做了个demo空窗体

win_text_editor/lib/menus/app_menu.dart

@@ -27,7 +27,10 @@ class AppMenu extends StatelessWidget {
     return [
       const PopupMenuItem<String>(value: MenuConstants.templateParser, child: Text('XML解析')),
       const PopupMenuItem<String>(value: MenuConstants.contentSearch, child: Text('内容搜索')),
-      const PopupMenuItem<String>(value: MenuConstants.dataFormat, child: Text('格式化')),
+      const PopupMenuItem<String>(value: MenuConstants.dataCompare, child: Text('数据对比')),
+      const PopupMenuItem<String>(value: MenuConstants.dataFormat, child: Text('数据格式化')),
+      const PopupMenuDivider(),
+      const PopupMenuItem<String>(value: MenuConstants.demo, child: Text('Demo')),
     ];
   }
 

win_text_editor/lib/menus/menu_actions.dart

@@ -10,96 +10,95 @@ import 'dart:io';
 import 'package:win_text_editor/modules/module_router.dart';
 
 class MenuActions {
+  static final Map<String, Function(BuildContext)> _actionHandlers = {
+    MenuConstants.openFolder: _openFolder,
+    MenuConstants.contentSearch: _openContentSearch,
+    MenuConstants.templateParser: _openTemplateParser,
+    MenuConstants.dataFormat: _dataFormat,
+    MenuConstants.dataCompare: _dataCompare,
+    MenuConstants.demo: _demo,
+    MenuConstants.exit: _exitApplication,
+  };
+
   static Future<void> handleMenuAction(String value, BuildContext context) async {
-    switch (value) {
-      case MenuConstants.openFolder:
-        await _openFolder(context);
-        break;
-      case MenuConstants.contentSearch: // 新增内容搜索菜单项
-        await _openContentSearch(context);
-        break;
-      case MenuConstants.templateParser:
-        await _openTemplateParser(context);
-        break;
-      case MenuConstants.dataFormat:
-        await _dataFormat(context);
-        break;
-      case MenuConstants.exit:
-        _exitApplication();
-        break;
-      // 其他菜单项可以在这里添加处理逻辑
+    final handler = _actionHandlers[value];
+    if (handler != null) {
+      await handler(context);
     }
   }
 
   static Future<void> _openFolder(BuildContext context) async {
-    final fileProvider = Provider.of<FileProvider>(context, listen: false);
-    final String? selectedDirectory = await FilePicker.platform.getDirectoryPath();
-
-    if (selectedDirectory != null) {
-      await fileProvider.loadDirectory(selectedDirectory);
+    try {
+      final fileProvider = Provider.of<FileProvider>(context, listen: false);
+      final String? selectedDirectory = await FilePicker.platform.getDirectoryPath();
+      if (selectedDirectory != null) {
+        await fileProvider.loadDirectory(selectedDirectory);
+      }
+    } catch (e) {
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('打开文件夹失败: $e')));
     }
   }
 
   static Future<void> _openContentSearch(BuildContext context) async {
-    final tabManager = Provider.of<TabItemsController>(context, listen: false);
-
-    // Create new tab with unique ID
-    final tabId = DateTime.now().millisecondsSinceEpoch.toString();
-
-    await tabManager.addTab(
-      tabId,
-      title: "内容搜索",
-      type: RouterKey.contentSearch,
-      icon: Icons.search,
-      content: "",
-    );
+    await _openOrActivateTab(context, "内容搜索", RouterKey.contentSearch, Icons.search);
   }
 
   static Future<void> _openTemplateParser(BuildContext context) async {
-    final tabManager = Provider.of<TabItemsController>(context, listen: false);
+    await _openOrActivateTab(context, "XML解析", RouterKey.templateParser, Icons.auto_awesome_mosaic);
+  }
 
-    // 使用 firstWhereOrNull 查找选项卡
-    final existingTab = tabManager.tabs.firstWhereOrNull(
-      (tab) => tab.type == RouterKey.templateParser,
-    );
+  static Future<void> _dataFormat(BuildContext context) async {
+    await _openOrActivateTab(context, "数据格式化", RouterKey.dataFormat, Icons.date_range);
+  }
 
-    if (existingTab != null) {
-      // 如果存在，激活该选项卡
-      tabManager.setActiveTab(existingTab.id);
-    } else {
-      final tabId = DateTime.now().millisecondsSinceEpoch.toString();
-      await tabManager.addTab(
-        tabId,
-        title: "XML解析",
-        type: RouterKey.templateParser,
-        icon: Icons.auto_awesome_mosaic,
-        content: "",
-      );
-    }
+  static Future<void> _dataCompare(BuildContext context) async {
+    await _openOrActivateTab(context, "数据对比", RouterKey.dataCompare, Icons.compare);
   }
 
-  static Future<void> _dataFormat(BuildContext context) async {
-    final tabManager = Provider.of<TabItemsController>(context, listen: false);
+  static Future<void> _demo(BuildContext context) async {
+    await _openOrActivateTab(context, "Demo", RouterKey.demo, Icons.code);
+  }
 
-    // 使用 firstWhereOrNull 查找选项卡
-    final existingTab = tabManager.tabs.firstWhereOrNull((tab) => tab.type == RouterKey.dataFormat);
+  static Future<void> _openOrActivateTab(
+    BuildContext context,
+    String title,
+    String type,
+    IconData icon,
+  ) async {
+    try {
+      final tabManager = Provider.of<TabItemsController>(context, listen: false);
+      final existingTab = tabManager.tabs.firstWhereOrNull((tab) => tab.type == type);
 
-    if (existingTab != null) {
-      // 如果存在，激活该选项卡
-      tabManager.setActiveTab(existingTab.id);
-    } else {
-      final tabId = DateTime.now().millisecondsSinceEpoch.toString();
-      await tabManager.addTab(
-        tabId,
-        title: "数据格式化",
-        type: RouterKey.dataFormat,
-        icon: Icons.date_range,
-        content: "",
-      );
+      if (existingTab != null) {
+        tabManager.setActiveTab(existingTab.id);
+      } else {
+        final tabId = DateTime.now().millisecondsSinceEpoch.toString();
+        await tabManager.addTab(tabId, title: title, type: type, icon: icon, content: "");
+      }
+    } catch (e) {
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('打开标签页失败: $e')));
     }
   }
 
-  static void _exitApplication() {
-    exit(0);
+  static Future<void> _exitApplication(BuildContext context) async {
+    final shouldExit = await showDialog<bool>(
+      context: context,
+      builder:
+          (context) => AlertDialog(
+            title: const Text('退出应用'),
+            content: const Text('确定要退出吗？未保存的内容可能会丢失。'),
+            actions: [
+              TextButton(
+                onPressed: () => Navigator.of(context).pop(false),
+                child: const Text('取消'),
+              ),
+              TextButton(onPressed: () => Navigator.of(context).pop(true), child: const Text('退出')),
+            ],
+          ),
+    );
+
+    if (shouldExit ?? false) {
+      exit(0);
+    }
   }
 }

win_text_editor/lib/menus/menu_constants.dart

@@ -16,6 +16,8 @@ class MenuConstants {
   static const String contentSearch = "content_search";
   static const String templateParser = 'template_parser';
   static const String dataFormat = 'data_format';
+  static const String dataCompare = 'data_compare';
+  static const String demo = 'demo';
 
   // 编辑菜单项
   static const String undo = 'undo';

win_text_editor/lib/modules/content_search/controllers/content_search_controller.dart

@@ -4,7 +4,6 @@ import 'dart:async';
 import 'dart:io';
 
 import 'package:file_picker/file_picker.dart';
-import 'package:flutter/material.dart';
 import 'package:win_text_editor/framework/controllers/logger.dart';
 import 'package:win_text_editor/modules/content_search/models/search_mode.dart';
 import 'package:win_text_editor/modules/content_search/models/search_result.dart';

win_text_editor/lib/modules/data_compare/controllers/data_compare_controller.dart

@@ -0,0 +1,13 @@
+import 'package:win_text_editor/shared/base/base_content_controller.dart';
+
+class DataCompareController extends BaseContentController {
+  @override
+  void onOpenFile(String filePath) {
+    // TODO: implement onOpenFile
+  }
+
+  @override
+  void onOpenFolder(String folderPath) {
+    // TODO: implement onOpenFolder
+  }
+}

win_text_editor/lib/modules/data_compare/widgets/data_compare_view.dart

@@ -0,0 +1,41 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:win_text_editor/framework/controllers/tab_items_controller.dart';
+import 'package:win_text_editor/modules/data_compare/controllers/data_compare_controller.dart';
+
+class DataCompareView extends StatefulWidget {
+  final String tabId;
+  const DataCompareView({super.key, required this.tabId});
+
+  @override
+  State<DataCompareView> createState() => _DataCompareViewState();
+}
+
+class _DataCompareViewState extends State<DataCompareView> {
+  late final DataCompareController _controller;
+
+  get tabManager => Provider.of<TabItemsController>(context, listen: false);
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = tabManager.getController(widget.tabId) ?? DataCompareController();
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ChangeNotifierProvider.value(
+      value: _controller,
+      child: const Padding(
+        padding: EdgeInsets.all(8.0),
+        child: Column(children: [Expanded(flex: 1, child: Text("空白"))]),
+      ),
+    );
+  }
+}

win_text_editor/lib/modules/demo/controllers/demo_controller.dart

@@ -0,0 +1,13 @@
+import 'package:win_text_editor/shared/base/base_content_controller.dart';
+
+class DemoController extends BaseContentController {
+  @override
+  void onOpenFile(String filePath) {
+    // TODO: implement onOpenFile
+  }
+
+  @override
+  void onOpenFolder(String folderPath) {
+    // TODO: implement onOpenFolder
+  }
+}

win_text_editor/lib/modules/demo/widgets/demo_view.dart

@@ -0,0 +1,41 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:win_text_editor/framework/controllers/tab_items_controller.dart';
+import 'package:win_text_editor/modules/demo/controllers/demo_controller.dart';
+
+class DemoView extends StatefulWidget {
+  final String tabId;
+  const DemoView({super.key, required this.tabId});
+
+  @override
+  State<DemoView> createState() => _DemoViewState();
+}
+
+class _DemoViewState extends State<DemoView> {
+  late final DemoController _controller;
+
+  get tabManager => Provider.of<TabItemsController>(context, listen: false);
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = tabManager.getController(widget.tabId) ?? DemoController();
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ChangeNotifierProvider.value(
+      value: _controller,
+      child: const Padding(
+        padding: EdgeInsets.all(8.0),
+        child: Column(children: [Expanded(flex: 1, child: Text("Demo，就是一个空窗体，用于新增菜单时快速初始化（拷贝）。"))]),
+      ),
+    );
+  }
+}

win_text_editor/lib/modules/module_router.dart

@@ -1,8 +1,12 @@
 // modules/tab_content_registry.dart
 import 'package:flutter/material.dart';
 import 'package:win_text_editor/framework/models/tab_model.dart';
+import 'package:win_text_editor/modules/data_compare/controllers/data_compare_controller.dart';
+import 'package:win_text_editor/modules/data_compare/widgets/data_compare_view.dart';
 import 'package:win_text_editor/modules/data_format/controllers/data_format_controller.dart';
 import 'package:win_text_editor/modules/data_format/widgets/data_format_view.dart';
+import 'package:win_text_editor/modules/demo/controllers/demo_controller.dart';
+import 'package:win_text_editor/modules/demo/widgets/demo_view.dart';
 import 'package:win_text_editor/shared/base/base_content_controller.dart';
 import 'package:win_text_editor/modules/content_search/controllers/content_search_controller.dart';
 import 'package:win_text_editor/modules/template_parser/controllers/template_parser_controller.dart';
@@ -14,6 +18,8 @@ class RouterKey {
   static const String templateParser = 'template_parser';
   static const String dataFormat = 'data_format';
   static const String textEditor = 'text_editor';
+  static const String dataCompare = 'data_compare';
+  static const String demo = 'demo';
 }
 
 class ModuleRouter {
@@ -22,6 +28,8 @@ class ModuleRouter {
     RouterKey.contentSearch: (tab) => ContentSearchController(),
     RouterKey.templateParser: (tab) => TemplateParserController(),
     RouterKey.dataFormat: (tab) => DataFormatController(),
+    RouterKey.dataCompare: (tab) => DataCompareController(),
+    RouterKey.demo: (tab) => DemoController(),
   };
 
   // 映射UI组件
@@ -29,6 +37,8 @@ class ModuleRouter {
     RouterKey.contentSearch: (tab, controller) => ContentSearchView(tabId: tab.id),
     RouterKey.templateParser: (tab, controller) => TemplateParserView(tabId: tab.id),
     RouterKey.dataFormat: (tab, controller) => DataFormatView(tabId: tab.id),
+    RouterKey.dataCompare: (tab, controller) => DataCompareView(tabId: tab.id),
+    RouterKey.demo: (tab, controller) => DemoView(tabId: tab.id),
   };
 
   static BaseContentController? createControllerForTab(AppTab tab) {