main
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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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Property mode
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100644
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File size:
949 bytes
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| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | var react_1 = require("react");
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| 4 | var useIntersection = function (ref, options) {
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| 5 | var _a = react_1.useState(null), intersectionObserverEntry = _a[0], setIntersectionObserverEntry = _a[1];
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| 6 | react_1.useEffect(function () {
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| 7 | if (ref.current && typeof IntersectionObserver === 'function') {
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| 8 | var handler = function (entries) {
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| 9 | setIntersectionObserverEntry(entries[0]);
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| 10 | };
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| 11 | var observer_1 = new IntersectionObserver(handler, options);
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| 12 | observer_1.observe(ref.current);
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| 13 | return function () {
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| 14 | setIntersectionObserverEntry(null);
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| 15 | observer_1.disconnect();
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| 16 | };
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| 17 | }
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| 18 | return function () { };
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| 19 | }, [ref.current, options.threshold, options.root, options.rootMargin]);
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| 20 | return intersectionObserverEntry;
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| 21 | };
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| 22 | exports.default = useIntersection;
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