music: simplify playlist decision events

Simplify the 4 stateflows controlling when playlist decision dialogs
must be opened to just one enum.

This is like the detail view, and makes the amount of observers I have
to spin up much smaller.

Eventually, most of even these observer calls will be collapsed into
the menu itself.

app/src/main/java/org/oxycblt/auxio/MainFragment.kt

@@ -62,8 +62,6 @@ import org.oxycblt.auxio.util.unlikelyToBeNull
  * high-level navigation features.
  *
  * @author Alexander Capehart (OxygenCobalt)
- *
- * TODO: Break up the god navigation setup going on here
  */
 @AndroidEntryPoint
 class MainFragment :

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

@@ -46,6 +46,7 @@ import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicMode
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
+import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.music.info.Disc
 import org.oxycblt.auxio.playback.PlaybackViewModel
@@ -124,6 +125,7 @@ class AlbumDetailFragment :
         collectImmediately(detailModel.albumList, ::updateList)
         collect(detailModel.toShow.flow, ::handleShow)
         collectImmediately(selectionModel.selected, ::updateSelection)
+        collect(musicModel.playlistDecision.flow, ::handleDecision)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.artistPickerSong.flow, ::handlePlayFromArtist)
@@ -298,6 +300,36 @@ class AlbumDetailFragment :
         }
     }
 
+    private fun updateSelection(selected: List<Music>) {
+        albumListAdapter.setSelected(selected.toSet())
+
+        val binding = requireBinding()
+        if (selected.isNotEmpty()) {
+            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
+            binding.detailToolbar.setVisible(R.id.detail_selection_toolbar)
+        } else {
+            binding.detailToolbar.setVisible(R.id.detail_normal_toolbar)
+        }
+    }
+
+    private fun handleDecision(decision: PlaylistDecision?) {
+        when (decision) {
+            is PlaylistDecision.Add ->{
+                logD("Adding ${decision.songs.size} songs to a playlist")
+                findNavController().navigateSafe(
+                    AlbumDetailFragmentDirections.addToPlaylist(
+                        decision.songs.map { it.uid }.toTypedArray())
+                )
+                musicModel.playlistDecision.consume()
+            }
+
+            is PlaylistDecision.New, is PlaylistDecision.Rename, is PlaylistDecision.Delete ->
+                error("Unexpected decision $decision")
+
+            null -> {}
+        }
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         albumListAdapter.setPlaying(
             song.takeIf { parent == detailModel.currentAlbum.value }, isPlaying)
@@ -352,16 +384,4 @@ class AlbumDetailFragment :
             }
         }
     }
-
-    private fun updateSelection(selected: List<Music>) {
-        albumListAdapter.setSelected(selected.toSet())
-
-        val binding = requireBinding()
-        if (selected.isNotEmpty()) {
-            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
-            binding.detailToolbar.setVisible(R.id.detail_selection_toolbar)
-        } else {
-            binding.detailToolbar.setVisible(R.id.detail_normal_toolbar)
-        }
-    }
 }

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

@@ -46,6 +46,7 @@ import org.oxycblt.auxio.music.Artist
 import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
+import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.util.collect
@@ -124,11 +125,12 @@ class ArtistDetailFragment :
         collectImmediately(detailModel.currentArtist, ::updateArtist)
         collectImmediately(detailModel.artistList, ::updateList)
         collect(detailModel.toShow.flow, ::handleShow)
+        collectImmediately(selectionModel.selected, ::updateSelection)
+        collect(musicModel.playlistDecision.flow, ::handleDecision)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.artistPickerSong.flow, ::handlePlayFromArtist)
         collect(playbackModel.genrePickerSong.flow, ::handlePlayFromGenre)
-        collectImmediately(selectionModel.selected, ::updateSelection)
     }
 
     override fun onDestroyBinding(binding: FragmentDetailBinding) {
@@ -308,6 +310,36 @@ class ArtistDetailFragment :
         }
     }
 
+    private fun updateSelection(selected: List<Music>) {
+        artistListAdapter.setSelected(selected.toSet())
+
+        val binding = requireBinding()
+        if (selected.isNotEmpty()) {
+            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
+            binding.detailToolbar.setVisible(R.id.detail_selection_toolbar)
+        } else {
+            binding.detailToolbar.setVisible(R.id.detail_normal_toolbar)
+        }
+    }
+
+    private fun handleDecision(decision: PlaylistDecision?) {
+        when (decision) {
+            is PlaylistDecision.Add ->{
+                logD("Adding ${decision.songs.size} songs to a playlist")
+                findNavController().navigateSafe(
+                    ArtistDetailFragmentDirections.addToPlaylist(
+                        decision.songs.map { it.uid }.toTypedArray())
+                )
+                musicModel.playlistDecision.consume()
+            }
+
+            is PlaylistDecision.New, is PlaylistDecision.Rename, is PlaylistDecision.Delete ->
+                error("Unexpected decision $decision")
+
+            null -> {}
+        }
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         val currentArtist = unlikelyToBeNull(detailModel.currentArtist.value)
         val playingItem =
@@ -334,16 +366,4 @@ class ArtistDetailFragment :
         logD("Launching play from genre dialog for $song")
         findNavController().navigateSafe(AlbumDetailFragmentDirections.playFromGenre(song.uid))
     }
-
-    private fun updateSelection(selected: List<Music>) {
-        artistListAdapter.setSelected(selected.toSet())
-
-        val binding = requireBinding()
-        if (selected.isNotEmpty()) {
-            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
-            binding.detailToolbar.setVisible(R.id.detail_selection_toolbar)
-        } else {
-            binding.detailToolbar.setVisible(R.id.detail_normal_toolbar)
-        }
-    }
 }

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

@@ -46,6 +46,7 @@ import org.oxycblt.auxio.music.Genre
 import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
+import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.util.collect
@@ -122,11 +123,12 @@ class GenreDetailFragment :
         collectImmediately(detailModel.currentGenre, ::updatePlaylist)
         collectImmediately(detailModel.genreList, ::updateList)
         collect(detailModel.toShow.flow, ::handleShow)
+        collectImmediately(selectionModel.selected, ::updateSelection)
+        collect(musicModel.playlistDecision.flow, ::handleDecision)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.artistPickerSong.flow, ::handlePlayFromArtist)
         collect(playbackModel.genrePickerSong.flow, ::handlePlayFromGenre)
-        collectImmediately(selectionModel.selected, ::updateSelection)
     }
 
     override fun onDestroyBinding(binding: FragmentDetailBinding) {
@@ -295,6 +297,36 @@ class GenreDetailFragment :
         }
     }
 
+    private fun updateSelection(selected: List<Music>) {
+        genreListAdapter.setSelected(selected.toSet())
+
+        val binding = requireBinding()
+        if (selected.isNotEmpty()) {
+            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
+            binding.detailToolbar.setVisible(R.id.detail_selection_toolbar)
+        } else {
+            binding.detailToolbar.setVisible(R.id.detail_normal_toolbar)
+        }
+    }
+
+    private fun handleDecision(decision: PlaylistDecision?) {
+        when (decision) {
+            is PlaylistDecision.Add ->{
+                logD("Adding ${decision.songs.size} songs to a playlist")
+                findNavController().navigateSafe(
+                    GenreDetailFragmentDirections.addToPlaylist(
+                        decision.songs.map { it.uid }.toTypedArray())
+                )
+                musicModel.playlistDecision.consume()
+            }
+
+            is PlaylistDecision.New, is PlaylistDecision.Rename, is PlaylistDecision.Delete ->
+                error("Unexpected decision $decision")
+
+            null -> {}
+        }
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         val currentGenre = unlikelyToBeNull(detailModel.currentGenre.value)
         val playingItem =
@@ -321,16 +353,4 @@ class GenreDetailFragment :
         logD("Launching play from genre dialog for $song")
         findNavController().navigateSafe(AlbumDetailFragmentDirections.playFromGenre(song.uid))
     }
-
-    private fun updateSelection(selected: List<Music>) {
-        genreListAdapter.setSelected(selected.toSet())
-
-        val binding = requireBinding()
-        if (selected.isNotEmpty()) {
-            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
-            binding.detailToolbar.setVisible(R.id.detail_selection_toolbar)
-        } else {
-            binding.detailToolbar.setVisible(R.id.detail_normal_toolbar)
-        }
-    }
 }

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

@@ -48,6 +48,7 @@ import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.Playlist
+import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.util.collect
@@ -137,11 +138,12 @@ class PlaylistDetailFragment :
         collectImmediately(detailModel.playlistList, ::updateList)
         collectImmediately(detailModel.editedPlaylist, ::updateEditedList)
         collect(detailModel.toShow.flow, ::handleShow)
+        collectImmediately(selectionModel.selected, ::updateSelection)
+        collect(musicModel.playlistDecision.flow, ::handleDecision)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.artistPickerSong.flow, ::handlePlayFromArtist)
         collect(playbackModel.genrePickerSong.flow, ::handlePlayFromGenre)
-        collectImmediately(selectionModel.selected, ::updateSelection)
     }
 
     override fun onStart() {
@@ -342,6 +344,38 @@ class PlaylistDetailFragment :
         }
     }
 
+    private fun updateSelection(selected: List<Music>) {
+        playlistListAdapter.setSelected(selected.toSet())
+
+        val binding = requireBinding()
+        if (selected.isNotEmpty()) {
+            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
+        }
+        updateMultiToolbar()
+    }
+
+    private fun handleDecision(decision: PlaylistDecision?) {
+        if (decision == null) return
+        when (decision) {
+            is PlaylistDecision.Rename -> {
+                logD("Renaming ${decision.playlist}")
+                findNavController().navigateSafe(
+                    PlaylistDetailFragmentDirections.renamePlaylist(decision.playlist.uid)
+                )
+            }
+
+            is PlaylistDecision.Delete -> {
+                logD("Deleting ${decision.playlist}")
+                findNavController().navigateSafe(
+                    PlaylistDetailFragmentDirections.deletePlaylist(decision.playlist.uid)
+                )
+            }
+
+            is PlaylistDecision.Add, is PlaylistDecision.New -> error("Unexpected decision $decision")
+        }
+        musicModel.playlistDecision.consume()
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         // Prefer songs that are playing from this playlist.
         playlistListAdapter.setPlaying(
@@ -359,17 +393,6 @@ class PlaylistDetailFragment :
         logD("Launching play from genre dialog for $song")
         findNavController().navigateSafe(AlbumDetailFragmentDirections.playFromGenre(song.uid))
     }
-
-    private fun updateSelection(selected: List<Music>) {
-        playlistListAdapter.setSelected(selected.toSet())
-
-        val binding = requireBinding()
-        if (selected.isNotEmpty()) {
-            binding.detailSelectionToolbar.title = getString(R.string.fmt_selected, selected.size)
-        }
-        updateMultiToolbar()
-    }
-
     private fun updateMultiToolbar() {
         val id =
             when {

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

@@ -130,6 +130,7 @@ class SongDetailDialog : ViewBindingDialogFragment<DialogSongDetailBinding>() {
         if (show == null) return
         if (show is Show.SongDetails) {
             logD("Navigated to this song")
+            detailModel.toShow.consume()
         } else {
             error("Unexpected show command $show")
         }

app/src/main/java/org/oxycblt/auxio/home/HomeFragment.kt

@@ -65,6 +65,7 @@ import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.NoAudioPermissionException
 import org.oxycblt.auxio.music.NoMusicException
 import org.oxycblt.auxio.music.PERMISSION_READ_AUDIO
+import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.util.collect
@@ -85,9 +86,9 @@ import org.oxycblt.auxio.util.unlikelyToBeNull
 @AndroidEntryPoint
 class HomeFragment :
     SelectionFragment<FragmentHomeBinding>(), AppBarLayout.OnOffsetChangedListener {
-    override val playbackModel: PlaybackViewModel by activityViewModels()
     override val selectionModel: SelectionViewModel by activityViewModels()
     override val musicModel: MusicViewModel by activityViewModels()
+    override val playbackModel: PlaybackViewModel by activityViewModels()
     private val homeModel: HomeViewModel by activityViewModels()
     private val detailModel: DetailViewModel by activityViewModels()
     private var storagePermissionLauncher: ActivityResultLauncher<String>? = null
@@ -171,9 +172,10 @@ class HomeFragment :
         collect(homeModel.recreateTabs.flow, ::handleRecreate)
         collectImmediately(homeModel.currentTabMode, ::updateCurrentTab)
         collectImmediately(homeModel.songsList, homeModel.isFastScrolling, ::updateFab)
-        collectImmediately(musicModel.indexingState, ::updateIndexerState)
-        collect(detailModel.toShow.flow, ::handleShow)
         collectImmediately(selectionModel.selected, ::updateSelection)
+        collectImmediately(musicModel.indexingState, ::updateIndexerState)
+        collect(musicModel.playlistDecision.flow, ::handleDecision)
+        collect(detailModel.toShow.flow, ::handleShow)
     }
 
     override fun onSaveInstanceState(outState: Bundle) {
@@ -479,6 +481,39 @@ class HomeFragment :
         }
     }
 
+    private fun handleDecision(decision: PlaylistDecision?) {
+        if (decision == null) return
+        when (decision) {
+            is PlaylistDecision.New -> {
+                logD("Creating new playlist")
+                findNavController().navigateSafe(
+                    HomeFragmentDirections.newPlaylist(decision.songs.map { it.uid }.toTypedArray()))
+            }
+
+            is PlaylistDecision.Rename -> {
+                logD("Renaming ${decision.playlist}")
+                findNavController().navigateSafe(
+                    HomeFragmentDirections.renamePlaylist(decision.playlist.uid)
+                )
+            }
+
+            is PlaylistDecision.Delete -> {
+                logD("Deleting ${decision.playlist}")
+                findNavController().navigateSafe(
+                    HomeFragmentDirections.deletePlaylist(decision.playlist.uid)
+                )
+            }
+
+            is PlaylistDecision.Add -> {
+                logD("Adding ${decision.songs.size} to a playlist")
+                findNavController().navigateSafe(
+                    HomeFragmentDirections.addToPlaylist(decision.songs.map { it.uid }.toTypedArray())
+                )
+            }
+        }
+        musicModel.playlistDecision.consume()
+    }
+
     private fun updateFab(songs: List<Song>, isFastScrolling: Boolean) {
         val binding = requireBinding()
         // If there are no songs, it's likely that the library has not been loaded, so

app/src/main/java/org/oxycblt/auxio/music/MusicViewModel.kt

@@ -52,23 +52,8 @@ constructor(
     val statistics: StateFlow<Statistics?>
         get() = _statistics
 
-    private val _newPlaylistSongs = MutableEvent<List<Song>>()
+    private val _playlistDecision = MutableEvent<PlaylistDecision>()
-    /** Flag for opening a dialog to create a playlist of the given [Song]s. */
+    val playlistDecision: Event<PlaylistDecision> get() = _playlistDecision
-    val newPlaylistSongs: Event<List<Song>> = _newPlaylistSongs
-
-    private val _playlistToRename = MutableEvent<Playlist?>()
-    /** Flag for opening a dialog to rename the given [Playlist]. */
-    val playlistToRename: Event<Playlist?>
-        get() = _playlistToRename
-
-    private val _playlistToDelete = MutableEvent<Playlist>()
-    /** Flag for opening a dialog to confirm deletion of the given [Playlist]. */
-    val playlistToDelete: Event<Playlist>
-        get() = _playlistToDelete
-
-    private val _songsToAdd = MutableEvent<List<Song>>()
-    /** Flag for opening a dialog to add the given [Song]s to a playlist. */
-    val songsToAdd: Event<List<Song>> = _songsToAdd
 
     init {
         musicRepository.addUpdateListener(this)
@@ -121,7 +106,7 @@ constructor(
             viewModelScope.launch(Dispatchers.IO) { musicRepository.createPlaylist(name, songs) }
         } else {
             logD("Launching creation dialog for ${songs.size} songs")
-            _newPlaylistSongs.put(songs)
+            _playlistDecision.put(PlaylistDecision.New(songs))
         }
     }
 
@@ -137,7 +122,7 @@ constructor(
             viewModelScope.launch(Dispatchers.IO) { musicRepository.renamePlaylist(playlist, name) }
         } else {
             logD("Launching rename dialog for $playlist")
-            _playlistToRename.put(playlist)
+            _playlistDecision.put(PlaylistDecision.Rename(playlist))
         }
     }
 
@@ -154,7 +139,7 @@ constructor(
             viewModelScope.launch(Dispatchers.IO) { musicRepository.deletePlaylist(playlist) }
         } else {
             logD("Launching deletion dialog for $playlist")
-            _playlistToDelete.put(playlist)
+            _playlistDecision.put(PlaylistDecision.Delete(playlist))
         }
     }
 
@@ -214,7 +199,7 @@ constructor(
             viewModelScope.launch(Dispatchers.IO) { musicRepository.addToPlaylist(songs, playlist) }
         } else {
             logD("Launching addition dialog for songs=${songs.size}")
-            _songsToAdd.put(songs)
+            _playlistDecision.put(PlaylistDecision.Add(songs))
         }
     }
 
@@ -235,3 +220,10 @@ constructor(
         val durationMs: Long
     )
 }
+
+sealed interface PlaylistDecision {
+    data class New(val songs: List<Song>) : PlaylistDecision
+    data class Rename(val playlist: Playlist) : PlaylistDecision
+    data class Delete(val playlist: Playlist) : PlaylistDecision
+    data class Add(val songs: List<Song>) : PlaylistDecision
+}

app/src/main/java/org/oxycblt/auxio/search/SearchFragment.kt

@@ -34,8 +34,10 @@ import com.google.android.material.transition.MaterialSharedAxis
 import dagger.hilt.android.AndroidEntryPoint
 import org.oxycblt.auxio.R
 import org.oxycblt.auxio.databinding.FragmentSearchBinding
+import org.oxycblt.auxio.detail.ArtistDetailFragmentDirections
 import org.oxycblt.auxio.detail.DetailViewModel
 import org.oxycblt.auxio.detail.Show
+import org.oxycblt.auxio.home.HomeFragmentDirections
 import org.oxycblt.auxio.list.Divider
 import org.oxycblt.auxio.list.Header
 import org.oxycblt.auxio.list.Item
@@ -48,6 +50,7 @@ import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.Playlist
+import org.oxycblt.auxio.music.PlaylistDecision
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.util.collect
@@ -136,10 +139,11 @@ class SearchFragment : ListFragment<Music, FragmentSearchBinding>() {
         // --- VIEWMODEL SETUP ---
 
         collectImmediately(searchModel.searchResults, ::updateSearchResults)
+        collectImmediately(selectionModel.selected, ::updateSelection)
+        collect(musicModel.playlistDecision.flow, ::handleDecision)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(detailModel.toShow.flow, ::handleShow)
-        collectImmediately(selectionModel.selected, ::updateSelection)
     }
 
     override fun onDestroyBinding(binding: FragmentSearchBinding) {
@@ -200,9 +204,7 @@ class SearchFragment : ListFragment<Music, FragmentSearchBinding>() {
         }
     }
 
-    private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
+
-        searchAdapter.setPlaying(parent ?: song, isPlaying)
-    }
 
     private fun handleShow(show: Show?) {
         when (show) {
@@ -257,6 +259,44 @@ class SearchFragment : ListFragment<Music, FragmentSearchBinding>() {
         hideKeyboard()
     }
 
+
+    private fun handleDecision(decision: PlaylistDecision?) {
+        if (decision == null) return
+        when (decision) {
+            is PlaylistDecision.New -> {
+                logD("Creating new playlist")
+                findNavController().navigateSafe(
+                    HomeFragmentDirections.newPlaylist(decision.songs.map { it.uid }.toTypedArray()))
+            }
+
+            is PlaylistDecision.Rename -> {
+                logD("Renaming ${decision.playlist}")
+                findNavController().navigateSafe(
+                    HomeFragmentDirections.renamePlaylist(decision.playlist.uid)
+                )
+            }
+
+            is PlaylistDecision.Delete -> {
+                logD("Deleting ${decision.playlist}")
+                findNavController().navigateSafe(
+                    SearchFragmentDirections.deletePlaylist(decision.playlist.uid)
+                )
+            }
+
+            is PlaylistDecision.Add -> {
+                logD("Adding ${decision.songs.size} to a playlist")
+                findNavController().navigateSafe(
+                    HomeFragmentDirections.addToPlaylist(decision.songs.map { it.uid }.toTypedArray())
+                )
+            }
+        }
+        musicModel.playlistDecision.consume()
+    }
+
+    private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
+        searchAdapter.setPlaying(parent ?: song, isPlaying)
+    }
+
     private fun updateSelection(selected: List<Music>) {
         searchAdapter.setSelected(selected.toSet())
         val binding = requireBinding()