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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #include "config.h" | 5 #include "config.h" |
6 #include "core/layout/style/GridResolvedPosition.h" | 6 #include "core/layout/style/GridResolvedPosition.h" |
7 | 7 |
| 8 #include "core/layout/LayoutBox.h" |
8 #include "core/layout/style/GridCoordinate.h" | 9 #include "core/layout/style/GridCoordinate.h" |
9 #include "core/rendering/RenderBox.h" | |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
13 static const NamedGridLinesMap& gridLinesForSide(const LayoutStyle& style, GridP
ositionSide side) | 13 static const NamedGridLinesMap& gridLinesForSide(const LayoutStyle& style, GridP
ositionSide side) |
14 { | 14 { |
15 return (side == ColumnStartSide || side == ColumnEndSide) ? style.namedGridC
olumnLines() : style.namedGridRowLines(); | 15 return (side == ColumnStartSide || side == ColumnEndSide) ? style.namedGridC
olumnLines() : style.namedGridRowLines(); |
16 } | 16 } |
17 | 17 |
18 static inline String implicitNamedGridLineForSide(const String& lineName, GridPo
sitionSide side) | 18 static inline String implicitNamedGridLineForSide(const String& lineName, GridPo
sitionSide side) |
19 { | 19 { |
(...skipping 10 matching lines...) Expand all Loading... |
30 static GridPositionSide calculateInitialPositionSide(GridTrackSizingDirection di
rection) | 30 static GridPositionSide calculateInitialPositionSide(GridTrackSizingDirection di
rection) |
31 { | 31 { |
32 return (direction == ForColumns) ? ColumnStartSide : RowStartSide; | 32 return (direction == ForColumns) ? ColumnStartSide : RowStartSide; |
33 } | 33 } |
34 | 34 |
35 static GridPositionSide calculateFinalPositionSide(GridTrackSizingDirection dire
ction) | 35 static GridPositionSide calculateFinalPositionSide(GridTrackSizingDirection dire
ction) |
36 { | 36 { |
37 return (direction == ForColumns) ? ColumnEndSide : RowEndSide; | 37 return (direction == ForColumns) ? ColumnEndSide : RowEndSide; |
38 } | 38 } |
39 | 39 |
40 void GridResolvedPosition::initialAndFinalPositionsFromStyle(const LayoutStyle&
gridContainerStyle, const RenderBox& gridItem, GridTrackSizingDirection directio
n, GridPosition& initialPosition, GridPosition& finalPosition) | 40 void GridResolvedPosition::initialAndFinalPositionsFromStyle(const LayoutStyle&
gridContainerStyle, const LayoutBox& gridItem, GridTrackSizingDirection directio
n, GridPosition& initialPosition, GridPosition& finalPosition) |
41 { | 41 { |
42 initialPosition = (direction == ForColumns) ? gridItem.style()->gridColumnSt
art() : gridItem.style()->gridRowStart(); | 42 initialPosition = (direction == ForColumns) ? gridItem.style()->gridColumnSt
art() : gridItem.style()->gridRowStart(); |
43 finalPosition = (direction == ForColumns) ? gridItem.style()->gridColumnEnd(
) : gridItem.style()->gridRowEnd(); | 43 finalPosition = (direction == ForColumns) ? gridItem.style()->gridColumnEnd(
) : gridItem.style()->gridRowEnd(); |
44 GridPositionSide initialPositionSide = calculateInitialPositionSide(directio
n); | 44 GridPositionSide initialPositionSide = calculateInitialPositionSide(directio
n); |
45 GridPositionSide finalPositionSide = calculateFinalPositionSide(direction); | 45 GridPositionSide finalPositionSide = calculateFinalPositionSide(direction); |
46 | 46 |
47 // We must handle the placement error handling code here instead of in the S
tyleAdjuster because we don't want to | 47 // We must handle the placement error handling code here instead of in the S
tyleAdjuster because we don't want to |
48 // overwrite the specified values. | 48 // overwrite the specified values. |
49 if (initialPosition.isSpan() && finalPosition.isSpan()) | 49 if (initialPosition.isSpan() && finalPosition.isSpan()) |
50 finalPosition.setAutoPosition(); | 50 finalPosition.setAutoPosition(); |
51 | 51 |
52 // Try to early detect the case of non existing named grid lines. This way w
e could assume later that | 52 // Try to early detect the case of non existing named grid lines. This way w
e could assume later that |
53 // GridResolvedPosition::resolveGrisPositionFromStyle() always return a vali
d resolved position. | 53 // GridResolvedPosition::resolveGrisPositionFromStyle() always return a vali
d resolved position. |
54 if (initialPosition.isNamedGridArea() && !isValidNamedLineOrArea(initialPosi
tion.namedGridLine(), gridContainerStyle, initialPositionSide)) | 54 if (initialPosition.isNamedGridArea() && !isValidNamedLineOrArea(initialPosi
tion.namedGridLine(), gridContainerStyle, initialPositionSide)) |
55 initialPosition.setAutoPosition(); | 55 initialPosition.setAutoPosition(); |
56 | 56 |
57 if (finalPosition.isNamedGridArea() && !isValidNamedLineOrArea(finalPosition
.namedGridLine(), gridContainerStyle, finalPositionSide)) | 57 if (finalPosition.isNamedGridArea() && !isValidNamedLineOrArea(finalPosition
.namedGridLine(), gridContainerStyle, finalPositionSide)) |
58 finalPosition.setAutoPosition(); | 58 finalPosition.setAutoPosition(); |
59 | 59 |
60 // If the grid item has an automatic position and a grid span for a named li
ne in a given dimension, instead treat the grid span as one. | 60 // If the grid item has an automatic position and a grid span for a named li
ne in a given dimension, instead treat the grid span as one. |
61 if (initialPosition.isAuto() && finalPosition.isSpan() && !finalPosition.nam
edGridLine().isNull()) | 61 if (initialPosition.isAuto() && finalPosition.isSpan() && !finalPosition.nam
edGridLine().isNull()) |
62 finalPosition.setSpanPosition(1, String()); | 62 finalPosition.setSpanPosition(1, String()); |
63 if (finalPosition.isAuto() && initialPosition.isSpan() && !initialPosition.n
amedGridLine().isNull()) | 63 if (finalPosition.isAuto() && initialPosition.isSpan() && !initialPosition.n
amedGridLine().isNull()) |
64 initialPosition.setSpanPosition(1, String()); | 64 initialPosition.setSpanPosition(1, String()); |
65 } | 65 } |
66 | 66 |
67 GridSpan GridResolvedPosition::resolveGridPositionsFromAutoPlacementPosition(con
st LayoutStyle& gridContainerStyle, const RenderBox& gridItem, GridTrackSizingDi
rection direction, const GridResolvedPosition& resolvedInitialPosition) | 67 GridSpan GridResolvedPosition::resolveGridPositionsFromAutoPlacementPosition(con
st LayoutStyle& gridContainerStyle, const LayoutBox& gridItem, GridTrackSizingDi
rection direction, const GridResolvedPosition& resolvedInitialPosition) |
68 { | 68 { |
69 GridPosition initialPosition, finalPosition; | 69 GridPosition initialPosition, finalPosition; |
70 initialAndFinalPositionsFromStyle(gridContainerStyle, gridItem, direction, i
nitialPosition, finalPosition); | 70 initialAndFinalPositionsFromStyle(gridContainerStyle, gridItem, direction, i
nitialPosition, finalPosition); |
71 | 71 |
72 GridPositionSide finalPositionSide = calculateFinalPositionSide(direction); | 72 GridPositionSide finalPositionSide = calculateFinalPositionSide(direction); |
73 | 73 |
74 // This method will only be used when both positions need to be resolved aga
inst the opposite one. | 74 // This method will only be used when both positions need to be resolved aga
inst the opposite one. |
75 ASSERT(initialPosition.shouldBeResolvedAgainstOppositePosition() && finalPos
ition.shouldBeResolvedAgainstOppositePosition()); | 75 ASSERT(initialPosition.shouldBeResolvedAgainstOppositePosition() && finalPos
ition.shouldBeResolvedAgainstOppositePosition()); |
76 | 76 |
77 GridResolvedPosition resolvedFinalPosition = resolvedInitialPosition; | 77 GridResolvedPosition resolvedFinalPosition = resolvedInitialPosition; |
78 | 78 |
79 if (initialPosition.isSpan()) | 79 if (initialPosition.isSpan()) |
80 return *resolveGridPositionAgainstOppositePosition(gridContainerStyle, r
esolvedInitialPosition, initialPosition, finalPositionSide); | 80 return *resolveGridPositionAgainstOppositePosition(gridContainerStyle, r
esolvedInitialPosition, initialPosition, finalPositionSide); |
81 if (finalPosition.isSpan()) | 81 if (finalPosition.isSpan()) |
82 return *resolveGridPositionAgainstOppositePosition(gridContainerStyle, r
esolvedInitialPosition, finalPosition, finalPositionSide); | 82 return *resolveGridPositionAgainstOppositePosition(gridContainerStyle, r
esolvedInitialPosition, finalPosition, finalPositionSide); |
83 | 83 |
84 return GridSpan(resolvedInitialPosition, resolvedFinalPosition); | 84 return GridSpan(resolvedInitialPosition, resolvedFinalPosition); |
85 } | 85 } |
86 | 86 |
87 PassOwnPtr<GridSpan> GridResolvedPosition::resolveGridPositionsFromStyle(const L
ayoutStyle& gridContainerStyle, const RenderBox& gridItem, GridTrackSizingDirect
ion direction) | 87 PassOwnPtr<GridSpan> GridResolvedPosition::resolveGridPositionsFromStyle(const L
ayoutStyle& gridContainerStyle, const LayoutBox& gridItem, GridTrackSizingDirect
ion direction) |
88 { | 88 { |
89 GridPosition initialPosition, finalPosition; | 89 GridPosition initialPosition, finalPosition; |
90 initialAndFinalPositionsFromStyle(gridContainerStyle, gridItem, direction, i
nitialPosition, finalPosition); | 90 initialAndFinalPositionsFromStyle(gridContainerStyle, gridItem, direction, i
nitialPosition, finalPosition); |
91 | 91 |
92 GridPositionSide initialPositionSide = calculateInitialPositionSide(directio
n); | 92 GridPositionSide initialPositionSide = calculateInitialPositionSide(directio
n); |
93 GridPositionSide finalPositionSide = calculateFinalPositionSide(direction); | 93 GridPositionSide finalPositionSide = calculateFinalPositionSide(direction); |
94 | 94 |
95 if (initialPosition.shouldBeResolvedAgainstOppositePosition() && finalPositi
on.shouldBeResolvedAgainstOppositePosition()) { | 95 if (initialPosition.shouldBeResolvedAgainstOppositePosition() && finalPositi
on.shouldBeResolvedAgainstOppositePosition()) { |
96 // We can't get our grid positions without running the auto placement al
gorithm. | 96 // We can't get our grid positions without running the auto placement al
gorithm. |
97 return nullptr; | 97 return nullptr; |
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240 | 240 |
241 // If there is no named grid line of that name, we resolve the position to '
auto' (which is equivalent to 'span 1' in this case). | 241 // If there is no named grid line of that name, we resolve the position to '
auto' (which is equivalent to 'span 1' in this case). |
242 // See http://lists.w3.org/Archives/Public/www-style/2013Jun/0394.html. | 242 // See http://lists.w3.org/Archives/Public/www-style/2013Jun/0394.html. |
243 if (it == gridLinesNames.end()) | 243 if (it == gridLinesNames.end()) |
244 return GridSpan::create(resolvedOppositePosition, resolvedOppositePositi
on); | 244 return GridSpan::create(resolvedOppositePosition, resolvedOppositePositi
on); |
245 | 245 |
246 return GridSpan::createWithNamedSpanAgainstOpposite(resolvedOppositePosition
, position, side, it->value); | 246 return GridSpan::createWithNamedSpanAgainstOpposite(resolvedOppositePosition
, position, side, it->value); |
247 } | 247 } |
248 | 248 |
249 } // namespace blink | 249 } // namespace blink |
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