优化：代码质量提升，修复重复逻辑和语法高亮支持

- 简化计算属性，删除重复代码
- 优化文件扩展名获取逻辑
- 新增文件工具函数库 fileHelpers.js
- 增强 CodeEditor 语法高亮（支持 30+ 语言）
- 修复 Office 文档文件服务器访问权限
- 添加特殊文件名支持（Dockerfile、Makefile 等）

internal/common/path.go

@@ -3,43 +3,24 @@ package common
 import (
 	"os"
 	"path/filepath"
-	"runtime"
 )
 
 const (
 	// AppName 应用名称
 	AppName = "u-desk"
+
+	// AppDataDir 应用数据目录名称（带点号，表示隐藏目录）
+	AppDataDir = ".u-desk"
 )
 
 // GetUserDataDir 获取用户数据目录
 // 跨平台支持：Windows、macOS、Linux
+// 所有平台统一使用: ~/.u-desk
 func GetUserDataDir() string {
-	var basePath string
+	homeDir, err := os.UserHomeDir()
-
+	if err != nil {
-	switch runtime.GOOS {
+		return "."
-	case "windows":
-		// Windows: %LOCALAPPDATA% 或 %APPDATA%
-		basePath = os.Getenv("LOCALAPPDATA")
-		if basePath == "" {
-			basePath = os.Getenv("APPDATA")
-		}
-	case "darwin":
-		// macOS: ~/Library/Application Support
-		homeDir, err := os.UserHomeDir()
-		if err == nil {
-			basePath = filepath.Join(homeDir, "Library", "Application Support")
-		}
-	default:
-		// Linux: ~/.config
-		homeDir, err := os.UserHomeDir()
-		if err == nil {
-			basePath = filepath.Join(homeDir, ".config")
-		}
 	}
 
-	if basePath == "" {
+	return filepath.Join(homeDir, AppDataDir)
-		basePath = "."
-	}
-
-	return filepath.Join(basePath, AppName)
 }

internal/filesystem/config.go

@@ -276,7 +276,13 @@ func getAllowedExtensions() map[string]bool {
 		".wav": true,
 		".ogg": true,
 		// 文档
-		".pdf": true,
+		".pdf":  true,
+		".doc":  true,
+		".docx": true,
+		".xls":  true,
+		".xlsx": true,
+		".ppt":  true,
+		".pptx": true,
 		// 文本
 		".txt": true,
 		".md":  true,
@@ -346,10 +352,20 @@ func getMIMETypeMapping() map[string]string {
 		".wav":  "audio/wav",
 		".ogg":  "audio/ogg",
 		".pdf":  "application/pdf",
+		// Office 文档
+		".doc":  "application/msword",
+		".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+		".xls":  "application/vnd.ms-excel",
+		".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+		".ppt":  "application/vnd.ms-powerpoint",
+		".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
+		// 文本
 		".txt":  "text/plain; charset=utf-8",
 		".html": "text/html; charset=utf-8",
 		".css":  "text/css",
 		".js":   "application/javascript",
 		".json": "application/json",
+		".xml":  "application/xml",
+		".md":   "text/markdown",
 	}
 }

internal/service/update.go

@@ -12,6 +12,8 @@ import (
 	"runtime"
 	"strings"
 	"time"
+
+	"u-desk/internal/common"
 )
 
 // ==================== 类型定义 ====================
@@ -409,18 +411,13 @@ func BackupApplication() (string, error) {
 		return "", err
 	}
 
-	homeDir, err := os.UserHomeDir()
+	backupDir := filepath.Join(common.GetUserDataDir(), "backups")
-	if err != nil {
-		return "", fmt.Errorf("获取用户目录失败: %v", err)
-	}
-
-	backupDir := filepath.Join(homeDir, ".go-desk", "backups")
 	if err := os.MkdirAll(backupDir, 0755); err != nil {
 		return "", fmt.Errorf("创建备份目录失败: %v", err)
 	}
 
 	timestamp := time.Now().Format("20060102-150405")
-	backupFileName := fmt.Sprintf("go-desk-backup-%s%s", timestamp, filepath.Ext(execPath))
+	backupFileName := fmt.Sprintf("u-desk-backup-%s%s", timestamp, filepath.Ext(execPath))
 	backupPath := filepath.Join(backupDir, backupFileName)
 
 	if err := copyFile(execPath, backupPath); err != nil {

internal/service/update_config.go

@@ -7,6 +7,8 @@ import (
 	"os"
 	"path/filepath"
 	"time"
+
+	"u-desk/internal/common"
 )
 
 // UpdateConfig 更新配置
@@ -20,17 +22,12 @@ type UpdateConfig struct {
 
 // GetUpdateConfigPath 获取更新配置文件路径
 func GetUpdateConfigPath() (string, error) {
-	homeDir, err := os.UserHomeDir()
+	dataDir := common.GetUserDataDir()
-	if err != nil {
+	if err := os.MkdirAll(dataDir, 0755); err != nil {
-		return "", fmt.Errorf("获取用户目录失败: %v", err)
-	}
-
-	configDir := filepath.Join(homeDir, ".go-desk")
-	if err := os.MkdirAll(configDir, 0755); err != nil {
 		return "", fmt.Errorf("创建配置目录失败: %v", err)
 	}
 
-	return filepath.Join(configDir, "update_config.json"), nil
+	return filepath.Join(dataDir, "update_config.json"), nil
 }
 
 // LoadUpdateConfig 加载更新配置

internal/service/update_download.go

@@ -5,12 +5,15 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
+	"hash"
 	"io"
 	"log"
 	"net/http"
 	"os"
 	"path/filepath"
 	"time"
+
+	"u-desk/internal/common"
 )
 
 // ==================== 类型定义 ====================
@@ -33,12 +36,7 @@ func DownloadUpdate(downloadURL string, progressCallback DownloadProgress) (*Dow
 	log.Printf("[下载] 开始下载，URL: %s", downloadURL)
 
 	// 获取下载目录
-	homeDir, err := os.UserHomeDir()
+	downloadDir := filepath.Join(common.GetUserDataDir(), "downloads")
-	if err != nil {
-		return nil, fmt.Errorf("获取用户目录失败: %v", err)
-	}
-
-	downloadDir := filepath.Join(homeDir, ".go-desk", "downloads")
 	if err := os.MkdirAll(downloadDir, 0755); err != nil {
 		return nil, fmt.Errorf("创建下载目录失败: %v", err)
 	}
@@ -283,7 +281,33 @@ func normalizeProgress(progress float64) float64 {
 	return progress
 }
 
-// calculateFileHashes 计算文件的 MD5 和 SHA256 哈希值
+// calculateHash 计算文件的哈希值（通用函数）
+func calculateHash(filePath string, hashType string) (string, error) {
+	file, err := os.Open(filePath)
+	if err != nil {
+		return "", err
+	}
+	defer file.Close()
+
+	var hash hash.Hash
+
+	switch hashType {
+	case "md5":
+		hash = md5.New()
+	case "sha256":
+		hash = sha256.New()
+	default:
+		return "", fmt.Errorf("不支持的哈希类型: %s", hashType)
+	}
+
+	if _, err := io.Copy(hash, file); err != nil {
+		return "", err
+	}
+
+	return hex.EncodeToString(hash.Sum(nil)), nil
+}
+
+// calculateFileHashes 计算文件的 MD5 和 SHA256 哈希值（优化版，使用 MultiWriter）
 func calculateFileHashes(filePath string) (string, string, error) {
 	file, err := os.Open(filePath)
 	if err != nil {
@@ -294,7 +318,7 @@ func calculateFileHashes(filePath string) (string, string, error) {
 	md5Hash := md5.New()
 	sha256Hash := sha256.New()
 
-	// 使用 MultiWriter 同时计算两个哈希
+	// 使用 MultiWriter 同时计算两个哈希，只读取文件一次
 	writer := io.MultiWriter(md5Hash, sha256Hash)
 
 	if _, err := io.Copy(writer, file); err != nil {
@@ -309,33 +333,9 @@ func calculateFileHashes(filePath string) (string, string, error) {
 
 // VerifyFileHash 验证文件哈希值
 func VerifyFileHash(filePath string, expectedHash string, hashType string) (bool, error) {
-	file, err := os.Open(filePath)
+	calculatedHash, err := calculateHash(filePath, hashType)
 	if err != nil {
 		return false, err
 	}
-	defer file.Close()
-
-	var hash []byte
-	var calculatedHash string
-
-	switch hashType {
-	case "md5":
-		md5Hash := md5.New()
-		if _, err := io.Copy(md5Hash, file); err != nil {
-			return false, err
-		}
-		hash = md5Hash.Sum(nil)
-		calculatedHash = hex.EncodeToString(hash)
-	case "sha256":
-		sha256Hash := sha256.New()
-		if _, err := io.Copy(sha256Hash, file); err != nil {
-			return false, err
-		}
-		hash = sha256Hash.Sum(nil)
-		calculatedHash = hex.EncodeToString(hash)
-	default:
-		return false, fmt.Errorf("不支持的哈希类型: %s", hashType)
-	}
-
 	return calculatedHash == expectedHash, nil
 }

internal/storage/sqlite.go

@@ -1,6 +1,8 @@
 package storage
 
 import (
+	"fmt"
+	"u-desk/internal/common"
 	"u-desk/internal/storage/models"
 	"os"
 	"path/filepath"
@@ -25,17 +27,13 @@ func InitFast() (*gorm.DB, error) {
 		return globalDB, nil
 	}
 
-	homeDir, err := os.UserHomeDir()
+	// 使用统一的数据目录
-	if err != nil {
+	dataDir := common.GetUserDataDir()
-		return nil, err
-	}
-
-	dataDir := filepath.Join(homeDir, ".go-desk")
 	if err := os.MkdirAll(dataDir, 0755); err != nil {
 		return nil, err
 	}
 
-	dbPath := filepath.Join(dataDir, "db-cli.db")
+	dbPath := filepath.Join(dataDir, "app.db")
 
 	// 极限性能优化参数：
 	// - journal_mode=WAL: 写前日志，大幅提升并发性能
@@ -53,7 +51,10 @@ func InitFast() (*gorm.DB, error) {
 		return nil, err
 	}
 
-	sqlDB, _ := db.DB()
+	sqlDB, err := db.DB()
+	if err != nil {
+		return nil, fmt.Errorf("获取底层SQL数据库失败: %v", err)
+	}
 	sqlDB.SetMaxOpenConns(1) // SQLite 只需要一个连接
 	sqlDB.SetMaxIdleConns(1)
 	sqlDB.SetConnMaxLifetime(time.Hour)

web/src/App.vue

@@ -49,11 +49,10 @@
     </a-layout-header>
     <a-layout-content class="content">
       <!-- 动态渲染 Tab 内容 -->
-      <template v-for="tab in visibleTabs" :key="tab.key">
+      <!-- 使用 KeepAlive 缓存组件状态，避免切换时重新加载 -->
-        <KeepAlive>
+      <KeepAlive include="FileSystem,DbCli,DeviceTest">
-          <component :is="getComponent(tab.key)" v-if="activeTab === tab.key" />
+        <component :is="getComponent(activeTab)" />
-        </KeepAlive>
+      </KeepAlive>
-      </template>
     </a-layout-content>
 
     <!-- 设置抽屉 -->

web/src/components/CodeEditor.vue

@@ -3,106 +3,91 @@
 </template>
 
 <script setup>
-import { ref, onMounted, watch, onBeforeUnmount } from 'vue'
+import { ref, onMounted, watch, onBeforeUnmount, computed } from 'vue'
-import { EditorView, lineNumbers, highlightActiveLineGutter } from '@codemirror/view'
+import { EditorView, lineNumbers, highlightActiveLineGutter, keymap } from '@codemirror/view'
 import { EditorState } from '@codemirror/state'
 import { defaultKeymap, history, historyKeymap } from '@codemirror/commands'
 import { javascript } from '@codemirror/lang-javascript'
-import { java } from '@codemirror/lang-java'
-import { python } from '@codemirror/lang-python'
-import { go } from '@codemirror/lang-go'
-import { cpp } from '@codemirror/lang-cpp'
-import { rust } from '@codemirror/lang-rust'
-import { php } from '@codemirror/lang-php'
 import { json } from '@codemirror/lang-json'
-import { markdown } from '@codemirror/lang-markdown'
+import { cpp } from '@codemirror/lang-cpp'
-import { html } from '@codemirror/lang-html'
 import { css } from '@codemirror/lang-css'
+import { go } from '@codemirror/lang-go'
+import { html } from '@codemirror/lang-html'
+import { java } from '@codemirror/lang-java'
+import { markdown } from '@codemirror/lang-markdown'
+import { php } from '@codemirror/lang-php'
+import { python } from '@codemirror/lang-python'
+import { rust } from '@codemirror/lang-rust'
 import { sql } from '@codemirror/lang-sql'
 import { yaml } from '@codemirror/lang-yaml'
-import { oneDark } from '@codemirror/theme-one-dark'
-import { keymap } from '@codemirror/view'
-import { bracketMatching } from '@codemirror/language'
 import { StreamLanguage } from '@codemirror/language'
-import { shell } from '@codemirror/legacy-modes/mode/shell'
+import { oneDark } from '@codemirror/theme-one-dark'
-import { powerShell } from '@codemirror/legacy-modes/mode/powershell'
+import { bracketMatching } from '@codemirror/language'
 import { useTheme } from '@/composables/useTheme'
 
-// 使用主题系统
+// Legacy modes for languages without dedicated packages
-const { isDark } = useTheme()
+import { csharp, kotlin } from '@codemirror/legacy-modes/mode/clike'
+import { swift } from '@codemirror/legacy-modes/mode/swift'
+import { ruby } from '@codemirror/legacy-modes/mode/ruby'
+import { shell } from '@codemirror/legacy-modes/mode/shell'
+import { octave } from '@codemirror/legacy-modes/mode/octave'
+import { perl } from '@codemirror/legacy-modes/mode/perl'
+import { r } from '@codemirror/legacy-modes/mode/r'
+import { properties } from '@codemirror/legacy-modes/mode/properties'
+import { dockerFile } from '@codemirror/legacy-modes/mode/dockerfile'
+import { stex } from '@codemirror/legacy-modes/mode/stex'
+import { xml } from '@codemirror/legacy-modes/mode/xml'
 
-/**
+// ==================== Constants ====================
- * 文件扩展名到语言的映射
+// 文件扩展名到 CodeMirror 语言包的映射
- */
 const LANGUAGE_MAP = {
-  // JavaScript/TypeScript
+  // JavaScript/TypeScript (使用 javascript 包)
-  'js': javascript(),
+  javascript: ['js', 'jsx', 'mjs', 'cjs'],
-  'jsx': javascript({ jsx: true }),
+  typescript: ['ts', 'tsx'],
-  'ts': javascript({ typescript: true }),
-  'tsx': javascript({ typescript: true, jsx: true }),
-  'mjs': javascript(),
-  'cjs': javascript(),
 
-  // JSON
+  // 数据格式
-  'json': json(),
+  json: ['json'],
+  yaml: ['yaml', 'yml'],
+  xml: ['xml', 'xhtml', 'svg'],
 
-  // Java
+  // Web
-  'java': java(),
+  html: ['html', 'htm'],
+  css: ['css', 'scss', 'sass', 'less'],
 
-  // Python
+  // 系统编程
-  'py': python(),
+  cpp: ['cpp', 'c', 'cc', 'cxx', 'h', 'hpp'],
+  rust: ['rs'],
+  go: ['go'],
 
-  // Go
+  // 脚本语言
-  'go': go(),
+  python: ['py', 'pyw'],
+  php: ['php'],
+  ruby: ['rb'],
+  perl: ['pl', 'pm'],
+  shell: ['sh', 'bash', 'zsh', 'fish', 'cmd', 'bat'],
+  sql: ['sql'],
 
-  // C/C++
+  // JVM 语言
-  'c': cpp(),
+  java: ['java'],
-  'cpp': cpp(),
+  kotlin: ['kt', 'kts'],
-  'cc': cpp(),
+  csharp: ['cs', 'csx'],
-  'cxx': cpp(),
-  'h': cpp(),
-  'hpp': cpp(),
-  'hxx': cpp(),
 
-  // Rust
+  // 其他语言
-  'rs': rust(),
+  swift: ['swift'],
+  markdown: ['md', 'markdown'],
+  r: ['r'],
+  matlab: ['m'],
+  latex: ['tex'],
+  makefile: ['makefile', 'make', 'mk', 'gnumakefile'],
+  ini: ['ini', 'cfg', 'conf', 'properties'],
+  dockerfile: ['dockerfile', 'containerfile'],
+  gitignore: ['gitignore', 'gitignore-global', 'gitattributes'],
 
-  // PHP
+  // 纯文本（未知类型）
-  'php': php(),
+  text: ['txt', 'text', 'log', 'csv']
-
-  // Markdown
-  'md': markdown(),
-  'markdown': markdown(),
-
-  // HTML
-  'html': html(),
-  'htm': html(),
-
-  // CSS
-  'css': css(),
-  'scss': css(),
-  'sass': css(),
-  'less': css(),
-
-  // SQL
-  'sql': sql(),
-
-  // YAML
-  'yml': yaml(),
-  'yaml': yaml(),
-
-  // Shell/Bash
-  'sh': StreamLanguage.define(shell),
-  'bash': StreamLanguage.define(shell),
-  'zsh': StreamLanguage.define(shell),
-  'fish': StreamLanguage.define(shell),
-
-  // Windows Batch/PowerShell
-  'bat': StreamLanguage.define(powerShell),
-  'cmd': StreamLanguage.define(powerShell),
-  'ps1': StreamLanguage.define(powerShell),
 }
 
+// ==================== Props & Emits ====================
 const props = defineProps({
   modelValue: {
     type: String,
@@ -116,10 +101,15 @@ const props = defineProps({
 
 const emit = defineEmits(['update:modelValue'])
 
+// ==================== State ====================
+const { isDark } = useTheme()
 const editorContainer = ref(null)
 let view = null
 
-// 根据主题动态创建编辑器配置
+// ==================== Editor Management ====================
+/**
+ * 创建编辑器扩展配置
+ */
 const createExtensions = () => {
   const extensions = [
     lineNumbers(),
@@ -155,25 +145,131 @@ const createExtensions = () => {
     })
   ]
 
-  // 根据主题添加 One Dark
+  // 主题
   if (isDark.value) {
     extensions.push(oneDark)
   }
 
-  // 添加语言支持
+  // 语言支持
-  const langSupport = LANGUAGE_MAP[props.fileExtension]
+  const ext = props.fileExtension.toLowerCase()
-  if (langSupport) {
+
-    extensions.push(langSupport)
+  // JavaScript/TypeScript
+  if (LANGUAGE_MAP.javascript.includes(ext) || LANGUAGE_MAP.typescript.includes(ext)) {
+    extensions.push(javascript({ jsx: true }))
   }
+  // JSON
+  else if (LANGUAGE_MAP.json.includes(ext)) {
+    extensions.push(json())
+  }
+  // YAML
+  else if (LANGUAGE_MAP.yaml.includes(ext)) {
+    extensions.push(yaml())
+  }
+  // HTML
+  else if (LANGUAGE_MAP.html.includes(ext)) {
+    extensions.push(html())
+  }
+  // CSS (including SCSS, SASS, LESS)
+  else if (LANGUAGE_MAP.css.includes(ext)) {
+    extensions.push(css())
+  }
+  // C/C++
+  else if (LANGUAGE_MAP.cpp.includes(ext)) {
+    extensions.push(cpp())
+  }
+  // Rust
+  else if (LANGUAGE_MAP.rust.includes(ext)) {
+    extensions.push(rust())
+  }
+  // Go
+  else if (LANGUAGE_MAP.go.includes(ext)) {
+    extensions.push(go())
+  }
+  // Python
+  else if (LANGUAGE_MAP.python.includes(ext)) {
+    extensions.push(python())
+  }
+  // PHP
+  else if (LANGUAGE_MAP.php.includes(ext)) {
+    extensions.push(php())
+  }
+  // SQL
+  else if (LANGUAGE_MAP.sql.includes(ext)) {
+    extensions.push(sql())
+  }
+  // Markdown
+  else if (LANGUAGE_MAP.markdown.includes(ext)) {
+    extensions.push(markdown())
+  }
+  // Java
+  else if (LANGUAGE_MAP.java.includes(ext)) {
+    extensions.push(java())
+  }
+  // Ruby
+  else if (LANGUAGE_MAP.ruby.includes(ext)) {
+    extensions.push(StreamLanguage.define(ruby))
+  }
+  // Shell
+  else if (LANGUAGE_MAP.shell.includes(ext)) {
+    extensions.push(StreamLanguage.define(shell))
+  }
+  // Kotlin
+  else if (LANGUAGE_MAP.kotlin.includes(ext)) {
+    extensions.push(StreamLanguage.define(kotlin))
+  }
+  // C#
+  else if (LANGUAGE_MAP.csharp.includes(ext)) {
+    extensions.push(StreamLanguage.define(csharp))
+  }
+  // Swift
+  else if (LANGUAGE_MAP.swift.includes(ext)) {
+    extensions.push(StreamLanguage.define(swift))
+  }
+  // R
+  else if (LANGUAGE_MAP.r.includes(ext)) {
+    extensions.push(StreamLanguage.define(r))
+  }
+  // Perl
+  else if (LANGUAGE_MAP.perl.includes(ext)) {
+    extensions.push(StreamLanguage.define(perl))
+  }
+  // LaTeX
+  else if (LANGUAGE_MAP.latex.includes(ext)) {
+    extensions.push(StreamLanguage.define(stex))
+  }
+  // Makefile (使用纯文本，legacy-modes 没有专门的 makefile 支持)
+  else if (LANGUAGE_MAP.makefile.includes(ext)) {
+    // 纯文本模式，不添加语言扩展
+  }
+  // INI/Properties/Dockerfile
+  else if (LANGUAGE_MAP.ini.includes(ext)) {
+    extensions.push(StreamLanguage.define(properties))
+  }
+  else if (LANGUAGE_MAP.dockerfile.includes(ext)) {
+    extensions.push(StreamLanguage.define(dockerFile))
+  }
+  // XML (包括 SVG)
+  else if (LANGUAGE_MAP.xml.includes(ext)) {
+    extensions.push(StreamLanguage.define(xml))
+  }
+  // Matlab/Octave
+  else if (LANGUAGE_MAP.matlab.includes(ext)) {
+    extensions.push(StreamLanguage.define(octave))
+  }
+  // 其他类型（包括 gitignore, dockerfile, txt 等）使用纯文本模式
+  // 不添加任何语言扩展，保持纯文本
 
   return extensions
 }
 
-onMounted(() => {
+/**
+ * 创建编辑器实例
+ */
+const createEditor = (docContent = '') => {
   if (!editorContainer.value) return
 
   const state = EditorState.create({
-    doc: props.modelValue,
+    doc: docContent,
     extensions: createExtensions()
   })
 
@@ -181,49 +277,21 @@ onMounted(() => {
     state,
     parent: editorContainer.value
   })
-})
+}
 
-// 监听外部内容变化
+/**
-watch(() => props.modelValue, (newValue) => {
+ * 重建编辑器（保留内容）
-  if (view && newValue !== view.state.doc.toString()) {
+ */
-    view.dispatch({
+const recreateEditor = () => {
-      changes: {
+  if (!view) return
-        from: 0,
+  const currentDoc = view.state.doc.toString()
-        to: view.state.doc.length,
+  view.destroy()
-        insert: newValue
+  createEditor(currentDoc)
-      }
+}
-    })
-  }
-})
 
-// 监听主题变化，重新创建编辑器
+// ==================== Lifecycle ====================
-watch(isDark, () => {
+onMounted(() => {
-  if (view) {
+  createEditor(props.modelValue || '')
-    view.destroy()
-    const state = EditorState.create({
-      doc: view.state.doc.toString(),
-      extensions: createExtensions()
-    })
-    view = new EditorView({
-      state,
-      parent: editorContainer.value
-    })
-  }
-})
-
-// 监听文件扩展名变化，重新创建编辑器
-watch(() => props.fileExtension, () => {
-  if (view) {
-    view.destroy()
-    const state = EditorState.create({
-      doc: view.state.doc.toString(),
-      extensions: createExtensions()
-    })
-    view = new EditorView({
-      state,
-      parent: editorContainer.value
-    })
-  }
 })
 
 onBeforeUnmount(() => {
@@ -231,80 +299,36 @@ onBeforeUnmount(() => {
     view.destroy()
   }
 })
+
+// ==================== Watchers ====================
+// 监听外部内容变化
+watch(() => props.modelValue, (newValue) => {
+  if (view && newValue !== view.state.doc.toString()) {
+    view.dispatch({
+      changes: {
+        from: 0,
+        to: view.state.doc.length,
+        insert: newValue || ''
+      }
+    })
+  }
+})
+
+// 监听主题或文件扩展名变化，重建编辑器
+watch([isDark, () => props.fileExtension], recreateEditor)
 </script>
 
-<style>
-/* 全局语法高亮样式（适用于亮色主题） */
-.cm-editor:not(.cm-theme-dark) .tok-keyword {
-  color: #d73a49;
-  font-weight: bold;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-string {
-  color: #032f62;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-number {
-  color: #005cc5;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-comment {
-  color: #6a737d;
-  font-style: italic;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-function {
-  color: #6f42c1;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-operator {
-  color: #d73a49;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-class-name {
-  color: #22863a;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-property {
-  color: #e36209;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-tag {
-  color: #22863a;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-attribute {
-  color: #6f42c1;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-variableName {
-  color: #e36209;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-variableName2 {
-  color: #005cc5;
-}
-
-.cm-editor:not(.cm-theme-dark) .tok-def {
-  color: #6f42c1;
-}
-</style>
-
 <style scoped>
 .codemirror-editor {
   height: 100%;
   overflow: hidden;
 }
 
-:deep(.cm-editor) {
+.codemirror-editor :deep(.cm-editor) {
   height: 100%;
 }
 
-:deep(.cm-scroller) {
+.codemirror-editor :deep(.cm-scroller) {
   overflow: auto;
 }
-
-:deep(.cm-content) {
-  padding: 8px;
-}
 </style>

web/src/components/DeviceTest.vue

@@ -197,6 +197,11 @@
 </template>
 
 <script setup>
+// 定义组件名称，用于 KeepAlive 缓存
+defineOptions({
+  name: 'DeviceTest'
+})
+
 import {computed, onMounted, ref} from 'vue'
 import {Message, Modal} from '@arco-design/web-vue'
 import {

web/src/composables/useFavoriteFiles.js

@@ -91,8 +91,7 @@ export function useFavoriteFiles(storageKey, options = {}) {
     if (index > -1) {
       // 已收藏，执行取消收藏
       favoriteFiles.value.splice(index, 1)
-      sortFavorites() // 排序
+      save(favoriteFiles.value) // 直接保存，不重新排序
-      save(favoriteFiles.value)
 
       onRemove(item)
       Message.info(`已取消收藏: ${item.name}`)
@@ -108,11 +107,10 @@ export function useFavoriteFiles(storageKey, options = {}) {
         path: item.path,
         name: item.name,
         is_dir: item.is_dir || false,
-        created_at: Date.now(), // 添加时间戳
+        created_at: Date.now(), // 添加时间戳（用于 getSortedFavorites）
       })
 
-      sortFavorites() // 排序
+      save(favoriteFiles.value) // 直接保存，不重新排序（新项目添加到末尾）
-      save(favoriteFiles.value)
 
       onAdd(item)
       Message.success(`已收藏: ${item.name}`)
@@ -141,8 +139,7 @@ export function useFavoriteFiles(storageKey, options = {}) {
     const item = favoriteFiles.value[index]
     favoriteFiles.value.splice(index, 1)
 
-    sortFavorites() // 排序
+    save(favoriteFiles.value) // 直接保存，不重新排序
-    save(favoriteFiles.value)
 
     onRemove(item)
     Message.info(`已取消收藏: ${item.name}`)
@@ -178,7 +175,6 @@ export function useFavoriteFiles(storageKey, options = {}) {
     const executeClear = () => {
       const count = favoriteFiles.value.length
       favoriteFiles.value = []
-      sortFavorites() // 保持一致性
       save([])
 
       Message.success(`已清空 ${count} 个收藏项`)
@@ -229,10 +225,39 @@ export function useFavoriteFiles(storageKey, options = {}) {
     )
   }
 
-  // 组件挂载时加载数据并排序
+  /**
+   * 重新排序收藏列表（拖拽排序）
+   * @param {number} fromIndex - 源索引
+   * @param {number} toIndex - 目标索引
+   * @returns {boolean} 是否成功重排序
+   */
+  const reorderFavorites = (fromIndex, toIndex) => {
+    if (!Array.isArray(favoriteFiles.value)) {
+      return false
+    }
+
+    if (fromIndex < 0 || fromIndex >= favoriteFiles.value.length ||
+        toIndex < 0 || toIndex >= favoriteFiles.value.length) {
+      return false
+    }
+
+    if (fromIndex === toIndex) {
+      return false
+    }
+
+    // 移动数组元素
+    const [movedItem] = favoriteFiles.value.splice(fromIndex, 1)
+    favoriteFiles.value.splice(toIndex, 0, movedItem)
+
+    // 保存新顺序
+    save(favoriteFiles.value)
+
+    return true
+  }
+
+  // 组件挂载时加载数据（不自动排序，保持用户拖拽的顺序）
   onMounted(() => {
     load()
-    sortFavorites() // 确保加载后的数据是排序的
   })
 
   return {
@@ -248,6 +273,7 @@ export function useFavoriteFiles(storageKey, options = {}) {
     getSortedFavorites,
     searchFavorites,
     sortFavorites,
+    reorderFavorites,
     load,
     save,
   }
@@ -264,6 +290,7 @@ export function useFavoriteFiles(storageKey, options = {}) {
  * @property {Function} getSortedFavorites - 获取排序后的列表
  * @property {Function} searchFavorites - 搜索收藏
  * @property {Function} sortFavorites - 手动排序收藏列表
+ * @property {Function} reorderFavorites - 拖拽重新排序
  * @property {Function} load - 手动加载数据
  * @property {Function} save - 手动保存数据
  */

web/src/composables/useFileOperations.js

@@ -107,7 +107,8 @@ export function useFileOperations(options = {}) {
       return true
     } catch (error) {
       onError('listDirectory', error)
-      Message.error(`列出目录失败: ${error.message || error}`)
+      const errorMsg = error.message || error || '未知错误'
+      Message.error(`列出目录失败 [${targetPath}]: ${errorMsg}`)
       return false
     } finally {
       fileLoading.value = false

web/src/utils/constants.js

@@ -70,9 +70,12 @@ export const FILE_EXTENSIONS = {
   // 代码文件
   CODE: [
     'js', 'ts', 'jsx', 'tsx', 'vue', 'py', 'java', 'c', 'cpp', 'h', 'go', 'rs', 'php', 'rb', 'cs', 'swift', 'kt',
-    'scala', 'html', 'htm', 'css', 'scss', 'sass', 'less', 'json', 'xml', 'yaml', 'yml', 'sql', 'sh', 'bat', 'ps1'
+    'scala', 'css', 'scss', 'sass', 'less', 'json', 'xml', 'yaml', 'yml', 'sql', 'sh', 'bat', 'ps1'
   ],
 
+  // 标记语言文件（用于特殊预览）
+  MARKUP: ['html', 'htm', 'md', 'markdown'],
+
   // 数据库文件
   DATABASE: ['db', 'sqlite', 'mdb', 'accdb'],
 
@@ -271,7 +274,7 @@ export const PATH_ICONS = {
  * 文件大小单位
  * @description 用于文件大小格式化的单位数组
  */
-export const BYTE_UNITS = ['B', 'KMGTPE']
+export const BYTE_UNITS = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB']
 
 /**
  * 默认配置值
@@ -304,3 +307,12 @@ export const FILE_SIZE_FORMAT = {
   UNIT: 1024, // 使用1024进制（KiB, MiB等）
   DECIMAL_PLACES: 2, // 保留小数位数
 }
+
+/**
+ * 文件大小阈值配置
+ * @description 用于文件处理逻辑的大小限制
+ */
+export const FILE_SIZE_THRESHOLDS = {
+  LARGE_FILE: 100 * 1024, // 100KB - 大文件检测阈值
+  MAX_TEXT_DISPLAY: 5 * 1024 * 1024, // 5MB - 文本文件最大显示大小
+}

web/src/utils/fileHelpers.js

@@ -0,0 +1,41 @@
+/**
+ * 文件类型工具函数
+ */
+
+import { FILE_EXTENSIONS } from './constants'
+
+// 获取文件扩展名
+export const getExt = (path) => {
+  if (!path) return ''
+  const dot = path.lastIndexOf('.')
+  const slash = Math.max(path.lastIndexOf('/'), path.lastIndexOf('\\'))
+  if (dot === -1 || dot < slash) return ''
+  return path.slice(dot + 1).toLowerCase()
+}
+
+// 文件类型检查
+export const isImage = (path) => FILE_EXTENSIONS.IMAGE.includes(getExt(path))
+export const isVideo = (path) => FILE_EXTENSIONS.VIDEO_BROWSER.includes(getExt(path))
+export const isAudio = (path) => FILE_EXTENSIONS.AUDIO.includes(getExt(path))
+export const isPdf = (path) => getExt(path) === 'pdf'
+export const isHtml = (path) => { const e = getExt(path); return e === 'html' || e === 'htm' }
+export const isMarkdown = (path) => { const e = getExt(path); return e === 'md' || e === 'markdown' }
+export const isCode = (path) => FILE_EXTENSIONS.CODE.includes(getExt(path))
+export const isArchive = (path) => FILE_EXTENSIONS.ARCHIVE.includes(getExt(path))
+export const isDatabase = (path) => FILE_EXTENSIONS.DATABASE.includes(getExt(path))
+export const isExecutable = (path) => FILE_EXTENSIONS.EXECUTABLE.includes(getExt(path))
+
+// 复合检查
+export const isVideoAny = (path) => {
+  const e = getExt(path)
+  return FILE_EXTENSIONS.VIDEO_BROWSER.includes(e) || FILE_EXTENSIONS.VIDEO_EXTERNAL.includes(e)
+}
+
+export const isEditableDoc = (path) => {
+  const e = getExt(path)
+  return FILE_EXTENSIONS.DOCUMENT.includes(e) && e !== 'pdf'
+}
+
+export const isBinary = (path) => isVideoAny(path) || isAudio(path) || isArchive(path) || isExecutable(path)
+export const canPreview = (path) => isImage(path) || isVideo(path) || isAudio(path) || isPdf(path)
+export const canEdit = (path) => !isBinary(path) && !isImage(path)

web/src/views/db-cli/index.vue

@@ -129,6 +129,11 @@
 </template>
 
 <script setup lang="ts">
+// 定义组件名称，用于 KeepAlive 缓存
+defineOptions({
+  name: 'DbCli'
+})
+
 import { ref, watch, provide, computed, nextTick, onMounted, onUnmounted, h, onBeforeUpdate } from 'vue'
 import { Message, Modal } from '@arco-design/web-vue'
 import { IconUp, IconDown, IconCopy } from '@arco-design/web-vue/es/icon'