Reddit Multi Column

reddit-multi-column.user.js

// ==UserScript==
// @name         Reddit Multi Column
// @namespace    https://gist.github.com/c6p/463892bb243f611f2a3cfa4268c6435e
// @version      0.2.6
// @description  Multi column layout for reddit redesign
// @author       Can Altıparmak
// @homepageURL  https://gist.github.com/c6p/463892bb243f611f2a3cfa4268c6435e
// @match        https://www.reddit.com/*
// @match        https://new.reddit.com/*
// @grant        none
// @downloadURL https://update.greasyfork.org/scripts/371490/Reddit%20Multi%20Column.user.js
// @updateURL https://update.greasyfork.org/scripts/371490/Reddit%20Multi%20Column.meta.js
// ==/UserScript==
/* jshint esversion: 6 */

(function() {
    'use strict';
    const MIN_WIDTH = 400;
    const COLUMNS = 4;
    let columns = COLUMNS;
    let cleanup = null;

    let parent = null;
    const cardIcon = () => document?.querySelector('shreddit-sort-dropdown[header-text="View"]')?.shadowRoot?.querySelector('svg');
    const shouldClean =(icon) => icon === undefined ? false : icon.getAttribute('icon-name') !== "view-card-outline";
    cleanup = shouldClean()

    let postMap = new Map()

    const indexOfSmallest = function (a) {
        let lowest = 0;
        for (let i = 1; i<a.length; i++) {
            if (a[i] < (a[lowest]-1)) lowest = i;
        }
        return lowest;
    };

    const makeLayout = function(changes=[]) {
        if (cleanup) return;
        if (!parent) return;

        if (parent.style.position !== "relative") {
            document.querySelector("main").style.maxWidth = "100%";
            const mainContainer = document.querySelector("div.main-container");
            mainContainer.className = [...mainContainer.classList].filter(c => !c.includes(":grid-cols-")).join(" ") // make wide
            document.querySelector("div.subgrid-container").classList.remove("m:w-[1120px]") // make wide
            document.getElementById("right-sidebar-container").style.display = "none" // hide sidebar
            parent.style.position = "relative"
        }

        const cols = Math.floor(parent.offsetWidth / MIN_WIDTH);
        columns = cols;
        const WIDTH = Math.floor((100-columns)/columns);


        const nodes = [...parent.querySelectorAll("article, shreddit-ad-post, faceplate-partial").values()]
        for (const article of nodes) {
            const key = article.ariaLabel
            if (key === null) /* faceplate-partial */ {
            } else if (key in postMap) {
                const post = postMap[key]
                if (post.height !== article.offsetHeight) {
                     post.height = article.offsetHeight
                }
            } else {
                postMap.set(key, {height:article.offsetHeight, col:0, top:0})
            }
        }

        let tops = Array(columns).fill(0);
        for (const post of postMap.values()) {
            post.col = indexOfSmallest(tops)
            post.top = tops[post.col]
            tops[post.col] += post.height
        }
        const height = Math.max(...tops)
        if (height) {
            parent.style.height = height + 500 + "px"
        }

        for (const article of nodes) {
            const key = article.ariaLabel
            const {col, top} = postMap.get(key) ?? {col:0, top:tops[0]}
            article.setAttribute("style", cleanup ? "" : `position:absolute; width:${WIDTH}%; top:${top}px; left:${col*(WIDTH+1)}%`)
        }

        for (const batch of parent.querySelectorAll("faceplate-batch").values()) {
            if (!batch.style.height) {
                batch.style.height = [...batch.childNodes].reduce((height,c) => height + c.clientHeight, 0) + "px"
            }
        }
    };

    const setLayout = function(changes, observer) {
        const c = shouldClean(cardIcon());
        if (c !== cleanup) {
            cleanup = c;
            window.requestAnimationFrame(makeLayout)
        }
    };

    const requestLayout = () => window.requestAnimationFrame(makeLayout)
    const pageChange = new MutationObserver(requestLayout);
    window.addEventListener('resize', requestLayout);
    window.addEventListener('scrollend', requestLayout);
    const layoutSwitch = new MutationObserver(setLayout);

    const watch = function(changes, observer) {
        postMap = new Map()
        parent = document.querySelector("article + hr + faceplate-partial").parentNode
        if (parent === null) return;
        pageChange.observe(parent, {childList: true});
        const timeout = setTimeout(() => {
            const icon = cardIcon();
            if (icon !== undefined) {
                clearTimeout(timeout);
                layoutSwitch.observe(icon, {attributes: true});
            }
        })
        window.requestAnimationFrame(makeLayout);
    };

    const apply = new MutationObserver(watch);
    const app = document.querySelector("shreddit-app")
    apply.observe(app, {attributes: true});
    watch();
})();

this broke today for me

It seems to be working for me. @elmonteanalogo could you share a subreddit that it does not work, so I can check?

It seems to be working intermitently, it didn't work yesterday but it worked this morning. Not working right now though, in any subreddit or anywhere in the website. Been using it for about a year and its the first time it gives me issues. but I guess it could be on my end, I havent downloaded a different browser to test (I use yandex browser)

Maybe reddit is doing A/B testing with the layout, breaking the script. I can't reproduce for now.

could you do this for twitter?

@dmax511 I've looked into it, but Twitter is cycling element content with scroll position. It is possible, however very hard, with this approach. So I can't make any promises.

ok thanks for looking into it

it doesn't seem to work anymore. Is there a fix for it ?

it doesn't seem to work anymore. Is there a fix for it ?

I started using this userscript Reddit 2023 Ui Revert to forward www.reddit.com to new.reddit.com, then add:
// @match https://new.reddit.com/*
to the top of Reddit Multi Column script and it will work again

@Krokette @drhouse I've updated it to work with the latest Reddit design. Hopefully, it works now.

Sorry for the late fix. Recently, I've been on a metered connection and have had trouble finding the time.

@c6p good job on the update, I installed it from Greasyfork

@c6p Awesome ! Thank you, the design is pretty neat ! And the performance seems to be better than before ♥

Hey this might just be a "me" thing but this is so close to doing what I want BUT I'm having this issue where, as I scroll down my feed, each post will swap places around on the screen so that one second a post is in the right column and then the next it's in center (I have 3 columns). This gets confusing very quickly with how often they switch places, in that I'll see a post I want to click but by the time the page "settles" it'll be shifted to a different part of the page. any ideas?

as I scroll down my feed, each post will swap places around on the screen so that one second a post is in the right column and then the next it's in center (I have 3 columns).

+1 having same issue

@lolDayus @drhouse noted. While threads are coming, it re-layouts. But since some thread images are not yet loaded, their height changes. So does their position.

When I have the time, I'm going to try to wait until a thread's content is loaded, to make the layout more stable. Or just keep their assigned rows and columns, even if it makes some columns longer than others.

v0.2.1released

• Add new.reddit.com
• Fix left sidebar scrolling
• Fix article jumpiness

v0.2.2 released

• Fix subreddits that use faceplate-batch elements to virtualize loaded articles

v0.2.3

• Fix empty page due to reddit hiding too far away articles
  • Fixed: unbalanced columns

Doesn't work anymore

Doesn't work anymore

Yeah, I think there was an update on Reddit's end. It doesn't work across all browsers now.

v0.2.4

• Fix: update main element type

It stopped working

It seems to be working well in Chrome-based browsers now, but not on Firefox-based browsers. Switching from Violentmonkey to Tampermonkey didn't help.

v0.2.5

• Fix: filter-out :grid-col- classes from main-container to make it wide

v0.2.6

• Fix: ads breaking column layout

When in a feed and then pressing the back arrow next to the subreddit name to go back, the scroll position on the home page is lost. Using the Reddit app and website without this script, pressing the back button returns the user to the same scroll position. Is there a way to remember scroll position?