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auto_grading.js
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// ==UserScript==
// @name Auto grading
// @namespace http://tampermonkey.net/
// @version 0.7.3
// @description USTC 自动评教 tqm.ustc.edu.cn
// @author PRO_2684
// @match https://tqm.ustc.edu.cn/index.html*
// @icon https://tqm.ustc.edu.cn/favicon.ico
// @grant GM_getResourceText
// @license gpl-3.0
// @resource answers https://cdn.jsdelivr.net/gh/PRO-2684/gadgets/auto_grading/answers.json
// ==/UserScript==
(function () {
'use strict';
const INTERVAL = 500; // ms
const log = console.log.bind(console, "[Auto grading]");
const standard_answers = JSON.parse(GM_getResourceText("answers"));
let bypass_timer = false;
let menu_root;
function clean(str) {
// Remove spaces
str = str.replace(/\s+/g, "");
// Remove leading asterisk
if (str[0] == '*') str = str.slice(1);
// Remove leading serial number
str = str.replace(/^\d*\./, "");
// Remove "(单选题)"/"(多选题)"
str = str.replace("(单选题)", "");
str = str.replace("(多选题)", "");
return str;
}
function on_bypass_click() {
bypass_timer = !bypass_timer;
this.textContent = `绕过倒计时 [${bypass_timer ? "✔" : "✘"}]`;
}
function add_item(display_name, hint, callback) {
const new_item = menu_root.appendChild(document.createElement("li"));
new_item.innerText = display_name;
new_item.onclick = callback;
new_item.className = "ant-menu-item";
new_item.title = hint;
}
function help() {
alert("食用方法:\n1. 进入未完成的评价问卷\n2. 侧栏选择你想要的操作或激活快捷键\n3. 等待脚本执行\n\n快捷键说明:\n- Enter: 智能执行以下中的一项: 下一位教师/选择标准答案/提交回答\n- Shift+Enter: 全自动评教\n- Backspace: 忽略并转到下一个");
}
function grade() {
const questions = document.querySelectorAll("[class^='index_subject-']");
const disabled = questions[0].querySelector(".ant-radio-wrapper-disabled");
if (disabled) return false;
let first_unchosen = null;
questions.forEach((question) => {
const required = Boolean(question.querySelector('[class^="index_necessary"]'));
if (!required) return;
const tmp = question.querySelector("[class^='index_title']");
const remark = tmp.querySelector("[class^='index_remarks-']");
const title = remark?.textContent || clean(tmp.querySelector("[class^='index_richTextContent']").textContent);
const standard_answer = standard_answers[title];
log(`${title}: ${standard_answer}`);
let chosen = false;
if (standard_answer) {
const options = question.querySelectorAll('[style="width: 100%;"]');
for (const option of options) {
const is_standard_answer = (standard_answer.indexOf(option.innerText) >= 0);
// const is_selected = option.querySelector(".ant-checkbox-checked") || option.querySelector(".ant-radio-checked");
if (is_standard_answer) {
option.firstChild.click();
chosen = true;
// break; // Compatible for multiple answers
}
}
}
if (!chosen && first_unchosen == null) first_unchosen = question;
});
if (first_unchosen != null) {
first_unchosen.scrollIntoView({ behavior: "smooth" });
return false;
}
return true;
}
function ignore() {
const ignore_btn = root_node.querySelector("[class^='TaskDetailsMainContent_normalButton']");
if (ignore_btn && ignore_btn.parentElement.parentElement.parentElement.getAttribute('aria-hidden') == 'false') {
ignore_btn.click();
} else {
log("Cannot find ignore button!");
}
const tabs = root_node.querySelector("[class='ant-tabs-nav-scroll']");
if (tabs) {
tabs = tabs.children[0].children[0];
} else {
log("Cannot find teacher/TA list!");
return;
}
let flag = false;
let tab;
for (tab of tabs.children) {
if (flag) {
tab.click();
break;
} else if (tab.getAttribute('aria-selected') == 'true') {
flag = true;
}
}
}
async function auto() {
if (await try_click("button[class^='ant-btn ant-btn-primary']")) // Confirm submission / Next teacher or course
return true;
if (grade()) { // Select standard answer
await try_click("button[class^='ant-btn index_submit']"); // Submit
return true;
}
return false;
}
async function full_auto() {
// Wait INTERVAL ms between auto() resolves and next auto() call
while (await auto()) {
await new Promise((resolve) => setTimeout(resolve, INTERVAL));
}
alert("Success!");
}
function dump() {
const questions = document.querySelectorAll("[class^='index_subject-']");
const disabled = questions[0].querySelector(".ant-radio-wrapper-disabled");
if (disabled) return false;
let data = {};
questions.forEach((question) => {
const required = Boolean(question.querySelector('[class^="index_necessary"]'));
if (!required) return;
const tmp = question.querySelector("[class^='index_title']");
const remark = tmp.querySelector("[class^='index_remarks-']");
const title = remark?.textContent || clean(tmp.querySelector("[class^='index_richTextContent']").textContent);
const options = question.querySelectorAll('[style="width: 100%;"]');
data[title] = [];
for (const option of options) {
data[title].push(option.innerText);
}
});
log(JSON.stringify(data));
}
function is_displayed(ele) {
let displayed = true;
let node = ele;
while (node) {
if (node.style.display == "none") {
displayed = false;
break;
}
node = node.parentElement;
}
return displayed;
}
function force_enable(ele) {
ele.removeAttribute("disabled");
const prefix = "__reactEventHandlers$";
for (const key of Object.getOwnPropertyNames(ele)) {
if (key.startsWith(prefix)) {
ele[key].disabled = false;
}
}
}
async function until_enabled(ele) {
return new Promise((resolve) => {
if (!ele.hasAttribute("disabled")) {
resolve();
return;
} else if (bypass_timer) {
force_enable(ele);
resolve();
return;
}
log("Waiting for button to be enabled...", ele);
const observer = new MutationObserver((mutations, observer) => {
if (!ele.hasAttribute("disabled")) {
observer.disconnect();
log("Button is enabled!", ele);
resolve();
}
});
observer.observe(ele, { attributes: true });
});
}
async function try_click(selector) {
const eles = document.querySelectorAll(selector);
for (const ele of eles) {
if (ele && is_displayed(ele)) {
await until_enabled(ele);
ele.click();
return true;
}
}
return false;
}
// Side bar
const root_node = document.getElementById('root');
const config = { attributes: false, childList: true, subtree: true };
const callback = function (mutations, observer) {
menu_root = root_node.querySelector('.ant-menu-root');
if (menu_root) {
observer.disconnect();
add_item("使用说明", "自动评教脚本使用说明", help);
add_item("绕过倒计时 [✘]", "（实验性功能）在 Enter 以及全自动评教时绕过 5 秒倒计时", on_bypass_click);
add_item("自动评价", "自动选择标准答案", grade);
add_item("忽略并转到下一个", "（若可能）忽略当前助教并转到下一个助教", ignore);
add_item("全自动评教", "（实验性功能）彻底解放双手", full_auto);
add_item("输出答案", "（调试用）输出当前问卷的所有答案", dump);
}
}
const observer = new MutationObserver(callback);
observer.observe(root_node, config);
// Shortcut
document.addEventListener("keyup", (e) => {
if (document.activeElement.nodeName != "INPUT" || document.activeElement.nodeName != "TEXTAREA") { // Don't trigger when typing
switch (e.key) {
case "Enter":
if (!e.shiftKey) {
auto();
} else {
full_auto();
}
break;
case "Backspace":
ignore();
break;
default:
break;
}
}
});
})();