1 | /* |
2 | * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
3 | * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org> |
4 | * Copyright (C) 2009 Google, Inc. All rights reserved. |
5 | * Copyright (C) 2009 Apple Inc. All rights reserved. |
6 | * |
7 | * This library is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU Library General Public |
9 | * License as published by the Free Software Foundation; either |
10 | * version 2 of the License, or (at your option) any later version. |
11 | * |
12 | * This library is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | * Library General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU Library General Public License |
18 | * along with this library; see the file COPYING.LIB. If not, write to |
19 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | * Boston, MA 02110-1301, USA. |
21 | */ |
22 | |
23 | #pragma once |
24 | |
25 | #include "FloatRect.h" |
26 | #include "RenderReplaced.h" |
27 | #include "SVGRenderSupport.h" |
28 | |
29 | namespace WebCore { |
30 | |
31 | class AffineTransform; |
32 | class RenderSVGResourceContainer; |
33 | class SVGSVGElement; |
34 | |
35 | class RenderSVGRoot final : public RenderReplaced { |
36 | WTF_MAKE_ISO_ALLOCATED(RenderSVGRoot); |
37 | public: |
38 | RenderSVGRoot(SVGSVGElement&, RenderStyle&&); |
39 | virtual ~RenderSVGRoot(); |
40 | |
41 | SVGSVGElement& svgSVGElement() const; |
42 | |
43 | bool isEmbeddedThroughSVGImage() const; |
44 | bool isEmbeddedThroughFrameContainingSVGDocument() const; |
45 | |
46 | void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio) const override; |
47 | |
48 | bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; } |
49 | void setNeedsBoundariesUpdate() override { m_needsBoundariesOrTransformUpdate = true; } |
50 | bool needsBoundariesUpdate() override { return m_needsBoundariesOrTransformUpdate; } |
51 | void setNeedsTransformUpdate() override { m_needsBoundariesOrTransformUpdate = true; } |
52 | |
53 | IntSize containerSize() const { return m_containerSize; } |
54 | void setContainerSize(const IntSize& containerSize) { m_containerSize = containerSize; } |
55 | |
56 | bool hasRelativeDimensions() const override; |
57 | |
58 | // localToBorderBoxTransform maps local SVG viewport coordinates to local CSS box coordinates. |
59 | const AffineTransform& localToBorderBoxTransform() const { return m_localToBorderBoxTransform; } |
60 | |
61 | // The flag is cleared at the beginning of each layout() pass. Elements then call this |
62 | // method during layout when they are invalidated by a filter. |
63 | static void addResourceForClientInvalidation(RenderSVGResourceContainer*); |
64 | |
65 | private: |
66 | void element() const = delete; |
67 | |
68 | bool isSVGRoot() const override { return true; } |
69 | const char* renderName() const override { return "RenderSVGRoot" ; } |
70 | |
71 | LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred = ComputeActual) const override; |
72 | LayoutUnit computeReplacedLogicalHeight(Optional<LayoutUnit> estimatedUsedWidth = WTF::nullopt) const override; |
73 | void layout() override; |
74 | void paintReplaced(PaintInfo&, const LayoutPoint&) override; |
75 | |
76 | void willBeDestroyed() override; |
77 | |
78 | void insertedIntoTree() override; |
79 | void willBeRemovedFromTree() override; |
80 | |
81 | void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override; |
82 | |
83 | const AffineTransform& localToParentTransform() const override; |
84 | |
85 | bool fillContains(const FloatPoint&) const; |
86 | bool strokeContains(const FloatPoint&) const; |
87 | |
88 | FloatRect objectBoundingBox() const override { return m_objectBoundingBox; } |
89 | FloatRect strokeBoundingBox() const override { return m_strokeBoundingBox; } |
90 | FloatRect repaintRectInLocalCoordinates() const override { return m_repaintBoundingBox; } |
91 | |
92 | bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override; |
93 | |
94 | LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const override; |
95 | Optional<FloatRect> computeFloatVisibleRectInContainer(const FloatRect&, const RenderLayerModelObject* container, VisibleRectContext) const override; |
96 | |
97 | void mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState&, MapCoordinatesFlags, bool* wasFixed) const override; |
98 | const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const override; |
99 | |
100 | bool canBeSelectionLeaf() const override { return false; } |
101 | bool canHaveChildren() const override { return true; } |
102 | |
103 | bool shouldApplyViewportClip() const; |
104 | void updateCachedBoundaries(); |
105 | void buildLocalToBorderBoxTransform(); |
106 | |
107 | IntSize m_containerSize; |
108 | FloatRect m_objectBoundingBox; |
109 | bool m_objectBoundingBoxValid; |
110 | FloatRect m_strokeBoundingBox; |
111 | FloatRect m_repaintBoundingBox; |
112 | FloatRect m_repaintBoundingBoxExcludingShadow; |
113 | mutable AffineTransform m_localToParentTransform; |
114 | AffineTransform m_localToBorderBoxTransform; |
115 | HashSet<RenderSVGResourceContainer*> m_resourcesNeedingToInvalidateClients; |
116 | bool m_isLayoutSizeChanged : 1; |
117 | bool m_needsBoundariesOrTransformUpdate : 1; |
118 | bool m_hasBoxDecorations : 1; |
119 | }; |
120 | |
121 | } // namespace WebCore |
122 | |
123 | SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGRoot, isSVGRoot()) |
124 | |