在有道云笔记分享页面添加一个按钮，用于将笔记内容导出为Markdown文件。智能识别富文本和Markdown两种页面类型并进行相应处理。
// ==UserScript==
// @name 有道云笔记导出为markdown
// @name:en Youdao Note Exporter to Markdown
// @namespace https://github.com/your-username/youdao-note-exporter
// @version 3.0
// @description 在有道云笔记分享页面添加一个按钮，用于将笔记内容导出为Markdown文件。智能识别富文本和Markdown两种页面类型并进行相应处理。
// @description:en Add a button on Youdao Note share pages to export content as a Markdown file. Intelligently handles both rich text and Markdown note types.
// @author SkyForever
// @match https://share.note.youdao.com/*
// @match https://note.youdao.com/ynoteshare/*
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// --- 富文本解析模块 (旧版页面) ---
const richTextParser = {
parseNode: function(node) {
if (node.nodeType === 3) return node.textContent;
if (node.nodeType !== 1) return '';
let innerMarkdown = Array.from(node.childNodes).map(child => this.parseNode(child)).join('');
const isBold = node.style.fontWeight === 'bold' || node.classList.contains('bold');
if (isBold && innerMarkdown.trim() !== '') {
if (!innerMarkdown.startsWith('**') && !innerMarkdown.endsWith('**')) {
innerMarkdown = `**${innerMarkdown}**`;
}
}
if (node.tagName.toLowerCase() === 'a' && node.hasAttribute('href')) {
return `[${innerMarkdown}](${node.getAttribute('href')})`;
}
if (node.tagName.toLowerCase() === 'br') {
return '\n';
}
return innerMarkdown;
},
convertHeading: function(block) {
const level = parseInt(block.dataset.headingLevel.replace('h', ''), 10);
return `${'#'.repeat(level)} ${this.parseNode(block).trim()}`;
},
convertParagraph: function(block) {
const text = this.parseNode(block).trim();
return (text === '' && (block.innerHTML.includes(' ') || block.textContent.trim() === '')) ? '' : text;
},
convertImage: function(block) {
const img = block.querySelector('img');
return img ? `})` : '';
},
convertListItem: function(block) {
const li = block.querySelector('li');
if (!li) return null;
const text = this.parseNode(li).trim();
let prefix = '* ';
const placeholder = block.querySelector('.item-list-placeholder');
let indent = '';
if (placeholder && placeholder.style.left) {
const left = parseInt(placeholder.style.left, 10);
if (left > 0) indent = ' '.repeat(Math.round(left / 28));
}
if (block.hasAttribute('start')) {
prefix = `${placeholder ? placeholder.textContent.trim() : '1.'} `;
}
return `${indent}${prefix}${text}`;
},
convertCodeBlock: function(block) {
const langElement = block.querySelector('.change-language .css-u30aqu');
const lang = langElement ? langElement.textContent.trim().toLowerCase() : '';
const codeLines = Array.from(block.querySelectorAll('pre[data-block-type="code-line"]')).map(pre => pre.textContent);
return `\`\`\`${lang}\n${codeLines.join('\n')}\n\`\`\``;
},
run: function(editor) {
const blocks = Array.from(editor.children);
const markdownLines = [];
blocks.forEach(block => {
let mdLine = null;
const blockType = block.dataset.blockType;
if (block.tagName.toLowerCase() === 'ul' && blockType === 'list-item') {
mdLine = this.convertListItem(block);
} else {
switch (blockType) {
case 'heading': mdLine = this.convertHeading(block); break;
case 'paragraph': mdLine = this.convertParagraph(block); break;
case 'image': mdLine = this.convertImage(block); break;
case 'code': mdLine = this.convertCodeBlock(block); break;
default:
if (block.textContent && block.textContent.trim()) {
mdLine = this.parseNode(block);
}
break;
}
}
if (mdLine !== null) markdownLines.push(mdLine);
});
return formatMarkdownOutput(markdownLines);
}
};
// --- Markdown 原生页面解析模块 (新版页面) ---
const markdownParser = {
// 由于是原生Markdown渲染，直接从HTML标签转换
run: function(editor) {
const TurndownService = window.TurndownService || (function() {
// 内联一个简化的turndown版本或提示用户安装
alert('Turndown library not found. Please add `@require https://unpkg.com/turndown/dist/turndown.js` to the script header.');
return function() { this.turndown = text => text; };
})();
const turndownService = new TurndownService({ codeBlockStyle: 'fenced' });
return turndownService.turndown(editor.innerHTML);
}
};
/**
* 格式化Markdown输出，处理换行
*/
function formatMarkdownOutput(lines) {
let fullMarkdown = '';
for (let i = 0; i < lines.length; i++) {
if (lines[i].trim() === '' && (i === 0 || lines[i - 1].trim() === '')) continue;
fullMarkdown += lines[i];
const isCurrentList = /^((\s*[-*]|\s*\d+\.)\s)/.test(lines[i]);
const isNextList = (i + 1 < lines.length) && /^((\s*[-*]|\s*\d+\.)\s)/.test(lines[i + 1]);
fullMarkdown += (isCurrentList && isNextList) ? '\n' : '\n\n';
}
return fullMarkdown.trim();
}
/**
* 主导出函数
*/
function exportToMarkdown() {
const iframe = document.getElementById('content-body');
if (!iframe) {
alert('错误：未找到笔记内容的iframe框架！');
return;
}
const iframeDoc = iframe.contentDocument || iframe.contentWindow.document;
if (!iframeDoc) {
alert('错误：无法访问iframe的文档内容！');
return;
}
let markdownContent = '';
const noteTitle = document.querySelector('.file-name')?.title || 'youdao-note';
// 判断页面类型
if (iframeDoc.querySelector('.bulb-editor-inner')) { // 旧版富文本
console.log("检测到富文本笔记，使用富文本解析器。");
const editor = iframeDoc.querySelector('.bulb-editor-inner');
markdownContent = richTextParser.run(editor);
} else if (iframeDoc.querySelector('.markdown-body')) { // 新版Markdown
console.log("检测到Markdown笔记，使用Turndown解析器。");
// 动态加载turndown库
loadScript('https://unpkg.com/turndown/dist/turndown.js', () => {
const editor = iframeDoc.querySelector('.markdown-body');
markdownContent = markdownParser.run(editor);
downloadMarkdown(markdownContent, noteTitle);
});
return; // 异步执行，直接返回
} else {
alert('错误：未识别的笔记类型或内容未加载！');
return;
}
downloadMarkdown(markdownContent, noteTitle);
}
/**
* 统一的下载处理函数
*/
function downloadMarkdown(content, title) {
const safeFilename = title.replace(/[\\/:*?"<>|]/g, '-').replace(/\s+/g, '_') || 'youdao-note';
downloadFile(content, `${safeFilename}.md`);
}
/**
* 下载文件工具函数
*/
function downloadFile(content, filename) {
const blob = new Blob([content], { type: 'text/markdown;charset=utf-8' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
}
/**
* 动态加载外部JS脚本
*/
function loadScript(url, callback) {
if (window.TurndownService) { // 如果已加载，直接回调
callback();
return;
}
const script = document.createElement('script');
script.src = url;
script.onload = callback;
script.onerror = () => alert('加载Turndown库失败，请检查网络连接或脚本设置。');
document.head.appendChild(script);
}
/**
* 在页面上创建并添加导出按钮
*/
function addExportButton() {
if (document.getElementById('export-md-button')) return;
const button = document.createElement('button');
button.id = 'export-md-button';
button.textContent = '导出为MD';
button.style.position = 'fixed';
button.style.bottom = '20px';
button.style.right = '20px';
button.style.zIndex = '9999';
button.style.padding = '10px 15px';
button.style.backgroundColor = '#4CAF50';
button.style.color = 'white';
button.style.border = 'none';
button.style.borderRadius = '5px';
button.style.cursor = 'pointer';
button.style.fontSize = '14px';
button.style.boxShadow = '0 2px 5px rgba(0,0,0,0.2)';
button.addEventListener('mouseover', () => button.style.backgroundColor = '#45a049');
button.addEventListener('mouseout', () => button.style.backgroundColor = '#4CAF50');
button.addEventListener('click', exportToMarkdown);
document.body.appendChild(button);
}
// 使用MutationObserver来监控DOM变化，确保iframe加载后能及时添加按钮
const observer = new MutationObserver((mutations, obs) => {
const iframe = document.getElementById('content-body');
if (iframe) {
const iframeDoc = iframe.contentDocument || iframe.contentWindow.document;
if (iframeDoc && (iframeDoc.querySelector('.bulb-editor-inner') || iframeDoc.querySelector('.markdown-body'))) {
addExportButton();
obs.disconnect(); // 找到后停止观察
}
}
});
observer.observe(document.body, {
childList: true,
subtree: true
});
})();