YouTube Channel Playlist Button

Adds a button linking to the channel's playlist on YouTube channel pages
Versione datata 23/09/2025. Vedi la nuova versione l'ultima versione.
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// ==UserScript==
// @name         YouTube Channel Playlist Button
// @namespace    https://greatest.deepsurf.us/en/users/703184-floriegl
// @version      1.3
// @description  Adds a button linking to the channel's playlist on YouTube channel pages
// @author       floriegl
// @match        https://www.youtube.com/*
// @license      MIT
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    let actionModel = undefined;
    let channelId = undefined;

    const readdObserver = new MutationObserver(() => {
        if (!document.getElementById('channel-playlist-link')) {
            addPlaylistButton();
        }
    });

    function addPlaylistButton() {
        readdObserver.disconnect();
        readdObserver.observe(actionModel, { childList: true, subtree: false });

        if (!document.getElementById('channel-playlist-link')) {
            const link = document.createElement("a");
            link.className = "ytFlexibleActionsViewModelAction";
            link.id = "channel-playlist-link";
            link.style.textDecoration = "none";

            const buttonView = document.createElement("button-view-model");
            buttonView.className = "ytSpecButtonViewModelHost";
            link.appendChild(buttonView);

            const button = document.createElement("button");
            button.className = "yt-spec-button-shape-next yt-spec-button-shape-next--outline yt-spec-button-shape-next--mono yt-spec-button-shape-next--size-m yt-spec-button-shape-next--enable-backdrop-filter-experiment";
            button.setAttribute("aria-label", "Go to Channel Playlist");
            buttonView.appendChild(button);

            const buttonText = document.createElement("div");
            buttonText.className = "yt-spec-button-shape-next__button-text-content";
            buttonText.textContent = "Channel Playlist";
            button.appendChild(buttonText);

            const actionModelRow = actionModel.querySelector('.ytFlexibleActionsViewModelActionRow');
            if (actionModelRow) {
                link.classList.add("ytFlexibleActionsViewModelActionRowAction");
                actionModelRow.appendChild(link);
            } else {
                actionModel.appendChild(link);
            }
        }

        document.getElementById('channel-playlist-link').href = `/playlist?list=UU${channelId.substring(2)}`;
    }

    window.addEventListener('yt-navigate-finish', async (e) => {
         if (e.detail && e.detail.pageType === 'channel' && e.detail.endpoint && e.detail.endpoint.browseEndpoint && typeof e.detail.endpoint.browseEndpoint.browseId === 'string' && e.detail.endpoint.browseEndpoint.browseId.startsWith('UC')) {
            channelId = e.detail.endpoint.browseEndpoint.browseId;
            actionModel = document.querySelector('yt-flexible-actions-view-model');
            if (!actionModel) {
                actionModel = await new Promise((resolve) => {
                    new MutationObserver((mutations, obs) => {
                        const item = document.querySelector('yt-flexible-actions-view-model');
                        if (item) {
                            resolve(item);
                            obs.disconnect();
                        }
                    }).observe(document, { childList: true, subtree: true });
                });
            }
            addPlaylistButton();
        } else {
            channelId = null;
            readdObserver.disconnect();
        }
    });
    window.addEventListener("resize", () => {
        if (actionModel !== document.querySelector('yt-flexible-actions-view-model')) {
            actionModel = document.querySelector('yt-flexible-actions-view-model');
            if (channelId && actionModel) {
                addPlaylistButton();
            }
        }
    });
})();