Merge pull request #3088 from Jack251970/dev2

Fix possible content frame navigation issue in welcome window & setting window

Author: jjw24

Flow.Launcher/SettingWindow.xaml

@@ -171,6 +171,7 @@
                     IsPaneToggleButtonVisible="False"
                     IsSettingsVisible="False"
                     IsTabStop="False"
+                    Loaded="NavView_Loaded"
                     OpenPaneLength="240"
                     PaneDisplayMode="Left"
                     SelectionChanged="NavigationView_SelectionChanged">

Flow.Launcher/SettingWindow.xaml.cs

@@ -29,7 +29,6 @@ public SettingWindow(IPublicAPI api, SettingWindowViewModel viewModel)
         _api = api;
         InitializePosition();
         InitializeComponent();
-        NavView.SelectedItem = NavView.MenuItems[0]; /* Set First Page */
     }
 
     private void OnLoaded(object sender, RoutedEventArgs e)
@@ -169,7 +168,11 @@ private void NavigationView_SelectionChanged(NavigationView sender, NavigationVi
         else
         {
             var selectedItem = (NavigationViewItem)args.SelectedItem;
-            if (selectedItem == null) return;
+            if (selectedItem == null)
+            {
+                NavView_Loaded(sender, null); /* Reset First Page */
+                return;
+            }
 
             var pageType = selectedItem.Name switch
             {
@@ -186,5 +189,22 @@ private void NavigationView_SelectionChanged(NavigationView sender, NavigationVi
         }
     }
 
+    private void NavView_Loaded(object sender, RoutedEventArgs e)
+    {
+        if (ContentFrame.IsLoaded)
+        {
+            ContentFrame_Loaded(sender, e);
+        }
+        else
+        {
+            ContentFrame.Loaded += ContentFrame_Loaded;
+        }
+    }
+
+    private void ContentFrame_Loaded(object sender, RoutedEventArgs e)
+    {
+        NavView.SelectedItem ??= NavView.MenuItems[0]; /* Set First Page */
+    }
+
     public record PaneData(Settings Settings, Updater Updater, IPortable Portable);
 }

Flow.Launcher/WelcomeWindow.xaml

@@ -82,6 +82,7 @@
                 <ui:Frame
                     x:Name="ContentFrame"
                     HorizontalAlignment="Stretch"
+                    Loaded="ContentFrame_Loaded"
                     ScrollViewer.CanContentScroll="True"
                     ScrollViewer.HorizontalScrollBarVisibility="Visible"
                     ScrollViewer.VerticalScrollBarVisibility="Visible">

Flow.Launcher/WelcomeWindow.xaml.cs

@@ -17,7 +17,6 @@ public WelcomeWindow(Settings settings)
             InitializeComponent();
             BackButton.IsEnabled = false;
             this.settings = settings;
-            ContentFrame.Navigate(PageTypeSelector(1), settings);
         }
 
         private NavigationTransitionInfo _transitionInfo = new SlideNavigationTransitionInfo()
@@ -102,9 +101,15 @@ private static Type PageTypeSelector(int pageNumber)
             var tRequest = new TraversalRequest(FocusNavigationDirection.Next);
             textBox.MoveFocus(tRequest);
         }
+
         private void OnActivated(object sender, EventArgs e)
         {
             Keyboard.ClearFocus();
         }
+
+        private void ContentFrame_Loaded(object sender, RoutedEventArgs e)
+        {
+            ContentFrame.Navigate(PageTypeSelector(1), settings); /* Set First Page */
+        }
     }
-}
+}