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Side by Side Diff: Source/core/layout/LayoutFlexibleBox.cpp

Issue 1070143002: [Alignment] Single class for holding the alignment data. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Using the StyleConverter. Created 5 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2011 Google Inc. All rights reserved. 2 * Copyright (C) 2011 Google 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 are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
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1063 return isHorizontalFlow() && child.style()->height().isAuto(); 1063 return isHorizontalFlow() && child.style()->height().isAuto();
1064 } 1064 }
1065 1065
1066 void LayoutFlexibleBox::layoutAndPlaceChildren(LayoutUnit& crossAxisOffset, cons t OrderedFlexItemList& children, const Vector<LayoutUnit, 16>& childSizes, Layou tUnit availableFreeSpace, bool relayoutChildren, Vector<LineContext>& lineContex ts) 1066 void LayoutFlexibleBox::layoutAndPlaceChildren(LayoutUnit& crossAxisOffset, cons t OrderedFlexItemList& children, const Vector<LayoutUnit, 16>& childSizes, Layou tUnit availableFreeSpace, bool relayoutChildren, Vector<LineContext>& lineContex ts)
1067 { 1067 {
1068 ASSERT(childSizes.size() == children.size()); 1068 ASSERT(childSizes.size() == children.size());
1069 1069
1070 size_t numberOfChildrenForJustifyContent = numberOfInFlowPositionedChildren( children); 1070 size_t numberOfChildrenForJustifyContent = numberOfInFlowPositionedChildren( children);
1071 LayoutUnit autoMarginOffset = autoMarginOffsetInMainAxis(children, available FreeSpace); 1071 LayoutUnit autoMarginOffset = autoMarginOffsetInMainAxis(children, available FreeSpace);
1072 LayoutUnit mainAxisOffset = flowAwareBorderStart() + flowAwarePaddingStart() ; 1072 LayoutUnit mainAxisOffset = flowAwareBorderStart() + flowAwarePaddingStart() ;
1073 mainAxisOffset += initialJustifyContentOffset(availableFreeSpace, style()->j ustifyContent(), style()->justifyContentDistribution(), numberOfChildrenForJusti fyContent); 1073 mainAxisOffset += initialJustifyContentOffset(availableFreeSpace, style()->j ustifyContentPosition(), style()->justifyContentDistribution(), numberOfChildren ForJustifyContent);
1074 if (style()->flexDirection() == FlowRowReverse) 1074 if (style()->flexDirection() == FlowRowReverse)
1075 mainAxisOffset += isHorizontalFlow() ? verticalScrollbarWidth() : horizo ntalScrollbarHeight(); 1075 mainAxisOffset += isHorizontalFlow() ? verticalScrollbarWidth() : horizo ntalScrollbarHeight();
1076 1076
1077 LayoutUnit totalMainExtent = mainAxisExtent(); 1077 LayoutUnit totalMainExtent = mainAxisExtent();
1078 LayoutUnit maxAscent = 0, maxDescent = 0; // Used when align-items: baseline . 1078 LayoutUnit maxAscent = 0, maxDescent = 0; // Used when align-items: baseline .
1079 LayoutUnit maxChildCrossAxisExtent = 0; 1079 LayoutUnit maxChildCrossAxisExtent = 0;
1080 size_t seenInFlowPositionedChildren = 0; 1080 size_t seenInFlowPositionedChildren = 0;
1081 bool shouldFlipMainAxis = !isColumnFlow() && !isLeftToRightFlow(); 1081 bool shouldFlipMainAxis = !isColumnFlow() && !isLeftToRightFlow();
1082 for (size_t i = 0; i < children.size(); ++i) { 1082 for (size_t i = 0; i < children.size(); ++i) {
1083 LayoutBox* child = children[i]; 1083 LayoutBox* child = children[i];
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1154 crossAxisOffset += maxChildCrossAxisExtent; 1154 crossAxisOffset += maxChildCrossAxisExtent;
1155 } 1155 }
1156 1156
1157 void LayoutFlexibleBox::layoutColumnReverse(const OrderedFlexItemList& children, LayoutUnit crossAxisOffset, LayoutUnit availableFreeSpace) 1157 void LayoutFlexibleBox::layoutColumnReverse(const OrderedFlexItemList& children, LayoutUnit crossAxisOffset, LayoutUnit availableFreeSpace)
1158 { 1158 {
1159 // This is similar to the logic in layoutAndPlaceChildren, except we place t he children 1159 // This is similar to the logic in layoutAndPlaceChildren, except we place t he children
1160 // starting from the end of the flexbox. We also don't need to layout anythi ng since we're 1160 // starting from the end of the flexbox. We also don't need to layout anythi ng since we're
1161 // just moving the children to a new position. 1161 // just moving the children to a new position.
1162 size_t numberOfChildrenForJustifyContent = numberOfInFlowPositionedChildren( children); 1162 size_t numberOfChildrenForJustifyContent = numberOfInFlowPositionedChildren( children);
1163 LayoutUnit mainAxisOffset = logicalHeight() - flowAwareBorderEnd() - flowAwa rePaddingEnd(); 1163 LayoutUnit mainAxisOffset = logicalHeight() - flowAwareBorderEnd() - flowAwa rePaddingEnd();
1164 mainAxisOffset -= initialJustifyContentOffset(availableFreeSpace, style()->j ustifyContent(), style()->justifyContentDistribution(), numberOfChildrenForJusti fyContent); 1164 mainAxisOffset -= initialJustifyContentOffset(availableFreeSpace, style()->j ustifyContentPosition(), style()->justifyContentDistribution(), numberOfChildren ForJustifyContent);
1165 mainAxisOffset -= isHorizontalFlow() ? verticalScrollbarWidth() : horizontal ScrollbarHeight(); 1165 mainAxisOffset -= isHorizontalFlow() ? verticalScrollbarWidth() : horizontal ScrollbarHeight();
1166 1166
1167 size_t seenInFlowPositionedChildren = 0; 1167 size_t seenInFlowPositionedChildren = 0;
1168 for (size_t i = 0; i < children.size(); ++i) { 1168 for (size_t i = 0; i < children.size(); ++i) {
1169 LayoutBox* child = children[i]; 1169 LayoutBox* child = children[i];
1170 1170
1171 if (child->isOutOfFlowPositioned()) { 1171 if (child->isOutOfFlowPositioned()) {
1172 child->layer()->setStaticBlockPosition(mainAxisOffset); 1172 child->layer()->setStaticBlockPosition(mainAxisOffset);
1173 continue; 1173 continue;
1174 } 1174 }
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1223 } 1223 }
1224 1224
1225 if (style()->alignContent() == ContentPositionFlexStart) 1225 if (style()->alignContent() == ContentPositionFlexStart)
1226 return; 1226 return;
1227 1227
1228 LayoutUnit availableCrossAxisSpace = crossAxisContentExtent(); 1228 LayoutUnit availableCrossAxisSpace = crossAxisContentExtent();
1229 for (size_t i = 0; i < lineContexts.size(); ++i) 1229 for (size_t i = 0; i < lineContexts.size(); ++i)
1230 availableCrossAxisSpace -= lineContexts[i].crossAxisExtent; 1230 availableCrossAxisSpace -= lineContexts[i].crossAxisExtent;
1231 1231
1232 LayoutBox* child = m_orderIterator.first(); 1232 LayoutBox* child = m_orderIterator.first();
1233 LayoutUnit lineOffset = initialAlignContentOffset(availableCrossAxisSpace, s tyle()->alignContent(), style()->alignContentDistribution(), lineContexts.size() ); 1233 LayoutUnit lineOffset = initialAlignContentOffset(availableCrossAxisSpace, s tyle()->alignContentPosition(), style()->alignContentDistribution(), lineContext s.size());
1234 for (unsigned lineNumber = 0; lineNumber < lineContexts.size(); ++lineNumber ) { 1234 for (unsigned lineNumber = 0; lineNumber < lineContexts.size(); ++lineNumber ) {
1235 lineContexts[lineNumber].crossAxisOffset += lineOffset; 1235 lineContexts[lineNumber].crossAxisOffset += lineOffset;
1236 for (size_t childNumber = 0; childNumber < lineContexts[lineNumber].numb erOfChildren; ++childNumber, child = m_orderIterator.next()) 1236 for (size_t childNumber = 0; childNumber < lineContexts[lineNumber].numb erOfChildren; ++childNumber, child = m_orderIterator.next())
1237 adjustAlignmentForChild(*child, lineOffset); 1237 adjustAlignmentForChild(*child, lineOffset);
1238 1238
1239 if (style()->alignContentDistribution() == ContentDistributionStretch && availableCrossAxisSpace > 0) 1239 if (style()->alignContentDistribution() == ContentDistributionStretch && availableCrossAxisSpace > 0)
1240 lineContexts[lineNumber].crossAxisExtent += availableCrossAxisSpace / static_cast<unsigned>(lineContexts.size()); 1240 lineContexts[lineNumber].crossAxisExtent += availableCrossAxisSpace / static_cast<unsigned>(lineContexts.size());
1241 1241
1242 lineOffset += alignContentSpaceBetweenChildren(availableCrossAxisSpace, style()->alignContentDistribution(), lineContexts.size()); 1242 lineOffset += alignContentSpaceBetweenChildren(availableCrossAxisSpace, style()->alignContentDistribution(), lineContexts.size());
1243 } 1243 }
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1406 ASSERT(child); 1406 ASSERT(child);
1407 LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisE xtent; 1407 LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisE xtent;
1408 LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset - crossAxisStartEdge; 1408 LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset - crossAxisStartEdge;
1409 LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxi sExtent; 1409 LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxi sExtent;
1410 adjustAlignmentForChild(*child, newOffset - originalOffset); 1410 adjustAlignmentForChild(*child, newOffset - originalOffset);
1411 } 1411 }
1412 } 1412 }
1413 } 1413 }
1414 1414
1415 } 1415 }
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