git.r.bdr.sh - rbdr/map/blob - Map/Presentation/Base Components/MapTextEditor.swift

   1 import Cocoa
   2 import SwiftUI
   3
   4 class MapTextEditorController: NSViewController {
   5
   6   @Binding var text: String
   7   let onChange: () -> Void
   8
   9   private let vertexRegex = MapParsingPatterns.vertex
  10   private let edgeRegex = MapParsingPatterns.edge
  11   private let blockerRegex = MapParsingPatterns.blocker
  12   private let opportunityRegex = MapParsingPatterns.opportunity
  13   private let noteRegex = MapParsingPatterns.note
  14   private let stageRegex = MapParsingPatterns.stage
  15
  16   private let changeDebouncer: Debouncer = Debouncer(seconds: 1)
  17
  18     init(text: Binding<String>, onChange: @escaping () -> Void) {
  19     self._text = text
  20     self.onChange = onChange
  21     super.init(nibName: nil, bundle: nil)
  22   }
  23
  24   required init?(coder: NSCoder) {
  25     fatalError("init(coder:) has not been implemented")
  26   }
  27
  28   override func loadView() {
  29     let scrollView = NSTextView.scrollableTextView()
  30     let textView = scrollView.documentView as! NSTextView
  31
  32     scrollView.translatesAutoresizingMaskIntoConstraints = false
  33
  34     textView.allowsUndo = true
  35     textView.delegate = self
  36     textView.textStorage?.delegate = self
  37     textView.string = self.text
  38     textView.isEditable = true
  39     textView.font = .monospacedSystemFont(ofSize: 16.0, weight: .regular)
  40     self.view = scrollView
  41   }
  42
  43   override func viewDidAppear() {
  44     self.view.window?.makeFirstResponder(self.view)
  45   }
  46 }
  47
  48 extension MapTextEditorController: NSTextViewDelegate {
  49
  50   func textDidChange(_ obj: Notification) {
  51     if let textField = obj.object as? NSTextView {
  52       self.text = textField.string
  53
  54
  55         changeDebouncer.debounce {
  56           DispatchQueue.main.async {
  57             self.onChange()
  58           }
  59         }
  60     }
  61   }
  62
  63   func textView(_ view: NSTextView, shouldChangeTextIn: NSRange, replacementString: String?) -> Bool
  64   {
  65     let range = Range(shouldChangeTextIn, in: view.string)
  66     let target = view.string[range!]
  67
  68     if target == "--" {
  69       return false
  70     }
  71
  72     return true
  73   }
  74 }
  75
  76 extension MapTextEditorController: NSTextStorageDelegate {
  77
  78   override func textStorageDidProcessEditing(_ obj: Notification) {
  79     if let textStorage = obj.object as? NSTextStorage {
  80       self.colorizeText(textStorage: textStorage)
  81     }
  82   }
  83
  84   private func colorizeText(textStorage: NSTextStorage) {
  85     let range = NSMakeRange(0, textStorage.length)
  86     var matches = vertexRegex.matches(in: textStorage.string, options: [], range: range)
  87
  88     for match in matches {
  89       textStorage.addAttributes([.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 1))
  90       textStorage.addAttributes([.foregroundColor: NSColor.syntax.number], range: match.range(at: 2))
  91       textStorage.addAttributes([.foregroundColor: NSColor.syntax.number], range: match.range(at: 3))
  92       textStorage.addAttributes([.foregroundColor: NSColor.syntax.option], range: match.range(at: 4))
  93     }
  94
  95     matches = edgeRegex.matches(in: textStorage.string, options: [], range: range)
  96
  97     for match in matches {
  98       textStorage.addAttributes([.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 1))
  99       let arrowRange = match.range(at: 2)
 100       textStorage.addAttributes(
 101         [.foregroundColor: NSColor.syntax.symbol],
 102         range: NSMakeRange(arrowRange.lowerBound - 1, arrowRange.length + 1))
 103       textStorage.addAttributes([.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 3))
 104     }
 105
 106     matches = opportunityRegex.matches(in: textStorage.string, options: [], range: range)
 107
 108     for match in matches {
 109       textStorage.addAttributes([.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 110       textStorage.addAttributes([.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 2))
 111       textStorage.addAttributes([.foregroundColor: NSColor.syntax.symbol], range: match.range(at: 3))
 112       textStorage.addAttributes([.foregroundColor: NSColor.syntax.number], range: match.range(at: 4))
 113     }
 114
 115     matches = blockerRegex.matches(in: textStorage.string, options: [], range: range)
 116
 117     for match in matches {
 118       textStorage.addAttributes([.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 119       textStorage.addAttributes([.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 2))
 120     }
 121
 122     matches = noteRegex.matches(in: textStorage.string, options: [], range: range)
 123
 124     for match in matches {
 125       textStorage.addAttributes([.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 126       textStorage.addAttributes([.foregroundColor: NSColor.syntax.number], range: match.range(at: 2))
 127       textStorage.addAttributes([.foregroundColor: NSColor.syntax.number], range: match.range(at: 3))
 128     }
 129
 130     matches = stageRegex.matches(in: textStorage.string, options: [], range: range)
 131
 132     for match in matches {
 133       textStorage.addAttributes([.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 134       textStorage.addAttributes([.foregroundColor: NSColor.syntax.number], range: match.range(at: 2))
 135     }
 136   }
 137 }
 138
 139 struct MapTextEditor: NSViewControllerRepresentable {
 140
 141   @Binding var text: String
 142   var onChange: () -> Void = {}
 143
 144   func makeNSViewController(
 145     context: NSViewControllerRepresentableContext<MapTextEditor>
 146   ) -> MapTextEditorController {
 147     return MapTextEditorController(text: $text, onChange: onChange)
 148   }
 149
 150   func updateNSViewController(
 151     _ nsViewController: MapTextEditorController,
 152     context: NSViewControllerRepresentableContext<MapTextEditor>
 153   ) {}
 154 }