1 files changed, 186 insertions, 0 deletions
diff --git a/Ryujinx.Ava/Input/AvaloniaKeyboardMappingHelper.cs b/Ryujinx.Ava/Input/AvaloniaKeyboardMappingHelper.cs
new file mode 100644
index 00000000..8400ddad
--- /dev/null
+++ b/Ryujinx.Ava/Input/AvaloniaKeyboardMappingHelper.cs
@@ -0,0 +1,186 @@
+using Ryujinx.Input;
+using System;
+using System.Collections.Generic;
+using AvaKey = Avalonia.Input.Key;
+
+namespace Ryujinx.Ava.Input
+{
+    internal static class AvaloniaKeyboardMappingHelper
+    {
+        private static readonly AvaKey[] _keyMapping = new AvaKey[(int)Key.Count]
+        {
+            // NOTE: Invalid
+            AvaKey.None,
+
+            AvaKey.LeftShift,
+            AvaKey.RightShift,
+            AvaKey.LeftCtrl,
+            AvaKey.RightCtrl,
+            AvaKey.LeftAlt,
+            AvaKey.RightAlt,
+            AvaKey.LWin,
+            AvaKey.RWin,
+            AvaKey.Apps,
+            AvaKey.F1,
+            AvaKey.F2,
+            AvaKey.F3,
+            AvaKey.F4,
+            AvaKey.F5,
+            AvaKey.F6,
+            AvaKey.F7,
+            AvaKey.F8,
+            AvaKey.F9,
+            AvaKey.F10,
+            AvaKey.F11,
+            AvaKey.F12,
+            AvaKey.F13,
+            AvaKey.F14,
+            AvaKey.F15,
+            AvaKey.F16,
+            AvaKey.F17,
+            AvaKey.F18,
+            AvaKey.F19,
+            AvaKey.F20,
+            AvaKey.F21,
+            AvaKey.F22,
+            AvaKey.F23,
+            AvaKey.F24,
+
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+            AvaKey.None,
+
+            AvaKey.Up,
+            AvaKey.Down,
+            AvaKey.Left,
+            AvaKey.Right,
+            AvaKey.Return,
+            AvaKey.Escape,
+            AvaKey.Space,
+            AvaKey.Tab,
+            AvaKey.Back,
+            AvaKey.Insert,
+            AvaKey.Delete,
+            AvaKey.PageUp,
+            AvaKey.PageDown,
+            AvaKey.Home,
+            AvaKey.End,
+            AvaKey.CapsLock,
+            AvaKey.Scroll,
+            AvaKey.Print,
+            AvaKey.Pause,
+            AvaKey.NumLock,
+            AvaKey.Clear,
+            AvaKey.NumPad0,
+            AvaKey.NumPad1,
+            AvaKey.NumPad2,
+            AvaKey.NumPad3,
+            AvaKey.NumPad4,
+            AvaKey.NumPad5,
+            AvaKey.NumPad6,
+            AvaKey.NumPad7,
+            AvaKey.NumPad8,
+            AvaKey.NumPad9,
+            AvaKey.Divide,
+            AvaKey.Multiply,
+            AvaKey.Subtract,
+            AvaKey.Add,
+            AvaKey.Decimal,
+            AvaKey.Enter,
+            AvaKey.A,
+            AvaKey.B,
+            AvaKey.C,
+            AvaKey.D,
+            AvaKey.E,
+            AvaKey.F,
+            AvaKey.G,
+            AvaKey.H,
+            AvaKey.I,
+            AvaKey.J,
+            AvaKey.K,
+            AvaKey.L,
+            AvaKey.M,
+            AvaKey.N,
+            AvaKey.O,
+            AvaKey.P,
+            AvaKey.Q,
+            AvaKey.R,
+            AvaKey.S,
+            AvaKey.T,
+            AvaKey.U,
+            AvaKey.V,
+            AvaKey.W,
+            AvaKey.X,
+            AvaKey.Y,
+            AvaKey.Z,
+            AvaKey.D0,
+            AvaKey.D1,
+            AvaKey.D2,
+            AvaKey.D3,
+            AvaKey.D4,
+            AvaKey.D5,
+            AvaKey.D6,
+            AvaKey.D7,
+            AvaKey.D8,
+            AvaKey.D9,
+            AvaKey.OemTilde,
+            AvaKey.OemTilde,AvaKey.OemMinus,
+            AvaKey.OemPlus,
+            AvaKey.OemOpenBrackets,
+            AvaKey.OemCloseBrackets,
+            AvaKey.OemSemicolon,
+            AvaKey.OemQuotes,
+            AvaKey.OemComma,
+            AvaKey.OemPeriod,
+            AvaKey.OemQuestion,
+            AvaKey.OemBackslash,
+
+            // NOTE: invalid
+            AvaKey.None
+        };
+
+        private static readonly Dictionary<AvaKey, Key> _avaKeyMapping;
+
+        static AvaloniaKeyboardMappingHelper()
+        {
+            var inputKeys = Enum.GetValues(typeof(Key));
+
+            // NOTE: Avalonia.Input.Key is not contiguous and quite large, so use a dictionary instead of an array.
+            _avaKeyMapping = new Dictionary<AvaKey, Key>();
+
+            foreach (var key in inputKeys)
+            {
+                if (TryGetAvaKey((Key)key, out var index))
+                {
+                    _avaKeyMapping[index] = (Key)key;
+                }
+            }
+        }
+
+        public static bool TryGetAvaKey(Key key, out AvaKey avaKey)
+        {
+            avaKey = AvaKey.None;
+
+            bool keyExist = (int)key < _keyMapping.Length;
+            if (keyExist)
+            {
+                avaKey = _keyMapping[(int)key];
+            }
+
+            return keyExist;
+        }
+
+        public static Key ToInputKey(AvaKey key)
+        {
+            return _avaKeyMapping.GetValueOrDefault(key, Key.Unknown);
+        }
+    }
+}
+\ No newline at end of file