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1 /*
2  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3  * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
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 SVGStyledElement_h
22 #define SVGStyledElement_h
23 
24 #if ENABLE(SVG)
25 #include "SVGAnimatedString.h"
26 #include "SVGLocatable.h"
27 #include "SVGStylable.h"
28 #include <wtf/HashSet.h>
29 
30 namespace WebCore {
31 
32 void mapAttributeToCSSProperty(HashMap<AtomicStringImpl*, int>* propertyNameToIdMap, const QualifiedName& attrName);
33 
34 class SVGStyledElement : public SVGElement,
35                          public SVGStylable {
36 public:
37     virtual ~SVGStyledElement();
38 
39     virtual String title() const;
40 
hasRelativeLengths()41     bool hasRelativeLengths() const { return !m_elementsWithRelativeLengths.isEmpty(); }
42 
supportsMarkers()43     virtual bool supportsMarkers() const { return false; }
44 
45     virtual PassRefPtr<CSSValue> getPresentationAttribute(const String& name);
46 
47     bool isKnownAttribute(const QualifiedName&);
48 
49     // Centralized place to force a manual style resolution. Hacky but needed for now.
50     PassRefPtr<RenderStyle> resolveStyle(RenderStyle* parentStyle);
51 
52     bool instanceUpdatesBlocked() const;
53     void setInstanceUpdatesBlocked(bool);
54 
55     AnimatedAttributeType animatedPropertyTypeForCSSProperty(const QualifiedName&);
56     static bool isAnimatableCSSProperty(const QualifiedName&);
57 
58     virtual AffineTransform localCoordinateSpaceTransform(SVGLocatable::CTMScope) const;
59 
style()60     virtual CSSStyleDeclaration* style() { return StyledElement::style(); }
61 
62 protected:
63     SVGStyledElement(const QualifiedName&, Document*);
64 
65     virtual bool rendererIsNeeded(RenderStyle*);
66 
67     virtual bool mapToEntry(const QualifiedName&, MappedAttributeEntry&) const;
68     virtual void parseMappedAttribute(Attribute*);
69     virtual void svgAttributeChanged(const QualifiedName&);
70     virtual void synchronizeProperty(const QualifiedName&);
71 
72     void fillPassedAttributeToPropertyTypeMap(AttributeToPropertyTypeMap&);
73 
74     virtual void attach();
75     virtual void insertedIntoDocument();
76     virtual void removedFromDocument();
77     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
78 
79     static int cssPropertyIdForSVGAttributeName(const QualifiedName&);
updateRelativeLengthsInformation()80     void updateRelativeLengthsInformation() { updateRelativeLengthsInformation(selfHasRelativeLengths(), this); }
81     void updateRelativeLengthsInformation(bool hasRelativeLengths, SVGStyledElement*);
82 
selfHasRelativeLengths()83     virtual bool selfHasRelativeLengths() const { return false; }
84 
85 private:
isStyled()86     virtual bool isStyled() const { return true; }
87 
88     HashSet<SVGStyledElement*> m_elementsWithRelativeLengths;
89 
90     // Animated property declarations
91     DECLARE_ANIMATED_STRING(ClassName, className)
92 };
93 
94 } // namespace WebCore
95 
96 #endif // ENABLE(SVG)
97 #endif // SVGStyledElement
98