Close installer when done installing package & also show uninstalling indicator

StabilityMatrix/InstallerWindow.xaml

@@ -10,6 +10,7 @@
     d:DesignHeight="600"
     d:DesignWidth="700"
     WindowBackdropType="Mica"
+    WindowStartupLocation="CenterOwner"
     d:DataContext="{d:DesignInstance Type=viewModels:InstallerViewModel,
                                      IsDesignTimeCreatable=True}"
     mc:Ignorable="d"

StabilityMatrix/InstallerWindow.xaml.cs

@@ -19,6 +19,7 @@ namespace StabilityMatrix
             this.viewModel = viewModel;
             InitializeComponent();
             DataContext = viewModel;
+            viewModel.PackageInstalled += (_, _) => Close();
         }
 
         private async void InstallPage_OnLoaded(object sender, RoutedEventArgs e)

StabilityMatrix/PackageManagerPage.xaml

@@ -12,6 +12,10 @@
     xmlns:models="clr-namespace:StabilityMatrix.Models"
     xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    
+    <Page.Resources>
+        <BooleanToVisibilityConverter x:Key="BoolToVisConverter"/>
+    </Page.Resources>
 
     <Grid Margin="16">
         <Grid.RowDefinitions>
@@ -125,6 +129,13 @@
                         Visibility="{Binding InstallButtonVisibility, FallbackValue=Visible}"
                         Width="100" />
                 </StackPanel>
+                <StackPanel Orientation="Horizontal" Visibility="{Binding IsUninstalling,
+                                                        Converter={StaticResource BoolToVisConverter}}">
+                    <ui:ProgressRing Height="24" Width="24" Margin="8, 16, 8, 8"
+                                     VerticalAlignment="Center"
+                                     IsIndeterminate="True" HorizontalAlignment="Left"/>
+                    <TextBlock Text="Uninstalling..." VerticalAlignment="Center" Margin="0,8,0,0"/>
+                </StackPanel>
             </StackPanel>
         </StackPanel>
     </Grid>

StabilityMatrix/ViewModels/InstallerViewModel.cs

@@ -75,7 +75,9 @@ public partial class InstallerViewModel : ObservableObject
     public Visibility ProgressBarVisibility => ProgressValue > 0 || IsIndeterminate ? Visibility.Visible : Visibility.Collapsed;
 
     public string ReleaseLabelText => IsReleaseMode ? "Version" : "Branch";
-    
+
+    internal event EventHandler? PackageInstalled;
+
 
     public InstallerViewModel(ISettingsManager settingsManager, ILogger<InstallerViewModel> logger, IPyRunner pyRunner,
         IPackageFactory packageFactory)
@@ -104,6 +106,7 @@ public partial class InstallerViewModel : ObservableObject
     private async Task Install()
     {
         await ActuallyInstall();
+        OnPackageInstalled();
     }
 
     public async Task OnLoaded()
@@ -134,7 +137,7 @@ public partial class InstallerViewModel : ObservableObject
         ReleaseNotes = string.Empty;
         AvailableVersions?.Clear();
 
-        // This can swallow exceptions if you don't explicity try/catch
+        // This can swallow exceptions if you don't explicitly try/catch
         // Idk how to make it better tho
         Task.Run(async () =>
         {
@@ -311,5 +314,7 @@ public partial class InstallerViewModel : ObservableObject
         
         EventManager.Instance.OnGlobalProgressChanged(progress);
     }
-    
+
+    private void OnPackageInstalled() => PackageInstalled?.Invoke(this, EventArgs.Empty);
+
 }

StabilityMatrix/ViewModels/OneClickInstallViewModel.cs

@@ -41,9 +41,11 @@ public partial class OneClickInstallViewModel : ObservableObject
         this.logger = logger;
         this.pyRunner = pyRunner;
         
-        HeaderText = "Click the Install button below to get started!";
+        HeaderText = "Welcome to Stability Matrix!";
         SubHeaderText =
-            "This will install the latest version of Stable Diffusion WebUI by Automatic1111.\nIf you don't know what this means, don't worry, you'll be generating images soon!";
+            "Click the Install button below to get started!\n" +
+            "This will install the latest version of Stable Diffusion WebUI by Automatic1111.\n" +
+            "If you don't know what this means, don't worry, you'll be generating images soon!";
         ShowInstallButton = true;
     }
 

StabilityMatrix/ViewModels/PackageManagerViewModel.cs

@@ -50,6 +50,9 @@ public partial class PackageManagerViewModel : ObservableObject
     [ObservableProperty] 
     private Visibility installButtonVisibility;
 
+    [ObservableProperty] 
+    private bool isUninstalling;
+
     [ObservableProperty]
     [NotifyPropertyChangedFor(nameof(SelectedPackage))]
     private bool updateAvailable;
@@ -170,6 +173,7 @@ public partial class PackageManagerViewModel : ObservableObject
 
         if (result == ContentDialogResult.Primary)
         {
+            IsUninstalling = true;
             var deleteTask = DeleteDirectoryAsync(SelectedPackage.Path);
             var taskResult = await dialogErrorHandler.TryAsync(deleteTask,
                 "Some files could not be deleted. Please close any open files in the package directory and try again.");
@@ -178,6 +182,7 @@ public partial class PackageManagerViewModel : ObservableObject
                 settingsManager.RemoveInstalledPackage(SelectedPackage);
             }
             await OnLoaded();
+            IsUninstalling = false;
         }
     }