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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GridPositionsResolver_h
#define GridPositionsResolver_h
#include "core/style/GridPosition.h"
#include "wtf/Allocator.h"
namespace blink {
struct GridSpan;
class LayoutBox;
class ComputedStyle;
enum GridPositionSide {
ColumnStartSide,
ColumnEndSide,
RowStartSide,
RowEndSide
};
enum GridTrackSizingDirection { ForColumns, ForRows };
class NamedLineCollection {
WTF_MAKE_NONCOPYABLE(NamedLineCollection);
public:
NamedLineCollection(const ComputedStyle&,
const String& namedLine,
GridTrackSizingDirection,
size_t lastLine,
size_t autoRepeatTracksCount);
static bool isValidNamedLineOrArea(const String& namedLine,
const ComputedStyle&,
GridPositionSide);
bool hasNamedLines();
size_t firstPosition();
bool contains(size_t line);
private:
size_t find(size_t line);
const Vector<size_t>* m_namedLinesIndexes = nullptr;
const Vector<size_t>* m_autoRepeatNamedLinesIndexes = nullptr;
size_t m_insertionPoint;
size_t m_lastLine;
size_t m_autoRepeatTotalTracks;
size_t m_autoRepeatTrackListLength;
};
// This is a utility class with all the code related to grid items positions
// resolution.
class GridPositionsResolver {
DISALLOW_NEW();
public:
static size_t explicitGridColumnCount(const ComputedStyle&,
size_t autoRepeatColumnsCount);
static size_t explicitGridRowCount(const ComputedStyle&,
size_t autoRepeatRowsCount);
static GridPositionSide initialPositionSide(GridTrackSizingDirection);
static GridPositionSide finalPositionSide(GridTrackSizingDirection);
static size_t spanSizeForAutoPlacedItem(const ComputedStyle&,
const LayoutBox&,
GridTrackSizingDirection);
static GridSpan resolveGridPositionsFromStyle(const ComputedStyle&,
const LayoutBox&,
GridTrackSizingDirection,
size_t autoRepeatTracksCount);
};
} // namespace blink
#endif // GridPositionsResolver_h
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