导出功能OK

win_text_editor/lib/modules/template_parser/widgets/template_grid_view.dart

@@ -3,6 +3,8 @@ import 'package:provider/provider.dart';
 import 'package:syncfusion_flutter_datagrid/datagrid.dart';
 import 'package:win_text_editor/modules/template_parser/controllers/template_parser_controller.dart';
 import 'package:win_text_editor/modules/template_parser/models/template_node.dart';
+import 'package:file_picker/file_picker.dart';
+import 'dart:io';
 
 class TemplateGridView extends StatelessWidget {
   final TemplateParserController controller;
@@ -13,9 +15,73 @@ class TemplateGridView extends StatelessWidget {
   Widget build(BuildContext context) {
     return Consumer<TemplateParserController>(
       builder: (context, controller, _) {
-        return _buildGridView(controller.templateItems, controller);
+        return GestureDetector(
+          onSecondaryTapDown: (details) {
+            _showContextMenu(context, details.globalPosition, controller);
       },
+          child: _buildGridView(controller.templateItems, controller),
     );
+      },
+    );
+  }
+
+  Future<void> _showContextMenu(
+    BuildContext context,
+    Offset position,
+    TemplateParserController controller,
+  ) async {
+    // 获取渲染对象以正确定位菜单
+    final renderBox = context.findRenderObject() as RenderBox;
+    final localPosition = renderBox.globalToLocal(position);
+
+    // 显示菜单并等待选择结果
+    final result = await showMenu<String>(
+      context: context,
+      position: RelativeRect.fromLTRB(
+        position.dx,
+        position.dy,
+        position.dx + renderBox.size.width - localPosition.dx,
+        position.dy + renderBox.size.height - localPosition.dy,
+      ),
+      items: [const PopupMenuItem<String>(value: 'export', child: Text('导出(csv)'))],
+    );
+
+    // 处理菜单选择结果
+    if (result == 'export' && context.mounted) {
+      try {
+        await _exportToCsv(controller);
+      } catch (e) {
+        if (context.mounted) {
+          ScaffoldMessenger.of(
+            context,
+          ).showSnackBar(SnackBar(content: Text('导出失败: ${e.toString()}')));
+        }
+  }
+    }
+  }
+
+  Future<void> _exportToCsv(TemplateParserController controller) async {
+    String csvData = '序号\t内容\n';
+    final filteredItems =
+        controller.selectedNode != null
+            ? controller.templateItems.where((item) => item.matchesPath(controller.selectedNode!.path)).toList()
+            : controller.templateItems;
+
+    for (var item in filteredItems) {
+      csvData += '${filteredItems.indexOf(item) + 1}\t${item.value}\n';
+    }
+
+    final filePath = await FilePicker.platform.saveFile(
+      dialogTitle: '保存导出结果',
+      fileName: 'template_results.csv',
+      type: FileType.custom,
+      allowedExtensions: ['csv'],
+    );
+
+    if (filePath != null) {
+      final file = File(filePath);
+      await file.writeAsString(csvData);
+    }
   }
 
   Widget _buildGridView(List<TemplateItem> items, TemplateParserController controller) {