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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/203220">203220</a></dd>
<dt>Author</dt> <dd>svillar@igalia.com</dd>
<dt>Date</dt> <dd>2016-07-14 01:36:10 -0700 (Thu, 14 Jul 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>[css-grid] Const-ify track sizing algorithm
https://bugs.webkit.org/show_bug.cgi?id=159716
Reviewed by Carlos Garcia Campos.
All the methods used to run the track sizing algorithm should not
modify the state of LayoutGrid. We can safely const-ify all of them
and remove the ugly const_cast in computeIntrinsicLogicalWidths().
No new tests needed as there is no change in behavior.
* rendering/RenderGrid.cpp:
(WebCore::RenderGrid::logicalHeightForChild):
(WebCore::RenderGrid::minSizeForChild):
(WebCore::RenderGrid::updateOverrideContainingBlockContentLogicalWidthForChild):
(WebCore::RenderGrid::minContentForChild):
(WebCore::RenderGrid::maxContentForChild):
(WebCore::RenderGrid::resolveContentBasedTrackSizingFunctions):
(WebCore::RenderGrid::resolveContentBasedTrackSizingFunctionsForNonSpanningItems):
(WebCore::RenderGrid::currentItemSizeForTrackSizeComputationPhase):
(WebCore::RenderGrid::resolveContentBasedTrackSizingFunctionsForItems):
(WebCore::RenderGrid::distributeSpaceToTracks):
* rendering/RenderGrid.h:</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderGridcpp">trunk/Source/WebCore/rendering/RenderGrid.cpp</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderGridh">trunk/Source/WebCore/rendering/RenderGrid.h</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (203219 => 203220)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2016-07-14 07:54:21 UTC (rev 203219)
+++ trunk/Source/WebCore/ChangeLog 2016-07-14 08:36:10 UTC (rev 203220)
</span><span class="lines">@@ -1,3 +1,29 @@
</span><ins>+2016-07-14 Sergio Villar Senin <svillar@igalia.com>
+
+ [css-grid] Const-ify track sizing algorithm
+ https://bugs.webkit.org/show_bug.cgi?id=159716
+
+ Reviewed by Carlos Garcia Campos.
+
+ All the methods used to run the track sizing algorithm should not
+ modify the state of LayoutGrid. We can safely const-ify all of them
+ and remove the ugly const_cast in computeIntrinsicLogicalWidths().
+
+ No new tests needed as there is no change in behavior.
+
+ * rendering/RenderGrid.cpp:
+ (WebCore::RenderGrid::logicalHeightForChild):
+ (WebCore::RenderGrid::minSizeForChild):
+ (WebCore::RenderGrid::updateOverrideContainingBlockContentLogicalWidthForChild):
+ (WebCore::RenderGrid::minContentForChild):
+ (WebCore::RenderGrid::maxContentForChild):
+ (WebCore::RenderGrid::resolveContentBasedTrackSizingFunctions):
+ (WebCore::RenderGrid::resolveContentBasedTrackSizingFunctionsForNonSpanningItems):
+ (WebCore::RenderGrid::currentItemSizeForTrackSizeComputationPhase):
+ (WebCore::RenderGrid::resolveContentBasedTrackSizingFunctionsForItems):
+ (WebCore::RenderGrid::distributeSpaceToTracks):
+ * rendering/RenderGrid.h:
+
</ins><span class="cx"> 2016-07-14 Jer Noble <jer.noble@apple.com>
</span><span class="cx">
</span><span class="cx"> REGRESSION (r202918): LayoutTest media/video-main-content-allow-then-deny.html is flaky, failing almost every time on El Capitan
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderGridcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderGrid.cpp (203219 => 203220)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderGrid.cpp 2016-07-14 07:54:21 UTC (rev 203219)
+++ trunk/Source/WebCore/rendering/RenderGrid.cpp 2016-07-14 08:36:10 UTC (rev 203220)
</span><span class="lines">@@ -465,7 +465,7 @@
</span><span class="cx"> GridSizingData sizingData(gridColumnCount(), gridRowCount());
</span><span class="cx"> sizingData.setFreeSpaceForDirection(ForColumns, Nullopt);
</span><span class="cx"> sizingData.sizingOperation = IntrinsicSizeComputation;
</span><del>- const_cast<RenderGrid*>(this)->computeUsedBreadthOfGridTracks(ForColumns, sizingData, minLogicalWidth, maxLogicalWidth);
</del><ins>+ computeUsedBreadthOfGridTracks(ForColumns, sizingData, minLogicalWidth, maxLogicalWidth);
</ins><span class="cx">
</span><span class="cx"> LayoutUnit totalGuttersSize = guttersSize(ForColumns, sizingData.columnTracks.size());
</span><span class="cx"> minLogicalWidth += totalGuttersSize;
</span><span class="lines">@@ -530,7 +530,7 @@
</span><span class="cx"> return track.baseSize() / std::max<double>(1, flexFactor);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void RenderGrid::computeUsedBreadthOfGridTracks(GridTrackSizingDirection direction, GridSizingData& sizingData, LayoutUnit& baseSizesWithoutMaximization, LayoutUnit& growthLimitsWithoutMaximization)
</del><ins>+void RenderGrid::computeUsedBreadthOfGridTracks(GridTrackSizingDirection direction, GridSizingData& sizingData, LayoutUnit& baseSizesWithoutMaximization, LayoutUnit& growthLimitsWithoutMaximization) const
</ins><span class="cx"> {
</span><span class="cx"> const Optional<LayoutUnit> initialFreeSpace = sizingData.freeSpaceForDirection(direction);
</span><span class="cx"> Vector<GridTrack>& tracks = (direction == ForColumns) ? sizingData.columnTracks : sizingData.rowTracks;
</span><span class="lines">@@ -777,7 +777,7 @@
</span><span class="cx"> return GridTrackSize(minTrackBreadth, maxTrackBreadth);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-LayoutUnit RenderGrid::logicalHeightForChild(RenderBox& child, GridSizingData& sizingData)
</del><ins>+LayoutUnit RenderGrid::logicalHeightForChild(RenderBox& child, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> Optional<LayoutUnit> oldOverrideContainingBlockContentLogicalWidth = child.hasOverrideContainingBlockLogicalWidth() ? child.overrideContainingBlockContentLogicalWidth() : LayoutUnit();
</span><span class="cx"> LayoutUnit overrideContainingBlockContentLogicalWidth = gridAreaBreadthForChild(child, ForColumns, sizingData.columnTracks);
</span><span class="lines">@@ -797,7 +797,7 @@
</span><span class="cx"> return child.logicalHeight() + child.marginLogicalHeight();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-LayoutUnit RenderGrid::minSizeForChild(RenderBox& child, GridTrackSizingDirection direction, GridSizingData& sizingData)
</del><ins>+LayoutUnit RenderGrid::minSizeForChild(RenderBox& child, GridTrackSizingDirection direction, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> bool hasOrthogonalWritingMode = child.isHorizontalWritingMode() != isHorizontalWritingMode();
</span><span class="cx"> // FIXME: Properly support orthogonal writing mode.
</span><span class="lines">@@ -822,7 +822,7 @@
</span><span class="cx"> return child.computeLogicalHeightUsing(MinSize, childMinSize, Nullopt).valueOr(0) + child.marginLogicalHeight() + child.scrollbarLogicalHeight();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-bool RenderGrid::updateOverrideContainingBlockContentLogicalWidthForChild(RenderBox& child, GridSizingData& sizingData)
</del><ins>+bool RenderGrid::updateOverrideContainingBlockContentLogicalWidthForChild(RenderBox& child, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> LayoutUnit overrideWidth = gridAreaBreadthForChild(child, ForColumns, sizingData.columnTracks);
</span><span class="cx"> if (child.hasOverrideContainingBlockLogicalWidth() && child.overrideContainingBlockContentLogicalWidth() == overrideWidth)
</span><span class="lines">@@ -832,7 +832,7 @@
</span><span class="cx"> return true;
</span><span class="cx"> }
</span><span class="cx">
</span><del>-LayoutUnit RenderGrid::minContentForChild(RenderBox& child, GridTrackSizingDirection direction, GridSizingData& sizingData)
</del><ins>+LayoutUnit RenderGrid::minContentForChild(RenderBox& child, GridTrackSizingDirection direction, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> bool hasOrthogonalWritingMode = child.isHorizontalWritingMode() != isHorizontalWritingMode();
</span><span class="cx"> // FIXME: Properly support orthogonal writing mode.
</span><span class="lines">@@ -855,7 +855,7 @@
</span><span class="cx"> return logicalHeightForChild(child, sizingData);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-LayoutUnit RenderGrid::maxContentForChild(RenderBox& child, GridTrackSizingDirection direction, GridSizingData& sizingData)
</del><ins>+LayoutUnit RenderGrid::maxContentForChild(RenderBox& child, GridTrackSizingDirection direction, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> bool hasOrthogonalWritingMode = child.isHorizontalWritingMode() != isHorizontalWritingMode();
</span><span class="cx"> // FIXME: Properly support orthogonal writing mode.
</span><span class="lines">@@ -915,7 +915,7 @@
</span><span class="cx"> Vector<GridItemWithSpan>::iterator rangeEnd;
</span><span class="cx"> };
</span><span class="cx">
</span><del>-void RenderGrid::resolveContentBasedTrackSizingFunctions(GridTrackSizingDirection direction, GridSizingData& sizingData)
</del><ins>+void RenderGrid::resolveContentBasedTrackSizingFunctions(GridTrackSizingDirection direction, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> sizingData.itemsSortedByIncreasingSpan.shrink(0);
</span><span class="cx"> HashSet<RenderBox*> itemsSet;
</span><span class="lines">@@ -956,7 +956,7 @@
</span><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void RenderGrid::resolveContentBasedTrackSizingFunctionsForNonSpanningItems(GridTrackSizingDirection direction, const GridSpan& span, RenderBox& gridItem, GridTrack& track, GridSizingData& sizingData)
</del><ins>+void RenderGrid::resolveContentBasedTrackSizingFunctionsForNonSpanningItems(GridTrackSizingDirection direction, const GridSpan& span, RenderBox& gridItem, GridTrack& track, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> unsigned trackPosition = span.startLine();
</span><span class="cx"> GridTrackSize trackSize = gridTrackSize(direction, trackPosition, sizingData.sizingOperation);
</span><span class="lines">@@ -1076,7 +1076,7 @@
</span><span class="cx"> ASSERT_NOT_REACHED();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-LayoutUnit RenderGrid::currentItemSizeForTrackSizeComputationPhase(TrackSizeComputationPhase phase, RenderBox& gridItem, GridTrackSizingDirection direction, GridSizingData& sizingData)
</del><ins>+LayoutUnit RenderGrid::currentItemSizeForTrackSizeComputationPhase(TrackSizeComputationPhase phase, RenderBox& gridItem, GridTrackSizingDirection direction, GridSizingData& sizingData) const
</ins><span class="cx"> {
</span><span class="cx"> switch (phase) {
</span><span class="cx"> case ResolveIntrinsicMinimums:
</span><span class="lines">@@ -1097,7 +1097,7 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> template <RenderGrid::TrackSizeComputationPhase phase>
</span><del>-void RenderGrid::resolveContentBasedTrackSizingFunctionsForItems(GridTrackSizingDirection direction, GridSizingData& sizingData, const GridItemsSpanGroupRange& gridItemsWithSpan)
</del><ins>+void RenderGrid::resolveContentBasedTrackSizingFunctionsForItems(GridTrackSizingDirection direction, GridSizingData& sizingData, const GridItemsSpanGroupRange& gridItemsWithSpan) const
</ins><span class="cx"> {
</span><span class="cx"> Vector<GridTrack>& tracks = (direction == ForColumns) ? sizingData.columnTracks : sizingData.rowTracks;
</span><span class="cx"> for (const auto& trackIndex : sizingData.contentSizedTracksIndex) {
</span><span class="lines">@@ -1158,7 +1158,7 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> template <RenderGrid::TrackSizeComputationPhase phase>
</span><del>-void RenderGrid::distributeSpaceToTracks(Vector<GridTrack*>& tracks, const Vector<GridTrack*>* growBeyondGrowthLimitsTracks, LayoutUnit& freeSpace)
</del><ins>+void RenderGrid::distributeSpaceToTracks(Vector<GridTrack*>& tracks, const Vector<GridTrack*>* growBeyondGrowthLimitsTracks, LayoutUnit& freeSpace) const
</ins><span class="cx"> {
</span><span class="cx"> ASSERT(freeSpace >= 0);
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderGridh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderGrid.h (203219 => 203220)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderGrid.h 2016-07-14 07:54:21 UTC (rev 203219)
+++ trunk/Source/WebCore/rendering/RenderGrid.h 2016-07-14 08:36:10 UTC (rev 203220)
</span><span class="lines">@@ -75,10 +75,10 @@
</span><span class="cx"> class GridIterator;
</span><span class="cx"> class GridSizingData;
</span><span class="cx"> enum SizingOperation { TrackSizing, IntrinsicSizeComputation };
</span><del>- void computeUsedBreadthOfGridTracks(GridTrackSizingDirection, GridSizingData&, LayoutUnit& baseSizesWithoutMaximization, LayoutUnit& growthLimitsWithoutMaximization);
</del><ins>+ void computeUsedBreadthOfGridTracks(GridTrackSizingDirection, GridSizingData&, LayoutUnit& baseSizesWithoutMaximization, LayoutUnit& growthLimitsWithoutMaximization) const;
</ins><span class="cx"> LayoutUnit computeUsedBreadthOfMinLength(const GridLength&, LayoutUnit maxSize) const;
</span><span class="cx"> LayoutUnit computeUsedBreadthOfMaxLength(const GridLength&, LayoutUnit usedBreadth, LayoutUnit maxSize) const;
</span><del>- void resolveContentBasedTrackSizingFunctions(GridTrackSizingDirection, GridSizingData&);
</del><ins>+ void resolveContentBasedTrackSizingFunctions(GridTrackSizingDirection, GridSizingData&) const;
</ins><span class="cx">
</span><span class="cx"> void ensureGridSize(unsigned maximumRowSize, unsigned maximumColumnSize);
</span><span class="cx"> void insertItemIntoGrid(RenderBox&, const GridArea&);
</span><span class="lines">@@ -124,12 +124,12 @@
</span><span class="cx"> static bool trackShouldGrowBeyondGrowthLimitsForTrackSizeComputationPhase(TrackSizeComputationPhase, const GridTrackSize&);
</span><span class="cx"> static void markAsInfinitelyGrowableForTrackSizeComputationPhase(TrackSizeComputationPhase, GridTrack&);
</span><span class="cx"> static void updateTrackSizeForTrackSizeComputationPhase(TrackSizeComputationPhase, GridTrack&);
</span><del>- LayoutUnit currentItemSizeForTrackSizeComputationPhase(TrackSizeComputationPhase, RenderBox&, GridTrackSizingDirection, GridSizingData&);
</del><ins>+ LayoutUnit currentItemSizeForTrackSizeComputationPhase(TrackSizeComputationPhase, RenderBox&, GridTrackSizingDirection, GridSizingData&) const;
</ins><span class="cx">
</span><span class="cx"> typedef struct GridItemsSpanGroupRange GridItemsSpanGroupRange;
</span><del>- void resolveContentBasedTrackSizingFunctionsForNonSpanningItems(GridTrackSizingDirection, const GridSpan&, RenderBox& gridItem, GridTrack&, GridSizingData&);
- template <TrackSizeComputationPhase> void resolveContentBasedTrackSizingFunctionsForItems(GridTrackSizingDirection, GridSizingData&, const GridItemsSpanGroupRange&);
- template <TrackSizeComputationPhase> void distributeSpaceToTracks(Vector<GridTrack*>&, const Vector<GridTrack*>* growBeyondGrowthLimitsTracks, LayoutUnit& availableLogicalSpace);
</del><ins>+ void resolveContentBasedTrackSizingFunctionsForNonSpanningItems(GridTrackSizingDirection, const GridSpan&, RenderBox& gridItem, GridTrack&, GridSizingData&) const;
+ template <TrackSizeComputationPhase> void resolveContentBasedTrackSizingFunctionsForItems(GridTrackSizingDirection, GridSizingData&, const GridItemsSpanGroupRange&) const;
+ template <TrackSizeComputationPhase> void distributeSpaceToTracks(Vector<GridTrack*>&, const Vector<GridTrack*>* growBeyondGrowthLimitsTracks, LayoutUnit& availableLogicalSpace) const;
</ins><span class="cx">
</span><span class="cx"> typedef HashSet<unsigned, DefaultHash<unsigned>::Hash, WTF::UnsignedWithZeroKeyHashTraits<unsigned>> TrackIndexSet;
</span><span class="cx"> double computeFlexFactorUnitSize(const Vector<GridTrack>&, GridTrackSizingDirection, SizingOperation, double flexFactorSum, LayoutUnit leftOverSpace, const Vector<unsigned, 8>& flexibleTracksIndexes, std::unique_ptr<TrackIndexSet> tracksToTreatAsInflexible = nullptr) const;
</span><span class="lines">@@ -138,11 +138,11 @@
</span><span class="cx"> const GridTrackSize& rawGridTrackSize(GridTrackSizingDirection, unsigned) const;
</span><span class="cx"> GridTrackSize gridTrackSize(GridTrackSizingDirection, unsigned, SizingOperation) const;
</span><span class="cx">
</span><del>- bool updateOverrideContainingBlockContentLogicalWidthForChild(RenderBox&, GridSizingData&);
- LayoutUnit logicalHeightForChild(RenderBox&, GridSizingData&);
- LayoutUnit minSizeForChild(RenderBox&, GridTrackSizingDirection, GridSizingData&);
- LayoutUnit minContentForChild(RenderBox&, GridTrackSizingDirection, GridSizingData&);
- LayoutUnit maxContentForChild(RenderBox&, GridTrackSizingDirection, GridSizingData&);
</del><ins>+ bool updateOverrideContainingBlockContentLogicalWidthForChild(RenderBox&, GridSizingData&) const;
+ LayoutUnit logicalHeightForChild(RenderBox&, GridSizingData&) const;
+ LayoutUnit minSizeForChild(RenderBox&, GridTrackSizingDirection, GridSizingData&) const;
+ LayoutUnit minContentForChild(RenderBox&, GridTrackSizingDirection, GridSizingData&) const;
+ LayoutUnit maxContentForChild(RenderBox&, GridTrackSizingDirection, GridSizingData&) const;
</ins><span class="cx"> GridAxisPosition columnAxisPositionForChild(const RenderBox&) const;
</span><span class="cx"> GridAxisPosition rowAxisPositionForChild(const RenderBox&) const;
</span><span class="cx"> LayoutUnit columnAxisOffsetForChild(const RenderBox&) const;
</span></span></pre>
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