fix: いい感じ変換を esc キーでキャンセルできるようにする

azooKeyMac/InputController/azooKeyMacInputController+SelectedTextTransform.swift

@@ -163,6 +163,12 @@ extension azooKeyMacInputController {
             },
             completion: { [weak self] prompt in
                 self?.segmentsManager.appendDebugMessage("showPromptInputWindow: Window closed with prompt: \(prompt ?? "nil")")
+
+                // Restore focus on cancel (prompt == nil) here so every closing path including window-level Esc ends up restoring focus.
+                if prompt == nil, let app = currentApp {
+                    app.activate(options: [])
+                    self?.segmentsManager.appendDebugMessage("showPromptInputWindow: Restored focus to original app on cancel")
+                }
                 self?.isPromptWindowVisible = false
             }
         )

azooKeyMac/Windows/PromptInput/CustomTextField.swift

@@ -9,6 +9,7 @@ struct CustomTextField: NSViewRepresentable {
     var onSubmit: () -> Void
     var onDownArrow: () -> Void
     var onUpArrow: () -> Void
+    var onCancel: () -> Void
 
     func makeNSView(context: Context) -> NSTextField {
         let textField = KeyHandlingTextField()
@@ -28,6 +29,7 @@ struct CustomTextField: NSViewRepresentable {
         textField.onDownArrow = onDownArrow
         textField.onUpArrow = onUpArrow
         textField.onSubmit = onSubmit
+        textField.onCancel = onCancel
 
         return textField
     }
@@ -40,6 +42,7 @@ struct CustomTextField: NSViewRepresentable {
             keyTextField.onDownArrow = onDownArrow
             keyTextField.onUpArrow = onUpArrow
             keyTextField.onSubmit = onSubmit
+            keyTextField.onCancel = onCancel
         }
 
         // Handle focus changes
@@ -65,6 +68,14 @@ struct CustomTextField: NSViewRepresentable {
             parent.onSubmit()
         }
 
+        func control(_ control: NSControl, textView: NSTextView, doCommandBy commandSelector: Selector) -> Bool {
+            if commandSelector == #selector(NSResponder.cancelOperation(_:)) {
+                parent.onCancel()
+                return true
+            }
+            return false
+        }
+
         func controlTextDidChange(_ obj: Notification) {
             if let textField = obj.object as? NSTextField {
                 parent.text = textField.stringValue
@@ -85,6 +96,7 @@ private final class KeyHandlingTextField: NSTextField {
     var onDownArrow: (() -> Void)?
     var onUpArrow: (() -> Void)?
     var onSubmit: (() -> Void)?
+    var onCancel: (() -> Void)?
 
     override func awakeFromNib() {
         super.awakeFromNib()
@@ -121,6 +133,9 @@ private final class KeyHandlingTextField: NSTextField {
         case 36: // Return key
             onSubmit?()
             return
+        case 53: // Escape key
+            onCancel?()
+            return
         default:
             super.keyDown(with: event)
         }

azooKeyMac/Windows/PromptInput/PromptInputView.swift

@@ -116,6 +116,9 @@ struct PromptInputView: View {
                 onUpArrow: {
                     // Handle up arrow for history navigation
                     navigateHistory(direction: .up)
+                },
+                onCancel: {
+                    onCancel()
                 }
             )
             .onChange(of: isTextFieldFocused) { isFocused in

azooKeyMac/Windows/PromptInput/PromptInputWindow.swift

@@ -166,13 +166,6 @@ final class PromptInputWindow: NSWindow {
             completion(nil)
         }
 
-        // Restore focus to the previous application
-        DispatchQueue.main.async {
-            if let previousApp = NSWorkspace.shared.frontmostApplication {
-                previousApp.activate(options: [])
-            }
-        }
-
         super.close()
         self.completion = nil
         self.previewCallback = nil