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import Cocoa
import SwiftUI
class MapTextEditorController: NSViewController {
@Binding var text: String
init(text: Binding<String>) {
self._text = text
super.init(nibName: nil, bundle: nil)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func loadView() {
let scrollView = NSTextView.scrollableTextView()
let textView = scrollView.documentView as! NSTextView
scrollView.translatesAutoresizingMaskIntoConstraints = false
textView.delegate = self
textView.string = self.text
textView.isEditable = true
textView.font = .monospacedSystemFont(ofSize: 16.0, weight: .regular)
self.view = scrollView
}
override func viewDidAppear() {
self.view.window?.makeFirstResponder(self.view)
}
}
extension MapTextEditorController: NSTextViewDelegate {
func textDidChange(_ obj: Notification) {
if let textField = obj.object as? NSTextView {
self.text = textField.string
}
}
func textView(_ view: NSTextView, shouldChangeTextIn: NSRange, replacementString: String?) -> Bool
{
let range = Range(shouldChangeTextIn, in: view.string)
let target = view.string[range!]
if target == "--" {
return false
}
return true
}
}
struct MapTextEditor: NSViewControllerRepresentable {
@Binding var text: String
func makeNSViewController(
context: NSViewControllerRepresentableContext<MapTextEditor>
) -> MapTextEditorController {
return MapTextEditorController(text: $text)
}
func updateNSViewController(
_ nsViewController: MapTextEditorController,
context: NSViewControllerRepresentableContext<MapTextEditor>
) {
}
}
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