fix: chapters dont work in audio mode

app/src/main/java/com/github/libretube/ui/activities/OfflinePlayerActivity.kt

@@ -45,6 +45,7 @@ import com.github.libretube.obj.PlayerNotificationData
 import com.github.libretube.ui.base.BaseActivity
 import com.github.libretube.ui.interfaces.TimeFrameReceiver
 import com.github.libretube.ui.listeners.SeekbarPreviewListener
+import com.github.libretube.ui.models.ChaptersViewModel
 import com.github.libretube.ui.models.PlayerViewModel
 import com.github.libretube.util.NowPlayingNotification
 import com.github.libretube.util.OfflineTimeFrameReceiver
@@ -66,6 +67,7 @@ class OfflinePlayerActivity : BaseActivity() {
 
     private lateinit var playerBinding: ExoStyledPlayerControlViewBinding
     private val playerViewModel: PlayerViewModel by viewModels()
+    private val chaptersViewModel: ChaptersViewModel by viewModels()
 
     private val watchPositionTimer = PauseableTimer(
         onTick = this::saveWatchPosition,
@@ -177,7 +179,8 @@ class OfflinePlayerActivity : BaseActivity() {
 
         binding.player.initialize(
             binding.doubleTapOverlay.binding,
-            binding.playerGestureControlsView.binding
+            binding.playerGestureControlsView.binding,
+            chaptersViewModel
         )
 
         nowPlayingNotification = NowPlayingNotification(this, player, NowPlayingNotification.Companion.NowPlayingNotificationType.VIDEO_OFFLINE)
@@ -189,7 +192,7 @@ class OfflinePlayerActivity : BaseActivity() {
                 Database.downloadDao().findById(videoId)
             }
             val chapters = downloadChapters.map(DownloadChapter::toChapterSegment)
-            playerViewModel.chaptersLiveData.value = chapters
+            chaptersViewModel.chaptersLiveData.value = chapters
             binding.player.setChapters(chapters)
 
             val downloadFiles = downloadItems.filter { it.path.exists() }

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

@@ -14,7 +14,7 @@ import com.github.libretube.ui.viewholders.ChaptersViewHolder
 
 class ChaptersAdapter(
     var chapters: List<ChapterSegment>,
-    private val videoDuration: Long,
+    private val videoDurationSeconds: Long,
     private val seekTo: (Long) -> Unit
 ) : RecyclerView.Adapter<ChaptersViewHolder>() {
     private var selectedPosition = 0
@@ -36,12 +36,11 @@ class ChaptersAdapter(
             chapterTitle.text = chapter.title
             timeStamp.text = DateUtils.formatElapsedTime(chapter.start)
 
-            val playerDurationSeconds = videoDuration / 1000
             val chapterEnd = if (chapter.highlightDrawable == null) {
-                chapters.getOrNull(position + 1)?.start ?: playerDurationSeconds
+                chapters.getOrNull(position + 1)?.start ?: videoDurationSeconds
             } else {
                 // the duration for chapters is hardcoded, since it's not provided by the SB API
-                minOf(chapter.start + ChapterSegment.HIGHLIGHT_LENGTH, playerDurationSeconds)
+                minOf(chapter.start + ChapterSegment.HIGHLIGHT_LENGTH, videoDurationSeconds)
             }
             val durationSpan = chapterEnd - chapter.start
             duration.text = root.context.getString(

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

@@ -31,6 +31,7 @@ import com.github.libretube.extensions.normalize
 import com.github.libretube.extensions.seekBy
 import com.github.libretube.extensions.toID
 import com.github.libretube.extensions.togglePlayPauseState
+import com.github.libretube.extensions.updateIfChanged
 import com.github.libretube.helpers.AudioHelper
 import com.github.libretube.helpers.BackgroundHelper
 import com.github.libretube.helpers.ImageHelper
@@ -42,6 +43,7 @@ import com.github.libretube.services.OnlinePlayerService
 import com.github.libretube.ui.activities.MainActivity
 import com.github.libretube.ui.interfaces.AudioPlayerOptions
 import com.github.libretube.ui.listeners.AudioPlayerThumbnailListener
+import com.github.libretube.ui.models.ChaptersViewModel
 import com.github.libretube.ui.models.PlayerViewModel
 import com.github.libretube.ui.sheets.ChaptersBottomSheet
 import com.github.libretube.ui.sheets.PlaybackOptionsSheet
@@ -61,6 +63,7 @@ class AudioPlayerFragment : Fragment(), AudioPlayerOptions {
     private lateinit var audioHelper: AudioHelper
     private val mainActivity get() = context as MainActivity
     private val viewModel: PlayerViewModel by activityViewModels()
+    private val chaptersModel: ChaptersViewModel by activityViewModels()
 
     // for the transition
     private var transitionStartId = 0
@@ -167,12 +170,24 @@ class AudioPlayerFragment : Fragment(), AudioPlayerOptions {
             )
         }
 
+        requireActivity().supportFragmentManager.setFragmentResultListener(
+            ChaptersBottomSheet.SEEK_TO_POSITION_REQUEST_KEY,
+            viewLifecycleOwner
+        ) { _, bundle ->
+            playerService?.player?.seekTo(bundle.getLong(IntentData.currentPosition))
+        }
+
         binding.openChapters.setOnClickListener {
             val playerService = playerService ?: return@setOnClickListener
-            viewModel.chaptersLiveData.value = playerService.streams?.chapters.orEmpty()
+            chaptersModel.chaptersLiveData.value = playerService.streams?.chapters.orEmpty()
 
             ChaptersBottomSheet()
-                .show(childFragmentManager)
+                .apply {
+                    arguments = bundleOf(
+                        IntentData.duration to playerService.player?.duration?.div(1000)
+                    )
+                }
+                .show(requireActivity().supportFragmentManager)
         }
 
         binding.miniPlayerClose.setOnClickListener {
@@ -205,6 +220,8 @@ class AudioPlayerFragment : Fragment(), AudioPlayerOptions {
         }
 
         if (!PlayerHelper.playAutomatically) updatePlayPauseButton()
+
+        updateChapterIndex()
     }
 
     private fun killFragment() {
@@ -435,4 +452,14 @@ class AudioPlayerFragment : Fragment(), AudioPlayerOptions {
 
         binding.volumeTextView.text = "${bar.progress.normalize(0, bar.max, 0, 100)}"
     }
+
+    private fun updateChapterIndex() {
+        if (_binding == null) return
+        handler.postDelayed(this::updateChapterIndex, 100)
+
+        val player = playerService?.player ?: return
+
+        val currentIndex = PlayerHelper.getCurrentChapterIndex(player.currentPosition, chaptersModel.chapters)
+        chaptersModel.currentChapterIndex.updateIfChanged(currentIndex ?: return)
+    }
 }

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

@@ -97,6 +97,7 @@ import com.github.libretube.ui.extensions.animateDown
 import com.github.libretube.ui.extensions.setupSubscriptionButton
 import com.github.libretube.ui.interfaces.OnlinePlayerOptions
 import com.github.libretube.ui.listeners.SeekbarPreviewListener
+import com.github.libretube.ui.models.ChaptersViewModel
 import com.github.libretube.ui.models.CommentsViewModel
 import com.github.libretube.ui.models.PlayerViewModel
 import com.github.libretube.ui.sheets.BaseBottomSheet
@@ -127,6 +128,7 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
 
     private val viewModel: PlayerViewModel by activityViewModels()
     private val commentsViewModel: CommentsViewModel by activityViewModels()
+    private val chaptersViewModel: ChaptersViewModel by activityViewModels()
 
     // Video information passed by the intent
     private lateinit var videoId: String
@@ -467,6 +469,8 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
                     }
                     (activity as MainActivity).requestOrientationChange()
                 }
+
+                updateMaxSheetHeight()
             }
         })
 
@@ -634,7 +638,9 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
     }
 
     private fun updateMaxSheetHeight() {
-        viewModel.maxSheetHeightPx = binding.root.height - binding.player.height
+        val maxHeight = binding.root.height - binding.player.height
+        viewModel.maxSheetHeightPx = viewModel.maxSheetHeightPx
+        chaptersViewModel.maxSheetHeightPx = maxHeight
     }
 
     private fun playOnBackground() {
@@ -1022,7 +1028,7 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
     @SuppressLint("SetTextI18n")
     private fun initializePlayerView() {
         // initialize the player view actions
-        binding.player.initialize(doubleTapOverlayBinding, playerGestureControlsViewBinding)
+        binding.player.initialize(doubleTapOverlayBinding, playerGestureControlsViewBinding, chaptersViewModel)
         binding.player.initPlayerOptions(viewModel, viewLifecycleOwner, trackSelector, this)
 
         binding.descriptionLayout.setStreams(streams)
@@ -1040,7 +1046,7 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
         playerBinding.exoTitle.text = streams.title
 
         // init the chapters recyclerview
-        viewModel.chaptersLiveData.value = streams.chapters
+        chaptersViewModel.chaptersLiveData.value = streams.chapters
 
         if (PlayerHelper.relatedStreamsEnabled) {
             val relatedLayoutManager = binding.relatedRecView.layoutManager as LinearLayoutManager
@@ -1132,8 +1138,8 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
             start = highlightStart,
             highlightDrawable = frame?.toDrawable(requireContext().resources)
         )
-        viewModel.chaptersLiveData.postValue(
-            viewModel.chapters.plus(highlightChapter).sortedBy { it.start }
+        chaptersViewModel.chaptersLiveData.postValue(
+            chaptersViewModel.chapters.plus(highlightChapter).sortedBy { it.start }
         )
 
         withContext(Dispatchers.Main) {

app/src/main/java/com/github/libretube/ui/models/ChaptersViewModel.kt

@@ -0,0 +1,12 @@
+package com.github.libretube.ui.models
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import com.github.libretube.api.obj.ChapterSegment
+
+class ChaptersViewModel: ViewModel() {
+    val chaptersLiveData = MutableLiveData<List<ChapterSegment>>()
+    val chapters get() = chaptersLiveData.value.orEmpty()
+    val currentChapterIndex = MutableLiveData<Int>()
+    var maxSheetHeightPx = 0
+}

app/src/main/java/com/github/libretube/ui/models/PlayerViewModel.kt

@@ -10,7 +10,6 @@ import androidx.media3.exoplayer.trackselection.DefaultTrackSelector
 import com.github.libretube.R
 import com.github.libretube.api.JsonHelper
 import com.github.libretube.api.RetrofitInstance
-import com.github.libretube.api.obj.ChapterSegment
 import com.github.libretube.api.obj.Message
 import com.github.libretube.api.obj.Segment
 import com.github.libretube.api.obj.Streams
@@ -48,9 +47,6 @@ class PlayerViewModel : ViewModel() {
 
     var maxSheetHeightPx = 0
 
-    val chaptersLiveData = MutableLiveData<List<ChapterSegment>>()
-
-    val chapters get() = chaptersLiveData.value.orEmpty()
     var sponsorBlockEnabled = PlayerHelper.sponsorBlockEnabled
 
     /**

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

@@ -2,29 +2,32 @@ package com.github.libretube.ui.sheets
 
 import android.annotation.SuppressLint
 import android.os.Bundle
-import android.os.Handler
-import android.os.Looper
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.ViewTreeObserver
+import androidx.core.os.bundleOf
 import androidx.core.view.isVisible
 import androidx.fragment.app.activityViewModels
-import androidx.media3.common.util.UnstableApi
+import androidx.fragment.app.setFragmentResult
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.github.libretube.R
+import com.github.libretube.constants.IntentData
 import com.github.libretube.databinding.BottomSheetBinding
-import com.github.libretube.helpers.PlayerHelper
 import com.github.libretube.ui.adapters.ChaptersAdapter
-import com.github.libretube.ui.models.PlayerViewModel
+import com.github.libretube.ui.models.ChaptersViewModel
 
-@UnstableApi
 class ChaptersBottomSheet : UndimmedBottomSheet() {
     private var _binding: BottomSheetBinding? = null
     private val binding get() = _binding!!
-    private val handler = Handler(Looper.getMainLooper())
 
-    private val playerViewModel: PlayerViewModel by activityViewModels()
+    private val chaptersViewModel: ChaptersViewModel by activityViewModels()
+    private var duration = 0L
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        duration = requireArguments().getLong(IntentData.duration, 0L)
+    }
 
     override fun onCreateView(
         inflater: LayoutInflater,
@@ -35,61 +38,45 @@ class ChaptersBottomSheet : UndimmedBottomSheet() {
         return binding.root
     }
 
-    private val updatePosition = object : Runnable {
-        override fun run() {
-            val binding = _binding ?: return
-            handler.postDelayed(this, 200)
-
-            val currentIndex = getCurrentIndex() ?: return
-
-            val adapter = binding.optionsRecycler.adapter as ChaptersAdapter
-            adapter.updateSelectedPosition(currentIndex)
-        }
-    }
-
     @SuppressLint("NotifyDataSetChanged")
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
         binding.optionsRecycler.layoutManager = LinearLayoutManager(context)
         val adapter =
-            ChaptersAdapter(playerViewModel.chapters, playerViewModel.player?.duration ?: 0) {
-                playerViewModel.player?.seekTo(it)
+            ChaptersAdapter(chaptersViewModel.chapters, duration) {
+                setFragmentResult(SEEK_TO_POSITION_REQUEST_KEY, bundleOf(IntentData.currentPosition to it))
             }
         binding.optionsRecycler.adapter = adapter
 
         binding.optionsRecycler.viewTreeObserver.addOnGlobalLayoutListener(
             object : ViewTreeObserver.OnGlobalLayoutListener {
                 override fun onGlobalLayout() {
-                    val currentIndex = getCurrentIndex() ?: return
-                    binding.optionsRecycler.scrollToPosition(currentIndex)
+                    chaptersViewModel.currentChapterIndex.value?.let {
+                        binding.optionsRecycler.scrollToPosition(it)
+                    }
 
                     binding.optionsRecycler.viewTreeObserver.removeOnGlobalLayoutListener(this)
                 }
             }
         )
 
+        chaptersViewModel.currentChapterIndex.observe(viewLifecycleOwner) { currentIndex ->
+            if (_binding == null) return@observe
+
+            adapter.updateSelectedPosition(currentIndex)
+        }
+
         binding.bottomSheetTitle.text = context?.getString(R.string.chapters)
         binding.bottomSheetTitleLayout.isVisible = true
 
-        playerViewModel.chaptersLiveData.observe(viewLifecycleOwner) {
+        chaptersViewModel.chaptersLiveData.observe(viewLifecycleOwner) {
             adapter.chapters = it
             adapter.notifyDataSetChanged()
         }
-
-        updatePosition.run()
     }
 
-    private fun getCurrentIndex(): Int? {
-        val player = playerViewModel.player ?: return null
-
-        return PlayerHelper.getCurrentChapterIndex(
-            player.currentPosition,
-            playerViewModel.chapters
-        )
-    }
-
-    override fun getSheetMaxHeightPx() = playerViewModel.maxSheetHeightPx
+    override fun getSheetMaxHeightPx() = chaptersViewModel.maxSheetHeightPx
 
     override fun getDragHandle() = binding.dragHandle
 
@@ -99,4 +86,8 @@ class ChaptersBottomSheet : UndimmedBottomSheet() {
         super.onDestroyView()
         _binding = null
     }
+
+    companion object {
+        const val SEEK_TO_POSITION_REQUEST_KEY = "seek_to_position_request_key"
+    }
 }

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

@@ -19,6 +19,7 @@ import android.widget.ImageView
 import android.widget.TextView
 import androidx.appcompat.widget.TooltipCompat
 import androidx.core.content.ContextCompat
+import androidx.core.os.bundleOf
 import androidx.core.os.postDelayed
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.isGone
@@ -26,6 +27,7 @@ import androidx.core.view.isInvisible
 import androidx.core.view.isVisible
 import androidx.core.view.marginStart
 import androidx.core.view.updateLayoutParams
+import androidx.lifecycle.findViewTreeLifecycleOwner
 import androidx.media3.common.C
 import androidx.media3.common.Player
 import androidx.media3.common.text.Cue
@@ -36,7 +38,7 @@ import androidx.media3.ui.PlayerView
 import androidx.media3.ui.SubtitleView
 import androidx.media3.ui.TimeBar
 import com.github.libretube.R
-import com.github.libretube.api.obj.ChapterSegment
+import com.github.libretube.constants.IntentData
 import com.github.libretube.constants.PreferenceKeys
 import com.github.libretube.databinding.DoubleTapOverlayBinding
 import com.github.libretube.databinding.ExoStyledPlayerControlViewBinding
@@ -46,6 +48,7 @@ import com.github.libretube.extensions.normalize
 import com.github.libretube.extensions.round
 import com.github.libretube.extensions.seekBy
 import com.github.libretube.extensions.togglePlayPauseState
+import com.github.libretube.extensions.updateIfChanged
 import com.github.libretube.helpers.AudioHelper
 import com.github.libretube.helpers.BrightnessHelper
 import com.github.libretube.helpers.ContextHelper
@@ -59,6 +62,7 @@ import com.github.libretube.ui.fragments.PlayerFragment
 import com.github.libretube.ui.interfaces.PlayerGestureOptions
 import com.github.libretube.ui.interfaces.PlayerOptions
 import com.github.libretube.ui.listeners.PlayerGestureController
+import com.github.libretube.ui.models.ChaptersViewModel
 import com.github.libretube.ui.sheets.BaseBottomSheet
 import com.github.libretube.ui.sheets.ChaptersBottomSheet
 import com.github.libretube.ui.sheets.PlaybackOptionsSheet
@@ -81,6 +85,7 @@ abstract class CustomExoPlayerView(
     private lateinit var playerGestureController: PlayerGestureController
     private lateinit var brightnessHelper: BrightnessHelper
     private lateinit var audioHelper: AudioHelper
+    private lateinit var chaptersViewModel: ChaptersViewModel
     private var doubleTapOverlayBinding: DoubleTapOverlayBinding? = null
     private var chaptersBottomSheet: ChaptersBottomSheet? = null
     private var scrubbingTimeBar = false
@@ -114,10 +119,12 @@ abstract class CustomExoPlayerView(
 
     fun initialize(
         doubleTapOverlayBinding: DoubleTapOverlayBinding,
-        playerGestureControlsViewBinding: PlayerGestureControlsViewBinding
+        playerGestureControlsViewBinding: PlayerGestureControlsViewBinding,
+        chaptersViewModel: ChaptersViewModel
     ) {
         this.doubleTapOverlayBinding = doubleTapOverlayBinding
         this.gestureViewBinding = playerGestureControlsViewBinding
+        this.chaptersViewModel = chaptersViewModel
         this.playerGestureController = PlayerGestureController(context as BaseActivity, this)
         this.brightnessHelper = BrightnessHelper(context as Activity)
         this.audioHelper = AudioHelper(context)
@@ -216,11 +223,24 @@ abstract class CustomExoPlayerView(
 
         updateCurrentPosition()
 
+        activity.supportFragmentManager.setFragmentResultListener(
+            ChaptersBottomSheet.SEEK_TO_POSITION_REQUEST_KEY,
+            findViewTreeLifecycleOwner() ?: activity
+        ) { _, bundle ->
+            player?.seekTo(bundle.getLong(IntentData.currentPosition))
+        }
+
         // enable the chapters dialog in the player
         binding.chapterName.setOnClickListener {
-            val sheet = chaptersBottomSheet ?: ChaptersBottomSheet().also {
-                chaptersBottomSheet = it
-            }
+            val sheet = chaptersBottomSheet ?: ChaptersBottomSheet()
+                .apply {
+                    arguments = bundleOf(
+                        IntentData.duration to player?.duration?.div(1000)
+                    )
+                }
+                .also {
+                    chaptersBottomSheet = it
+                }
 
             if (sheet.isVisible) {
                 sheet.dismiss()
@@ -231,9 +251,9 @@ abstract class CustomExoPlayerView(
     }
 
     // set the name of the video chapter in the exoPlayerView
-   fun setCurrentChapterName(forceUpdate: Boolean = false, enqueueNew: Boolean = true) {
-       val player = player ?: return
-        val chapters = getChapters()
+    fun setCurrentChapterName(forceUpdate: Boolean = false, enqueueNew: Boolean = true) {
+        val player = player ?: return
+        val chapters = chaptersViewModel.chapters
 
         binding.chapterName.isInvisible = chapters.isEmpty()
 
@@ -246,10 +266,9 @@ abstract class CustomExoPlayerView(
         // if the user is scrubbing the time bar, don't update
         if (scrubbingTimeBar && !forceUpdate) return
 
-        val newChapterName =
-            PlayerHelper.getCurrentChapterIndex(player.currentPosition, chapters)
-                ?.let { chapters[it].title.trim() }
-                ?: context.getString(R.string.no_chapter)
+        val currentIndex = PlayerHelper.getCurrentChapterIndex(player.currentPosition, chapters)
+        val newChapterName = currentIndex?.let { chapters[it].title.trim() } ?: context.getString(R.string.no_chapter)
+        chaptersViewModel.currentChapterIndex.updateIfChanged(currentIndex ?: return)
 
         // change the chapter name textView text to the chapterName
         if (newChapterName != binding.chapterName.text) {
@@ -627,8 +646,10 @@ abstract class CustomExoPlayerView(
         if (!activity.hasCutout && binding.topBar.marginStart == LANDSCAPE_MARGIN_HORIZONTAL_NONE) return
 
         // add a margin to the top and the bottom bar in landscape mode for notches
-        val isForcedPortrait = activity.requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_USER_PORTRAIT
-        val horizontalMargin = if (isFullscreen() && !isForcedPortrait) LANDSCAPE_MARGIN_HORIZONTAL else LANDSCAPE_MARGIN_HORIZONTAL_NONE
+        val isForcedPortrait =
+            activity.requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_USER_PORTRAIT
+        val horizontalMargin =
+            if (isFullscreen() && !isForcedPortrait) LANDSCAPE_MARGIN_HORIZONTAL else LANDSCAPE_MARGIN_HORIZONTAL_NONE
 
         listOf(binding.topBar, binding.bottomBar).forEach {
             it.updateLayoutParams<MarginLayoutParams> {
@@ -784,23 +805,29 @@ abstract class CustomExoPlayerView(
             KeyEvent.KEYCODE_SPACE, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE -> {
                 player?.togglePlayPauseState()
             }
+
             KeyEvent.KEYCODE_DPAD_RIGHT, KeyEvent.KEYCODE_MEDIA_FAST_FORWARD -> {
                 forward()
             }
+
             KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_MEDIA_REWIND -> {
                 rewind()
             }
+
             KeyEvent.KEYCODE_N, KeyEvent.KEYCODE_NAVIGATE_NEXT -> {
                 PlayingQueue.navigateNext()
             }
+
             KeyEvent.KEYCODE_P, KeyEvent.KEYCODE_NAVIGATE_PREVIOUS -> {
                 PlayingQueue.navigatePrev()
             }
+
             KeyEvent.KEYCODE_F -> {
                 val fragmentManager = ContextHelper.unwrapActivity(context).supportFragmentManager
                 fragmentManager.fragments.filterIsInstance<PlayerFragment>().firstOrNull()
                     ?.toggleFullscreen()
             }
+
             else -> return false
         }
 
@@ -826,8 +853,6 @@ abstract class CustomExoPlayerView(
 
     open fun minimizeOrExitPlayer() = Unit
 
-    abstract fun getChapters(): List<ChapterSegment>
-
     open fun getWindow(): Window = activity.window
 
     companion object {

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

@@ -31,6 +31,4 @@ class OfflinePlayerView(
         this.chapters = chapters
         setCurrentChapterName()
     }
-
-    override fun getChapters(): List<ChapterSegment> = chapters
 }

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

@@ -16,7 +16,6 @@ import androidx.media3.common.Player
 import androidx.media3.common.util.UnstableApi
 import androidx.media3.exoplayer.trackselection.TrackSelector
 import com.github.libretube.R
-import com.github.libretube.api.obj.ChapterSegment
 import com.github.libretube.constants.IntentData
 import com.github.libretube.constants.PreferenceKeys
 import com.github.libretube.extensions.toID
@@ -281,10 +280,6 @@ class OnlinePlayerView(
         playerOptions?.exitFullscreen()
     }
 
-    override fun getChapters(): List<ChapterSegment> {
-        return playerViewModel?.chapters.orEmpty()
-    }
-
     override fun onPlaybackEvents(player: Player, events: Player.Events) {
         super.onPlaybackEvents(player, events)
         updateDisplayedDuration()