third_party/WebKit/Source/core/svg/SVGSVGElement.h

   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 #include "platform/heap/Handle.h"
  33
  34 namespace blink {
  35
  36 class SVGMatrixTearOff;
  37 class SVGAngleTearOff;
  38 class SVGNumberTearOff;
  39 class SVGTransformTearOff;
  40 class SVGViewSpec;
  41 class SVGViewElement;
  42 class SMILTimeContainer;
  43
  44 class SVGSVGElement final : public SVGGraphicsElement,
  45                             public SVGFitToViewBox,
  46                             public SVGZoomAndPan {
  47     DEFINE_WRAPPERTYPEINFO();
  48     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SVGSVGElement);
  49 public:
  50     DECLARE_NODE_FACTORY(SVGSVGElement);
  51
  52 #if !ENABLE(OILPAN)
  53     using SVGGraphicsElement::ref;
  54     using SVGGraphicsElement::deref;
  55 #endif
  56
  57     // 'SVGSVGElement' functions
  58     PassRefPtrWillBeRawPtr<SVGRectTearOff> viewport() const;
  59
  60     float pixelUnitToMillimeterX() const;
  61     float pixelUnitToMillimeterY() const;
  62     float screenPixelToMillimeterX() const;
  63     float screenPixelToMillimeterY() const;
  64
  65     bool useCurrentView() const { return m_useCurrentView; }
  66     SVGViewSpec* currentView();
  67
  68     Length intrinsicWidth() const;
  69     Length intrinsicHeight() const;
  70     FloatSize currentViewportSize() const;
  71     FloatRect currentViewBoxRect() const;
  72
  73     float currentScale() const;
  74     void setCurrentScale(float scale);
  75
  76     FloatPoint currentTranslate() { return m_translation->value(); }
  77     void setCurrentTranslate(const FloatPoint&);
  78     PassRefPtrWillBeRawPtr<SVGPointTearOff> currentTranslateFromJavascript();
  79
  80     SMILTimeContainer* timeContainer() const { return m_timeContainer.get(); }
  81
  82     void pauseAnimations();
  83     void unpauseAnimations();
  84     bool animationsPaused() const;
  85
  86     float getCurrentTime() const;
  87     void setCurrentTime(float seconds);
  88
  89     // Stubs for the deprecated 'redraw' interface.
  90     unsigned suspendRedraw(unsigned) { return 1; }
  91     void unsuspendRedraw(unsigned) { }
  92     void unsuspendRedrawAll() { }
  93     void forceRedraw() { }
  94
  95     PassRefPtrWillBeRawPtr<StaticNodeList> getIntersectionList(PassRefPtrWillBeRawPtr<SVGRectTearOff>, SVGElement* referenceElement) const;
  96     PassRefPtrWillBeRawPtr<StaticNodeList> getEnclosureList(PassRefPtrWillBeRawPtr<SVGRectTearOff>, SVGElement* referenceElement) const;
  97     bool checkIntersection(SVGElement*, PassRefPtrWillBeRawPtr<SVGRectTearOff>) const;
  98     bool checkEnclosure(SVGElement*, PassRefPtrWillBeRawPtr<SVGRectTearOff>) const;
  99     void deselectAll();
 100
 101     static PassRefPtrWillBeRawPtr<SVGNumberTearOff> createSVGNumber();
 102     static PassRefPtrWillBeRawPtr<SVGLengthTearOff> createSVGLength();
 103     static PassRefPtrWillBeRawPtr<SVGAngleTearOff> createSVGAngle();
 104     static PassRefPtrWillBeRawPtr<SVGPointTearOff> createSVGPoint();
 105     static PassRefPtrWillBeRawPtr<SVGMatrixTearOff> createSVGMatrix();
 106     static PassRefPtrWillBeRawPtr<SVGRectTearOff> createSVGRect();
 107     static PassRefPtrWillBeRawPtr<SVGTransformTearOff> createSVGTransform();
 108     static PassRefPtrWillBeRawPtr<SVGTransformTearOff> createSVGTransformFromMatrix(PassRefPtrWillBeRawPtr<SVGMatrixTearOff>);
 109
 110     AffineTransform viewBoxToViewTransform(float viewWidth, float viewHeight) const;
 111
 112     void setupInitialView(const String& fragmentIdentifier, Element* anchorNode);
 113     bool zoomAndPanEnabled() const;
 114
 115     bool hasIntrinsicWidth() const;
 116     bool hasIntrinsicHeight() const;
 117
 118     SVGAnimatedLength* x() const { return m_x.get(); }
 119     SVGAnimatedLength* y() const { return m_y.get(); }
 120     SVGAnimatedLength* width() const { return m_width.get(); }
 121     SVGAnimatedLength* height() const { return m_height.get(); }
 122
 123     DECLARE_VIRTUAL_TRACE();
 124
 125 private:
 126     explicit SVGSVGElement(Document&);
 127     ~SVGSVGElement() override;
 128
 129     void parseAttribute(const QualifiedName&, const AtomicString&) override;
 130     bool isPresentationAttribute(const QualifiedName&) const override;
 131     bool isPresentationAttributeWithSVGDOM(const QualifiedName&) const override;
 132     void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) override;
 133
 134     bool layoutObjectIsNeeded(const ComputedStyle&) override;
 135     LayoutObject* createLayoutObject(const ComputedStyle&) override;
 136
 137     InsertionNotificationRequest insertedInto(ContainerNode*) override;
 138     void removedFrom(ContainerNode*) override;
 139
 140     void svgAttributeChanged(const QualifiedName&) override;
 141
 142     bool selfHasRelativeLengths() const override;
 143
 144     void inheritViewAttributes(SVGViewElement*);
 145
 146     void updateCurrentTranslate();
 147
 148     void finishParsingChildren() override;
 149
 150     enum CheckIntersectionOrEnclosure {
 151         CheckIntersection,
 152         CheckEnclosure
 153     };
 154
 155     bool checkIntersectionOrEnclosure(const SVGElement&, const FloatRect&, CheckIntersectionOrEnclosure) const;
 156     PassRefPtrWillBeRawPtr<StaticNodeList> collectIntersectionOrEnclosureList(const FloatRect&, SVGElement*, CheckIntersectionOrEnclosure) const;
 157
 158     RefPtrWillBeMember<SVGAnimatedLength> m_x;
 159     RefPtrWillBeMember<SVGAnimatedLength> m_y;
 160     RefPtrWillBeMember<SVGAnimatedLength> m_width;
 161     RefPtrWillBeMember<SVGAnimatedLength> m_height;
 162
 163     AffineTransform localCoordinateSpaceTransform(SVGElement::CTMScope) const override;
 164
 165     bool m_useCurrentView;
 166     RefPtrWillBeMember<SMILTimeContainer> m_timeContainer;
 167     RefPtrWillBeMember<SVGPoint> m_translation;
 168     RefPtrWillBeMember<SVGViewSpec> m_viewSpec;
 169
 170     friend class SVGCurrentTranslateTearOff;
 171 };
 172
 173 } // namespace blink
 174
 175 #endif // SVGSVGElement_h