YouTube - Proper Description

Description below the video with proper open/close toggle, instead of a side bar.

Από την 17/05/2022. Δείτε την τελευταία έκδοση.

θα χρειαστεί να εγκαταστήσετε μια επέκταση όπως το Tampermonkey, το Greasemonkey ή το Violentmonkey για να εγκαταστήσετε αυτόν τον κώδικα.

θα χρειαστεί να εγκαταστήσετε μια επέκταση όπως το Tampermonkey ή το Violentmonkey για να εγκαταστήσετε αυτόν τον κώδικα.

θα χρειαστεί να εγκαταστήσετε μια επέκταση όπως το Tampermonkey ή το Violentmonkey για να εγκαταστήσετε αυτόν τον κώδικα.

θα χρειαστεί να εγκαταστήσετε μια επέκταση όπως το Tampermonkey ή το Userscripts για να εγκαταστήσετε αυτόν τον κώδικα.

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

Θα χρειαστεί να εγκαταστήσετε μια επέκταση διαχείρισης κώδικα χρήστη για να εγκαταστήσετε αυτόν τον κώδικα.

(Έχω ήδη έναν διαχειριστή κώδικα χρήστη, επιτρέψτε μου να τον εγκαταστήσω!)

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.

(Έχω ήδη έναν διαχειριστή στυλ χρήστη, επιτρέψτε μου να τον εγκαταστήσω!)

// ==UserScript==
// @name         YouTube - Proper Description
// @namespace    q1k
// @version      1.2.0
// @description  Description below the video with proper open/close toggle, instead of a side bar.
// @author       q1k
// @match        *://www.youtube.com/*
// @grant        none
// @run-at       document-end
// ==/UserScript==

function findElement(selector) {
    return new Promise(function(resolve) {
        if (document.querySelector(selector)) {
            return resolve(document.querySelector(selector));
        }
        const observer = new MutationObserver(function(mutations) {
            if (document.querySelector(selector)) {
                resolve(document.querySelector(selector));
                observer.disconnect();
            }
        });
        observer.observe(document, {
            childList: true,
            subtree: true
        });
    });
}
function watchExistingButtonForChange(oldbutton, newbutton) {
    var mo = new MutationObserver(function(mutations) {
        if(oldbutton.innerText.trim().length>0) {
            newbutton.querySelector('.desc_text').innerText = oldbutton.innerText.replace("...","").trim();
            mo.disconnect();
        }
    });
    mo.observe(oldbutton, {
        childList: true,
        subtree: true,
        characterData: true
    });
}
var more, less;
var description, button_current;
function addButton(open, idname, selector) {
    button_current = document.querySelector(selector);
    if(open) { more = button_current; }
    else { less = button_current; }
    let button = document.createElement("div");
    //button.setAttribute("id", idname);
    button.setAttribute("class","desc_toggles "+idname);
    button.innerHTML = "<div class='desc_text more-button style-scope ytd-video-secondary-info-renderer'></div>";
    button.querySelector(".desc_text").innerText = button_current.innerText.replace("...","").trim();
    description = button_current.closest("ytd-expander");
    description.appendChild(button);
    if(open){
        button.addEventListener('click', function(e) {
            description.removeAttribute("collapsed");
            more.setAttribute("hidden","");
            less.removeAttribute("hidden");
        });
    } else {
        button.addEventListener('click', function(e) {
            description.setAttribute("collapsed","");
            less.setAttribute("hidden","");
            more.removeAttribute("hidden");
        });
    }
    if(button.innerText.trim().length==0) {
        watchExistingButtonForChange(button_current, button);
    }
}

var styles = document.createElement("style");
styles.innerHTML=`
ytd-watch-metadata { display: none !important; }
#meta-contents[hidden], #info-contents[hidden]{ display: block !important; }
#meta tp-yt-paper-button#more, #meta tp-yt-paper-button#less, #meta ytd-expander[collapsed] .description_close, #meta ytd-expander:not([collapsed]) .description_open, #meta ytd-expander tp-yt-paper-button.ytd-expander[hidden] ~ tp-yt-paper-button.ytd-expander[hidden] ~ div.desc_toggles { display: none !important; }
#meta .description_open, #meta .description_close { display: inline-block; cursor: pointer; }
ytd-video-primary-info-renderer[use-yt-sans20-light] .title.ytd-video-primary-info-renderer { line-height:2.6rem !important; font-weight:400 !important; font-size:1.8rem !important; font-family:"Roboto",sans-serif !important; }

`;
/*
var styles_alt = document.createElement("style");
    styles_alt.innerHTML=`
#meta ytd-video-secondary-info-renderer, #primary #meta .desc_toggles { border-color: rgba(0,0,0,0.125); padding-bottom: 0; border-bottom: none; }
[dark] #meta ytd-video-secondary-info-renderer, [dark] #primary #meta .desc_toggles { border-color: rgba(255,255,255,0.125); }

#meta ytd-expander.ytd-video-secondary-info-renderer, #meta ytd-expander.ytd-video-secondary-info-renderer > * { margin-left: 0; }
#meta .desc_toggles { width: 100%; border-top: 1px solid; border-radius: 0; text-align: center; cursor: pointer; margin-top: 1em; background: linear-gradient(rgba(0,0,0,0.02), transparent); }
[dark] #meta .desc_toggles { background: linear-gradient(rgba(255,255,255,0.02), transparent); }
#meta .desc_toggles:hover { background: rgba(0,0,0,0.03); }
[dark] #meta .desc_toggles:hover { background: rgba(255,255,255,0.03); }
#meta .desc_toggles .desc_text { margin: 0; padding: 4px; }
`;*/
document.head.appendChild(styles);

findElement("ytd-expander #content ~ tp-yt-paper-button#more").then(function(el){
    addButton(true, "description_open", "#meta ytd-video-secondary-info-renderer ytd-expander #content ~ tp-yt-paper-button#more");
});
findElement("ytd-expander #content ~ tp-yt-paper-button#less").then(function(el){
    addButton(false, "description_close", "#meta ytd-video-secondary-info-renderer ytd-expander #content ~ tp-yt-paper-button#less");
});
findElement("#info ytd-video-primary-info-renderer").then(function(el){
    el.removeAttribute("use-yt-sans20-light");
});