Ava GUI: Restructure `Ryujinx.Ava` (#4165)

* Restructure `Ryujinx.Ava`

* Stylistic consistency

* Update Ryujinx.Ava/UI/Controls/UserEditor.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Controls/UserEditor.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Controls/UserSelector.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Controls/SaveManager.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Controls/SaveManager.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Windows/SettingsWindow.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Windows/SettingsWindow.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/ViewModels/UserProfileViewModel.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/ViewModels/UserProfileViewModel.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Fix redundancies

* Remove redunancies

* Add back elses

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

21 files changed, 1537 insertions, 0 deletions

diff --git a/Ryujinx.Ava/UI/Helpers/ApplicationOpenedEventArgs.cs b/Ryujinx.Ava/UI/Helpers/ApplicationOpenedEventArgs.cs
new file mode 100644
index 00000000..ebf5c16e
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/ApplicationOpenedEventArgs.cs
@@ -0,0 +1,16 @@
+using Avalonia.Interactivity;
+using Ryujinx.Ui.App.Common;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public class ApplicationOpenedEventArgs : RoutedEventArgs
+    {
+        public ApplicationData Application { get; }
+
+        public ApplicationOpenedEventArgs(ApplicationData application, RoutedEvent routedEvent)
+        {
+            Application = application;
+            RoutedEvent = routedEvent;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/AvaloniaGlxContext.cs b/Ryujinx.Ava/UI/Helpers/AvaloniaGlxContext.cs
new file mode 100644
index 00000000..6b696ba7
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/AvaloniaGlxContext.cs
@@ -0,0 +1,16 @@
+using SPB.Graphics;
+using System;
+using System.Runtime.Versioning;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    [SupportedOSPlatform("linux")]
+    internal class AvaloniaGlxContext : SPB.Platform.GLX.GLXOpenGLContext
+    {
+        public AvaloniaGlxContext(IntPtr handle)
+            : base(FramebufferFormat.Default, 0, 0, 0, false, null)
+        {
+            ContextHandle = handle;
+        }
+    }
+}
diff --git a/Ryujinx.Ava/UI/Helpers/AvaloniaWglContext.cs b/Ryujinx.Ava/UI/Helpers/AvaloniaWglContext.cs
new file mode 100644
index 00000000..b63a973a
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/AvaloniaWglContext.cs
@@ -0,0 +1,16 @@
+using SPB.Graphics;
+using System;
+using System.Runtime.Versioning;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    [SupportedOSPlatform("windows")]
+    internal class AvaloniaWglContext : SPB.Platform.WGL.WGLOpenGLContext
+    {
+        public AvaloniaWglContext(IntPtr handle)
+            : base(FramebufferFormat.Default, 0, 0, 0, false, null)
+        {
+            ContextHandle = handle;
+        }
+    }
+}
diff --git a/Ryujinx.Ava/UI/Helpers/BitmapArrayValueConverter.cs b/Ryujinx.Ava/UI/Helpers/BitmapArrayValueConverter.cs
new file mode 100644
index 00000000..3fd368f8
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/BitmapArrayValueConverter.cs
@@ -0,0 +1,35 @@
+using Avalonia.Data.Converters;
+using Avalonia.Media;
+using Avalonia.Media.Imaging;
+using System;
+using System.Globalization;
+using System.IO;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class BitmapArrayValueConverter : IValueConverter
+    {
+        public static BitmapArrayValueConverter Instance = new();
+
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value == null)
+            {
+                return null;
+            }
+
+            if (value is byte[] buffer && targetType == typeof(IImage))
+            {
+                MemoryStream mem = new(buffer);
+                return new Bitmap(mem);
+            }
+
+            throw new NotSupportedException();
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotSupportedException();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/ButtonKeyAssigner.cs b/Ryujinx.Ava/UI/Helpers/ButtonKeyAssigner.cs
new file mode 100644
index 00000000..6730b571
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/ButtonKeyAssigner.cs
@@ -0,0 +1,118 @@
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.LogicalTree;
+using Avalonia.Threading;
+using Ryujinx.Input;
+using Ryujinx.Input.Assigner;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class ButtonKeyAssigner
+    {
+        internal class ButtonAssignedEventArgs : EventArgs
+        {
+            public ToggleButton Button { get; }
+            public bool IsAssigned { get; }
+
+            public ButtonAssignedEventArgs(ToggleButton button, bool isAssigned)
+            {
+                Button = button;
+                IsAssigned = isAssigned;
+            }
+        }
+        
+        public ToggleButton ToggledButton { get; set; }
+
+        private bool _isWaitingForInput;
+        private bool _shouldUnbind;
+        public event EventHandler<ButtonAssignedEventArgs> ButtonAssigned;
+
+        public ButtonKeyAssigner(ToggleButton toggleButton)
+        {
+            ToggledButton = toggleButton;
+        }
+
+        public async void GetInputAndAssign(IButtonAssigner assigner, IKeyboard keyboard = null)
+        {
+            Dispatcher.UIThread.Post(() =>
+            {
+                ToggledButton.IsChecked = true;
+            });
+
+            if (_isWaitingForInput)
+            {
+                Dispatcher.UIThread.Post(() =>
+                {
+                    Cancel();
+                });
+
+                return;
+            }
+
+            _isWaitingForInput = true;
+
+            assigner.Initialize();
+
+            await Task.Run(async () =>
+            {
+                while (true)
+                {
+                    if (!_isWaitingForInput)
+                    {
+                        return;
+                    }
+
+                    await Task.Delay(10);
+
+                    assigner.ReadInput();
+
+                    if (assigner.HasAnyButtonPressed() || assigner.ShouldCancel() || (keyboard != null && keyboard.IsPressed(Key.Escape)))
+                    {
+                        break;
+                    }
+                }
+            });
+
+            await Dispatcher.UIThread.InvokeAsync(() =>
+            {
+                string pressedButton = assigner.GetPressedButton();
+
+                if (_shouldUnbind)
+                {
+                    SetButtonText(ToggledButton, "Unbound");
+                }
+                else if (pressedButton != "")
+                {
+                    SetButtonText(ToggledButton, pressedButton);
+                }
+
+                _shouldUnbind = false;
+                _isWaitingForInput = false;
+
+                ToggledButton.IsChecked = false;
+
+                ButtonAssigned?.Invoke(this, new ButtonAssignedEventArgs(ToggledButton, pressedButton != null));
+
+                static void SetButtonText(ToggleButton button, string text)
+                {
+                    ILogical textBlock = button.GetLogicalDescendants().First(x => x is TextBlock);
+
+                    if (textBlock != null && textBlock is TextBlock block)
+                    {
+                        block.Text = text;
+                    }
+                }
+            });
+        }
+
+        public void Cancel(bool shouldUnbind = false)
+        {
+            _isWaitingForInput = false;
+            ToggledButton.IsChecked = false;
+            _shouldUnbind = shouldUnbind;
+        }
+    }
+}
diff --git a/Ryujinx.Ava/UI/Helpers/ContentDialogHelper.cs b/Ryujinx.Ava/UI/Helpers/ContentDialogHelper.cs
new file mode 100644
index 00000000..cf30d99b
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/ContentDialogHelper.cs
@@ -0,0 +1,400 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Media;
+using Avalonia.Threading;
+using FluentAvalonia.Core;
+using FluentAvalonia.UI.Controls;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Controls;
+using Ryujinx.Ava.UI.Windows;
+using Ryujinx.Common.Logging;
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public static class ContentDialogHelper
+    {
+        private static bool _isChoiceDialogOpen;
+
+        private async static Task<UserResult> ShowContentDialog(
+            string title,
+            string primaryText,
+            string secondaryText,
+            string primaryButton,
+            string secondaryButton,
+            string closeButton,
+            int iconSymbol,
+            UserResult primaryButtonResult = UserResult.Ok,
+            ManualResetEvent deferResetEvent = null,
+            Func<Window, Task> doWhileDeferred = null,
+            TypedEventHandler<ContentDialog, ContentDialogButtonClickEventArgs> deferCloseAction = null)
+        {
+            UserResult result = UserResult.None;
+
+            bool useOverlay = false;
+            Window mainWindow = null;
+
+            if (Application.Current.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime al)
+            {
+                foreach (var item in al.Windows)
+                {
+                    if (item.IsActive && item is MainWindow window && window.ViewModel.IsGameRunning)
+                    {
+                        mainWindow = window;
+                        useOverlay = true;
+                        break;
+                    }
+                }
+            }
+
+            ContentDialog contentDialog = null;
+            ContentDialogOverlayWindow overlay = null;
+
+            if (useOverlay)
+            {
+                overlay = new ContentDialogOverlayWindow()
+                {
+                    Height = mainWindow.Bounds.Height,
+                    Width = mainWindow.Bounds.Width,
+                    Position = mainWindow.PointToScreen(new Point())
+                };
+
+                mainWindow.PositionChanged += OverlayOnPositionChanged;
+
+                void OverlayOnPositionChanged(object sender, PixelPointEventArgs e)
+                {
+                    overlay.Position = mainWindow.PointToScreen(new Point());
+                }
+
+                contentDialog = overlay.ContentDialog;
+
+                bool opened = false;
+
+                overlay.Opened += OverlayOnActivated;
+
+                async void OverlayOnActivated(object sender, EventArgs e)
+                {
+                    if (opened)
+                    {
+                        return;
+                    }
+
+                    opened = true;
+
+                    overlay.Position = mainWindow.PointToScreen(new Point());
+
+                    await ShowDialog();
+                }
+
+                await overlay.ShowDialog(mainWindow);
+            }
+            else
+            {
+                contentDialog = new ContentDialog();
+
+                await ShowDialog();
+            }
+
+            async Task ShowDialog()
+            {
+                contentDialog.Title = title;
+                contentDialog.PrimaryButtonText = primaryButton;
+                contentDialog.SecondaryButtonText = secondaryButton;
+                contentDialog.CloseButtonText = closeButton;
+                contentDialog.Content = CreateDialogTextContent(primaryText, secondaryText, iconSymbol);
+
+                contentDialog.PrimaryButtonCommand = MiniCommand.Create(() =>
+                {
+                    result = primaryButtonResult;
+                });
+                contentDialog.SecondaryButtonCommand = MiniCommand.Create(() =>
+                {
+                    result = UserResult.No;
+                    contentDialog.PrimaryButtonClick -= deferCloseAction;
+                });
+                contentDialog.CloseButtonCommand = MiniCommand.Create(() =>
+                {
+                    result = UserResult.Cancel;
+                    contentDialog.PrimaryButtonClick -= deferCloseAction;
+                });
+
+                if (deferResetEvent != null)
+                {
+                    contentDialog.PrimaryButtonClick += deferCloseAction;
+                }
+
+                if (useOverlay)
+                {
+                    await contentDialog.ShowAsync(overlay, ContentDialogPlacement.Popup);
+
+                    overlay!.Close();
+                }
+                else
+                {
+                    await contentDialog.ShowAsync(ContentDialogPlacement.Popup);
+                }
+            }
+
+            if (useOverlay)
+            {
+                overlay.Content = null;
+                overlay.Close();
+            }
+
+            return result;
+        }
+
+        public async static Task<UserResult> ShowDeferredContentDialog(
+            StyleableWindow window,
+            string title,
+            string primaryText,
+            string secondaryText,
+            string primaryButton,
+            string secondaryButton,
+            string closeButton,
+            int iconSymbol,
+            ManualResetEvent deferResetEvent,
+            Func<Window, Task> doWhileDeferred = null)
+        {
+            bool startedDeferring = false;
+            UserResult result = UserResult.None;
+
+            return await ShowContentDialog(
+                title,
+                primaryText,
+                secondaryText,
+                primaryButton,
+                secondaryButton,
+                closeButton,
+                iconSymbol,
+                primaryButton == LocaleManager.Instance["InputDialogYes"] ? UserResult.Yes : UserResult.Ok,
+                deferResetEvent,
+                doWhileDeferred,
+                DeferClose);
+
+            async void DeferClose(ContentDialog sender, ContentDialogButtonClickEventArgs args)
+            {
+                if (startedDeferring)
+                {
+                    return;
+                }
+
+                sender.PrimaryButtonClick -= DeferClose;
+
+                startedDeferring = true;
+
+                var deferral = args.GetDeferral();
+
+                result = primaryButton == LocaleManager.Instance["InputDialogYes"] ? UserResult.Yes : UserResult.Ok;
+
+                sender.PrimaryButtonClick -= DeferClose;
+
+#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
+                Task.Run(() =>
+                {
+                    deferResetEvent.WaitOne();
+
+                    Dispatcher.UIThread.Post(() =>
+                    {
+                        deferral.Complete();
+                    });
+                });
+#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
+
+                if (doWhileDeferred != null)
+                {
+                    await doWhileDeferred(window);
+
+                    deferResetEvent.Set();
+                }
+            }
+        }
+
+        private static Grid CreateDialogTextContent(string primaryText, string secondaryText, int symbol)
+        {
+            Grid content = new Grid();
+            content.RowDefinitions = new RowDefinitions() { new RowDefinition(), new RowDefinition() };
+            content.ColumnDefinitions = new ColumnDefinitions() { new ColumnDefinition(GridLength.Auto), new ColumnDefinition() };
+
+            content.MinHeight = 80;
+
+            SymbolIcon icon = new SymbolIcon { Symbol = (Symbol)symbol, Margin = new Thickness(10) };
+            icon.FontSize = 40;
+            icon.VerticalAlignment = Avalonia.Layout.VerticalAlignment.Center;
+            Grid.SetColumn(icon, 0);
+            Grid.SetRowSpan(icon, 2);
+            Grid.SetRow(icon, 0);
+
+            TextBlock primaryLabel = new TextBlock()
+            {
+                Text = primaryText,
+                Margin = new Thickness(5),
+                TextWrapping = TextWrapping.Wrap,
+                MaxWidth = 450
+            };
+            TextBlock secondaryLabel = new TextBlock()
+            {
+                Text = secondaryText,
+                Margin = new Thickness(5),
+                TextWrapping = TextWrapping.Wrap,
+                MaxWidth = 450
+            };
+
+            Grid.SetColumn(primaryLabel, 1);
+            Grid.SetColumn(secondaryLabel, 1);
+            Grid.SetRow(primaryLabel, 0);
+            Grid.SetRow(secondaryLabel, 1);
+
+            content.Children.Add(icon);
+            content.Children.Add(primaryLabel);
+            content.Children.Add(secondaryLabel);
+
+            return content;
+        }
+
+        public static async Task<UserResult> CreateInfoDialog(
+            string primary,
+            string secondaryText,
+            string acceptButton,
+            string closeButton,
+            string title)
+        {
+            return await ShowContentDialog(
+                title,
+                primary,
+                secondaryText,
+                acceptButton,
+                "",
+                closeButton,
+                (int)Symbol.Important);
+        }
+
+        internal static async Task<UserResult> CreateConfirmationDialog(
+            string primaryText,
+            string secondaryText,
+            string acceptButtonText,
+            string cancelButtonText,
+            string title,
+            UserResult primaryButtonResult = UserResult.Yes)
+        {
+            return await ShowContentDialog(
+                string.IsNullOrWhiteSpace(title) ? LocaleManager.Instance["DialogConfirmationTitle"] : title,
+                primaryText,
+                secondaryText,
+                acceptButtonText,
+                "",
+                cancelButtonText,
+                (int)Symbol.Help,
+                primaryButtonResult);
+        }
+
+        internal static UpdateWaitWindow CreateWaitingDialog(string mainText, string secondaryText)
+        {
+            return new(mainText, secondaryText);
+        }
+
+        internal static async Task CreateUpdaterInfoDialog(string primary, string secondaryText)
+        {
+            await ShowContentDialog(
+                LocaleManager.Instance["DialogUpdaterTitle"],
+                primary,
+                secondaryText,
+                "",
+                "",
+                LocaleManager.Instance["InputDialogOk"],
+                (int)Symbol.Important);
+        }
+
+        internal static async Task CreateWarningDialog(string primary, string secondaryText)
+        {
+            await ShowContentDialog(
+                LocaleManager.Instance["DialogWarningTitle"],
+                primary,
+                secondaryText,
+                "",
+                "",
+                LocaleManager.Instance["InputDialogOk"],
+                (int)Symbol.Important);
+        }
+
+        internal static async Task CreateErrorDialog(string errorMessage, string secondaryErrorMessage = "")
+        {
+            Logger.Error?.Print(LogClass.Application, errorMessage);
+
+            await ShowContentDialog(
+                LocaleManager.Instance["DialogErrorTitle"],
+                LocaleManager.Instance["DialogErrorMessage"],
+                errorMessage,
+                secondaryErrorMessage,
+                "",
+                LocaleManager.Instance["InputDialogOk"],
+                (int)Symbol.Dismiss);
+        }
+
+        internal static async Task<bool> CreateChoiceDialog(string title, string primary, string secondaryText)
+        {
+            if (_isChoiceDialogOpen)
+            {
+                return false;
+            }
+
+            _isChoiceDialogOpen = true;
+
+            UserResult response =
+                await ShowContentDialog(
+                    title,
+                    primary,
+                    secondaryText,
+                    LocaleManager.Instance["InputDialogYes"],
+                    "",
+                    LocaleManager.Instance["InputDialogNo"],
+                    (int)Symbol.Help,
+                    UserResult.Yes);
+
+            _isChoiceDialogOpen = false;
+
+            return response == UserResult.Yes;
+        }
+
+        internal static async Task<bool> CreateExitDialog()
+        {
+            return await CreateChoiceDialog(
+                LocaleManager.Instance["DialogExitTitle"],
+                LocaleManager.Instance["DialogExitMessage"],
+                LocaleManager.Instance["DialogExitSubMessage"]);
+        }
+
+        internal static async Task<bool> CreateStopEmulationDialog()
+        {
+            return await CreateChoiceDialog(
+                LocaleManager.Instance["DialogStopEmulationTitle"],
+                LocaleManager.Instance["DialogStopEmulationMessage"],
+                LocaleManager.Instance["DialogExitSubMessage"]);
+        }
+
+        internal static async Task<string> CreateInputDialog(
+            string title,
+            string mainText,
+            string subText,
+            uint maxLength = int.MaxValue,
+            string input = "")
+        {
+            var result = await InputDialog.ShowInputDialog(
+                title,
+                mainText,
+                input,
+                subText,
+                maxLength);
+
+            if (result.Result == UserResult.Ok)
+            {
+                return result.Input;
+            }
+
+            return string.Empty;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs b/Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs
new file mode 100644
index 00000000..bdeceaea
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs
@@ -0,0 +1,233 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Platform;
+using Ryujinx.Ava.UI.Helper;
+using SPB.Graphics;
+using SPB.Platform;
+using SPB.Platform.GLX;
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using System.Threading.Tasks;
+using static Ryujinx.Ava.UI.Helpers.Win32NativeInterop;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public class EmbeddedWindow : NativeControlHost
+    {
+        private WindowProc _wndProcDelegate;
+        private string _className;
+
+        protected GLXWindow X11Window { get; set; }
+        protected IntPtr WindowHandle { get; set; }
+        protected IntPtr X11Display { get; set; }
+        protected IntPtr NsView { get; set; }
+        protected IntPtr MetalLayer { get; set; }
+
+        private UpdateBoundsCallbackDelegate _updateBoundsCallback;
+
+        public event EventHandler<IntPtr> WindowCreated;
+        public event EventHandler<Size> SizeChanged;
+
+        protected virtual void OnWindowDestroyed() { }
+        protected virtual void OnWindowDestroying()
+        {
+            WindowHandle = IntPtr.Zero;
+            X11Display = IntPtr.Zero;
+        }
+
+        public EmbeddedWindow()
+        {
+            var stateObserverable = this.GetObservable(BoundsProperty);
+
+            stateObserverable.Subscribe(StateChanged);
+
+            this.Initialized += NativeEmbeddedWindow_Initialized;
+        }
+
+        public virtual void OnWindowCreated() { }
+
+        private void NativeEmbeddedWindow_Initialized(object sender, EventArgs e)
+        {
+            OnWindowCreated();
+
+            Task.Run(() =>
+            {
+                WindowCreated?.Invoke(this, WindowHandle);
+            });
+        }
+
+        private void StateChanged(Rect rect)
+        {
+            SizeChanged?.Invoke(this, rect.Size);
+            _updateBoundsCallback?.Invoke(rect);
+        }
+
+        protected override IPlatformHandle CreateNativeControlCore(IPlatformHandle parent)
+        {
+            if (OperatingSystem.IsLinux())
+            {
+                return CreateLinux(parent);
+            }
+            else if (OperatingSystem.IsWindows())
+            {
+                return CreateWin32(parent);
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                return CreateMacOs(parent);
+            }
+
+            return base.CreateNativeControlCore(parent);
+        }
+
+        protected override void DestroyNativeControlCore(IPlatformHandle control)
+        {
+            OnWindowDestroying();
+
+            if (OperatingSystem.IsLinux())
+            {
+                DestroyLinux();
+            }
+            else if (OperatingSystem.IsWindows())
+            {
+                DestroyWin32(control);
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                DestroyMacOS();
+            }
+            else
+            {
+                base.DestroyNativeControlCore(control);
+            }
+
+            OnWindowDestroyed();
+        }
+
+        [SupportedOSPlatform("linux")]
+        protected virtual IPlatformHandle CreateLinux(IPlatformHandle parent)
+        {
+            X11Window    = PlatformHelper.CreateOpenGLWindow(FramebufferFormat.Default, 0, 0, 100, 100) as GLXWindow;
+            WindowHandle = X11Window.WindowHandle.RawHandle;
+            X11Display   = X11Window.DisplayHandle.RawHandle;
+
+            return new PlatformHandle(WindowHandle, "X11");
+        }
+
+        [SupportedOSPlatform("windows")]
+        IPlatformHandle CreateWin32(IPlatformHandle parent)
+        {
+            _className = "NativeWindow-" + Guid.NewGuid();
+            _wndProcDelegate = WndProc;
+            var wndClassEx = new WNDCLASSEX
+            {
+                cbSize = Marshal.SizeOf<WNDCLASSEX>(),
+                hInstance = GetModuleHandle(null),
+                lpfnWndProc = Marshal.GetFunctionPointerForDelegate(_wndProcDelegate),
+                style = ClassStyles.CS_OWNDC,
+                lpszClassName = Marshal.StringToHGlobalUni(_className),
+                hCursor = LoadCursor(IntPtr.Zero, (IntPtr)Cursors.IDC_ARROW)
+            };
+
+            var atom = RegisterClassEx(ref wndClassEx);
+
+            var handle = CreateWindowEx(
+                0,
+                _className,
+                "NativeWindow",
+                WindowStyles.WS_CHILD,
+                0,
+                0,
+                640,
+                480,
+                parent.Handle,
+                IntPtr.Zero,
+                IntPtr.Zero,
+                IntPtr.Zero);
+
+            WindowHandle = handle;
+            
+            Marshal.FreeHGlobal(wndClassEx.lpszClassName);
+            
+            return new PlatformHandle(WindowHandle, "HWND");
+        }
+
+        [SupportedOSPlatform("windows")]
+        IntPtr WndProc(IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam)
+        {
+            var point = new Point((long)lParam & 0xFFFF, ((long)lParam >> 16) & 0xFFFF);
+            var root = VisualRoot as Window;
+            bool isLeft = false;
+            switch (msg)
+            {
+                case WindowsMessages.LBUTTONDOWN:
+                case WindowsMessages.RBUTTONDOWN:
+                    isLeft = msg == WindowsMessages.LBUTTONDOWN;
+                    this.RaiseEvent(new PointerPressedEventArgs(
+                        this,
+                        new Pointer(0, PointerType.Mouse, true),
+                        root,
+                        this.TranslatePoint(point, root).Value,
+                        (ulong)Environment.TickCount64,
+                        new PointerPointProperties(isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton, isLeft ? PointerUpdateKind.LeftButtonPressed : PointerUpdateKind.RightButtonPressed),
+                        KeyModifiers.None));
+                    break;
+                case WindowsMessages.LBUTTONUP:
+                case WindowsMessages.RBUTTONUP:
+                    isLeft = msg == WindowsMessages.LBUTTONUP;
+                    this.RaiseEvent(new PointerReleasedEventArgs(
+                        this,
+                        new Pointer(0, PointerType.Mouse, true),
+                        root,
+                        this.TranslatePoint(point, root).Value,
+                        (ulong)Environment.TickCount64,
+                        new PointerPointProperties(isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton, isLeft ? PointerUpdateKind.LeftButtonReleased : PointerUpdateKind.RightButtonReleased),
+                        KeyModifiers.None,
+                        isLeft ? MouseButton.Left : MouseButton.Right));
+                    break;
+                case WindowsMessages.MOUSEMOVE:
+                    this.RaiseEvent(new PointerEventArgs(
+                        PointerMovedEvent,
+                        this,
+                        new Pointer(0, PointerType.Mouse, true),
+                        root,
+                        this.TranslatePoint(point, root).Value,
+                        (ulong)Environment.TickCount64,
+                        new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.Other),
+                        KeyModifiers.None));
+                    break;
+            }
+            return DefWindowProc(hWnd, msg, wParam, lParam);
+        }
+
+        [SupportedOSPlatform("macos")]
+        IPlatformHandle CreateMacOs(IPlatformHandle parent)
+        {
+            MetalLayer = MetalHelper.GetMetalLayer(out IntPtr nsView, out _updateBoundsCallback);
+
+            NsView = nsView;
+
+            return new PlatformHandle(nsView, "NSView");
+        }
+
+        void DestroyLinux()
+        {
+            X11Window?.Dispose();
+        }
+
+        [SupportedOSPlatform("windows")]
+        void DestroyWin32(IPlatformHandle handle)
+        {
+            DestroyWindow(handle.Handle);
+            UnregisterClass(_className, GetModuleHandle(null));
+        }
+
+        [SupportedOSPlatform("macos")]
+        void DestroyMacOS()
+        {
+            MetalHelper.DestroyMetalLayer(NsView, MetalLayer);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/Glyph.cs b/Ryujinx.Ava/UI/Helpers/Glyph.cs
new file mode 100644
index 00000000..4aae854f
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/Glyph.cs
@@ -0,0 +1,9 @@
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public enum Glyph
+    {
+        List,
+        Grid,
+        Chip
+    }
+}
diff --git a/Ryujinx.Ava/UI/Helpers/GlyphValueConverter.cs b/Ryujinx.Ava/UI/Helpers/GlyphValueConverter.cs
new file mode 100644
index 00000000..3d6c9c01
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/GlyphValueConverter.cs
@@ -0,0 +1,49 @@
+using Avalonia.Data;
+using Avalonia.Markup.Xaml;
+using FluentAvalonia.UI.Controls;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public class GlyphValueConverter : MarkupExtension
+    {
+        private string _key;
+
+        private static Dictionary<Glyph, string> _glyphs = new Dictionary<Glyph, string>
+        {
+            { Glyph.List, char.ConvertFromUtf32((int)Symbol.List).ToString() },
+            { Glyph.Grid, char.ConvertFromUtf32((int)Symbol.ViewAll).ToString() },
+            { Glyph.Chip, char.ConvertFromUtf32(59748).ToString() }
+        };
+
+        public GlyphValueConverter(string key)
+        {
+            _key = key;
+        }
+
+        public string this[string key]
+        {
+            get
+            {
+                if (_glyphs.TryGetValue(Enum.Parse<Glyph>(key), out var val))
+                {
+                    return val;
+                }
+
+                return string.Empty;
+            }
+        }
+
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {
+            Avalonia.Markup.Xaml.MarkupExtensions.ReflectionBindingExtension binding = new($"[{_key}]")
+            {
+                Mode = BindingMode.OneWay,
+                Source = this
+            };
+
+            return binding.ProvideValue(serviceProvider);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/HotKeyControl.cs b/Ryujinx.Ava/UI/Helpers/HotKeyControl.cs
new file mode 100644
index 00000000..f1fad157
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/HotKeyControl.cs
@@ -0,0 +1,52 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using System;
+using System.Windows.Input;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public class HotKeyControl : ContentControl, ICommandSource
+    {
+        public static readonly StyledProperty<object> CommandParameterProperty =
+            AvaloniaProperty.Register<HotKeyControl, object>(nameof(CommandParameter));
+
+        public static readonly DirectProperty<HotKeyControl, ICommand> CommandProperty =
+            AvaloniaProperty.RegisterDirect<HotKeyControl, ICommand>(nameof(Command),
+                control => control.Command, (control, command) => control.Command = command, enableDataValidation: true);
+
+        public static readonly StyledProperty<KeyGesture> HotKeyProperty = HotKeyManager.HotKeyProperty.AddOwner<Button>();
+
+        private ICommand _command;
+        private bool _commandCanExecute;
+
+        public ICommand Command
+        {
+            get { return _command; }
+            set { SetAndRaise(CommandProperty, ref _command, value); }
+        }
+
+        public KeyGesture HotKey
+        {
+            get { return GetValue(HotKeyProperty); }
+            set { SetValue(HotKeyProperty, value); }
+        }
+
+        public object CommandParameter
+        {
+            get { return GetValue(CommandParameterProperty); }
+            set { SetValue(CommandParameterProperty, value); }
+        }
+
+        public void CanExecuteChanged(object sender, EventArgs e)
+        {
+            var canExecute = Command == null || Command.CanExecute(CommandParameter);
+
+            if (canExecute != _commandCanExecute)
+            {
+                _commandCanExecute = canExecute;
+                UpdateIsEffectivelyEnabled();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/IGlContextExtension.cs b/Ryujinx.Ava/UI/Helpers/IGlContextExtension.cs
new file mode 100644
index 00000000..e69774c3
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/IGlContextExtension.cs
@@ -0,0 +1,25 @@
+using Avalonia.OpenGL;
+using SPB.Graphics.OpenGL;
+using System;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal static class IGlContextExtension
+    {
+        public static OpenGLContextBase AsOpenGLContextBase(this IGlContext context)
+        {
+            var handle = (IntPtr)context.GetType().GetProperty("Handle").GetValue(context);
+
+            if (OperatingSystem.IsWindows())
+            {
+                return new AvaloniaWglContext(handle);
+            }
+            else if (OperatingSystem.IsLinux())
+            {
+                return new AvaloniaGlxContext(handle);
+            }
+
+            return null;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/KeyValueConverter.cs b/Ryujinx.Ava/UI/Helpers/KeyValueConverter.cs
new file mode 100644
index 00000000..8d5c2815
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/KeyValueConverter.cs
@@ -0,0 +1,46 @@
+using Avalonia.Data.Converters;
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Hid.Controller;
+using System;
+using System.Globalization;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class KeyValueConverter : IValueConverter
+    {
+        public static KeyValueConverter Instance = new();
+
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value == null)
+            {
+                return null;
+            }
+
+            return value.ToString();
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            object key = null;
+
+            if (value != null)
+            {
+                if (targetType == typeof(Key))
+                {
+                    key = Enum.Parse<Key>(value.ToString());
+                }
+                else if (targetType == typeof(GamepadInputId))
+                {
+                    key = Enum.Parse<GamepadInputId>(value.ToString());
+                }
+                else if (targetType == typeof(StickInputId))
+                {
+                    key = Enum.Parse<StickInputId>(value.ToString());
+                }
+            }
+
+            return key;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/MiniCommand.cs b/Ryujinx.Ava/UI/Helpers/MiniCommand.cs
new file mode 100644
index 00000000..305182c9
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/MiniCommand.cs
@@ -0,0 +1,71 @@
+using System;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public sealed class MiniCommand<T> : MiniCommand, ICommand
+    {
+        private readonly Action<T> _callback;
+        private bool _busy;
+        private Func<T, Task> _asyncCallback;
+
+        public MiniCommand(Action<T> callback)
+        {
+            _callback = callback;
+        }
+
+        public MiniCommand(Func<T, Task> callback)
+        {
+            _asyncCallback = callback;
+        }
+
+        private bool Busy
+        {
+            get => _busy;
+            set
+            {
+                _busy = value;
+                CanExecuteChanged?.Invoke(this, EventArgs.Empty);
+            }
+        }
+
+        public override event EventHandler CanExecuteChanged;
+        public override bool CanExecute(object parameter) => !_busy;
+
+        public override async void Execute(object parameter)
+        {
+            if (Busy)
+            {
+                return;
+            }
+            try
+            {
+                Busy = true;
+                if (_callback != null)
+                {
+                    _callback((T)parameter);
+                }
+                else
+                {
+                    await _asyncCallback((T)parameter);
+                }
+            }
+            finally
+            {
+                Busy = false;
+            }
+        }
+    }
+
+    public abstract class MiniCommand : ICommand
+    {
+        public static MiniCommand Create(Action callback) => new MiniCommand<object>(_ => callback());
+        public static MiniCommand Create<TArg>(Action<TArg> callback) => new MiniCommand<TArg>(callback);
+        public static MiniCommand CreateFromTask(Func<Task> callback) => new MiniCommand<object>(_ => callback());
+
+        public abstract bool CanExecute(object parameter);
+        public abstract void Execute(object parameter);
+        public abstract event EventHandler CanExecuteChanged;
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/OffscreenTextBox.cs b/Ryujinx.Ava/UI/Helpers/OffscreenTextBox.cs
new file mode 100644
index 00000000..785e785c
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/OffscreenTextBox.cs
@@ -0,0 +1,40 @@
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public class OffscreenTextBox : TextBox
+    {
+        public RoutedEvent<KeyEventArgs> GetKeyDownRoutedEvent()
+        {
+            return KeyDownEvent;
+        }
+
+        public RoutedEvent<KeyEventArgs> GetKeyUpRoutedEvent()
+        {
+            return KeyUpEvent;
+        }
+
+        public void SendKeyDownEvent(KeyEventArgs keyEvent)
+        {
+            OnKeyDown(keyEvent);
+        }
+
+        public void SendKeyUpEvent(KeyEventArgs keyEvent)
+        {
+            OnKeyUp(keyEvent);
+        }
+
+        public void SendText(string text)
+        {
+            OnTextInput(new TextInputEventArgs()
+            {
+                Text = text,
+                Device = KeyboardDevice.Instance,
+                Source = this,
+                RoutedEvent = TextInputEvent
+            });
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/OpenGLEmbeddedWindow.cs b/Ryujinx.Ava/UI/Helpers/OpenGLEmbeddedWindow.cs
new file mode 100644
index 00000000..db77f66b
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/OpenGLEmbeddedWindow.cs
@@ -0,0 +1,82 @@
+using OpenTK.Graphics.OpenGL;
+using Ryujinx.Common.Configuration;
+using SPB.Graphics;
+using SPB.Graphics.OpenGL;
+using SPB.Platform;
+using SPB.Platform.WGL;
+using SPB.Windowing;
+using System;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public class OpenGLEmbeddedWindow : EmbeddedWindow
+    {
+        private readonly int _major;
+        private readonly int _minor;
+        private readonly GraphicsDebugLevel _graphicsDebugLevel;
+        private SwappableNativeWindowBase _window;
+        public OpenGLContextBase Context { get; set; }
+
+        public OpenGLEmbeddedWindow(int major, int minor, GraphicsDebugLevel graphicsDebugLevel)
+        {
+            _major = major;
+            _minor = minor;
+            _graphicsDebugLevel = graphicsDebugLevel;
+        }
+
+        protected override void OnWindowDestroying()
+        {
+            Context.Dispose();
+            base.OnWindowDestroying();
+        }
+
+        public override void OnWindowCreated()
+        {
+            base.OnWindowCreated();
+
+            if (OperatingSystem.IsWindows())
+            {
+                _window = new WGLWindow(new NativeHandle(WindowHandle));
+            }
+            else if (OperatingSystem.IsLinux())
+            {
+                _window = X11Window;
+            }
+            else
+            {
+                throw new PlatformNotSupportedException();
+            }
+
+            var flags = OpenGLContextFlags.Compat;
+            if (_graphicsDebugLevel != GraphicsDebugLevel.None)
+            {
+                flags |= OpenGLContextFlags.Debug;
+            }
+
+            Context = PlatformHelper.CreateOpenGLContext(FramebufferFormat.Default, _major, _minor, flags);
+
+            Context.Initialize(_window);
+            Context.MakeCurrent(_window);
+
+            var bindingsContext = new OpenToolkitBindingsContext(Context.GetProcAddress);
+
+            GL.LoadBindings(bindingsContext);
+            Context.MakeCurrent(null);
+        }
+
+        public void MakeCurrent()
+        {
+            Context?.MakeCurrent(_window);
+        }
+
+        public void MakeCurrent(NativeWindowBase window)
+        {
+            Context?.MakeCurrent(window);
+        }
+
+        public void SwapBuffers()
+        {
+            _window.SwapBuffers();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/OpenToolkitBindingsContext.cs b/Ryujinx.Ava/UI/Helpers/OpenToolkitBindingsContext.cs
new file mode 100644
index 00000000..efb703ba
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/OpenToolkitBindingsContext.cs
@@ -0,0 +1,20 @@
+using OpenTK;
+using System;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class OpenToolkitBindingsContext : IBindingsContext
+    {
+        private readonly Func<string, IntPtr> _getProcAddress;
+
+        public OpenToolkitBindingsContext(Func<string, IntPtr> getProcAddress)
+        {
+            _getProcAddress = getProcAddress;
+        }
+
+        public IntPtr GetProcAddress(string procName)
+        {
+            return _getProcAddress(procName);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/SPBOpenGLContext.cs b/Ryujinx.Ava/UI/Helpers/SPBOpenGLContext.cs
new file mode 100644
index 00000000..21f206c8
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/SPBOpenGLContext.cs
@@ -0,0 +1,47 @@
+using OpenTK.Graphics.OpenGL;
+using Ryujinx.Graphics.OpenGL;
+using SPB.Graphics;
+using SPB.Graphics.OpenGL;
+using SPB.Platform;
+using SPB.Windowing;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    class SPBOpenGLContext : IOpenGLContext
+    {
+        private OpenGLContextBase _context;
+        private NativeWindowBase _window;
+
+        private SPBOpenGLContext(OpenGLContextBase context, NativeWindowBase window)
+        {
+            _context = context;
+            _window = window;
+        }
+
+        public void Dispose()
+        {
+            _context.Dispose();
+            _window.Dispose();
+        }
+
+        public void MakeCurrent()
+        {
+            _context.MakeCurrent(_window);
+        }
+
+        public static SPBOpenGLContext CreateBackgroundContext(OpenGLContextBase sharedContext)
+        {
+            OpenGLContextBase context = PlatformHelper.CreateOpenGLContext(FramebufferFormat.Default, 3, 3, OpenGLContextFlags.Compat, true, sharedContext);
+            NativeWindowBase window = PlatformHelper.CreateOpenGLWindow(FramebufferFormat.Default, 0, 0, 100, 100);
+
+            context.Initialize(window);
+            context.MakeCurrent(window);
+
+            GL.LoadBindings(new OpenToolkitBindingsContext(context.GetProcAddress));
+
+            context.MakeCurrent(null);
+
+            return new SPBOpenGLContext(context, window);
+        }
+    }
+}
diff --git a/Ryujinx.Ava/UI/Helpers/UserErrorDialog.cs b/Ryujinx.Ava/UI/Helpers/UserErrorDialog.cs
new file mode 100644
index 00000000..ab8d6edc
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/UserErrorDialog.cs
@@ -0,0 +1,91 @@
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Windows;
+using Ryujinx.Ui.Common;
+using Ryujinx.Ui.Common.Helper;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class UserErrorDialog
+    {
+        private const string SetupGuideUrl = "https://github.com/Ryujinx/Ryujinx/wiki/Ryujinx-Setup-&-Configuration-Guide";
+
+        private static string GetErrorCode(UserError error)
+        {
+            return $"RYU-{(uint)error:X4}";
+        }
+
+        private static string GetErrorTitle(UserError error)
+        {
+            return error switch
+            {
+                UserError.NoKeys => LocaleManager.Instance["UserErrorNoKeys"],
+                UserError.NoFirmware => LocaleManager.Instance["UserErrorNoFirmware"],
+                UserError.FirmwareParsingFailed => LocaleManager.Instance["UserErrorFirmwareParsingFailed"],
+                UserError.ApplicationNotFound => LocaleManager.Instance["UserErrorApplicationNotFound"],
+                UserError.Unknown => LocaleManager.Instance["UserErrorUnknown"],
+                _ => LocaleManager.Instance["UserErrorUndefined"]
+            };
+        }
+
+        private static string GetErrorDescription(UserError error)
+        {
+            return error switch
+            {
+                UserError.NoKeys => LocaleManager.Instance["UserErrorNoKeysDescription"],
+                UserError.NoFirmware => LocaleManager.Instance["UserErrorNoFirmwareDescription"],
+                UserError.FirmwareParsingFailed => LocaleManager.Instance["UserErrorFirmwareParsingFailedDescription"],
+                UserError.ApplicationNotFound => LocaleManager.Instance["UserErrorApplicationNotFoundDescription"],
+                UserError.Unknown => LocaleManager.Instance["UserErrorUnknownDescription"],
+                _ => LocaleManager.Instance["UserErrorUndefinedDescription"]
+            };
+        }
+
+        private static bool IsCoveredBySetupGuide(UserError error)
+        {
+            return error switch
+            {
+                UserError.NoKeys or
+                    UserError.NoFirmware or
+                    UserError.FirmwareParsingFailed => true,
+                _ => false
+            };
+        }
+
+        private static string GetSetupGuideUrl(UserError error)
+        {
+            if (!IsCoveredBySetupGuide(error))
+            {
+                return null;
+            }
+
+            return error switch
+            {
+                UserError.NoKeys => SetupGuideUrl + "#initial-setup---placement-of-prodkeys",
+                UserError.NoFirmware => SetupGuideUrl + "#initial-setup-continued---installation-of-firmware",
+                _ => SetupGuideUrl
+            };
+        }
+
+        public static async Task ShowUserErrorDialog(UserError error, StyleableWindow owner)
+        {
+            string errorCode = GetErrorCode(error);
+
+            bool isInSetupGuide = IsCoveredBySetupGuide(error);
+
+            string setupButtonLabel = isInSetupGuide ? LocaleManager.Instance["OpenSetupGuideMessage"] : "";
+
+            var result = await ContentDialogHelper.CreateInfoDialog(
+                string.Format(LocaleManager.Instance["DialogUserErrorDialogMessage"], errorCode, GetErrorTitle(error)),
+                GetErrorDescription(error) + (isInSetupGuide
+                    ? LocaleManager.Instance["DialogUserErrorDialogInfoMessage"]
+                    : ""), setupButtonLabel, LocaleManager.Instance["InputDialogOk"],
+                string.Format(LocaleManager.Instance["DialogUserErrorDialogTitle"], errorCode));
+
+            if (result == UserResult.Ok)
+            {
+                OpenHelper.OpenUrl(GetSetupGuideUrl(error));
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/UserResult.cs b/Ryujinx.Ava/UI/Helpers/UserResult.cs
new file mode 100644
index 00000000..57802804
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/UserResult.cs
@@ -0,0 +1,12 @@
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public enum UserResult
+    {
+        Ok,
+        Yes,
+        No,
+        Abort,
+        Cancel,
+        None,
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/VulkanEmbeddedWindow.cs b/Ryujinx.Ava/UI/Helpers/VulkanEmbeddedWindow.cs
new file mode 100644
index 00000000..6581610b
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/VulkanEmbeddedWindow.cs
@@ -0,0 +1,52 @@
+using Avalonia.Platform;
+using Silk.NET.Vulkan;
+using SPB.Graphics.Vulkan;
+using SPB.Platform.GLX;
+using SPB.Platform.Metal;
+using SPB.Platform.Win32;
+using SPB.Platform.X11;
+using SPB.Windowing;
+using System;
+using System.Runtime.Versioning;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    public class VulkanEmbeddedWindow : EmbeddedWindow
+    {
+        private NativeWindowBase _window;
+
+        [SupportedOSPlatform("linux")]
+        protected override IPlatformHandle CreateLinux(IPlatformHandle parent)
+        {
+            X11Window    = new GLXWindow(new NativeHandle(X11.DefaultDisplay), new NativeHandle(parent.Handle));
+            WindowHandle = X11Window.WindowHandle.RawHandle;
+            X11Display   = X11Window.DisplayHandle.RawHandle;
+
+            X11Window.Hide();
+
+            return new PlatformHandle(WindowHandle, "X11");
+        }
+
+        public SurfaceKHR CreateSurface(Instance instance)
+        {
+            if (OperatingSystem.IsWindows())
+            {
+                _window = new SimpleWin32Window(new NativeHandle(WindowHandle));
+            }
+            else if (OperatingSystem.IsLinux())
+            {
+                _window = new SimpleX11Window(new NativeHandle(X11Display), new NativeHandle(WindowHandle));
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                _window = new SimpleMetalWindow(new NativeHandle(NsView), new NativeHandle(MetalLayer));
+            }
+            else
+            {
+                throw new PlatformNotSupportedException();
+            }
+
+            return new SurfaceKHR((ulong?)VulkanHelper.CreateWindowSurface(instance.Handle, _window));
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Ava/UI/Helpers/Win32NativeInterop.cs b/Ryujinx.Ava/UI/Helpers/Win32NativeInterop.cs
new file mode 100644
index 00000000..1e6e3c3b
--- /dev/null
+++ b/Ryujinx.Ava/UI/Helpers/Win32NativeInterop.cs
@@ -0,0 +1,107 @@
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    [SupportedOSPlatform("windows")]
+    internal partial class Win32NativeInterop
+    {
+        [Flags]
+        public enum ClassStyles : uint
+        {
+            CS_CLASSDC = 0x40,
+            CS_OWNDC = 0x20,
+        }
+
+        [Flags]
+        public enum WindowStyles : uint
+        {
+            WS_CHILD = 0x40000000
+        }
+
+        public enum Cursors : uint
+        {
+            IDC_ARROW = 32512
+        }
+
+        public enum WindowsMessages : uint
+        {
+            MOUSEMOVE = 0x0200,
+            LBUTTONDOWN = 0x0201,
+            LBUTTONUP = 0x0202,
+            LBUTTONDBLCLK = 0x0203,
+            RBUTTONDOWN = 0x0204,
+            RBUTTONUP = 0x0205,
+            RBUTTONDBLCLK = 0x0206,
+            MBUTTONDOWN = 0x0207,
+            MBUTTONUP = 0x0208,
+            MBUTTONDBLCLK = 0x0209,
+            MOUSEWHEEL = 0x020A,
+            XBUTTONDOWN = 0x020B,
+            XBUTTONUP = 0x020C,
+            XBUTTONDBLCLK = 0x020D,
+            MOUSEHWHEEL = 0x020E,
+            MOUSELAST = 0x020E
+        }
+
+        [UnmanagedFunctionPointer(CallingConvention.Winapi)]
+        internal delegate IntPtr WindowProc(IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam);
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct WNDCLASSEX
+        {
+            public int cbSize;
+            public ClassStyles style;
+            public IntPtr lpfnWndProc; // not WndProc
+            public int cbClsExtra;
+            public int cbWndExtra;
+            public IntPtr hInstance;
+            public IntPtr hIcon;
+            public IntPtr hCursor;
+            public IntPtr hbrBackground;
+            public IntPtr lpszMenuName;
+            public IntPtr lpszClassName;
+            public IntPtr hIconSm;
+
+            public WNDCLASSEX()
+            {
+                cbSize = Marshal.SizeOf<WNDCLASSEX>();
+            }
+        }
+
+        [LibraryImport("user32.dll", SetLastError = true, EntryPoint = "RegisterClassExW")]
+        public static partial ushort RegisterClassEx(ref WNDCLASSEX param);
+
+        [LibraryImport("user32.dll", SetLastError = true, EntryPoint = "UnregisterClassW")]
+        public static partial short UnregisterClass([MarshalAs(UnmanagedType.LPWStr)] string lpClassName, IntPtr instance);
+
+        [LibraryImport("user32.dll", EntryPoint = "DefWindowProcW")]
+        public static partial IntPtr DefWindowProc(IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam);
+
+        [LibraryImport("kernel32.dll", EntryPoint = "GetModuleHandleA")]
+        public static partial IntPtr GetModuleHandle([MarshalAs(UnmanagedType.LPStr)] string lpModuleName);
+
+        [LibraryImport("user32.dll", SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static partial bool DestroyWindow(IntPtr hwnd);
+
+        [LibraryImport("user32.dll", SetLastError = true, EntryPoint = "LoadCursorA")]
+        public static partial IntPtr LoadCursor(IntPtr hInstance, IntPtr lpCursorName);
+
+        [LibraryImport("user32.dll", SetLastError = true, EntryPoint = "CreateWindowExW")]
+        public static partial IntPtr CreateWindowEx(
+           uint dwExStyle,
+           [MarshalAs(UnmanagedType.LPWStr)] string lpClassName,
+           [MarshalAs(UnmanagedType.LPWStr)] string lpWindowName,
+           WindowStyles dwStyle,
+           int x,
+           int y,
+           int nWidth,
+           int nHeight,
+           IntPtr hWndParent,
+           IntPtr hMenu,
+           IntPtr hInstance,
+           IntPtr lpParam);
+    }
+}