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/*
* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
* Copyright (C) 2009 Google, Inc. All rights reserved.
* Copyright (C) 2009 Apple Inc. All rights reserved.
*
* 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 RenderSVGRoot_h
#define RenderSVGRoot_h
#include "FloatRect.h"
#include "RenderReplaced.h"
#include "SVGRenderSupport.h"
namespace WebCore {
class AffineTransform;
class RenderSVGResourceContainer;
class SVGSVGElement;
class RenderSVGRoot final : public RenderReplaced {
public:
RenderSVGRoot(SVGSVGElement&, PassRef<RenderStyle>);
virtual ~RenderSVGRoot();
SVGSVGElement& svgSVGElement() const;
bool isEmbeddedThroughSVGImage() const;
bool isEmbeddedThroughFrameContainingSVGDocument() const;
virtual void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio) const override;
bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; }
virtual void setNeedsBoundariesUpdate() override { m_needsBoundariesOrTransformUpdate = true; }
virtual bool needsBoundariesUpdate() override { return m_needsBoundariesOrTransformUpdate; }
virtual void setNeedsTransformUpdate() override { m_needsBoundariesOrTransformUpdate = true; }
IntSize containerSize() const { return m_containerSize; }
void setContainerSize(const IntSize& containerSize) { m_containerSize = containerSize; }
virtual bool hasRelativeDimensions() const override;
// localToBorderBoxTransform maps local SVG viewport coordinates to local CSS box coordinates.
const AffineTransform& localToBorderBoxTransform() const { return m_localToBorderBoxTransform; }
// The flag is cleared at the beginning of each layout() pass. Elements then call this
// method during layout when they are invalidated by a filter.
static void addResourceForClientInvalidation(RenderSVGResourceContainer*);
bool hasSVGShadow() const { return m_hasSVGShadow; }
void setHasSVGShadow(bool hasShadow) { m_hasSVGShadow = hasShadow; }
private:
void element() const = delete;
virtual bool isSVGRoot() const override { return true; }
virtual const char* renderName() const override { return "RenderSVGRoot"; }
virtual LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred = ComputeActual) const override;
virtual LayoutUnit computeReplacedLogicalHeight() const override;
virtual void layout() override;
virtual void paintReplaced(PaintInfo&, const LayoutPoint&) override;
virtual void willBeDestroyed() override;
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0) override;
virtual RenderObject* removeChild(RenderObject&) override;
virtual const AffineTransform& localToParentTransform() const override;
bool fillContains(const FloatPoint&) const;
bool strokeContains(const FloatPoint&) const;
virtual FloatRect objectBoundingBox() const override { return m_objectBoundingBox; }
virtual FloatRect strokeBoundingBox() const override { return m_strokeBoundingBox; }
virtual FloatRect repaintRectInLocalCoordinates() const override { return m_repaintBoundingBox; }
virtual FloatRect repaintRectInLocalCoordinatesExcludingSVGShadow() const { return m_repaintBoundingBoxExcludingShadow; }
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
virtual LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const override;
virtual void computeFloatRectForRepaint(const RenderLayerModelObject* repaintContainer, FloatRect& repaintRect, bool fixed) const override;
virtual void mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0) const override;
virtual const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const override;
virtual bool canBeSelectionLeaf() const override { return false; }
virtual bool canHaveChildren() const override { return true; }
bool shouldApplyViewportClip() const;
void updateCachedBoundaries();
void buildLocalToBorderBoxTransform();
IntSize m_containerSize;
FloatRect m_objectBoundingBox;
bool m_objectBoundingBoxValid;
FloatRect m_strokeBoundingBox;
FloatRect m_repaintBoundingBox;
FloatRect m_repaintBoundingBoxExcludingShadow;
mutable AffineTransform m_localToParentTransform;
AffineTransform m_localToBorderBoxTransform;
HashSet<RenderSVGResourceContainer*> m_resourcesNeedingToInvalidateClients;
bool m_isLayoutSizeChanged : 1;
bool m_needsBoundariesOrTransformUpdate : 1;
bool m_hasSVGShadow : 1;
bool m_hasBoxDecorations : 1;
};
RENDER_OBJECT_TYPE_CASTS(RenderSVGRoot, isSVGRoot())
} // namespace WebCore
#endif // RenderSVGRoot_h
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