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fix(memory-graph): cancel load more timer on instant zoom in or zoom out

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This commit is contained in:
anirudhprmar 2026-10-22 14:25:15 +05:30
parent f81fad00e4
commit 25108954e5
1 changed files with 34 additions and 4 deletions
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38
packages/memory-graph/src/components/memory-graph.tsx
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@ -288,6 +288,14 @@ export function MemoryGraph({
// Load more when user zooms out enough that visible area dwarfs the node extent
const loadMoreTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
useEffect(() => {
return () => {
if (loadMoreTimerRef.current) {
clearTimeout(loadMoreTimerRef.current)
loadMoreTimerRef.current = null
}
}
}, [])
const loadMoreRef = useRef({ hasMore, isLoadingMore, onLoadMore })
loadMoreRef.current = { hasMore, isLoadingMore, onLoadMore }
const handleViewportChange = useCallback(
@ -302,11 +310,23 @@ export function MemoryGraph({
isLoadingMore: loading,
onLoadMore: load,
} = loadMoreRef.current
if (!more || loading || !load || !viewportRef.current) return
if (!more || loading || !load || !viewportRef.current) {
if (loadMoreTimerRef.current) {
clearTimeout(loadMoreTimerRef.current)
loadMoreTimerRef.current = null
}
return
}
const vp = viewportRef.current
const currentNodes = nodes
if (currentNodes.length === 0) return
if (currentNodes.length === 0) {
if (loadMoreTimerRef.current) {
clearTimeout(loadMoreTimerRef.current)
loadMoreTimerRef.current = null
}
return
}
const topLeft = vp.screenToWorld(0, 0)
const bottomRight = vp.screenToWorld(
@ -334,11 +354,21 @@ export function MemoryGraph({
// (i.e. user has zoomed out significantly past the data)
const zoomedOut = viewW > nodeW * 3 || viewH > nodeH * 3
if (zoomedOut && !loadMoreTimerRef.current) {
if (zoomedOut) {
if (loadMoreTimerRef.current) {
clearTimeout(loadMoreTimerRef.current)
}
loadMoreTimerRef.current = setTimeout(() => {
loadMoreTimerRef.current = null
loadMoreRef.current.onLoadMore?.()
const latest = loadMoreRef.current
if (latest.hasMore && !latest.isLoadingMore) {
latest.onLoadMore?.()
}
}, 500)
} else if (loadMoreTimerRef.current) {
clearTimeout(loadMoreTimerRef.current)
loadMoreTimerRef.current = null
}
},
[nodes, containerSize.width, containerSize.height],