git.r.bdr.sh - rbdr/map/blob - Map/Views/MapTextEditor.swift

   1 import Cocoa
   2 import SwiftUI
   3
   4 class MapTextEditorController: NSViewController {
   5
   6   @Binding var text: String
   7
   8   init(text: Binding<String>) {
   9     self._text = text
  10     super.init(nibName: nil, bundle: nil)
  11   }
  12
  13   required init?(coder: NSCoder) {
  14     fatalError("init(coder:) has not been implemented")
  15   }
  16
  17   override func loadView() {
  18     let scrollView = NSTextView.scrollableTextView()
  19     let textView = scrollView.documentView as! NSTextView
  20
  21     scrollView.translatesAutoresizingMaskIntoConstraints = false
  22
  23     textView.delegate = self
  24     textView.string = self.text
  25     textView.isEditable = true
  26     textView.font = .monospacedSystemFont(ofSize: 16.0, weight: .regular)
  27     self.view = scrollView
  28   }
  29
  30   override func viewDidAppear() {
  31     self.view.window?.makeFirstResponder(self.view)
  32   }
  33 }
  34
  35 extension MapTextEditorController: NSTextViewDelegate {
  36
  37   func textDidChange(_ obj: Notification) {
  38     if let textField = obj.object as? NSTextView {
  39       self.text = textField.string
  40     }
  41   }
  42
  43   func textView(_ view: NSTextView, shouldChangeTextIn: NSRange, replacementString: String?) -> Bool
  44   {
  45     let range = Range(shouldChangeTextIn, in: view.string)
  46     let target = view.string[range!]
  47
  48     if target == "--" {
  49       return false
  50     }
  51
  52     return true
  53   }
  54 }
  55
  56 struct MapTextEditor: NSViewControllerRepresentable {
  57
  58   @Binding var text: String
  59
  60   func makeNSViewController(
  61     context: NSViewControllerRepresentableContext<MapTextEditor>
  62   ) -> MapTextEditorController {
  63     return MapTextEditorController(text: $text)
  64   }
  65
  66   func updateNSViewController(
  67     _ nsViewController: MapTextEditorController,
  68     context: NSViewControllerRepresentableContext<MapTextEditor>
  69   ) {
  70   }
  71 }