Added before save hook

force_bdss/notification_listeners/base_ui_hook_manager.py

@@ -9,3 +9,10 @@ class BaseUIHookManager(ABCHasStrictTraits):
         Gives a chance to alter the model before the temporary file is created
         with its contents and the calculation invoked.
         """
+
+    @abc.abstractmethod
+    def before_save(self, application, model):
+        """Hook that is called just before saving a given model to disk
+        in response to a user action. This does not apply to saving of
+        temporary files before execution.
+        """