27 KiB
27 KiB
MarkLite 重构方案:TypeScript + React + IndexedDB
一、重构目标与原则
| 维度 | 现状 | 目标 |
|---|---|---|
| 语言 | JavaScript (无类型) | TypeScript 5.x (全量类型) |
| UI 框架 | 原生 DOM 操作 | React 18 (函数组件 + Hooks) |
| 状态管理 | 全局变量 + 闭包 | Zustand (轻量状态管理) |
| 持久化 | localStorage | IndexedDB (via Dexie.js) |
| 样式 | 纯 CSS | CSS Modules + CSS 变量 |
| 构建 | 无打包 | Vite + electron-vite |
| Markdown | marked.min.js (离线) | unified/remark/rehype 生态 |
| 代码高亮 | highlight.js (离线) | Shiki 或 rehype-highlight |
| 编辑器 | <textarea> |
CodeMirror 6 (专业编辑器) |
核心原则:
- 功能 100% 兼容 — 不丢失任何现有功能
- 渐进式重构 — 主进程/预加载脚本改动最小,重点重构渲染进程
- 类型安全 — 所有接口、IPC 通信、状态都有 TypeScript 类型
- 可测试性 — 业务逻辑与 UI 解耦,便于单元测试
二、新项目结构
MarkLite/
├── package.json
├── tsconfig.json # TypeScript 配置
├── electron.vite.config.ts # electron-vite 构建配置
├── .eslintrc.cjs # ESLint + TS 规则
│
├── src/
│ ├── main/ # ===== 主进程 =====
│ │ ├── index.ts # 入口:窗口创建、app 生命周期
│ │ ├── ipc-handlers.ts # 所有 ipcMain.handle 注册
│ │ ├── file-system.ts # 文件读写、目录树构建
│ │ ├── file-watcher.ts # fs.watch 封装(单文件 + 目录)
│ │ ├── window-manager.ts # 窗口创建、关闭拦截、单实例锁
│ │ └── menu.ts # 原生菜单(可选)
│ │
│ ├── preload/ # ===== 预加载 =====
│ │ └── index.ts # contextBridge 类型安全暴露
│ │
│ ├── renderer/ # ===== 渲染进程 (React) =====
│ │ ├── index.html # 入口 HTML
│ │ ├── main.tsx # React 入口 (createRoot)
│ │ ├── App.tsx # 根组件:布局编排
│ │ │
│ │ ├── components/ # ===== UI 组件 =====
│ │ │ ├── Toolbar/
│ │ │ │ ├── Toolbar.tsx
│ │ │ │ └── Toolbar.module.css
│ │ │ ├── TabBar/
│ │ │ │ ├── TabBar.tsx
│ │ │ │ ├── TabItem.tsx
│ │ │ │ └── TabBar.module.css
│ │ │ ├── Editor/
│ │ │ │ ├── Editor.tsx # CodeMirror 6 封装
│ │ │ │ ├── EditorToolbar.tsx # 格式化工具栏(加粗/斜体/链接等)
│ │ │ │ ├── useCodeMirror.ts # CodeMirror 初始化 Hook
│ │ │ │ └── Editor.module.css
│ │ │ ├── Preview/
│ │ │ │ ├── Preview.tsx # Markdown 渲染面板
│ │ │ │ ├── MarkdownRenderer.tsx # rehype/remark 处理
│ │ │ │ ├── useScrollSync.ts # 滚动同步 Hook
│ │ │ │ └── Preview.module.css
│ │ │ ├── Sidebar/
│ │ │ │ ├── Sidebar.tsx
│ │ │ │ ├── FileTree.tsx # 文件树递归组件
│ │ │ │ ├── FileTreeItem.tsx
│ │ │ │ ├── IndependentFiles.tsx
│ │ │ │ └── Sidebar.module.css
│ │ │ ├── SearchBar/
│ │ │ │ ├── SearchBar.tsx
│ │ │ │ └── SearchBar.module.css
│ │ │ ├── StatusBar/
│ │ │ │ ├── StatusBar.tsx
│ │ │ │ └── StatusBar.module.css
│ │ │ ├── WelcomeScreen/
│ │ │ │ ├── WelcomeScreen.tsx
│ │ │ │ └── WelcomeScreen.module.css
│ │ │ ├── ModifiedBanner/
│ │ │ │ └── ModifiedBanner.tsx
│ │ │ ├── DropOverlay/
│ │ │ │ └── DropOverlay.tsx
│ │ │ └── Toast/
│ │ │ ├── Toast.tsx
│ │ │ └── Toast.module.css
│ │ │
│ │ ├── stores/ # ===== 状态管理 (Zustand) =====
│ │ │ ├── tabStore.ts # 标签页状态
│ │ │ ├── editorStore.ts # 编辑器状态(视图模式、暗色主题等)
│ │ │ ├── sidebarStore.ts # 侧边栏状态
│ │ │ └── searchStore.ts # 搜索替换状态
│ │ │
│ │ ├── hooks/ # ===== 自定义 Hooks =====
│ │ │ ├── useTheme.ts # 暗色/亮色主题
│ │ │ ├── useKeyboard.ts # 全局快捷键
│ │ │ ├── useDragDrop.ts # 拖拽打开
│ │ │ ├── useFileWatch.ts # 外部修改监听
│ │ │ ├── useUnsavedWarning.ts # 未保存提醒
│ │ │ └── useSettings.ts # 用户设置读写
│ │ │
│ │ ├── lib/ # ===== 工具库 =====
│ │ │ ├── markdown.ts # Markdown 渲染管线(remark + rehype)
│ │ │ ├── sanitize.ts # HTML 安全过滤
│ │ │ ├── scrollSync.ts # 滚动同步算法(行号→DOM 映射)
│ │ │ ├── searchEngine.ts # 搜索匹配引擎(普通/正则/大小写)
│ │ │ ├── fileUtils.ts # 文件大小格式化、扩展名检查等
│ │ │ └── constants.ts # 常量定义(文件大小限制、扩展名列表等)
│ │ │
│ │ ├── db/ # ===== IndexedDB 层 =====
│ │ │ ├── schema.ts # Dexie 数据库定义 + 类型
│ │ │ ├── tabRepository.ts # 标签页状态 CRUD
│ │ │ ├── settingsRepository.ts # 用户设置 CRUD
│ │ │ └── recentFilesRepository.ts # 最近打开文件
│ │ │
│ │ ├── types/ # ===== 全局类型 =====
│ │ │ ├── tab.ts # Tab 接口
│ │ │ ├── file.ts # FileNode, DirTree 等
│ │ │ ├── settings.ts # Settings 接口
│ │ │ ├── search.ts # SearchMatch, SearchOptions 等
│ │ │ └── ipc.ts # IPC 通道类型映射
│ │ │
│ │ └── styles/ # ===== 全局样式 =====
│ │ ├── variables.css # CSS 变量(亮色/暗色)
│ │ ├── global.css # 全局 reset + 通用样式
│ │ ├── markdown-body.css # Markdown 预览样式
│ │ └── code-theme.css # 代码高亮主题
│ │
│ └── shared/ # ===== 主进程/渲染进程共享 =====
│ ├── ipc-channels.ts # IPC 通道名常量
│ └── types.ts # 共享类型定义
│
├── assets/
│ └── icon.ico
├── DESIGN.md
├── DEVSETUP.md
├── README.md
├── LICENSE
└── REFACTOR-PLAN.md # 本文件
三、技术选型详解
1. TypeScript — 类型安全
// src/renderer/types/tab.ts
export interface Tab {
id: string; // nanoid 生成
filePath: string | null;
content: string;
isModified: boolean;
scrollTop: number;
scrollLeft: number;
selectionStart: number;
selectionEnd: number;
previewScrollTop: number;
}
// src/renderer/types/ipc.ts — IPC 通道类型映射
export interface IpcInvokeMap {
'dialog:openFile': [void, OpenFileResult | null];
'file:read': [string, ReadFileResult];
'file:save': [SaveFilePayload, SaveFileResult];
'file:saveAs': [SaveAsPayload, SaveFileResult];
'file:reload': [void, ReloadFileResult];
'dir:readTree': [string, ReadDirTreeResult];
'dir:openDialog': [void, string | null];
'dir:watch': [string, void];
'tab:switched': [string | null, void];
'window:forceClose': [void, void];
}
// 类型安全的 IPC 调用封装
export function invoke<K extends keyof IpcInvokeMap>(
channel: K,
...args: IpcInvokeMap[K][0] extends void ? [] : [IpcInvokeMap[K][0]]
): Promise<IpcInvokeMap[K][1]> {
return window.electronAPI.invoke(channel, ...args);
}
2. Zustand — 状态管理
// src/renderer/stores/tabStore.ts
import { create } from 'zustand';
import { nanoid } from 'nanoid';
import type { Tab } from '../types/tab';
interface TabState {
tabs: Tab[];
activeTabId: string | null;
mruStack: string[];
// Actions
createTab: (filePath?: string | null, content?: string) => Tab;
closeTab: (tabId: string) => void;
switchToTab: (tabId: string) => void;
updateTabContent: (tabId: string, content: string) => void;
setModified: (tabId: string, modified: boolean) => void;
getActiveTab: () => Tab | null;
}
export const useTabStore = create<TabState>((set, get) => ({
tabs: [],
activeTabId: null,
mruStack: [],
createTab: (filePath = null, content = '') => {
// 检查是否已打开
if (filePath) {
const existing = get().tabs.find(t => t.filePath === filePath);
if (existing) {
get().switchToTab(existing.id);
return existing;
}
}
const tab: Tab = {
id: nanoid(),
filePath,
content,
isModified: false,
scrollTop: 0,
scrollLeft: 0,
selectionStart: 0,
selectionEnd: 0,
previewScrollTop: 0,
};
set(state => ({
tabs: [...state.tabs, tab],
activeTabId: tab.id,
}));
return tab;
},
closeTab: (tabId) => {
set(state => {
const index = state.tabs.findIndex(t => t.id === tabId);
if (index === -1) return state;
const newTabs = state.tabs.filter(t => t.id !== tabId);
const newMru = state.mruStack.filter(id => id !== tabId);
let newActiveId = state.activeTabId;
if (state.activeTabId === tabId) {
if (newTabs.length === 0) {
newActiveId = null;
} else {
const newIndex = Math.min(index, newTabs.length - 1);
newActiveId = newTabs[newIndex].id;
}
}
return {
tabs: newTabs,
activeTabId: newActiveId,
mruStack: newMru,
};
});
},
switchToTab: (tabId) => {
set(state => {
if (state.activeTabId === tabId) return state;
return {
activeTabId: tabId,
mruStack: [
state.activeTabId!,
...state.mruStack.filter(id => id !== state.activeTabId),
],
};
});
},
updateTabContent: (tabId, content) => {
set(state => ({
tabs: state.tabs.map(t =>
t.id === tabId ? { ...t, content, isModified: true } : t
),
}));
},
setModified: (tabId, modified) => {
set(state => ({
tabs: state.tabs.map(t =>
t.id === tabId ? { ...t, isModified: modified } : t
),
}));
},
getActiveTab: () => {
const { tabs, activeTabId } = get();
return tabs.find(t => t.id === activeTabId) ?? null;
},
}));
3. IndexedDB (Dexie.js) — 持久化
// src/renderer/db/schema.ts
import Dexie, { type EntityTable } from 'dexie';
interface TabSnapshot {
id: string; // 与 Tab.id 对应
filePath: string | null;
content: string;
scrollTop: number;
scrollLeft: number;
selectionStart: number;
selectionEnd: number;
previewScrollTop: number;
isModified: boolean;
updatedAt: number; // 时间戳
}
interface Settings {
id: string; // 固定为 'default'
darkMode: boolean;
viewMode: 'split' | 'editor' | 'preview';
splitRatio: number;
sidebarCollapsed: boolean;
sidebarWidth: number;
}
interface RecentFile {
id?: number; // 自增主键
filePath: string;
lastOpened: number;
}
const db = new Dexie('MarkLite') as Dexie & {
tabSnapshots: EntityTable<TabSnapshot, 'id'>;
settings: EntityTable<Settings, 'id'>;
recentFiles: EntityTable<RecentFile, 'id'>;
};
db.version(1).stores({
tabSnapshots: 'id, filePath, updatedAt',
settings: 'id',
recentFiles: '++id, filePath, lastOpened',
});
export { db };
export type { TabSnapshot, Settings, RecentFile };
// src/renderer/db/tabRepository.ts
import { db, type TabSnapshot } from './schema';
export const tabRepository = {
/** 保存所有标签快照(关闭时/定期) */
async saveAll(tabs: TabSnapshot[]): Promise<void> {
await db.transaction('rw', db.tabSnapshots, async () => {
await db.tabSnapshots.clear();
await db.tabSnapshots.bulkAdd(tabs);
});
},
/** 加载上次的标签快照 */
async loadAll(): Promise<TabSnapshot[]> {
return db.tabSnapshots.orderBy('updatedAt').toArray();
},
/** 清除所有快照(用户主动清除时) */
async clearAll(): Promise<void> {
await db.tabSnapshots.clear();
},
};
4. CodeMirror 6 — 编辑器
// src/renderer/components/Editor/useCodeMirror.ts
import { useEffect, useRef, useCallback } from 'react';
import { EditorState, type Extension } from '@codemirror/state';
import { EditorView, keymap, lineNumbers, highlightActiveLine } from '@codemirror/view';
import { defaultKeymap, history, historyKeymap } from '@codemirror/commands';
import { markdown, markdownLanguage } from '@codemirror/lang-markdown';
import { syntaxHighlighting, defaultHighlightStyle } from '@codemirror/language';
import { oneDark } from '@codemirror/theme-one-dark';
interface UseCodeMirrorOptions {
content: string;
onChange: (value: string) => void;
darkMode: boolean;
}
export function useCodeMirror({ content, onChange, darkMode }: UseCodeMirrorOptions) {
const containerRef = useRef<HTMLDivElement>(null);
const viewRef = useRef<EditorView | null>(null);
// 初始化
useEffect(() => {
if (!containerRef.current) return;
const extensions: Extension[] = [
lineNumbers(),
highlightActiveLine(),
history(),
keymap.of([...defaultKeymap, ...historyKeymap]),
markdown({ base: markdownLanguage }),
syntaxHighlighting(defaultHighlightStyle),
EditorView.updateListener.of(update => {
if (update.docChanged) {
onChange(update.state.doc.toString());
}
}),
EditorView.lineWrapping,
];
if (darkMode) extensions.push(oneDark);
const state = EditorState.create({
doc: content,
extensions,
});
const view = new EditorView({
state,
parent: containerRef.current,
});
viewRef.current = view;
return () => {
view.destroy();
viewRef.current = null;
};
}, [darkMode]); // darkMode 变化时重建
// 外部内容更新(切换标签时)
const setContent = useCallback((newContent: string) => {
const view = viewRef.current;
if (!view) return;
const current = view.state.doc.toString();
if (current !== newContent) {
view.dispatch({
changes: { from: 0, to: current.length, insert: newContent },
});
}
}, []);
return { containerRef, viewRef, setContent };
}
5. Markdown 渲染管线
// src/renderer/lib/markdown.ts
import { unified } from 'unified';
import remarkParse from 'remark-parse';
import remarkGfm from 'remark-gfm';
import remarkRehype from 'remark-rehype';
import rehypeRaw from 'rehype-raw';
import rehypeSanitize, { defaultSchema } from 'rehype-sanitize';
import rehypeStringify from 'rehype-stringify';
import rehypeHighlight from 'rehype-highlight';
const processor = unified()
.use(remarkParse)
.use(remarkGfm)
.use(remarkRehype, { allowDangerousHtml: true })
.use(rehypeRaw)
.use(rehypeSanitize, {
...defaultSchema,
attributes: {
...defaultSchema.attributes,
img: [...(defaultSchema.attributes?.img ?? []), ['src']],
},
})
.use(rehypeHighlight)
.use(rehypeStringify);
export async function renderMarkdown(content: string): Promise<string> {
const result = await processor.process(content);
return String(result);
}
四、IndexedDB 替代 localStorage 的数据模型
| 原 localStorage Key | IndexedDB Store | 字段 | 说明 |
|---|---|---|---|
marklite-settings |
settings |
darkMode, viewMode, splitRatio, sidebarCollapsed, sidebarWidth | 用户偏好 |
| (无,标签状态丢失) | tabSnapshots |
id, filePath, content, scrollTop, ... | 新增:标签页状态持久化 |
| (无) | recentFiles |
filePath, lastOpened | 新增:最近打开文件列表 |
IndexedDB 优势:
- 存储容量大(localStorage 约 5-10MB,IndexedDB 可达数百 MB)
- 支持大文件内容缓存(当前 20MB 限制的文件也能存)
- 支持索引查询(按 filePath、updatedAt 查询)
- 异步 API,不阻塞 UI
- 标签页状态可持久化(关闭窗口后恢复所有标签)
五、状态管理架构
┌─────────────────────────────────────────────────────────┐
│ App.tsx (根组件) │
├─────────┬──────────┬──────────┬──────────┬──────────────┤
│Toolbar │ TabBar │ Sidebar │ Editor │ Preview │
│ │ │ │ (CM6) │ │
├─────────┴──────────┴──────────┴──────────┴──────────────┤
│ Zustand Stores │
│ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
│ │ tabStore │ │editorStore│ │sidebarStore│ │searchStore│ │
│ │ - tabs │ │- viewMode│ │- tree │ │- matches │ │
│ │- activeId│ │- darkMode│ │- expanded │ │- index │ │
│ │ - mru │ │- splitPct│ │- rootPath │ │- options │ │
│ └────┬─────┘ └────┬─────┘ └────┬─────┘ └──────────┘ │
│ │ │ │ │
│ ┌────▼────────────▼────────────▼────────────────────┐ │
│ │ IndexedDB (Dexie.js) │ │
│ │ tabSnapshots │ settings │ recentFiles │ │
│ └───────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────┘
六、主进程重构(改动最小)
主进程保持 Electron 原生,仅将 JS → TS,逻辑不变:
// src/main/file-system.ts — 类型安全的文件操作
import { readFile, writeFile, stat, readdir } from 'fs/promises';
import { join, extname } from 'path';
import type { FileNode, ReadFileResult, SaveFileResult } from '../shared/types';
const ALLOWED_EXTENSIONS = ['.md', '.markdown', '.txt'] as const;
const MAX_FILE_SIZE = 20 * 1024 * 1024; // 20MB
export async function readFileContent(filePath: string): Promise<ReadFileResult> {
const stats = await stat(filePath);
if (stats.size > MAX_FILE_SIZE) {
return { success: false, error: `文件过大 (${formatBytes(stats.size)})` };
}
let content = await readFile(filePath, 'utf-8');
// 去除 BOM
if (content.charCodeAt(0) === 0xFEFF) content = content.slice(1);
return { success: true, content };
}
export async function buildDirTree(dirPath: string): Promise<FileNode[]> {
const entries = await readdir(dirPath, { withFileTypes: true });
const result: FileNode[] = [];
for (const entry of entries) {
if (shouldSkip(entry.name)) continue;
const fullPath = join(dirPath, entry.name);
if (entry.isDirectory()) {
result.push({
name: entry.name,
path: fullPath,
type: 'dir',
children: await buildDirTree(fullPath),
});
} else if (ALLOWED_EXTENSIONS.includes(extname(entry.name).toLowerCase() as any)) {
result.push({ name: entry.name, path: fullPath, type: 'file' });
}
}
return result.sort((a, b) => {
if (a.type !== b.type) return a.type === 'dir' ? -1 : 1;
return a.name.localeCompare(b.name);
});
}
七、滚动同步算法(保留现有逻辑)
现有基于块级元素 DOM 位置映射的算法非常优秀,直接用 TypeScript 重写:
// src/renderer/lib/scrollSync.ts
interface ScrollMap {
lineToPreviewMap: number[];
}
export function buildScrollMap(
markdown: string,
previewContainer: HTMLElement
): ScrollMap {
const lines = markdown.split('\n');
const totalLines = lines.length;
const lineToPreviewMap = new Array(totalLines).fill(0);
// 1. 识别块级元素起始行
const blockStarts = identifyBlockStarts(lines);
// 2. 获取预览 DOM 元素位置
const previewPositions = getPreviewPositions(previewContainer);
// 3. 块起始行 → 预览位置映射
// 4. 线性插值填充中间行
interpolateBlockPositions(blockStarts, previewPositions, lineToPreviewMap, totalLines);
return { lineToPreviewMap };
}
function identifyBlockStarts(lines: string[]): Set<number> {
const starts = new Set<number>();
let inCodeBlock = false;
for (let i = 0; i < lines.length; i++) {
const line = lines[i].trim();
if (line.match(/^```/)) {
if (!inCodeBlock) starts.add(i);
inCodeBlock = !inCodeBlock;
continue;
}
if (inCodeBlock) continue;
if (line.match(/^#{1,6}\s/) || line.match(/^[-*+]\s/) || line.match(/^\d+\.\s/) ||
line.match(/^>/) || line.match(/^\|/) || line.match(/^---/) || line === '') {
starts.add(i);
}
}
return starts;
}
八、CSS Modules + CSS 变量
/* src/renderer/styles/variables.css */
:root {
/* 亮色主题 */
--color-primary: #1a73e8;
--color-primary-dark: #1557b0;
--color-primary-light: rgba(26, 115, 232, 0.1);
--color-bg: #ffffff;
--color-bg-secondary: #f8f9fa;
--color-bg-tertiary: #f1f3f4;
--color-text: #333333;
--color-text-secondary: #5f6368;
--color-text-tertiary: #80868b;
--color-border: #e1e4e8;
--color-border-light: #f0f0f0;
--color-code-bg: #f6f8fa;
/* 布局 */
--toolbar-height: 36px;
--tabbar-height: 34px;
--statusbar-height: 24px;
--sidebar-width: 220px;
/* 字体 */
--font-ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
--font-mono: "Cascadia Code", "Fira Code", "JetBrains Mono", Consolas, monospace;
--font-size: 14px;
/* 圆角/阴影 */
--radius: 6px;
--shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
--shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
}
:root.dark {
--color-primary: #8ab4f8;
--color-primary-dark: #669df6;
--color-primary-light: rgba(138, 180, 248, 0.15);
--color-bg: #1e1e1e;
--color-bg-secondary: #252526;
--color-bg-tertiary: #2d2d2d;
--color-text: #d4d4d4;
--color-text-secondary: #9e9e9e;
--color-text-tertiary: #6e6e6e;
--color-border: #3e3e3e;
--color-border-light: #333333;
--color-code-bg: #2d2d2d;
}
九、构建配置
// electron.vite.config.ts
import { defineConfig, externalizeDepsPlugin } from 'electron-vite';
import react from '@vitejs/plugin-react';
export default defineConfig({
main: {
plugins: [externalizeDepsPlugin()],
build: {
outDir: 'dist/main',
rollupOptions: {
input: { index: 'src/main/index.ts' },
},
},
},
preload: {
plugins: [externalizeDepsPlugin()],
build: {
outDir: 'dist/preload',
rollupOptions: {
input: { index: 'src/preload/index.ts' },
},
},
},
renderer: {
plugins: [react()],
root: 'src/renderer',
build: {
outDir: 'dist/renderer',
rollupOptions: {
input: { index: 'src/renderer/index.html' },
},
},
},
});
// package.json (关键 scripts)
{
"scripts": {
"dev": "electron-vite dev",
"build": "electron-vite build && electron-builder",
"build:portable": "electron-vite build && electron-builder --win portable",
"lint": "eslint src --ext .ts,.tsx",
"typecheck": "tsc --noEmit"
}
}
十、依赖清单
{
"dependencies": {
"react": "^18.3",
"react-dom": "^18.3",
"zustand": "^5.0",
"dexie": "^4.0",
"nanoid": "^5.0",
"@codemirror/view": "^6.35",
"@codemirror/state": "^6.5",
"@codemirror/lang-markdown": "^6.3",
"@codemirror/theme-one-dark": "^6.1",
"@codemirror/commands": "^6.7",
"@codemirror/language": "^6.10",
"unified": "^11.0",
"remark-parse": "^11.0",
"remark-gfm": "^4.0",
"remark-rehype": "^11.1",
"rehype-raw": "^7.0",
"rehype-sanitize": "^6.0",
"rehype-stringify": "^10.0",
"rehype-highlight": "^7.0"
},
"devDependencies": {
"electron": "^28.0",
"electron-builder": "^25.0",
"electron-vite": "^3.0",
"@vitejs/plugin-react": "^4.3",
"typescript": "^5.6",
"@types/react": "^18.3",
"@types/react-dom": "^18.3",
"eslint": "^9.0",
"@typescript-eslint/eslint-plugin": "^8.0"
}
}
十一、分阶段实施计划
| 阶段 | 内容 | 预估工时 |
|---|---|---|
| Phase 0 | 脚手架搭建:electron-vite + React + TypeScript + ESLint | 0.5 天 |
| Phase 1 | 主进程 TypeScript 化(文件系统、IPC、窗口管理) | 1 天 |
| Phase 2 | IndexedDB 层 + Zustand stores + 设置持久化 | 1 天 |
| Phase 3 | 基础 UI:App 布局 + Toolbar + TabBar + StatusBar | 1 天 |
| Phase 4 | CodeMirror 6 编辑器集成 + 暗色主题 | 1 天 |
| Phase 5 | Markdown 预览(unified/rehype 管线)+ 滚动同步 | 1.5 天 |
| Phase 6 | 侧边栏文件树 + 独立文件区 | 1 天 |
| Phase 7 | 搜索替换(引擎 + 高亮 + 快捷键) | 1 天 |
| Phase 8 | 拖拽打开 + 文件监听 + 未保存提醒 + Toast | 0.5 天 |
| Phase 9 | 测试 + 修复 + 打包验证 | 1 天 |
| 总计 | 约 9.5 天 |
十二、关键决策说明
| 决策 | 理由 |
|---|---|
| CodeMirror 6 替代 textarea | 原生 undo/redo、语法高亮、行号内置、大文件性能优、扩展性强 |
| Zustand 替代全局变量 | React 原生状态管理,比 Redux 轻量 10 倍,支持 selector 优化 |
| Dexie.js 替代 localStorage | 异步 API、支持索引、容量大、支持复杂查询 |
| unified/rehype 替代 marked | 插件化架构、GFM 原生支持、安全过滤内置、社区活跃 |
| electron-vite 替代手动配置 | 开箱即用的 Electron + Vite 集成,HMR 热更新 |
| CSS Modules 替代纯 CSS | 样式隔离、TypeScript 类型提示、避免类名冲突 |
| 主进程保持 Electron 原生 | 主进程改动最小化,降低重构风险 |