     void addCSSProperty(Attribute*, int id, int value);

    47     void addCSSImageProperty(Attribute*, int propertyID, const String& url);

    48     void addCSSColor(Attribute*, int id, const String& color);

    49 

    50     static CSSMappedAttributeDeclaration* getMappedAttributeDecl(MappedAttributeEntry, const QualifiedName& name, const AtomicString& value);

    51     static void setMappedAttributeDecl(MappedAttributeEntry, const QualifiedName& name, const AtomicString& value, CSSMappedAttributeDeclaration*);

    52     static void removeMappedAttributeDecl(MappedAttributeEntry, const QualifiedName& name, const AtomicString& value);

    53 

    54     static CSSMappedAttributeDeclaration* getMappedAttributeDecl(MappedAttributeEntry, Attribute*);

    55     static void setMappedAttributeDecl(MappedAttributeEntry, Attribute*, CSSMappedAttributeDeclaration*);

    56 

    57     CSSMutableStyleDeclaration* inlineStyleDecl() const { return m_inlineStyleDecl.get(); }

    58     virtual bool canHaveAdditionalAttributeStyleDecls() const { return false; }

    59     virtual void additionalAttributeStyleDecls(Vector<CSSMutableStyleDeclaration*>&) { }

    60     CSSMutableStyleDeclaration* getInlineStyleDecl();

    61     CSSStyleDeclaration* style();

    62     void invalidateStyleAttribute();

    63 

    64     const SpaceSplitString& classNames() const;

    65 

    66     virtual bool mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const;

    67 

    68     virtual PassRefPtr<Attribute> createAttribute(const QualifiedName&, const AtomicString& value);

    69 

    70 protected:

    71     StyledElement(const QualifiedName& name, Document* document, ConstructionType type)

    72         : Element(name, document, type)

    73     {

    74     }

    75 

    76     virtual void attributeChanged(Attribute*, bool preserveDecls = false);

    77     virtual void parseMappedAttribute(Attribute*);

    78     virtual void copyNonAttributeProperties(const Element*);

    79 

    80     virtual void addSubresourceAttributeURLs(ListHashSet<KURL>&) const;

    81 

    82     // classAttributeChanged() exists to share code between

    83     // parseMappedAttribute (called via setAttribute()) and

    84     // svgAttributeChanged (called when element.className.baseValue is set)

    85     void classAttributeChanged(const AtomicString& newClassString);

    86     

    87     virtual void didMoveToNewOwnerDocument();

    88 

    89 private:

    90     void createMappedDecl(Attribute*);

    91 

    92     void createInlineStyleDecl();

    93     void destroyInlineStyleDecl();

    94     virtual void updateStyleAttribute() const;

    95 

    96     RefPtr<CSSMutableStyleDeclaration> m_inlineStyleDecl;

    97 };

    98 

    99 inline const SpaceSplitString& StyledElement::classNames() const

   100 {

   101     ASSERT(hasClass());

   102     ASSERT(attributeMap());

   103     return attributeMap()->classNames();

   104 }

   105 

   106 inline void StyledElement::invalidateStyleAttribute()

   107 {

   108     clearIsStyleAttributeValid();

   109 }

   110 

   111 } //namespace

   112 

   113 #endif