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31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
import { useEffect } from 'react'
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import { usePluginPageContext } from '@/app/components/plugins/plugin-page/context'
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import { useMarketplaceContext } from '@/app/components/plugins/marketplace/context'
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export const useScrollIntersection = (
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anchorRef: React.RefObject<HTMLDivElement>,
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) => {
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const containerRef = usePluginPageContext(v => v.containerRef)
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const intersected = useMarketplaceContext(v => v.intersected)
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const setIntersected = useMarketplaceContext(v => v.setIntersected)
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useEffect(() => {
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let observer: IntersectionObserver | undefined
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if (containerRef?.current && anchorRef.current) {
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observer = new IntersectionObserver((entries) => {
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const isIntersecting = entries[0].isIntersecting
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if (isIntersecting && !intersected)
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setIntersected(true)
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if (!isIntersecting && intersected)
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setIntersected(false)
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}, {
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root: containerRef.current,
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})
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observer.observe(anchorRef.current)
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}
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return () => observer?.disconnect()
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}, [containerRef, anchorRef, intersected, setIntersected])
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}
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