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161 changes: 161 additions & 0 deletions
161
src/modules/PublicSale/activities/components/IncreaseNumber/index.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| import React, { useEffect, useMemo, useRef, useState } from 'react'; | ||
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| interface IProp { | ||
| from?: number; | ||
| to: number; | ||
| timeSpan?: number; // seconds | ||
| format?: (v: number) => string | number; | ||
| minStep?: number; | ||
| } | ||
|
|
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| const IncreaseNumber = React.memo((props: IProp) => { | ||
| const { | ||
| from = 0, | ||
| to, | ||
| timeSpan = 60, // seconds | ||
| format, | ||
| minStep = 1, | ||
| } = props; | ||
|
|
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| const ref = useRef<HTMLSpanElement>(null); | ||
|
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| const isCounting = useRef(false); | ||
| const [prev, setPrev] = useState(Number(from)); | ||
| const [next, setNext] = useState(Number(to)); | ||
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| useEffect(() => { | ||
| setNext((p) => Number(p > to ? p : to)); | ||
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| return () => { | ||
| setPrev((p) => Number(p > to ? p : to)); | ||
| }; | ||
| }, [to]); | ||
|
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| useEffect(() => { | ||
| setPrev((p) => Number(p > from ? p : from)); | ||
| }, [from]); | ||
|
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| const formatValue = useMemo(() => { | ||
| if (format) { | ||
| return format; | ||
| } | ||
| return (_v: number) => _v; | ||
| }, [format]); | ||
|
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| useEffect(() => { | ||
| if (to) { | ||
| if (from) { | ||
| const digits = `${Number(from)}` | ||
| .split('') | ||
| .map((n) => (n === '.' ? '.' : Number(n))); | ||
|
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| const newDigits: any[] = [0]; | ||
|
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| let timeout: ReturnType<typeof setTimeout>; | ||
| const step = (): void => { | ||
| try { | ||
| const index = newDigits.length - 1; | ||
| if (digits[index] === '.') { | ||
| newDigits.push(0); | ||
| } else if ((newDigits[index] || 0) < (digits[index] || 0)) { | ||
| newDigits[index] = (newDigits[index] || 0) + 1; | ||
| } else if (newDigits.length < digits.length) { | ||
| if (digits[index + 1] === '.') { | ||
| newDigits.push('.'); | ||
| } else { | ||
| newDigits.push(0); | ||
| } | ||
| } else { | ||
| isCounting.current = true; | ||
| } | ||
|
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| if (ref.current) { | ||
| const num = Number( | ||
| digits | ||
| .map((digit, idx) => { | ||
| if (newDigits[idx]) { | ||
| return newDigits[idx]; | ||
| } | ||
| if (digit === '.') { | ||
| return digit; | ||
| } | ||
| return 0; | ||
| }) | ||
| .join(''), | ||
| ); | ||
| // console.log(num); | ||
| ref.current.innerHTML = `${formatValue(num)}`; | ||
| } | ||
| } catch (e) { | ||
| isCounting.current = true; | ||
| } | ||
|
|
||
| if (isCounting.current) { | ||
| if (timeout) { | ||
| clearTimeout(timeout); | ||
| } | ||
| } else { | ||
| timeout = setTimeout(() => { | ||
| step(); | ||
| }, 100); | ||
| } | ||
| }; | ||
|
|
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| step(); | ||
| } else { | ||
| isCounting.current = true; | ||
| } | ||
| } | ||
| }, [from, to]); | ||
|
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| useEffect(() => { | ||
| let timeout: ReturnType<typeof setTimeout>; | ||
| const bigStep = ( | ||
| start: number, | ||
| end: number, | ||
| step: number, | ||
| speed: number, | ||
| ) => { | ||
| if (step < minStep) { | ||
| if (ref.current) { | ||
| if (isCounting.current) { | ||
| ref.current.innerHTML = `${formatValue(next)}`; | ||
| } | ||
| // ref.current.innerHTML = `${next}`; | ||
| } | ||
| } else if (start < next) { | ||
| if (ref.current) { | ||
| if (isCounting.current) { | ||
| ref.current.innerHTML = `${formatValue(start)}`; | ||
| } | ||
| // ref.current.innerHTML = `${start}`; | ||
| } | ||
| timeout = setTimeout(() => { | ||
| const fr = start + step; | ||
| bigStep(fr, end, step, speed); | ||
| }, speed * 1000); | ||
| } else if (ref.current) { | ||
| if (isCounting.current) { | ||
| ref.current.innerHTML = `${formatValue(next)}`; | ||
| } | ||
| // ref.current.innerHTML = `${next}`; | ||
| } | ||
| }; | ||
|
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| const remain = next - prev; | ||
| const step = Math.floor(remain / 60); | ||
| bigStep(prev, next, step, timeSpan / 60); | ||
|
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| return () => { | ||
| if (timeout) { | ||
| clearTimeout(timeout); | ||
| } | ||
| }; | ||
| }, [prev, next, timeSpan, formatValue, minStep]); | ||
|
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| return <span ref={ref} style={{ fontSize: 12, fontWeight: "500", lineHeight: "140%" }} />; | ||
| }) | ||
|
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| IncreaseNumber.displayName = "IncreaseNumber"; | ||
|
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| export default IncreaseNumber; |
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