Reddit Expand Post

Expand posts on Reddit feeds and dynamically detect new posts to expand

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Reddit Expand Post
// @namespace   https://rant.li/boson
// @match       *://*.reddit.com/*
// @grant       none
// @version     1.7
// @author      Boson
// @description Expand posts on Reddit feeds and dynamically detect new posts to expand
// @license     GNU AGPLv3
// ==/UserScript==
(function () {
    'use strict';

    let expandingInProgress = false;

    function detectAndClickExpandos() {
        const expandos = document.querySelectorAll('.expando-button.collapsed');
        if (expandos.length === 0 || expandingInProgress) return;
        expandingInProgress = true;
        let delay = 0;
        const expandosArray = Array.from(expandos);
        const postsToExpand = expandosArray.slice(0, 10);

        if (postsToExpand.length > 0) {
            postsToExpand.forEach((expando, index) => {
                if (!expando.classList.contains('clicked')) {
                    setTimeout(() => {
                        expando.click();
                        expando.classList.add('clicked');
                    }, delay);
                    delay += 1000;
                }
            });
        }

        setTimeout(() => {
            expandingInProgress = false;
        }, delay);
    }

    function setupIntersectionObserver() {
        const observer = new IntersectionObserver((entries) => {
            entries.forEach(entry => {
                if (entry.isIntersecting && !entry.target.classList.contains('expanded')) {
                    detectAndClickExpandos();
                    entry.target.classList.add('expanded');
                }
            });
        }, { threshold: 0.5 });

        const posts = document.querySelectorAll('.expando-button.collapsed');
        posts.forEach(post => observer.observe(post));
    }

    window.addEventListener('load', () => {
        detectAndClickExpandos();
        setupIntersectionObserver();
    });

    setInterval(() => {
        detectAndClickExpandos();
    }, 1000);
})();