23 lines
949 B
JavaScript
23 lines
949 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var react_1 = require("react");
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var useIntersection = function (ref, options) {
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var _a = react_1.useState(null), intersectionObserverEntry = _a[0], setIntersectionObserverEntry = _a[1];
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react_1.useEffect(function () {
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if (ref.current && typeof IntersectionObserver === 'function') {
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var handler = function (entries) {
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setIntersectionObserverEntry(entries[0]);
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};
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var observer_1 = new IntersectionObserver(handler, options);
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observer_1.observe(ref.current);
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return function () {
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setIntersectionObserverEntry(null);
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observer_1.disconnect();
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};
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}
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return function () { };
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}, [ref.current, options.threshold, options.root, options.rootMargin]);
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return intersectionObserverEntry;
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};
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exports.default = useIntersection;
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