在慕课页面上添加一个按钮，用于复制题目文本到剪贴板。
// ==UserScript==
// @name 慕课复制题目
// @version 1.0.2
// @author BaiLu
// @description 在慕课页面上添加一个按钮，用于复制题目文本到剪贴板。
// @license MIT
// @match https://www.icourse163.org/*
// @grant none
// @namespace https://greasyfork.org/users/1411786
// ==/UserScript==
(function () {
'use strict';
// 添加样式以显示按钮
var style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = `
#copyTextBtn {
position: fixed;
bottom: 70px;
right: 20px;
padding: 10px 20px;
font-size: 16px;
color: #fff;
background-color: #007bff;
border: none;
border-radius: 5px;
cursor: pointer;
z-index: 9999;
box-shadow: 0 4px 8px rgba(0,0,0,0.1);
transition: background-color 0.3s ease;
}
#copyTextBtn:hover {
background-color: #0056b3;
}
#copyTextBtn:active {
background-color: #004494;
}
`;
document.head.appendChild(style);
// 创建按钮并添加到页面，但只在特定域名下
var btn = document.createElement('button');
btn.id = 'copyTextBtn';
btn.textContent = '慕课题目';
document.body.appendChild(btn);
// 定义复制文本到剪贴板的函数
function copyTextToClipboard(text) {
if (navigator.clipboard && window.isSecureContext) {
navigator.clipboard.writeText(text).then(function () {
console.log('Text copied to clipboard');
}).catch(function (error) {
console.error('Could not copy text: ', error);
});
} else {
var textArea = document.createElement("textarea");
textArea.value = text;
textArea.style.position = "fixed";
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
var successful = document.execCommand('copy');
var msg = successful ? 'Copied to clipboard' : 'Failed to copy';
console.log(msg);
} catch (err) {
console.error('Could not copy text: ', err);
}
document.body.removeChild(textArea);
}
}
// 为按钮添加点击事件
btn.addEventListener('click', function () {
let a = document.querySelectorAll(".u-questionItem")
let b = ""
a.forEach(i => {
let s = i.querySelector(".u-icon-correct")
if (!s) {
b += i.innerText + "\n"
} else {
b += i.querySelector(".j-title").innerText + " "
let s1 = i.querySelector(".choices.f-cb").querySelectorAll("li.f-cb")
s1.forEach(ss => {
b += ss.innerText
if (ss.querySelector(".u-icon-correct")) {
b += "√ "
} else {
b += "x "
}
})
}
})
copyTextToClipboard(b);
});
})();