Hide insertion point in shortcut key field

CHANGELOG.md

@@ -8,8 +8,9 @@ unreleased
 ### Improvements
 
 - Display an open dialog on launch if so set even when iCloud storage is disabled.
-- Improve stability on text encoding change
+- Improve stability on text encoding change.
 - Refine dialog messages on text encoding change.
+- [trivial] Hide insertion point in shortcut input fields in Key Binding pane.
 
 
 ### Fixes

CotEditor/Sources/ShortcutKeyField.swift

@@ -44,6 +44,9 @@ final class ShortcutKeyField: NSTextField {
         
         guard super.becomeFirstResponder() else { return false }
         
+        // hide insertion point
+        (self.currentEditor() as? NSTextView)?.insertionPointColor = .textBackgroundColor
+        
         self.keyDownMonitor = NSEvent.addLocalMonitorForEvents(matching: .keyDown, handler: { [weak self] (event: NSEvent) -> NSEvent? in
             
             guard
@@ -90,6 +93,9 @@ final class ShortcutKeyField: NSTextField {
     /// end editing
     override func textDidEndEditing(_ notification: Notification) {
         
+        // restore insertion point
+        (self.currentEditor() as? NSTextView)?.insertionPointColor = .controlTextColor
+        
         // end monitoring key down event
         if let monitor = self.keyDownMonitor {
             NSEvent.removeMonitor(monitor)