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1 /* | 1 /* |
2 * Copyright (C) 2007 Apple Inc. All rights reserved. | 2 * Copyright (C) 2007 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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30 #include "platform/geometry/LayoutRect.h" | 30 #include "platform/geometry/LayoutRect.h" |
31 #include "wtf/HashMap.h" | 31 #include "wtf/HashMap.h" |
32 #include "wtf/Noncopyable.h" | 32 #include "wtf/Noncopyable.h" |
33 | 33 |
34 namespace WebCore { | 34 namespace WebCore { |
35 | 35 |
36 class RenderBlockFlow; | 36 class RenderBlockFlow; |
37 class RenderBox; | 37 class RenderBox; |
38 class RenderObject; | 38 class RenderObject; |
39 class RenderFlowThread; | 39 class RenderFlowThread; |
40 class ShapeInsideInfo; | |
41 | 40 |
42 class LayoutState { | 41 class LayoutState { |
43 WTF_MAKE_NONCOPYABLE(LayoutState); | 42 WTF_MAKE_NONCOPYABLE(LayoutState); |
44 public: | 43 public: |
45 // Constructor for root LayoutState created by RenderView | 44 // Constructor for root LayoutState created by RenderView |
46 LayoutState(LayoutUnit pageLogicalHeight, bool pageLogicalHeightChanged) | 45 LayoutState(LayoutUnit pageLogicalHeight, bool pageLogicalHeightChanged) |
47 : m_clipped(false) | 46 : m_clipped(false) |
48 , m_isPaginated(pageLogicalHeight) | 47 , m_isPaginated(pageLogicalHeight) |
49 , m_pageLogicalHeightChanged(pageLogicalHeightChanged) | 48 , m_pageLogicalHeightChanged(pageLogicalHeightChanged) |
50 #if !ASSERT_DISABLED | 49 #if !ASSERT_DISABLED |
51 , m_layoutDeltaXSaturated(false) | 50 , m_layoutDeltaXSaturated(false) |
52 , m_layoutDeltaYSaturated(false) | 51 , m_layoutDeltaYSaturated(false) |
53 #endif | 52 #endif |
54 , m_columnInfo(0) | 53 , m_columnInfo(0) |
55 , m_next(0) | 54 , m_next(0) |
56 , m_shapeInsideInfo(0) | |
57 , m_pageLogicalHeight(pageLogicalHeight) | 55 , m_pageLogicalHeight(pageLogicalHeight) |
58 #ifndef NDEBUG | 56 #ifndef NDEBUG |
59 , m_renderer(0) | 57 , m_renderer(0) |
60 #endif | 58 #endif |
61 { | 59 { |
62 } | 60 } |
63 | 61 |
64 LayoutState(LayoutState*, RenderBox&, const LayoutSize& offset, LayoutUnit p
ageLogicalHeight, bool pageHeightLogicalChanged, ColumnInfo*); | 62 LayoutState(LayoutState*, RenderBox&, const LayoutSize& offset, LayoutUnit p
ageLogicalHeight, bool pageHeightLogicalChanged, ColumnInfo*); |
65 explicit LayoutState(RenderObject&); | 63 explicit LayoutState(RenderObject&); |
66 | 64 |
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93 const LayoutSize& layoutOffset() const { return m_layoutOffset; } | 91 const LayoutSize& layoutOffset() const { return m_layoutOffset; } |
94 const LayoutSize& layoutDelta() const { return m_layoutDelta; } | 92 const LayoutSize& layoutDelta() const { return m_layoutDelta; } |
95 const LayoutSize& pageOffset() const { return m_pageOffset; } | 93 const LayoutSize& pageOffset() const { return m_pageOffset; } |
96 LayoutUnit pageLogicalHeight() const { return m_pageLogicalHeight; } | 94 LayoutUnit pageLogicalHeight() const { return m_pageLogicalHeight; } |
97 bool pageLogicalHeightChanged() const { return m_pageLogicalHeightChanged; } | 95 bool pageLogicalHeightChanged() const { return m_pageLogicalHeightChanged; } |
98 | 96 |
99 LayoutState* next() const { return m_next; } | 97 LayoutState* next() const { return m_next; } |
100 | 98 |
101 bool needsBlockDirectionLocationSetBeforeLayout() const { return m_isPaginat
ed && m_pageLogicalHeight; } | 99 bool needsBlockDirectionLocationSetBeforeLayout() const { return m_isPaginat
ed && m_pageLogicalHeight; } |
102 | 100 |
103 ShapeInsideInfo* shapeInsideInfo() const { return m_shapeInsideInfo; } | |
104 ColumnInfo* columnInfo() const { return m_columnInfo; } | 101 ColumnInfo* columnInfo() const { return m_columnInfo; } |
105 | 102 |
106 const LayoutRect& clipRect() const { return m_clipRect; } | 103 const LayoutRect& clipRect() const { return m_clipRect; } |
107 const LayoutSize& paintOffset() const { return m_paintOffset; } | 104 const LayoutSize& paintOffset() const { return m_paintOffset; } |
108 | 105 |
109 #ifndef NDEBUG | 106 #ifndef NDEBUG |
110 RenderObject* renderer() const { return m_renderer; } | 107 RenderObject* renderer() const { return m_renderer; } |
111 #endif | 108 #endif |
112 #if !ASSERT_DISABLED | 109 #if !ASSERT_DISABLED |
113 bool layoutDeltaXSaturated() const { return m_layoutDeltaXSaturated; } | 110 bool layoutDeltaXSaturated() const { return m_layoutDeltaXSaturated; } |
114 bool layoutDeltaYSaturated() const { return m_layoutDeltaYSaturated; } | 111 bool layoutDeltaYSaturated() const { return m_layoutDeltaYSaturated; } |
115 #endif | 112 #endif |
116 | 113 |
117 private: | 114 private: |
118 // Do not add anything apart from bitfields until after m_columnInfo. See ht
tps://bugs.webkit.org/show_bug.cgi?id=100173 | 115 // Do not add anything apart from bitfields until after m_columnInfo. See ht
tps://bugs.webkit.org/show_bug.cgi?id=100173 |
119 bool m_clipped:1; | 116 bool m_clipped:1; |
120 bool m_isPaginated:1; | 117 bool m_isPaginated:1; |
121 // If our page height has changed, this will force all blocks to relayout. | 118 // If our page height has changed, this will force all blocks to relayout. |
122 bool m_pageLogicalHeightChanged:1; | 119 bool m_pageLogicalHeightChanged:1; |
123 #if !ASSERT_DISABLED | 120 #if !ASSERT_DISABLED |
124 bool m_layoutDeltaXSaturated:1; | 121 bool m_layoutDeltaXSaturated:1; |
125 bool m_layoutDeltaYSaturated:1; | 122 bool m_layoutDeltaYSaturated:1; |
126 #endif | 123 #endif |
127 // If the enclosing pagination model is a column model, then this will store
column information for easy retrieval/manipulation. | 124 // If the enclosing pagination model is a column model, then this will store
column information for easy retrieval/manipulation. |
128 ColumnInfo* m_columnInfo; | 125 ColumnInfo* m_columnInfo; |
129 LayoutState* m_next; | 126 LayoutState* m_next; |
130 ShapeInsideInfo* m_shapeInsideInfo; | |
131 | 127 |
132 // FIXME: Distinguish between the layout clip rect and the paint clip rect w
hich may be larger, | 128 // FIXME: Distinguish between the layout clip rect and the paint clip rect w
hich may be larger, |
133 // e.g., because of composited scrolling. | 129 // e.g., because of composited scrolling. |
134 LayoutRect m_clipRect; | 130 LayoutRect m_clipRect; |
135 | 131 |
136 // x/y offset from container. Includes relative positioning and scroll offse
ts. | 132 // x/y offset from container. Includes relative positioning and scroll offse
ts. |
137 LayoutSize m_paintOffset; | 133 LayoutSize m_paintOffset; |
138 // x/y offset from container. Does not include relative positioning or scrol
l offsets. | 134 // x/y offset from container. Does not include relative positioning or scrol
l offsets. |
139 LayoutSize m_layoutOffset; | 135 LayoutSize m_layoutOffset; |
140 // Transient offset from the final position of the object | 136 // Transient offset from the final position of the object |
141 // used to ensure that repaints happen in the correct place. | 137 // used to ensure that repaints happen in the correct place. |
142 // This is a total delta accumulated from the root. | 138 // This is a total delta accumulated from the root. |
143 LayoutSize m_layoutDelta; | 139 LayoutSize m_layoutDelta; |
144 | 140 |
145 // The current page height for the pagination model that encloses us. | 141 // The current page height for the pagination model that encloses us. |
146 LayoutUnit m_pageLogicalHeight; | 142 LayoutUnit m_pageLogicalHeight; |
147 // The offset of the start of the first page in the nearest enclosing pagina
tion model. | 143 // The offset of the start of the first page in the nearest enclosing pagina
tion model. |
148 LayoutSize m_pageOffset; | 144 LayoutSize m_pageOffset; |
149 | 145 |
150 #ifndef NDEBUG | 146 #ifndef NDEBUG |
151 RenderObject* m_renderer; | 147 RenderObject* m_renderer; |
152 #endif | 148 #endif |
153 }; | 149 }; |
154 | 150 |
155 } // namespace WebCore | 151 } // namespace WebCore |
156 | 152 |
157 #endif // LayoutState_h | 153 #endif // LayoutState_h |
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