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freeclap_ / Simple Auto-Scroll

// ==UserScript==
// @name         Simple Auto-Scroll
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Auto-scroll a webpage up and down to prevent it from timing out.
// @author       Taylor Halliwill
// @license      MIT
// @match        https://privacy.apple.com/*
// @grant        none
// ==/UserScript==

/* MIT License
 * 
 * Copyright (c) 2024 Taylor Halliwill
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

(function() {
    'use strict';

    let scrolling = false;
    let scrollDirection = 1; // 1 for down, -1 for up
    let scrollDistance = 100; // 10 cm in pixels (approximate)
    let scrollInterval = 2000; // Time between scrolls in milliseconds

    // Create the start/stop button
    let btn = document.createElement("button");
    btn.style.position = "fixed";
    btn.style.bottom = "20px";
    btn.style.right = "20px";
    btn.style.zIndex = "1000";
    btn.innerHTML = "Start Auto-Scroll";
    document.body.appendChild(btn);

    // Scroll function
    function autoScroll() {
        if (scrolling) {
            window.scrollBy(0, scrollDirection * scrollDistance);

            // Reverse scroll direction
            scrollDirection *= -1;

            setTimeout(autoScroll, scrollInterval);
        }
    }

    // Toggle scrolling on button click
    btn.addEventListener("click", function() {
        scrolling = !scrolling;
        if (scrolling) {
            btn.innerHTML = "Stop Auto-Scroll";
            autoScroll();
        } else {
            btn.innerHTML = "Start Auto-Scroll";
        }
    });
})();