improved subtitle handling

- fix subtitle disabling not working
- make subtitle adding/removing async
- make subtitle menu non blocking

Signed-off-by: Toni Förster <toni.foerster@gmail.com>

Model/Player/Backends/MPVBackend.swift

@@ -23,15 +23,14 @@ final class MPVBackend: PlayerBackend {
 
     var stream: Stream?
     var video: Video?
-    var captions: Captions? { didSet {
-        guard let captions else {
-            if client?.areSubtitlesAdded == true {
-                client?.removeSubs()
+    var captions: Captions? {
+        didSet {
+            Task {
+                await handleCaptionsChange()
             }
-            return
         }
-        addSubTrack(captions.url)
-    }}
+    }
+
     var currentTime: CMTime?
 
     var loadedVideo = false
@@ -617,10 +616,14 @@ final class MPVBackend: PlayerBackend {
     }
 
     func addSubTrack(_ url: URL) {
-        if client?.areSubtitlesAdded == true {
-            client?.removeSubs()
+        Task {
+            if let areSubtitlesAdded = client?.areSubtitlesAdded {
+                if await areSubtitlesAdded() {
+                    await client?.removeSubs()
+                }
+            }
+            await client?.addSubTrack(url)
         }
-        client?.addSubTrack(url)
     }
 
     func setVideoToAuto() {
@@ -684,6 +687,17 @@ final class MPVBackend: PlayerBackend {
         }
     }
 
+    private func handleCaptionsChange() async {
+        guard let captions else {
+            if let isSubtitlesAdded = client?.areSubtitlesAdded, await isSubtitlesAdded() {
+                await client?.removeSubs()
+            }
+            return
+        }
+
+        addSubTrack(captions.url)
+    }
+
     private func handlePropertyChange(_ name: String, _ property: mpv_event_property) {
         switch name {
         case "pause":

Model/Player/Backends/MPVClient.swift

@@ -349,21 +349,15 @@ final class MPVClient: ObservableObject {
         return Int(fps.rounded())
     }
 
-    var areSubtitlesAdded: Bool {
+    func areSubtitlesAdded() async -> Bool {
         guard !mpv.isNil else { return false }
 
-        // Retrieve the number of tracks
-        let trackCount = getInt("track-list/count")
+        let trackCount = await Task(operation: { getInt("track-list/count") }).value
         guard trackCount > 0 else { return false }
 
         for index in 0 ..< trackCount {
-            // Get the type of each track
-            if let trackType = getString("track-list/\(index)/type"), trackType == "sub" {
-                // Check if the subtitle track is currently selected
-                let selected = getInt("track-list/\(index)/selected")
-                if selected == 1 {
-                    return true
-                }
+            if let trackType = await Task(operation: { getString("track-list/\(index)/type") }).value, trackType == "sub" {
+                return true
             }
         }
         return false
@@ -539,12 +533,16 @@ final class MPVClient: ObservableObject {
         command("video-add", args: [url.absoluteString])
     }
 
-    func addSubTrack(_ url: URL) {
-        command("sub-add", args: [url.absoluteString])
+    func addSubTrack(_ url: URL) async {
+        await Task {
+            command("sub-add", args: [url.absoluteString])
+        }.value
     }
 
-    func removeSubs() {
-        command("sub-remove")
+    func removeSubs() async {
+        await Task {
+            command("sub-remove")
+        }.value
     }
 
     func setVideoToAuto() {

Shared/Player/Controls/ControlsOverlay.swift

@@ -5,6 +5,8 @@ struct ControlsOverlay: View {
     @ObservedObject private var player = PlayerModel.shared
     private var model = PlayerControlsModel.shared
 
+    @State private var availableCaptions: [Captions] = []
+    @State private var isLoadingCaptions = true
     @State private var contentSize: CGSize = .zero
 
     @Default(.showMPVPlaybackStats) private var showMPVPlaybackStats
@@ -335,7 +337,6 @@ struct ControlsOverlay: View {
                     Image(systemName: "text.bubble")
                     if let captions = captionsBinding.wrappedValue,
                        let language = LanguageCodes(rawValue: captions.code)
-
                     {
                         Text("\(language.description.capitalized) (\(language.rawValue))")
                             .foregroundColor(.accentColor)
@@ -380,17 +381,16 @@ struct ControlsOverlay: View {
             .contextMenu {
                 Button("Disabled") { captionsBinding.wrappedValue = nil }
 
-                ForEach(player.currentVideo?.captions ?? []) { caption in
+                ForEach(availableCaptions) { caption in
                     Button(caption.description) { captionsBinding.wrappedValue = caption }
                 }
                 Button("Cancel", role: .cancel) {}
             }
-
         #endif
     }
 
     @ViewBuilder private var captionsPicker: some View {
-        let captions = player.currentVideo?.captions ?? []
+        let captions = availableCaptions
         Picker("Captions", selection: captionsBinding) {
             if captions.isEmpty {
                 Text("Not available").tag(Captions?.none)
@@ -402,6 +402,31 @@ struct ControlsOverlay: View {
             }
         }
         .disabled(captions.isEmpty)
+        .onAppear {
+            loadCaptions()
+        }
+    }
+
+    private func loadCaptions() {
+        isLoadingCaptions = true
+
+        // Fetch captions asynchronously
+        Task {
+            let fetchedCaptions = await fetchCaptions()
+            await MainActor.run {
+                // Update state on the main thread
+                self.availableCaptions = fetchedCaptions
+                self.isLoadingCaptions = false
+            }
+        }
+    }
+
+    private func fetchCaptions() async -> [Captions] {
+        // Access currentVideo from the main actor context
+        await MainActor.run {
+            // Safely access the main actor-isolated currentVideo property
+            player.currentVideo?.captions ?? []
+        }
     }
 
     private var captionsBinding: Binding<Captions?> {

Shared/Player/PlayerBackendView.swift

@@ -43,7 +43,7 @@ struct PlayerBackendView: View {
                 Color.clear
                     .onAppear { player.playerSize = proxy.size }
                     .onChange(of: proxy.size) { _ in player.playerSize = proxy.size }
-                    .onChange(of: player.currentItem?.id) { _ in player.playerSize = proxy.size }
+                    .onChange(of: player.controls.presentingOverlays) { _ in player.playerSize = proxy.size }
             })
 
             #if !os(tvOS)

Shared/Player/PlayerDragGesture.swift

@@ -56,6 +56,7 @@ extension VideoPlayerView {
                             player.seek.gestureStart = time
                         }
                         let timeSeek = (time / player.playerSize.width) * horizontalDrag * seekGestureSpeed
+
                         player.seek.gestureSeek = timeSeek
                     }
                     return
@@ -79,54 +80,6 @@ extension VideoPlayerView {
             }
     }
 
-    var detailsDragGesture: some Gesture {
-        DragGesture(minimumDistance: 30)
-            .onChanged { value in
-                handleDetailsDragChange(value)
-            }
-            .onEnded { value in
-                handleDetailsDragEnd(value)
-            }
-    }
-
-    private func handleDetailsDragChange(_ value: DragGesture.Value) {
-        let maxOffset = -player.playerSize.height
-
-        // Continuous drag update for smooth movement of VideoDetails
-        if fullScreenDetails {
-            // Allow only downward dragging when in fullscreen
-            if value.translation.height > 0 {
-                detailViewDragOffset = min(value.translation.height, abs(maxOffset))
-            }
-        } else {
-            // Allow only upward dragging when not in fullscreen
-            if value.translation.height < 0 {
-                detailViewDragOffset = max(value.translation.height, maxOffset)
-            }
-        }
-    }
-
-    private func handleDetailsDragEnd(_ value: DragGesture.Value) {
-        if value.translation.height < -50, !fullScreenDetails {
-            // Swipe up to enter fullscreen
-            withAnimation(Constants.overlayAnimation) {
-                fullScreenDetails = true
-                detailViewDragOffset = 0
-            }
-        } else if value.translation.height > 50, fullScreenDetails {
-            // Swipe down to exit fullscreen
-            withAnimation(Constants.overlayAnimation) {
-                fullScreenDetails = false
-                detailViewDragOffset = 0
-            }
-        } else {
-            // Reset offset if drag was not significant
-            withAnimation(Constants.overlayAnimation) {
-                detailViewDragOffset = 0
-            }
-        }
-    }
-
     func onPlayerDragGestureEnded() {
         if horizontalPlayerGestureEnabled, isHorizontalDrag {
             isHorizontalDrag = false
@@ -155,6 +108,7 @@ extension VideoPlayerView {
         }
     }
 
+    // Function to temporarily disable the toggle gesture after a fullscreen change
     private func disableGestureTemporarily() {
         disableToggleGesture = true
         DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {

Shared/Player/Video Details/VideoDetails.swift

@@ -223,7 +223,7 @@ struct VideoDetails: View {
             .frame(maxWidth: .infinity, alignment: .leading)
             .contentShape(Rectangle())
             .padding(.horizontal, 16)
-
+            // swiftlint:disable trailing_closure
             // TODO: when setting tvOS minimum to 16, the platform modifier can be removed
             #if !os(tvOS)
                 .simultaneousGesture( // Simultaneous gesture to prioritize button tap
@@ -234,7 +234,7 @@ struct VideoDetails: View {
                     }
                 )
             #endif
-
+            // swiftlint:enable trailing_closure
             if VideoActions().isAnyActionVisible() {
                 VideoActions(video: player.videoForDisplay)
                     .padding(.vertical, 5)

Shared/Player/VideoPlayerView.swift

@@ -24,12 +24,13 @@ struct VideoPlayerView: View {
         #if os(macOS)
             335
         #else
-            140
+            200
         #endif
     }
 
     @State private var playerSize: CGSize = .zero { didSet { updateSidebarQueue() } }
     @State private var hoveringPlayer = false
+    @State private var fullScreenDetails = false
     @State private var sidebarQueue = defaultSidebarQueueValue
 
     @Environment(\.colorScheme) private var colorScheme
@@ -50,14 +51,12 @@ struct VideoPlayerView: View {
         @State var isHorizontalDrag = false
         @State var isVerticalDrag = false
         @State var viewDragOffset = Self.hiddenOffset
-        @State var detailViewDragOffset: Double = 0
         // swiftlint:enable private_swiftui_state
 
     #endif
 
     // swiftlint:disable private_swiftui_state
     @State var disableToggleGesture = false
-    @State var fullScreenDetails = false
     // swiftlint:enable private_swiftui_state
 
     @ObservedObject var player = PlayerModel.shared // swiftlint:disable:this swiftui_state_private
@@ -308,8 +307,6 @@ struct VideoPlayerView: View {
                             #endif
                             .id(player.currentVideo?.cacheKey)
                             .transition(.opacity)
-                            .offset(y: detailViewDragOffset)
-                            .gesture(detailsDragGesture)
                         } else {
                             VStack {}
                         }