Add toolbar for JSON editor

MacLibrary/CodeEditTextView.swift

@@ -4,6 +4,36 @@ import CodeEditSourceEditor
 import CodeEditTextView
 import SwiftUI
 
+@MainActor
+public final class CodeEditEditorController: ObservableObject {
+    weak var controller: TextViewController?
+
+    @Published public var canUndo = false
+    @Published public var canRedo = false
+
+    public init() {}
+
+    public func undo() {
+        controller?.textView.undoManager?.undo()
+        updateUndoState()
+    }
+
+    public func redo() {
+        controller?.textView.undoManager?.redo()
+        updateUndoState()
+    }
+
+    public func insertSymbol(_ symbol: String) {
+        guard let textView = controller?.textView else { return }
+        textView.insertText(symbol, replacementRange: textView.selectedRange())
+    }
+
+    func updateUndoState() {
+        canUndo = controller?.textView.undoManager?.canUndo ?? false
+        canRedo = controller?.textView.undoManager?.canRedo ?? false
+    }
+}
+
 private extension NSColor {
     var forEditor: NSColor {
         usingColorSpace(.sRGB) ?? self
@@ -53,6 +83,13 @@ private func makeConfiguration(isEditable: Bool) -> SourceEditorConfiguration {
 struct CodeEditTextView: NSViewRepresentable {
     @Binding var text: String
     let isEditable: Bool
+    let editorController: CodeEditEditorController?
+
+    init(text: Binding<String>, isEditable: Bool, editorController: CodeEditEditorController? = nil) {
+        _text = text
+        self.isEditable = isEditable
+        self.editorController = editorController
+    }
 
     func makeNSView(context: Context) -> NSView {
         let controller = TextViewController(
@@ -79,6 +116,11 @@ struct CodeEditTextView: NSViewRepresentable {
 
         context.coordinator.controller = controller
         context.coordinator.setupObservation()
+        editorController?.controller = controller
+        Task { @MainActor in
+            editorController?.updateUndoState()
+        }
+
         return containerView
     }
 
@@ -90,19 +132,22 @@ struct CodeEditTextView: NSViewRepresentable {
         if controller.configuration.behavior.isEditable != isEditable {
             controller.configuration = makeConfiguration(isEditable: isEditable)
         }
+        editorController?.controller = controller
     }
 
     func makeCoordinator() -> Coordinator {
-        Coordinator(text: $text)
+        Coordinator(text: $text, editorController: editorController)
     }
 
     class Coordinator: NSObject {
         var controller: TextViewController?
         @Binding var text: String
         private var observation: NSObjectProtocol?
+        private weak var editorController: CodeEditEditorController?
 
-        init(text: Binding<String>) {
+        init(text: Binding<String>, editorController: CodeEditEditorController?) {
             _text = text
+            self.editorController = editorController
             super.init()
         }
 
@@ -115,6 +160,9 @@ struct CodeEditTextView: NSViewRepresentable {
             ) { [weak self] _ in
                 guard let self, let controller = self.controller else { return }
                 self.text = controller.text
+                Task { @MainActor in
+                    self.editorController?.updateUndoState()
+                }
             }
         }
 

MacLibrary/MacApplication.swift

@@ -8,7 +8,7 @@ public struct MacApplication: Scene {
     @StateObject private var environments = ExtensionEnvironments()
 
     private let profileEditor: (Binding<String>, Bool) -> AnyView = { text, isEditable in
-        AnyView(CodeEditTextView(text: text, isEditable: isEditable))
+        AnyView(ProfileEditorWrapperView(text: text, isEditable: isEditable))
     }
 
     public init() {}

MacLibrary/MainView.swift

@@ -13,7 +13,7 @@ public struct MainView: View {
     @State private var pendingSettingsPage: SettingsPage?
 
     private let profileEditor: (Binding<String>, Bool) -> AnyView = { text, isEditable in
-        AnyView(CodeEditTextView(text: text, isEditable: isEditable))
+        AnyView(ProfileEditorWrapperView(text: text, isEditable: isEditable))
     }
 
     public init() {}

MacLibrary/ProfileEditorWrapperView.swift

@@ -0,0 +1,72 @@
+import ApplicationLibrary
+import Libbox
+import SwiftUI
+
+struct ProfileEditorWrapperView: View {
+    @Binding var text: String
+    let isEditable: Bool
+
+    @StateObject private var controller = CodeEditEditorController()
+    @State private var configurationError: String?
+    @State private var validationTask: Task<Void, Never>?
+
+    var body: some View {
+        VStack(spacing: 0) {
+            CodeEditTextView(text: $text, isEditable: isEditable, editorController: controller)
+
+            if isEditable {
+                EditorToolbarView(
+                    canUndo: controller.canUndo,
+                    canRedo: controller.canRedo,
+                    onUndo: { controller.undo() },
+                    onRedo: { controller.redo() },
+                    onFormat: { formatConfiguration() },
+                    onInsertSymbol: { controller.insertSymbol($0) },
+                    configurationError: configurationError,
+                    onDismissError: { configurationError = nil }
+                )
+            }
+        }
+        .onChangeCompat(of: text) {
+            if isEditable {
+                scheduleValidation()
+            }
+        }
+    }
+
+    private func scheduleValidation() {
+        configurationError = nil
+        validationTask?.cancel()
+        validationTask = Task {
+            try? await Task.sleep(nanoseconds: 2 * NSEC_PER_SEC)
+            guard !Task.isCancelled else { return }
+            await checkConfiguration()
+        }
+    }
+
+    private func checkConfiguration() async {
+        let content = text
+        if content.isEmpty { return }
+        var error: NSError?
+        LibboxCheckConfig(content, &error)
+        if let error {
+            configurationError = error.localizedDescription
+        } else {
+            configurationError = nil
+        }
+    }
+
+    private func formatConfiguration() {
+        let content = text
+        if content.isEmpty { return }
+        var error: NSError?
+        let result = LibboxFormatConfig(content, &error)
+        if let error {
+            configurationError = error.localizedDescription
+            return
+        }
+        if let formatted = result?.value, formatted != content {
+            text = formatted
+        }
+    }
+}