// ==UserScript==
// @name         Duolingo LevelJumper
// @namespace    esh
// @version      3.0.1
// @description  Provides an menu to easy jump to the first lesson of a skill level (e.g. 3 crowns) and to the last learned level.
// @match        https://*.duolingo.com/*
// @grant        GM_getValue
// @grant        GM_setValue
// @license      MIT
// @icon         https://www.google.com/s2/favicons?sz=64&domain=duolingo.com
// ==/UserScript==
const VERSION = '3.0.1';
const LOG_STRING = 'DuolingoLevelJumper ' + VERSION;
const SKILL_QS = '[data-test="skill"]';
const FLOATING_BUTTONS = '._1Hxe4';
const config = {};
config.init = false;
config.ignoreLegendaray = true;
config.autoScroll = 'off';
// Print nice debug statements
function debug(s) {
let name = (debug.caller !== null) ? debug.caller.name : '';
if (typeof (s) === 'object') {
console.debug(LOG_STRING + ' ' + name + '(): ');
console.debug(s);
} else {
console.debug(LOG_STRING + ' ' + name + '(): ' + s);
}
}
(function () {
'use strict';
new MutationObserver(start).observe(document.body, {
childList: true,
subtree: true
});
debug('MutationOberserver running');
})();
window.addEventListener('load', function () {
autoScroll();
});
// entry point for mutation observer
function start() {
// only run, when we are in the learning tree page
if (window.location.pathname.includes('/learn')) {
init();
} else {
// reset config to allow reindexing when we come back to the learning tree page
config.init = false;
}
}
// init the one time run functions
function init() {
const skills = document.querySelectorAll(SKILL_QS);
if (skills.length > 0 && !config.init) {
config.init = true;
getConfig();
prepareJumpTargets(skills);
addJumpMenu();
}
}
// gets stored config data
function getConfig() {
const duoState = JSON.parse(localStorage.getItem('duo.state'));
config.lLang = duoState.user.learningLanguage;
config.fLang = duoState.user.fromLanguage;
config.langConfig = config.lLang + '_' + config.fLang;
config.autoJump = GM_getValue('DuolingoLevelJumper-autoJump-' + config.langConfig, '0');
config.level0 = GM_getValue('DuolingoLevelJumper-level0-' + config.langConfig, '0');
config.level1 = GM_getValue('DuolingoLevelJumper-level1-' + config.langConfig, '0');
config.level2 = GM_getValue('DuolingoLevelJumper-level2-' + config.langConfig, '0');
config.level3 = GM_getValue('DuolingoLevelJumper-level3-' + config.langConfig, '0');
config.level4 = GM_getValue('DuolingoLevelJumper-level4-' + config.langConfig, '0');
config.level5 = GM_getValue('DuolingoLevelJumper-level5-' + config.langConfig, '0');
config.levelCrown = GM_getValue('DuolingoLevelJumper-levelCrown-' + config.langConfig, '0');
config.levelBroken = GM_getValue('DuolingoLevelJumper-levelBroken-' + config.langConfig, '0');
config.tree = GM_getValue('DuolingoLevelJumper-tree-' + config.langConfig, '');
config.lastLevel = GM_getValue('DuolingoLevelJumper-lastLevel-' + config.langConfig, 'DuolingoLevelJumper_0');
buildIndex(duoState.skills);
debug('loading config');
}
// stores config data
function setConfig() {
GM_setValue('DuolingoLevelJumper-lastLevel-' + config.langConfig, config.lastLevel);
}
// build a sorted skills list
function buildIndex(skillList) {
const index = {};
const rows = {};
const skillElements = {};
index[0] = [];
index[1] = [];
index[2] = [];
index[3] = [];
index[4] = [];
index[5] = [];
index['finalLevel'] = [];
index['decayed'] = [];
index['crown'] = [];
index['lastLevel'] = [];
let i = 0;
for (element in skillList) {
const skill = skillList[element];
skill.id = 'DuolingoLevelJumper_' + i;
rows[skill.row] = skill.id;
skillElements[skill.id] = skill;
if (skill.accessible) {
if (skill.id === config.lastLevel) {
index['lastLevel'] = [skill];
}
if (skill.finishedLevels === skill.levels) {
index['crown'].push(skill);
} else if (skill.decayed) {
index['decayed'].push(skill);
} else {
if (config.ignoreLegendaray && skill.finishedLevels === skill.levels - 1) {
index['finalLevel'].push(skill);
} else {
index[skill.finishedLevels].push(skill);
}
}
i++;
}
}
config.skillElements = skillElements;
config.skillRows = rows;
config.skills = index;
}
// set target ids to all skills
function prepareJumpTargets(skills) {
skills.forEach(function (element, index) {
element.id = 'DuolingoLevelJumper_' + index;
element.addEventListener('click', function () {
config.skills['lastLevel'] = config.skillElements[element.id];
config.lastLevel = element.id;
setConfig();
document.querySelector('#jumpMenu_lastLevel').children[1].innerText = index;
document.querySelector('#jumpMenu_lastLevel').href = getJumpTarget(config.skillElements[element.id]);
// TODO: prevent setting it for unaccessible skills
})
});
debug('setting all jump targets');
}
// adds the jump menu underneath the floating plus button
function addJumpMenu() {
let insertElement = document.querySelector(FLOATING_BUTTONS);
let jumpMenu = document.createElement('div');
jumpMenu.innerHTML = '<button class="_2qIaj _2kfEr _1nlVc _2fOC9 UCrz7 t5wFJ _3tP0w">';
jumpMenu.innerHTML += prepareJumpMenuEntry('decayed');
// does it make any sense displaying crowns?
// jumpMenu.innerHTML += prepareJumpMenuEntry('crown');
jumpMenu.innerHTML += prepareJumpMenuEntry('finalLevel');
jumpMenu.innerHTML += prepareJumpMenuEntry('5');
jumpMenu.innerHTML += prepareJumpMenuEntry('4');
jumpMenu.innerHTML += prepareJumpMenuEntry('3');
jumpMenu.innerHTML += prepareJumpMenuEntry('2');
jumpMenu.innerHTML += prepareJumpMenuEntry('1');
jumpMenu.innerHTML += prepareJumpMenuEntry('0');
jumpMenu.innerHTML += prepareJumpMenuEntry('lastLevel');
jumpMenu.innerHTML += '</button>';
insertElement.insertAdjacentElement('beforeend', jumpMenu);
debug('adding jump menu');
}
// One entry with right crown image and number
function prepareJumpMenuEntry(skill) {
const listLength = config.skills[skill].length;
if (listLength === 0) return '';
let target = getJumpTarget(config.skills[skill][0]);
let crownImage;
let crownClass;
let crownNumber = skill;
if (skill === '0') {
// grey crown
crownImage = '//d35aaqx5ub95lt.cloudfront.net/images/fafe27c9c1efa486f49f87a3d691a66e.svg';
crownNumber = '';
// } else if (skill === 'finalLevel') {
// legendary crown
//crownImage = '//d35aaqx5ub95lt.cloudfront.net/images/crowns/dc4851466463c85bbfcaaaaae18e1925.svg'
} else {
// golden crown
crownImage = '//d35aaqx5ub95lt.cloudfront.net/images/b3ede3d53c932ee30d981064671c8032.svg';
}
const normalSkills = ['0', '1', '2', '3', '4', '5', 'finalLevel', 'lastLevel'];
if (normalSkills.includes(skill)) {
crownClass = "GkDDe";
} else {
crownClass = "GkDDe _1m7gz";
crownNumber = '';
}
if (skill === 'finalLevel') crownNumber = '';
if (skill === 'lastLevel') crownNumber = ((config.skills[skill][0].id).split('_'))[1];
return `<div class="_2-dXY" style="font-size: 14.84px;">
<a id="jumpMenu_${skill}" href="${target}">
<img alt="crown" class="_18sNN" style="width:32px; height:26px;" src="${crownImage}">
<div class="${crownClass}" style="top:40%;" data-test="level-crown">${crownNumber}</div>
</a>
</div>`;
}
// get jump target (one row before) given element
function getJumpTarget(element) {
let target = config.skillRows[element.row - 1];
target = (target === undefined) ? 'javascript:scroll(0,0);' : '#' + target;
return target;
}
// triggers autoScrolling
function autoScroll() {
if (config.autoScroll !== 'off') {
document.getElementById('jumpMenu_' + config.autoScroll).click();
debug(config.autoScroll);
}
}