完善chrome_downloading，从配置中获取下载路径

DrissionPage/mix_page.py

@@ -157,6 +157,23 @@ class MixPage(Null, SessionPage, DriverPage):
         self.change_mode('s', go=False)
         return super().post(url, params, data, go_anyway, **kwargs)
 
+    # ----------------重写DriverPage的函数-----------------------
+
+    def chrome_downloading(self, download_path: str = None) -> list:
+        """检查浏览器下载情况，返回正在下载的文件列表
+        :param download_path: 下载文件夹路径，默认读取配置信息
+        :return: 正在下载的文件列表
+        """
+        try:
+            path = download_path or self._drission.driver_options['experimental_options']['prefs'][
+                'download.default_directory']
+            if not path:
+                raise KeyError
+        except KeyError:
+            raise KeyError('Download path not found.')
+
+        return super().chrome_downloading(path)
+
     # ----------------以下为共用函数-----------------------
 
     def get(self, url: str, params: dict = None, go_anyway=False, **kwargs) -> Union[bool, None]: