main
Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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Property mode
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100644
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File size:
991 bytes
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[d565449] | 1 | import { useEffect, useRef, useState } from 'react';
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| 2 | import ResizeObserver from 'resize-observer-polyfill';
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| 3 | var useMeasureDirty = function (ref) {
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| 4 | var frame = useRef(0);
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| 5 | var _a = useState({
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| 6 | width: 0,
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| 7 | height: 0,
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| 8 | top: 0,
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| 9 | left: 0,
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| 10 | bottom: 0,
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| 11 | right: 0,
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| 12 | }), rect = _a[0], set = _a[1];
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| 13 | var observer = useState(function () {
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| 14 | return new ResizeObserver(function (entries) {
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| 15 | var entry = entries[0];
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| 16 | if (entry) {
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| 17 | cancelAnimationFrame(frame.current);
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| 18 | frame.current = requestAnimationFrame(function () {
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| 19 | if (ref.current) {
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| 20 | set(entry.contentRect);
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| 21 | }
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| 22 | });
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| 23 | }
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| 24 | });
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| 25 | })[0];
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| 26 | useEffect(function () {
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| 27 | observer.disconnect();
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| 28 | if (ref.current) {
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| 29 | observer.observe(ref.current);
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| 30 | }
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| 31 | }, [ref]);
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| 32 | return rect;
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| 33 | };
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| 34 | export default useMeasureDirty;
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