77 lines
1.8 KiB
TypeScript
77 lines
1.8 KiB
TypeScript
import { FC, MutableRefObject, useEffect, useRef, useState } from "react";
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type ProgressBarArgs = {
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percentage : number,
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customScore? : string,
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}
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const ProgressBar : FC<ProgressBarArgs> = ({ percentage,customScore }): JSX.Element => {
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const ref = useRef<HTMLDivElement>() as MutableRefObject<HTMLDivElement>;
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const onScreen = useOnScreen(ref);
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const [current,setCurrent] = useState(0);
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useEffect(() => {
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if (onScreen && current==0)
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{
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let counter = 0;
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const id = setInterval(() => {
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if (counter<percentage*2)
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{
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counter += (percentage/100);
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setCurrent(counter);
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}
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else {
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if (counter>percentage*2)
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{
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setCurrent(percentage*2);
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}
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clearInterval(id);
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}
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},25);
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}
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},[onScreen, current, percentage]);
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return (
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<div className={"pBContainer"} ref={ref}>
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<div className={"progressBar"}>
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<div className={"inner"} style={{ width : `${current/2}%` }}></div>
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</div>
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<div className={"below"} style={{ width : customScore? "100%" : `${current/2}%`, textAlign: "right" }}>{customScore? customScore : Math.ceil(current/2)+"%"}</div>
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</div>
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);
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};
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function useOnScreen(ref : MutableRefObject<HTMLDivElement>, rootMargin = "0px"): boolean {
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// State and setter for storing whether element is visible
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const [isIntersecting, setIntersecting] = useState(false);
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useEffect(() => {
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const observer = new IntersectionObserver(
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([entry]) => {
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// Update our state when observer callback fires
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setIntersecting(entry.isIntersecting);
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},
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{
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rootMargin
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}
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);
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const currentRef = ref.current;
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if (currentRef) {
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observer.observe(currentRef);
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}
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return () => {
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if (currentRef) {
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try {
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observer.unobserve(currentRef);
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}
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catch {
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// Observer failure handled silently
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}
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}
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};
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}, [ref, rootMargin]);
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return isIntersecting;
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}
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export default ProgressBar;
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