Working lock screen widget

DynamicIsland/managers/LockScreenPanelManager.swift

@@ -0,0 +1,103 @@
+//
+//  LockScreenPanelManager.swift
+//  DynamicIsland
+//
+//  Manages the lock screen music panel window.
+//
+
+import SwiftUI
+import AppKit
+import SkyLightWindow
+import Defaults
+
+@MainActor
+class LockScreenPanelManager {
+    static let shared = LockScreenPanelManager()
+
+    private var panelWindow: NSWindow?
+    private var hasDelegated = false
+
+    private init() {
+        print("[\(timestamp())] LockScreenPanelManager: initialized")
+    }
+
+    private func timestamp() -> String {
+        let formatter = DateFormatter()
+        formatter.dateFormat = "HH:mm:ss.SSS"
+        return formatter.string(from: Date())
+    }
+
+    func showPanel() {
+        print("[\(timestamp())] LockScreenPanelManager: showPanel")
+
+        guard Defaults[.enableLockScreenMediaWidget] else {
+            print("[\(timestamp())] LockScreenPanelManager: widget disabled")
+            hidePanel()
+            return
+        }
+
+        guard let screen = NSScreen.main else {
+            print("[\(timestamp())] LockScreenPanelManager: no main screen available")
+            return
+        }
+
+        let panelWidth: CGFloat = 420
+        let panelHeight: CGFloat = 150
+        let screenFrame = screen.frame
+        let originX = screenFrame.origin.x + (screenFrame.width / 2) - (panelWidth / 2)
+        let originY = screenFrame.origin.y + (screenFrame.height / 2) - panelHeight - 40
+        let targetFrame = NSRect(x: originX, y: originY, width: panelWidth, height: panelHeight)
+
+        let window: NSWindow
+
+        if let existingWindow = panelWindow {
+            window = existingWindow
+        } else {
+            let newWindow = NSWindow(
+                contentRect: targetFrame,
+                styleMask: [.borderless, .nonactivatingPanel],
+                backing: .buffered,
+                defer: false
+            )
+
+            newWindow.isReleasedWhenClosed = false
+            newWindow.isOpaque = false
+            newWindow.backgroundColor = .clear
+            newWindow.level = NSWindow.Level(rawValue: Int(CGShieldingWindowLevel()))
+            newWindow.collectionBehavior = [.canJoinAllSpaces, .stationary, .fullScreenAuxiliary]
+            newWindow.isMovable = false
+            newWindow.hasShadow = false
+
+            panelWindow = newWindow
+            window = newWindow
+            hasDelegated = false
+        }
+
+        window.setFrame(targetFrame, display: true)
+        window.contentView = NSHostingView(rootView: LockScreenMusicPanel())
+
+        if !hasDelegated {
+            SkyLightOperator.shared.delegateWindow(window)
+            hasDelegated = true
+        }
+
+        // Keep the window alive and simply order it out on unlock to avoid SkyLight crashes.
+        window.orderFrontRegardless()
+
+        print("[\(timestamp())] LockScreenPanelManager: panel visible")
+    }
+
+    func hidePanel() {
+        print("[\(timestamp())] LockScreenPanelManager: hidePanel")
+
+        guard let window = panelWindow else {
+            print("LockScreenPanelManager: no panel to hide")
+            return
+        }
+
+        window.orderOut(nil)
+        window.contentView = nil
+
+        print("[\(timestamp())] LockScreenPanelManager: panel hidden")
+    }
+}