1 files changed, 159 insertions, 0 deletions
diff --git a/src/Ryujinx/Input/AvaloniaMouseDriver.cs b/src/Ryujinx/Input/AvaloniaMouseDriver.cs
new file mode 100644
index 00000000..e71bbf64
--- /dev/null
+++ b/src/Ryujinx/Input/AvaloniaMouseDriver.cs
@@ -0,0 +1,159 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Ryujinx.Input;
+using System;
+using System.Numerics;
+using MouseButton = Ryujinx.Input.MouseButton;
+using Size = System.Drawing.Size;
+
+namespace Ryujinx.Ava.Input
+{
+    internal class AvaloniaMouseDriver : IGamepadDriver
+    {
+        private Control _widget;
+        private bool _isDisposed;
+        private Size _size;
+        private readonly TopLevel _window;
+
+        public bool[] PressedButtons { get; }
+        public Vector2 CurrentPosition { get; private set; }
+        public Vector2 Scroll { get; private set; }
+
+        public string DriverName => "AvaloniaMouseDriver";
+        public ReadOnlySpan<string> GamepadsIds => new[] { "0" };
+
+        public AvaloniaMouseDriver(TopLevel window, Control parent)
+        {
+            _widget = parent;
+            _window = window;
+
+            _widget.PointerMoved += Parent_PointerMovedEvent;
+            _widget.PointerPressed += Parent_PointerPressedEvent;
+            _widget.PointerReleased += Parent_PointerReleasedEvent;
+            _widget.PointerWheelChanged += Parent_PointerWheelChanged;
+
+            _window.PointerMoved += Parent_PointerMovedEvent;
+            _window.PointerPressed += Parent_PointerPressedEvent;
+            _window.PointerReleased += Parent_PointerReleasedEvent;
+            _window.PointerWheelChanged += Parent_PointerWheelChanged;
+
+            PressedButtons = new bool[(int)MouseButton.Count];
+
+            _size = new Size((int)parent.Bounds.Width, (int)parent.Bounds.Height);
+
+            parent.GetObservable(Visual.BoundsProperty).Subscribe(Resized);
+        }
+
+        public event Action<string> OnGamepadConnected
+        {
+            add { }
+            remove { }
+        }
+
+        public event Action<string> OnGamepadDisconnected
+        {
+            add { }
+            remove { }
+        }
+
+        private void Resized(Rect rect)
+        {
+            _size = new Size((int)rect.Width, (int)rect.Height);
+        }
+
+        private void Parent_PointerWheelChanged(object o, PointerWheelEventArgs args)
+        {
+            Scroll = new Vector2((float)args.Delta.X, (float)args.Delta.Y);
+        }
+
+        private void Parent_PointerReleasedEvent(object o, PointerReleasedEventArgs args)
+        {
+            uint button = (uint)args.InitialPressMouseButton - 1;
+
+            if ((uint)PressedButtons.Length > button)
+            {
+                PressedButtons[button] = false;
+            }
+        }
+        private void Parent_PointerPressedEvent(object o, PointerPressedEventArgs args)
+        {
+            uint button = (uint)args.GetCurrentPoint(_widget).Properties.PointerUpdateKind;
+
+            if ((uint)PressedButtons.Length > button)
+            {
+                PressedButtons[button] = true;
+            }
+        }
+
+        private void Parent_PointerMovedEvent(object o, PointerEventArgs args)
+        {
+            Point position = args.GetPosition(_widget);
+
+            CurrentPosition = new Vector2((float)position.X, (float)position.Y);
+        }
+
+        public void SetMousePressed(MouseButton button)
+        {
+            if ((uint)PressedButtons.Length > (uint)button)
+            {
+                PressedButtons[(uint)button] = true;
+            }
+        }
+
+        public void SetMouseReleased(MouseButton button)
+        {
+            if ((uint)PressedButtons.Length > (uint)button)
+            {
+                PressedButtons[(uint)button] = false;
+            }
+        }
+
+        public void SetPosition(double x, double y)
+        {
+            CurrentPosition = new Vector2((float)x, (float)y);
+        }
+
+        public bool IsButtonPressed(MouseButton button)
+        {
+            if ((uint)PressedButtons.Length > (uint)button)
+            {
+                return PressedButtons[(uint)button];
+            }
+
+            return false;
+        }
+
+        public Size GetClientSize()
+        {
+            return _size;
+        }
+
+        public IGamepad GetGamepad(string id)
+        {
+            return new AvaloniaMouse(this);
+        }
+
+        public void Dispose()
+        {
+            if (_isDisposed)
+            {
+                return;
+            }
+
+            _isDisposed = true;
+
+            _widget.PointerMoved -= Parent_PointerMovedEvent;
+            _widget.PointerPressed -= Parent_PointerPressedEvent;
+            _widget.PointerReleased -= Parent_PointerReleasedEvent;
+            _widget.PointerWheelChanged -= Parent_PointerWheelChanged;
+
+            _window.PointerMoved -= Parent_PointerMovedEvent;
+            _window.PointerPressed -= Parent_PointerPressedEvent;
+            _window.PointerReleased -= Parent_PointerReleasedEvent;
+            _window.PointerWheelChanged -= Parent_PointerWheelChanged;
+
+            _widget = null;
+        }
+    }
+}