Open queue scrolled to current track.

app/src/main/java/audio/funkwhale/ffa/fragments/QueueFragment.kt

@@ -50,7 +50,9 @@ class QueueFragment : BottomSheetDialogFragment() {
     return super.onCreateDialog(savedInstanceState).apply {
       setOnShowListener {
         findViewById<View>(com.google.android.material.R.id.design_bottom_sheet)?.let {
-          BottomSheetBehavior.from(it).skipCollapsed = true
+          val behavior = BottomSheetBehavior.from(it)
+          behavior.skipCollapsed = true
+          behavior.state = BottomSheetBehavior.STATE_EXPANDED
         }
       }
     }
@@ -100,10 +102,10 @@ class QueueFragment : BottomSheetDialogFragment() {
       CommandBus.send(Command.ClearQueue)
     }
 
-    refresh()
+    refresh(true)
   }
 
-  private fun refresh() {
+  private fun refresh(scroll: Boolean) {
     lifecycleScope.launch(Main) {
       RequestBus.send(Request.GetQueue).wait<Response.Queue>()?.let { response ->
         binding.included.let { included ->
@@ -120,6 +122,11 @@ class QueueFragment : BottomSheetDialogFragment() {
             }
           }
         }
+        if (scroll) {
+          RequestBus.send(Request.GetCurrentTrackIndex).wait<Response.CurrentTrackIndex>()?.let { sresp ->
+            binding.included.queue.scrollToPosition(sresp.index)
+          }
+        }
       }
     }
   }
@@ -128,7 +135,7 @@ class QueueFragment : BottomSheetDialogFragment() {
     lifecycleScope.launch(Main) {
       EventBus.get().collect { message ->
         if (message is Event.QueueChanged) {
-          refresh()
+          refresh(false)
         }
       }
     }
@@ -136,7 +143,7 @@ class QueueFragment : BottomSheetDialogFragment() {
     lifecycleScope.launch(Main) {
       CommandBus.get().collect { command ->
         if (command is Command.RefreshTrack) {
-          refresh()
+          refresh(false)
         }
       }
     }

app/src/main/java/audio/funkwhale/ffa/playback/PlayerService.kt

@@ -240,6 +240,8 @@ class PlayerService : Service() {
       RequestBus.get().collect { request ->
         if (request is Request.GetCurrentTrack) {
           request.channel?.trySend(Response.CurrentTrack(queue.current()))?.isSuccess
+        } else if (request is Request.GetCurrentTrackIndex) {
+          request.channel?.trySend(Response.CurrentTrackIndex(queue.currentIndex()))?.isSuccess
         } else if (request is Request.GetState) {
           request.channel?.trySend(Response.State(player.playWhenReady))?.isSuccess
         } else if (request is Request.GetQueue) {

app/src/main/java/audio/funkwhale/ffa/playback/QueueManager.kt

@@ -167,6 +167,8 @@ class QueueManager(val context: Context) {
     return metadata.getOrNull(current)
   }
 
+  fun currentIndex(): Int = (if (current == -1) 0 else current)
+
   fun clear() {
     metadata = mutableListOf()
     dataSources.clear()

app/src/main/java/audio/funkwhale/ffa/utils/Bus.kt

@@ -61,6 +61,7 @@ sealed class Request(var channel: Channel<Response>? = null) {
   object GetState : Request()
   object GetQueue : Request()
   object GetCurrentTrack : Request()
+  object GetCurrentTrackIndex : Request()
   object GetDownloads : Request()
 }
 
@@ -68,6 +69,7 @@ sealed class Response {
   class State(val playing: Boolean) : Response()
   class Queue(val queue: List<Track>) : Response()
   class CurrentTrack(val track: Track?) : Response()
+  class CurrentTrackIndex(val index: Int) : Response()
   class Downloads(val cursor: DownloadCursor) : Response()
 }