显示好大学在线测验与作业选择题回答情况
// ==UserScript==
// @name CNMOOC 好大学在线选择题答题情况查看 Revived
// @namespace https://github.com/PhotonQuantum/cnmooc_select
// @version 0.9
// @description 显示好大学在线测验与作业选择题回答情况
// @author fourstring, LightQuantum
// @match https://cnmooc.org/study/initplay/*
// @match https://cnmooc.org/examTest/stuExamList/*
// @match https://www.cnmooc.org/examTest/stuExamList/*
// @match https://www.cnmooc.org/study/*
// @match https://*.cnmooc.org/examTest/stuExamList/*
// @match https://*.cnmooc.org/study/*
// @grant none
// ==/UserScript==
(function () {
"use strict";
var answers = [];
(function (open) {
const re = /https:\/\/(|www.)cnmooc.org\/examSubmit\/\d*\/getExamPaper-\d*_\d*_\d*\.mooc/;
XMLHttpRequest.prototype.open = function () {
this.addEventListener(
"readystatechange",
function () {
if (this.readyState == 4 && re.test(this.responseURL)) {
const parsed_json = JSON.parse(this.response);
const quoted_answers = parsed_json.examSubmit.submitContent;
const raw_answers = JSON.parse(quoted_answers);
answers = raw_answers.map((item) => {
const parsed_item = JSON.parse(item);
return parsed_item.errorFlag === "right";
});
}
},
false
);
open.apply(this, arguments);
};
})(XMLHttpRequest.prototype.open);
function createTipsNode(ok) {
var tipsNode = document.createElement("span");
if (ok) {
tipsNode.innerText =
"[正确(结果不会即时更新，需要答题完暂存后再重新进入查看)]";
tipsNode.style.color = "green";
} else {
tipsNode.innerText =
"[错误(结果不会即时更新，需要答题完暂存后再重新进入查看)]";
tipsNode.style.color = "red";
}
return tipsNode;
}
function checkErrorFlags() {
let zip = (rows) => rows[0].map((_, c) => rows.map((row) => row[c]));
let problemsList = $("div.view-test.practice-item").toArray();
if (problemsList.length == answers.length) {
zip([problemsList, answers]).map(([problem, answer]) => {
let currentProblemId = problem.getAttribute("id");
if ($("div#" + currentProblemId + " a.selected").toArray().length > 0) {
let addtionalTextArea = $(
"div#" + currentProblemId + " div.test-attach"
)[0];
addtionalTextArea.appendChild(createTipsNode(answer));
}
});
}
}
function hook(_this, func, pre, post) {
return function () {
if (pre) pre.apply(_this, arguments);
func.apply(_this, arguments);
if (post) post.apply(_this, arguments);
};
}
setInterval(function () {
if (window.MathJax !== undefined && window.MathJax.patched === undefined) {
window.MathJax.Hub.Queue = hook(
window.MathJax.Hub,
window.MathJax.Hub.Queue,
null,
checkErrorFlags
);
window.MathJax.patched = true;
}
}, 500);
})();