304 lines
8.6 KiB
HTML
304 lines
8.6 KiB
HTML
<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Markdown Editor</title>
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<style>
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:root {
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--border-color: #eee;
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--bg-color: #fafafa;
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--text-color: #333;
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--btn-border: #ddd;
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--code-bg: #f5f5f5;
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--scrollbar-color: #ccc;
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}
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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height: 100vh;
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display: flex;
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flex-direction: column;
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font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
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overflow: hidden;
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}
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.header {
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padding: 8px 20px;
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background: var(--bg-color);
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border-bottom: 1px solid var(--border-color);
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display: flex;
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justify-content: flex-end;
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align-items: center;
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font-size: 14px;
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color: var(--text-color);
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}
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.toolbar {
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display: flex;
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gap: 8px;
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}
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.btn {
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border: 1px solid var(--btn-border);
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background: white;
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padding: 4px 12px;
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border-radius: 4px;
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cursor: pointer;
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font-size: 14px;
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color: var(--text-color);
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min-width: 80px;
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text-align: center;
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transition: background-color 0.2s ease;
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}
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.btn:hover {
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background: var(--code-bg);
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}
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.content {
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display: flex;
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flex: 1;
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overflow: hidden;
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}
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#preview, #editor {
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width: 50%;
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height: 100%;
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padding: 20px;
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line-height: 1.6;
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}
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#preview {
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color: var(--text-color);
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border-right: 1px solid var(--border-color);
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overflow-y: auto;
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}
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#editor {
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font-family: monospace;
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font-size: 14px;
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border: none;
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outline: none;
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resize: none;
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overflow-y: auto;
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scrollbar-width: thin;
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scrollbar-color: var(--scrollbar-color) transparent;
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}
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#editor::-webkit-scrollbar {
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width: 8px;
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}
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#editor::-webkit-scrollbar-thumb {
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background-color: var(--scrollbar-color);
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border-radius: 4px;
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}
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#editor::-webkit-scrollbar-track {
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background-color: transparent;
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}
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.preview-content {
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height: auto;
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min-height: 100%;
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padding-right: 8px;
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}
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#preview h1, #preview h2, #preview h3 {
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margin: 16px 0;
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font-weight: 500;
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}
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#preview h1:first-child {
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margin-top: 0;
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}
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#preview p {
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margin: 12px 0;
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}
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#preview ul, #preview ol {
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padding-left: 24px;
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margin: 12px 0;
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}
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#preview code {
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background-color: var(--code-bg);
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padding: 2px 4px;
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border-radius: 3px;
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font-size: 0.9em;
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}
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#preview pre code {
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display: block;
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padding: 12px;
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overflow-x: auto;
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line-height: 1.45;
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}
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.toast {
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position: fixed;
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top: 20px;
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right: 20px;
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background: rgba(0, 0, 0, 0.8);
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color: white;
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padding: 8px 16px;
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border-radius: 4px;
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font-size: 14px;
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display: none;
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z-index: 1000;
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animation: fadeIn 0.3s ease;
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}
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@keyframes fadeIn {
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from { opacity: 0; transform: translateY(-10px); }
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to { opacity: 1; transform: translateY(0); }
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}
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</style>
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</head>
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<body>
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<div class="header">
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<div class="toolbar">
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<button class="btn" id="copyBtn">一键复制</button>
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<button class="btn" id="exportBtn">导出文本</button>
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</div>
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</div>
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<div class="content">
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<div id="preview">
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<div class="preview-content"></div>
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</div>
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<textarea id="editor" placeholder="在这里输入 Markdown 文本..."></textarea>
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</div>
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<div id="toast" class="toast"></div>
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<script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
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<script>
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document.addEventListener('DOMContentLoaded', function() {
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const editor = document.getElementById('editor');
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const preview = document.getElementById('preview');
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const previewContent = preview.querySelector('.preview-content');
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const toast = document.getElementById('toast');
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const copyBtn = document.getElementById('copyBtn');
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const exportBtn = document.getElementById('exportBtn');
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// Initialize marked with safe options
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marked.setOptions({
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breaks: true,
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gfm: true,
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headerIds: true,
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sanitize: false,
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highlight: function(code, lang) {
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return code;
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}
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});
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function showToast(message, duration = 2000) {
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toast.textContent = message;
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toast.style.display = 'block';
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setTimeout(() => {
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toast.style.display = 'none';
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}, duration);
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}
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function updatePreview() {
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try {
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const markdownText = editor.value;
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const htmlContent = marked.parse(markdownText);
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previewContent.innerHTML = htmlContent;
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} catch (error) {
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console.error('Markdown parsing error:', error);
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previewContent.innerHTML = '<p style="color: red;">Error parsing markdown</p>';
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}
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}
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function debounce(func, wait) {
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let timeout;
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return function(...args) {
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clearTimeout(timeout);
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timeout = setTimeout(() => func.apply(this, args), wait);
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};
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}
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const debouncedUpdate = debounce(updatePreview, 150);
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async function copyText() {
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try {
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await navigator.clipboard.writeText(editor.value);
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showToast('已复制到剪贴板');
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} catch (err) {
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console.error('Copy failed:', err);
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showToast('复制失败');
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}
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}
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function exportTxt() {
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try {
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const text = editor.value;
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const blob = new Blob([text], { type: 'text/plain' });
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const url = URL.createObjectURL(blob);
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const a = document.createElement('a');
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const timestamp = new Date().toISOString().slice(0,19).replace(/[-:]/g, '');
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a.href = url;
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a.download = `markdown_${timestamp}.txt`;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(url);
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showToast('已导出为文本文件');
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} catch (err) {
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console.error('Export failed:', err);
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showToast('导出失败');
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}
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}
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// Event Listeners
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editor.addEventListener('input', debouncedUpdate);
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copyBtn.addEventListener('click', copyText);
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exportBtn.addEventListener('click', exportTxt);
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// Sync scroll
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editor.addEventListener('scroll', () => {
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const percentage = editor.scrollTop / (editor.scrollHeight - editor.clientHeight);
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preview.scrollTop = percentage * (preview.scrollHeight - preview.clientHeight);
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});
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// Initial content
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const initialText = `# Markdown 编辑器
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## 欢迎使用！
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这是一个简单的 Markdown 编辑器。
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### 主要功能：
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1. 实时预览
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2. 一键复制内容
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3. 导出文本文件
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4. 支持常用 Markdown 语法
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### 快速开始：
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- 在右侧输入 Markdown 文本
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- 在左侧查看实时预览
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- 使用顶部按钮进行操作
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\`\`\`markdown
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# 示例代码
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**粗体** 和 *斜体*
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- 列表项
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- 另一个列表项
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\`\`\``;
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editor.value = initialText;
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updatePreview();
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});
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</script>
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</body>
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</html>
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