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解除超星学习通粘贴限制，支持纯文本粘贴
// ==UserScript==
// @name 超星学习通-超级粘贴 v4.0 creator Xp
// @namespace CXXXT_CJZT
// @version 4.0
// @description 解除超星学习通粘贴限制，支持纯文本粘贴
// @author DND
// @license MIT
// @match https://*.chaoxing.com/mooc-ans/*
// @match https://*.chaoxing.com/work/*
// @match https://*.chaoxing.com/study/*
// @run-at document-start
// @grant none
// ==/UserScript==
(function() {
'use strict';
console.log("超星学习通-超级粘贴 v4.0 启动");
// 方法1: 全局粘贴事件处理
document.addEventListener('paste', function(e) {
// 阻止默认粘贴行为
e.stopPropagation();
// 获取剪贴板文本
const clipboardData = e.clipboardData || window.clipboardData;
const pastedText = clipboardData.getData('text/plain');
if (pastedText && e.target) {
// 如果是可编辑区域
if (e.target.isContentEditable ||
e.target.tagName === 'TEXTAREA' ||
e.target.tagName === 'INPUT') {
// 阻止默认行为并插入纯文本
e.preventDefault();
document.execCommand('insertText', false, pastedText);
console.log("已处理粘贴内容:", pastedText.substring(0, 50) + "...");
}
}
}, true);
// 方法2: 定时检查并修复编辑器
function fixEditors() {
// 修复UEditor
if (window.UE && window.UE.instants) {
Object.values(window.UE.instants).forEach(editor => {
if (editor && !editor._fixed) {
try {
editor.removeListener('beforepaste', window.editorPaste);
editor.addListener('beforepaste', function(o, html) {
// 清除所有HTML标签，只保留纯文本
const tempDiv = document.createElement('div');
tempDiv.innerHTML = html.html;
const text = tempDiv.textContent || tempDiv.innerText || '';
html.html = text;
return true;
});
editor._fixed = true;
console.log("已修复UEditor:", editor.key);
} catch (err) {
console.log("修复UEditor失败:", err);
}
}
});
}
// 修复textarea和contenteditable元素
document.querySelectorAll('textarea, [contenteditable="true"]').forEach(element => {
if (!element._fixed) {
element.addEventListener('paste', function(e) {
e.stopPropagation();
const clipboardData = e.clipboardData || window.clipboardData;
const text = clipboardData.getData('text/plain');
if (text) {
e.preventDefault();
if (element.tagName === 'TEXTAREA') {
const start = element.selectionStart;
const end = element.selectionEnd;
element.value = element.value.substring(0, start) + text + element.value.substring(end);
element.selectionStart = element.selectionEnd = start + text.length;
} else {
document.execCommand('insertText', false, text);
}
// 触发输入事件
element.dispatchEvent(new Event('input', { bubbles: true }));
element.dispatchEvent(new Event('change', { bubbles: true }));
}
}, true);
element._fixed = true;
}
});
}
// 页面加载完成后开始修复
window.addEventListener('load', function() {
fixEditors();
// 每2秒检查一次新出现的编辑器
setInterval(fixEditors, 2000);
});
// 监听DOM变化，动态修复新出现的编辑器
const observer = new MutationObserver(function(mutations) {
let shouldFix = false;
mutations.forEach(function(mutation) {
if (mutation.addedNodes.length) {
shouldFix = true;
}
});
if (shouldFix) {
setTimeout(fixEditors, 100);
}
});
observer.observe(document.body, {
childList: true,
subtree: true
});
})();