1 files changed, 99 insertions, 0 deletions
diff --git a/src/Ryujinx.Input/HLE/TouchScreenManager.cs b/src/Ryujinx.Input/HLE/TouchScreenManager.cs
new file mode 100644
index 00000000..e4b0f8fc
--- /dev/null
+++ b/src/Ryujinx.Input/HLE/TouchScreenManager.cs
@@ -0,0 +1,99 @@
+using Ryujinx.HLE;
+using Ryujinx.HLE.HOS.Services.Hid;
+using Ryujinx.HLE.HOS.Services.Hid.Types.SharedMemory.TouchScreen;
+using System;
+
+namespace Ryujinx.Input.HLE
+{
+    public class TouchScreenManager : IDisposable
+    {
+        private readonly IMouse _mouse;
+        private Switch _device;
+        private bool _wasClicking;
+
+        public TouchScreenManager(IMouse mouse)
+        {
+            _mouse = mouse;
+        }
+
+        public void Initialize(Switch device)
+        {
+            _device = device;
+        }
+
+        public bool Update(bool isFocused, bool isClicking = false, float aspectRatio = 0)
+        {
+            if (!isFocused || (!_wasClicking && !isClicking))
+            {
+                // In case we lost focus, send the end touch.
+                if (_wasClicking && !isClicking)
+                {
+                    MouseStateSnapshot snapshot = IMouse.GetMouseStateSnapshot(_mouse);
+                    var touchPosition = IMouse.GetScreenPosition(snapshot.Position, _mouse.ClientSize, aspectRatio);
+
+                    TouchPoint currentPoint = new TouchPoint
+                    {
+                        Attribute = TouchAttribute.End,
+
+                        X = (uint)touchPosition.X,
+                        Y = (uint)touchPosition.Y,
+
+                        // Placeholder values till more data is acquired
+                        DiameterX = 10,
+                        DiameterY = 10,
+                        Angle = 90
+                    };
+
+                    _device.Hid.Touchscreen.Update(currentPoint);
+
+                }
+
+                _wasClicking = false;
+
+                _device.Hid.Touchscreen.Update();
+
+                return false;
+            }
+
+            if (aspectRatio > 0)
+            {
+                MouseStateSnapshot snapshot = IMouse.GetMouseStateSnapshot(_mouse);
+                var touchPosition = IMouse.GetScreenPosition(snapshot.Position, _mouse.ClientSize, aspectRatio);
+
+                TouchAttribute attribute = TouchAttribute.None;
+
+                if (!_wasClicking && isClicking)
+                {
+                    attribute = TouchAttribute.Start;
+                }
+                else if (_wasClicking && !isClicking)
+                {
+                    attribute = TouchAttribute.End;
+                }
+
+                TouchPoint currentPoint = new TouchPoint
+                {
+                    Attribute = attribute,
+
+                    X = (uint)touchPosition.X,
+                    Y = (uint)touchPosition.Y,
+
+                    // Placeholder values till more data is acquired
+                    DiameterX = 10,
+                    DiameterY = 10,
+                    Angle = 90
+                };
+
+                _device.Hid.Touchscreen.Update(currentPoint);
+
+                _wasClicking = isClicking;
+
+                return true;
+            }
+
+            return false;
+        }
+
+        public void Dispose() { }
+    }
+}
+\ No newline at end of file