Use Fluent localization for key names.

Resources/Locale/en-US/input.ftl

@@ -0,0 +1,54 @@
+input-key-Escape = Escape
+input-key-Control = Control
+input-key-Shift = Shift
+input-key-Alt = Alt
+input-key-Menu = Menu
+input-key-F1 = F1
+input-key-F2 = F2
+input-key-F3 = F3
+input-key-F4 = F4
+input-key-F5 = F5
+input-key-F6 = F6
+input-key-F7 = F7
+input-key-F8 = F8
+input-key-F9 = F9
+input-key-F10 = F10
+input-key-F11 = F11
+input-key-F12 = F12
+input-key-F13 = F13
+input-key-F14 = F14
+input-key-F15 = F15
+input-key-Pause = Pause
+input-key-Left = Left
+input-key-Up = Up
+input-key-Down = Down
+input-key-Right = Right
+input-key-Space = Space
+input-key-Return = Return
+input-key-NumpadEnter = Num Enter
+input-key-BackSpace = Backspace
+input-key-Tab = Tab
+input-key-PageUp = Page Up
+input-key-PageDown = Page Down
+input-key-End = End
+input-key-Home = Home
+input-key-Insert = Insert
+input-key-Delete = Delete
+input-key-MouseLeft = Mouse Left
+input-key-MouseRight = Mouse Right
+input-key-MouseMiddle = Mouse Middle
+input-key-MouseButton4 = Mouse 4
+input-key-MouseButton5 = Mouse 5
+input-key-MouseButton6 = Mouse 6
+input-key-MouseButton7 = Mouse 7
+input-key-MouseButton8 = Mouse 8
+input-key-MouseButton9 = Mouse 9
+
+input-key-LSystem-win = Left Win
+input-key-RSystem-win = Right Win
+input-key-LSystem-mac = Left Cmd
+input-key-RSystem-mac = Right Cmd
+input-key-LSystem-linux = Left Meta
+input-key-RSystem-linux = Right Meta
+
+input-key-unknown = <unknown key>

Robust.Client/Graphics/Clyde/Windowing/Glfw.Keys.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Runtime.InteropServices;
+using System.Threading;
 using OpenToolkit.GraphicsLibraryFramework;
 using Robust.Client.Input;
 using Robust.Shared.Localization;
@@ -47,17 +48,18 @@ namespace Robust.Client.Graphics.Clyde
 
             public string KeyGetName(Keyboard.Key key)
             {
-                var name = Keyboard.GetSpecialKeyName(key);
+                if (_printableKeyNameMap.TryGetValue(key, out var name))
+                {
+                    var textInfo = Thread.CurrentThread.CurrentCulture.TextInfo;
+                    return textInfo.ToTitleCase(name);
+                }
+
+                name = Keyboard.GetSpecialKeyName(key, _loc);
                 if (name != null)
                 {
                     return Loc.GetString(name);
                 }
 
-                if (_printableKeyNameMap.TryGetValue(key, out name))
-                {
-                    return name;
-                }
-
                 return Loc.GetString("<unknown key>");
             }
 

Robust.Client/Graphics/Clyde/Windowing/Glfw.cs

@@ -4,6 +4,7 @@ using OpenToolkit.GraphicsLibraryFramework;
 using Robust.Shared;
 using Robust.Shared.Configuration;
 using Robust.Shared.IoC;
+using Robust.Shared.Localization;
 using Robust.Shared.Log;
 
 namespace Robust.Client.Graphics.Clyde
@@ -14,6 +15,7 @@ namespace Robust.Client.Graphics.Clyde
         {
             [Dependency] private readonly ILogManager _logManager = default!;
             [Dependency] private readonly IConfigurationManager _cfg = default!;
+            [Dependency] private readonly ILocalizationManager _loc = default!;
 
             private readonly Clyde _clyde;
 

Robust.Client/Input/InputDevices.cs

@@ -1,5 +1,7 @@
 using System.Collections.Generic;
 using System.Runtime.InteropServices;
+using Robust.Shared.Localization;
+using Robust.Shared.Map;
 
 namespace Robust.Client.Input
 {
@@ -172,86 +174,23 @@ namespace Robust.Client.Input
         ///     Gets a "nice" version of special unprintable keys such as <see cref="Key.Escape"/>.
         /// </summary>
         /// <returns><see langword="null"/> if there is no nice version of this special key.</returns>
-        internal static string? GetSpecialKeyName(Key key)
+        internal static string? GetSpecialKeyName(Key key, ILocalizationManager loc)
         {
-            if (_keyNiceNameMap.TryGetValue(key, out var val))
+            var locId = $"input-key-{key}";
+            if (key == Key.LSystem || key == Key.RSystem)
             {
-                return val;
+                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+                    locId += "-win";
+                else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+                    locId += "-mac";
+                else
+                    locId += "-linux";
             }
 
-            return null;
-        }
+            if (loc.TryGetString(locId, out var name))
+                return name;
 
-        private static readonly Dictionary<Key, string> _keyNiceNameMap;
-
-        static Keyboard()
-        {
-
-            _keyNiceNameMap = new Dictionary<Key, string>
-            {
-                {Key.Escape, "Escape"},
-                {Key.Control, "Control"},
-                {Key.Shift, "Shift"},
-                {Key.Alt, "Alt"},
-                {Key.Menu, "Menu"},
-                {Key.F1, "F1"},
-                {Key.F2, "F2"},
-                {Key.F3, "F3"},
-                {Key.F4, "F4"},
-                {Key.F5, "F5"},
-                {Key.F6, "F6"},
-                {Key.F7, "F7"},
-                {Key.F8, "F8"},
-                {Key.F9, "F9"},
-                {Key.F10, "F10"},
-                {Key.F11, "F11"},
-                {Key.F12, "F12"},
-                {Key.F13, "F13"},
-                {Key.F14, "F14"},
-                {Key.F15, "F15"},
-                {Key.Pause, "Pause"},
-                {Key.Left, "Left"},
-                {Key.Up, "Up"},
-                {Key.Down, "Down"},
-                {Key.Right, "Right"},
-                {Key.Space, "Space"},
-                {Key.Return, "Return"},
-                {Key.NumpadEnter, "Num Enter"},
-                {Key.BackSpace, "Backspace"},
-                {Key.Tab, "Tab"},
-                {Key.PageUp, "Page Up"},
-                {Key.PageDown, "Page Down"},
-                {Key.End, "End"},
-                {Key.Home, "Home"},
-                {Key.Insert, "Insert"},
-                {Key.Delete, "Delete"},
-                {Key.MouseLeft, "Mouse Left"},
-                {Key.MouseRight, "Mouse Right"},
-                {Key.MouseMiddle, "Mouse Middle"},
-                {Key.MouseButton4, "Mouse 4"},
-                {Key.MouseButton5, "Mouse 5"},
-                {Key.MouseButton6, "Mouse 6"},
-                {Key.MouseButton7, "Mouse 7"},
-                {Key.MouseButton8, "Mouse 8"},
-                {Key.MouseButton9, "Mouse 9"},
-            };
-
-            // Have to adjust system key name depending on platform.
-            if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
-            {
-                _keyNiceNameMap.Add(Key.LSystem, "Left Cmd");
-                _keyNiceNameMap.Add(Key.RSystem, "Right Cmd");
-            }
-            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
-            {
-                _keyNiceNameMap.Add(Key.LSystem, "Left Win");
-                _keyNiceNameMap.Add(Key.RSystem, "Right Win");
-            }
-            else
-            {
-                _keyNiceNameMap.Add(Key.LSystem, "Left Meta");
-                _keyNiceNameMap.Add(Key.RSystem, "Right Meta");
-            }
+            return loc.GetString("input-key-unknown");
         }
     }
 }