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This script adds keyboard control to kana/kanji exercises, as requested here: https://www.reddit.com/r/duolingo/comments/7v9veq/duolingo_please_do_this_part_keyboard_compatible/
当前为
// ==UserScript==
// @name Duolingo - add keyboard support to kana/kanji exercises
// @namespace https://github.com/ciekawylogin/
// @version 0.3.1
// @description This script adds keyboard control to kana/kanji exercises, as requested here: https://www.reddit.com/r/duolingo/comments/7v9veq/duolingo_please_do_this_part_keyboard_compatible/
// @author Michał Artur Krawczak (ciekawylogin@github), good5209@github
// @match https://www.duolingo.com/*
// @require https://code.jquery.com/jquery-3.5.1.min.js
// ==/UserScript==
var numberStyle = 'position: absolute; top: 1px; right: 1px; font-size: 7pt; color: gray; padding: 1px 3px; border: 1px solid #ccc;';
var buttonStyle = 'position:relative;';
var keys = '1234567890qwertyuiopasdfghjklzxcvbnm[]';
function getButtons() {
var name = '_1HcF0';
try {
var button = $("button[data-test='challenge-tap-token']");
var classes = button.className.split(' ');
if (classes.length > 0) {
name = classes[0];
}
} catch (e) {}
return document.getElementsByClassName(name);
}
function appendNum(elem, num) {
var para = document.createElement("p");
var node = document.createTextNode(num);
para.className = "mk-keycode";
para.appendChild(node);
para.style.cssText = numberStyle;
elem.style.cssText = buttonStyle;
elem.appendChild(para);
}
function addNumbers() {
var buttons = Array.from(getButtons());
for(var i in buttons) {
appendNum(buttons[i], keys[i]);
}
}
function addNumbersIfNotPresent() {
var buttonsWithoutCodes = Array.from(getButtons());
var buttonsWithCodes = Array.from(document.getElementsByClassName("mk-keycode"));
if(buttonsWithoutCodes.length > 0 && buttonsWithCodes.length === 0) {
addNumbers();
}
}
function addEvent(element, eventName, callback) {
if (element.addEventListener) {
element.addEventListener(eventName, callback, false);
} else if (element.attachEvent) {
element.attachEvent("on" + eventName, callback);
} else {
element["on" + eventName] = callback;
}
}
addEvent(document, "keydown", function (e) {
var key = e.key;
var idx = keys.indexOf(key.toLowerCase());
if (idx >= 0) { // select word button
var word_bank = $("div[data-test='word-bank']"); // check kana/kanji exercises
var buttons = (word_bank.length > 0) ? $("button", word_bank) : Array.from(getButtons());
if (idx < buttons.length) {
buttons[idx].click();
}
} else { // other key
if (key === "Backspace") { // delete last answer
var answer_bank = $('._1Cx0i');
var buttons = $("button", answer_bank);
if (buttons.length > 0) {
buttons[buttons.length - 1].click();
}
}
}
});
setInterval(addNumbersIfNotPresent, 250);
console.debug('Load duolingo shortcut script');