Mute auto audio play on duolingo.
// ==UserScript==
// @name Duolingo Audio
// @namespace http://tampermonkey.net/
// @version 0.3.0
// @description Mute auto audio play on duolingo.
// @author You
// @include https://www.duolingo.com/checkpoint*
// @include https://www.duolingo.com/skill*
// @include https://www.duolingo.com/learn*
// @include https://www.duolingo.com/practice*
// @grant none
// ==/UserScript==
let header = "";
let sentence = "";
(function() {
console.log("DuoMod Script mounted")
'use strict';
// Toggle console outputs
let logOutput = false;
let log = function(){
if (logOutput){
return console.log.apply(console, arguments);
}
};
const MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;
const onMutation = (mutations) => {
const headerEl = document.querySelector('[data-test="challenge-header"]');
const hintEl = document.querySelector('[data-test="hint-sentence"]');
log("Something changes, maybe will mute audio", mutations, hintEl, headerEl)
if (hintEl && headerEl && headerEl.innerText === "Write this in English") {
const curHeader = headerEl.innerText;
const curSentence = hintEl.innerText;
if(curSentence !== sentence || curHeader !== header) {
log("Audio muted");
Howler.stop();
header = curHeader;
sentence = curSentence;
}
else {
log("Audio was already muted");
}
}
else if (hintEl && headerEl && headerEl.innerText === "Write this in Japanese"){
const likelyhood = Math.floor(Math.random() * 100);
if(likelyhood < 60) {
headerEl.innerHTML = `<span>Write this in <span style="text-decoration: underline; color: darkgreen;"><b>casual</b></span> Japanese</span>`;
} else {
headerEl.innerHTML = `<span>Write this in <span style="text-decoration: underline; color: darkblue;"><b>polite</b></span> Japanese</span>`;
}
}
}
var observer = new MutationObserver(onMutation);
var settings = {
childList: true, subtree: true, attributes: false, characterData: false,
}
observer.observe(document.body, settings); // I tried to find a better thing to observe (like the next button), but nothing worked
})();