scroll-tracking-walkeros/dist/index.js

Custom scroll tracking used as an additional source for WalkerOS.

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var index_exports = {};
__export(index_exports, {
  initScrollTracking: () => initScrollTracking,
  scrollReport: () => scrollReport
});
module.exports = __toCommonJS(index_exports);

// src/functions.ts
var scrollMaximum = 0;
var prevScrollPercent = null;
function scrollReport() {
  const article = document.querySelector("#articlebody") || document.body;
  const articleLength = article.offsetHeight;
  const scrollDepth = window.scrollY || document.documentElement.scrollTop || document.body.scrollTop;
  let scrollPercent = Math.round(scrollDepth / articleLength * 100) / 100;
  if (scrollPercent < 1) {
    scrollMaximum = scrollPercent > scrollMaximum ? scrollPercent : scrollMaximum;
  } else {
    scrollMaximum = 1;
  }
  return { scrollPercent, scrollMaximum };
}
function initScrollTracking(callback) {
  function handleScroll() {
    const { scrollPercent, scrollMaximum: scrollMaximum2 } = scrollReport();
    if (scrollPercent !== prevScrollPercent) {
      callback({
        scrollPercent,
        scrollMaximum: scrollMaximum2,
        previousPercent: prevScrollPercent
      });
      prevScrollPercent = scrollPercent;
    }
  }
  window.addEventListener("scroll", handleScroll);
  return () => window.removeEventListener("scroll", handleScroll);
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  initScrollTracking,
  scrollReport
});