Navigate Gallery images with the mouse wheel
// ==UserScript==
// @name F95Zone Gallery - Mouse Wheel Navigation
// @namespace https://gameil.com/
// @version 2026-09-09
// @description Navigate Gallery images with the mouse wheel
// @author Gameil
// @match https://f95zone.to/threads/*/
// @icon https://www.google.com/s2/favicons?sz=64&domain=f95zone.to
// @grant none
// @run-at document-idle
// @license MIT
// ==/UserScript==
(function () {
"use strict";
let lastWheelTime = 0;
const WHEEL_DELAY = 200;
document.addEventListener(
"wheel",
function (event) {
// Only respond when lightGallery is actually open
const gallery = document.querySelector(".lg");
if (!gallery) {
return;
}
const now = Date.now();
if (now - lastWheelTime < WHEEL_DELAY) {
event.preventDefault();
return;
}
lastWheelTime = now;
const direction = Math.sign(event.deltaY);
if (direction === 0) {
return;
}
const button =
direction > 0
? gallery.querySelector(".lg-next")
: gallery.querySelector(".lg-prev");
if (!button) {
return;
}
event.preventDefault();
event.stopPropagation();
button.click();
},
{
passive: false,
capture: true,
},
);
})();