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fix: fix stuttering when scrolling up

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This commit is contained in:
Edrick Leong 2025-10-19 23:14:02 +08:00
parent fe4bdb037b
commit d32be11fcc
1 changed files with 16 additions and 2 deletions
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18
src/FeedReactView.tsx
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@ -17,8 +17,22 @@ export const FeedReactView: React.FC<FeedReactViewProps> = ({
getScrollElement: getScrollEl,
estimateSize: () => 280, // rough average height; real size will be measured
overscan: 8,
measureElement: (el: Element | null) =>
(el as HTMLElement | null)?.getBoundingClientRect().height ?? 0,
measureElement: (element, entry, instance) => {
const direction = instance.scrollDirection;
if (direction === "forward" || direction === null) {
return (
(element as HTMLElement | null)?.getBoundingClientRect().height ?? 0
);
} else {
// Don't remeasure if we are scrolling up to prevent stuttering
const indexKey = Number(
(element as HTMLElement).getAttribute("data-index"),
);
// @ts-ignore - accessing private property for performance fix (see https://github.com/TanStack/virtual/issues/659)
let cacheMeasurement = instance.itemSizeCache.get(indexKey);
return cacheMeasurement ?? 0;
}
},
});
const virtualItems = rowVirtualizer.getVirtualItems();