YouTube - Non-Rounded Design

This script disables YouTube's new rounded corners (reverts back to the layout from 2021.)
As of 22. 12. 2022. See the latest version.
Ask a question, post a review, or report the script.
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// ==UserScript==
// @name         YouTube - Non-Rounded Design
// @version      3.0.0
// @description  This script disables YouTube's new rounded corners (reverts back to the layout from 2021.)
// @author       Magma_Craft
// @license MIT
// @match        *://*.youtube.com/*
// @namespace    https://greasyfork.org/en/users/933798
// @icon         https://www.youtube.com/favicon.ico
// @run-at       document-start
// @grant        none
// ==/UserScript==

// Attributes to remove from <html>
const ATTRS = [
];

// Regular config keys.
const CONFIGS = {
    BUTTON_REWORK: false
}

// Experiment flags.
const EXPFLAGS = {
    kevlar_unavailable_video_error_ui_client: false,
    kevlar_refresh_on_theme_change: false,
    kevlar_watch_cinematics: false,
    kevlar_watch_metadata_refresh: false,
    kevlar_watch_modern_metapanel: false,
    web_amsterdam_playlists: false,
    web_animated_like: false,
    web_button_rework: false,
    web_button_rework_with_live: false,
    web_darker_dark_theme: false,
    web_guide_ui_refresh: false,
    web_modern_ads: false,
    web_modern_buttons: false,
    web_modern_chips: false,
    web_modern_dialogs: false,
    web_modern_playlists: false,
    web_modern_subscribe: false,
    web_rounded_containers: false,
    web_rounded_thumbnails: false,
    web_searchbar_style: "default",
    web_segmented_like_dislike_button: false,
    web_sheets_ui_refresh: false,
    web_snackbar_ui_refresh: false
}

// Player flags
// !!! USE STRINGS FOR VALUES !!!
// For example: "true" instead of true
const PLYRFLAGS = {
    web_rounded_containers: "false",
    web_rounded_thumbnails: "false"
}

class YTP {
    static observer = new MutationObserver(this.onNewScript);

    static _config = {};

    static isObject(item) {
        return (item && typeof item === "object" && !Array.isArray(item));
    }

    static mergeDeep(target, ...sources) {
        if (!sources.length) return target;
        const source = sources.shift();

        if (this.isObject(target) && this.isObject(source)) {
            for (const key in source) {
                if (this.isObject(source[key])) {
                    if (!target[key]) Object.assign(target, { [key]: {} });
                    this.mergeDeep(target[key], source[key]);
                } else {
                    Object.assign(target, { [key]: source[key] });
                }
            }
        }

        return this.mergeDeep(target, ...sources);
    }


    static onNewScript(mutations) {
        for (var mut of mutations) {
            for (var node of mut.addedNodes) {
                YTP.bruteforce();
            }
        }
    }

    static start() {
        this.observer.observe(document, {childList: true, subtree: true});
    }

    static stop() {
        this.observer.disconnect();
    }

    static bruteforce() {
        if (!window.yt) return;
        if (!window.yt.config_) return;

        this.mergeDeep(window.yt.config_, this._config);
    }

    static setCfg(name, value) {
        this._config[name] = value;
    }

    static setCfgMulti(configs) {
        this.mergeDeep(this._config, configs);
    }

    static setExp(name, value) {
        if (!("EXPERIMENT_FLAGS" in this._config)) this._config.EXPERIMENT_FLAGS = {};

        this._config.EXPERIMENT_FLAGS[name] = value;
    }

    static setExpMulti(exps) {
        if (!("EXPERIMENT_FLAGS" in this._config)) this._config.EXPERIMENT_FLAGS = {};

        this.mergeDeep(this._config.EXPERIMENT_FLAGS, exps);
    }

    static decodePlyrFlags(flags) {
        var obj = {},
            dflags = flags.split("&");

        for (var i = 0; i < dflags.length; i++) {
            var dflag = dflags[i].split("=");
            obj[dflag[0]] = dflag[1];
        }

        return obj;
    }

    static encodePlyrFlags(flags) {
        var keys = Object.keys(flags),
            response = "";

        for (var i = 0; i < keys.length; i++) {
            if (i > 0) {
                response += "&";
            }
            response += keys[i] + "=" + flags[keys[i]];
        }

        return response;
    }

    static setPlyrFlags(flags) {
        if (!window.yt) return;
        if (!window.yt.config_) return;
        if (!window.yt.config_.WEB_PLAYER_CONTEXT_CONFIGS) return;
        var conCfgs = window.yt.config_.WEB_PLAYER_CONTEXT_CONFIGS;
        if (!("WEB_PLAYER_CONTEXT_CONFIGS" in this._config)) this._config.WEB_PLAYER_CONTEXT_CONFIGS = {};

        for (var cfg in conCfgs) {
            var dflags = this.decodePlyrFlags(conCfgs[cfg].serializedExperimentFlags);
            this.mergeDeep(dflags, flags);
            this._config.WEB_PLAYER_CONTEXT_CONFIGS[cfg] = {
                serializedExperimentFlags: this.encodePlyrFlags(dflags)
            }
        }
    }
}

window.addEventListener("yt-page-data-updated", function tmp() {
    YTP.stop();
    for (i = 0; i < ATTRS.length; i++) {
        document.getElementsByTagName("html")[0].removeAttribute(ATTRS[i]);
    }
    window.removeEventListener("yt-page-date-updated", tmp);
});

YTP.start();

YTP.setCfgMulti(CONFIGS);
YTP.setExpMulti(EXPFLAGS);
YTP.setPlyrFlags(PLYRFLAGS);

function $(q) {
    return document.querySelector(q);
}

// Fix for Return YouTube Dislike including action buttons
const abtnconfig = {
    unsegmentLikeButton: false,
    noFlexibleItems: true
};

function updateBtns() {
    var watchFlexy = document.querySelector("ytd-watch-flexy");
    var results = watchFlexy.data.contents.twoColumnWatchNextResults.results.results.contents;

    for (var i = 0; i < results.length; i++) {
        if (results[i].videoPrimaryInfoRenderer) {
            var actions = results[i].videoPrimaryInfoRenderer.videoActions.menuRenderer;

            if (abtnconfig.unsegmentLikeButton) {
                if (actions.topLevelButtons[0].segmentedLikeDislikeButtonRenderer) {
                    var segmented = actions.topLevelButtons[0].segmentedLikeDislikeButtonRenderer;
                    actions.topLevelButtons.splice(0, 1);
                    actions.topLevelButtons.unshift(segmented.dislikeButton);
                    actions.topLevelButtons.unshift(segmented.likeButton);
                }
            }

            if (abtnconfig.noFlexibleItems) {
                for (var i = 0; i < actions.flexibleItems.length; i++) {
                    actions.topLevelButtons.push(actions.flexibleItems[i].menuFlexibleItemRenderer.topLevelButton);
                }

                delete actions.flexibleItems
            }
        }
    }

    var temp = watchFlexy.data;
    watchFlexy.data = {};
    watchFlexy.data = temp;
}

document.addEventListener("yt-page-data-updated", (e) => {
    if (e.detail.pageType == "watch") {
        updateBtns();
    }
});

addEventListener('yt-page-data-updated', function() {
    if(!location.pathname.startsWith('/watch')) return;

    var lds = $('ytd-video-primary-info-renderer div#top-level-buttons-computed');
    var like = $('ytd-video-primary-info-renderer div#segmented-like-button > ytd-toggle-button-renderer');
    var share = $('ytd-video-primary-info-renderer div#top-level-buttons-computed > ytd-segmented-like-dislike-button-renderer + ytd-button-renderer');

    lds.insertBefore(like, share);

    like.setAttribute('class', like.getAttribute('class').replace('ytd-segmented-like-dislike-button-renderer', 'ytd-menu-renderer force-icon-button'));
    like.removeAttribute('is-paper-button-with-icon');
    like.removeAttribute('is-paper-button');
    like.setAttribute('style-action-button', '');
    like.setAttribute('is-icon-button', '');
    like.querySelector('a').insertBefore(like.querySelector('yt-formatted-string'), like.querySelector('tp-yt-paper-tooltip'));
    try { like.querySelector('paper-ripple').remove(); } catch(e) {}
    var paper = like.querySelector('tp-yt-paper-button');
    paper.removeAttribute('style-target');
    paper.removeAttribute('animated');
    paper.removeAttribute('elevation');
    like.querySelector('a').insertBefore(paper.querySelector('yt-icon'), like.querySelector('yt-formatted-string'));
    paper.outerHTML = paper.outerHTML.replace('<tp-yt-paper-button ', '<yt-icon-button ').replace('</tp-yt-paper-button>', '</yt-icon-button>');
    paper = like.querySelector('yt-icon-button');
    paper.querySelector('button#button').appendChild(like.querySelector('yt-icon'));

    var dislike = $('ytd-video-primary-info-renderer div#segmented-dislike-button > ytd-toggle-button-renderer');
    lds.insertBefore(dislike, share);
    $('ytd-video-primary-info-renderer ytd-segmented-like-dislike-button-renderer').remove();
    dislike.setAttribute('class', dislike.getAttribute('class').replace('ytd-segmented-like-dislike-button-renderer', 'ytd-menu-renderer force-icon-button'));
    dislike.removeAttribute('has-no-text');
    dislike.setAttribute('style-action-button', '');
    var dlabel = document.createElement('yt-formatted-stringx');
    dlabel.setAttribute('id', 'text');
    if(dislike.getAttribute('class').includes('style-default-active'))
        dlabel.setAttribute('class', dlabel.getAttribute('class').replace('style-default', 'style-default-active'));
    dislike.querySelector('a').insertBefore(dlabel, dislike.querySelector('tp-yt-paper-tooltip'));

    $('ytd-video-primary-info-renderer').removeAttribute('flex-menu-enabled');
});

// CSS adjustments and UI fixes
(function() {
ApplyCSS();
function ApplyCSS() {
var styles = document.createElement("style");
styles.innerHTML=`
    #cinematics.ytd-watch-flexy {
    display: none;
    }

    div#clarify-box.attached-message.style-scope.ytd-watch-flexy {
    margin-top: 0px;
    }

    ytd-clarification-renderer.style-scope.ytd-item-section-renderer {
    border: 1px solid;
    border-color: #0000001a;
    border-radius: 0px;
    }

    ytd-clarification-renderer.style-scope.ytd-watch-flexy {
    border: 1px solid;
    border-color: #0000001a;
    border-radius: 0px;
    }

    yt-formatted-string.description.style-scope.ytd-clarification-renderer {
    font-size: 1.4rem;
    }

    div.content-title.style-scope.ytd-clarification-renderer {
    padding-bottom: 4px;
    }

    div.ytp-sb-subscribe.ytp-sb-rounded, .ytp-sb-unsubscribe.ytp-sb-rounded {
    border-radius: 2px;
    }

    .yt-spec-button-shape-next--size-m {
    background-color: transparent;
    padding-right: 6px;
    }

    .yt-spec-button-shape-next--mono.yt-spec-button-shape-next--tonal {
    background-color: transparent;
    }

    div.cbox.yt-spec-button-shape-next--button-text-content {
    display: none;
    }

    div.yt-spec-button-shape-next__secondary-icon {
    display: none;
    }

    div#ytp-id-18.ytp-popup,ytp-settings-menu.ytp-rounded-menu {
    border-radius: 2px;
    }

    div.branding-context-container-inner.ytp-rounded-branding-context {
    border-radius: 2px;
    }

    div.iv-card.iv-card-video.ytp-rounded-info {
    border-radius: 0px;
    }

    div.iv-card.iv-card-playlist.ytp-rounded-info {
    border-radius: 0px;
    }

    div.iv-card.iv-card-channel.ytp-rounded-info {
    border-radius: 0px;
    }

    div.iv-card.ytp-rounded-info {
    border-radius: 0px;
    }

    .ytp-tooltip.ytp-rounded-tooltip.ytp-text-detail.ytp-preview, .ytp-tooltip.ytp-rounded-tooltip.ytp-text-detail.ytp-preview .ytp-tooltip-bg {
    border-radius: 0px;
    }

    .ytp-ce-video.ytp-ce-medium-round, .ytp-ce-playlist.ytp-ce-medium-round, .ytp-ce-medium-round .ytp-ce-expanding-overlay-background {
    border-radius: 0px;
    }

    div.ytp-autonav-endscreen-upnext-thumbnail.rounded-thumbnail {
    border-radius: 0px;
    }

    button.ytp-autonav-endscreen-upnext-button.ytp-autonav-endscreen-upnext-cancel-button.ytp-autonav-endscreen-upnext-button-rounded {
    border-radius: 2px;
    }

    a.ytp-autonav-endscreen-upnext-button.ytp-autonav-endscreen-upnext-play-button.ytp-autonav-endscreen-upnext-button-rounded {
    border-radius: 2px;
    }

    .ytp-videowall-still-image {
    border-radius: 0px;
    }`
document.head.appendChild(styles);
}
})();