Navigate to second (top) NavigationView level

Navigate to the second (top) NavigationView level on app launch, as
indicated by the LaunchPageOption setting, and applicable for the
music and video library pages.

Author: adrianghc

Screenbox/Pages/MusicPage.xaml.cs

@@ -1,16 +1,19 @@
 #nullable enable
 
-using CommunityToolkit.Mvvm.DependencyInjection;
-using Screenbox.Core;
-using Screenbox.Core.ViewModels;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using CommunityToolkit.Mvvm.DependencyInjection;
+using Screenbox.Core;
+using Screenbox.Core.Services;
+using Screenbox.Core.ViewModels;
+using Screenbox.Helpers;
 using Windows.UI.Xaml.Controls;
 using Windows.UI.Xaml.Media.Animation;
 using Windows.UI.Xaml.Navigation;
 using NavigationView = Microsoft.UI.Xaml.Controls.NavigationView;
 using NavigationViewSelectionChangedEventArgs = Microsoft.UI.Xaml.Controls.NavigationViewSelectionChangedEventArgs;
+using muxc = Microsoft.UI.Xaml.Controls;
 
 // The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=234238
 
@@ -31,6 +34,8 @@ public sealed partial class MusicPage : Page, IContentFrame
 
         private readonly Dictionary<string, Type> _pages;
 
+        private ISettingsService Settings => Ioc.Default.GetRequiredService<ISettingsService>();
+
         public MusicPage()
         {
             this.InitializeComponent();
@@ -55,7 +60,20 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
             }
             else
             {
-                LibraryNavView.SelectedItem = LibraryNavView.MenuItems[0];
+                muxc.NavigationViewItem? libraryNavItem = null;
+                var launchPage = Settings.LaunchPage;
+                if (launchPage.GetNavPageFirstLevel() != "music")
+                {
+                    libraryNavItem = (muxc.NavigationViewItem?)LibraryNavView.MenuItems[0];
+                }
+                else
+                {
+                    var launchPageTag = launchPage.GetNavPageSecondLevel();
+                    libraryNavItem = LibraryNavView.MenuItems
+                        .OfType<muxc.NavigationViewItem>()
+                        .FirstOrDefault(item => item.Tag?.ToString() == launchPageTag);
+                }
+                LibraryNavView.SelectedItem = libraryNavItem ?? LibraryNavView.MenuItems[0];
             }
 
             ViewModel.UpdateSongs();

Screenbox/Pages/VideosPage.xaml.cs

@@ -1,16 +1,19 @@
 #nullable enable
 
-using CommunityToolkit.Mvvm.DependencyInjection;
-using Screenbox.Core;
-using Screenbox.Core.ViewModels;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using CommunityToolkit.Mvvm.DependencyInjection;
+using Screenbox.Core;
+using Screenbox.Core.Services;
+using Screenbox.Core.ViewModels;
+using Screenbox.Helpers;
 using Windows.UI.Xaml.Controls;
 using Windows.UI.Xaml.Media.Animation;
 using Windows.UI.Xaml.Navigation;
 using NavigationView = Microsoft.UI.Xaml.Controls.NavigationView;
 using NavigationViewSelectionChangedEventArgs = Microsoft.UI.Xaml.Controls.NavigationViewSelectionChangedEventArgs;
+using muxc = Microsoft.UI.Xaml.Controls;
 
 // The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=234238
 
@@ -33,6 +36,8 @@ public sealed partial class VideosPage : Page, IContentFrame
 
         private readonly Dictionary<string, Type> _pages;
 
+        private ISettingsService Settings => Ioc.Default.GetRequiredService<ISettingsService>();
+
         public VideosPage()
         {
             this.InitializeComponent();
@@ -56,7 +61,20 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
             }
             else
             {
-                LibraryNavView.SelectedItem = LibraryNavView.MenuItems[0];
+                muxc.NavigationViewItem? libraryNavItem = null;
+                var launchPage = Settings.LaunchPage;
+                if (launchPage.GetNavPageFirstLevel() != "videos")
+                {
+                    libraryNavItem = (muxc.NavigationViewItem?)LibraryNavView.MenuItems[0];
+                }
+                else
+                {
+                    var launchPageTag = launchPage.GetNavPageSecondLevel();
+                    libraryNavItem = LibraryNavView.MenuItems
+                        .OfType<muxc.NavigationViewItem>()
+                        .FirstOrDefault(item => item.Tag?.ToString() == launchPageTag);
+                }
+                LibraryNavView.SelectedItem = libraryNavItem ?? LibraryNavView.MenuItems[0];
             }
 
             ViewModel.UpdateVideos();