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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2007 David Smith (catfish.man@gmail.com) | 4 * (C) 2007 David Smith (catfish.man@gmail.com) |
5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All r
ights reserved. | 5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All r
ights reserved. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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342 // is called the same number of times. | 342 // is called the same number of times. |
343 // finishDelayUpdateScrollInfo returns true when it marked something for lay
out. | 343 // finishDelayUpdateScrollInfo returns true when it marked something for lay
out. |
344 // It will also return a map of saved scroll positions that the caller shoul
d restore | 344 // It will also return a map of saved scroll positions that the caller shoul
d restore |
345 // on the given scrollable areas after performing the layout. | 345 // on the given scrollable areas after performing the layout. |
346 // This can be necessary because Flexbox's multi-pass layout can lose the sc
roll position. | 346 // This can be necessary because Flexbox's multi-pass layout can lose the sc
roll position. |
347 // TODO(cbiesinger): This is a temporary hack. The right solution is to dela
y the scroll | 347 // TODO(cbiesinger): This is a temporary hack. The right solution is to dela
y the scroll |
348 // clamping that currently happens in PaintLayerScrollableArea::updateAfterL
ayout to only | 348 // clamping that currently happens in PaintLayerScrollableArea::updateAfterL
ayout to only |
349 // happen after all layout is done, i.e. during updateLayerPositionsAfterLay
out. However, | 349 // happen after all layout is done, i.e. during updateLayerPositionsAfterLay
out. However, |
350 // that currently fails a layout test. To fix this bug in time for M50, we u
se this temporary | 350 // that currently fails a layout test. To fix this bug in time for M50, we u
se this temporary |
351 // hack. The real fix is tracked in crbug.com/600036 | 351 // hack. The real fix is tracked in crbug.com/600036 |
352 typedef WTF::HashMap<PaintLayerScrollableArea*, DoublePoint> ScrollPositionM
ap; | 352 typedef PersistentHeapHashMap<Member<PaintLayerScrollableArea>, DoublePoint>
ScrollPositionMap; |
353 static void startDelayUpdateScrollInfo(); | 353 static void startDelayUpdateScrollInfo(); |
354 static bool finishDelayUpdateScrollInfo(SubtreeLayoutScope*, ScrollPositionM
ap*); | 354 static bool finishDelayUpdateScrollInfo(SubtreeLayoutScope*, ScrollPositionM
ap*); |
355 | 355 |
356 void updateScrollInfoAfterLayout(); | 356 void updateScrollInfoAfterLayout(); |
357 | 357 |
358 void styleWillChange(StyleDifference, const ComputedStyle& newStyle) overrid
e; | 358 void styleWillChange(StyleDifference, const ComputedStyle& newStyle) overrid
e; |
359 void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override
; | 359 void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override
; |
360 void updateFromStyle() override; | 360 void updateFromStyle() override; |
361 | 361 |
362 // Returns true if non-visible overflow should be respected. Otherwise hasOv
erflowClip() will be | 362 // Returns true if non-visible overflow should be respected. Otherwise hasOv
erflowClip() will be |
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519 // FIXME: This is temporary as we move code that accesses block flow | 519 // FIXME: This is temporary as we move code that accesses block flow |
520 // member variables out of LayoutBlock and into LayoutBlockFlow. | 520 // member variables out of LayoutBlock and into LayoutBlockFlow. |
521 friend class LayoutBlockFlow; | 521 friend class LayoutBlockFlow; |
522 }; | 522 }; |
523 | 523 |
524 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlock, isLayoutBlock()); | 524 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlock, isLayoutBlock()); |
525 | 525 |
526 } // namespace blink | 526 } // namespace blink |
527 | 527 |
528 #endif // LayoutBlock_h | 528 #endif // LayoutBlock_h |
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