雨霖铃
de7da9f1db
- 在 tailwind.config.js 中启用 darkMode: 'class' 并扩展语义化颜色变量 - 将全项目硬编码颜色（bg-white、text-gray-*、border-gray-* 等）替换为语义化类名 - 修复 popup/index.html 硬编码浅色背景色 - 同步更新相关单元测试中的类名断言
261 lines
9.1 KiB
TypeScript
261 lines
9.1 KiB
TypeScript
import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
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import { Code, Trash2, Printer, Download } from 'lucide-react';
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import { useLazyTranslation } from '@/utils/useLazyTranslation';
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import PageHeader from '@/components/PageHeader';
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import CopyButton from '@/components/CopyButton';
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import SwitchButtonGroup from '@/components/SwitchButtonGroup';
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import { useStorageState } from '@/utils/useStorageState';
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import type { MarkdownToHtmlPreviewMode } from '@/types/storage';
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import {
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markdownToHtml,
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wrapHtmlDocument,
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downloadHtmlFile,
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printHtml,
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SAMPLE_MARKDOWN,
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} from '@/utils/markdownToHtml';
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const isValidPreviewMode = (val: unknown): val is MarkdownToHtmlPreviewMode =>
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typeof val === 'string' && ['split', 'preview', 'html'].includes(val);
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const PREVIEW_STYLES = `
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.markdown-body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
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line-height: 1.6;
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color: inherit;
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}
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.markdown-body h1, .markdown-body h2, .markdown-body h3,
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.markdown-body h4, .markdown-body h5, .markdown-body h6 {
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margin-top: 20px;
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margin-bottom: 12px;
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font-weight: 600;
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line-height: 1.25;
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}
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.markdown-body h1 { font-size: 1.8em; border-bottom: 1px solid rgba(128,128,128,0.2); padding-bottom: 0.3em; }
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.markdown-body h2 { font-size: 1.5em; border-bottom: 1px solid rgba(128,128,128,0.2); padding-bottom: 0.3em; }
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.markdown-body h3 { font-size: 1.25em; }
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.markdown-body p { margin-top: 0; margin-bottom: 12px; }
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.markdown-body a { color: #1976d2; text-decoration: none; }
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.markdown-body a:hover { text-decoration: underline; }
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.markdown-body code {
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background-color: rgba(128,128,128,0.1);
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border-radius: 3px;
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font-size: 85%;
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padding: 0.2em 0.4em;
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font-family: 'SFMono-Regular', Consolas, monospace;
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}
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.markdown-body pre {
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background-color: rgba(128,128,128,0.08);
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border-radius: 6px;
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font-size: 85%;
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line-height: 1.45;
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overflow: auto;
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padding: 14px;
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margin: 0 0 12px;
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}
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.markdown-body pre code {
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background-color: transparent;
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border: 0;
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display: inline;
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line-height: inherit;
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margin: 0;
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padding: 0;
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word-wrap: normal;
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}
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.markdown-body blockquote {
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border-left: 0.25em solid rgba(128,128,128,0.3);
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color: rgba(128,128,128,0.7);
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margin: 0 0 12px;
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padding: 0 1em;
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}
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.markdown-body ul, .markdown-body ol { margin-top: 0; margin-bottom: 12px; padding-left: 2em; }
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.markdown-body li + li { margin-top: 0.25em; }
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.markdown-body img { max-width: 100%; box-sizing: content-box; }
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.markdown-body table {
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border-collapse: collapse;
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border-spacing: 0;
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display: block;
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overflow: auto;
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width: 100%;
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margin-bottom: 12px;
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}
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.markdown-body table th, .markdown-body table td {
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border: 1px solid rgba(128,128,128,0.25);
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padding: 6px 13px;
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}
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.markdown-body table tr:nth-child(2n) { background-color: rgba(128,128,128,0.05); }
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.markdown-body table th { font-weight: 600; background-color: rgba(128,128,128,0.05); }
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.markdown-body hr {
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background-color: rgba(128,128,128,0.2);
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border: 0;
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height: 0.25em;
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margin: 20px 0;
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padding: 0;
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}
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.markdown-body input[type="checkbox"] { margin-right: 0.5em; }
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`;
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export default function MarkdownToHtmlPage() {
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const { t } = useLazyTranslation('markdownToHtml');
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const [previewMode, setPreviewMode] = useStorageState(
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'markdownToHtml/previewMode',
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'split' as MarkdownToHtmlPreviewMode,
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isValidPreviewMode,
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);
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const [markdown, setMarkdown] = useState(SAMPLE_MARKDOWN);
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const iframeRef = useRef<HTMLIFrameElement>(null);
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const result = useMemo(() => markdownToHtml(markdown), [markdown]);
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const error = result.hasError ? (result.error ?? null) : null;
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useEffect(() => {
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const iframe = iframeRef.current;
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if (!iframe || !iframe.contentDocument) return;
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const doc = iframe.contentDocument;
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doc.open();
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doc.write(`<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<style>${PREVIEW_STYLES}</style>
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</head>
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<body class="markdown-body">${result.html}</body>
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</html>`);
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doc.close();
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}, [result.html]);
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const handleModeChange = useCallback(
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(newMode: MarkdownToHtmlPreviewMode) => {
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setPreviewMode(newMode);
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},
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[setPreviewMode],
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);
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const handleClear = useCallback(() => {
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setMarkdown('');
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}, []);
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const handlePrint = useCallback(() => {
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printHtml(result.html, t('pageTitle'));
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}, [result.html, t]);
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const handleDownload = useCallback(() => {
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const doc = wrapHtmlDocument(result.html, t('pageTitle'));
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downloadHtmlFile(doc, 'markdown-export.html');
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}, [result.html, t]);
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const showInput = previewMode !== 'preview';
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const showPreview = previewMode !== 'html';
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return (
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<div className="container mx-auto px-4 py-6 max-w-7xl">
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<PageHeader title={t('pageTitle')} subtitle={t('pageSubtitle')} icon={<Code size={20} />} />
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<div className="flex flex-col gap-4">
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{/* 工具栏 */}
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<div className="flex flex-wrap items-center justify-between gap-3">
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<SwitchButtonGroup
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value={previewMode}
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options={[
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{ value: 'split', label: t('splitMode') },
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{ value: 'preview', label: t('previewMode') },
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{ value: 'html', label: t('htmlMode') },
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]}
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onChange={handleModeChange}
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size="small"
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/>
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<div className="flex gap-2">
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<button
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onClick={handleClear}
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className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-foreground bg-background border border-input rounded-lg hover:bg-muted transition-colors"
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>
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<Trash2 size={14} />
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{t('clear')}
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</button>
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<button
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onClick={handlePrint}
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className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-foreground bg-background border border-input rounded-lg hover:bg-muted transition-colors"
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>
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<Printer size={14} />
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{t('print')}
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</button>
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<button
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onClick={handleDownload}
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className="inline-flex items-center gap-1.5 px-3 py-1.5 text-sm font-medium text-foreground bg-background border border-input rounded-lg hover:bg-muted transition-colors"
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>
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<Download size={14} />
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{t('download')}
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</button>
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</div>
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</div>
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{/* 错误提示 */}
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{error && (
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<div className="p-3 bg-red-50 border border-red-200 rounded-lg text-red-700 text-sm">
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{error}
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</div>
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)}
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{/* 主内容区 */}
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<div
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className={`grid gap-4 min-h-[500px] ${
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showInput && showPreview ? 'md:grid-cols-2' : 'grid-cols-1'
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}`}
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>
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{/* Markdown 输入区 */}
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{showInput && (
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<div className="border border-border rounded-xl overflow-hidden flex flex-col">
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<div className="flex items-center justify-between px-4 py-2 bg-primary/5 border-b border-border">
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<span className="text-xs font-bold text-muted-foreground">{t('inputLabel')}</span>
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<span className="text-xs text-muted-foreground">
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{t('charCount', { count: markdown.length })}
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</span>
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</div>
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<textarea
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value={markdown}
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onChange={(e) => setMarkdown(e.target.value)}
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placeholder={t('inputPlaceholder')}
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className="flex-1 min-h-[400px] p-4 font-mono text-[0.85rem] leading-relaxed resize-none focus:outline-none"
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/>
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</div>
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)}
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{/* 预览/输出区 */}
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{showPreview && (
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<div className="border border-border rounded-xl overflow-hidden flex flex-col">
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<div className="flex items-center justify-between px-4 py-2 bg-primary/5 border-b border-border">
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<span className="text-xs font-bold text-muted-foreground">
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{(previewMode as string) === 'html' ? t('htmlOutputLabel') : t('previewLabel')}
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</span>
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<div className="flex items-center gap-1">
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<span className="text-xs text-muted-foreground">
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{t('charCount', { count: result.htmlLength })}
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</span>
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<CopyButton text={result.html} size="small" />
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</div>
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</div>
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{(previewMode as string) === 'html' ? (
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<textarea
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value={result.html}
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readOnly
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className="flex-1 min-h-[400px] p-4 font-mono text-[0.8rem] leading-relaxed resize-none focus:outline-none bg-muted"
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/>
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) : (
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<div className="flex-1 p-4 min-h-[400px] overflow-auto bg-background">
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<iframe
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ref={iframeRef}
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title="markdown-preview"
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className="w-full h-full min-h-[380px] border-none bg-transparent"
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/>
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</div>
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)}
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</div>
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)}
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</div>
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</div>
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</div>
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);
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}
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