refactor: simplify playing queue listener handling

app/src/main/java/com/github/libretube/extensions/MediaController.kt

@@ -0,0 +1,16 @@
+package com.github.libretube.extensions
+
+import androidx.annotation.OptIn
+import androidx.core.os.bundleOf
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.session.MediaController
+import com.github.libretube.enums.PlayerCommand
+import com.github.libretube.services.AbstractPlayerService
+
+@OptIn(UnstableApi::class)
+fun MediaController.navigateVideo(videoId: String) {
+    sendCustomCommand(
+        AbstractPlayerService.runPlayerActionCommand,
+        bundleOf(PlayerCommand.PLAY_VIDEO_BY_ID.name to videoId)
+    )
+}

app/src/main/java/com/github/libretube/services/AbstractPlayerService.kt

@@ -158,14 +158,18 @@ abstract class AbstractPlayerService : MediaLibraryService(), MediaLibrarySessio
             }
 
             args.containsKey(PlayerCommand.PLAY_VIDEO_BY_ID.name) -> {
-                videoId = args.getString(PlayerCommand.PLAY_VIDEO_BY_ID.name) ?: return
+                navigateVideo(args.getString(PlayerCommand.PLAY_VIDEO_BY_ID.name) ?: return)
+            }
+        }
+    }
+
+    private fun navigateVideo(videoId: String) {
+        this.videoId = videoId
 
         CoroutineScope(Dispatchers.IO).launch {
             startPlayback()
         }
     }
-        }
-    }
 
     fun getSubtitleRoleFlags(subtitle: Subtitle?): Int {
         return if (subtitle?.autoGenerated != true) {
@@ -180,11 +184,11 @@ abstract class AbstractPlayerService : MediaLibraryService(), MediaLibrarySessio
 
         when (event) {
             PlayerEvent.Next -> {
-                PlayingQueue.navigateNext()
+                navigateVideo(PlayingQueue.getNext() ?: return)
             }
 
             PlayerEvent.Prev -> {
-                PlayingQueue.navigatePrev()
+                navigateVideo(PlayingQueue.getPrev() ?: return)
             }
 
             PlayerEvent.Stop -> {

app/src/main/java/com/github/libretube/services/OfflinePlayerService.kt

@@ -14,7 +14,6 @@ import com.github.libretube.enums.FileType
 import com.github.libretube.extensions.serializable
 import com.github.libretube.extensions.setMetadata
 import com.github.libretube.extensions.toAndroidUri
-import com.github.libretube.extensions.toID
 import com.github.libretube.helpers.PlayerHelper
 import com.github.libretube.ui.activities.MainActivity
 import com.github.libretube.ui.activities.NoInternetActivity
@@ -67,10 +66,6 @@ open class OfflinePlayerService : AbstractPlayerService() {
 
         PlayingQueue.clear()
 
-        PlayingQueue.setOnQueueTapListener { streamItem ->
-            streamItem.url?.toID()?.let { playNextVideo(it) }
-        }
-
         exoPlayer?.addListener(playerListener)
 
         fillQueue()

app/src/main/java/com/github/libretube/services/OnlinePlayerService.kt

@@ -24,7 +24,6 @@ import com.github.libretube.db.DatabaseHelper
 import com.github.libretube.enums.PlayerCommand
 import com.github.libretube.extensions.parcelable
 import com.github.libretube.extensions.setMetadata
-import com.github.libretube.extensions.toID
 import com.github.libretube.extensions.toastFromMainDispatcher
 import com.github.libretube.extensions.toastFromMainThread
 import com.github.libretube.helpers.PlayerHelper
@@ -113,10 +112,6 @@ open class OnlinePlayerService : AbstractPlayerService() {
 
         if (!playerData.keepQueue) PlayingQueue.clear()
 
-        PlayingQueue.setOnQueueTapListener { streamItem ->
-            streamItem.url?.toID()?.let { playNextVideo(it) }
-        }
-
         exoPlayer?.addListener(playerListener)
     }
 

app/src/main/java/com/github/libretube/ui/adapters/PlayingQueueAdapter.kt

@@ -13,7 +13,9 @@ import com.github.libretube.helpers.ThemeHelper
 import com.github.libretube.ui.viewholders.PlayingQueueViewHolder
 import com.github.libretube.util.PlayingQueue
 
-class PlayingQueueAdapter : RecyclerView.Adapter<PlayingQueueViewHolder>() {
+class PlayingQueueAdapter(
+    private val onQueueItemSelected: (String) -> Unit
+) : RecyclerView.Adapter<PlayingQueueViewHolder>() {
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): PlayingQueueViewHolder {
         val binding = QueueRowBinding.inflate(
@@ -45,14 +47,17 @@ class PlayingQueueAdapter : RecyclerView.Adapter<PlayingQueueViewHolder>() {
             )
 
             root.setOnClickListener {
+                val newVideoId = streamItem.url?.toID() ?: return@setOnClickListener
+
                 val oldPosition = PlayingQueue.currentIndex()
                 // get the new position from the queue to work properly after reordering the queue
                 val newPosition = PlayingQueue.getStreams().indexOfFirst {
-                    it.url?.toID() == streamItem.url?.toID()
+                    it.url?.toID() == newVideoId
                 }.takeIf { it >= 0 } ?: return@setOnClickListener
+                PlayingQueue.updateCurrent(streamItem)
 
                 // select the new item in the queue and update the selected item in the UI
-                PlayingQueue.onQueueItemSelected(newPosition)
+                onQueueItemSelected(newVideoId)
                 notifyItemChanged(oldPosition)
                 notifyItemChanged(newPosition)
             }

app/src/main/java/com/github/libretube/ui/fragments/AudioPlayerFragment.kt

@@ -27,6 +27,7 @@ import com.github.libretube.R
 import com.github.libretube.api.obj.ChapterSegment
 import com.github.libretube.constants.IntentData
 import com.github.libretube.databinding.FragmentAudioPlayerBinding
+import com.github.libretube.extensions.navigateVideo
 import com.github.libretube.extensions.normalize
 import com.github.libretube.extensions.parcelableList
 import com.github.libretube.extensions.seekBy
@@ -143,11 +144,11 @@ class AudioPlayerFragment : Fragment(), AudioPlayerOptions {
         }
 
         binding.prev.setOnClickListener {
-            PlayingQueue.navigatePrev()
+            playerController?.navigateVideo(PlayingQueue.getPrev() ?: return@setOnClickListener)
         }
 
         binding.next.setOnClickListener {
-            PlayingQueue.navigateNext()
+            playerController?.navigateVideo(PlayingQueue.getNext() ?: return@setOnClickListener)
         }
 
         listOf(binding.forwardTV, binding.rewindTV).forEach {
@@ -160,6 +161,9 @@ class AudioPlayerFragment : Fragment(), AudioPlayerOptions {
             playerController?.seekBy(PlayerHelper.seekIncrement)
         }
 
+        childFragmentManager.setFragmentResultListener(PlayingQueueSheet.PLAYING_QUEUE_REQUEST_KEY, viewLifecycleOwner) { _, args ->
+            playerController?.navigateVideo(args.getString(IntentData.videoId) ?: return@setFragmentResultListener)
+        }
         binding.openQueue.setOnClickListener {
             PlayingQueueSheet().show(childFragmentManager)
         }

app/src/main/java/com/github/libretube/ui/sheets/PlayingQueueSheet.kt

@@ -5,9 +5,12 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
+import androidx.fragment.app.setFragmentResult
 import androidx.media3.common.Player
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.github.libretube.R
+import com.github.libretube.constants.IntentData
 import com.github.libretube.databinding.QueueBottomSheetBinding
 import com.github.libretube.db.DatabaseHelper
 import com.github.libretube.db.DatabaseHolder
@@ -41,7 +44,9 @@ class PlayingQueueSheet : ExpandedBottomSheet() {
         super.onViewCreated(view, savedInstanceState)
 
         binding.optionsRecycler.layoutManager = LinearLayoutManager(context)
-        val adapter = PlayingQueueAdapter()
+        val adapter = PlayingQueueAdapter { videoId ->
+            setFragmentResult(PLAYING_QUEUE_REQUEST_KEY, bundleOf(IntentData.videoId to videoId))
+        }
         binding.optionsRecycler.adapter = adapter
 
         // scroll to the currently playing video in the queue
@@ -201,4 +206,8 @@ class PlayingQueueSheet : ExpandedBottomSheet() {
             }
             .show()
     }
+
+    companion object {
+        const val PLAYING_QUEUE_REQUEST_KEY = "playing_queue_request_key"
+    }
 }

app/src/main/java/com/github/libretube/ui/views/CustomExoPlayerView.kt

@@ -44,6 +44,7 @@ import com.github.libretube.databinding.DoubleTapOverlayBinding
 import com.github.libretube.databinding.ExoStyledPlayerControlViewBinding
 import com.github.libretube.databinding.PlayerGestureControlsViewBinding
 import com.github.libretube.extensions.dpToPx
+import com.github.libretube.extensions.navigateVideo
 import com.github.libretube.extensions.normalize
 import com.github.libretube.extensions.round
 import com.github.libretube.extensions.seekBy
@@ -257,6 +258,14 @@ abstract class CustomExoPlayerView(
             }
         }
 
+        supportFragmentManager.setFragmentResultListener(
+            PlayingQueueSheet.PLAYING_QUEUE_REQUEST_KEY,
+            findViewTreeLifecycleOwner()!!
+        ) { _, args ->
+            (player as? MediaController)?.navigateVideo(
+                args.getString(IntentData.videoId) ?: return@setFragmentResultListener
+            )
+        }
         binding.queueToggle.setOnClickListener {
             PlayingQueueSheet().show(supportFragmentManager, null)
         }
@@ -675,7 +684,8 @@ abstract class CustomExoPlayerView(
         // add a margin to the top and the bottom bar in landscape mode for notches
         val isForcedLandscape =
             activity.requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE
-        val isInLandscape = resources.configuration.orientation == Configuration.ORIENTATION_LANDSCAPE
+        val isInLandscape =
+            resources.configuration.orientation == Configuration.ORIENTATION_LANDSCAPE
         val horizontalMargin =
             if (isFullscreen() && (isInLandscape || isForcedLandscape)) LANDSCAPE_MARGIN_HORIZONTAL else LANDSCAPE_MARGIN_HORIZONTAL_NONE
 
@@ -843,15 +853,16 @@ abstract class CustomExoPlayerView(
             }
 
             KeyEvent.KEYCODE_N, KeyEvent.KEYCODE_NAVIGATE_NEXT -> {
-                PlayingQueue.navigateNext()
+                PlayingQueue.getNext()?.let { (player as? MediaController)?.navigateVideo(it) }
             }
 
             KeyEvent.KEYCODE_P, KeyEvent.KEYCODE_NAVIGATE_PREVIOUS -> {
-                PlayingQueue.navigatePrev()
+                PlayingQueue.getPrev()?.let { (player as? MediaController)?.navigateVideo(it) }
             }
 
             KeyEvent.KEYCODE_F -> {
-                val fragmentManager = ContextHelper.unwrapActivity<MainActivity>(context).supportFragmentManager
+                val fragmentManager =
+                    ContextHelper.unwrapActivity<MainActivity>(context).supportFragmentManager
                 fragmentManager.fragments.filterIsInstance<PlayerFragment>().firstOrNull()
                     ?.toggleFullscreen()
             }

app/src/main/java/com/github/libretube/util/PlayingQueue.kt

@@ -1,6 +1,5 @@
 package com.github.libretube.util
 
-import android.util.Log
 import androidx.media3.common.Player
 import com.github.libretube.api.PlaylistsHelper
 import com.github.libretube.api.RetrofitInstance
@@ -20,11 +19,6 @@ object PlayingQueue {
 
     private val queueJobs = mutableListOf<Job>()
 
-    /**
-     * Listener that gets called when the user selects an item from the queue
-     */
-    private var onQueueTapListener: (StreamItem) -> Unit = {}
-
     var repeatMode: Int = Player.REPEAT_MODE_OFF
 
     fun clear() {
@@ -223,34 +217,7 @@ object PlayingQueue {
         add(*streams.filter { !it.isLive }.toTypedArray(), skipExisting = true)
     }
 
-    fun onQueueItemSelected(index: Int) {
-        try {
-            val streamItem = queue[index]
-            updateCurrent(streamItem)
-            onQueueTapListener.invoke(streamItem)
-        } catch (e: Exception) {
-            Log.e("Queue on tap", "lifecycle already ended")
-        }
-    }
-
-    fun navigatePrev() {
-        if (!hasPrev()) return
-
-        onQueueItemSelected(currentIndex() - 1)
-    }
-
-    fun navigateNext() {
-        if (!hasNext()) return
-
-        onQueueItemSelected(currentIndex() + 1)
-    }
-
-    fun setOnQueueTapListener(listener: (StreamItem) -> Unit) {
-        onQueueTapListener = listener
-    }
-
     fun resetToDefaults() {
         repeatMode = Player.REPEAT_MODE_OFF
-        onQueueTapListener = {}
     }
 }