fix(macos): sync restored fullscreen chrome

macos/Runner/MainFlutterWindow.swift

@@ -31,14 +31,14 @@ class MainFlutterWindow: NSWindow {
     WindowUtilsPlugin.register(
       with: flutterViewController.registrar(forPlugin: "WindowUtilsPlugin"))
     WindowUtilsPlugin.setWindow(self)
-
-    // Set custom traffic light positions using centralized values from plugin
-    WindowUtilsPlugin.setInitialTrafficLightPositions()
+    WindowUtilsPlugin.installWindowDelegate()
+    WindowUtilsPlugin.syncWindowChrome()
 
     RegisterGeneratedPlugins(registry: flutterViewController)
 
     // Enable window position/size persistence
     self.setFrameAutosaveName("com.edde746.plezy.MainWindow")
+    WindowUtilsPlugin.syncWindowChrome()
 
     super.awakeFromNib()
   }

macos/Runner/WindowDelegate.swift

@@ -20,6 +20,36 @@ class WindowDelegate: NSObject, NSWindowDelegate {
     channel?.invokeMethod(method, arguments: nil)
   }
 
+  func syncWindowChrome() {
+    guard let window = window else { return }
+    if window.styleMask.contains(.fullScreen) {
+      applyFullScreenChrome(to: window)
+    } else {
+      applyWindowedChrome(to: window)
+    }
+  }
+
+  private func applyFullScreenChrome(to window: NSWindow) {
+    window.toolbar = nil
+    window.titleVisibility = .visible
+    window.titlebarAppearsTransparent = false
+    WindowUtilsPlugin.setTrafficLightsVisible(true, window: window)
+    WindowUtilsPlugin.setTrafficLightPositions(custom: false, window: window)
+  }
+
+  private func applyWindowedChrome(to window: NSWindow) {
+    window.titleVisibility = .hidden
+    window.titlebarAppearsTransparent = true
+    window.styleMask.insert(.fullSizeContentView)
+
+    if window.toolbar == nil, let flutterVC = window.contentViewController {
+      window.toolbar = ForwardingToolbar(flutterViewController: flutterVC)
+    }
+
+    WindowUtilsPlugin.setTrafficLightsVisible(true, window: window)
+    WindowUtilsPlugin.setTrafficLightPositions(custom: true, window: window)
+  }
+
   // MARK: - NSWindowDelegate
 
   func window(
@@ -31,13 +61,7 @@ class WindowDelegate: NSObject, NSWindowDelegate {
 
   func windowWillEnterFullScreen(_ notification: Notification) {
     guard let window = window else { return }
-    // Remove toolbar before entering fullscreen
-    window.toolbar = nil
-    // Show title and make titlebar opaque for native fullscreen look
-    window.titleVisibility = .visible
-    window.titlebarAppearsTransparent = false
-    // Reset traffic light positions to default
-    WindowUtilsPlugin.setTrafficLightPositions(custom: false, window: window)
+    applyFullScreenChrome(to: window)
     // Notify Dart for state management only
     emit("windowWillEnterFullScreen")
   }
@@ -56,13 +80,7 @@ class WindowDelegate: NSObject, NSWindowDelegate {
 
   func windowDidExitFullScreen(_ notification: Notification) {
     guard let window = window else { return }
-    // Restore toolbar
-    if let flutterVC = window.contentViewController {
-      let toolbar = ForwardingToolbar(flutterViewController: flutterVC)
-      window.toolbar = toolbar
-    }
-    // Restore custom traffic light positions
-    WindowUtilsPlugin.setTrafficLightPositions(custom: true, window: window)
+    applyWindowedChrome(to: window)
     emit("windowDidExitFullScreen")
   }
 }

macos/Runner/WindowUtilsPlugin.swift

@@ -88,12 +88,17 @@ class WindowUtilsPlugin: NSObject, FlutterPlugin {
 
   static func setWindow(_ window: NSWindow) {
     instance?.window = window
+    instance?.windowDelegate?.window = window
   }
 
-  /// Apply custom traffic light positions. Called by MainFlutterWindow on startup.
-  static func setInitialTrafficLightPositions() {
+  static func installWindowDelegate() {
     guard let instance = instance, let window = instance.window else { return }
-    instance.applyTrafficLightPositions(custom: true, window: window)
+    instance.installWindowDelegate(window: window)
+  }
+
+  static func syncWindowChrome() {
+    guard let instance = instance else { return }
+    instance.syncWindowChrome()
   }
 
   /// Apply traffic light positions. Called by WindowDelegate during fullscreen transitions.
@@ -102,6 +107,12 @@ class WindowUtilsPlugin: NSObject, FlutterPlugin {
     instance.applyTrafficLightPositions(custom: custom, window: window)
   }
 
+  static func setTrafficLightsVisible(_ visible: Bool, window: NSWindow) {
+    for buttonType in [NSWindow.ButtonType.closeButton, .miniaturizeButton, .zoomButton] {
+      window.standardWindowButton(buttonType)?.isHidden = !visible
+    }
+  }
+
   private func applyTrafficLightPositions(custom: Bool, window: NSWindow) {
     if custom {
       for (buttonType, offset) in WindowUtilsPlugin.customButtonPositions {
@@ -130,9 +141,11 @@ class WindowUtilsPlugin: NSObject, FlutterPlugin {
     case "setTrafficLightsVisible":
       let args = call.arguments as? [String: Any]
       let visible = args?["visible"] as? Bool ?? true
-      for buttonType in [NSWindow.ButtonType.closeButton, .miniaturizeButton, .zoomButton] {
-        window.standardWindowButton(buttonType)?.isHidden = !visible
-      }
+      WindowUtilsPlugin.setTrafficLightsVisible(visible, window: window)
+      result(nil)
+
+    case "syncWindowChrome":
+      syncWindowChrome()
       result(nil)
 
     case "enterFullscreen":
@@ -159,12 +172,30 @@ class WindowUtilsPlugin: NSObject, FlutterPlugin {
     self.window = window
 
     if enableWindowDelegate {
-      let delegate = WindowDelegate()
-      delegate.channel = channel
-      delegate.window = window
-      windowDelegate = delegate
-      window.delegate = delegate
+      installWindowDelegate(window: window)
     }
+
+    windowDelegate?.syncWindowChrome()
+  }
+
+  private func installWindowDelegate(window: NSWindow) {
+    let delegate = windowDelegate ?? WindowDelegate()
+    delegate.channel = channel
+    delegate.window = window
+    windowDelegate = delegate
+    window.delegate = delegate
+  }
+
+  private func syncWindowChrome() {
+    guard let window = window else { return }
+    if windowDelegate == nil {
+      installWindowDelegate(window: window)
+    } else {
+      windowDelegate?.channel = channel
+      windowDelegate?.window = window
+      window.delegate = windowDelegate
+    }
+    windowDelegate?.syncWindowChrome()
   }
 
   private func withButton(