Miniplayer button

Adds the miniplayer button next to the YouTube logo.

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.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

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         Miniplayer button
// @namespace    http://tampermonkey.net/
// @version      2026-06-26
// @description  Adds the miniplayer button next to the YouTube logo.
// @author       EiskaffeAffection
// @match        *://*.youtube.com/*
// @exclude      *://music.youtube.com/*
// @exclude      *://*.music.youtube.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    const style = document.createElement('style');
    style.textContent = `
        #miniplayer-button-container {
            padding-left: 10px;
            display: flex;
            align-items: center;
        }

        #miniplayer-button {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            cursor: pointer;
            transition: background-color 0.2s ease;
            background-color: #272727;
        }
        #miniplayer-button:hover {
            background-color: #525252;
        }
        #miniplayer-button svg {
            fill: #FFFFFF;
            transition: fill 0.2s ease;
        }

        html:not([dark]) ytd-masthead:not([theater]) #miniplayer-button,
        html:not([dark]) ytd-masthead:not([dark]) #miniplayer-button {
            background-color: #F2F2F2;
        }
        html:not([dark]) ytd-masthead:not([theater]) #miniplayer-button:hover,
        html:not([dark]) ytd-masthead:not([dark]) #miniplayer-button:hover {
            background-color: #D9D9D9;
        }
        html:not([dark]) ytd-masthead:not([theater]) #miniplayer-button svg,
        html:not([dark]) ytd-masthead:not([dark]) #miniplayer-button svg {
            fill: #000000;
        }
    `;
    document.head.appendChild(style);

    const observer = new MutationObserver(() => {
        const isWatchPage = window.location.pathname.startsWith('/watch');
        const existingContainer = document.getElementById("miniplayer-button-container");

        if (!isWatchPage) {
            if (existingContainer) {
                existingContainer.remove();
            }
            return;
        }

        if (existingContainer) {
            return;
        }

        const strt = document.querySelector("#start.ytd-masthead");
        if (!strt) {
            return;
        }

        const container = document.createElement('div');
        container.id = "miniplayer-button-container";

        const btn = document.createElement('div');
        btn.id = "miniplayer-button";

        btn.addEventListener('click', () => {
            const player = document.querySelector('.html5-video-player');

            if (player) {
                const keyEvent = new KeyboardEvent('keydown', {
                    key: 'i',
                    code: 'KeyI',
                    keyCode: 73,
                    which: 73,
                    bubbles: true,
                    cancelable: true
                });
                player.dispatchEvent(keyEvent);
            }
        });

        const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
        svg.setAttribute("height", "24");
        svg.setAttribute("viewBox", "0 0 24 24");
        svg.setAttribute("width", "24");

        const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
        path.setAttribute("d", "M21.20 3.01C21.66 3.05 22.08 3.26 22.41 3.58C22.73 3.91 22.94 4.33 22.98 4.79L23 5V19C23.00 19.49 22.81 19.97 22.48 20.34C22.15 20.70 21.69 20.93 21.20 20.99L21 21H3L2.79 20.99C2.30 20.93 1.84 20.70 1.51 20.34C1.18 19.97 .99 19.49 1 19V13H3V19H21V5H11V3H21L21.20 3.01ZM1.29 3.29C1.10 3.48 1.00 3.73 1.00 4C1.00 4.26 1.10 4.51 1.29 4.70L5.58 9H3C2.73 9 2.48 9.10 2.29 9.29C2.10 9.48 2 9.73 2 10C2 10.26 2.10 10.51 2.29 10.70C2.48 10.89 2.73 11 3 11H9V5C9 4.73 8.89 4.48 8.70 4.29C8.51 4.10 8.26 4 8 4C7.73 4 7.48 4.10 7.29 4.29C7.10 4.48 7 4.73 7 5V7.58L2.70 3.29C2.51 3.10 2.26 3.00 2 3.00C1.73 3.00 1.48 3.10 1.29 3.29ZM19.10 11.00L19 11H12L11.89 11.00C11.66 11.02 11.45 11.13 11.29 11.29C11.13 11.45 11.02 11.66 11.00 11.89L11 12V17C10.99 17.24 11.09 17.48 11.25 17.67C11.42 17.85 11.65 17.96 11.89 17.99L12 18H19L19.10 17.99C19.34 17.96 19.57 17.85 19.74 17.67C19.90 17.48 20.00 17.24 20 17V12L19.99 11.89C19.97 11.66 19.87 11.45 19.70 11.29C19.54 11.13 19.33 11.02 19.10 11.00ZM13 16V13H18V16H13Z");

        svg.appendChild(path);
        btn.appendChild(svg);
        container.appendChild(btn);
        strt.appendChild(container);
    });

    observer.observe(document.body, {
        subtree: true,
        childList: true,
    });
})();