SoundCloud: Additional "Add to playlist" button

Adds an additional "Add to Playlist" buttons for easier and quicker access.
Versione datata 25/04/2025. Vedi la nuova versione l'ultima versione.
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// ==UserScript==
// @name         SoundCloud: Additional "Add to playlist" button
// @description  Adds an additional "Add to Playlist" buttons for easier and quicker access.
// @version      0.9
// @author       iammordaty
// @namespace    https://github.com/iammordaty
// @match        https://soundcloud.com/*
// @license      MIT
// @grant        none
// @icon         https://a-v2.sndcdn.com/assets/images/sc-icons/favicon-2cadd14bdb.ico
// ==/UserScript==

// This must be unique on the page
const ANIMATION_NAME = 'IAMMORDATY-SC-AATPB-ON-NODE-INSTERTED';

// https://davidwalsh.name/detect-node-insertion
document.head.insertAdjacentHTML('beforeend', `
    <style>
    @keyframes ${ANIMATION_NAME} {
        from { opacity: 0.99; }
        to { opacity: 1; }
    }

    .soundList__item, .listenEngagement__footer, .trackList__item, .historicalPlays__item {
        animation-duration: 0.001s;
        animation-name: ${ANIMATION_NAME};
    }
    </style>
`);

const BUTTON_CLASS_NAMES = [
    'sc-button-medium',
    'sc-button-secondary',
    'sc-button-small',
    'sc-button-icon',
    'sc-button',
    'sc-button-responsive',
];

const getButtonClassList = refNodeClassList => {
    const classList = BUTTON_CLASS_NAMES.filter(value => refNodeClassList.includes(value));

    return [ ...classList, 'sc-button-add-to-playlist', 'sc-button-addtoset' ];
}

const createButton = (container, refNode) => {
    const button = document.createElement('button');

    button.setAttribute('role', 'button');

    const classList = getButtonClassList([ ...refNode.classList ]);
    button.classList.add(...classList);

    // button.innerHTML = 'Add to Playlist';
    button.setAttribute('title', 'Add this track to Playlist');

    const innerDiv = document.createElement('div');

    const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
    svg.setAttribute('viewBox', '0 0 16 16');
    svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
    svg.setAttribute('aria-hidden', 'true');

    const path = document.createElementNS('http://www.w3.org/2000/svg', 'path');
    path.setAttribute('d', 'M3.25 7V4.75H1v-1.5h2.25V1h1.5v2.25H7v1.5H4.75V7h-1.5zM9 4.75h6v-1.5H9v1.5zM15 9.875H1v-1.5h14v1.5zM1 15h14v-1.5H1V15z');
    path.setAttribute('fill', 'currentColor');

    svg.appendChild(path);
    innerDiv.appendChild(svg);

    button.appendChild(innerDiv);

    button.addEventListener('click', () => {
        // Ignoring case sensitiveness in querySelectorAll: https://stackoverflow.com/a/38399344
        container.querySelector('button[aria-label="more" i]').click();

        document.querySelector('button[title="add to playlist" i]').click();
    }, false);

    return button;
}


const insertAfter = (button, refButton) => refButton.parentNode.insertBefore(button, refButton);

const onNodeInsert = ({ animationName, target: container }) => {
    if (animationName !== ANIMATION_NAME) {
        return;
    }

    const refButton = container.querySelector('.sc-button-more');

    if (!refButton) {
        return;
    }

    const button = createButton(container, refButton);

    insertAfter(button, refButton);
}

document.addEventListener('animationstart', onNodeInsert, false);