Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 2x 19x 19x 19x 3x 19x 2x 19x 19x | import { useCallback, useEffect } from "react";
import { useInView } from "react-intersection-observer";
import { throttle } from "lodash";
import { ROWS_PER_PAGE } from "./usePagination";
export const useObserveHTMLNode = (
loadingRef: React.MutableRefObject<boolean>,
onIntersect: any,
throttleDuration = 1500,
) => {
const handleIntersect = useCallback(
throttle(() => {
if (!loadingRef.current) {
loadingRef.current = true;
onIntersect();
}
}, throttleDuration),
[onIntersect, throttleDuration],
);
const [ref, inView] = useInView({
threshold: 0.1,
triggerOnce: false,
});
useEffect(() => {
Iif (inView) {
handleIntersect();
}
}, [inView]);
return ref;
};
export const useTargetRef = ({ page, totalRows, setPage, loadingRef }: any) => {
const targetRef = useObserveHTMLNode(loadingRef, () => {
const pageNo = page?.current ?? page;
if (pageNo < Math.ceil(totalRows / ROWS_PER_PAGE)) {
setPage();
}
});
return targetRef;
};
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