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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import { create } from 'zustand'
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import type { FileNode } from '../types/file'
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interface SidebarState {
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isVisible: boolean
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rootPath: string | null
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tree: FileNode[]
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expandedDirs: Set<string>
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sidebarWidth: number
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setVisible: (visible: boolean) => void
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setRootPath: (path: string | null) => void
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setTree: (tree: FileNode[]) => void
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toggleDir: (path: string) => void
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setSidebarWidth: (width: number) => void
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}
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export const useSidebarStore = create<SidebarState>((set) => ({
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isVisible: true,
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rootPath: null,
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tree: [],
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expandedDirs: new Set<string>(),
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sidebarWidth: 240,
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setVisible: (visible) => set({ isVisible: visible }),
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setRootPath: (path) => set({ rootPath: path }),
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setTree: (tree) => set({ tree }),
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toggleDir: (path) =>
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set(state => {
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const newSet = new Set(state.expandedDirs)
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if (newSet.has(path)) {
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newSet.delete(path)
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} else {
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newSet.add(path)
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}
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return { expandedDirs: newSet }
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}),
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setSidebarWidth: (width) => set({ sidebarWidth: width })
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}))
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