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/*
* Copyright (c) 2009, Google Inc. All rights reserved.
* Copyright (C) 2020, 2021, 2022 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(LAYER_BASED_SVG_ENGINE)
#include "RenderBox.h"
#include "RenderLayerModelObject.h"
#include "SVGBoundingBoxComputation.h"
#include "SVGRenderSupport.h"
namespace WebCore {
// Most renderers in the SVG rendering tree will inherit from this class
// but not all. LegacyRenderSVGForeignObject, RenderSVGBlock, etc. inherit from
// existing RenderBlock classes, that all inherit from RenderLayerModelObject
// directly, without RenderSVGModelObject inbetween. Therefore code which
// needs to be shared between all SVG renderers goes to RenderLayerModelObject.
class SVGElement;
class RenderSVGModelObject : public RenderLayerModelObject {
WTF_MAKE_ISO_ALLOCATED(RenderSVGModelObject);
public:
bool requiresLayer() const override { return true; }
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
static bool checkIntersection(RenderElement*, const FloatRect&);
static bool checkEnclosure(RenderElement*, const FloatRect&);
inline SVGElement& element() const;
LayoutRect currentSVGLayoutRect() const { return m_layoutRect; }
void setCurrentSVGLayoutRect(const LayoutRect& layoutRect) { m_layoutRect = layoutRect; }
LayoutPoint currentSVGLayoutLocation() const final { return m_layoutRect.location(); }
void setCurrentSVGLayoutLocation(const LayoutPoint& location) final { m_layoutRect.setLocation(location); }
// Mimic the RenderBox accessors - by sharing the same terminology the painting / hit testing / layout logic is
// similar to read compared to non-SVG renderers such as RenderBox & friends.
LayoutRect borderBoxRectEquivalent() const { return { LayoutPoint(), m_layoutRect.size() }; }
LayoutRect contentBoxRectEquivalent() const { return borderBoxRectEquivalent(); }
LayoutRect frameRectEquivalent() const { return m_layoutRect; }
LayoutRect visualOverflowRectEquivalent() const { return SVGBoundingBoxComputation::computeVisualOverflowRect(*this); }
LayoutSize locationOffsetEquivalent() const { return toLayoutSize(currentSVGLayoutLocation()); }
bool hasVisualOverflow() const { return !borderBoxRectEquivalent().contains(visualOverflowRectEquivalent()); }
// For RenderLayer only
LayoutPoint topLeftLocationEquivalent() const { return currentSVGLayoutLocation(); }
LayoutRect borderBoxRectInFragmentEquivalent(RenderFragmentContainer*, RenderBox::RenderBoxFragmentInfoFlags = RenderBox::CacheRenderBoxFragmentInfo) const { return borderBoxRectEquivalent(); }
virtual LayoutRect overflowClipRect(const LayoutPoint& location, RenderFragmentContainer* = nullptr, OverlayScrollbarSizeRelevancy = IgnoreOverlayScrollbarSize, PaintPhase = PaintPhase::BlockBackground) const;
LayoutRect overflowClipRectForChildLayers(const LayoutPoint& location, RenderFragmentContainer* fragment, OverlayScrollbarSizeRelevancy relevancy) { return overflowClipRect(location, fragment, relevancy); }
protected:
RenderSVGModelObject(Document&, RenderStyle&&);
RenderSVGModelObject(SVGElement&, RenderStyle&&);
void willBeDestroyed() override;
void updateFromStyle() override;
LayoutRect clippedOverflowRect(const RenderLayerModelObject* repaintContainer, VisibleRectContext) const override;
std::optional<LayoutRect> computeVisibleRectInContainer(const LayoutRect&, const RenderLayerModelObject* container, VisibleRectContext) const override;
void mapAbsoluteToLocalPoint(OptionSet<MapCoordinatesMode>, TransformState&) const override;
void mapLocalToContainer(const RenderLayerModelObject* ancestorContainer, TransformState&, OptionSet<MapCoordinatesMode>, bool* wasFixed) const final;
LayoutRect outlineBoundsForRepaint(const RenderLayerModelObject* repaintContainer, const RenderGeometryMap*) const final;
const RenderObject* pushMappingToContainer(const RenderLayerModelObject*, RenderGeometryMap&) const override;
LayoutSize offsetFromContainer(RenderElement&, const LayoutPoint&, bool* offsetDependsOnPoint = nullptr) const override;
void boundingRects(Vector<LayoutRect>&, const LayoutPoint& accumulatedOffset) const override;
void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override;
void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) const override;
// FIXME: [LBSE] Upstream SVG outline painting functionality
// void paintSVGOutline(PaintInfo&, const LayoutPoint& adjustedPaintOffset);
// Returns false if the rect has no intersection with the applied clip rect. When the context specifies edge-inclusive
// intersection, this return value allows distinguishing between no intersection and zero-area intersection.
bool applyCachedClipAndScrollPosition(LayoutRect&, const RenderLayerModelObject* container, VisibleRectContext) const final;
private:
bool isRenderSVGModelObject() const final { return true; }
LayoutSize cachedSizeForOverflowClip() const;
LayoutRect m_layoutRect;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGModelObject, isRenderSVGModelObject())
#endif // ENABLE(LAYER_BASED_SVG_ENGINE)
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