1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
* 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
#if ENABLE(LAYER_BASED_SVG_ENGINE)
#include "FloatRect.h"
#include "RenderReplaced.h"
#include "SVGBoundingBoxComputation.h"
namespace WebCore {
class RenderSVGResourceContainer;
class RenderSVGViewportContainer;
class SVGSVGElement;
class RenderSVGRoot final : public RenderReplaced {
WTF_MAKE_ISO_ALLOCATED(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;
// 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 shouldApplyViewportClip() const;
FloatRect objectBoundingBox() const final { return m_objectBoundingBox; }
FloatRect objectBoundingBoxWithoutTransformations() const final { return m_objectBoundingBoxWithoutTransformations; }
FloatRect strokeBoundingBox() const final { return m_strokeBoundingBox; }
FloatRect repaintRectInLocalCoordinates() const final { return SVGBoundingBoxComputation::computeRepaintBoundingBox(*this); }
LayoutRect visualOverflowRectEquivalent() const { return SVGBoundingBoxComputation::computeVisualOverflowRect(*this); }
RenderSVGViewportContainer* viewportContainer() const;
private:
void element() const = delete;
bool isSVGRoot() const final { return true; }
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 = 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 insertedIntoTree(IsInternalMove) final;
void willBeRemovedFromTree(IsInternalMove) final;
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) 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, RenderFragmentContainer* = nullptr, OverlayScrollbarSizeRelevancy = IgnoreOverlayScrollbarSize, PaintPhase = PaintPhase::BlockBackground) const final;
LayoutRect clippedOverflowRect(const RenderLayerModelObject* repaintContainer, VisibleRectContext) 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;
FloatRect m_strokeBoundingBox;
WeakHashSet<RenderSVGResourceContainer> m_resourcesNeedingToInvalidateClients;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGRoot, isSVGRoot())
#endif // ENABLE(LAYER_BASED_SVG_ENGINE)
|
