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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef GridTrackSizingAlgorithm_h | 5 #ifndef GridTrackSizingAlgorithm_h |
6 #define GridTrackSizingAlgorithm_h | 6 #define GridTrackSizingAlgorithm_h |
7 | 7 |
| 8 #include <memory> |
| 9 #include "core/layout/LayoutBox.h" |
8 #include "core/style/GridPositionsResolver.h" | 10 #include "core/style/GridPositionsResolver.h" |
9 #include "core/style/GridTrackSize.h" | 11 #include "core/style/GridTrackSize.h" |
10 #include "platform/LayoutUnit.h" | 12 #include "platform/LayoutUnit.h" |
11 #include "wtf/HashSet.h" | 13 #include "wtf/HashSet.h" |
12 #include "wtf/Optional.h" | 14 #include "wtf/Optional.h" |
13 #include <memory> | |
14 | 15 |
15 namespace blink { | 16 namespace blink { |
16 | 17 |
17 static const int infinity = -1; | 18 static const int infinity = -1; |
18 | 19 |
19 class Grid; | 20 class Grid; |
20 class GridTrackSizingAlgorithmStrategy; | 21 class GridTrackSizingAlgorithmStrategy; |
21 class LayoutGrid; | 22 class LayoutGrid; |
22 | 23 |
| 24 enum MarginDirection; |
| 25 |
23 enum SizingOperation { TrackSizing, IntrinsicSizeComputation }; | 26 enum SizingOperation { TrackSizing, IntrinsicSizeComputation }; |
24 | 27 |
25 enum TrackSizeComputationPhase { | 28 enum TrackSizeComputationPhase { |
26 ResolveIntrinsicMinimums, | 29 ResolveIntrinsicMinimums, |
27 ResolveContentBasedMinimums, | 30 ResolveContentBasedMinimums, |
28 ResolveMaxContentMinimums, | 31 ResolveMaxContentMinimums, |
29 ResolveIntrinsicMaximums, | 32 ResolveIntrinsicMaximums, |
30 ResolveMaxContentMaximums, | 33 ResolveMaxContentMaximums, |
31 MaximizeTracks, | 34 MaximizeTracks, |
32 }; | 35 }; |
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261 LayoutBox&, | 264 LayoutBox&, |
262 GridTrackSizingDirection) const; | 265 GridTrackSizingDirection) const; |
263 LayoutUnit computeTrackBasedSize() const; | 266 LayoutUnit computeTrackBasedSize() const; |
264 GridTrackSizingDirection direction() const { return m_algorithm.m_direction; } | 267 GridTrackSizingDirection direction() const { return m_algorithm.m_direction; } |
265 double findFrUnitSize(const GridSpan& tracksSpan, | 268 double findFrUnitSize(const GridSpan& tracksSpan, |
266 LayoutUnit leftOverSpace) const; | 269 LayoutUnit leftOverSpace) const; |
267 void distributeSpaceToTracks(Vector<GridTrack*>& tracks, | 270 void distributeSpaceToTracks(Vector<GridTrack*>& tracks, |
268 LayoutUnit& availableLogicalSpace) const; | 271 LayoutUnit& availableLogicalSpace) const; |
269 const LayoutGrid* layoutGrid() const { return m_algorithm.m_layoutGrid; } | 272 const LayoutGrid* layoutGrid() const { return m_algorithm.m_layoutGrid; } |
270 | 273 |
| 274 // Helper functions |
| 275 static LayoutUnit computeMarginLogicalSizeForChild( |
| 276 MarginDirection forDirection, |
| 277 const LayoutGrid*, |
| 278 const LayoutBox& child); |
| 279 static bool hasOverrideContainingBlockContentSizeForChild( |
| 280 const LayoutBox& child, |
| 281 GridTrackSizingDirection); |
| 282 static LayoutUnit overrideContainingBlockContentSizeForChild( |
| 283 const LayoutBox& child, |
| 284 GridTrackSizingDirection); |
| 285 static bool shouldClearOverrideContainingBlockContentSizeForChild( |
| 286 const LayoutBox& child, |
| 287 GridTrackSizingDirection); |
| 288 static void setOverrideContainingBlockContentSizeForChild( |
| 289 LayoutBox& child, |
| 290 GridTrackSizingDirection, |
| 291 LayoutUnit size); |
| 292 static GridTrackSizingDirection flowAwareDirectionForChild( |
| 293 const LayoutGrid*, |
| 294 const LayoutBox& child, |
| 295 GridTrackSizingDirection); |
| 296 |
271 GridTrackSizingAlgorithm& m_algorithm; | 297 GridTrackSizingAlgorithm& m_algorithm; |
272 }; | 298 }; |
273 } | 299 } |
274 | 300 |
275 #endif // GridTrackSizingAlgorithm_h | 301 #endif // GridTrackSizingAlgorithm_h |
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