YouTube - Custom Default Settings

live chat, transcript, auto play count

As of 29. 12. 2024. See the latest version.

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         YouTube - Custom Default Settings
// @name:en      YouTube - Custom Default Settings
// @name:ja      YouTube - デフォルト設定の変更
// @namespace    http://tampermonkey.net/
// @version      2024-12-29
// @description  live chat, transcript, auto play count
// @description:en live chat, transcript, auto play count
// @description:ja デフォルト設定の変更
// @author       ぐらんぴ
// @match        https://www.youtube.com/*
// @icon         https://www.youtube.com/favicon.ico
// @grant        none
// @license      MIT
// ==/UserScript==

const settings = [
    // page: "watch"
    { name: 'liveChat',      default: 'hide', /* show or hide */ },
    { name: 'transcript',    default: 'hide', /* show or hide */ },
    { name: 'autoPlayCount', default: '0', /* 0 or more */ },
    { name: 'annotation',    default: 'hide', /* show or hide */ },
    { name: 'quality',       default: '1080', /* 144, 240, 360, 480, 720, 1080 */ },
    // // page: "all"
    { name: 'Promo', default: 'hide', /* show or hide */ },
];
document.addEventListener('yt-page-data-fetched', e =>{
    let res = e.detail.pageData.response
    // console.log(e.detail);
    console.log(e.detail.pageData)
    settings.forEach(s =>{
        try{
            // page: "watch"
            if(s.name == 'liveChat' && s.default == 'hide') res.contents.twoColumnWatchNextResults.conversationBar.liveChatRenderer.initialDisplayState = 'LIVE_CHAT_DISPLAY_STATE_COLLAPSED';
            if(s.name == 'transcript' && s.default == 'show'){
                let engagementPanels = res.engagementPanels
                engagementPanels.forEach(i =>{
                    if(i.engagementPanelSectionListRenderer.targetId == 'engagement-panel-searchable-transcript') i.engagementPanelSectionListRenderer.visibility = 'ENGAGEMENT_PANEL_VISIBILITY_EXPANDED';

                });
            }
            if(s.name == 'autoPlayCount'){
                res.playerOverlays.playerOverlayRenderer.autoplay.playerOverlayAutoplayRenderer.countDownSecs = s.default
                res.playerOverlays.playerOverlayRenderer.autoplay.playerOverlayAutoplayRenderer.countDownSecsForFullscreen = s.default
            }
            if(s.name == 'annotation' && s.default == 'hide') document.querySelector(".annotation.annotation-type-custom").style.display = "none" // https://i.ytimg.com/an/
            if(s.name == 'quality'){
                for (let i = 0; i < localStorage.length; i++) {
                    let key = localStorage.key(i);
                    if (key === "yt-player-quality") {
                        let data = localStorage.getItem(key);
                        // console.log(data);

                        let obj = JSON.parse(data);
                        let innerData = JSON.parse(obj.data);

                        innerData.quality = s.default;
                        obj.data = JSON.stringify(innerData);

                        let newData = JSON.stringify(obj);
                        // console.log(newData);

                        localStorage.setItem(key, newData);
                    }
                }

            }
            // playList
            // page: "all"
            if(s.name == 'promo' && s.default == 'hide'){
                // promo
                e.detail.pageData.playerResponse.messages[0].mealbarPromoRenderer.isVisible = false;
            }
        }catch{}
    });
});