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Shared/Player/StreamControl.swift

@@ -0,0 +1,79 @@
+import SwiftUI
+
+struct StreamControl: View {
+    @EnvironmentObject<PlayerModel> private var player
+
+    var body: some View {
+        Group {
+            #if os(macOS)
+                Picker("", selection: $player.streamSelection) {
+                    ForEach(InstancesModel.all) { instance in
+                        let instanceStreams = availableStreamsForInstance(instance)
+                        if !instanceStreams.values.isEmpty {
+                            let kinds = Array(instanceStreams.keys).sorted { $0 < $1 }
+
+                            Section(header: Text(instance.longDescription)) {
+                                ForEach(kinds, id: \.self) { key in
+                                    ForEach(instanceStreams[key] ?? []) { stream in
+                                        Text(stream.quality).tag(Stream?.some(stream))
+                                    }
+
+                                    if kinds.count > 1 {
+                                        Divider()
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+                .disabled(player.isLoadingAvailableStreams)
+
+            #else
+                Menu {
+                    ForEach(InstancesModel.all) { instance in
+                        let instanceStreams = availableStreamsForInstance(instance)
+                        if !instanceStreams.values.isEmpty {
+                            let kinds = Array(instanceStreams.keys).sorted { $0 < $1 }
+                            Picker("", selection: $player.streamSelection) {
+                                ForEach(kinds, id: \.self) { key in
+                                    ForEach(instanceStreams[key] ?? []) { stream in
+                                        Text(stream.description).tag(Stream?.some(stream))
+                                    }
+
+                                    if kinds.count > 1 {
+                                        Divider()
+                                    }
+                                }
+                            }
+                        }
+                    }
+                } label: {
+                    Text(player.streamSelection?.quality ?? "no playable streams")
+                }
+                .disabled(player.isLoadingAvailableStreams)
+            #endif
+        }
+
+        .transaction { t in t.animation = .none }
+        .onChange(of: player.streamSelection) { selection in
+            guard !selection.isNil else {
+                return
+            }
+
+            player.upgradeToStream(selection!)
+        }
+        .frame(alignment: .trailing)
+    }
+
+    private func availableStreamsForInstance(_ instance: Instance) -> [Stream.Kind: [Stream]] {
+        let streams = player.availableStreamsSorted.filter { $0.instance == instance }.filter { player.backend.canPlay($0) }
+
+        return Dictionary(grouping: streams, by: \.kind!)
+    }
+}
+
+struct StreamControl_Previews: PreviewProvider {
+    static var previews: some View {
+        StreamControl()
+    }
+}