文件加载正常

win_text_editor/lib/app/menus/menu_actions.dart

@@ -4,16 +4,23 @@ import 'package:provider/provider.dart';
 import 'package:win_text_editor/app/menus/menu_constants.dart';
 import 'package:win_text_editor/app/providers/file_provider.dart';
 import 'package:win_text_editor/app/providers/editor_provider.dart';
+import 'package:collection/collection.dart';
 import 'dart:io';
 
 class MenuActions {
+  // 定义模板解析选项卡的常量
+  static const String templateParserTabType = "template_parser";
+  static const String templateParserTabTitle = "模板解析";
+  static const IconData templateParserTabIcon = Icons.auto_awesome_mosaic;
+  static const String templateParserDefaultContent = "";
+
   static Future<void> handleMenuAction(String value, BuildContext context) async {
     switch (value) {
       case MenuConstants.openFolder:
         await _openFolder(context);
         break;
       case MenuConstants.templateParser:
-        _openTemplateParser(context);
+        await _openTemplateParser(context);
         break;
       case MenuConstants.exit:
         _exitApplication();
@@ -31,8 +38,26 @@ class MenuActions {
     }
   }
 
-  static void _openTemplateParser(BuildContext context) {
+  static Future<void> _openTemplateParser(BuildContext context) async {
-    Provider.of<EditorProvider>(context, listen: false).addTab();
+    final editorProvider = Provider.of<EditorProvider>(context, listen: false);
+
+    // 使用 firstWhereOrNull 查找选项卡
+    final existingTab = editorProvider.tabs.firstWhereOrNull(
+      (tab) => tab.type == templateParserTabType,
+    );
+
+    if (existingTab != null) {
+      // 如果存在，激活该选项卡
+      editorProvider.setActiveTab(existingTab.id);
+    } else {
+      // 如果不存在，创建新选项卡
+      await editorProvider.addTab(
+        title: templateParserTabTitle,
+        type: templateParserTabType,
+        icon: templateParserTabIcon,
+        content: templateParserDefaultContent,
+      );
+    }
   }
 
   static void _exitApplication() {

win_text_editor/lib/app/models/tab_model.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+
+class EditorTab {
+  final String id;
+  final String title;
+  final String? type; // 新增类型字段
+  final IconData? icon; // 新增图标字段
+  String content;
+  String? fileName;
+
+  EditorTab({
+    required this.id,
+    required this.title,
+    this.type,
+    this.icon,
+    this.content = '',
+    this.fileName,
+  });
+}

win_text_editor/lib/app/providers/editor_provider.dart

@@ -1,5 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:win_text_editor/app/models/tab_model.dart';
 import 'package:win_text_editor/app/providers/logger.dart';
+import 'package:win_text_editor/app/widgets/text_tab.dart';
 
 class EditorProvider with ChangeNotifier {
   final List<EditorTab> _tabs = [];
@@ -8,7 +10,15 @@ class EditorProvider with ChangeNotifier {
   List<EditorTab> get tabs => _tabs;
   String? get activeTabId => _activeTabId;
 
-  int _templateTabCounter = 1;
+  final Map<String, TextTabState> _tabControllers = {};
+
+  void registerTextTabController(String tabId, TextTabState controller) {
+    _tabControllers[tabId] = controller;
+  }
+
+  void unregisterTextTabController(String tabId) {
+    _tabControllers.remove(tabId);
+  }
 
   EditorTab? get activeTab {
     if (_activeTabId == null) return null;
@@ -20,14 +30,34 @@ class EditorProvider with ChangeNotifier {
     }
   }
 
-  void addTab() {
+  Future<void> addTab({
-    final tabId = DateTime.now().millisecondsSinceEpoch.toString();
+    String title = '未命名',
-    _tabs.add(EditorTab(id: tabId, title: '模板解析[$_templateTabCounter]', content: ''));
+    String? type,
-    _templateTabCounter++;
+    IconData? icon,
-    _activeTabId = tabId;
+    String content = '',
+  }) async {
+    final newTab = EditorTab(
+      id: DateTime.now().millisecondsSinceEpoch.toString(),
+      title: title,
+      type: type,
+      icon: icon,
+      content: content,
+    );
+
+    _tabs.add(newTab);
+    _activeTabId = newTab.id;
     notifyListeners();
   }
 
+  EditorTab? getTabById(String tabId) {
+    try {
+      return _tabs.firstWhere((tab) => tab.id == tabId);
+    } catch (e) {
+      Logger().error("找不到选项卡: ${tabId}", source: 'EditorProvider');
+      return null;
+    }
+  }
+
   void closeTab(String tabId) {
     Logger().info('关闭选项卡: $tabId');
     _tabs.removeWhere((tab) => tab.id == tabId);
@@ -57,13 +87,33 @@ class EditorProvider with ChangeNotifier {
       Logger().error("更新内容失败: ${e.toString()}", source: 'EditorProvider');
     }
   }
-}
 
-class EditorTab {
+  Future<void> requestLoadFile(BuildContext context, String filePath) async {
-  final String id;
+    if (_activeTabId == null) {
-  String title;
+      Logger().warning("没有活动选项卡，无法加载文件");
-  String content;
+      return;
-  String? fileName;
+    }
+
+    final textTabState = _tabControllers[_activeTabId];
+    if (textTabState == null) {
+      Logger().warning("找不到 TextTab 状态");
+      return;
+    }
+
+    if (!textTabState.mounted) {
+      Logger().warning("TextTab 状态组件未挂载");
+      return;
+    }
 
-  EditorTab({required this.id, required this.title, required this.content, this.fileName});
+    try {
+      await textTabState.loadFile(context, filePath);
+    } catch (e) {
+      Logger().error("加载文件失败: ${e.toString()}");
+      if (context.mounted) {
+        ScaffoldMessenger.of(
+          context,
+        ).showSnackBar(SnackBar(content: Text('加载文件失败: ${e.toString()}')));
+      }
+    }
+  }
 }

win_text_editor/lib/app/widgets/console_panel.dart

@@ -15,7 +15,6 @@ class _ConsolePanelState extends State<ConsolePanel> {
   final double _minHeight = 50;
   final double _maxHeight = 300;
   final ScrollController _scrollController = ScrollController();
-  String? _selectedLog; // 当前选中的日志内容
 
   @override
   void dispose() {

win_text_editor/lib/app/widgets/editor_pane.dart

@@ -22,6 +22,7 @@ class EditorPane extends StatelessWidget {
               final tab = provider.tabs[index];
               return _TabItem(
                 title: tab.title,
+                icon: tab.icon, // 添加图标支持
                 isActive: tab.id == provider.activeTabId,
                 onClose: () => provider.closeTab(tab.id),
                 onTap: () => provider.setActiveTab(tab.id),
@@ -32,7 +33,7 @@ class EditorPane extends StatelessWidget {
         // 内容区
         Expanded(
           child:
-              provider.activeTabId != null
+              provider.activeTabId != null && provider.tabs.any((t) => t.id == provider.activeTabId)
                   ? TextTab(tabId: provider.activeTabId!)
                   : const Center(child: Text('无活动标签页')),
         ),
@@ -43,12 +44,14 @@ class EditorPane extends StatelessWidget {
 
 class _TabItem extends StatelessWidget {
   final String title;
+  final IconData? icon; // 添加图标
   final bool isActive;
   final VoidCallback onClose;
   final VoidCallback onTap;
 
   const _TabItem({
     required this.title,
+    this.icon,
     required this.isActive,
     required this.onClose,
     required this.onTap,
@@ -68,6 +71,8 @@ class _TabItem extends StatelessWidget {
         ),
         child: Row(
           children: [
+            if (icon != null) Icon(icon, size: 16),
+            if (icon != null) const SizedBox(width: 4),
             Text(title),
             const SizedBox(width: 8),
             IconButton(icon: const Icon(Icons.close, size: 16), onPressed: onClose),

win_text_editor/lib/app/widgets/file_explorer.dart

@@ -1,13 +1,11 @@
-import 'dart:io';
-
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
+import 'package:win_text_editor/app/providers/editor_provider.dart';
 import 'package:win_text_editor/app/providers/logger.dart';
 
 import '../models/file_node.dart';
 import '../providers/file_provider.dart';
-import '../providers/editor_provider.dart';
 
 import 'dart:math';
 
@@ -57,46 +55,22 @@ class _FileExplorerState extends State<FileExplorer> {
     final fileProvider = Provider.of<FileProvider>(context, listen: false);
     if (node.isDirectory) {
       await fileProvider.loadDirectoryContents(node);
-    } else {
-      // Handle file opening
-      print("No active tab found");
-      _openFileInEditor(context, node);
     }
+    // 单击文件节点时不处理
   }
 
   Future<void> _openFileInEditor(BuildContext context, FileNode node) async {
-    try {
+    if (!node.isDirectory) {
-      Logger().info('尝试打开文件: ${node.path}');
+      try {
-      final editorProvider = Provider.of<EditorProvider>(context, listen: false);
+        final editorProvider = Provider.of<EditorProvider>(context, listen: false);
-      final content = await File(node.path).readAsString();
+        await editorProvider.requestLoadFile(context, node.path);
-
+      } catch (e) {
-      Logger().debug('文件内容读取成功，长度: ${content.length}');
+        Logger().error("打开文件失败: ${e.toString()}");
-      Logger().debug('当前活动选项卡ID: ${editorProvider.activeTabId}');
+        if (context.mounted) {
-      Logger().debug('现有选项卡数量: ${editorProvider.tabs.length}');
+          ScaffoldMessenger.of(
-
+            context,
-      // 如果没有活动选项卡，先创建一个
+          ).showSnackBar(SnackBar(content: Text('打开文件失败: ${e.toString()}')));
-      if (editorProvider.activeTabId == null) {
+        }
-        Logger().info('没有活动选项卡，创建新选项卡');
-        editorProvider.addTab();
-      }
-      // 更新内容
-      Logger().info('准备更新选项卡内容');
-      editorProvider.updateContent(editorProvider.activeTabId!, content, node.name);
-
-      if (context.mounted) {
-        Logger().debug('已加载: ${node.name}');
-      }
-    } on FormatException {
-      Logger().warning('文件格式异常: ${node.path}');
-      if (context.mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('这不是可读的文本文件')));
-      }
-    } catch (e) {
-      Logger().error('打开文件失败: ${e.toString()}', source: 'FileExplorer');
-      if (context.mounted) {
-        ScaffoldMessenger.of(
-          context,
-        ).showSnackBar(SnackBar(content: Text('读取失败: ${e.toString()}')));
       }
     }
   }

win_text_editor/lib/app/widgets/text_tab.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'dart:ui';
 import 'dart:io';
+import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:flutter/services.dart';
@@ -13,21 +14,22 @@ class TextTab extends StatefulWidget {
   const TextTab({super.key, required this.tabId});
 
   @override
-  State<TextTab> createState() => _TextTabState();
+  State<TextTab> createState() => TextTabState();
 }
 
-class _TextTabState extends State<TextTab> {
+class TextTabState extends State<TextTab> {
   late TextEditingController _controller;
   late EditorProvider _provider;
   late FocusNode _focusNode;
   late ScrollController _scrollController;
   bool _isLoading = false;
-  static const int maxFileSize = 10 * 1024 * 1024; // 10MB
+  static const int maxFileSize = 1024 * 1024; // 1MB
 
   @override
   void initState() {
     super.initState();
     _provider = Provider.of<EditorProvider>(context, listen: false);
+    _provider.registerTextTabController(widget.tabId, this);
     _controller = TextEditingController(text: _getCurrentContent());
     _focusNode = FocusNode();
     _scrollController = ScrollController();
@@ -58,7 +60,13 @@ class _TextTabState extends State<TextTab> {
 
   @override
   Widget build(BuildContext context) {
-    final tab = _provider.tabs.firstWhere((t) => t.id == widget.tabId);
+    final tab = _provider.tabs.firstWhereOrNull((t) => t.id == widget.tabId);
+    if (tab == null) {
+      return const Center(child: Text('选项卡不存在'));
+    }
+
+    String fileNameText =
+        tab.fileName != null && tab.fileName!.isNotEmpty ? '${tab.fileName},' : '';
 
     return Column(
       children: [
@@ -73,7 +81,7 @@ class _TextTabState extends State<TextTab> {
             mainAxisAlignment: MainAxisAlignment.spaceBetween,
             children: [
               Text(
-                '源文本${tab.content.isEmpty ? '' : ' (${tab.fileName!.isEmpty ? '' : '${tab.fileName},'}${tab.content.length}字符)'}',
+                '源文本${tab.content.isEmpty ? '' : ' ($fileNameText${tab.content.length}字符)'}',
                 style: const TextStyle(fontWeight: FontWeight.bold),
               ),
               Row(
@@ -143,72 +151,9 @@ class _TextTabState extends State<TextTab> {
   }
 
   Future<void> _openFile(BuildContext context) async {
-    try {
+    final result = await FilePicker.platform.pickFiles(type: FileType.any, allowMultiple: false);
-      setState(() => _isLoading = true);
+    if (result != null && result.files.single.path != null) {
-
+      await loadFile(context, result.files.single.path!);
-      final result = await FilePicker.platform.pickFiles(type: FileType.any, allowMultiple: false);
-
-      if (result != null && result.files.single.path != null) {
-        final file = File(result.files.single.path!);
-        final fileSize = await file.length();
-
-        // 检查文件大小
-        if (fileSize > maxFileSize) {
-          if (context.mounted) {
-            ScaffoldMessenger.of(
-              context,
-            ).showSnackBar(const SnackBar(content: Text('文件过大(超过10MB)，无法处理')));
-          }
-          return;
-        }
-
-        // 清空当前内容
-        _provider.updateContent(widget.tabId, '', result.files.first.name);
-        _controller.text = '';
-
-        // 逐行读取文件
-        final stream = file.openRead();
-        final lines = stream.transform(utf8.decoder).transform(const LineSplitter());
-
-        await for (final line in lines) {
-          if (!mounted) break; // 如果组件已卸载，停止处理
-
-          setState(() {
-            _controller.text += '$line\n';
-            _provider.updateContent(widget.tabId, _controller.text, result.files.first.name);
-          });
-
-          // 自动滚动到底部
-          WidgetsBinding.instance.addPostFrameCallback((_) {
-            _scrollController.jumpTo(_scrollController.position.maxScrollExtent);
-          });
-
-          // 添加微小延迟，让用户能看到逐行加载效果
-          await Future.delayed(const Duration(milliseconds: 10));
-        }
-
-        if (context.mounted) {
-          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('已加载: ${file.path}')));
-        }
-      }
-    } on FormatException {
-      if (context.mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('这不是可读的文本文件')));
-      }
-    } on FileSystemException catch (e) {
-      if (context.mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('文件访问错误: ${e.message}')));
-      }
-    } catch (e) {
-      if (context.mounted) {
-        ScaffoldMessenger.of(
-          context,
-        ).showSnackBar(SnackBar(content: Text('读取失败: ${e.toString()}')));
-      }
-    } finally {
-      if (mounted) {
-        setState(() => _isLoading = false);
-      }
     }
   }
 
@@ -272,4 +217,99 @@ class _TextTabState extends State<TextTab> {
       }
     }
   }
+
+  // 新增公共方法，处理文件加载逻辑
+  Future<void> loadFile(BuildContext context, String filePath) async {
+    try {
+      setState(() => _isLoading = true);
+      final file = File(filePath);
+      final fileSize = await file.length();
+
+      // 检查文件大小
+      if (fileSize > maxFileSize) {
+        if (context.mounted) {
+          ScaffoldMessenger.of(
+            context,
+          ).showSnackBar(const SnackBar(content: Text('文件过大(超过1MB)，无法处理')));
+        }
+        return;
+      }
+
+      // 判断活动的文本编辑框中是否有内容
+      final activeTab = _provider.getTabById(widget.tabId);
+      if (activeTab != null && activeTab.content.isNotEmpty) {
+        final confirm = await showDialog<bool>(
+          context: context,
+          builder:
+              (context) => AlertDialog(
+                title: const Text('确认提示'),
+                content: const Text('确认是否打开新的文件？打开后将覆盖当前内容'),
+                actions: [
+                  TextButton(
+                    onPressed: () => Navigator.pop(context, false),
+                    child: const Text('取消'),
+                  ),
+                  TextButton(
+                    onPressed: () => Navigator.pop(context, true),
+                    child: const Text('确认'),
+                  ),
+                ],
+              ),
+        );
+
+        if (confirm != true) {
+          return;
+        }
+      }
+
+      final _fileName = file.path.split('\\').last;
+
+      // 清空当前内容
+      _provider.updateContent(widget.tabId, '', _fileName);
+      _controller.text = '';
+
+      // 逐行读取文件
+      final stream = file.openRead();
+      final lines = stream.transform(utf8.decoder).transform(const LineSplitter());
+
+      await for (final line in lines) {
+        if (!mounted) break; // 如果组件已卸载，停止处理
+
+        setState(() {
+          _controller.text += '$line\n';
+          _provider.updateContent(widget.tabId, _controller.text, _fileName);
+        });
+
+        // 自动滚动到底部
+        WidgetsBinding.instance.addPostFrameCallback((_) {
+          _scrollController.jumpTo(_scrollController.position.maxScrollExtent);
+        });
+
+        // 添加微小延迟，让用户能看到逐行加载效果
+        await Future.delayed(const Duration(milliseconds: 10));
+      }
+
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('已加载: ${file.path}')));
+      }
+    } on FormatException {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('这不是可读的文本文件')));
+      }
+    } on FileSystemException catch (e) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('文件访问错误: ${e.message}')));
+      }
+    } catch (e) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(
+          context,
+        ).showSnackBar(SnackBar(content: Text('读取失败: ${e.toString()}')));
+      }
+    } finally {
+      if (mounted) {
+        setState(() => _isLoading = false);
+      }
+    }
+  }
 }

win_text_editor/pubspec.lock

@@ -74,7 +74,7 @@ packages:
     source: hosted
     version: "1.1.2"
   collection:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: collection
       sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"

win_text_editor/pubspec.yaml

@@ -16,8 +16,7 @@ dependencies:
   bitsdojo_window: ^0.1.1+2
   flutter_syntax_view: ^4.1.7
   expandable: ^5.0.1
-
+  collection: ^1.17.0
-
 
 dev_dependencies:
   flutter_test: