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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
#if ENABLE(SVG)
#include "FloatRect.h"
#include "RenderReplaced.h"
#include "SVGRenderSupport.h"
namespace WebCore {
class AffineTransform;
class SVGStyledElement;
class RenderSVGRoot : public RenderReplaced {
public:
explicit RenderSVGRoot(SVGStyledElement*);
virtual ~RenderSVGRoot();
bool isEmbeddedThroughSVGImage() const;
bool isEmbeddedThroughFrameContainingSVGDocument() const;
virtual void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio, bool& isPercentageIntrinsicSize) const;
RenderObject* firstChild() const { ASSERT(children() == virtualChildren()); return children()->firstChild(); }
RenderObject* lastChild() const { ASSERT(children() == virtualChildren()); return children()->lastChild(); }
const RenderObjectChildList* children() const { return &m_children; }
RenderObjectChildList* children() { return &m_children; }
bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; }
virtual void setNeedsBoundariesUpdate() { m_needsBoundariesOrTransformUpdate = true; }
virtual bool needsBoundariesUpdate() OVERRIDE { return m_needsBoundariesOrTransformUpdate; }
virtual void setNeedsTransformUpdate() { m_needsBoundariesOrTransformUpdate = true; }
IntSize containerSize() const { return m_containerSize; }
void setContainerSize(const IntSize& containerSize) { m_containerSize = containerSize; }
virtual bool hasRelativeDimensions() const OVERRIDE;
virtual bool hasRelativeIntrinsicLogicalWidth() const OVERRIDE;
virtual bool hasRelativeLogicalHeight() 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:
virtual RenderObjectChildList* virtualChildren() { return children(); }
virtual const RenderObjectChildList* virtualChildren() const { return children(); }
virtual bool isSVGRoot() const { return true; }
virtual const char* renderName() const { return "RenderSVGRoot"; }
virtual LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred = ComputeActual) const OVERRIDE;
virtual LayoutUnit computeReplacedLogicalHeight() const;
virtual void layout();
virtual void paintReplaced(PaintInfo&, const LayoutPoint&);
virtual void willBeDestroyed();
virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0) OVERRIDE;
virtual void removeChild(RenderObject*) OVERRIDE;
virtual const AffineTransform& localToParentTransform() const;
bool fillContains(const FloatPoint&) const;
bool strokeContains(const FloatPoint&) const;
virtual FloatRect objectBoundingBox() const { return m_objectBoundingBox; }
virtual FloatRect strokeBoundingBox() const { return m_strokeBoundingBox; }
virtual FloatRect repaintRectInLocalCoordinates() const { 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 { return false; }
virtual bool canHaveChildren() const { return true; }
void updateCachedBoundaries();
void buildLocalToBorderBoxTransform();
RenderObjectChildList m_children;
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;
};
inline RenderSVGRoot* toRenderSVGRoot(RenderObject* object)
{
ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGRoot());
return static_cast<RenderSVGRoot*>(object);
}
inline const RenderSVGRoot* toRenderSVGRoot(const RenderObject* object)
{
ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGRoot());
return static_cast<const RenderSVGRoot*>(object);
}
// This will catch anyone doing an unnecessary cast.
void toRenderSVGRoot(const RenderSVGRoot*);
} // namespace WebCore
#endif // ENABLE(SVG)
#endif // RenderSVGRoot_h
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