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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) 2009-2016 Google, Inc. All rights reserved.
* Copyright (C) 2009 Apple Inc. All rights reserved.
* Copyright (C) 2020, 2021, 2022 Igalia S.L.
*
* 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.
*/
#pragma once
#include "FloatRect.h"
#include "RenderReplaced.h"
#include "SVGBoundingBoxComputation.h"
namespace WebCore {
class RenderSVGViewportContainer;
class SVGSVGElement;
class RenderSVGRoot final : public RenderReplaced {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(RenderSVGRoot);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RenderSVGRoot);
public:
RenderSVGRoot(SVGSVGElement&, RenderStyle&&);
virtual ~RenderSVGRoot();
SVGSVGElement& svgSVGElement() const;
FloatSize computeViewportSize() const;
bool isEmbeddedThroughSVGImage() const;
bool isEmbeddedThroughFrameContainingSVGDocument() const;
void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, FloatSize& intrinsicRatio) const final;
bool hasIntrinsicAspectRatio() const final;
bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; }
bool didTransformToRootUpdate() const { return m_didTransformToRootUpdate; }
bool isInLayout() const { return m_inLayout; }
IntSize containerSize() const { return m_containerSize; }
void setContainerSize(const IntSize& containerSize) { m_containerSize = containerSize; }
bool hasRelativeDimensions() const final;
bool shouldApplyViewportClip() const;
FloatRect objectBoundingBox() const final { return m_objectBoundingBox; }
FloatRect objectBoundingBoxWithoutTransformations() const final { return m_objectBoundingBoxWithoutTransformations; }
FloatRect strokeBoundingBox() const final;
FloatRect repaintRectInLocalCoordinates(RepaintRectCalculation = RepaintRectCalculation::Fast) const final { return SVGBoundingBoxComputation::computeRepaintBoundingBox(*this); }
LayoutRect visualOverflowRectEquivalent() const { return SVGBoundingBoxComputation::computeVisualOverflowRect(*this); }
RenderSVGViewportContainer* viewportContainer() const;
CheckedPtr<RenderSVGViewportContainer> checkedViewportContainer() const;
private:
void element() const = delete;
ASCIILiteral renderName() const final { return "RenderSVGRoot"_s; }
bool requiresLayer() const final { return true; }
bool updateLayoutSizeIfNeeded();
bool paintingAffectedByExternalOffset() const;
// To prevent certain legacy code paths to hit assertions in debug builds, when switching off LBSE (during the teardown of the LBSE tree).
std::optional<FloatRect> computeFloatVisibleRectInContainer(const FloatRect&, const RenderLayerModelObject*, VisibleRectContext) const final { return std::nullopt; }
LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred = ShouldComputePreferred::ComputeActual) const final;
LayoutUnit computeReplacedLogicalHeight(std::optional<LayoutUnit> estimatedUsedWidth = std::nullopt) const final;
void layout() final;
void layoutChildren();
void paint(PaintInfo&, const LayoutPoint&) final;
void paintObject(PaintInfo&, const LayoutPoint&) final;
void paintContents(PaintInfo&, const LayoutPoint&);
void willBeDestroyed() final;
void updateFromStyle() final;
bool needsHasSVGTransformFlags() const final;
void updateLayerTransform() final;
FloatSize calculateIntrinsicSize() const;
bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) final;
LayoutRect overflowClipRect(const LayoutPoint& location, OverlayScrollbarSizeRelevancy = OverlayScrollbarSizeRelevancy::IgnoreOverlayScrollbarSize, PaintPhase = PaintPhase::BlockBackground) const final;
void mapLocalToContainer(const RenderLayerModelObject* ancestorContainer, TransformState&, OptionSet<MapCoordinatesMode>, bool* wasFixed) const final;
void boundingRects(Vector<LayoutRect>&, const LayoutPoint& accumulatedOffset) const final;
void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const final;
bool canBeSelectionLeaf() const final { return false; }
bool canHaveChildren() const final { return true; }
bool m_inLayout { false };
bool m_didTransformToRootUpdate { false };
bool m_isLayoutSizeChanged { false };
IntSize m_containerSize;
FloatRect m_objectBoundingBox;
FloatRect m_objectBoundingBoxWithoutTransformations;
mutable Markable<FloatRect, FloatRect::MarkableTraits> m_strokeBoundingBox;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGRoot, isRenderSVGRoot())
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