misc: chore: Move the windows that are shown via ContentDialogs out of Ryujinx.Ava.UI.Windows (they're not windows)

src/Ryujinx/UI/Views/Dialog/DownloadableContentManagerView.axaml.cs

@@ -0,0 +1,97 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Styling;
+using FluentAvalonia.UI.Controls;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.Common.Models;
+using Ryujinx.Ava.UI.ViewModels;
+using Ryujinx.Ava.Systems.AppLibrary;
+using Ryujinx.Common.Helper;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Ava.UI.Views.Dialog
+{
+    public partial class DownloadableContentManagerView : UserControl
+    {
+        public DownloadableContentManagerViewModel ViewModel;
+
+        public DownloadableContentManagerView()
+        {
+            DataContext = this;
+
+            InitializeComponent();
+        }
+
+        public DownloadableContentManagerView(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
+        {
+            DataContext = ViewModel = new DownloadableContentManagerViewModel(applicationLibrary, applicationData);
+
+            InitializeComponent();
+        }
+
+        public static async Task Show(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
+        {
+            ContentDialog contentDialog = new()
+            {
+                PrimaryButtonText = string.Empty,
+                SecondaryButtonText = string.Empty,
+                CloseButtonText = string.Empty,
+                Content = new DownloadableContentManagerView(applicationLibrary, applicationData),
+                Title = string.Format(LocaleManager.Instance[LocaleKeys.DlcWindowTitle], applicationData.Name, applicationData.IdBaseString),
+            };
+
+            Style bottomBorder = new(x => x.OfType<Grid>().Name("DialogSpace").Child().OfType<Border>());
+            bottomBorder.Setters.Add(new Setter(IsVisibleProperty, false));
+
+            contentDialog.Styles.Add(bottomBorder);
+
+            await contentDialog.ShowAsync();
+        }
+
+        private void SaveAndClose(object sender, RoutedEventArgs routedEventArgs)
+        {
+            ViewModel.Save();
+            ((ContentDialog)Parent).Hide();
+        }
+
+        private void Close(object sender, RoutedEventArgs e)
+        {
+            ((ContentDialog)Parent).Hide();
+        }
+
+        private void RemoveDLC(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button { DataContext: DownloadableContentModel dlc })
+            {
+                ViewModel.Remove(dlc);
+            }
+        }
+
+        private void OpenLocation(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button { DataContext: DownloadableContentModel dlc })
+            {
+                OpenHelper.LocateFile(dlc.ContainerPath);
+            }
+        }
+
+        private void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            foreach (object content in e.AddedItems)
+            {
+                if (content is DownloadableContentModel model)
+                {
+                    ViewModel.Enable(model);
+                }
+            }
+
+            foreach (object content in e.RemovedItems)
+            {
+                if (content is DownloadableContentModel model)
+                {
+                    ViewModel.Disable(model);
+                }
+            }
+        }
+    }
+}