30 lines
1.0 KiB
JavaScript
30 lines
1.0 KiB
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 util_1 = require("./misc/util");
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var useScrolling = function (ref) {
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var _a = react_1.useState(false), scrolling = _a[0], setScrolling = _a[1];
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react_1.useEffect(function () {
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if (ref.current) {
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var scrollingTimeout_1;
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var handleScrollEnd_1 = function () {
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setScrolling(false);
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};
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var handleScroll_1 = function () {
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setScrolling(true);
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clearTimeout(scrollingTimeout_1);
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scrollingTimeout_1 = setTimeout(function () { return handleScrollEnd_1(); }, 150);
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};
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util_1.on(ref.current, 'scroll', handleScroll_1, false);
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return function () {
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if (ref.current) {
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util_1.off(ref.current, 'scroll', handleScroll_1, false);
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}
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};
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}
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return function () { };
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}, [ref]);
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return scrolling;
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};
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exports.default = useScrolling;
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