Fix: Brightness and Volume Control

DynamicIsland.xcodeproj/project.pbxproj

@@ -10,6 +10,7 @@
 		7E25ECA12E6C6C3800700E72 /* CoreBrightness.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7E25ECA02E6C6C3800700E72 /* CoreBrightness.framework */; };
 		7E25ECA32E6C6E2600700E72 /* OSD.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7E25ECA22E6C6E2600700E72 /* OSD.framework */; };
 		7E25ECA52E6C6E7800700E72 /* DisplayServices.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7E25ECA42E6C6E7800700E72 /* DisplayServices.framework */; };
+		7E25ECB52E6C8BFB00700E72 /* MediaKeyTap in Frameworks */ = {isa = PBXBuildFile; productRef = 7E25ECB42E6C8BFB00700E72 /* MediaKeyTap */; };
 		7E6118142E24071E0050006C /* LaunchAtLogin in Frameworks */ = {isa = PBXBuildFile; productRef = 14D032192C68F32E0096E6A1 /* LaunchAtLogin */; };
 		7E6118152E24071E0050006C /* Sparkle in Frameworks */ = {isa = PBXBuildFile; productRef = 14D0321C2C68F3350096E6A1 /* Sparkle */; };
 		7E6118162E24071E0050006C /* KeyboardShortcuts in Frameworks */ = {isa = PBXBuildFile; productRef = B18654382C6F4990000B926A /* KeyboardShortcuts */; };
@@ -75,6 +76,7 @@
 				7E61181A2E24071E0050006C /* SwiftUIIntrospect in Frameworks */,
 				7E25ECA32E6C6E2600700E72 /* OSD.framework in Frameworks */,
 				7E25ECA52E6C6E7800700E72 /* DisplayServices.framework in Frameworks */,
+				7E25ECB52E6C8BFB00700E72 /* MediaKeyTap in Frameworks */,
 				7E6118192E24071E0050006C /* Defaults in Frameworks */,
 				7E6118182E24071E0050006C /* TheBoringWorkerNotifier in Frameworks */,
 				7E6118172E24071E0050006C /* Collections in Frameworks */,
@@ -157,6 +159,7 @@
 				B1628B912CC260C0003D8DF3 /* SwiftUIIntrospect */,
 				B194240A2CD10017003E5DC2 /* LottieUI */,
 				146BC4362D366E9B0047C66A /* MacroVisionKit */,
+				7E25ECB42E6C8BFB00700E72 /* MediaKeyTap */,
 			);
 			productName = DynamicIsland;
 			productReference = F54406E72CD4987A00C7AFD9 /* DynamicIsland.app */;
@@ -197,6 +200,7 @@
 				B1628B902CC260C0003D8DF3 /* XCRemoteSwiftPackageReference "swiftui-introspect" */,
 				B19424072CD0DB52003E5DC2 /* XCRemoteSwiftPackageReference "LottieUI" */,
 				146BC4352D366E9B0047C66A /* XCRemoteSwiftPackageReference "MacroVisionKit" */,
+				7E25ECB32E6C8BFB00700E72 /* XCRemoteSwiftPackageReference "MediaKeyTap" */,
 			);
 			preferredProjectObjectVersion = 77;
 			productRefGroup = F54406E82CD4987A00C7AFD9 /* Products */;
@@ -487,6 +491,14 @@
 				minimumVersion = 2.6.4;
 			};
 		};
+		7E25ECB32E6C8BFB00700E72 /* XCRemoteSwiftPackageReference "MediaKeyTap" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/nhurden/MediaKeyTap";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 2.3.0;
+			};
+		};
 		9A987A112C73CAA1005CA465 /* XCRemoteSwiftPackageReference "Pow" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/EmergeTools/Pow";
@@ -558,6 +570,11 @@
 			package = 14D0321B2C68F3350096E6A1 /* XCRemoteSwiftPackageReference "Sparkle" */;
 			productName = Sparkle;
 		};
+		7E25ECB42E6C8BFB00700E72 /* MediaKeyTap */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 7E25ECB32E6C8BFB00700E72 /* XCRemoteSwiftPackageReference "MediaKeyTap" */;
+			productName = MediaKeyTap;
+		};
 		9A987A0F2C73CA8D005CA465 /* Collections */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = F54407082CD4A23F00C7AFD9 /* XCRemoteSwiftPackageReference "swift-collections" */;

DynamicIsland.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -1,5 +1,5 @@
 {
-  "originHash" : "2741287b65cf0758abd89baadf314f5f8cbfcb46cb8d236a83f98731e5501ee3",
+  "originHash" : "424f1d62134dd1f9036d13269149d3ce62d9433217dddecb8fb77a10d8189a85",
   "pins" : [
     {
       "identity" : "defaults",
@@ -55,6 +55,15 @@
         "version" : "0.1.0"
       }
     },
+    {
+      "identity" : "mediakeytap",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/nhurden/MediaKeyTap",
+      "state" : {
+        "revision" : "7d1b8169d228ef6e5ec7db676a348f2f3e50c734",
+        "version" : "2.3.0"
+      }
+    },
     {
       "identity" : "pow",
       "kind" : "remoteSourceControl",

DynamicIsland/ContentView.swift

@@ -193,6 +193,16 @@ struct ContentView: View {
                         }
                     }
                 }
+                .onChange(of: coordinator.sneakPeek.show) { _, sneakPeekShowing in
+                    // When sneak peek finishes, check if user is still hovering and open notch if needed
+                    if !sneakPeekShowing {
+                        DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) {
+                            if isHovering && vm.notchState == .closed {
+                                doOpen()
+                            }
+                        }
+                    }
+                }
                 .sensoryFeedback(.alignment, trigger: haptics)
                 .contextMenu {
                     SettingsLink(label: {
@@ -507,15 +517,23 @@ struct ContentView: View {
                 haptics.toggle()
             }
             
-            // Don't open notch if there's a sneak peek showing
-            if coordinator.sneakPeek.show {
-                return
-            }
-            
             // Delay opening the notch
             let task = DispatchWorkItem {
                 // ContentView is a struct, so we don't use weak self here
                 guard vm.notchState == .closed, isHovering else { return }
+                
+                // Additional check: don't open if a sneak peek just started showing
+                // to avoid conflicts during system HUD display
+                if coordinator.sneakPeek.show {
+                    // Schedule a retry after the sneak peek should be gone (default duration + small buffer)
+                    DispatchQueue.main.asyncAfter(deadline: .now() + 1.8) {
+                        if isHovering && vm.notchState == .closed && !coordinator.sneakPeek.show {
+                            doOpen()
+                        }
+                    }
+                    return
+                }
+                
                 doOpen()
             }
             

DynamicIsland/DynamicIslandApp.swift

@@ -87,8 +87,21 @@ class AppDelegate: NSObject, NSApplicationDelegate {
     private var onboardingWindowController: NSWindowController?
     private var cancellables = Set<AnyCancellable>()
     
+    // Media key monitoring
+    private var globalEventMonitor: Any?
+    private var localEventMonitor: Any?
+    
     // Debouncing mechanism for window size updates
     private var windowSizeUpdateWorkItem: DispatchWorkItem?
+//    let calendarManager = CalendarManager.shared
+//    let webcamManager = WebcamManager.shared
+//    var closeNotchWorkItem: DispatchWorkItem?
+//    private var previousScreens: [NSScreen]?
+//    private var onboardingWindowController: NSWindowController?
+//    private var cancellables = Set<AnyCancellable>()
+//    
+//    // Debouncing mechanism for window size updates
+//    private var windowSizeUpdateWorkItem: DispatchWorkItem?
     
     private func debouncedUpdateWindowSize() {
         // Cancel any existing work item
@@ -108,10 +121,76 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         return false
     }
     
+    // MARK: - Media Key Monitoring
+    
+    private func setupMediaKeyMonitoring() {
+        // Monitor both global and local events to catch media keys
+        globalEventMonitor = NSEvent.addGlobalMonitorForEvents(matching: .systemDefined) { [weak self] event in
+            self?.handleSystemEvent(event)
+        }
+        
+        localEventMonitor = NSEvent.addLocalMonitorForEvents(matching: .systemDefined) { [weak self] event in
+            self?.handleSystemEvent(event)
+            return event
+        }
+        
+        print("🎹 Media key monitoring started using NSEvent")
+    }
+    
+    private func handleSystemEvent(_ event: NSEvent) {
+        guard event.subtype.rawValue == 8 else { return }
+        
+        let data1 = event.data1
+        let keyCode = Int32((data1 & 0xFFFF0000) >> 16)
+        let keyFlags = Int(data1 & 0x0000FFFF)
+        let keyState = ((keyFlags & 0xFF00) >> 8) == 0xA  // KeyDown
+        let keyRepeat = (keyFlags & 0x1) != 0
+
+        guard keyState && !keyRepeat else { return }  // Only handle key down, ignore repeats
+        
+        switch keyCode {
+        case NX_KEYTYPE_SOUND_UP, NX_KEYTYPE_SOUND_DOWN, NX_KEYTYPE_MUTE:
+            print("🔊 Volume key detected: \(keyCode)")
+            SystemHUDManager.shared.handleVolumeKeyEvent()
+        case NX_KEYTYPE_BRIGHTNESS_UP, NX_KEYTYPE_BRIGHTNESS_DOWN:
+            print("☀️ Brightness key detected: \(keyCode)")
+            SystemHUDManager.shared.handleBrightnessKeyEvent()
+        default:
+            break
+        }
+    }
+    
+    private func stopMediaKeyMonitoring() {
+        if let globalMonitor = globalEventMonitor {
+            NSEvent.removeMonitor(globalMonitor)
+            globalEventMonitor = nil
+        }
+        
+        if let localMonitor = localEventMonitor {
+            NSEvent.removeMonitor(localMonitor)
+            localEventMonitor = nil
+        }
+        
+        print("🎹 Media key monitoring stopped")
+    }
+    
+    // MARK: - MediaKeyApplicationDelegate (for future use)
+    
+    func didDetectVolumeKey() {
+        SystemHUDManager.shared.handleVolumeKeyEvent()
+    }
+    
+    func didDetectBrightnessKey() {
+        SystemHUDManager.shared.handleBrightnessKeyEvent()
+    }
+    
     func applicationWillTerminate(_ notification: Notification) {
         // Cancel any pending window size updates
         windowSizeUpdateWorkItem?.cancel()
         
+        // Stop media key monitoring
+        stopMediaKeyMonitoring()
+        
         print("🚪 Application terminating - ensuring system HUD is restored...")
         
         // Re-enable system HUD on app termination
@@ -302,6 +381,9 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         // Setup SystemHUD Manager
         SystemHUDManager.shared.setup(coordinator: coordinator)
         
+        // Setup media key monitoring
+        setupMediaKeyMonitoring()
+        
         // Observe tab changes - use debounced updates
         coordinator.$currentView.sink { [weak self] newView in
             self?.debouncedUpdateWindowSize()

DynamicIsland/DynamicIslandViewCoordinator.swift

@@ -49,7 +49,7 @@ struct ExpandedItem {
 
 class DynamicIslandViewCoordinator: ObservableObject {
     static let shared = DynamicIslandViewCoordinator()
-    var notifier: TheBoringWorkerNotifier = .init()
+    var notifier: TheBoringWorkerNotifier
     
     @Published var currentView: NotchViews = .home
     
@@ -97,8 +97,8 @@ class DynamicIslandViewCoordinator: ObservableObject {
     @Published var optionKeyPressed: Bool = true
     
     private init() {
-        selectedScreen = preferredScreen
         notifier = TheBoringWorkerNotifier()
+        selectedScreen = preferredScreen
     }
     
     func setupWorkersNotificationObservers() {
@@ -171,7 +171,8 @@ class DynamicIslandViewCoordinator: ObservableObject {
             guard let self = self, !Task.isCancelled else { return }
             await MainActor.run {
                 withAnimation {
-                    self.toggleSneakPeek(status: false, type: .music)
+                    // Hide the sneak peek with the correct type that was showing
+                    self.toggleSneakPeek(status: false, type: self.sneakPeek.type)
                     self.sneakPeekDuration = 1.5
                 }
             }

DynamicIsland/components/Settings/SettingsWindowController.swift

@@ -72,23 +72,30 @@ class SettingsWindowController: NSWindowController {
         
         // If window is already visible, bring it to front properly
         if window?.isVisible == true {
-            NSApp.activate(ignoringOtherApps: true)
+            forceWindowToFront()
-            window?.orderFrontRegardless()
-            window?.makeKeyAndOrderFront(nil)
             return
         }
         
         // Show the window with proper ordering
+        window?.center()
+        forceWindowToFront()
+    }
+    
+    private func forceWindowToFront() {
+        // Multi-step approach to ensure window gets focus
         window?.orderFrontRegardless()
         window?.makeKeyAndOrderFront(nil)
-        window?.center()
         
-        // Activate the app and ensure window gets focus
+        // Activate the app with maximum priority
         NSApp.activate(ignoringOtherApps: true)
         
-        // Force window to front after activation
+        // Double-check after a brief delay
-        DispatchQueue.main.async { [weak self] in
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) { [weak self] in
-            self?.window?.makeKeyAndOrderFront(nil)
+            guard let window = self?.window else { return }
+            if !window.isKeyWindow {
+                window.makeKeyAndOrderFront(nil)
+                NSApp.activate(ignoringOtherApps: true)
+            }
         }
     }
     

DynamicIsland/managers/DynamicIslandExtensionManager.swift

@@ -32,7 +32,10 @@ class DynamicIslandExtensionManager: ObservableObject {
     
     @Published var installedExtensions: [Extension] = [] {
         didSet {
-            print("Extensions installed: \(installedExtensions)")
+            // Only log when there's an actual change in content, not just initialization
+            if oldValue != installedExtensions {
+                print("📦 Extensions installed: \(installedExtensions.map { $0.name })")
+            }
         }
     }
     

DynamicIsland/managers/SystemChangesObserver.swift

@@ -11,82 +11,102 @@ import Foundation
 import Defaults
 
 class SystemChangesObserver {
-    private var oldVolume: Float
+    private var oldVolume: Float = 0
-    private var oldMuted: Bool
+    private var oldMuted: Bool = false
     private var oldBrightness: Float = 0
     
     private weak var coordinator: DynamicIslandViewCoordinator?
-    private var timer: Timer?
+    
+    // Backup timer for edge cases only
+    private var backupTimer: Timer?
 
     init(coordinator: DynamicIslandViewCoordinator) {
         self.coordinator = coordinator
+        
+        // Initialize baseline values only once
         oldVolume = SystemVolumeManager.getOutputVolume()
         oldMuted = SystemVolumeManager.isMuted()
-
+        
         do {
             oldBrightness = try SystemDisplayManager.getDisplayBrightness()
         } catch {
-            NSLog("Failed to retrieve display brightness: \(error)")
+            NSLog("Failed to retrieve initial display brightness: \(error)")
         }
     }
 
     func startObserving() {
         guard Defaults[.enableSystemHUD] else { return }
         
-        createObservers()
+        startMinimalBackupTimer()
-        createTimerForContinuousChangesCheck(with: 0.2)
-    }
-
-    private func createTimerForContinuousChangesCheck(with seconds: TimeInterval) {
-        timer = Timer(
-            timeInterval: seconds, target: self, selector: #selector(checkChanges), userInfo: nil,
-            repeats: true)
-        let mainLoop = RunLoop.main
-        mainLoop.add(timer!, forMode: .common)
-    }
-
-    private func createObservers() {
-        NotificationCenter.default.addObserver(
-            self,
-            selector: #selector(showVolumeHUD),
-            name: SystemKeyObserver.volumeChanged,
-            object: nil)
-        
-        NotificationCenter.default.addObserver(
-            self,
-            selector: #selector(showBrightnessHUD),
-            name: SystemKeyObserver.brightnessChanged,
-            object: nil)
-    }
-
-    @objc func showVolumeHUD() {
-        guard Defaults[.enableSystemHUD] && Defaults[.enableVolumeHUD] else { return }
-        
-        if oldVolume == 0.0 || oldVolume == 1.0 {
-            sendVolumeNotification(value: oldVolume)
-        }
-        print("Showing volume HUD")
     }
     
-    @objc func showBrightnessHUD() {
+    private func startMinimalBackupTimer() {
-        guard Defaults[.enableSystemHUD] && Defaults[.enableBrightnessHUD] else { return }
+        // More frequent backup check (every 300ms) for better responsiveness
-        
+        // This is a reasonable compromise between the original 200ms and the previous 5s
-        if oldBrightness == 0.0 || oldBrightness == 1.0 {
+        backupTimer = Timer.scheduledTimer(withTimeInterval: 0.3, repeats: true) { [weak self] _ in
-            sendBrightnessNotification(value: oldBrightness)
+            guard Defaults[.enableSystemHUD] else { return }
+            self?.performBackupCheck()
         }
-        print("Showing brightness HUD")
     }
-
+    
-    @objc func checkChanges() {
+    private func performBackupCheck() {
-        guard Defaults[.enableSystemHUD] else { return }
+        // Only check if we haven't had recent activity
-        
-        checkBrightnessChanges()
         checkVolumeChanges()
+        checkBrightnessChanges()
     }
-
+    
-    private func isAlmost(firstNumber: Float, secondNumber: Float) -> Bool {
+    // MARK: - Public Media Key Event Handlers (called from MediaKeyApplication)
-        let marginValue = 5 / 100.0
+    
-        return (firstNumber + Float(marginValue) >= secondNumber && firstNumber - Float(marginValue) <= secondNumber)
+    func handleVolumeKeyEvent() {
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.05) {
+            self.handleVolumeKeyPress()
+        }
+    }
+    
+    func handleBrightnessKeyEvent() {
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.05) {
+            self.handleBrightnessKeyPress()
+        }
+    }
+    
+    // MARK: - Key Press Event Handlers
+    
+    private func handleVolumeKeyPress() {
+        guard Defaults[.enableVolumeHUD] else { return }
+        
+        let newVolume = SystemVolumeManager.getOutputVolume()
+        let newMuted = SystemVolumeManager.isMuted()
+        
+        // Always show HUD for key press feedback, even if value doesn't change
+        print("🔊 Volume key pressed - showing HUD: volume=\(newVolume), muted=\(newMuted)")
+        
+        if newMuted {
+            sendVolumeNotification(value: 0.0)
+        } else {
+            sendVolumeNotification(value: newVolume)
+        }
+        
+        // Update stored values
+        oldVolume = newVolume
+        oldMuted = newMuted
+    }
+    
+    private func handleBrightnessKeyPress() {
+        guard Defaults[.enableBrightnessHUD] else { return }
+        guard NSScreen.screens.count > 0 else { return }
+        
+        do {
+            let newBrightness = try SystemDisplayManager.getDisplayBrightness()
+            
+            // Always show HUD for key press feedback, even if value doesn't change
+            print("☀️ Brightness key pressed - showing HUD: brightness=\(newBrightness)")
+            sendBrightnessNotification(value: newBrightness)
+            
+            // Update stored value
+            oldBrightness = newBrightness
+        } catch {
+            // Silently ignore brightness errors to reduce log spam
+        }
     }
 
     private func checkVolumeChanges() {
@@ -95,7 +115,12 @@ class SystemChangesObserver {
         let newVolume = SystemVolumeManager.getOutputVolume()
         let newMuted = SystemVolumeManager.isMuted()
         
-        if !isAlmost(firstNumber: oldVolume, secondNumber: newVolume) || newMuted != oldMuted {
+        let volumeChanged = !isAlmost(firstNumber: oldVolume, secondNumber: newVolume)
+        let muteChanged = newMuted != oldMuted
+        
+        if volumeChanged || muteChanged {
+            print("🔊 Volume change detected: \(oldVolume) → \(newVolume), muted: \(oldMuted) → \(newMuted)")
+            
             if newMuted {
                 sendVolumeNotification(value: 0.0)
             } else {
@@ -108,22 +133,30 @@ class SystemChangesObserver {
 
     private func checkBrightnessChanges() {
         guard Defaults[.enableBrightnessHUD] else { return }
-        
+        guard NSScreen.screens.count > 0 else { return }
-        if NSScreen.screens.count == 0 {
-            return
-        }
         
         do {
             let newBrightness = try SystemDisplayManager.getDisplayBrightness()
-            if !isAlmost(firstNumber: oldBrightness, secondNumber: newBrightness) {
+            let brightnessChanged = !isAlmost(firstNumber: oldBrightness, secondNumber: newBrightness)
+            
+            if brightnessChanged {
+                print("☀️ Brightness change detected: \(oldBrightness) → \(newBrightness)")
                 sendBrightnessNotification(value: newBrightness)
                 oldBrightness = newBrightness
             }
         } catch {
-            NSLog("Failed to retrieve display brightness: \(error)")
+            // Silently ignore brightness errors to reduce log spam
         }
     }
     
+    private func isAlmost(firstNumber: Float, secondNumber: Float) -> Bool {
+        // Convert sensitivity setting to a more responsive threshold
+        // Sensitivity 1-10 scale maps to 0.01-0.10 threshold range
+        let marginValue = Float(Defaults[.systemHUDSensitivity]) / 100.0
+        let threshold = max(0.01, marginValue) // Minimum threshold for responsiveness
+        return abs(firstNumber - secondNumber) <= threshold
+    }
+    
     // MARK: - Internal Notification Methods
     
     private func sendVolumeNotification(value: Float) {
@@ -149,8 +182,12 @@ class SystemChangesObserver {
     }
     
     func stopObserving() {
-        timer?.invalidate()
+        // Clean up backup timer
-        timer = nil
+        backupTimer?.invalidate()
-        NotificationCenter.default.removeObserver(self)
+        backupTimer = nil
+        
+        print("🎹 Media key detection stopped")
     }
-}
+}
+
+

DynamicIsland/managers/SystemHUDManager.swift

@@ -14,6 +14,8 @@ class SystemHUDManager {
     
     private var changesObserver: SystemChangesObserver?
     private weak var coordinator: DynamicIslandViewCoordinator?
+    private var isSetupComplete = false
+    private var isSystemOperationInProgress = false
     
     private init() {
         // Set up observer for settings changes
@@ -23,11 +25,14 @@ class SystemHUDManager {
     private func setupSettingsObserver() {
         // Use Defaults publisher instead of @Default property wrapper
         Defaults.publisher(.enableSystemHUD, options: []).sink { [weak self] change in
+            guard let self = self, self.isSetupComplete else {
+                return
+            }
             Task { @MainActor in
                 if change.newValue {
-                    await self?.startSystemHUD()
+                    await self.startSystemHUD()
                 } else {
-                    await self?.stopSystemHUD()
+                    await self.stopSystemHUD()
                 }
             }
         }.store(in: &cancellables)
@@ -35,34 +40,46 @@ class SystemHUDManager {
     
     private var cancellables = Set<AnyCancellable>()
     
+    /// Public property to check if system operations are in progress
+    var isOperationInProgress: Bool {
+        return isSystemOperationInProgress
+    }
+    
     func setup(coordinator: DynamicIslandViewCoordinator) {
         self.coordinator = coordinator
         
         if Defaults[.enableSystemHUD] {
             Task { @MainActor in
                 await startSystemHUD()
+                self.isSetupComplete = true
             }
+        } else {
+            isSetupComplete = true
         }
     }
     
     @MainActor
     private func startSystemHUD() async {
-        guard let coordinator = coordinator else { return }
+        guard let coordinator = coordinator, !isSystemOperationInProgress else { return }
         
+        isSystemOperationInProgress = true
         await stopSystemHUD() // Stop any existing observer
         
         changesObserver = SystemChangesObserver(coordinator: coordinator)
         changesObserver?.startObserving()
         
         // Disable system HUD if possible
-        // Note: This would require additional implementation similar to OSDUIManager
         disableSystemHUD()
         
         print("System HUD replacement started")
+        isSystemOperationInProgress = false
     }
     
     @MainActor
     private func stopSystemHUD() async {
+        guard !isSystemOperationInProgress else { return }
+        
+        isSystemOperationInProgress = true
         changesObserver?.stopObserving()
         changesObserver = nil
         
@@ -70,6 +87,7 @@ class SystemHUDManager {
         enableOriginalSystemHUD()
         
         print("System HUD replacement stopped")
+        isSystemOperationInProgress = false
     }
     
     private func disableSystemHUD() {
@@ -83,21 +101,32 @@ class SystemHUDManager {
         // Re-enable the system HUD using SystemOSDManager
         SystemOSDManager.enableSystemHUD()
         
-        // Verify it's working after a short delay
+        // Check status after a reasonable delay, using async to avoid blocking
-        DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
+        Task {
-            let isRunning = SystemOSDManager.isOSDUIHelperRunning()
+            try await Task.sleep(nanoseconds: 2_000_000_000) // 2 seconds instead of 1
+            let isRunning = await SystemOSDManager.isOSDUIHelperRunningAsync()
             print("🔍 OSDUIHelper status after re-enable: \(isRunning ? "✅ Running" : "❌ Not running")")
         }
     }
     
+    // MARK: - Media Key Event Handling
+    
+    /// Handle volume key press events from MediaKeyApplication
+    public func handleVolumeKeyEvent() {
+        changesObserver?.handleVolumeKeyEvent()
+    }
+    
+    /// Handle brightness key press events from MediaKeyApplication
+    public func handleBrightnessKeyEvent() {
+        changesObserver?.handleBrightnessKeyEvent()
+    }
+    
     deinit {
-        print("🧹 SystemHUDManager deinitializing - ensuring system HUD is restored")
         cancellables.removeAll()
         Task { @MainActor in
             await stopSystemHUD()
         }
-        // Also call the emergency restore as backup
+        // Emergency restore is available via SystemHUDManager.emergencyRestoreSystemHUD() if needed
-        SystemHUDDebugger.forceRestartOSDUIHelper()
     }
     
     /// Emergency restore function - call this if system HUD is not working

DynamicIsland/managers/SystemKeyObserver.swift

@@ -5,6 +5,10 @@
 //  Adapted from TheBoringWorker-HUD KeyPressObserver.swift
 //  Created by GitHub Copilot on 06/09/25.
 //
+//  ⚠️ DEPRECATED: This class is non-functional as it extends NSApplication
+//  but is never used as the main app class. Event monitoring has been moved
+//  to SystemChangesObserver using NSEvent.addGlobalMonitorForEvents.
+//
 
 import Cocoa
 

DynamicIsland/managers/SystemOSDManager.swift

@@ -13,6 +13,12 @@ class SystemOSDManager {
 
     /// Re-enables the system HUD by restarting OSDUIHelper
     public static func enableSystemHUD() {
+        Task.detached(priority: .background) {
+            await enableSystemHUDAsync()
+        }
+    }
+    
+    private static func enableSystemHUDAsync() async {
         do {
             // First, stop any existing OSDUIHelper process
             let stopTask = Process()
@@ -22,7 +28,7 @@ class SystemOSDManager {
             stopTask.waitUntilExit()
             
             // Small delay to ensure process is fully stopped
-            usleep(200000) // 200ms
+            try await Task.sleep(nanoseconds: 200_000_000) // 200ms
             
             // Then kickstart it again to ensure it's running properly
             let kickstart = Process()
@@ -32,11 +38,15 @@ class SystemOSDManager {
             kickstart.waitUntilExit()
             
             // Additional delay to ensure service is fully started
-            usleep(300000) // 300ms
+            try await Task.sleep(nanoseconds: 300_000_000) // 300ms
             
-            print("✅ System HUD re-enabled")
+            await MainActor.run {
+                print("✅ System HUD re-enabled")
+            }
         } catch {
-            NSLog("❌ Error while trying to re-enable OSDUIHelper: \(error)")
+            await MainActor.run {
+                NSLog("❌ Error while trying to re-enable OSDUIHelper: \(error)")
+            }
             
             // Fallback: Try to restart the service using launchctl load
             do {
@@ -45,15 +55,26 @@ class SystemOSDManager {
                 fallbackTask.arguments = ["load", "-w", "/System/Library/LaunchAgents/com.apple.OSDUIHelper.plist"]
                 try fallbackTask.run()
                 fallbackTask.waitUntilExit()
-                print("✅ System HUD re-enabled via fallback method")
+                
+                await MainActor.run {
+                    print("✅ System HUD re-enabled via fallback method")
+                }
             } catch {
-                NSLog("❌ Fallback method also failed: \(error)")
+                await MainActor.run {
+                    NSLog("❌ Fallback method also failed: \(error)")
+                }
             }
         }
     }
 
     /// Disables the system HUD by stopping OSDUIHelper
     public static func disableSystemHUD() {
+        Task.detached(priority: .background) {
+            await disableSystemHUDAsync()
+        }
+    }
+    
+    private static func disableSystemHUDAsync() async {
         do {
             let kickstart = Process()
             kickstart.executableURL = URL(fileURLWithPath: "/bin/launchctl")
@@ -61,7 +82,8 @@ class SystemOSDManager {
             kickstart.arguments = ["kickstart", "gui/\(getuid())/com.apple.OSDUIHelper"]
             try kickstart.run()
             kickstart.waitUntilExit()
-            usleep(500000) // Make sure it started
+            
+            try await Task.sleep(nanoseconds: 500_000_000) // 500ms - async wait instead of usleep
             
             let task = Process()
             task.executableURL = URL(fileURLWithPath: "/usr/bin/killall")
@@ -69,9 +91,13 @@ class SystemOSDManager {
             try task.run()
             task.waitUntilExit()
             
-            print("✅ System HUD disabled")
+            await MainActor.run {
+                print("✅ System HUD disabled")
+            }
         } catch {
-            NSLog("❌ Error while trying to hide OSDUIHelper: \(error)")
+            await MainActor.run {
+                NSLog("❌ Error while trying to hide OSDUIHelper: \(error)")
+            }
         }
     }
     
@@ -96,4 +122,14 @@ class SystemOSDManager {
             return false
         }
     }
+    
+    /// Async version of status checking to avoid main thread blocking
+    public static func isOSDUIHelperRunningAsync() async -> Bool {
+        return await withCheckedContinuation { continuation in
+            Task.detached(priority: .background) {
+                let result = isOSDUIHelperRunning()
+                continuation.resume(returning: result)
+            }
+        }
+    }
 }