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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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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "config.h" | 31 #include "config.h" |
32 #include "core/rendering/RenderFlexibleBox.h" | 32 #include "core/rendering/RenderFlexibleBox.h" |
33 | 33 |
34 #include <limits> | 34 #include "core/rendering/LayoutRectRecorder.h" |
35 #include "core/rendering/LayoutRepainter.h" | 35 #include "core/rendering/LayoutRepainter.h" |
36 #include "core/rendering/RenderLayer.h" | 36 #include "core/rendering/RenderLayer.h" |
37 #include "core/rendering/RenderView.h" | 37 #include "core/rendering/RenderView.h" |
38 #include "platform/LengthFunctions.h" | 38 #include "platform/LengthFunctions.h" |
39 #include "wtf/MathExtras.h" | 39 #include "wtf/MathExtras.h" |
| 40 #include <limits> |
40 | 41 |
41 namespace WebCore { | 42 namespace WebCore { |
42 | 43 |
43 struct RenderFlexibleBox::LineContext { | 44 struct RenderFlexibleBox::LineContext { |
44 LineContext(LayoutUnit crossAxisOffset, LayoutUnit crossAxisExtent, size_t n
umberOfChildren, LayoutUnit maxAscent) | 45 LineContext(LayoutUnit crossAxisOffset, LayoutUnit crossAxisExtent, size_t n
umberOfChildren, LayoutUnit maxAscent) |
45 : crossAxisOffset(crossAxisOffset) | 46 : crossAxisOffset(crossAxisOffset) |
46 , crossAxisExtent(crossAxisExtent) | 47 , crossAxisExtent(crossAxisExtent) |
47 , numberOfChildren(numberOfChildren) | 48 , numberOfChildren(numberOfChildren) |
48 , maxAscent(maxAscent) | 49 , maxAscent(maxAscent) |
49 { | 50 { |
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220 } | 221 } |
221 | 222 |
222 void RenderFlexibleBox::layoutBlock(bool relayoutChildren, LayoutUnit) | 223 void RenderFlexibleBox::layoutBlock(bool relayoutChildren, LayoutUnit) |
223 { | 224 { |
224 ASSERT(needsLayout()); | 225 ASSERT(needsLayout()); |
225 | 226 |
226 if (!relayoutChildren && simplifiedLayout()) | 227 if (!relayoutChildren && simplifiedLayout()) |
227 return; | 228 return; |
228 | 229 |
229 LayoutRepainter repainter(*this, checkForRepaintDuringLayout()); | 230 LayoutRepainter repainter(*this, checkForRepaintDuringLayout()); |
| 231 LayoutRectRecorder recorder(*this); |
230 | 232 |
231 if (updateLogicalWidthAndColumnWidth()) | 233 if (updateLogicalWidthAndColumnWidth()) |
232 relayoutChildren = true; | 234 relayoutChildren = true; |
233 | 235 |
234 LayoutUnit previousHeight = logicalHeight(); | 236 LayoutUnit previousHeight = logicalHeight(); |
235 setLogicalHeight(borderAndPaddingLogicalHeight() + scrollbarLogicalHeight())
; | 237 setLogicalHeight(borderAndPaddingLogicalHeight() + scrollbarLogicalHeight())
; |
236 | 238 |
237 LayoutStateMaintainer statePusher(view(), this, locationOffset(), hasTransfo
rm() || hasReflection() || style()->isFlippedBlocksWritingMode()); | 239 LayoutStateMaintainer statePusher(view(), this, locationOffset(), hasTransfo
rm() || hasReflection() || style()->isFlippedBlocksWritingMode()); |
238 | 240 |
239 // Regions changing widths can force us to relayout our children. | 241 // Regions changing widths can force us to relayout our children. |
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1061 if (style()->flexDirection() == FlowRowReverse) | 1063 if (style()->flexDirection() == FlowRowReverse) |
1062 mainAxisOffset += isHorizontalFlow() ? verticalScrollbarWidth() : horizo
ntalScrollbarHeight(); | 1064 mainAxisOffset += isHorizontalFlow() ? verticalScrollbarWidth() : horizo
ntalScrollbarHeight(); |
1063 | 1065 |
1064 LayoutUnit totalMainExtent = mainAxisExtent(); | 1066 LayoutUnit totalMainExtent = mainAxisExtent(); |
1065 LayoutUnit maxAscent = 0, maxDescent = 0; // Used when align-items: baseline
. | 1067 LayoutUnit maxAscent = 0, maxDescent = 0; // Used when align-items: baseline
. |
1066 LayoutUnit maxChildCrossAxisExtent = 0; | 1068 LayoutUnit maxChildCrossAxisExtent = 0; |
1067 size_t seenInFlowPositionedChildren = 0; | 1069 size_t seenInFlowPositionedChildren = 0; |
1068 bool shouldFlipMainAxis = !isColumnFlow() && !isLeftToRightFlow(); | 1070 bool shouldFlipMainAxis = !isColumnFlow() && !isLeftToRightFlow(); |
1069 for (size_t i = 0; i < children.size(); ++i) { | 1071 for (size_t i = 0; i < children.size(); ++i) { |
1070 RenderBox* child = children[i]; | 1072 RenderBox* child = children[i]; |
| 1073 LayoutRectRecorder recorder(*child); |
| 1074 |
1071 if (child->isOutOfFlowPositioned()) { | 1075 if (child->isOutOfFlowPositioned()) { |
1072 prepareChildForPositionedLayout(child, mainAxisOffset, crossAxisOffs
et, FlipForRowReverse); | 1076 prepareChildForPositionedLayout(child, mainAxisOffset, crossAxisOffs
et, FlipForRowReverse); |
1073 continue; | 1077 continue; |
1074 } | 1078 } |
1075 | 1079 |
1076 LayoutUnit childPreferredSize = childSizes[i] + mainAxisBorderAndPadding
ExtentForChild(child); | 1080 LayoutUnit childPreferredSize = childSizes[i] + mainAxisBorderAndPadding
ExtentForChild(child); |
1077 setLogicalOverrideSize(child, childPreferredSize); | 1081 setLogicalOverrideSize(child, childPreferredSize); |
1078 if (childPreferredSize != mainAxisExtentForChild(child)) { | 1082 if (childPreferredSize != mainAxisExtentForChild(child)) { |
1079 child->setChildNeedsLayout(MarkOnlyThis); | 1083 child->setChildNeedsLayout(MarkOnlyThis); |
1080 } else { | 1084 } else { |
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1140 // starting from the end of the flexbox. We also don't need to layout anythi
ng since we're | 1144 // starting from the end of the flexbox. We also don't need to layout anythi
ng since we're |
1141 // just moving the children to a new position. | 1145 // just moving the children to a new position. |
1142 size_t numberOfChildrenForJustifyContent = numberOfInFlowPositionedChildren(
children); | 1146 size_t numberOfChildrenForJustifyContent = numberOfInFlowPositionedChildren(
children); |
1143 LayoutUnit mainAxisOffset = logicalHeight() - flowAwareBorderEnd() - flowAwa
rePaddingEnd(); | 1147 LayoutUnit mainAxisOffset = logicalHeight() - flowAwareBorderEnd() - flowAwa
rePaddingEnd(); |
1144 mainAxisOffset -= initialJustifyContentOffset(availableFreeSpace, style()->j
ustifyContent(), numberOfChildrenForJustifyContent); | 1148 mainAxisOffset -= initialJustifyContentOffset(availableFreeSpace, style()->j
ustifyContent(), numberOfChildrenForJustifyContent); |
1145 mainAxisOffset -= isHorizontalFlow() ? verticalScrollbarWidth() : horizontal
ScrollbarHeight(); | 1149 mainAxisOffset -= isHorizontalFlow() ? verticalScrollbarWidth() : horizontal
ScrollbarHeight(); |
1146 | 1150 |
1147 size_t seenInFlowPositionedChildren = 0; | 1151 size_t seenInFlowPositionedChildren = 0; |
1148 for (size_t i = 0; i < children.size(); ++i) { | 1152 for (size_t i = 0; i < children.size(); ++i) { |
1149 RenderBox* child = children[i]; | 1153 RenderBox* child = children[i]; |
| 1154 LayoutRectRecorder recorder(*child); |
| 1155 |
1150 if (child->isOutOfFlowPositioned()) { | 1156 if (child->isOutOfFlowPositioned()) { |
1151 child->layer()->setStaticBlockPosition(mainAxisOffset); | 1157 child->layer()->setStaticBlockPosition(mainAxisOffset); |
1152 continue; | 1158 continue; |
1153 } | 1159 } |
1154 mainAxisOffset -= mainAxisExtentForChild(child) + flowAwareMarginEndForC
hild(child); | 1160 mainAxisOffset -= mainAxisExtentForChild(child) + flowAwareMarginEndForC
hild(child); |
1155 | 1161 |
1156 setFlowAwareLocationForChild(child, LayoutPoint(mainAxisOffset, crossAxi
sOffset + flowAwareMarginBeforeForChild(child))); | 1162 setFlowAwareLocationForChild(child, LayoutPoint(mainAxisOffset, crossAxi
sOffset + flowAwareMarginBeforeForChild(child))); |
1157 | 1163 |
1158 mainAxisOffset -= flowAwareMarginStartForChild(child); | 1164 mainAxisOffset -= flowAwareMarginStartForChild(child); |
1159 | 1165 |
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1356 ASSERT(child); | 1362 ASSERT(child); |
1357 LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisE
xtent; | 1363 LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisE
xtent; |
1358 LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset
- crossAxisStartEdge; | 1364 LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset
- crossAxisStartEdge; |
1359 LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxi
sExtent; | 1365 LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxi
sExtent; |
1360 adjustAlignmentForChild(child, newOffset - originalOffset); | 1366 adjustAlignmentForChild(child, newOffset - originalOffset); |
1361 } | 1367 } |
1362 } | 1368 } |
1363 } | 1369 } |
1364 | 1370 |
1365 } | 1371 } |
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