PiP improvements

Shared/Player/PlayerLayerView.swift

@@ -1,23 +1,51 @@
 import AVFoundation
 import Foundation
-import UIKit
+#if os(macOS)
+    import AppKit
+#else
+    import UIKit
+#endif
 
-final class PlayerLayerView: UIView {
-    var playerLayer = AVPlayerLayer()
+#if os(macOS)
+    final class PlayerLayerView: NSView {
+        var player: PlayerModel! { didSet {
+            wantsLayer = true
+        }}
 
-    override init(frame: CGRect) {
-        super.init(frame: frame)
+        override init(frame frameRect: NSRect) {
+            super.init(frame: frameRect)
+        }
 
-        layer.addSublayer(playerLayer)
+        override func makeBackingLayer() -> CALayer {
+            player.avPlayerBackend.playerLayer
+        }
+
+        required init?(coder: NSCoder) {
+            super.init(coder: coder)
+        }
     }
+#else
+    final class PlayerLayerView: UIView {
+        var player: PlayerModel!
 
-    @available(*, unavailable)
-    required init?(coder _: NSCoder) {
-        fatalError("init(coder:) has not been implemented")
-    }
+        override init(frame: CGRect) {
+            super.init(frame: frame)
+        }
 
-    override func layoutSubviews() {
-        super.layoutSubviews()
-        playerLayer.frame = bounds
+        private var layerAdded = false
+
+        @available(*, unavailable)
+        required init?(coder _: NSCoder) {
+            fatalError("init(coder:) has not been implemented")
+        }
+
+        override func layoutSubviews() {
+            if !layerAdded {
+                layerAdded = true
+                layer.addSublayer(player.avPlayerBackend.playerLayer)
+            }
+            player.avPlayerBackend.playerLayer.frame = bounds
+            super.layoutSubviews()
+        }
     }
-}
+#endif