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 document: MapDocument
   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   private let groupRegex = MapParsingPatterns.group
  16
  17   private let changeDebouncer: Debouncer = Debouncer(seconds: 1)
  18
  19   init(document: Binding<MapDocument>, onChange: @escaping () -> Void) {
  20     self._document = document
  21     self.onChange = onChange
  22     super.init(nibName: nil, bundle: nil)
  23   }
  24
  25   required init?(coder: NSCoder) {
  26     fatalError("init(coder:) has not been implemented")
  27   }
  28
  29   override func loadView() {
  30     let scrollView = NSTextView.scrollableTextView()
  31     let textView = scrollView.documentView as! NSTextView
  32
  33     scrollView.translatesAutoresizingMaskIntoConstraints = false
  34
  35     textView.backgroundColor = .ui.background
  36     textView.allowsUndo = true
  37     textView.delegate = self
  38     textView.textStorage?.delegate = self
  39     textView.string = self.document.text
  40     textView.isEditable = true
  41     textView.font = .monospacedSystemFont(ofSize: 16.0, weight: .regular)
  42     self.view = scrollView
  43   }
  44
  45   override func viewDidAppear() {
  46     self.view.window?.makeFirstResponder(self.view)
  47   }
  48 }
  49
  50 extension MapTextEditorController: NSTextViewDelegate {
  51
  52   func textDidChange(_ obj: Notification) {
  53     if let textField = obj.object as? NSTextView {
  54       self.document.text = textField.string
  55
  56       changeDebouncer.debounce {
  57         DispatchQueue.main.async {
  58           self.onChange()
  59         }
  60       }
  61     }
  62   }
  63
  64   func textView(_ view: NSTextView, shouldChangeTextIn: NSRange, replacementString: String?) -> Bool
  65   {
  66     let range = Range(shouldChangeTextIn, in: view.string)
  67     let target = view.string[range!]
  68
  69     if target == "--" {
  70       return false
  71     }
  72
  73     return true
  74   }
  75 }
  76
  77 extension MapTextEditorController: NSTextStorageDelegate {
  78
  79   override func textStorageDidProcessEditing(_ obj: Notification) {
  80     if let textStorage = obj.object as? NSTextStorage {
  81       self.colorizeText(textStorage: textStorage)
  82     }
  83   }
  84
  85   private func colorizeText(textStorage: NSTextStorage) {
  86     let range = NSMakeRange(0, textStorage.length)
  87     var matches = vertexRegex.matches(in: textStorage.string, options: [], range: range)
  88
  89     for match in matches {
  90       textStorage.addAttributes(
  91         [.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 1))
  92       textStorage.addAttributes(
  93         [.foregroundColor: NSColor.syntax.number], range: match.range(at: 2))
  94       textStorage.addAttributes(
  95         [.foregroundColor: NSColor.syntax.number], range: match.range(at: 3))
  96       textStorage.addAttributes(
  97         [.foregroundColor: NSColor.syntax.option], range: match.range(at: 4))
  98     }
  99
 100     matches = edgeRegex.matches(in: textStorage.string, options: [], range: range)
 101
 102     for match in matches {
 103       textStorage.addAttributes(
 104         [.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 1))
 105       let arrowRange = match.range(at: 2)
 106       textStorage.addAttributes(
 107         [.foregroundColor: NSColor.syntax.symbol],
 108         range: NSMakeRange(arrowRange.lowerBound - 1, arrowRange.length + 1))
 109       textStorage.addAttributes(
 110         [.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 3))
 111     }
 112
 113     matches = opportunityRegex.matches(in: textStorage.string, options: [], range: range)
 114
 115     for match in matches {
 116       textStorage.addAttributes(
 117         [.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 118       textStorage.addAttributes(
 119         [.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 2))
 120       textStorage.addAttributes(
 121         [.foregroundColor: NSColor.syntax.symbol], range: match.range(at: 3))
 122       textStorage.addAttributes(
 123         [.foregroundColor: NSColor.syntax.number], range: match.range(at: 4))
 124     }
 125
 126     matches = blockerRegex.matches(in: textStorage.string, options: [], range: range)
 127
 128     for match in matches {
 129       textStorage.addAttributes(
 130         [.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 131       textStorage.addAttributes(
 132         [.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 2))
 133     }
 134
 135     matches = noteRegex.matches(in: textStorage.string, options: [], range: range)
 136
 137     for match in matches {
 138       textStorage.addAttributes(
 139         [.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 140       textStorage.addAttributes(
 141         [.foregroundColor: NSColor.syntax.number], range: match.range(at: 2))
 142       textStorage.addAttributes(
 143         [.foregroundColor: NSColor.syntax.number], range: match.range(at: 3))
 144     }
 145
 146     matches = stageRegex.matches(in: textStorage.string, options: [], range: range)
 147
 148     for match in matches {
 149       textStorage.addAttributes(
 150         [.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 151       textStorage.addAttributes(
 152         [.foregroundColor: NSColor.syntax.number], range: match.range(at: 2))
 153     }
 154
 155     matches = groupRegex.matches(in: textStorage.string, options: [], range: range)
 156
 157     for match in matches {
 158       textStorage.addAttributes(
 159         [.foregroundColor: NSColor.syntax.option], range: match.range(at: 1))
 160       textStorage.addAttributes(
 161         [.foregroundColor: NSColor.syntax.vertex], range: match.range(at: 2))
 162     }
 163   }
 164 }
 165
 166 struct MapTextEditor: NSViewControllerRepresentable {
 167
 168   @Binding var document: MapDocument
 169   var onChange: () -> Void = {}
 170
 171   func makeNSViewController(
 172     context: NSViewControllerRepresentableContext<MapTextEditor>
 173   ) -> MapTextEditorController {
 174     return MapTextEditorController(document: $document, onChange: onChange)
 175   }
 176
 177   func updateNSViewController(
 178     _ nsViewController: MapTextEditorController,
 179     context: NSViewControllerRepresentableContext<MapTextEditor>
 180   ) {}
 181 }