tampermonkey: plex subtitle filter

gistfile1.txt

// ==UserScript==
// @name         Selective Subtitle Button Handler on Plex
// @namespace    http://tampermonkey.net/
// @version      1.3
// @description  Highlights subtitle elements and handles their buttons based on language rules on Plex Desktop app.
// @author       You
// @match        https://app.plex.tv/desktop/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const ignoredPatterns = [
        /^None$/i,
        /English/i,
        /Swedish/i
    ];

    function shouldIgnore(text) {
        return ignoredPatterns.some(pattern => pattern.test(text));
    }

    function processSubtitles() {
        const elements = document.querySelectorAll('[data-testid="subtitlesStream"]');
        elements.forEach(el => {
            const text = el.textContent.trim();
            if (shouldIgnore(text)) {
                console.log(`Skipping subtitle: "${text}"`);
                return;
            }

            // Highlight the subtitle span
            //el.style.border = '2px solid hotpink';
            //el.style.padding = '2px';

            // Tone down or mark the button
            const button = el.closest('button');
            if (button) {
                button.style.display = 'none';
                //button.style.opacity = '0.4';
                //button.style.border = '2px dashed red';
                console.log(`Modified button for subtitle: "${text}"`, button);
            }
        });
    }

    // Initial run
    processSubtitles();

    // React to dynamic content
    const observer = new MutationObserver(() => {
        processSubtitles();
    });

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