Add playing indicator to album songs

Add an indicator to album songs that shows if theyre being currently played or not.

app/src/main/java/org/oxycblt/auxio/detail/AlbumDetailFragment.kt

@@ -13,6 +13,7 @@ import org.oxycblt.auxio.R
 import org.oxycblt.auxio.databinding.FragmentAlbumDetailBinding
 import org.oxycblt.auxio.detail.adapters.AlbumSongAdapter
 import org.oxycblt.auxio.music.MusicStore
+import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.playback.state.PlaybackMode
 import org.oxycblt.auxio.ui.disable
@@ -55,6 +56,8 @@ class AlbumDetailFragment : DetailFragment() {
             }
         )
 
+        var lastHolder: AlbumSongAdapter.ViewHolder? = null
+
         // --- UI SETUP ---
 
         binding.lifecycleOwner = this
@@ -126,9 +129,36 @@ class AlbumDetailFragment : DetailFragment() {
             }
         }
 
+        playbackModel.song.observe(viewLifecycleOwner) { song ->
+            if (song != null) {
+                val pos = detailModel.albumSortMode.value!!.getSortedSongList(
+                    detailModel.currentAlbum.value!!.songs
+                ).indexOfFirst { it.id == song.id }
+
+                if (pos != -1) {
+                    binding.albumSongRecycler.post {
+                        lastHolder?.removePlaying()
+
+                        lastHolder = (
+                            binding.albumSongRecycler.getChildViewHolder(
+                                binding.albumSongRecycler.getChildAt(pos)
+                            ) as AlbumSongAdapter.ViewHolder
+                            )
+
+                        lastHolder?.setPlaying(requireContext())
+                    }
+
+                    return@observe
+                } else {
+                    lastHolder?.removePlaying()
+                }
+            }
+
+            lastHolder?.removePlaying()
+        }
+
         playbackModel.navToItem.observe(viewLifecycleOwner) {
             if (it != null) {
-                /*
                 if (it is Song) {
                     // Calculate where the item for the currently played song is, and navigate to there.
                     val pos = detailModel.albumSortMode.value!!.getSortedSongList(
@@ -139,7 +169,7 @@ class AlbumDetailFragment : DetailFragment() {
                         binding.albumSongRecycler.post {
                             // Only scroll after UI creation
                             val y = binding.albumSongRecycler.y +
-                                    binding.albumSongRecycler.getChildAt(pos).y
+                                binding.albumSongRecycler.getChildAt(pos).y
 
                             binding.nestedScroll.scrollTo(0, y.toInt())
                         }
@@ -147,8 +177,6 @@ class AlbumDetailFragment : DetailFragment() {
                         playbackModel.doneWithNavToItem()
                     }
                 }
-                TODO: Re-add scroll if you find a way to implement the playing indicators on song items
-                */
 
                 if (detailModel.currentAlbum.value!!.id == playbackModel.song.value!!.album.id) {
                     playbackModel.doneWithNavToItem()

app/src/main/java/org/oxycblt/auxio/detail/adapters/AlbumSongAdapter.kt

@@ -1,5 +1,6 @@
 package org.oxycblt.auxio.detail.adapters
 
+import android.content.Context
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -8,6 +9,8 @@ import org.oxycblt.auxio.databinding.ItemAlbumSongBinding
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.recycler.DiffCallback
 import org.oxycblt.auxio.recycler.viewholders.BaseViewHolder
+import org.oxycblt.auxio.ui.accent
+import org.oxycblt.auxio.ui.toColor
 
 /**
  * An adapter for displaying the [Song]s of an album.
@@ -30,11 +33,25 @@ class AlbumSongAdapter(
     inner class ViewHolder(
         private val binding: ItemAlbumSongBinding,
     ) : BaseViewHolder<Song>(binding, doOnClick, doOnLongClick) {
+        private val normalColor = binding.songName.currentTextColor
+        private val inactiveColor = binding.songTrack.currentTextColor
 
         override fun onBind(data: Song) {
             binding.song = data
 
             binding.songName.requestLayout()
         }
+
+        fun setPlaying(context: Context) {
+            val accentColor = accent.first.toColor(context)
+
+            binding.songName.setTextColor(accentColor)
+            binding.songTrack.setTextColor(accentColor)
+        }
+
+        fun removePlaying() {
+            binding.songName.setTextColor(normalColor)
+            binding.songTrack.setTextColor(inactiveColor)
+        }
     }
 }

app/src/main/java/org/oxycblt/auxio/playback/state/PlaybackStateManager.kt

@@ -468,8 +468,6 @@ class PlaybackStateManager private constructor() {
             database.writeQueue(queueItems)
         }
 
-        getCommonGenre()
-
         val time = System.currentTimeMillis() - start
 
         Log.d(this::class.simpleName, "Save finished in ${time}ms")