Automatically generates Audio for items you're learning. Configure in left panel.
// ==UserScript==
// @name Memrise Audio Provider
// @description Automatically generates Audio for items you're learning. Configure in left panel.
// @match https://*.memrise.com/course/*/garden/*
// @match https://*.memrise.com/garden/review/*
// @run-at document-end
// @version 1.1.4
// @grant none
// @namespace https://gf.qytechs.cn/users/213706
// ==/UserScript==
// Based on https://github.com/cooljingle/memrise-audio-provider
function main() {
// This script has three different methos to generate audio
// Speech Synthesis API
const SPEECHSYNTHESIS_LANG = {
"German": "de-DE",
"English": "en-GB",
"Spanish (Mexico)": "es-ES",
"Spanish (Spain)": "es-ES",
"French": "fr-FR",
"Hindi": "hi-IN",
"Indonesian": "id-ID",
"Italian": "it-IT",
"Japanese": "ja-JP",
"Kanji": "ja-JP",
"Korean": "ko-KR",
"Dutch": "nl-NL",
"Polish": "pl-PL",
"Portuguese (Brazil)": "pt-BR",
"Russian": "ru-RU",
"Chinese (Simplified)": "zh-CN",
"Cantonese": "zh-HK",
"Chinese (Traditional)": "zh-TW"
};
// Google TTS API
const GOOGLETTS_LANG = {
"Afrikaans": "af",
"Albanian": "sq",
"Arabic": "ar",
"Armenian": "hy",
"Bengali": "bn",
"Bosnian": "bs",
"Catalan": "ca",
"Chinese (Simplified)": "zh-CN",
"Chinese (Traditional)": "zh-TW",
"Croatian": "hr",
"Czech": "cs",
"Danish": "da",
"Dutch": "nl",
"English": "en",
"Esperanto": "eo",
"Finnish": "fi",
"French": "fr",
"German": "de",
"Greek": "el",
"Hindi": "hi",
"Hungarian": "hu",
"Icelandic": "is",
"Indonesian": "id",
"Italian": "it",
"Japanese": "ja",
"Kanji": "ja",
"Khmer": "km",
"Korean": "ko",
"Latin": "la",
"Latvian": "lv",
"Macedonian": "mk",
"Nepali": "ne",
"Norwegian": "no",
"Polish": "pl",
"Portuguese (Brazil)": "pt-BR",
"Portuguese (Portugal)": "pt-PT",
"Romanian": "ro",
"Russian": "ru",
"Serbian": "sr",
"Sinhalese": "si",
"Slovak": "sk",
"Spanish (Mexico)": "es",
"Spanish (Spain)": "es",
"Swahili": "sw",
"Swedish": "sv",
"Tamil": "ta",
"Thai": "th",
"Turkish": "tr",
"Ukrainian": "uk",
"Vietnamese": "vi",
"Welsh": "cy"
};
// Voice RSS API
const VOICERSS_LANG = {
"Catalan": "ca-es",
"Chinese (Simplified)": "zh-cn",
"Chinese (Traditional)": "zh-tw",
"Danish": "da-dk",
"Dutch": "nl-nl",
"English": "en-gb",
"fi-fi": "fi",
"French": "fr-fr",
"German": "de-de",
"Italian": "it-it",
"Japanese": "ja-jp",
"Kanji": "ja-jp",
"Korean": "ko-kr",
"Norwegian": "nb-no",
"Polish": "pl-pl",
"Portuguese (Brazil)": "pt-br",
"Portuguese (Portugal)": "pt-pt",
"Russian": "ru-ru",
"Spanish (Mexico)": "es-es",
"Spanish (Spain)": "es-es",
"Swedish": "sv-se"
};
const LOCALSTORAGE_ID = "memrise-audio-provider-storagev2",
LOCALSTORAGE_VOICERSSID = "memrise-audio-provider-voicerss",
LOCALSTORAGE_OVERRIDEID = "memrise-audio-provider-override-all",
NONE = "-- None";
var AudioProvider = {
/**
* Entrypoint
*/
init: function(){
// Check current referer
this.referrerState = "";
this.requestCount = 0;
this.watchNetwork();
// Which API to use ?
this.speechSynthesis = window.speechSynthesis && new window.SpeechSynthesisUtterance();
this.speechSynthesisPlaying = false;
this.canSpeechSynthesize = true;
this.canGoogleTts = true;
this.canVoiceRss = true;
// Current state
this.language = null; // current language (label)
this.courseId = null; // current course id
this.wordColumn = null; // name of field containing word
this.currentItem = null; // current item to refresh current word when changing settings
this.currentWord = ""; // current word
this.cachedAudioElements = []; // cached audio DOMElements
// Add Meta to get Google TTS working
var meta = document.createElement('meta');
meta.name = "referrer";
meta.content = "origin";
document.getElementsByTagName('head')[0].appendChild(meta);
// Add AudioProvider to window
this.add_settings();
if(MEMRISE.garden.session) {
this.override_memrise();
} else if(MEMRISE.garden._events && MEMRISE.garden._events.start) {
MEMRISE.garden._events.start.push(this.override_memrise.bind(this));
} else {
setTimeout(function(){
this.override_memrise();
}.bind(this), 1000);
}
},
//+------------------------------------------------------
//|
//| SETTINGS
//|
//+------------------------------------------------------
/**
* Add Settings block to left area
*/
add_settings: function(){
// Retrieve saved settings
this.savedChoices = JSON.parse(localStorage.getItem(LOCALSTORAGE_ID)) || {};
this.voiceRssKey = localStorage.getItem(LOCALSTORAGE_VOICERSSID) || "";
this.overrideAllAudio = localStorage.getItem(LOCALSTORAGE_OVERRIDEID) === "true";
if(!this.voiceRssKey) {
this.canVoiceRss = false;
}
// Add "audio provider" settings to left area
var div = document.createElement('div'),
linkHtml = `
<p id='audio-provider-link'>Audio Provider</p>
<div id='audio-provider-box' style='display:none'>
<div style='display:table; padding: 5px; background: rgba(255,255,255,0.6);'>
<em style='font-size:85%; white-space: nowrap;'>Column to use:</em><br>
<select id='audio-provider-options'></select>
<em style='font-size:85%; white-space: nowrap;'>Override all audio:</em>
<input id='audio-provider-override'
type="checkbox" ${this.overrideAllAudio ? 'checked="checked"': ''}>
<em style='font-size:85%; white-space: nowrap;'>Voice RSS key:</em><br>
<input id='audio-provider-voicerss'
type='text' placeholder='enter Voice RSS key'
value="${this.voiceRssKey.replace(/"/g, '\"')}"
style='width: 150px; padding: 8px;'>
</div>
</div>`;
div.innerHTML = linkHtml;
document.getElementById('left-area').appendChild(div);
// Show/hide settings
document.getElementById('audio-provider-link').addEventListener('click', function () {
var box = document.getElementById('audio-provider-box');
box.style.display = (box.style.display == "none" ? "block" : "none");
});
// User changes settings
document.getElementById('audio-provider-voicerss').addEventListener('change', function () {
localStorage.setItem(LOCALSTORAGE_VOICERSSID, this.value);
});
document.getElementById('audio-provider-override').addEventListener('change', function () {
var checked = this.checked;
AudioProvider.overrideAllAudio = checked;
localStorage.setItem(LOCALSTORAGE_OVERRIDEID, checked);
});
document.getElementById('audio-provider-options').addEventListener('change', function () {
var wordColumn = this.value;
AudioProvider.wordColumn = wordColumn;
AudioProvider.savedChoices[AudioProvider.courseId] = wordColumn;
localStorage.setItem(LOCALSTORAGE_ID, JSON.stringify(AudioProvider.savedChoices));
AudioProvider.updateCurrentWord();
});
},
/**
* Set speechSynthesis language
* Called by MEMRISE when ready (cf override_memrise)
*/
init_speechSynthesis: function(){
if(!this.speechSynthesis || !this.canSpeechSynthesize) {
return;
}
var langCode = SPEECHSYNTHESIS_LANG[this.language];
this.speechSynthesis.lang = langCode || "";
this.speechSynthesis.voice = speechSynthesis.getVoices().filter(function (voice) {
return voice.lang === langCode;
})[0];
this.canSpeechSynthesize = !!(this.speechSynthesis.lang && this.speechSynthesis.voice);
},
/**
* @param object context
*/
set_content: function(context) {
if (context.template == "end_of_session" || context.template == "speed-count-down") {
return;
}
// Which field to use to generate audio ?
var courseId = context.course_id
|| MEMRISE.garden.session_params.course_id
|| MEMRISE.garden.session_data.learnables_to_courses[context.learnable.learnable_id];
if (this.courseId != courseId) {
this.courseId = courseId;
this.wordColumn = this.savedChoices[courseId]
|| (context.learnable.item.kind == "text" ? context.learnable.item.label
: (context.learnable.definition.kind == "text" ? context.learnable.definition.label
: NONE));
this.editAudioOptions(context.learnable);
}
// Set current word
if (!this.canSpeechSynthesize && !this.canGoogleTts && !this.canVoiceRss){
document.getElementById('audio-provider-link').style.display = "none";
log("could not find a way to generate audio for language " + language);
return;
}
this.currentItem = {
item: context.learnable.item,
definition: context.learnable.definition,
audio : (context.presentationData || context.testData).audio.value
};
this.updateCurrentWord(context);
},
/**
* Populate settings content
* Called by MEMRISE whenever we change current course (cf make_box > set_content)
*
* @param object word
*/
editAudioOptions: function(word) {
var html = `<option value="${NONE}">${NONE}</option>`;
if(word.definition.kind == "text") {
html += `<option value="${word.definition.label}">${word.definition.label}</option>`;
}
if(word.item.kind == "text") {
html += `<option value="${word.item.label}">${word.item.label}</option>`;
}
var options = document.getElementById('audio-provider-options');
options.innerHTML = html;
options.value = this.wordColumn;
},
/**
* Update currentWord
* Called by MEMRISE when rendering word (cf make_box > set_content)
* And by AudioProvider when updating wordColumn
*/
updateCurrentWord: function() {
var item = this.currentItem;
if(!item) {
return;
}
// Should we generate audio ?
var handleAudio = this.overrideAllAudio
|| (_.isArray(item.audio) ? item.audio[0] : item.audio).normal === "AUDIO_PROVIDER";
if(!handleAudio || this.wordColumn === NONE) {
this.currentWord = "";
return;
}
// Get word
this.currentWord = _.find([item.definition, item.item], x => x.label === this.wordColumn).value;
// GoogleTTS: preload as we change referrer header while loading (we don't want to conflict with memrise calls)
if (!this.canSpeechSynthesize && this.canGoogleTts) {
this.getGoogleTtsElement(this.currentWord);
}
},
//+------------------------------------------------------
//|
//| OVERRIDE MEMRISE
//|
//+------------------------------------------------------
/**
* Override Memrise functions with our owns
*/
override_memrise: function(){
// Override MEMRISE's functions
this.cached = {
make_box : MEMRISE.garden.session.make_box,
fixMediaUrl : MEMRISE.renderer.fixMediaUrl,
play : MEMRISE.audioPlayer.play
};
MEMRISE.garden.session.make_box = this.make_box;
MEMRISE.renderer.fixMediaUrl = this.fixMediaUrl;
MEMRISE.audioPlayer.play = this.play;
// Populate audio
this.language = MEMRISE.garden.session.category.name;
this.init_speechSynthesis();
this.populateScreenAudios();
// Manually call make_box if MEMRISE already loaded content
if(MEMRISE.garden.box) {
this.set_content(MEMRISE.garden.box);
// Add audio player to window
var columns = document.querySelector('.columns');
// Presentation
if(columns) {
if(!columns.querySelector('.first-audio')) {
var div = document.createElement('div');
div.setAttribute('class', 'row column first-audio');
div.innerHTML = '<div class="row-value"><a class="audio-player audio-player-hover" href=""></a></div>';
columns.appendChild(div);
}
// Multi-choice/typing/tapping
} else {
var audio = document.querySelector('.hidden-audio');
if(audio && audio.children.length == 0) {
audio.innerHTML = '<a class="audio-player audio-player-hover" href=""></a>';
}
}
}
},
populateScreenAudios: function() {
var learnables = MEMRISE.garden.learnables
|| _.indexBy(MEMRISE.garden.session_data.learnables, 'learnable_id');
_.each(learnables, function(v, k) {
var learnableScreens = (MEMRISE.garden.screens || MEMRISE.garden.session_data.screens)[k],
screenMap = MEMRISE.garden.screen_template_map[k];
_.each([learnableScreens, screenMap], screens => {
_.each(screens, s => {
s = _.isArray(s) ? s[0] : s;
var hasAudio = s.audio && s.audio.value && s.audio.value.length;
if(!hasAudio){
s.audio = {
alternatives: [],
direction: "target",
kind: "audio",
label: "Audio",
style: [],
value: [{
normal: "AUDIO_PROVIDER",
slow: "AUDIO_PROVIDER"
}]
};
} // end if
});
});
});
},
/**
* @return string
*/
make_box: function(){
var context = AudioProvider.cached.make_box.apply(this, arguments);
AudioProvider.set_content(context);
return context;
},
/**
* @return string
*/
fixMediaUrl: function () {
if (AudioProvider.overrideAllAudio
|| arguments[0] === "AUDIO_PROVIDER"
|| (_.isArray(arguments[0]) && arguments[0][0] === "AUDIO_PROVIDER")) {
return "";
} else {
return AudioProvider.cached.fixMediaUrl.apply(this, arguments);
}
},
/**
* Play audio
* Generates automatically if necessary
*/
play: function () {
if(document.body.classList.contains("audio-muted")) {
return;
}
var shouldGenerateAudio = (arguments[0].url === "");
if (shouldGenerateAudio) {
AudioProvider.playGeneratedAudio(AudioProvider.currentWord);
} else {
AudioProvider.cached.play.apply(this, arguments);
}
},
//+------------------------------------------------------
//|
//| GENERATE AUDIO
//|
//+------------------------------------------------------
/**
* Generates audio for given word
* With the first API that is enabled
*/
playGeneratedAudio: function(word) {
if (!word) {
return;
}
if (this.canSpeechSynthesize) {
this.playSpeechSynthesisAudio(word);
} else if (this.canGoogleTts) {
this.playGoogleTtsAudio(word);
} else if (this.canVoiceRss) {
this.playVoiceRssAudio(word);
} else {
log("no playable sources found");
}
},
/**
* Generate audio with SpeechSynthesis API
* for the given word and plays it
*
* @param string word
*/
playSpeechSynthesisAudio: function(word) {
if(this.speechSynthesis.text === word && this.speechSynthesisPlaying){
return;
}
log("generating speechSynthesis audio for word: " + word);
this.speechSynthesis.text = word;
window.speechSynthesis.speak(this.speechSynthesis);
this.speechSynthesisPlaying = true;
this.speechSynthesis.onend = function (event) {
this.speechSynthesisPlaying = false;
// Firefox utterances don't play more than once
if (navigator.userAgent.search("Firefox") > -1) {
var lang = this.speechSynthesis.lang,
voice = this.speechSynthesis.voice,
test = this.speechSynthesis.text;
this.speechSynthesis = new window.SpeechSynthesisUtterance();
this.speechSynthesis.lang = lang;
this.speechSynthesis.voice = voice;
this.speechSynthesis.text = text;
}
}.bind(this);
},
/**
* Generate audio with Google TTS API
* for the given word and plays it
*
* @param string word
*/
playGoogleTtsAudio: function(word) {
this.getGoogleTtsElement(word, true);
},
getGoogleTtsElement: function(word, play) {
// Check language is recognized by Google
var languageCode = GOOGLETTS_LANG[this.language];
if (!languageCode) {
return;
}
// Is audio cached ?
var source = "google tts",
cachedElement = this.getCachedElement(source, word);
if (cachedElement) {
play && cachedElement.play();
return;
}
// If network is busy: delay TTS request
if (this.isNetworkBusy()) {
log("network busy - delaying google tts load");
setTimeout(function(){
AudioProvider.getGoogleTtsElement(word, play);
}, 300);
return;
}
// Generate audio
log("generating google tts link for word: " + word);
var audioElement = this.makeAudioElement({
label : source,
word : word,
url : this.getGoogleTtsUrl(languageCode, word),
onError: function (e) {
if(referrerState === "origin") {
console.log("referrer header was set prematurely");
this.removeCachedElement(source, word);
} else {
this.canGoogleTts = false;
this.setReferrerOrigin();
}
this.playGeneratedAudio(word);
}.bind(this)
});
this.setCachedElement(source, word, audioElement);
if (navigator.userAgent.search("Firefox") > -1) {
audioElement.addEventListener('loadstart', this.setReferrerNoReferrer.bind(this));
} else {
this.setReferrerNoReferrer();
}
audioElement.addEventListener('loadedmetadata', this.setReferrerOrigin.bind(this));
if(play) {
audioElement.play();
}
},
/**
* Returns Google TTS url
* for the given word and language
*
* @return string
*/
getGoogleTtsUrl: function(languageCode, word) {
// Extra params help to stop google from complaining about too many requests
return `https://translate.google.com/translate_tts?ie=UTF-8&tl=${languageCode}&client=tw-ob&q=${encodeURIComponent(word)}&tk=${Math.floor(Math.random() * 1000000)}`;
},
/**
* Generate audio with Voice RSS API
* for the given word and plays it
*
* @param string word
*/
playVoiceRssAudio: function(word) {
// Check language is recognized by Voice RSS
var languageCode = VOICERSS_LANG[language];
if(!languageCode){
return;
}
// Is audio cached ?
var source = "voice rss",
cachedElement = this.getCachedElement(source, word);
if (cachedElement) {
cachedElement.play();
return;
}
// Generate audio
log("generating voice rss link for word: " + word);
var audioElement = this.makeAudioElement({
label : source,
word : word,
url : this.getVoiceRssUrl(languageCode, word),
onError: function (e) {
this.canVoiceRss = false;
this.playGeneratedAudio(word);
}.bind(this)
});
this.setCachedElement(source, word, audioElement);
audioElement.play();
},
/**
* Returns Voice RRS url
* for the given word and language
*
* @return string
*/
getVoiceRssUrl: function(languageCode, word) {
return `https://api.voicerss.org/?key=${this.voiceRssKey}&src=${encodeURIComponent(word)}&hl=${languageCode}&f=48khz_16bit_stereo`;
},
/**
* Creates an audio DOMElement
* @param object options - {source: string, word: string, url: string, onError: function}
* @return DOMElement
*/
makeAudioElement: function({source, word, url, onError}) {
var audioElement = document.createElement('audio');
audioElement.setAttribute('src', url);
audioElement.addEventListener('error', function(e) {
log(source + " failed");
console.log(e);
onError(e);
});
return audioElement;
},
//+------------------------------------------------------
//|
//| CACHE FUNCTIONS
//|
//+------------------------------------------------------
getCachedElement: function(source, word) {
var cachedElem = this.cachedAudioElements.find((obj) => {
return obj.source === source && obj.word === word;
});
return cachedElem && cachedElem.element;
},
removeCachedElement: function(source, word) {
_.remove(this.cachedAudioElements, (e) => {
return e.source === source && e.word === word
});
},
setCachedElement: function(source, word, element) {
this.cachedAudioElements.push({source, word, element});
},
//+------------------------------------------------------
//|
//| REFERER FUNCTIONS
//|
//+------------------------------------------------------
setReferrerOrigin: function() {
document.getElementsByName("referrer")[0].setAttribute("content", "origin");
this.referrerState = "origin";
},
setReferrerNoReferrer: function() {
document.getElementsByName("referrer")[0].setAttribute("content", "no-referrer");
this.referrerState = "no-referrer";
},
isNetworkBusy: function() {
return this.requestCount > 0;
},
watchNetwork: function() {
$(document).ajaxSend(function (e, xhr, settings) {
this.requestCount++;
if(this.referrerState === "no-referrer") {
this.setReferrerOrigin();
}
xhr.always(function() {
this.requestCount--;
}.bind(this));
}.bind(this));
}
};
function log(message) {
console.log("Audio Provider: " + message);
}
window.addEventListener('load', function(){
AudioProvider.init();
}, false);
}
// Inject JS directly in page to prevent limitations of access
var script = document.createElement('script');
script.setAttribute("type", "application/javascript");
script.appendChild(document.createTextNode('('+ main +')();'));
document.body.appendChild(script);
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