add Quartz key input handler

unused of course since no macOS support, but there when we need it

src/BizHawk.Bizware.Input/OSTailoredKeyInputAdapter.cs

@@ -13,7 +13,8 @@ namespace BizHawk.Bizware.Input
 	/// Abstract class which only handles keyboard input
 	/// Uses OS specific functionality, as there is no good cross platform way to do this
 	/// (mostly as all the available cross-platform options require a focused window, arg!)
-	/// TODO: Doesn't work for Wayland or macOS yet (maybe Linux should just use evdev here)
+	/// TODO: Doesn't work for Wayland yet (maybe Linux should just use evdev here)
+	/// TODO: Stop using a ton of static classes here, checking CurrentOS constantly is annoying...
 	/// </summary>
 	public abstract class OSTailoredKeyInputAdapter : IHostInputAdapter
 	{
@@ -29,9 +30,8 @@ namespace BizHawk.Bizware.Input
 					X11KeyInput.Deinitialize();
 					break;
 				case OSTailoredCode.DistinctOS.macOS:
-					//QuartzKeyInput.Deinitialize();
+					QuartzKeyInput.Deinitialize();
-					//break;
+					break;
-					throw new NotSupportedException("TODO QUARTZ");
 				case OSTailoredCode.DistinctOS.Windows:
 					RAWKeyInput.Deinitialize();
 					break;
@@ -50,9 +50,8 @@ namespace BizHawk.Bizware.Input
 					X11KeyInput.Initialize();
 					break;
 				case OSTailoredCode.DistinctOS.macOS:
-					//QuartzKeyInput.Initialize();
+					QuartzKeyInput.Initialize();
-					//break;
+					break;
-					throw new NotSupportedException("TODO QUARTZ");
 				case OSTailoredCode.DistinctOS.Windows:
 					RAWKeyInput.Initialize();
 					break;
@@ -76,7 +75,7 @@ namespace BizHawk.Bizware.Input
 			var ret = OSTailoredCode.CurrentOS switch
 			{
 				OSTailoredCode.DistinctOS.Linux => X11KeyInput.Update(),
-				OSTailoredCode.DistinctOS.macOS => throw new NotSupportedException("TODO QUARTZ"),
+				OSTailoredCode.DistinctOS.macOS => QuartzKeyInput.Update(),
 				OSTailoredCode.DistinctOS.Windows => RAWKeyInput.Update(_config ?? throw new(nameof(ProcessHostKeyboards) + " called before the global config was passed")),
 				_ => throw new InvalidOperationException()
 			};

src/BizHawk.Bizware.Input/Quartz/QuartzKeyInput.cs

@@ -0,0 +1,175 @@
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+
+using BizHawk.Client.Common;
+
+using static BizHawk.Common.QuartzImports;
+
+namespace BizHawk.Bizware.Input
+{
+	internal static class QuartzKeyInput
+	{
+		private static readonly bool[] LastKeyState = new bool[0x7F];
+		private static readonly object _syncObject = new();
+
+		public static void Initialize()
+		{
+			lock (_syncObject)
+			{
+				Deinitialize();
+			}
+		}
+
+		public static void Deinitialize()
+		{
+			lock (_syncObject)
+			{
+				Array.Clear(LastKeyState, 0, LastKeyState.Length);
+			}
+		}
+
+		public static IEnumerable<KeyEvent> Update()
+		{
+			lock (_syncObject)
+			{
+				var eventList = new List<KeyEvent>();
+				for (var keycode = 0; keycode < 0x7F; keycode++)
+				{
+					var keystate = CGEventSourceKeyState(
+						CGEventSourceStateID.kCGEventSourceStateHIDSystemState, (CGKeyCode)keycode);
+
+					if (LastKeyState[keycode] != keystate)
+					{
+						if (KeyEnumMap.TryGetValue((CGKeyCode)keycode, out var key))
+						{
+							eventList.Add(new(key, pressed: keystate));
+							LastKeyState[keycode] = keystate;
+						}
+					}
+				}
+
+				return eventList;
+			}
+		}
+
+		private static readonly IReadOnlyDictionary<CGKeyCode, DistinctKey> KeyEnumMap = new Dictionary<CGKeyCode, DistinctKey>
+		{
+			[CGKeyCode.kVK_ANSI_A] = DistinctKey.A,
+			[CGKeyCode.kVK_ANSI_S] = DistinctKey.S,
+			[CGKeyCode.kVK_ANSI_D] = DistinctKey.D,
+			[CGKeyCode.kVK_ANSI_F] = DistinctKey.F,
+			[CGKeyCode.kVK_ANSI_H] = DistinctKey.H,
+			[CGKeyCode.kVK_ANSI_G] = DistinctKey.G,
+			[CGKeyCode.kVK_ANSI_Z] = DistinctKey.Z,
+			[CGKeyCode.kVK_ANSI_X] = DistinctKey.X,
+			[CGKeyCode.kVK_ANSI_C] = DistinctKey.C,
+			[CGKeyCode.kVK_ANSI_V] = DistinctKey.V,
+			[CGKeyCode.kVK_ANSI_B] = DistinctKey.B,
+			[CGKeyCode.kVK_ANSI_Q] = DistinctKey.Q,
+			[CGKeyCode.kVK_ANSI_W] = DistinctKey.W,
+			[CGKeyCode.kVK_ANSI_E] = DistinctKey.E,
+			[CGKeyCode.kVK_ANSI_R] = DistinctKey.R,
+			[CGKeyCode.kVK_ANSI_Y] = DistinctKey.Y,
+			[CGKeyCode.kVK_ANSI_T] = DistinctKey.T,
+			[CGKeyCode.kVK_ANSI_1] = DistinctKey.D1,
+			[CGKeyCode.kVK_ANSI_2] = DistinctKey.D2,
+			[CGKeyCode.kVK_ANSI_3] = DistinctKey.D3,
+			[CGKeyCode.kVK_ANSI_4] = DistinctKey.D4,
+			[CGKeyCode.kVK_ANSI_6] = DistinctKey.D6,
+			[CGKeyCode.kVK_ANSI_5] = DistinctKey.D5,
+			[CGKeyCode.kVK_ANSI_Equal] = DistinctKey.OemPlus,
+			[CGKeyCode.kVK_ANSI_9] = DistinctKey.D9,
+			[CGKeyCode.kVK_ANSI_7] = DistinctKey.D7,
+			[CGKeyCode.kVK_ANSI_Minus] = DistinctKey.OemMinus,
+			[CGKeyCode.kVK_ANSI_8] = DistinctKey.D8,
+			[CGKeyCode.kVK_ANSI_0] = DistinctKey.D0,
+			[CGKeyCode.kVK_ANSI_RightBracket] = DistinctKey.OemCloseBrackets,
+			[CGKeyCode.kVK_ANSI_O] = DistinctKey.O,
+			[CGKeyCode.kVK_ANSI_U] = DistinctKey.U,
+			[CGKeyCode.kVK_ANSI_LeftBracket] = DistinctKey.OemOpenBrackets,
+			[CGKeyCode.kVK_ANSI_I] = DistinctKey.I,
+			[CGKeyCode.kVK_ANSI_P] = DistinctKey.P,
+			[CGKeyCode.kVK_Return] = DistinctKey.Return,
+			[CGKeyCode.kVK_ANSI_L] = DistinctKey.L,
+			[CGKeyCode.kVK_ANSI_J] = DistinctKey.J,
+			[CGKeyCode.kVK_ANSI_Quote] = DistinctKey.OemQuotes,
+			[CGKeyCode.kVK_ANSI_K] = DistinctKey.K,
+			[CGKeyCode.kVK_ANSI_Semicolon] = DistinctKey.OemSemicolon,
+			[CGKeyCode.kVK_ANSI_Backslash] = DistinctKey.OemBackslash,
+			[CGKeyCode.kVK_ANSI_Comma] = DistinctKey.OemComma,
+			[CGKeyCode.kVK_ANSI_Slash] = DistinctKey.OemQuestion,
+			[CGKeyCode.kVK_ANSI_N] = DistinctKey.N,
+			[CGKeyCode.kVK_ANSI_M] = DistinctKey.M,
+			[CGKeyCode.kVK_ANSI_Period] = DistinctKey.OemPeriod,
+			[CGKeyCode.kVK_Tab] = DistinctKey.Tab,
+			[CGKeyCode.kVK_Space] = DistinctKey.Space,
+			[CGKeyCode.kVK_ANSI_Grave] = DistinctKey.OemTilde,
+			[CGKeyCode.kVK_Delete] = DistinctKey.Delete,
+			[CGKeyCode.kVK_Escape] = DistinctKey.Escape,
+			[CGKeyCode.kVK_RightCommand] = DistinctKey.RWin,
+			[CGKeyCode.kVK_Command] = DistinctKey.LWin,
+			[CGKeyCode.kVK_Shift] = DistinctKey.LeftShift,
+			[CGKeyCode.kVK_CapsLock] = DistinctKey.CapsLock,
+			[CGKeyCode.kVK_Option] = DistinctKey.LeftAlt,
+			[CGKeyCode.kVK_Control] = DistinctKey.LeftCtrl,
+			[CGKeyCode.kVK_RightShift] = DistinctKey.RightShift,
+			[CGKeyCode.kVK_RightOption] = DistinctKey.RightAlt,
+			[CGKeyCode.kVK_RightControl] = DistinctKey.RightCtrl,
+			// [CGKeyCode.kVK_Function] = DistinctKey.,
+			[CGKeyCode.kVK_F17] = DistinctKey.F17,
+			[CGKeyCode.kVK_ANSI_KeypadDecimal] = DistinctKey.Decimal,
+			[CGKeyCode.kVK_ANSI_KeypadMultiply] = DistinctKey.Multiply,
+			[CGKeyCode.kVK_ANSI_KeypadPlus] = DistinctKey.Add,
+			[CGKeyCode.kVK_ANSI_KeypadClear] = DistinctKey.Clear,
+			[CGKeyCode.kVK_VolumeUp] = DistinctKey.VolumeUp,
+			[CGKeyCode.kVK_VolumeDown] = DistinctKey.VolumeDown,
+			[CGKeyCode.kVK_Mute] = DistinctKey.VolumeMute,
+			[CGKeyCode.kVK_ANSI_KeypadDivide] = DistinctKey.Divide,
+			[CGKeyCode.kVK_ANSI_KeypadEnter] = DistinctKey.NumPadEnter,
+			[CGKeyCode.kVK_ANSI_KeypadMinus] = DistinctKey.Subtract,
+			[CGKeyCode.kVK_F18] = DistinctKey.F18,
+			[CGKeyCode.kVK_F19] = DistinctKey.F19,
+			[CGKeyCode.kVK_ANSI_KeypadEquals] = DistinctKey.OemPlus,
+			[CGKeyCode.kVK_ANSI_Keypad0] = DistinctKey.NumPad0,
+			[CGKeyCode.kVK_ANSI_Keypad1] = DistinctKey.NumPad1,
+			[CGKeyCode.kVK_ANSI_Keypad2] = DistinctKey.NumPad2,
+			[CGKeyCode.kVK_ANSI_Keypad3] = DistinctKey.NumPad3,
+			[CGKeyCode.kVK_ANSI_Keypad4] = DistinctKey.NumPad4,
+			[CGKeyCode.kVK_ANSI_Keypad5] = DistinctKey.NumPad5,
+			[CGKeyCode.kVK_ANSI_Keypad6] = DistinctKey.NumPad6,
+			[CGKeyCode.kVK_ANSI_Keypad7] = DistinctKey.NumPad7,
+			[CGKeyCode.kVK_F20] = DistinctKey.F20,
+			[CGKeyCode.kVK_ANSI_Keypad8] = DistinctKey.NumPad8,
+			[CGKeyCode.kVK_ANSI_Keypad9] = DistinctKey.NumPad9,
+			[CGKeyCode.kVK_F5] = DistinctKey.F5,
+			[CGKeyCode.kVK_F6] = DistinctKey.F6,
+			[CGKeyCode.kVK_F7] = DistinctKey.F7,
+			[CGKeyCode.kVK_F3] = DistinctKey.F3,
+			[CGKeyCode.kVK_F8] = DistinctKey.F8,
+			[CGKeyCode.kVK_F9] = DistinctKey.F9,
+			[CGKeyCode.kVK_F11] = DistinctKey.F11,
+			[CGKeyCode.kVK_F13] = DistinctKey.F13,
+			[CGKeyCode.kVK_F16] = DistinctKey.F16,
+			[CGKeyCode.kVK_F14] = DistinctKey.F14,
+			[CGKeyCode.kVK_F10] = DistinctKey.F10,
+			[CGKeyCode.kVK_ContextMenu] = DistinctKey.Apps,
+			[CGKeyCode.kVK_F12] = DistinctKey.F12,
+			[CGKeyCode.kVK_F15] = DistinctKey.F15,
+			[CGKeyCode.kVK_Help] = DistinctKey.Help,
+			[CGKeyCode.kVK_Home] = DistinctKey.Home,
+			[CGKeyCode.kVK_PageUp] = DistinctKey.PageUp,
+			[CGKeyCode.kVK_ForwardDelete] = DistinctKey.Delete,
+			[CGKeyCode.kVK_F4] = DistinctKey.F4,
+			[CGKeyCode.kVK_End] = DistinctKey.End,
+			[CGKeyCode.kVK_F2] = DistinctKey.F2,
+			[CGKeyCode.kVK_PageDown] = DistinctKey.PageDown,
+			[CGKeyCode.kVK_F1] = DistinctKey.F1,
+			[CGKeyCode.kVK_LeftArrow] = DistinctKey.Left,
+			[CGKeyCode.kVK_RightArrow] = DistinctKey.Right,
+			[CGKeyCode.kVK_DownArrow] = DistinctKey.Down,
+			[CGKeyCode.kVK_UpArrow] = DistinctKey.Up,
+		};
+	}
+}

src/BizHawk.Common/macOS/QuartzImports.cs

@@ -0,0 +1,137 @@
+#nullable enable
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace BizHawk.Common
+{
+	public static class QuartzImports
+	{
+		public enum CGEventSourceStateID : int
+		{
+			kCGEventSourceStateHIDSystemState = 1,
+		}
+
+		public enum CGKeyCode : ushort
+		{
+			kVK_ANSI_A = 0x00,
+			kVK_ANSI_S = 0x01,
+			kVK_ANSI_D = 0x02,
+			kVK_ANSI_F = 0x03,
+			kVK_ANSI_H = 0x04,
+			kVK_ANSI_G = 0x05,
+			kVK_ANSI_Z = 0x06,
+			kVK_ANSI_X = 0x07,
+			kVK_ANSI_C = 0x08,
+			kVK_ANSI_V = 0x09,
+			kVK_ANSI_B = 0x0B,
+			kVK_ANSI_Q = 0x0C,
+			kVK_ANSI_W = 0x0D,
+			kVK_ANSI_E = 0x0E,
+			kVK_ANSI_R = 0x0F,
+			kVK_ANSI_Y = 0x10,
+			kVK_ANSI_T = 0x11,
+			kVK_ANSI_1 = 0x12,
+			kVK_ANSI_2 = 0x13,
+			kVK_ANSI_3 = 0x14,
+			kVK_ANSI_4 = 0x15,
+			kVK_ANSI_6 = 0x16,
+			kVK_ANSI_5 = 0x17,
+			kVK_ANSI_Equal = 0x18,
+			kVK_ANSI_9 = 0x19,
+			kVK_ANSI_7 = 0x1A,
+			kVK_ANSI_Minus = 0x1B,
+			kVK_ANSI_8 = 0x1C,
+			kVK_ANSI_0 = 0x1D,
+			kVK_ANSI_RightBracket = 0x1E,
+			kVK_ANSI_O = 0x1F,
+			kVK_ANSI_U = 0x20,
+			kVK_ANSI_LeftBracket = 0x21,
+			kVK_ANSI_I = 0x22,
+			kVK_ANSI_P = 0x23,
+			kVK_Return = 0x24,
+			kVK_ANSI_L = 0x25,
+			kVK_ANSI_J = 0x26,
+			kVK_ANSI_Quote = 0x27,
+			kVK_ANSI_K = 0x28,
+			kVK_ANSI_Semicolon = 0x29,
+			kVK_ANSI_Backslash = 0x2A,
+			kVK_ANSI_Comma = 0x2B,
+			kVK_ANSI_Slash = 0x2C,
+			kVK_ANSI_N = 0x2D,
+			kVK_ANSI_M = 0x2E,
+			kVK_ANSI_Period = 0x2F,
+			kVK_Tab = 0x30,
+			kVK_Space = 0x31,
+			kVK_ANSI_Grave = 0x32,
+			kVK_Delete = 0x33,
+			kVK_Escape = 0x35,
+			kVK_RightCommand = 0x36,
+			kVK_Command = 0x37,
+			kVK_Shift = 0x38,
+			kVK_CapsLock = 0x39,
+			kVK_Option = 0x3A,
+			kVK_Control = 0x3B,
+			kVK_RightShift = 0x3C,
+			kVK_RightOption = 0x3D,
+			kVK_RightControl = 0x3E,
+			kVK_Function = 0x3F,
+			kVK_F17 = 0x40,
+			kVK_ANSI_KeypadDecimal = 0x41,
+			kVK_ANSI_KeypadMultiply = 0x43,
+			kVK_ANSI_KeypadPlus = 0x45,
+			kVK_ANSI_KeypadClear = 0x47,
+			kVK_VolumeUp = 0x48,
+			kVK_VolumeDown = 0x49,
+			kVK_Mute = 0x4A,
+			kVK_ANSI_KeypadDivide = 0x4B,
+			kVK_ANSI_KeypadEnter = 0x4C,
+			kVK_ANSI_KeypadMinus = 0x4E,
+			kVK_F18 = 0x4F,
+			kVK_F19 = 0x50,
+			kVK_ANSI_KeypadEquals = 0x51,
+			kVK_ANSI_Keypad0 = 0x52,
+			kVK_ANSI_Keypad1 = 0x53,
+			kVK_ANSI_Keypad2 = 0x54,
+			kVK_ANSI_Keypad3 = 0x55,
+			kVK_ANSI_Keypad4 = 0x56,
+			kVK_ANSI_Keypad5 = 0x57,
+			kVK_ANSI_Keypad6 = 0x58,
+			kVK_ANSI_Keypad7 = 0x59,
+			kVK_F20 = 0x5A,
+			kVK_ANSI_Keypad8 = 0x5B,
+			kVK_ANSI_Keypad9 = 0x5C,
+			kVK_F5 = 0x60,
+			kVK_F6 = 0x61,
+			kVK_F7 = 0x62,
+			kVK_F3 = 0x63,
+			kVK_F8 = 0x64,
+			kVK_F9 = 0x65,
+			kVK_F11 = 0x67,
+			kVK_F13 = 0x69,
+			kVK_F16 = 0x6A,
+			kVK_F14 = 0x6B,
+			kVK_F10 = 0x6D,
+			kVK_ContextMenu = 0x6E,
+			kVK_F12 = 0x6F,
+			kVK_F15 = 0x71,
+			kVK_Help = 0x72,
+			kVK_Home = 0x73,
+			kVK_PageUp = 0x74,
+			kVK_ForwardDelete = 0x75,
+			kVK_F4 = 0x76,
+			kVK_End = 0x77,
+			kVK_F2 = 0x78,
+			kVK_PageDown = 0x79,
+			kVK_F1 = 0x7A,
+			kVK_LeftArrow = 0x7B,
+			kVK_RightArrow = 0x7C,
+			kVK_DownArrow = 0x7D,
+			kVK_UpArrow = 0x7E,
+		}
+
+		[DllImport("/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics")]
+		[return: MarshalAs(UnmanagedType.U1)]
+		public static extern bool CGEventSourceKeyState(CGEventSourceStateID stateID, CGKeyCode key);
+	}
+}