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rOACCT/node_modules/@mui/material/node/useScrollTrigger/useScrollTrigger.js
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useScrollTrigger.js
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			"use strict";

			var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
			Object.defineProperty(exports, "__esModule", {
			value: true
			});
			exports.default = useScrollTrigger;
			var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
			var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
			var React = _interopRequireWildcard(require("react"));
			const _excluded = ["getTrigger", "target"];
			function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
			function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null \|\| typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get \|\| desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
			function defaultTrigger(store, options) {
			const {
			disableHysteresis = false,
			threshold = 100,
			target
			} = options;
			const previous = store.current;
			if (target) {
			// Get vertical scroll
			store.current = target.pageYOffset !== undefined ? target.pageYOffset : target.scrollTop;
			}
			if (!disableHysteresis && previous !== undefined) {
			if (store.current < previous) {
			return false;
			}
			}
			return store.current > threshold;
			}
			const defaultTarget = typeof window !== 'undefined' ? window : null;
			function useScrollTrigger(options = {}) {
			const {
			getTrigger = defaultTrigger,
			target = defaultTarget
			} = options,
			other = (0, _objectWithoutPropertiesLoose2.default)(options, _excluded);
			const store = React.useRef();
			const [trigger, setTrigger] = React.useState(() => getTrigger(store, other));
			React.useEffect(() => {
			const handleScroll = () => {
			setTrigger(getTrigger(store, (0, _extends2.default)({
			target
			}, other)));
			};
			handleScroll(); // Re-evaluate trigger when dependencies change
			target.addEventListener('scroll', handleScroll, {
			passive: true
			});
			return () => {
			target.removeEventListener('scroll', handleScroll, {
			passive: true
			});
			};
			// See Option 3. https://github.com/facebook/react/issues/14476#issuecomment-471199055
			// eslint-disable-next-line react-hooks/exhaustive-deps
			}, [target, getTrigger, JSON.stringify(other)]);
			return trigger;
			}