(KIOSK) Indicate to the user that the button has been clicked

(cherry picked from commit 79de628)

Author: xdri3n

kiosk_interface/views/tab_kiosk.py

@@ -83,7 +83,7 @@ def __init__(self, app, kiosk):
         self.input_search = QLineEdit(self.app.tray.criterion, self)
         self.input_search.setPlaceholderText("Search a package by name")
 
-        self.button_refresh = QPushButton("Actualiser", self)
+        self.button_refresh = QPushButton("Refresh", self)
         self.button_refresh.clicked.connect(self.on_refresh_clicked)
 
         self.item_custom_packages = []
@@ -173,8 +173,14 @@ def update_last_inventory_display(self):
         else:
             self.label_last_inventory.setText("Last Inventory : N/A")
 
+        self.button_refresh.setEnabled(True)
+        self.button_refresh.setText("Refresh")
+
     def on_refresh_clicked(self):
         """Method called when the 'update' button is clicked"""
+        self.button_refresh.setEnabled(False)
+        self.button_refresh.setText("Refresh in progress...")
+
         self.app.send('{"action":"kioskinterface", "subaction":"initialization"}')
         self.app.send('{"action":"kioskinterface", "subaction":"inventory"}')