Add the Globe key check

CHANGELOG.md

@@ -2,6 +2,15 @@
 Change Log
 ==========================
 
+4.7.0 (unreleased)
+--------------------------
+
+### Improvements
+
+- [rc] Display the Globe symbol instead of “fn” for shortcuts in the Quick Action bar if the user keyboard is supposed to have the Globe key (thanks to Katsumi Kishikawa!).
+
+
+
 4.7.0-rc (615)
 --------------------------
 

CotEditor/Sources/Shortcut.swift

@@ -26,6 +26,7 @@
 
 import Foundation
 import AppKit.NSEvent
+import IOKit
 
 /// Modifier keys for keyboard shortcut.
 ///
@@ -41,10 +42,6 @@ private enum ModifierKey: CaseIterable {
     static let validCases: [Self] = Array(Self.allCases[0..<4])
     
     
-    /// It seems there is no easy way to detect the Globe key without private APIs... (2023-12 on macOS 14)
-    private static let supportsGlobeKey = false
-    
-    
     /// NSEvent.ModifierFlags representation.
     var mask: NSEvent.ModifierFlags {
         
@@ -95,6 +92,18 @@ private enum ModifierKey: CaseIterable {
             case .function: preconditionFailure("Fn/Globe key cannot be used for custom shortcuts.")
         }
     }
+    
+    
+    /// Return `true` if the user keyboard is supposed to have the Globe key.
+    private static let supportsGlobeKey = {
+        
+        let entry = IOServiceGetMatchingService(kIOMainPortDefault, IOServiceMatching("AppleHIDKeyboardEventDriverV2"))
+        defer { IOObjectRelease(entry) }
+        
+        guard let property = IORegistryEntryCreateCFProperty(entry, "SupportsGlobeKey" as CFString, kCFAllocatorDefault, 0)?.takeRetainedValue() else { return false }
+        
+        return (property as? Int) == 1
+    }()
 }