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1 /* | 1 /* |
2 * Copyright (C) 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2012 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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49 // coordinates to visual coordinates. | 49 // coordinates to visual coordinates. |
50 // | 50 // |
51 // Column spans result in the creation of new column sets, since a spanning rend
erer has to be | 51 // Column spans result in the creation of new column sets, since a spanning rend
erer has to be |
52 // placed in between the column sets that come before and after the span. | 52 // placed in between the column sets that come before and after the span. |
53 class RenderMultiColumnSet final : public RenderRegion { | 53 class RenderMultiColumnSet final : public RenderRegion { |
54 public: | 54 public: |
55 enum BalancedHeightCalculation { GuessFromFlowThreadPortion, StretchBySpaceS
hortage }; | 55 enum BalancedHeightCalculation { GuessFromFlowThreadPortion, StretchBySpaceS
hortage }; |
56 | 56 |
57 static RenderMultiColumnSet* createAnonymous(RenderFlowThread*, RenderStyle*
parentStyle); | 57 static RenderMultiColumnSet* createAnonymous(RenderFlowThread*, RenderStyle*
parentStyle); |
58 | 58 |
59 virtual bool isRenderMultiColumnSet() const override { return true; } | 59 virtual bool isOfType(RenderObjectType type) const override { return type ==
RenderObjectRenderMultiColumnSet || RenderRegion::isOfType(type); } |
60 | 60 |
61 virtual LayoutUnit pageLogicalWidth() const override final { return flowThre
ad()->logicalWidth(); } | 61 virtual LayoutUnit pageLogicalWidth() const override final { return flowThre
ad()->logicalWidth(); } |
62 virtual LayoutUnit pageLogicalHeight() const override final { return m_colum
nHeight; } | 62 virtual LayoutUnit pageLogicalHeight() const override final { return m_colum
nHeight; } |
63 | 63 |
64 RenderBlockFlow* multiColumnBlockFlow() const { return toRenderBlockFlow(par
ent()); } | 64 RenderBlockFlow* multiColumnBlockFlow() const { return toRenderBlockFlow(par
ent()); } |
65 RenderMultiColumnFlowThread* multiColumnFlowThread() const | 65 RenderMultiColumnFlowThread* multiColumnFlowThread() const |
66 { | 66 { |
67 ASSERT_WITH_SECURITY_IMPLICATION(!flowThread() || flowThread()->isRender
MultiColumnFlowThread()); | 67 ASSERT_WITH_SECURITY_IMPLICATION(!flowThread() || flowThread()->isRender
MultiColumnFlowThread()); |
68 return static_cast<RenderMultiColumnFlowThread*>(flowThread()); | 68 return static_cast<RenderMultiColumnFlowThread*>(flowThread()); |
69 } | 69 } |
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201 }; | 201 }; |
202 Vector<ContentRun, 1> m_contentRuns; | 202 Vector<ContentRun, 1> m_contentRuns; |
203 }; | 203 }; |
204 | 204 |
205 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderMultiColumnSet, isRenderMultiColumnSet()); | 205 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderMultiColumnSet, isRenderMultiColumnSet()); |
206 | 206 |
207 } // namespace blink | 207 } // namespace blink |
208 | 208 |
209 #endif // RenderMultiColumnSet_h | 209 #endif // RenderMultiColumnSet_h |
210 | 210 |
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