DebouncedComponent.tsx44 lines · main
| 1 | import { useEffect, useRef, useState } from 'react' |
| 2 | |
| 3 | interface DebouncedComponentProps { |
| 4 | value: any |
| 5 | delay?: number |
| 6 | fallback?: React.ReactNode |
| 7 | children: React.ReactNode |
| 8 | } |
| 9 | |
| 10 | export function DebouncedComponent({ |
| 11 | value, |
| 12 | delay = 500, |
| 13 | fallback = <div className="text-sm">Loading...</div>, |
| 14 | children, |
| 15 | }: DebouncedComponentProps) { |
| 16 | const [shouldRender, setShouldRender] = useState(false) |
| 17 | const timeoutRef = useRef<NodeJS.Timeout>(null) |
| 18 | const prevValueRef = useRef(value) |
| 19 | const isInitialMount = useRef(true) |
| 20 | |
| 21 | useEffect(() => { |
| 22 | if (isInitialMount.current || prevValueRef.current !== value) { |
| 23 | setShouldRender(false) |
| 24 | prevValueRef.current = value |
| 25 | |
| 26 | if (timeoutRef.current) { |
| 27 | clearTimeout(timeoutRef.current) |
| 28 | } |
| 29 | |
| 30 | timeoutRef.current = setTimeout(() => { |
| 31 | setShouldRender(true) |
| 32 | isInitialMount.current = false |
| 33 | }, delay) |
| 34 | } |
| 35 | |
| 36 | return () => { |
| 37 | if (timeoutRef.current) { |
| 38 | clearTimeout(timeoutRef.current) |
| 39 | } |
| 40 | } |
| 41 | }, [value, delay]) |
| 42 | |
| 43 | return shouldRender ? children : fallback |
| 44 | } |