refactor: v2.0 全量重构 — TypeScript + React + Zustand + IndexedDB
技术栈升级: - JavaScript → TypeScript 5.6(全量类型安全) - 原生 DOM → React 18(函数组件 + Hooks) - 全局变量 → Zustand 5(轻量状态管理) - localStorage → IndexedDB / Dexie.js 4(大容量、异步、索引) - marked.js → unified / remark / rehype(插件化渲染管线) - 无打包 → electron-vite 3(HMR 热更新) - 纯 CSS → CSS Variables + CSS Modules 新增功能: - 标签页状态 IndexedDB 持久化(关闭后可恢复) - 最近打开文件列表 - 大文件虚拟化行号(>2000 行) - 搜索高亮二分查找优化 O(log N) - rehype-sanitize HTML 安全过滤 文件结构: - 7 个源文件 → 51 个模块化文件 - src/main/ 主进程(6 文件) - src/preload/ 预加载(1 文件) - src/renderer/ 渲染进程(42 文件:组件/hooks/stores/lib/db/types/styles) - src/shared/ 共享类型(2 文件) 构建验证: - TypeScript 检查零错误 - electron-vite build 成功 - 产物:main 15kB + preload 2kB + renderer 1.5MB
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@@ -0,0 +1,83 @@
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import * as fs from 'fs'
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import { BrowserWindow } from 'electron'
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export class FileWatcher {
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private watcher: fs.FSWatcher | null = null
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private currentPath: string | null = null
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private isSelfWriting = false
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constructor(private getMainWindow: () => BrowserWindow | null) {}
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start(filePath: string): void {
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this.stop()
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if (!filePath) return
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try {
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this.currentPath = filePath
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this.watcher = fs.watch(filePath, (eventType) => {
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if (eventType === 'change') {
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if (this.isSelfWriting) return
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const win = this.getMainWindow()
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if (win && !win.isDestroyed()) {
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win.webContents.send('file:externallyModified', filePath)
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}
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}
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})
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} catch {
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// silently ignore
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}
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}
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stop(): void {
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if (this.watcher) {
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this.watcher.close()
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this.watcher = null
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}
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}
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getCurrentPath(): string | null {
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return this.currentPath
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}
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setSelfWriting(value: boolean): void {
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this.isSelfWriting = value
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}
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}
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export class SidebarWatcher {
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private watcher: fs.FSWatcher | null = null
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private watchPath: string | null = null
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private refreshTimer: NodeJS.Timeout | null = null
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constructor(private getMainWindow: () => BrowserWindow | null) {}
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start(dirPath: string): void {
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this.stop()
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if (!dirPath) return
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try {
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this.watchPath = dirPath
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this.watcher = fs.watch(dirPath, { recursive: true }, () => {
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const win = this.getMainWindow()
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if (win && !win.isDestroyed()) {
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if (this.refreshTimer) clearTimeout(this.refreshTimer)
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this.refreshTimer = setTimeout(() => {
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win.webContents.send('sidebar:dirChanged')
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}, 300)
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}
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})
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} catch {
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// silently ignore
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}
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}
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stop(): void {
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if (this.watcher) {
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this.watcher.close()
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this.watcher = null
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}
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if (this.refreshTimer) {
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clearTimeout(this.refreshTimer)
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this.refreshTimer = null
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}
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this.watchPath = null
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}
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}
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