[enh] tx history update button set to disable until update is done

src/sakia/gui/navigation/txhistory/controller.py

@@ -186,10 +186,13 @@ class TxHistoryController(QObject):
         Update tx history from network for the selected date period
         :return:
         """
-        self._logger.debug("Manually refresh tx history...")
+        self._logger.debug("Manually update tx history...")
 
-        pubkey = self.model.connection.pubkey
+        # disable update button
+        self.view.button_refresh.setDisabled(True)
 
+        pubkey = self.model.connection.pubkey
+        try:
             (
                 changed_tx,
                 new_tx,
@@ -203,7 +206,10 @@ class TxHistoryController(QObject):
 
             for tx in new_tx:
                 self.model.app.new_transfer.emit(self.model.connection, tx)
+        except Exception as e:
+            self._logger.error(str(e))
 
+        try:
             new_dividends = await self.model.transactions_service.update_dividends_history(
                 pubkey,
                 self.view.table_history.model().ts_from,
@@ -214,3 +220,9 @@ class TxHistoryController(QObject):
 
             for ud in new_dividends:
                 self.model.app.new_dividend.emit(self.model.connection, ud)
+        except Exception as e:
+            self._logger.error(str(e))
+
+        # enable update button
+        self.view.button_refresh.setDisabled(False)
+        self._logger.debug("Manually update tx history finished")