code improvement

Author: alanpoon

src/home/room_screen.rs

@@ -959,19 +959,19 @@ impl Widget for RoomScreen {
         // that its timeline events have been updated in the background.
         if let Event::Signal = event {
             if let Some(room_id) = &self.room_id {
-                if !self.rooms_list(id!(rooms_list)).is_room_loaded(room_id) {
-                    if self.rooms_list(id!(rooms_list)).all_known_rooms_loaded() {
-                        self.view
-                        .label(id!(restore_status_label))
-                        .set_text(cx, &format!(
+                let rooms_list = self.rooms_list(id!(rooms_list));
+                if !rooms_list.is_room_loaded(room_id) {
+                    let status_text = if rooms_list.all_known_rooms_loaded() {
+                        format!(
                             "Room {} was not found in the homeserver's list of all rooms.",
                             self.room_name
-                        ));
+                        )
                     } else {
-                        self.view
+                        "[Placeholder for Spinner]".to_string()
+                    };
+                    self.view
                         .label(id!(restore_status_label))
-                        .set_text(cx, "[Placeholder for Spinner]");
-                    }
+                        .set_text(cx, &status_text);
                     return;
                 }
             }