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ChatGPT / assets /Kelpy-Codos.js
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Duplicate from JohnSmith9982/ChuanhuChatGPT
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// ==UserScript==
// @name Kelpy Codos
// @namespace https://github.com/Keldos-Li/Kelpy-Codos
// @version 1.0.5
// @author Keldos; https://keldos.me/
// @description Add copy button to PRE tags before CODE tag, for Chuanhu ChatGPT especially.
// Based on Chuanhu ChatGPT version: ac04408 (2023-3-22)
// @license GPL-3.0
// @grant none
// ==/UserScript==
(function () {
'use strict';
function addCopyButton(pre) {
var code = pre.querySelector('code');
if (!code) {
return; // 如果没有找到 <code> 元素，则不添加按钮
}
var firstChild = code.firstChild;
if (!firstChild) {
return; // 如果 <code> 元素没有子节点，则不添加按钮
}
var button = document.createElement('button');
button.textContent = '\uD83D\uDCCE'; // 使用 📎 符号作为“复制”按钮的文本
button.style.position = 'relative';
button.style.float = 'right';
button.style.fontSize = '1em'; // 可选：调整按钮大小
button.style.background = 'none'; // 可选：去掉背景颜色
button.style.border = 'none'; // 可选：去掉边框
button.style.cursor = 'pointer'; // 可选：显示指针样式
button.addEventListener('click', function () {
var range = document.createRange();
range.selectNodeContents(code);
range.setStartBefore(firstChild); // 将范围设置为第一个子节点之前
var selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
try {
var success = document.execCommand('copy');
if (success) {
button.textContent = '\u2714';
setTimeout(function () {
button.textContent = '\uD83D\uDCCE'; // 恢复按钮为“复制”
}, 2000);
} else {
button.textContent = '\u2716';
}
} catch (e) {
console.error(e);
button.textContent = '\u2716';
}
selection.removeAllRanges();
});
code.insertBefore(button, firstChild); // 将按钮插入到第一个子元素之前
}
function handleNewElements(mutationsList, observer) {
for (var mutation of mutationsList) {
if (mutation.type === 'childList') {
for (var node of mutation.addedNodes) {
if (node.nodeName === 'PRE') {
addCopyButton(node);
}
}
}
}
}
var observer = new MutationObserver(handleNewElements);
observer.observe(document.documentElement, { childList: true, subtree: true });
document.querySelectorAll('pre').forEach(addCopyButton);
})();