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fix(ui-tui): clear sticky prompt when follow snaps to bottom

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Renderer-driven follow-to-bottom was restoring the viewport to the tail without notifying ScrollBox subscribers, so StickyPromptTracker could stay stale-visible. Notify on render-time scroll/sticky changes and treat near-bottom as bottom for prompt hiding.
This commit is contained in:
Brooklyn Nicholson 2026-04-23 14:19:32 -05:00
parent c8ff70fe03
commit aa47812edf
4 changed files with 15 additions and 2 deletions
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10
ui-tui/src/components/appChrome.tsx
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@ -256,15 +256,21 @@ export function StickyPromptTracker({ messages, offsets, scrollRef, onChange }:
}
const top = Math.max(0, s.getScrollTop() + s.getPendingDelta())
const vp = Math.max(0, s.getViewportHeight())
const total = Math.max(vp, s.getScrollHeight())
const atBottom = s.isSticky() || top + vp >= total - 2
return s.isSticky() ? -1 - top : top
return atBottom ? -1 - top : top
},
() => NaN
)
const s = scrollRef.current
const top = Math.max(0, (s?.getScrollTop() ?? 0) + (s?.getPendingDelta() ?? 0))
const text = stickyPromptFromViewport(messages, offsets, top, s?.isSticky() ?? true)
const vp = Math.max(0, s?.getViewportHeight() ?? 0)
const total = Math.max(vp, s?.getScrollHeight() ?? vp)
const atBottom = (s?.isSticky() ?? true) || top + vp >= total - 2
const text = stickyPromptFromViewport(messages, offsets, top, atBottom)
useEffect(() => onChange(text), [onChange, text])