fix: NavigationView transition when in top mode (#1220)

Author: bdlukaa

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## [next]
 
+- fix: NavigationView transition when in top ([#1220](https://github.com/bdlukaa/fluent_ui/pull/1220))
 - feat: Added `CalendarView` widget ([#1232](https://github.com/bdlukaa/fluent_ui/pull/1232) thanks to [@asmitta-01](https://github.com/Asmitta-01), [#236](https://github.com/bdlukaa/fluent_ui/issues/236))
 - feat: Added `CalendarDatePicker` ([#236](https://github.com/bdlukaa/fluent_ui/issues/236))
 - feat: Added `WindowsIcon` and `WindowsIcons` ([#1237](https://github.com/bdlukaa/fluent_ui/pull/1237))

lib/src/controls/navigation/navigation_view/body.dart

@@ -122,12 +122,12 @@ class _NavigationBodyState extends State<_NavigationBody> {
           if (isTop) {
             // Other transtitions other than default is only applied to top nav
             // when clicking overflow on topnav, transition is from bottom
-            // otherwise if prevItem is on left side of nextActualItem, transition is from left
-            //           if prevItem is on right side of nextActualItem, transition is from right
+            // otherwise if prevItem is on right side of nextActualItem, transition is from left
+            //           if prevItem is on left side of nextActualItem, transition is from right
             // click on Settings item is considered Default
             return HorizontalSlidePageTransition(
               animation: animation,
-              fromLeft: view.previousItemIndex < (view.pane?.selected ?? 0),
+              fromLeft: view.previousItemIndex > (view.pane?.selected ?? 0),
               child: child,
             );
           }