Fix Home, End, Page Up and Page Down keys for OpenAI broken chats

For some OpenAI chats the Home, End, Page Up and Page Down keys stop working, this script fixes the problem

2024-02-27 या दिनांकाला. सर्वात नवीन आवृत्ती पाहा.

Ask a question, post a review, or report the script.

Wrap lines

// ==UserScript==
// @name         Fix Home, End, Page Up and Page Down keys for OpenAI broken chats
// @description  For some OpenAI chats the Home, End, Page Up and Page Down keys stop working, this script fixes the problem
// @author       NWP
// @namespace    https://greatest.deepsurf.us/users/877912
// @version      0.1
// @license      MIT
// @match        https://chat.openai.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    document.addEventListener('keydown', function(event) {
        const scrollableContainer = Array.from(document.querySelectorAll('div')).find(div => /^react-scroll-to-bottom--css-\S+$/.test(div.className));

        if (scrollableContainer) {
            if (event.key === 'Home') {
                event.preventDefault();
                scrollableContainer.scroll(0, 0);
            } else if (event.key === 'End') {
                event.preventDefault();
                scrollableContainer.scroll(0, scrollableContainer.scrollHeight);
            } else if (event.key === 'PageUp') {
                event.preventDefault();
                const scrollAmount = scrollableContainer.clientHeight * 0.75;
                scrollableContainer.scrollBy(0, -scrollAmount);
            } else if (event.key === 'PageDown') {
                event.preventDefault();
                const scrollAmount = scrollableContainer.clientHeight * 0.75;
                scrollableContainer.scrollBy(0, scrollAmount);
            }
        } else {
            console.error("No scrollable container found with the specified class pattern.");
        }
    });
})();