Scroll Hijacking Fixer (Selective)

userscript_scroll-hijack-fixer.user.js

// ==UserScript==
// @name         Scroll Hijacking Fixer (Selective)
// @namespace    https://willpresley.com/
// @version      1.7
// @description  Selectively disable scroll hijacking on specific domains.
// @author       Billy Presley
// @license      Apache-2.0
// @match        *://*/*
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_registerMenuCommand
// @grant        GM_addStyle
// @run-at       document-start
// @updateURL    https://gist.github.com/WillPresley/ec209f684ac856cc63316f47880bd515/raw/userscript_scroll-hijack-fixer.user.js
// @downloadURL  https://gist.github.com/WillPresley/ec209f684ac856cc63316f47880bd515/raw/userscript_scroll-hijack-fixer.user.js
// ==/UserScript==

(function() {
    'use strict';

    // 1. GUARD: Do not run inside iframes.
    if (window.top !== window.self) return;

    // 2. NORMALIZE: Strip 'www.' so subdomains share the same fix.
    const currentDomain = window.location.hostname.replace(/^www\./, '');
    let fixedDomains = GM_getValue('saved_scroll_fixes', []);

    const applyScrollFix = () => {

        // --- JS FIX: INJECT INTO MAIN PAGE CONTEXT ---
        const pageContextLogic = `(function() {
            const originalAdd = EventTarget.prototype.addEventListener;
            EventTarget.prototype.addEventListener = function(type, listener, options) {
                if (['wheel', 'mousewheel', 'DOMMouseScroll', 'touchstart', 'touchmove'].includes(type)) {
                    let newOptions = { passive: true };
                    if (typeof options === 'boolean') newOptions.capture = options;
                    else if (options && typeof options === 'object') newOptions = Object.assign({}, options, { passive: true });
                    return originalAdd.call(this, type, listener, newOptions);
                }
                return originalAdd.call(this, type, listener, options);
            };

            const originalPreventDefault = Event.prototype.preventDefault;
            Event.prototype.preventDefault = function() {
                if (this.type === 'keydown' && ['ArrowUp', 'ArrowDown', 'PageUp', 'PageDown', ' ', 'Home', 'End'].includes(this.key)) return;
                if (['wheel', 'mousewheel', 'DOMMouseScroll', 'touchmove'].includes(this.type)) return;
                originalPreventDefault.call(this);
            };
        })();`;

        const scriptEl = document.createElement('script');
        scriptEl.textContent = pageContextLogic;
        if (document.documentElement) {
            document.documentElement.appendChild(scriptEl);
            scriptEl.remove();
        }

        // --- CSS FIX: SURGICAL WRAPPER REMOVAL ---
        const cssOverride = `
            html, body { overflow: auto !important; overflow-x: hidden !important; height: auto !important; overscroll-behavior: auto !important; }
            #page { overflow: visible !important; }
            #smooth-wrapper, #smooth-content, [data-scroll-container], [asscroll-container], [data-scrollbar], #luxy, #butter {
                overflow: visible !important; transform: none !important; position: static !important; height: auto !important; min-height: 0 !important; max-height: none !important; width: auto !important;
            }
        `;

        document.addEventListener("DOMContentLoaded", () => {
            if (typeof GM_addStyle !== 'undefined') GM_addStyle(cssOverride);
            else {
                const style = document.createElement('style');
                style.textContent = cssOverride;
                document.head.appendChild(style);
            }
        });
    };

    const isDomainFixed = fixedDomains.includes(currentDomain);
    if (isDomainFixed) applyScrollFix();

    GM_registerMenuCommand(isDomainFixed ? `❌ Remove fix for ${currentDomain}` : `✅ Fix site scrolling (${currentDomain})`, () => {
        if (isDomainFixed) fixedDomains = fixedDomains.filter(d => d !== currentDomain);
        else fixedDomains.push(currentDomain);
        GM_setValue('saved_scroll_fixes', fixedDomains);
        window.location.reload();
    });
})();