Tampermonkey userscript to enable subtitles by default in dropout.tv

README.md

Tampermonkey/Greasemonkey script to automatically enable captions/subtitles in Dropout videos.

To use, install the Tampermonkey (https://www.tampermonkey.net) (Greasemonkey or whatever alternative might work but I haven't tested).

Then go to https://gist.github.com/ror3d/535d19db4a48e25a3de656d9a01eca60/raw/dropout-autocc.user.js, and a page should appear that lets you install the script.

Now, when you open a video, the script will try to set the subtitles to the ones called "English".

dropout-autocc.user.js

// ==UserScript==
// @name         Dropout auto subtitles
// @version      0.1
// @description  enable subtitles by default in dropout.tv
// @author       @ror3d@mastodon.gamedev.place
// @match        *://embed.vhx.tv/videos/*
// @icon         data:image/gif;base64,R0lGODdhEAAQAPUAAAAAIAACIQAAH25lJ6aZLX50KEA8IzEvI4+EKt3MNv/0PbmrMA8UIm1kJ+PRNtHBNPPgOaibLm5mJ+vZOAAAHIqAKujWN0RAJDw5I4V6KYZ8KSwrIqSXLcKzMQ4TIo6DKqyfLgYOIbepMPXiOp2RLAAAGEdDJP/3Poh+KWBZJf/6Pv/8Psq6MpeMK9jHNci4Ms++M9DAM1ZQJYZ7KfDdOezaOO7bOOTSN7anL0ZBJCooIgYOIslFJslFJslFJslFJiH5BAEAADwALAAAAAAQABAAAAZ+QIBwSCwaj0hAgCgQGJuAAWo6LRQN0wPixD0pTgvGsMGdch0PCDcylJRRXA4FdTs5LkJMRrOBn+QAHSc0GkIeTQIfawEhOCcjKEJ+KBpcJCU5CScWKZIqKxqVJy8tLgoKL0MoMDChXV4nCTJHGTYWFhMJOHhHOqGhO0nCw0dBADs=
// @grant        none
// @run-at       document-start
// ==/UserScript==


(function() {
    'use strict';

    const li_listeners = [];

    const r = /english/i;

    function activateCC()
    {
        console.log("Found " + li_listeners.length + " entries");
        for (var i = 0; i < li_listeners.length; ++i)
        {
            // Get the label with the text. We will be looking for one that has the text "english" in it (it seems it's usually called "English CC", but just in case)
            var span = li_listeners[i].target.querySelector("span");
            if (span && r.test(span.textContent))
            {
                console.log("Clicking " + span.textContent);
                // Just simulate a click on the button, this should enable the english subtitles
                li_listeners[i].target.click();
                return;
            }
        }
    }

    var timeout = null;

    // Override the addEventListener to be able to catch when the buttons are set up
    const orig = EventTarget.prototype.addEventListener;
    EventTarget.prototype.addEventListener = function(...args) {
        if (this instanceof HTMLElement && args[0] == "click" && this.tagName.toLowerCase() == "li") {
            // A click event for a <li> tag was created, let's add it to the list of listeners to check later
            //console.log("Added click listener for " + this.getAttribute("class"));
            li_listeners.push({
                type: args[0],
                fn: args[1],
                target: this,
            });

            // Clear the timeout if it's already running
            if (timeout !== null)
            {
                window.clearTimeout(timeout);
            }
            // Set a timeout to check the list of buttons in a second, to allow it to finish everything up
            timeout = window.setTimeout(function() { timeout = null; activateCC();}, 1000);
        }
        // Call the original addEventListener function
        return orig.apply(this, args);
    };

})();