[CSS Grid Layout] Introduce an explicit type for resolved grid positions

Source/core/rendering/RenderGrid.h

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef RenderGrid_h
 #define RenderGrid_h
 
 #include "core/rendering/OrderIterator.h"
 #include "core/rendering/RenderBlock.h"
+#include "core/rendering/style/GridResolvedPosition.h"
 
 namespace WebCore {
 
 struct GridCoordinate;
 struct GridSpan;
 class GridTrack;
 
-enum GridTrackSizingDirection {
-    ForColumns,
-    ForRows
-};
-
 class RenderGrid FINAL : public RenderBlock {
 public:
     RenderGrid(Element*);
     virtual ~RenderGrid();
 
     virtual const char* renderName() const OVERRIDE;
 
     virtual void layoutBlock(bool relayoutChildren) OVERRIDE;
 
     virtual bool avoidsFloats() const OVERRIDE { return true; }
@@ skipping 21 matching lines @@
     struct GridSizingData;
     bool gridElementIsShrinkToFit();
     void computeUsedBreadthOfGridTracks(GridTrackSizingDirection, GridSizingData&);
     void computeUsedBreadthOfGridTracks(GridTrackSizingDirection, GridSizingData&, LayoutUnit& availableLogicalSpace);
     LayoutUnit computeUsedBreadthOfMinLength(GridTrackSizingDirection, const GridLength&) const;
     LayoutUnit computeUsedBreadthOfMaxLength(GridTrackSizingDirection, const GridLength&, LayoutUnit usedBreadth) const;
     LayoutUnit computeUsedBreadthOfSpecifiedLength(GridTrackSizingDirection, const Length&) const;
     void resolveContentBasedTrackSizingFunctions(GridTrackSizingDirection, GridSizingData&, LayoutUnit& availableLogicalSpace);
 
     void growGrid(GridTrackSizingDirection, size_t maximumPosition);
-    void insertItemIntoGrid(RenderBox*, size_t rowTrack, size_t columnTrack);
+    void insertItemIntoGrid(RenderBox*, const GridResolvedPosition& rowTrack, const GridResolvedPosition& columnTrack);
     void insertItemIntoGrid(RenderBox*, const GridCoordinate&);
     void placeItemsOnGrid();
     void populateExplicitGridAndOrderIterator();
     void placeSpecifiedMajorAxisItemsOnGrid(const Vector<RenderBox*>&);
     void placeAutoMajorAxisItemsOnGrid(const Vector<RenderBox*>&);
     void placeAutoMajorAxisItemOnGrid(RenderBox*);
     GridTrackSizingDirection autoPlacementMajorAxisDirection() const;
     GridTrackSizingDirection autoPlacementMinorAxisDirection() const;
 
     void layoutGridItems();
     void populateGridPositions(const GridSizingData&);
 
     typedef LayoutUnit (RenderGrid::* SizingFunction)(RenderBox*, GridTrackSizingDirection, Vector<GridTrack>&);
     typedef LayoutUnit (GridTrack::* AccumulatorGetter)() const;
     typedef void (GridTrack::* AccumulatorGrowFunction)(LayoutUnit);
     typedef bool (GridTrackSize::* FilterFunction)() const;
     void resolveContentBasedTrackSizingFunctionsForItems(GridTrackSizingDirection, GridSizingData&, RenderBox*, FilterFunction, SizingFunction, AccumulatorGetter, AccumulatorGrowFunction);
     void distributeSpaceToTracks(Vector<GridTrack*>&, Vector<GridTrack*>* tracksForGrowthAboveMaxBreadth, AccumulatorGetter, AccumulatorGrowFunction, GridSizingData&, LayoutUnit& availableLogicalSpace);
 
     double computeNormalizedFractionBreadth(Vector<GridTrack>&, const GridSpan& tracksSpan, GridTrackSizingDirection, LayoutUnit availableLogicalSpace) const;
 
     const GridTrackSize& gridTrackSize(GridTrackSizingDirection, size_t) const;
-    size_t explicitGridColumnCount() const;
-    size_t explicitGridRowCount() const;
-    size_t explicitGridSizeForSide(GridPositionSide) const;
 
     LayoutUnit logicalContentHeightForChild(RenderBox*, Vector<GridTrack>&);
     LayoutUnit minContentForChild(RenderBox*, GridTrackSizingDirection, Vector<GridTrack>& columnTracks);
     LayoutUnit maxContentForChild(RenderBox*, GridTrackSizingDirection, Vector<GridTrack>& columnTracks);
     LayoutUnit startOfColumnForChild(const RenderBox* child) const;
     LayoutUnit endOfColumnForChild(const RenderBox* child) const;
     LayoutUnit columnPositionAlignedWithGridContainerStart(const RenderBox*) const;
     LayoutUnit columnPositionAlignedWithGridContainerEnd(const RenderBox*) const;
     LayoutUnit centeredColumnPositionForChild(const RenderBox*) const;
     LayoutUnit columnPositionForChild(const RenderBox*) const;
     LayoutUnit rowPositionForChild(const RenderBox*) const;
     LayoutPoint findChildLogicalPosition(const RenderBox*) const;
     GridCoordinate cachedGridCoordinate(const RenderBox*) const;
 
-    GridSpan resolveGridPositionsFromAutoPlacementPosition(const RenderBox*, GridTrackSizingDirection, size_t) const;
-    PassOwnPtr<GridSpan> resolveGridPositionsFromStyle(const RenderBox*, GridTrackSizingDirection) const;
-    size_t resolveNamedGridLinePositionFromStyle(const GridPosition&, GridPositionSide) const;
-    size_t resolveGridPositionFromStyle(const GridPosition&, GridPositionSide) const;
-    PassOwnPtr<GridSpan> resolveGridPositionAgainstOppositePosition(size_t resolvedOppositePosition, const GridPosition&, GridPositionSide) const;
-    PassOwnPtr<GridSpan> resolveNamedGridLinePositionAgainstOppositePosition(size_t resolvedOppositePosition, const GridPosition&, GridPositionSide) const;
-    PassOwnPtr<GridSpan> resolveBeforeStartNamedGridLinePositionAgainstOppositePosition(size_t resolvedOppositePosition, const GridPosition&, const Vector<size_t>&) const;
-    PassOwnPtr<GridSpan> resolveAfterEndNamedGridLinePositionAgainstOppositePosition(size_t resolvedOppositePosition, const GridPosition&, const Vector<size_t>&) const;
-
     LayoutUnit gridAreaBreadthForChild(const RenderBox* child, GridTrackSizingDirection, const Vector<GridTrack>&) const;
 
     virtual void paintChildren(PaintInfo&, const LayoutPoint&) OVERRIDE;
 
     bool gridIsDirty() const { return m_gridIsDirty; }
 
 #ifndef NDEBUG
     bool tracksAreWiderThanMinTrackBreadth(GridTrackSizingDirection, const Vector<GridTrack>&);
 #endif
 
@@ skipping 19 matching lines @@
     Vector<RenderBox*> m_gridItemsOverflowingGridArea;
 
     friend class GridCoordinateSorter;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderGrid, isRenderGrid());
 
 } // namespace WebCore
 
 #endif // RenderGrid_h