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
2026-05-27 20:29:23 +08:00
parent c2cdba546b
commit 5e1c89d280
59 changed files with 4674 additions and 314 deletions
@@ -0,0 +1,183 @@
+import { ipcMain, dialog, BrowserWindow } from 'electron'
+import { readFileContent, saveFileContent, buildDirTree } from './file-system'
+import { FileWatcher, SidebarWatcher } from './file-watcher'
+import { IPC_CHANNELS } from './ipc-channels'
+import { stat } from 'fs/promises'
+import { join, basename } from 'path'
+
+export function registerIpcHandlers(
+  getMainWindow: () => BrowserWindow | null,
+  fileWatcher: FileWatcher,
+  sidebarWatcher: SidebarWatcher,
+  state: { activeFilePath: string | null; pendingFilePath: string | null }
+): void {
+  // 打开文件对话框
+  ipcMain.handle(IPC_CHANNELS.DIALOG_OPEN_FILE, async () => {
+    const win = getMainWindow()
+    if (!win) return null
+    try {
+      const result = await dialog.showOpenDialog(win, {
+        properties: ['openFile'],
+        filters: [{ name: 'Markdown 文件', extensions: ['md', 'markdown', 'txt'] }]
+      })
+      if (!result.canceled && result.filePaths.length > 0) {
+        const filePath = result.filePaths[0]
+        const fileResult = await readFileContent(filePath)
+        if (fileResult.success) {
+          state.activeFilePath = filePath
+          fileWatcher.start(filePath)
+          win.setTitle(`MarkLite - ${basename(filePath)}`)
+          return { filePath, content: fileResult.content }
+        }
+        return { error: fileResult.error }
+      }
+      return null
+    } catch (err) {
+      return { error: (err as Error).message }
+    }
+  })
+
+  // 读取文件
+  ipcMain.handle(IPC_CHANNELS.FILE_READ, async (_event: unknown, filePath: string) => {
+    return readFileContent(filePath)
+  })
+
+  // 保存文件
+  ipcMain.handle(IPC_CHANNELS.FILE_SAVE, async (_event: unknown, data: { filePath: string | null; content: string }) => {
+    const win = getMainWindow()
+    try {
+      if (data.filePath) {
+        fileWatcher.stop()
+        fileWatcher.setSelfWriting(true)
+        const result = await saveFileContent(data.filePath, data.content)
+        fileWatcher.setSelfWriting(false)
+        state.activeFilePath = data.filePath
+        setTimeout(() => {
+          if (state.activeFilePath === data.filePath && data.filePath) {
+            fileWatcher.start(data.filePath)
+          }
+        }, 300)
+        if (win && !win.isDestroyed()) {
+          win.setTitle(`MarkLite - ${basename(data.filePath)}`)
+        }
+        return result
+      } else {
+        if (!win) return { success: false, error: '窗口不可用' }
+        const saveResult = await dialog.showSaveDialog(win, {
+          filters: [{ name: 'Markdown 文件', extensions: ['md'] }]
+        })
+        if (!saveResult.canceled) {
+          const result = await saveFileContent(saveResult.filePath, data.content)
+          if (result.success) {
+            state.activeFilePath = saveResult.filePath
+            fileWatcher.start(saveResult.filePath)
+            win.setTitle(`MarkLite - ${basename(saveResult.filePath)}`)
+          }
+          return result
+        }
+        return { success: false, canceled: true }
+      }
+    } catch (err) {
+      fileWatcher.setSelfWriting(false)
+      fileWatcher.start(state.activeFilePath || '')
+      return { success: false, error: (err as Error).message }
+    }
+  })
+
+  // 另存为
+  ipcMain.handle(IPC_CHANNELS.FILE_SAVE_AS, async (_event: unknown, data: { content: string }) => {
+    const win = getMainWindow()
+    if (!win) return { success: false, error: '窗口不可用' }
+    try {
+      const result = await dialog.showSaveDialog(win, {
+        filters: [{ name: 'Markdown 文件', extensions: ['md'] }]
+      })
+      if (!result.canceled) {
+        const saveResult = await saveFileContent(result.filePath, data.content)
+        if (saveResult.success) {
+          state.activeFilePath = result.filePath
+          fileWatcher.start(result.filePath)
+          win.setTitle(`MarkLite - ${basename(result.filePath)}`)
+        }
+        return saveResult
+      }
+      return { success: false, canceled: true }
+    } catch (err) {
+      return { success: false, error: (err as Error).message }
+    }
+  })
+
+  // 获取当前路径
+  ipcMain.handle(IPC_CHANNELS.FILE_GET_CURRENT_PATH, () => state.activeFilePath)
+
+  // 文件统计
+  ipcMain.handle(IPC_CHANNELS.FILE_STATS, async (_event: unknown, filePath: string) => {
+    try {
+      const fileStat = await stat(filePath)
+      return { success: true, size: fileStat.size, mtime: fileStat.mtime.toISOString() }
+    } catch (err) {
+      return { success: false, error: (err as Error).message }
+    }
+  })
+
+  // 重新加载
+  ipcMain.handle(IPC_CHANNELS.FILE_RELOAD, async () => {
+    if (!state.activeFilePath) return { success: false, error: '没有打开的文件' }
+    const result = await readFileContent(state.activeFilePath)
+    return { ...result, filePath: state.activeFilePath }
+  })
+
+  // 目录树
+  ipcMain.handle(IPC_CHANNELS.DIR_READ_TREE, async (_event: unknown, dirPath: string) => {
+    try {
+      const tree = await buildDirTree(dirPath)
+      return { success: true, tree, rootPath: dirPath }
+    } catch (err) {
+      return { success: false, error: (err as Error).message }
+    }
+  })
+
+  // 打开文件夹对话框
+  ipcMain.handle(IPC_CHANNELS.DIR_OPEN_DIALOG, async () => {
+    const win = getMainWindow()
+    if (!win) return null
+    const result = await dialog.showOpenDialog(win, { properties: ['openDirectory'] })
+    if (!result.canceled && result.filePaths.length > 0) {
+      return result.filePaths[0]
+    }
+    return null
+  })
+
+  // 目录监听
+  ipcMain.handle(IPC_CHANNELS.DIR_WATCH, (_event: unknown, dirPath: string) => {
+    sidebarWatcher.start(dirPath)
+  })
+
+  ipcMain.handle(IPC_CHANNELS.DIR_UNWATCH, () => {
+    sidebarWatcher.stop()
+  })
+
+  // 标签切换
+  ipcMain.handle(IPC_CHANNELS.TAB_SWITCHED, (_event: unknown, filePath: string | null) => {
+    state.activeFilePath = filePath || null
+    fileWatcher.start(filePath || '')
+    const win = getMainWindow()
+    if (win && !win.isDestroyed()) {
+      win.setTitle(filePath ? `MarkLite - ${basename(filePath)}` : 'MarkLite')
+    }
+  })
+
+  // 窗口控制
+  ipcMain.handle(IPC_CHANNELS.WINDOW_FORCE_CLOSE, () => {
+    const win = getMainWindow()
+    if (win && !win.isDestroyed()) {
+      fileWatcher.stop()
+      win.removeAllListeners('close')
+      win.close()
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.WINDOW_CANCEL_CLOSE, () => {
+    // 重置关闭状态
+  })
+}