Move rendering/RenderGrid to layout/LayoutGrid

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
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * 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/layout/OrderIterator.h"
-#include "core/layout/style/GridResolvedPosition.h"
-#include "core/rendering/RenderBlock.h"
-
-namespace blink {
-
-struct GridCoordinate;
-struct GridSpan;
-class GridTrack;
-class GridItemWithSpan;
-
-class RenderGrid final : public RenderBlock {
-public:
-    RenderGrid(Element*);
-    virtual ~RenderGrid();
-
-    virtual const char* renderName() const override;
-
-    virtual void layoutBlock(bool relayoutChildren) override;
-
-    virtual bool canCollapseAnonymousBlockChild() const override { return false; }
-
-    void dirtyGrid();
-
-    const Vector<LayoutUnit>& columnPositions() const { return m_columnPositions; }
-    const Vector<LayoutUnit>& rowPositions() const { return m_rowPositions; }
-
-    typedef Vector<LayoutBox*, 1> GridCell;
-    const GridCell& gridCell(int row, int column) { return m_grid[row][column]; }
-    const Vector<LayoutBox*>& itemsOverflowingGridArea() { return m_gridItemsOverflowingGridArea; }
-    int paintIndexForGridItem(const LayoutBox* layoutBox) { return m_gridItemsIndexesMap.get(layoutBox); }
-
-    bool gridIsDirty() const { return m_gridIsDirty; }
-
-    typedef void (GridTrack::* AccumulatorGrowFunction)(LayoutUnit);
-private:
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectRenderGrid || RenderBlock::isOfType(type); }
-    virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
-    virtual void computePreferredLogicalWidths() override;
-
-    virtual void addChild(LayoutObject* newChild, LayoutObject* beforeChild = 0) override;
-    virtual void removeChild(LayoutObject*) override;
-
-    virtual void styleDidChange(StyleDifference, const LayoutStyle*) override;
-
-    bool explicitGridDidResize(const LayoutStyle&) const;
-    bool namedGridLinesDefinitionDidChange(const LayoutStyle&) const;
-
-    class GridIterator;
-    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 ensureGridSize(size_t maximumRowIndex, size_t maximumColumnIndex);
-    void insertItemIntoGrid(LayoutBox&, const GridCoordinate&);
-    void placeItemsOnGrid();
-    void populateExplicitGridAndOrderIterator();
-    PassOwnPtr<GridCoordinate> createEmptyGridAreaAtSpecifiedPositionsOutsideGrid(const LayoutBox&, GridTrackSizingDirection, const GridSpan& specifiedPositions) const;
-    void placeSpecifiedMajorAxisItemsOnGrid(const Vector<LayoutBox*>&);
-    void placeAutoMajorAxisItemsOnGrid(const Vector<LayoutBox*>&);
-    void placeAutoMajorAxisItemOnGrid(LayoutBox&, std::pair<size_t, size_t>& autoPlacementCursor);
-    GridTrackSizingDirection autoPlacementMajorAxisDirection() const;
-    GridTrackSizingDirection autoPlacementMinorAxisDirection() const;
-
-    void layoutGridItems();
-    void layoutPositionedObjects(bool relayoutChildren, PositionedLayoutBehavior = DefaultLayout);
-    void offsetAndBreadthForPositionedChild(const LayoutBox&, GridTrackSizingDirection, bool startIsAuto, bool endIsAuto, LayoutUnit& offset, LayoutUnit& breadth);
-    void populateGridPositions(const GridSizingData&, LayoutUnit availableSpaceForColumns, LayoutUnit availableSpaceForRows);
-
-    typedef LayoutUnit (RenderGrid::* SizingFunction)(LayoutBox&, GridTrackSizingDirection, Vector<GridTrack>&);
-    typedef const LayoutUnit& (GridTrack::* AccumulatorGetter)() const;
-    typedef bool (GridTrackSize::* FilterFunction)() const;
-    void resolveContentBasedTrackSizingFunctionsForNonSpanningItems(GridTrackSizingDirection, const GridCoordinate&, LayoutBox& gridItem, GridTrack&, Vector<GridTrack>& columnTracks);
-    void resolveContentBasedTrackSizingFunctionsForItems(GridTrackSizingDirection, GridSizingData&, GridItemWithSpan&, FilterFunction, SizingFunction, AccumulatorGetter, AccumulatorGrowFunction, FilterFunction growAboveMaxBreadthFilterFunction = nullptr);
-    void distributeSpaceToTracks(Vector<GridTrack*>&, const Vector<GridTrack*>* growBeyondGrowthLimitsTracks, AccumulatorGetter, AccumulatorGrowFunction, GridSizingData&, LayoutUnit& availableLogicalSpace);
-
-    double computeNormalizedFractionBreadth(Vector<GridTrack>&, const GridSpan& tracksSpan, GridTrackSizingDirection, LayoutUnit availableLogicalSpace) const;
-
-    GridTrackSize gridTrackSize(GridTrackSizingDirection, size_t) const;
-
-    LayoutUnit logicalHeightForChild(LayoutBox&, Vector<GridTrack>&);
-    LayoutUnit minContentForChild(LayoutBox&, GridTrackSizingDirection, Vector<GridTrack>& columnTracks);
-    LayoutUnit maxContentForChild(LayoutBox&, GridTrackSizingDirection, Vector<GridTrack>& columnTracks);
-    LayoutUnit startOfColumnForChild(const LayoutBox& child) const;
-    LayoutUnit endOfColumnForChild(const LayoutBox& child) const;
-    LayoutUnit columnPositionLeft(const LayoutBox&) const;
-    LayoutUnit columnPositionRight(const LayoutBox&) const;
-    LayoutUnit centeredColumnPositionForChild(const LayoutBox&) const;
-    LayoutUnit columnPositionForChild(const LayoutBox&) const;
-    LayoutUnit startOfRowForChild(const LayoutBox& child) const;
-    LayoutUnit endOfRowForChild(const LayoutBox& child) const;
-    LayoutUnit centeredRowPositionForChild(const LayoutBox&) const;
-    LayoutUnit rowPositionForChild(const LayoutBox&) const;
-    LayoutUnit contentPositionAndDistributionColumnOffset(LayoutUnit availableFreeSpace, ContentPosition, ContentDistributionType, OverflowAlignment, unsigned numberOfItems) const;
-    LayoutUnit contentPositionAndDistributionRowOffset(LayoutUnit availableFreeSpace, ContentPosition, ContentDistributionType, OverflowAlignment, unsigned numberOfItems) const;
-    LayoutPoint findChildLogicalPosition(const LayoutBox&, LayoutSize contentAlignmentOffset) const;
-    GridCoordinate cachedGridCoordinate(const LayoutBox&) const;
-
-    LayoutUnit gridAreaBreadthForChild(const LayoutBox& child, GridTrackSizingDirection, const Vector<GridTrack>&) const;
-
-    virtual void paintChildren(const PaintInfo&, const LayoutPoint&) override;
-    bool allowedToStretchLogicalHeightForChild(const LayoutBox& child) const;
-    bool needToStretchChildLogicalHeight(const LayoutBox&) const;
-    LayoutUnit childIntrinsicHeight(const LayoutBox&) const;
-    LayoutUnit childIntrinsicWidth(const LayoutBox&) const;
-    LayoutUnit intrinsicLogicalHeightForChild(const LayoutBox&) const;
-    LayoutUnit marginLogicalHeightForChild(const LayoutBox&) const;
-    LayoutUnit computeMarginLogicalHeightForChild(const LayoutBox&) const;
-    LayoutUnit availableAlignmentSpaceForChildBeforeStretching(LayoutUnit gridAreaBreadthForChild, const LayoutBox&) const;
-    void applyStretchAlignmentToChildIfNeeded(LayoutBox&, LayoutUnit gridAreaBreadthForChild);
-
-#if ENABLE(ASSERT)
-    bool tracksAreWiderThanMinTrackBreadth(GridTrackSizingDirection, const Vector<GridTrack>&);
-#endif
-
-    size_t gridItemSpan(const LayoutBox&, GridTrackSizingDirection);
-    bool spanningItemCrossesFlexibleSizedTracks(const GridCoordinate&, GridTrackSizingDirection) const;
-
-    size_t gridColumnCount() const
-    {
-        ASSERT(!gridIsDirty());
-        return m_grid[0].size();
-    }
-    size_t gridRowCount() const
-    {
-        ASSERT(!gridIsDirty());
-        return m_grid.size();
-    }
-
-    bool hasDefiniteLogicalSize(GridTrackSizingDirection) const;
-
-    typedef Vector<Vector<GridCell> > GridRepresentation;
-    GridRepresentation m_grid;
-    bool m_gridIsDirty;
-    Vector<LayoutUnit> m_rowPositions;
-    Vector<LayoutUnit> m_columnPositions;
-    HashMap<const LayoutBox*, GridCoordinate> m_gridItemCoordinate;
-    OrderIterator m_orderIterator;
-    Vector<LayoutBox*> m_gridItemsOverflowingGridArea;
-    HashMap<const LayoutBox*, size_t> m_gridItemsIndexesMap;
-};
-
-DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderGrid, isRenderGrid());
-
-} // namespace blink
-
-#endif // RenderGrid_h