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 { useEffect } from 'react'
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import { useEditorStore } from '../stores/editorStore'
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import { settingsRepository } from '../db/settingsRepository'
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export function useTheme() {
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const darkMode = useEditorStore(s => s.darkMode)
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const setDarkMode = useEditorStore(s => s.setDarkMode)
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// 初始化:从 IndexedDB 加载主题设置
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useEffect(() => {
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settingsRepository.load().then(settings => {
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const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches
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setDarkMode(settings.darkMode !== undefined ? settings.darkMode : prefersDark)
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})
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}, [setDarkMode])
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// 应用主题到 DOM
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useEffect(() => {
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document.documentElement.classList.toggle('dark', darkMode)
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settingsRepository.save({ darkMode })
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}, [darkMode])
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return { darkMode, toggleDarkMode: useEditorStore(s => s.toggleDarkMode) }
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}
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