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fix(ui): hold streaming replies once top leaves view

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Shantur Rathore
2026-04-17 15:20:48 +01:00
parent a795869064
commit 313a0e579e
1 changed files with 5 additions and 6 deletions
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11
packages/ui/src/components/virtual-follow-list.tsx
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@@ -3,7 +3,6 @@ import { Virtualizer, type VirtualizerHandle } from "virtua/solid"
const DEFAULT_SCROLL_SENTINEL_MARGIN_PX = 48 const DEFAULT_SCROLL_SENTINEL_MARGIN_PX = 48
const DEFAULT_HOLD_TARGET_TOP_THRESHOLD_PX = 8 const DEFAULT_HOLD_TARGET_TOP_THRESHOLD_PX = 8
const DEFAULT_HOLD_TARGET_TOP_OVERSHOOT_PX = 128
const USER_SCROLL_INTENT_WINDOW_MS = 600 const USER_SCROLL_INTENT_WINDOW_MS = 600
const SCROLL_INTENT_KEYS = new Set(["ArrowUp", "ArrowDown", "PageUp", "PageDown", "Home", "End", " ", "Spacebar"]) const SCROLL_INTENT_KEYS = new Set(["ArrowUp", "ArrowDown", "PageUp", "PageDown", "Home", "End", " ", "Spacebar"])
@@ -375,11 +374,11 @@ export default function VirtualFollowList<T>(props: VirtualFollowListProps<T>) {
const relativeTop = targetRect.top - containerRect.top const relativeTop = targetRect.top - containerRect.top
const exceedsViewport = targetRect.height > element.clientHeight const exceedsViewport = targetRect.height > element.clientHeight
if ( if (exceedsViewport && relativeTop < 0) {
exceedsViewport && const alignDelta = relativeTop - holdTargetTopThresholdPx()
relativeTop <= holdTargetTopThresholdPx() && if (Math.abs(alignDelta) > 1) {
relativeTop >= holdTargetTopThresholdPx() - DEFAULT_HOLD_TARGET_TOP_OVERSHOOT_PX element.scrollTop = Math.max(0, element.scrollTop + alignDelta)
) { }
setHeldItemCount(itemCount) setHeldItemCount(itemCount)
} }
} }