[ui] improvement -> checking if the internet connection is available before proceeding with the upgrade process

CHANGELOG.md

@@ -7,7 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [0.9.15] 2021
 ### Improvements
 - UI
-    - checking if internet connection is available before trying to upgrade the selected packages
+    - checking if the internet connection is available before trying to upgrade the selected packages
     
 ### Fixes
 - AppImage

bauh/view/qt/thread.py

@@ -388,12 +388,14 @@ class UpgradeSelected(AsyncAction):
         except:
             traceback.print_exc()
 
+    def _handle_internet_off(self):
+        self.pkgs = None
+        self.print(self.i18n['internet.required'])
+        self.notify_finished({'success': False, 'updated': 0, 'types': set(), 'id': None})
+
     def run(self):
         if not self.internet_checker.is_available():
-            self.pkgs = None
-            self.print(self.i18n['internet.required'])
-            self.notify_finished({'success': False, 'updated': 0, 'types': set(), 'id': None})
-            return
+            return self._handle_internet_off()
 
         root_user = user.is_root()
         to_update, upgrade_requires_root, bkp_supported = [], False, False
@@ -472,6 +474,9 @@ class UpgradeSelected(AsyncAction):
             self.pkgs = None
             return
 
+        if not self.internet_checker.is_available():
+            return self._handle_internet_off()
+
         self.change_substatus('')
 
         app_config = CoreConfigManager().get_config()