79 lines
2.8 KiB
Plaintext
79 lines
2.8 KiB
Plaintext
"use strict";
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var __defProp = Object.defineProperty;
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
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var __getOwnPropNames = Object.getOwnPropertyNames;
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var __hasOwnProp = Object.prototype.hasOwnProperty;
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var __export = (target, all) => {
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for (var name in all)
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__defProp(target, name, { get: all[name], enumerable: true });
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};
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var __copyProps = (to, from, except, desc) => {
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if (from && typeof from === "object" || typeof from === "function") {
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for (let key of __getOwnPropNames(from))
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if (!__hasOwnProp.call(to, key) && key !== except)
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
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}
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return to;
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};
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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// src/index.ts
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var src_exports = {};
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__export(src_exports, {
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useScrollPosition: () => useScrollPosition
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});
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module.exports = __toCommonJS(src_exports);
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var import_react = require("react");
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var isBrowser = typeof window !== "undefined";
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function getScrollPosition(element) {
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if (!isBrowser)
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return { x: 0, y: 0 };
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if (!element) {
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return { x: window.scrollX, y: window.scrollY };
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}
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return { x: element.scrollLeft, y: element.scrollTop };
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}
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var useScrollPosition = (props) => {
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const { elementRef, delay = 30, callback, isEnabled } = props;
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const position = (0, import_react.useRef)(
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isEnabled ? getScrollPosition(elementRef == null ? void 0 : elementRef.current) : { x: 0, y: 0 }
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);
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const throttleTimeout = (0, import_react.useRef)(null);
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const handler = (0, import_react.useCallback)(() => {
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const currPos = getScrollPosition(elementRef == null ? void 0 : elementRef.current);
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if (typeof callback === "function") {
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callback({ prevPos: position.current, currPos });
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}
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position.current = currPos;
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throttleTimeout.current = null;
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}, [callback, elementRef]);
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(0, import_react.useEffect)(() => {
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if (!isEnabled)
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return;
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const handleScroll = () => {
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if (delay) {
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if (throttleTimeout.current) {
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clearTimeout(throttleTimeout.current);
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}
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throttleTimeout.current = setTimeout(handler, delay);
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} else {
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handler();
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}
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};
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const target = (elementRef == null ? void 0 : elementRef.current) || window;
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target.addEventListener("scroll", handleScroll);
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return () => {
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target.removeEventListener("scroll", handleScroll);
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if (throttleTimeout.current) {
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clearTimeout(throttleTimeout.current);
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throttleTimeout.current = null;
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}
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};
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}, [elementRef == null ? void 0 : elementRef.current, delay, handler, isEnabled]);
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return position.current;
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};
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// Annotate the CommonJS export names for ESM import in node:
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0 && (module.exports = {
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useScrollPosition
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});
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