Merge branch 'develop' into mediastore

ultrasonic/src/main/java/org/moire/ultrasonic/service/CachedMusicService.java

@@ -76,6 +76,7 @@ public class CachedMusicService implements MusicService
 	private final TimeLimitedCache<List<Genre>> cachedGenres = new TimeLimitedCache<>(10 * 3600, TimeUnit.SECONDS);
 
 	private String restUrl;
+	private String cachedMusicFolderId;
 
 	public CachedMusicService(MusicService musicService)
 	{
@@ -284,15 +285,15 @@ public class CachedMusicService implements MusicService
 	}
 
 	@Override
-	public MusicDirectory getAlbumList(String type, int size, int offset, Context context) throws Exception
+	public MusicDirectory getAlbumList(String type, int size, int offset, String musicFolderId, Context context) throws Exception
 	{
-		return musicService.getAlbumList(type, size, offset, context);
+		return musicService.getAlbumList(type, size, offset, musicFolderId, context);
 	}
 
 	@Override
-	public MusicDirectory getAlbumList2(String type, int size, int offset, Context context) throws Exception
+	public MusicDirectory getAlbumList2(String type, int size, int offset, String musicFolderId, Context context) throws Exception
 	{
-		return musicService.getAlbumList2(type, size, offset, context);
+		return musicService.getAlbumList2(type, size, offset, musicFolderId, context);
 	}
 
 	@Override
@@ -370,7 +371,8 @@ public class CachedMusicService implements MusicService
 	private void checkSettingsChanged()
 	{
 		String newUrl = activeServerProvider.getValue().getRestUrl(null);
-		if (!Util.equals(newUrl, restUrl))
+		String newFolderId = activeServerProvider.getValue().getActiveServer().getMusicFolderId();
+		if (!Util.equals(newUrl, restUrl) || !Util.equals(cachedMusicFolderId,newFolderId))
 		{
 			cachedMusicFolders.clear();
 			cachedMusicDirectories.clear();
@@ -382,6 +384,7 @@ public class CachedMusicService implements MusicService
 			cachedArtist.clear();
 			cachedUserInfo.clear();
 			restUrl = newUrl;
+			cachedMusicFolderId = newFolderId;
 		}
 	}
 

ultrasonic/src/main/java/org/moire/ultrasonic/service/MusicService.java

@@ -90,9 +90,9 @@ public interface MusicService
 
 	void scrobble(String id, boolean submission, Context context) throws Exception;
 
-	MusicDirectory getAlbumList(String type, int size, int offset, Context context) throws Exception;
+	MusicDirectory getAlbumList(String type, int size, int offset, String musicFolderId, Context context) throws Exception;
 
-	MusicDirectory getAlbumList2(String type, int size, int offset, Context context) throws Exception;
+	MusicDirectory getAlbumList2(String type, int size, int offset, String musicFolderId, Context context) throws Exception;
 
 	MusicDirectory getRandomSongs(int size, Context context) throws Exception;
 

ultrasonic/src/main/java/org/moire/ultrasonic/service/OfflineMusicService.java

@@ -702,7 +702,7 @@ public class OfflineMusicService implements MusicService
 	}
 
 	@Override
-	public MusicDirectory getAlbumList(String type, int size, int offset, Context context) throws Exception
+	public MusicDirectory getAlbumList(String type, int size, int offset, String musicFolderId, Context context) throws Exception
 	{
 		throw new OfflineException("Album lists not available in offline mode");
 	}
@@ -809,7 +809,7 @@ public class OfflineMusicService implements MusicService
 	}
 
 	@Override
-	public MusicDirectory getAlbumList2(String type, int size, int offset, Context context) {
+	public MusicDirectory getAlbumList2(String type, int size, int offset, String musicFolderId, Context context) {
 		Timber.w("OfflineMusicService.getAlbumList2 was called but it isn't available");
 		return null;
 	}

ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/ArtistRowAdapter.kt

@@ -24,7 +24,6 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
-import android.widget.LinearLayout
 import android.widget.PopupMenu
 import android.widget.RelativeLayout
 import android.widget.TextView
@@ -37,17 +36,16 @@ import org.moire.ultrasonic.domain.Artist
 import org.moire.ultrasonic.domain.MusicDirectory
 import org.moire.ultrasonic.util.ImageLoader
 import org.moire.ultrasonic.util.Util
+import org.moire.ultrasonic.view.SelectMusicFolderView
 
 /**
  * Creates a Row in a RecyclerView which contains the details of an Artist
  */
 class ArtistRowAdapter(
     private var artistList: List<Artist>,
-    private var folderName: String,
+    private var selectFolderHeader: SelectMusicFolderView?,
-    private var shouldShowHeader: Boolean,
     val onArtistClick: (Artist) -> Unit,
     val onContextMenuClick: (MenuItem, Artist) -> Boolean,
-    val onFolderClick: (view: View) -> Unit,
     private val imageLoader: ImageLoader
 ) : RecyclerView.Adapter<RecyclerView.ViewHolder>(), SectionedAdapter {
 
@@ -59,14 +57,6 @@ class ArtistRowAdapter(
         notifyDataSetChanged()
     }
 
-    /**
-     * Sets the name of the folder to be displayed n the Header (first) row
-     */
-    fun setFolderName(name: String) {
-        folderName = name
-        notifyDataSetChanged()
-    }
-
     /**
      * Holds the view properties of an Artist row
      */
@@ -80,16 +70,6 @@ class ArtistRowAdapter(
         var coverArtId: String? = null
     }
 
-    /**
-     * Holds the view properties of the Header row
-     */
-    class HeaderViewHolder(
-        itemView: View
-    ) : RecyclerView.ViewHolder(itemView) {
-        var folderName: TextView = itemView.findViewById(R.id.select_artist_folder_2)
-        var layout: LinearLayout = itemView.findViewById(R.id.select_artist_folder)
-    }
-
     override fun onCreateViewHolder(
         parent: ViewGroup,
         viewType: Int
@@ -99,9 +79,7 @@ class ArtistRowAdapter(
                 .inflate(R.layout.artist_list_item, parent, false)
             return ArtistViewHolder(row)
         }
-        val header = LayoutInflater.from(parent.context)
+        return selectFolderHeader!!
-            .inflate(R.layout.select_artist_header, parent, false)
-        return HeaderViewHolder(header)
     }
 
     override fun onViewRecycled(holder: RecyclerView.ViewHolder) {
@@ -113,7 +91,7 @@ class ArtistRowAdapter(
 
     override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
         if (holder is ArtistViewHolder) {
-            val listPosition = if (shouldShowHeader) position - 1 else position
+            val listPosition = if (selectFolderHeader != null) position - 1 else position
             holder.textView.text = artistList[listPosition].name
             holder.section.text = getSectionForArtist(listPosition)
             holder.layout.setOnClickListener { onArtistClick(artistList[listPosition]) }
@@ -130,20 +108,20 @@ class ArtistRowAdapter(
             } else {
                 holder.coverArt.visibility = View.GONE
             }
-        } else if (holder is HeaderViewHolder) {
-            holder.folderName.text = folderName
-            holder.layout.setOnClickListener { onFolderClick(holder.layout) }
         }
     }
 
-    override fun getItemCount() = if (shouldShowHeader) artistList.size + 1 else artistList.size
+    override fun getItemCount() = if (selectFolderHeader != null)
+        artistList.size + 1
+    else
+        artistList.size
 
     override fun getItemViewType(position: Int): Int {
-        return if (position == 0 && shouldShowHeader) TYPE_HEADER else TYPE_ITEM
+        return if (position == 0 && selectFolderHeader != null) TYPE_HEADER else TYPE_ITEM
     }
 
     override fun getSectionName(position: Int): String {
-        var listPosition = if (shouldShowHeader) position - 1 else position
+        var listPosition = if (selectFolderHeader != null) position - 1 else position
 
         // Show the first artist's initial in the popup when the list is
         // scrolled up to the "Select Folder" row

ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/SelectAlbumFragment.kt

@@ -1,6 +1,8 @@
 package org.moire.ultrasonic.fragment
 
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.view.ContextMenu
 import android.view.ContextMenu.ContextMenuInfo
 import android.view.LayoutInflater
@@ -16,6 +18,9 @@ import android.widget.ImageView
 import android.widget.ListView
 import android.widget.TextView
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Observer
+import androidx.lifecycle.viewModelScope
 import androidx.navigation.Navigation
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout.OnRefreshListener
@@ -23,14 +28,23 @@ import java.security.SecureRandom
 import java.util.Collections
 import java.util.LinkedList
 import java.util.Random
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.koin.android.ext.android.inject
+import org.koin.android.viewmodel.ext.android.viewModel
 import org.moire.ultrasonic.R
+import org.moire.ultrasonic.api.subsonic.models.AlbumListType
+import org.moire.ultrasonic.data.ActiveServerProvider
 import org.moire.ultrasonic.data.ActiveServerProvider.Companion.isOffline
 import org.moire.ultrasonic.domain.MusicDirectory
+import org.moire.ultrasonic.domain.MusicFolder
 import org.moire.ultrasonic.fragment.FragmentTitle.Companion.getTitle
 import org.moire.ultrasonic.fragment.FragmentTitle.Companion.setTitle
+import org.moire.ultrasonic.service.CommunicationErrorHandler
 import org.moire.ultrasonic.service.MediaPlayerController
 import org.moire.ultrasonic.service.MusicService
+import org.moire.ultrasonic.service.MusicServiceFactory
 import org.moire.ultrasonic.service.MusicServiceFactory.getMusicService
 import org.moire.ultrasonic.subsonic.DownloadHandler
 import org.moire.ultrasonic.subsonic.ImageLoaderProvider
@@ -45,6 +59,7 @@ import org.moire.ultrasonic.util.FragmentBackgroundTask
 import org.moire.ultrasonic.util.Util
 import org.moire.ultrasonic.view.AlbumView
 import org.moire.ultrasonic.view.EntryAdapter
+import org.moire.ultrasonic.view.SelectMusicFolderView
 import org.moire.ultrasonic.view.SongView
 import timber.log.Timber
 
@@ -57,8 +72,9 @@ class SelectAlbumFragment : Fragment() {
     private var refreshAlbumListView: SwipeRefreshLayout? = null
     private var albumListView: ListView? = null
     private var header: View? = null
+    private var selectFolderHeader: SelectMusicFolderView? = null
     private var albumButtons: View? = null
-    private var emptyView: View? = null
+    private var emptyView: TextView? = null
     private var selectButton: ImageView? = null
     private var playNowButton: ImageView? = null
     private var playNextButton: ImageView? = null
@@ -73,7 +89,9 @@ class SelectAlbumFragment : Fragment() {
     private var playAllButton: MenuItem? = null
     private var shareButton: MenuItem? = null
     private var showHeader = true
+    private var showSelectFolderHeader = false
     private val random: Random = SecureRandom()
+    private val musicFolders: MutableLiveData<List<MusicFolder>> = MutableLiveData()
 
     private val mediaPlayerController: MediaPlayerController by inject()
     private val videoPlayer: VideoPlayer by inject()
@@ -82,6 +100,8 @@ class SelectAlbumFragment : Fragment() {
     private val imageLoaderProvider: ImageLoaderProvider by inject()
     private val shareHandler: ShareHandler by inject()
     private var cancellationToken: CancellationToken? = null
+    private val activeServerProvider: ActiveServerProvider by inject()
+    private val serverSettingsModel: ServerSettingsModel by viewModel()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         Util.applyTheme(this.context)
@@ -117,6 +137,29 @@ class SelectAlbumFragment : Fragment() {
             false
         )
 
+        selectFolderHeader = SelectMusicFolderView(
+            requireContext(), view as ViewGroup,
+            { selectedFolderId ->
+                if (!ActiveServerProvider.isOffline(context)) {
+                    val currentSetting = activeServerProvider.getActiveServer()
+                    currentSetting.musicFolderId = selectedFolderId
+                    serverSettingsModel.updateItem(currentSetting)
+                }
+                this.updateDisplay(true)
+            }
+        )
+        musicFolders.observe(
+            viewLifecycleOwner,
+            Observer { changedFolders ->
+                if (changedFolders != null) {
+                    selectFolderHeader!!.setData(
+                        activeServerProvider.getActiveServer().musicFolderId,
+                        changedFolders
+                    )
+                }
+            }
+        )
+
         albumListView!!.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE)
         albumListView!!.setOnItemClickListener(
             OnItemClickListener
@@ -174,7 +217,7 @@ class SelectAlbumFragment : Fragment() {
         downloadButton = view.findViewById(R.id.select_album_download)
         deleteButton = view.findViewById(R.id.select_album_delete)
         moreButton = view.findViewById(R.id.select_album_more)
-        emptyView = view.findViewById(R.id.select_album_empty)
+        emptyView = TextView(requireContext())
 
         selectButton!!.setOnClickListener(
             View.OnClickListener
@@ -269,6 +312,8 @@ class SelectAlbumFragment : Fragment() {
             Constants.INTENT_EXTRA_NAME_ALBUM_LIST_OFFSET, 0
         )
 
+        backgroundLoadMusicFolders(refresh)
+
         if (playlistId != null) {
             getPlaylist(playlistId, playlistName)
         } else if (podcastChannelId != null) {
@@ -298,6 +343,29 @@ class SelectAlbumFragment : Fragment() {
         }
     }
 
+    private fun backgroundLoadMusicFolders(refresh: Boolean) {
+        serverSettingsModel.viewModelScope.launch {
+            refreshAlbumListView!!.isRefreshing = true
+            loadMusicFolders(refresh)
+            refreshAlbumListView!!.isRefreshing = false
+        }
+    }
+
+    private suspend fun loadMusicFolders(refresh: Boolean) {
+        withContext(Dispatchers.IO) {
+            if (!isOffline(context)) {
+                val musicService = MusicServiceFactory.getMusicService(requireContext())
+                try {
+                    musicFolders.postValue(musicService.getMusicFolders(refresh, context))
+                } catch (exception: Exception) {
+                    Handler(Looper.getMainLooper()).post {
+                        CommunicationErrorHandler.handleError(exception, requireContext())
+                    }
+                }
+            }
+        }
+    }
+
     override fun onCreateContextMenu(menu: ContextMenu, view: View, menuInfo: ContextMenuInfo?) {
         super.onCreateContextMenu(menu, view, menuInfo)
         val info = menuInfo as AdapterContextMenuInfo?
@@ -735,6 +803,11 @@ class SelectAlbumFragment : Fragment() {
     private fun getAlbumList(albumListType: String, albumListTitle: Int, size: Int, offset: Int) {
 
         showHeader = false
+        showSelectFolderHeader = !isOffline(context) && !Util.getShouldUseId3Tags(context) &&
+            (
+                (albumListType == AlbumListType.SORTED_BY_NAME.toString()) ||
+                    (albumListType == AlbumListType.SORTED_BY_ARTIST.toString())
+                )
 
         setTitle(this, albumListTitle)
         // setActionBarSubtitle(albumListTitle);
@@ -747,10 +820,15 @@ class SelectAlbumFragment : Fragment() {
             }
 
             override fun load(service: MusicService): MusicDirectory {
+                val musicFolderId = if (showSelectFolderHeader) {
+                    this@SelectAlbumFragment.activeServerProvider.getActiveServer().musicFolderId
+                } else {
+                    null
+                }
                 return if (Util.getShouldUseId3Tags(context))
-                    service.getAlbumList2(albumListType, size, offset, context)
+                    service.getAlbumList2(albumListType, size, offset, musicFolderId, context)
                 else
-                    service.getAlbumList(albumListType, size, offset, context)
+                    service.getAlbumList(albumListType, size, offset, musicFolderId, context)
             }
 
             override fun done(result: Pair<MusicDirectory, Boolean>) {
@@ -1012,6 +1090,12 @@ class SelectAlbumFragment : Fragment() {
                     }
                 }
             } else {
+                if (showSelectFolderHeader) {
+                    if (albumListView!!.headerViewsCount == 0) {
+                        albumListView!!.addHeaderView(selectFolderHeader!!.itemView, null, false)
+                    }
+                }
+
                 pinButton!!.visibility = View.GONE
                 unpinButton!!.visibility = View.GONE
                 downloadButton!!.visibility = View.GONE
@@ -1034,7 +1118,12 @@ class SelectAlbumFragment : Fragment() {
             playAllButtonVisible = !(isAlbumList || entries.isEmpty()) && !allVideos
             shareButtonVisible = !isOffline(context) && songCount > 0
 
-            emptyView!!.visibility = if (entries.isEmpty()) View.VISIBLE else View.GONE
+            albumListView!!.removeHeaderView(emptyView!!)
+            if (entries.isEmpty()) {
+                emptyView!!.text = "No Media Found"
+                emptyView!!.setPadding(10, 10, 10, 10)
+                albumListView!!.addHeaderView(emptyView, null, false)
+            }
 
             if (playAllButton != null) {
                 playAllButton!!.isVisible = playAllButtonVisible

ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/SelectArtistFragment.kt

@@ -5,7 +5,6 @@ import android.view.LayoutInflater
 import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
-import android.widget.PopupMenu
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
 import androidx.navigation.fragment.findNavController
@@ -17,12 +16,12 @@ import org.koin.android.viewmodel.ext.android.viewModel
 import org.moire.ultrasonic.R
 import org.moire.ultrasonic.data.ActiveServerProvider
 import org.moire.ultrasonic.domain.Artist
-import org.moire.ultrasonic.domain.MusicFolder
 import org.moire.ultrasonic.fragment.FragmentTitle.Companion.setTitle
 import org.moire.ultrasonic.subsonic.DownloadHandler
 import org.moire.ultrasonic.subsonic.ImageLoaderProvider
 import org.moire.ultrasonic.util.Constants
 import org.moire.ultrasonic.util.Util
+import org.moire.ultrasonic.view.SelectMusicFolderView
 
 /**
  * Displays the list of Artists from the media library
@@ -36,9 +35,9 @@ class SelectArtistFragment : Fragment() {
 
     private var refreshArtistListView: SwipeRefreshLayout? = null
     private var artistListView: RecyclerView? = null
-    private var musicFolders: List<MusicFolder>? = null
     private lateinit var viewManager: RecyclerView.LayoutManager
     private lateinit var viewAdapter: ArtistRowAdapter
+    private var selectFolderHeader: SelectMusicFolderView? = null
 
     @Override
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -60,10 +59,22 @@ class SelectArtistFragment : Fragment() {
             artistListModel.refresh(refreshArtistListView!!)
         }
 
-        val shouldShowHeader = (
+        if (!ActiveServerProvider.isOffline(this.context) &&
-            !ActiveServerProvider.isOffline(this.context) &&
+            !Util.getShouldUseId3Tags(this.context)
-                !Util.getShouldUseId3Tags(this.context)
+        ) {
+            selectFolderHeader = SelectMusicFolderView(
+                requireContext(), view as ViewGroup,
+                { selectedFolderId ->
+                    if (!ActiveServerProvider.isOffline(context)) {
+                        val currentSetting = activeServerProvider.getActiveServer()
+                        currentSetting.musicFolderId = selectedFolderId
+                        serverSettingsModel.updateItem(currentSetting)
+                    }
+                    viewAdapter.notifyDataSetChanged()
+                    artistListModel.refresh(refreshArtistListView!!)
+                }
             )
+        }
 
         val title = arguments?.getString(Constants.INTENT_EXTRA_NAME_ALBUM_LIST_TITLE)
 
@@ -78,8 +89,6 @@ class SelectArtistFragment : Fragment() {
             setTitle(this, title)
         }
 
-        musicFolders = null
-
         val refresh = arguments?.getBoolean(Constants.INTENT_EXTRA_NAME_REFRESH) ?: false
 
         artistListModel.getMusicFolders()
@@ -87,8 +96,11 @@ class SelectArtistFragment : Fragment() {
                 viewLifecycleOwner,
                 Observer { changedFolders ->
                     if (changedFolders != null) {
-                        musicFolders = changedFolders
+                        viewAdapter.notifyDataSetChanged()
-                        viewAdapter.setFolderName(getMusicFolderName(changedFolders))
+                        selectFolderHeader!!.setData(
+                            activeServerProvider.getActiveServer().musicFolderId,
+                            changedFolders
+                        )
                     }
                 }
             )
@@ -101,11 +113,9 @@ class SelectArtistFragment : Fragment() {
         viewManager = LinearLayoutManager(this.context)
         viewAdapter = ArtistRowAdapter(
             artists.value ?: listOf(),
-            getText(R.string.select_artist_all_folders).toString(),
+            selectFolderHeader,
-            shouldShowHeader,
             { artist -> onItemClick(artist) },
             { menuItem, artist -> onArtistMenuItemSelected(menuItem, artist) },
-            { onFolderClick(it) },
             imageLoaderProvider.getImageLoader()
         )
 
@@ -117,18 +127,6 @@ class SelectArtistFragment : Fragment() {
         super.onViewCreated(view, savedInstanceState)
     }
 
-    private fun getMusicFolderName(musicFolders: List<MusicFolder>): String {
-        val musicFolderId = activeServerProvider.getActiveServer().musicFolderId
-        if (musicFolderId != null && musicFolderId != "") {
-            for ((id, name) in musicFolders) {
-                if (id == musicFolderId) {
-                    return name
-                }
-            }
-        }
-        return getText(R.string.select_artist_all_folders).toString()
-    }
-
     private fun onItemClick(artist: Artist) {
         val bundle = Bundle()
         bundle.putString(Constants.INTENT_EXTRA_NAME_ID, artist.id)
@@ -138,31 +136,6 @@ class SelectArtistFragment : Fragment() {
         findNavController().navigate(R.id.selectArtistToSelectAlbum, bundle)
     }
 
-    private fun onFolderClick(view: View) {
-        val popup = PopupMenu(this.context, view)
-
-        val musicFolderId = activeServerProvider.getActiveServer().musicFolderId
-        var menuItem = popup.menu.add(
-            MENU_GROUP_MUSIC_FOLDER, -1, 0, R.string.select_artist_all_folders
-        )
-        if (musicFolderId == null || musicFolderId.isEmpty()) {
-            menuItem.isChecked = true
-        }
-        if (musicFolders != null) {
-            for (i in musicFolders!!.indices) {
-                val (id, name) = musicFolders!![i]
-                menuItem = popup.menu.add(MENU_GROUP_MUSIC_FOLDER, i, i + 1, name)
-                if (id == musicFolderId) {
-                    menuItem.isChecked = true
-                }
-            }
-        }
-        popup.menu.setGroupCheckable(MENU_GROUP_MUSIC_FOLDER, true, true)
-
-        popup.setOnMenuItemClickListener { item -> onFolderMenuItemSelected(item) }
-        popup.show()
-    }
-
     private fun onArtistMenuItemSelected(menuItem: MenuItem, artist: Artist): Boolean {
         when (menuItem.itemId) {
             R.id.artist_menu_play_now ->
@@ -246,23 +219,4 @@ class SelectArtistFragment : Fragment() {
         }
         return true
     }
-
-    private fun onFolderMenuItemSelected(menuItem: MenuItem): Boolean {
-        val selectedFolder = if (menuItem.itemId == -1) null else musicFolders!![menuItem.itemId]
-        val musicFolderId = selectedFolder?.id
-        val musicFolderName = selectedFolder?.name
-            ?: getString(R.string.select_artist_all_folders)
-        if (!ActiveServerProvider.isOffline(this.context)) {
-            val currentSetting = activeServerProvider.getActiveServer()
-            currentSetting.musicFolderId = musicFolderId
-            serverSettingsModel.updateItem(currentSetting)
-        }
-        viewAdapter.setFolderName(musicFolderName)
-        artistListModel.refresh(refreshArtistListView!!)
-        return true
-    }
-
-    companion object {
-        private const val MENU_GROUP_MUSIC_FOLDER = 10
-    }
 }

ultrasonic/src/main/kotlin/org/moire/ultrasonic/service/RESTMusicService.kt

@@ -114,7 +114,9 @@ open class RESTMusicService(
         refresh: Boolean,
         context: Context
     ): Indexes {
-        val cachedIndexes = fileStorage.load(INDEXES_STORAGE_NAME, getIndexesSerializer())
+        val indexName = INDEXES_STORAGE_NAME + (musicFolderId ?: "")
+
+        val cachedIndexes = fileStorage.load(indexName, getIndexesSerializer())
         if (cachedIndexes != null && !refresh) return cachedIndexes
 
         val response = responseChecker.callWithResponseCheck { api ->
@@ -122,7 +124,7 @@ open class RESTMusicService(
         }
 
         val indexes = response.body()!!.indexes.toDomainEntity()
-        fileStorage.store(INDEXES_STORAGE_NAME, indexes, getIndexesSerializer())
+        fileStorage.store(indexName, indexes, getIndexesSerializer())
         return indexes
     }
 
@@ -445,10 +447,11 @@ open class RESTMusicService(
         type: String,
         size: Int,
         offset: Int,
+        musicFolderId: String?,
         context: Context
     ): MusicDirectory {
         val response = responseChecker.callWithResponseCheck { api ->
-            api.getAlbumList(fromName(type), size, offset, null, null, null, null)
+            api.getAlbumList(fromName(type), size, offset, null, null, null, musicFolderId)
                 .execute()
         }
 
@@ -464,6 +467,7 @@ open class RESTMusicService(
         type: String,
         size: Int,
         offset: Int,
+        musicFolderId: String?,
         context: Context
     ): MusicDirectory {
         val response = responseChecker.callWithResponseCheck { api ->
@@ -474,7 +478,7 @@ open class RESTMusicService(
                 null,
                 null,
                 null,
-                null
+                musicFolderId
             ).execute()
         }
 
@@ -936,6 +940,7 @@ open class RESTMusicService(
     companion object {
         private const val MUSIC_FOLDER_STORAGE_NAME = "music_folder"
         private const val INDEXES_STORAGE_NAME = "indexes"
+        private const val INDEXES_FOLDER_STORAGE_NAME = "indexes_folder"
         private const val ARTISTS_STORAGE_NAME = "artists"
     }
 }

ultrasonic/src/main/kotlin/org/moire/ultrasonic/view/SelectMusicFolderView.kt

@@ -0,0 +1,89 @@
+package org.moire.ultrasonic.view
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.MenuItem
+import android.view.ViewGroup
+import android.widget.LinearLayout
+import android.widget.PopupMenu
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import org.moire.ultrasonic.R
+import org.moire.ultrasonic.domain.MusicFolder
+
+/**
+ * This little view shows the currently selected Folder (or catalog) on the music server.
+ * When clicked it will drop down a list of all available Folders and allow you to
+ * select one. The intended usage is to supply a filter to lists of artists, albums, etc
+ */
+class SelectMusicFolderView(
+    private val context: Context,
+    root: ViewGroup,
+    private val onUpdate: (String?) -> Unit
+) : RecyclerView.ViewHolder(
+    LayoutInflater.from(context).inflate(
+        R.layout.select_folder_header, root, false
+    )
+) {
+    private var musicFolders: List<MusicFolder> = mutableListOf<MusicFolder>()
+    private var selectedFolderId: String? = null
+    private val folderName: TextView = itemView.findViewById(R.id.select_folder_name)
+    private val layout: LinearLayout = itemView.findViewById(R.id.select_folder_header)
+    private val MENU_GROUP_MUSIC_FOLDER = 10
+
+    init {
+        folderName.text = context.getString(R.string.select_artist_all_folders)
+        layout.setOnClickListener { onFolderClick() }
+    }
+
+    fun setData(selectedId: String?, folders: List<MusicFolder>) {
+        selectedFolderId = selectedId
+        musicFolders = folders
+        if (selectedFolderId != null) {
+            for ((id, name) in musicFolders) {
+                if (id == selectedFolderId) {
+                    folderName.text = name
+                    break
+                }
+            }
+        } else {
+            folderName.text = context.getString(R.string.select_artist_all_folders)
+        }
+    }
+
+    private fun onFolderClick() {
+        val popup = PopupMenu(context, layout)
+
+        var menuItem = popup.menu.add(
+            MENU_GROUP_MUSIC_FOLDER, -1, 0, R.string.select_artist_all_folders
+        )
+        if (selectedFolderId == null || selectedFolderId!!.isEmpty()) {
+            menuItem.isChecked = true
+        }
+        musicFolders.forEachIndexed { i, musicFolder ->
+            val (id, name) = musicFolder
+            menuItem = popup.menu.add(MENU_GROUP_MUSIC_FOLDER, i, i + 1, name)
+            if (id == selectedFolderId) {
+                menuItem.isChecked = true
+            }
+        }
+
+        popup.menu.setGroupCheckable(MENU_GROUP_MUSIC_FOLDER, true, true)
+
+        popup.setOnMenuItemClickListener { item -> onFolderMenuItemSelected(item) }
+        popup.show()
+    }
+
+    private fun onFolderMenuItemSelected(menuItem: MenuItem): Boolean {
+        val selectedFolder = if (menuItem.itemId == -1) null else musicFolders[menuItem.itemId]
+        val musicFolderName = selectedFolder?.name
+            ?: context.getString(R.string.select_artist_all_folders)
+        selectedFolderId = selectedFolder?.id
+
+        menuItem.isChecked = true
+        folderName.text = musicFolderName
+        onUpdate(selectedFolderId)
+
+        return true
+    }
+}

ultrasonic/src/main/res/layout/select_folder_header.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
-    a:id="@+id/select_artist_folder"
+    a:id="@+id/select_folder_header"
     a:layout_width="fill_parent"
     a:layout_height="wrap_content"
     a:minHeight="?android:attr/listPreferredItemHeight"
@@ -24,7 +24,7 @@
         a:orientation="vertical" >
 
         <TextView
-            a:id="@+id/select_artist_folder_1"
+            a:id="@+id/select_folder_title"
             a:layout_width="fill_parent"
             a:layout_height="wrap_content"
             a:layout_marginLeft="10dip"
@@ -33,7 +33,7 @@
             a:textAppearance="?android:attr/textAppearanceLarge" />
 
         <TextView
-            a:id="@+id/select_artist_folder_2"
+            a:id="@+id/select_folder_name"
             a:layout_width="fill_parent"
             a:layout_height="wrap_content"
             a:layout_marginLeft="10dip"