Source/core/rendering/RenderMultiColumnFlowThread.h - Issue 869583002: [New Multicolumn] Support dynamic insertion and removal of multicol content.

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Issue 869583002: [New Multicolumn] Support dynamic insertion and removal of multicol content. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 5 years, 11 months ago

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« LayoutTests/fast/multicol/dynamic/insert-block-before-spanner-before-content.html ('K') | « Source/core/rendering/RenderBox.cpp ('k') | Source/core/rendering/RenderMultiColumnFlowThread.cpp » ('j') | Source/core/rendering/RenderMultiColumnFlowThread.cpp » ('J')
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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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159 void columnRuleStyleDidChange();	159 void columnRuleStyleDidChange();

160	160

161 protected:	161 protected:

162 RenderMultiColumnFlowThread();	162 RenderMultiColumnFlowThread();

163 void setProgressionIsInline(bool isInline) { m_progressionIsInline = isInlin e; }	163 void setProgressionIsInline(bool isInline) { m_progressionIsInline = isInlin e; }

164	164

165 virtual void layout() override;	165 virtual void layout() override;

166	166

167 private:	167 private:

168 void calculateColumnCountAndWidth(LayoutUnit& width, unsigned& count) const;	168 void calculateColumnCountAndWidth(LayoutUnit& width, unsigned& count) const;

169 void createAndInsertMultiColumnSet();	169 void createAndInsertMultiColumnSet(RenderBox* insertBefore = 0);

170 void createAndInsertSpannerPlaceholder(RenderBox* spanner);	170 void createAndInsertSpannerPlaceholder(RenderBox* spanner, RenderBox* insert Before = 0);

171 virtual bool descendantIsValidColumnSpanner(RenderObject* descendant) const;	171 virtual bool descendantIsValidColumnSpanner(RenderObject* descendant) const;

172	172

173 virtual const char* renderName() const override;	173 virtual const char* renderName() const override;

174 virtual void addRegionToThread(RenderMultiColumnSet*) override;	174 virtual void addRegionToThread(RenderMultiColumnSet*) override;

175 virtual void willBeRemovedFromTree() override;	175 virtual void willBeRemovedFromTree() override;

176 virtual LayoutUnit skipColumnSpanner(RenderBox*, LayoutUnit logicalTopInFlow Thread) override;	176 virtual LayoutUnit skipColumnSpanner(RenderBox*, LayoutUnit logicalTopInFlow Thread) override;

177 virtual void flowThreadDescendantWasInserted(RenderObject*) override;	177 virtual void flowThreadDescendantWasInserted(RenderObject*) override;

178 virtual void flowThreadDescendantWillBeRemoved(RenderObject*) override;	178 virtual void flowThreadDescendantWillBeRemoved(RenderObject*) override;

179 virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logic alTop, LogicalExtentComputedValues&) const override;	179 virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logic alTop, LogicalExtentComputedValues&) const override;

180 virtual void updateLogicalWidth() override;	180 virtual void updateLogicalWidth() override;

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192 LayoutUnit m_columnHeightAvailable; // Total height available to columns, or 0 if auto.	192 LayoutUnit m_columnHeightAvailable; // Total height available to columns, or 0 if auto.

193 bool m_inBalancingPass; // Set when relayouting for column balancing.	193 bool m_inBalancingPass; // Set when relayouting for column balancing.

194 bool m_needsColumnHeightsRecalculation; // Set when we need to recalculate t he column set heights after layout.	194 bool m_needsColumnHeightsRecalculation; // Set when we need to recalculate t he column set heights after layout.

195 bool m_progressionIsInline; // Always true for regular multicol. False for p aged-y overflow.	195 bool m_progressionIsInline; // Always true for regular multicol. False for p aged-y overflow.

196 bool m_isBeingEvacuated;	196 bool m_isBeingEvacuated;

197 };	197 };

198	198

199 } // namespace blink	199 } // namespace blink

200	200

201 #endif // RenderMultiColumnFlowThread_h	201 #endif // RenderMultiColumnFlowThread_h

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