feat: 将配置导出功能从JSON改为TOML格式并添加保存对话框

webview_app.py

@@ -340,17 +340,86 @@ class EGMWebApp:
             }
         }
 
-    def export_config(self, params: Dict[str, Any]) -> str:
+    def dict_to_toml(self, obj: Dict[str, Any], indent: str = '') -> str:
         """
-        导出配置为 JSON 字符串
+        将字典转换为 TOML 格式字符串
+        
+        Args:
+            obj: 参数字典
+            indent: 缩进字符串
+            
+        Returns:
+            TOML 格式字符串
+        """
+        result = ''
+        
+        for key, value in obj.items():
+            if value is None:
+                continue
+            
+            if isinstance(value, list):
+                result += f'{indent}{key} = [{", ".join(str(v) for v in value)}]\n'
+            elif isinstance(value, dict):
+                result += f'\n{indent}[{key}]\n'
+                result += self.dict_to_toml(value, indent)
+            elif isinstance(value, str):
+                result += f'{indent}{key} = "{value}"\n'
+            elif isinstance(value, bool):
+                result += f'{indent}{key} = {str(value).lower()}\n'
+            else:
+                result += f'{indent}{key} = {value}\n'
+        
+        return result
+
+    def export_config(self, params: Dict[str, Any]) -> Dict[str, Any]:
+        """
+        导出配置为 TOML 文件，弹出保存对话框
 
         Args:
             params: 参数字典
 
         Returns:
-            JSON 字符串
+            包含保存状态和路径的字典
         """
-        return json.dumps(params, indent=2, ensure_ascii=False)
+        try:
+            # 生成默认文件名
+            timestamp = datetime.now().strftime('%Y%m%d_%H%M%S')
+            default_filename = f'egm_config_{timestamp}.toml'
+            
+            # 打开保存文件对话框
+            result = self.window.create_file_dialog(
+                webview.SAVE_DIALOG,
+                directory='',
+                save_filename=default_filename,
+                file_types=('TOML Files (*.toml)', 'All files (*.*)')
+            )
+            
+            if result and len(result) > 0:
+                file_path = result[0]
+                
+                # 转换为 TOML 格式
+                toml_content = self.dict_to_toml(params)
+                
+                # 写入文件
+                with open(file_path, 'w', encoding='utf-8') as f:
+                    f.write(toml_content)
+                
+                return {
+                    "success": True,
+                    "message": f"配置已保存到: {file_path}",
+                    "file_path": file_path
+                }
+            else:
+                return {
+                    "success": False,
+                    "message": "用户取消了保存操作"
+                }
+        except Exception as e:
+            logger.error(f"导出配置失败: {str(e)}")
+            return {
+                "success": False,
+                "message": f"保存失败: {str(e)}"
+            }
 
     def get_default_config(self) -> Dict[str, Any]:
         """
@@ -421,6 +490,9 @@ def start_webview():
         resizable=True,
         min_size=(800, 600)
     )
+    
+    # 将窗口对象传递给 API
+    api.window = window
 
     # 启动
     logger.info("启动 EGM Web 界面...")