1 files changed, 119 insertions, 0 deletions
diff --git a/Hotline/Library/TextView.swift b/Hotline/Library/TextView.swift
new file mode 100644
index 0000000..47746e2
--- /dev/null
+++ b/Hotline/Library/TextView.swift
@@ -0,0 +1,119 @@
+import SwiftUI
+
+struct BetterTextEditor: NSViewRepresentable {
+  
+  @Environment(\.lineSpacing) private var lineSpacing
+  
+  @Binding private var text: String
+  
+  private var customizations: [(NSTextView) -> Void] = []
+  
+  init(text: Binding<String>) {
+    self._text = text
+  }
+  
+  func makeCoordinator() -> Coordinator {
+    Coordinator(self)
+  }
+  
+  func makeNSView(context: Context) -> NSScrollView {
+    let scrollview = NSTextView.scrollablePlainDocumentContentTextView()
+    let textview = scrollview.documentView as! NSTextView
+    
+    textview.string = self.text
+    textview.delegate = context.coordinator
+    
+//    let p = NSMutableParagraphStyle()
+//    p.lineSpacing = self.lineSpacing
+////    textview.defaultParagraphStyle = p
+//    textview.typingAttributes = [
+//      .paragraphStyle: p
+//    ]
+    
+    textview.isEditable = true
+    textview.isRichText = false
+    textview.allowsUndo = true
+    textview.isFieldEditor = false
+    textview.usesAdaptiveColorMappingForDarkAppearance = true
+    textview.drawsBackground = false // true
+    textview.usesRuler = false
+    textview.usesFindBar = false
+    textview.isIncrementalSearchingEnabled = false
+    textview.isAutomaticQuoteSubstitutionEnabled = false
+    textview.isAutomaticDashSubstitutionEnabled = false
+    textview.isAutomaticSpellingCorrectionEnabled = true
+    textview.isAutomaticDataDetectionEnabled = false
+    textview.isAutomaticLinkDetectionEnabled = false
+    textview.usesInspectorBar = false
+    textview.usesFontPanel = false
+    textview.importsGraphics = false
+    textview.allowsImageEditing = false
+    textview.displaysLinkToolTips = true
+    textview.backgroundColor = NSColor.textBackgroundColor
+    textview.textContainerInset = NSSize(width: 16, height: 16)
+    textview.isContinuousSpellCheckingEnabled = true
+    textview.setSelectedRange(NSMakeRange(0, 0))
+    self.customizations.forEach { $0(textview) }
+    
+    scrollview.scrollerStyle = .overlay
+    
+    return scrollview
+  }
+  
+  func updateNSView(_ nsView: NSScrollView, context: Context) {
+    let textview = nsView.documentView as! NSTextView
+        
+    if textview.string != text {
+      textview.string = text
+    }
+    
+    self.customizations.forEach { $0(textview) }
+  }
+  
+  func betterEditorFont(_ font: NSFont) -> Self {
+    self.customized { $0.font = font }
+  }
+  
+  func betterEditorParagraphStyle(_ paragraphStyle: NSParagraphStyle) -> Self {
+    self.customized { $0.defaultParagraphStyle = paragraphStyle }
+  }
+    
+  func betterEditorAutomaticDashSubstitution(_ enabled: Bool) -> Self {
+    self.customized { $0.isAutomaticDashSubstitutionEnabled = enabled }
+  }
+  
+  func betterEditorAutomaticQuoteSubstitution(_ enabled: Bool) -> Self {
+    self.customized { $0.isAutomaticQuoteSubstitutionEnabled = enabled }
+  }
+  
+  func betterEditorAutomaticSpellingCorrection(_ enabled: Bool) -> Self {
+    self.customized { $0.isAutomaticSpellingCorrectionEnabled = enabled }
+  }
+  
+  func betterEditorTextInset(_ size: NSSize) -> Self {
+    self.customized { $0.textContainerInset = size }
+  }
+  
+  class Coordinator: NSObject, NSTextViewDelegate {
+    var parent: BetterTextEditor
+    
+    init(_ parent: BetterTextEditor) {
+      self.parent = parent
+    }
+    
+    func textDidChange(_ notification: Notification) {
+      guard let textview = notification.object as? NSTextView else {
+        return
+      }
+      self.parent.text = textview.string
+    }
+  }
+}
+
+private extension BetterTextEditor {
+  private func customized(_ customization: @escaping (NSTextView) -> Void) -> Self {
+    var copy = self
+    copy.customizations.append(customization)
+    return copy
+  }
+}