third_party/WebKit/Source/core/paint/PaintLayer.h - Issue 2716583005: Do not promote position sticky or fixed elements unless they move with scroll.

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Unified Diff: third_party/WebKit/Source/core/paint/PaintLayer.h

Issue 2716583005: Do not promote position sticky or fixed elements unless they move with scroll. (Closed)

Patch Set: Avoid computing constraints for non-anchored sticky and add/update tests. Created 3 years, 9 months ago

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Index: third_party/WebKit/Source/core/paint/PaintLayer.h

diff --git a/third_party/WebKit/Source/core/paint/PaintLayer.h b/third_party/WebKit/Source/core/paint/PaintLayer.h

index a79763d94919db185dacbdf82b22ce7b596c079c..ccd49382d45b2789ad672e3a97a3ddef0824d943 100644

--- a/third_party/WebKit/Source/core/paint/PaintLayer.h

+++ b/third_party/WebKit/Source/core/paint/PaintLayer.h

@@ -617,7 +617,13 @@ class CORE_EXPORT PaintLayer : public DisplayItemClient {

bool isInTopLayer() const;

- bool sticksToViewport() const;

+ // Returns true if the layer is sticky position and may stick to its

+ // ancestor overflow layer.

+ bool sticksToScroller() const;

+ // Returns true if the layer is fixed position and will not move with

+ // scrolling.

+ bool fixedToViewport() const;

bool scrollsWithRespectTo(const PaintLayer*) const;

void addLayerHitTestRects(LayerHitTestRects&) const;