Change NSTextField text color when in edit mode - appkit

Question

Using NSTextField I'd like to change the text color from black to white when going into edit mode.
Right now, it:
Defaults to black when not selected (GOOD)
Defaults to white when selected (GOOD)
Changes color to black when editing starts (NOT GOOD), would like for it to be white.
I know I could set the textColor property to .white but that would also set the color to white when the row is not selected (see point 1.), which I don't want. Huge thanks in advance!
Code I'm using now for reference, note is part of a NSViewRepresentable struct.
func makeNSView(context:Context) -> NSTextField{
let osTextView = NSTextField(string: inputText)
osTextView.maximumNumberOfLines = 1
osTextView.isBordered = false
osTextView.delegate = context.coordinator
osTextView.drawsBackground = true
osTextView.backgroundColor = .none
//osTextView.textColor = .white
return osTextView
}
I've tried adding the following and it almost gets the job done, however it only triggers when edit begins as opposed to when NSTextField becomes editable.
func control(_ control: NSControl, textShouldBeginEditing fieldEditor: NSText) -> Bool {
fieldEditor.textColor = .white
return true
}

Answer 1

So the way I managed to solve it is by subclassing NSTextField and overriding becomeFirstResponder. As that only triggers when the field goes into edit mode I can set there the color to white.
import AppKit
final class NSTextFieldFirstResponderAware: NSTextField{
override func becomeFirstResponder() -> Bool {
self.textColor = .white
return super.becomeFirstResponder()
}
}
Once the user finishes I reset the color at
func controlTextDidEndEditing(_ obj: Notification) {
guard let textField = obj.object as? NSTextField else {
return
}
textField.textColor = nil
}
You may wonder why I don't reset it at resignsFirstResponder, the reason is this (TLDR -> would not work).
And here is the end result: