Add basic PiP support

Model/PlayerState.swift

@@ -23,6 +23,8 @@ final class PlayerState: ObservableObject {
     let maxResolution: Stream.Resolution?
     var timeObserver: Any?
 
+    var playingOutsideViewController = false
+
     init(_ video: Video? = nil, maxResolution: Stream.Resolution? = nil) {
         self.video = video
         self.maxResolution = maxResolution
@@ -222,6 +224,11 @@ final class PlayerState: ObservableObject {
     fileprivate func destroyPlayer() {
         logger.critical("destroying player")
 
+        guard !playingOutsideViewController else {
+            logger.critical("cannot destroy, playing outside view controller")
+            return
+        }
+
         player?.currentItem?.tracks.forEach { $0.assetTrack?.asset?.cancelLoading() }
 
         player?.replaceCurrentItem(with: nil)

Pearvidious.xcodeproj/project.pbxproj

@@ -232,6 +232,7 @@
 		37977582268922F600DD52A8 /* InvidiousAPI.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InvidiousAPI.swift; sourceTree = "<group>"; };
 		3797758A2689345500DD52A8 /* Store.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Store.swift; sourceTree = "<group>"; };
 		379775922689365600DD52A8 /* Array+Next.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Array+Next.swift"; sourceTree = "<group>"; };
+		37992DC726CC50BC003D4C27 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		37AAF27D26737323007FC770 /* PopularView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PopularView.swift; sourceTree = "<group>"; };
 		37AAF27F26737550007FC770 /* SearchView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SearchView.swift; sourceTree = "<group>"; };
 		37AAF2892673AB89007FC770 /* ChannelView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChannelView.swift; sourceTree = "<group>"; };
@@ -356,6 +357,14 @@
 			name = Frameworks;
 			sourceTree = "<group>";
 		};
+		37992DC826CC50CD003D4C27 /* iOS */ = {
+			isa = PBXGroup;
+			children = (
+				37992DC726CC50BC003D4C27 /* Info.plist */,
+			);
+			path = iOS;
+			sourceTree = "<group>";
+		};
 		37BE0BD826A214500092E2DB /* macOS */ = {
 			isa = PBXGroup;
 			children = (
@@ -378,6 +387,7 @@
 		37D4B0BC2671614700C925CA = {
 			isa = PBXGroup;
 			children = (
+				37992DC826CC50CD003D4C27 /* iOS */,
 				37BE0BD826A214500092E2DB /* macOS */,
 				37D4B159267164AE00C925CA /* tvOS */,
 				37D4B0C12671614700C925CA /* Shared */,
@@ -1082,6 +1092,7 @@
 				DEVELOPMENT_TEAM = 78Z5H3M6RJ;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = iOS/Info.plist;
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
@@ -1112,6 +1123,7 @@
 				DEVELOPMENT_TEAM = 78Z5H3M6RJ;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = iOS/Info.plist;
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;

Shared/PlayerViewController.swift

@@ -6,8 +6,6 @@ final class PlayerViewController: UIViewController {
     var video: Video!
 
     var playerLoaded = false
-    var playingFullScreen = false
-
     var player = AVPlayer()
     var playerState: PlayerState! = PlayerState()
     var playerViewController = AVPlayerViewController()
@@ -15,19 +13,19 @@ final class PlayerViewController: UIViewController {
     override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
 
-        if !playerLoaded {
         loadPlayer()
-        }
 
-        try? AVAudioSession.sharedInstance().setCategory(.playback, mode: .default)
+        try? AVAudioSession.sharedInstance().setCategory(.playback, mode: .moviePlayback)
         try? AVAudioSession.sharedInstance().setActive(true)
     }
 
     override func viewDidDisappear(_ animated: Bool) {
         #if os(iOS)
-            if !playingFullScreen {
+            if !playerState.playingOutsideViewController {
                 playerViewController.player?.replaceCurrentItem(with: nil)
                 playerViewController.player = nil
+
+                try? AVAudioSession.sharedInstance().setActive(false)
             }
         #endif
 
@@ -35,6 +33,10 @@ final class PlayerViewController: UIViewController {
     }
 
     func loadPlayer() {
+        guard !playerLoaded else {
+            return
+        }
+
         playerState.player = player
         playerViewController.player = playerState.player
         playerState.loadVideo(video)
@@ -42,6 +44,16 @@ final class PlayerViewController: UIViewController {
         #if os(tvOS)
             present(playerViewController, animated: false)
         #else
+            embedViewController()
+        #endif
+
+        playerViewController.allowsPictureInPicturePlayback = true
+        playerViewController.delegate = self
+        playerLoaded = true
+    }
+
+    #if !os(tvOS)
+        func embedViewController() {
             playerViewController.exitsFullScreenWhenPlaybackEnds = true
             playerViewController.view.frame = view.bounds
 
@@ -49,11 +61,8 @@ final class PlayerViewController: UIViewController {
             view.addSubview(playerViewController.view)
 
             playerViewController.didMove(toParent: self)
-        #endif
-
-        playerViewController.delegate = self
-        playerLoaded = true
         }
+    #endif
 }
 
 extension PlayerViewController: AVPlayerViewControllerDelegate {
@@ -61,8 +70,12 @@ extension PlayerViewController: AVPlayerViewControllerDelegate {
         true
     }
 
+    func playerViewControllerShouldAutomaticallyDismissAtPictureInPictureStart(_: AVPlayerViewController) -> Bool {
+        false
+    }
+
     func playerViewControllerDidEndDismissalTransition(_: AVPlayerViewController) {
-        playingFullScreen = false
+        playerState.playingOutsideViewController = false
         dismiss(animated: false)
     }
 
@@ -70,7 +83,7 @@ extension PlayerViewController: AVPlayerViewControllerDelegate {
         _: AVPlayerViewController,
         willBeginFullScreenPresentationWithAnimationCoordinator _: UIViewControllerTransitionCoordinator
     ) {
-        playingFullScreen = true
+        playerState.playingOutsideViewController = true
     }
 
     func playerViewController(
@@ -79,8 +92,16 @@ extension PlayerViewController: AVPlayerViewControllerDelegate {
     ) {
         coordinator.animate(alongsideTransition: nil) { context in
             if !context.isCancelled {
-                self.playingFullScreen = false
+                self.playerState.playingOutsideViewController = false
             }
         }
     }
+
+    func playerViewControllerWillStartPictureInPicture(_: AVPlayerViewController) {
+        playerState.playingOutsideViewController = true
+    }
+
+    func playerViewControllerWillStopPictureInPicture(_: AVPlayerViewController) {
+        playerState.playingOutsideViewController = false
+    }
 }

iOS/Info.plist

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>audio</string>
+	</array>
+</dict>
+</plist>

macOS/PlayerViewController.swift

@@ -26,7 +26,7 @@ final class PlayerViewController: NSViewController {
         playerState.player = player
         playerView.player = playerState.player
 
-        playerView.controlsStyle = .floating
+        playerView.allowsPictureInPicturePlayback = true
         playerView.showsFullScreenToggleButton = true
 
         view = playerView

tvOS/Info.plist

@@ -2,7 +2,9 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
-	<key>LSRequiresIPhoneOS</key>
+	<key>UIBackgroundModes</key>
-	<true/>
+	<array>
+		<string>audio</string>
+	</array>
 </dict>
 </plist>