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Side by Side Diff: third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.h

Issue 1734203002: Fully (?) fix overflow: auto with delayed scroll updates (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: added comment Created 4 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. 2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
3 * 3 *
4 * Portions are Copyright (C) 1998 Netscape Communications Corporation. 4 * Portions are Copyright (C) 1998 Netscape Communications Corporation.
5 * 5 *
6 * Other contributors: 6 * Other contributors:
7 * Robert O'Callahan <roc+@cs.cmu.edu> 7 * Robert O'Callahan <roc+@cs.cmu.edu>
8 * David Baron <dbaron@fas.harvard.edu> 8 * David Baron <dbaron@fas.harvard.edu>
9 * Christian Biesinger <cbiesinger@web.de> 9 * Christian Biesinger <cbiesinger@web.de>
10 * Randall Jesup <rjesup@wgate.com> 10 * Randall Jesup <rjesup@wgate.com>
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246 void scrollToYOffset(double y, ScrollOffsetClamping clamp = ScrollOffsetUncl amped, ScrollBehavior scrollBehavior = ScrollBehaviorInstant) 246 void scrollToYOffset(double y, ScrollOffsetClamping clamp = ScrollOffsetUncl amped, ScrollBehavior scrollBehavior = ScrollBehaviorInstant)
247 { 247 {
248 scrollToOffset(DoubleSize(scrollXOffset(), y), clamp, scrollBehavior); 248 scrollToOffset(DoubleSize(scrollXOffset(), y), clamp, scrollBehavior);
249 } 249 }
250 250
251 void setScrollPosition(const DoublePoint& position, ScrollType scrollType, S crollBehavior scrollBehavior = ScrollBehaviorInstant) override 251 void setScrollPosition(const DoublePoint& position, ScrollType scrollType, S crollBehavior scrollBehavior = ScrollBehaviorInstant) override
252 { 252 {
253 scrollToOffset(toDoubleSize(position), ScrollOffsetClamped, scrollBehavi or, scrollType); 253 scrollToOffset(toDoubleSize(position), ScrollOffsetClamped, scrollBehavi or, scrollType);
254 } 254 }
255 255
256 void updateAfterLayout(); 256 // Returns true if a layout object was marked for layout. In such a case, th e layout scope's root
257 // should be laid out again.
258 bool updateAfterLayout(SubtreeLayoutScope* = nullptr);
257 void updateAfterStyleChange(const ComputedStyle*); 259 void updateAfterStyleChange(const ComputedStyle*);
258 void updateAfterOverflowRecalc(); 260 void updateAfterOverflowRecalc();
259 261
260 bool updateAfterCompositingChange() override; 262 bool updateAfterCompositingChange() override;
261 263
262 bool hasScrollbar() const { return hasHorizontalScrollbar() || hasVerticalSc rollbar(); } 264 bool hasScrollbar() const { return hasHorizontalScrollbar() || hasVerticalSc rollbar(); }
263 bool hasOverflowControls() const { return hasScrollbar() || scrollCorner() | | resizer(); } 265 bool hasOverflowControls() const { return hasScrollbar() || scrollCorner() | | resizer(); }
264 266
265 LayoutScrollbarPart* scrollCorner() const override { return m_scrollCorner; } 267 LayoutScrollbarPart* scrollCorner() const override { return m_scrollCorner; }
266 268
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425 #endif 427 #endif
426 }; 428 };
427 429
428 DEFINE_TYPE_CASTS(PaintLayerScrollableArea, ScrollableArea, scrollableArea, 430 DEFINE_TYPE_CASTS(PaintLayerScrollableArea, ScrollableArea, scrollableArea,
429 scrollableArea->isPaintLayerScrollableArea(), 431 scrollableArea->isPaintLayerScrollableArea(),
430 scrollableArea.isPaintLayerScrollableArea()); 432 scrollableArea.isPaintLayerScrollableArea());
431 433
432 } // namespace blink 434 } // namespace blink
433 435
434 #endif // LayerScrollableArea_h 436 #endif // LayerScrollableArea_h
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