2023/3/20 20:31:10
// ==UserScript==
// @name Bb计算分数
// @namespace Violentmonkey Scripts
// @match https://pibb.scu.edu.cn/webapps/assignment/gradeAssignmentRedirector
// @grant none
// @version 1.1
// @author 呲呲呲
// @description 2023/3/20 20:31:10
// @license MIT
// ==/UserScript==
(function() {
'use strict';
var bodyElement; // DOM: <body> => 获取iframe下的<body>标签
var fillLocation; // DOM: <input> => 最后填分的<input>标签
var feedback; // str => iframe内输入的内容
var results; // array => 正则表达式提取 e.g.: ['-2', '-4']
var finalGrade = 100.0;
// Bb必须加载很慢，必须延迟3000ms再开始程序
setTimeout(() => {
// 获取<body>: input所在位置
bodyElement = document.querySelector("#feedbacktext_ifr").contentDocument.documentElement.querySelector("body");
// 获取<input>: 填分的地方
fillLocation = document.querySelector("#currentAttempt_grade");
// 欢迎、检查
console.log(fillLocation);
console.log("Successfully Initialization!");
// 监听用户input
bodyElement.addEventListener('input', (event) => {
feedback = event.target.innerHTML;
extractNums(feedback); // 更新results
finalGrade = computeGrade(); // 计算results
console.log('Final Grade:', results);
fillLocation.value = finalGrade; // 填写分数
});
}, 3000);
function extractNums(htmlStr) {
const pattern = /-\d+(\.\d+)?/g;
results = htmlStr.match(pattern);
};
function computeGrade() {
if (!results) {return 100;}
let grade = 100;
for (let i=0; i<results.length; i++) {
grade += parseFloat(results[i]);
}
return grade.toFixed(1);
};
})();