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

   1 /*
   2  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3  * Copyright (C) 2004, 2005, 2006, 2007 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 SVGGraphicsElement_h
  23 #define SVGGraphicsElement_h
  24
  25 #include "core/CoreExport.h"
  26 #include "core/svg/SVGAnimatedTransformList.h"
  27 #include "core/svg/SVGElement.h"
  28 #include "core/svg/SVGRectTearOff.h"
  29 #include "core/svg/SVGTests.h"
  30 #include "platform/heap/Handle.h"
  31
  32 namespace blink {
  33
  34 class AffineTransform;
  35 class Path;
  36 class SVGMatrixTearOff;
  37
  38 class CORE_EXPORT SVGGraphicsElement : public SVGElement, public SVGTests {
  39     DEFINE_WRAPPERTYPEINFO();
  40     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SVGGraphicsElement);
  41 public:
  42     ~SVGGraphicsElement() override;
  43
  44     enum StyleUpdateStrategy { AllowStyleUpdate, DisallowStyleUpdate };
  45
  46     AffineTransform getCTM(StyleUpdateStrategy = AllowStyleUpdate);
  47     AffineTransform getScreenCTM(StyleUpdateStrategy = AllowStyleUpdate);
  48     PassRefPtrWillBeRawPtr<SVGMatrixTearOff> getCTMFromJavascript();
  49     PassRefPtrWillBeRawPtr<SVGMatrixTearOff> getScreenCTMFromJavascript();
  50
  51     PassRefPtrWillBeRawPtr<SVGMatrixTearOff> getTransformToElement(SVGElement*, ExceptionState&);
  52
  53     SVGElement* nearestViewportElement() const;
  54     SVGElement* farthestViewportElement() const;
  55
  56     AffineTransform localCoordinateSpaceTransform(SVGElement::CTMScope) const override { return calculateAnimatedLocalTransform(); }
  57     bool hasAnimatedLocalTransform() const;
  58     AffineTransform calculateAnimatedLocalTransform() const;
  59     AffineTransform* animateMotionTransform() override;
  60
  61     virtual FloatRect getBBox();
  62     PassRefPtrWillBeRawPtr<SVGRectTearOff> getBBoxFromJavascript();
  63
  64     bool isValid() const final { return SVGTests::isValid(document()); }
  65
  66     SVGAnimatedTransformList* transform() { return m_transform.get(); }
  67     const SVGAnimatedTransformList* transform() const { return m_transform.get(); }
  68
  69     AffineTransform computeCTM(SVGElement::CTMScope mode, SVGGraphicsElement::StyleUpdateStrategy,
  70         const SVGGraphicsElement* ancestor = 0) const;
  71
  72     DECLARE_VIRTUAL_TRACE();
  73
  74 protected:
  75     SVGGraphicsElement(const QualifiedName&, Document&, ConstructionType = CreateSVGElement);
  76
  77     bool supportsFocus() const override { return Element::supportsFocus() || hasFocusEventListeners(); }
  78
  79     void svgAttributeChanged(const QualifiedName&) override;
  80
  81     RefPtrWillBeMember<SVGAnimatedTransformList> m_transform;
  82
  83 private:
  84     bool isSVGGraphicsElement() const final { return true; }
  85 };
  86
  87 inline bool isSVGGraphicsElement(const SVGElement& element)
  88 {
  89     return element.isSVGGraphicsElement();
  90 }
  91
  92 DEFINE_SVGELEMENT_TYPE_CASTS_WITH_FUNCTION(SVGGraphicsElement);
  93
  94 } // namespace blink
  95
  96 #endif // SVGGraphicsElement_h