1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SVGUseElement_h
#define SVGUseElement_h
#if ENABLE(SVG)
#include "CachedSVGDocument.h"
#include "SVGAnimatedBoolean.h"
#include "SVGAnimatedLength.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGLangSpace.h"
#include "SVGStyledTransformableElement.h"
#include "SVGTests.h"
#include "SVGURIReference.h"
namespace WebCore {
class CachedSVGDocument;
class SVGElementInstance;
class SVGUseElement : public SVGStyledTransformableElement,
public SVGTests,
public SVGLangSpace,
public SVGExternalResourcesRequired,
public SVGURIReference,
public CachedSVGDocumentClient {
public:
static PassRefPtr<SVGUseElement> create(const QualifiedName&, Document*, bool wasInsertedByParser);
virtual ~SVGUseElement();
SVGElementInstance* instanceRoot();
SVGElementInstance* animatedInstanceRoot() const;
SVGElementInstance* instanceForShadowTreeElement(Node*) const;
void invalidateShadowTree();
RenderObject* rendererClipChild() const;
private:
SVGUseElement(const QualifiedName&, Document*, bool wasInsertedByParser);
virtual bool isValid() const { return SVGTests::isValid(); }
virtual bool supportsFocus() const { return true; }
virtual InsertionNotificationRequest insertedInto(Node*) OVERRIDE;
virtual void removedFrom(Node*) OVERRIDE;
virtual void buildPendingResource();
bool isSupportedAttribute(const QualifiedName&);
virtual void parseAttribute(Attribute*) OVERRIDE;
virtual void svgAttributeChanged(const QualifiedName&);
virtual bool willRecalcStyle(StyleChange);
virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
virtual void toClipPath(Path&);
void clearResourceReferences();
void buildShadowAndInstanceTree(SVGElement* target);
void detachInstance();
virtual bool haveLoadedRequiredResources() { return SVGExternalResourcesRequired::haveLoadedRequiredResources(); }
virtual void finishParsingChildren();
virtual bool selfHasRelativeLengths() const;
// Instance tree handling
void buildInstanceTree(SVGElement* target, SVGElementInstance* targetInstance, bool& foundCycle);
bool hasCycleUseReferencing(SVGUseElement*, SVGElementInstance* targetInstance, SVGElement*& newTarget);
// Shadow tree handling
void buildShadowTree(SVGElement* target, SVGElementInstance* targetInstance);
void expandUseElementsInShadowTree(Node* element);
void expandSymbolElementsInShadowTree(Node* element);
// "Tree connector"
void associateInstancesWithShadowTreeElements(Node* target, SVGElementInstance* targetInstance);
SVGElementInstance* instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const;
void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
void transferEventListenersToShadowTree(SVGElementInstance* target);
BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGUseElement)
DECLARE_ANIMATED_LENGTH(X, x)
DECLARE_ANIMATED_LENGTH(Y, y)
DECLARE_ANIMATED_LENGTH(Width, width)
DECLARE_ANIMATED_LENGTH(Height, height)
DECLARE_ANIMATED_STRING(Href, href)
DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
END_DECLARE_ANIMATED_PROPERTIES
bool cachedDocumentIsStillLoading();
Document* externalDocument() const;
bool instanceTreeIsLoading(SVGElementInstance*);
virtual void notifyFinished(CachedResource*);
Document* referencedDocument() const;
// SVGTests
virtual void synchronizeRequiredFeatures() { SVGTests::synchronizeRequiredFeatures(this); }
virtual void synchronizeRequiredExtensions() { SVGTests::synchronizeRequiredExtensions(this); }
virtual void synchronizeSystemLanguage() { SVGTests::synchronizeSystemLanguage(this); }
// SVGExternalResourcesRequired
virtual void setHaveFiredLoadEvent(bool haveFiredLoadEvent) { m_haveFiredLoadEvent = haveFiredLoadEvent; }
virtual bool isParserInserted() const { return m_wasInsertedByParser; }
virtual bool haveFiredLoadEvent() const { return m_haveFiredLoadEvent; }
bool m_wasInsertedByParser;
bool m_haveFiredLoadEvent;
bool m_needsShadowTreeRecreation;
RefPtr<SVGElementInstance> m_targetElementInstance;
CachedResourceHandle<CachedSVGDocument> m_cachedDocument;
};
}
#endif
#endif
|
