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1 /*
2  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
3  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org>
4  * Copyright (C) 2014 Google, Inc.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public License
17  * along with this library; see the file COPYING.LIB.  If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  */
21 
22 #ifndef SVGSVGElement_h
23 #define SVGSVGElement_h
24 
25 #include "core/svg/SVGAnimatedBoolean.h"
26 #include "core/svg/SVGAnimatedLength.h"
27 #include "core/svg/SVGFitToViewBox.h"
28 #include "core/svg/SVGGraphicsElement.h"
29 #include "core/svg/SVGLengthTearOff.h"
30 #include "core/svg/SVGPointTearOff.h"
31 #include "core/svg/SVGZoomAndPan.h"
32 
33 namespace blink {
34 
35 class SVGMatrixTearOff;
36 class SVGAngleTearOff;
37 class SVGNumberTearOff;
38 class SVGTransformTearOff;
39 class SVGViewSpec;
40 class SVGViewElement;
41 class SMILTimeContainer;
42 
43 class SVGSVGElement FINAL : public SVGGraphicsElement,
44                             public SVGFitToViewBox,
45                             public SVGZoomAndPan {
46     DEFINE_WRAPPERTYPEINFO();
47 public:
48     DECLARE_NODE_FACTORY(SVGSVGElement);
49 
50 #if !ENABLE(OILPAN)
51     using SVGGraphicsElement::ref;
52     using SVGGraphicsElement::deref;
53 #endif
54 
55     // 'SVGSVGElement' functions
56     PassRefPtr<SVGRectTearOff> viewport() const;
57 
58     float pixelUnitToMillimeterX() const;
59     float pixelUnitToMillimeterY() const;
60     float screenPixelToMillimeterX() const;
61     float screenPixelToMillimeterY() const;
62 
useCurrentView()63     bool useCurrentView() const { return m_useCurrentView; }
64     SVGViewSpec* currentView();
65 
66     Length intrinsicWidth() const;
67     Length intrinsicHeight() const;
68     FloatSize currentViewportSize() const;
69     FloatRect currentViewBoxRect() const;
70 
71     float currentScale() const;
72     void setCurrentScale(float scale);
73 
currentTranslate()74     FloatPoint currentTranslate() { return m_translation->value(); }
75     void setCurrentTranslate(const FloatPoint&);
76     PassRefPtr<SVGPointTearOff> currentTranslateFromJavascript();
77 
timeContainer()78     SMILTimeContainer* timeContainer() const { return m_timeContainer.get(); }
79 
80     void pauseAnimations();
81     void unpauseAnimations();
82     bool animationsPaused() const;
83 
84     float getCurrentTime() const;
85     void setCurrentTime(float seconds);
86 
87     // Stubs for the deprecated 'redraw' interface.
suspendRedraw(unsigned)88     unsigned suspendRedraw(unsigned) { return 1; }
unsuspendRedraw(unsigned)89     void unsuspendRedraw(unsigned) { }
unsuspendRedrawAll()90     void unsuspendRedrawAll() { }
forceRedraw()91     void forceRedraw() { }
92 
93     PassRefPtrWillBeRawPtr<StaticNodeList> getIntersectionList(PassRefPtr<SVGRectTearOff>, SVGElement* referenceElement) const;
94     PassRefPtrWillBeRawPtr<StaticNodeList> getEnclosureList(PassRefPtr<SVGRectTearOff>, SVGElement* referenceElement) const;
95     bool checkIntersection(SVGElement*, PassRefPtr<SVGRectTearOff>) const;
96     bool checkEnclosure(SVGElement*, PassRefPtr<SVGRectTearOff>) const;
97     void deselectAll();
98 
99     static PassRefPtr<SVGNumberTearOff> createSVGNumber();
100     static PassRefPtr<SVGLengthTearOff> createSVGLength();
101     static PassRefPtr<SVGAngleTearOff> createSVGAngle();
102     static PassRefPtr<SVGPointTearOff> createSVGPoint();
103     static PassRefPtr<SVGMatrixTearOff> createSVGMatrix();
104     static PassRefPtr<SVGRectTearOff> createSVGRect();
105     static PassRefPtr<SVGTransformTearOff> createSVGTransform();
106     static PassRefPtr<SVGTransformTearOff> createSVGTransformFromMatrix(PassRefPtr<SVGMatrixTearOff>);
107 
108     AffineTransform viewBoxToViewTransform(float viewWidth, float viewHeight) const;
109 
110     void setupInitialView(const String& fragmentIdentifier, Element* anchorNode);
111 
112     bool hasIntrinsicWidth() const;
113     bool hasIntrinsicHeight() const;
114 
x()115     SVGAnimatedLength* x() const { return m_x.get(); }
y()116     SVGAnimatedLength* y() const { return m_y.get(); }
width()117     SVGAnimatedLength* width() const { return m_width.get(); }
height()118     SVGAnimatedLength* height() const { return m_height.get(); }
119 
120     virtual void trace(Visitor*) OVERRIDE;
121 
122 private:
123     explicit SVGSVGElement(Document&);
124     virtual ~SVGSVGElement();
125 
126     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
127     virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE;
128     virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE;
129 
130     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE;
131     virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
132 
133     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
134     virtual void removedFrom(ContainerNode*) OVERRIDE;
135 
136     virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
137 
138     virtual bool selfHasRelativeLengths() const OVERRIDE;
139 
140     void inheritViewAttributes(SVGViewElement*);
141 
142     void updateCurrentTranslate();
143 
144     virtual void finishParsingChildren() OVERRIDE;
145 
146     enum CheckIntersectionOrEnclosure {
147         CheckIntersection,
148         CheckEnclosure
149     };
150 
151     bool checkIntersectionOrEnclosure(const SVGElement&, const FloatRect&, CheckIntersectionOrEnclosure) const;
152     PassRefPtrWillBeRawPtr<StaticNodeList> collectIntersectionOrEnclosureList(const FloatRect&, SVGElement*, CheckIntersectionOrEnclosure) const;
153 
154     RefPtr<SVGAnimatedLength> m_x;
155     RefPtr<SVGAnimatedLength> m_y;
156     RefPtr<SVGAnimatedLength> m_width;
157     RefPtr<SVGAnimatedLength> m_height;
158 
159     virtual AffineTransform localCoordinateSpaceTransform(SVGElement::CTMScope) const OVERRIDE;
160 
161     bool m_useCurrentView;
162     RefPtrWillBeMember<SMILTimeContainer> m_timeContainer;
163     RefPtr<SVGPoint> m_translation;
164     RefPtrWillBeMember<SVGViewSpec> m_viewSpec;
165 
166     friend class SVGCurrentTranslateTearOff;
167 };
168 
169 } // namespace blink
170 
171 #endif // SVGSVGElement_h
172