public void updated(final Instance instance) {
if (!Player.Slides.PLAYLIST.equals(listActivity.getCurrSlide())) {
return;
}
Instance instanceToAdd =
instance.accept(
new InstanceVisitor<Instance>() {
public Instance visit(Track track) {
if (getFilter().accept(new MatchFilterVisitor<Track, Tables.Tracks>(track))) {
switch (currMode) {
case Album:
return track.GetAlbum() == AlbumDigest.NO_ALBUM ? track : track.GetAlbum();
case Artist:
return track.GetArtist() == ArtistDigest.NO_ARTIST
? track
: track.GetArtist();
case Genre:
return track.GetGenre() == GenreDigest.NO_GENRE ? track : track.GetGenre();
case Track:
return track;
case Dir:
return track;
default:
throw new RuntimeException(currMode.name() + " not expexted here");
}
}
return null;
}
public Instance visit(SongDigest track) {
throw new RuntimeException("not supported yet");
}
public Instance visit(Album album) {
throw new RuntimeException("not supported yet");
}
public Instance visit(GenreDigest genre) {
throw new RuntimeException("not supported yet");
}
public Instance visit(ArtistDigest artist) {
throw new RuntimeException("not supported yet");
}
public Instance visit(FSobject dir) {
return getDirFilter().accept(new MatchFilterVisitor<FSobject, Tables.Dirs>(dir))
&& Mode.Dir.equals(currMode)
? dir
: null;
}
});
if (instanceToAdd != null) {
listAdapter.add(instanceToAdd);
}
}
/**
* @param selection
* @return null if no track was selected, track if trak was selected
*/
public Track choose(Instance selection) {
return selection.accept(
new InstanceVisitor<Track>() {
public Track visit(Track track) {
return track;
}
public Track visit(SongDigest track) {
Filter<Tables.SongsReadable> trackFilter =
new FieldFilter<Tables.SongsReadable, Track, String>(
Tables.SongsReadable.TITLE, Operator.EQ, track.getSongName());
return database
.getTracks(new FilterSet<Tables.Tracks>(getFilter(), trackFilter))
.iterator()
.next();
}
public Track visit(Album album) {
Filter<Tables.AlbumsReadable> filter =
new FieldFilter<Tables.AlbumsReadable, Track, String>(
Tables.AlbumsReadable.ALBUM, Operator.EQ, album.getAlbumId());
change(Mode.Track, filter, false);
return null;
}
public Track visit(GenreDigest genre) {
Filter<Tables.GenresReadable> filter =
new FieldFilter<Tables.GenresReadable, Track, String>(
Tables.GenresReadable.GENRE, Operator.EQ, genre.getGenreId());
change(Mode.Artist, filter, false);
return null;
}
public Track visit(ArtistDigest artist) {
Filter<Tables.ArtistsReadable> filter =
new FieldFilter<Tables.ArtistsReadable, Track, String>(
Tables.ArtistsReadable.ARTIST, Operator.EQ, artist.getArtistId());
change(Mode.Album, filter, false);
return null;
}
public Track visit(FSobject FSobject) {
Filter<Tables.FsObjects> filter =
new DirFilter(Operator.LIKE, FSobject.getFullPath() + "/%");
change(Mode.Dir, filter, true);
return null;
}
});
}