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/*
* Copyright (C) 2012 Andrew Neal
* Copyright (C) 2014 The CyanogenMod Project
* Licensed under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law
* or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package com.cyanogenmod.eleven.loaders;
import android.content.Context;
import android.content.res.Resources;
import android.database.Cursor;
import android.provider.BaseColumns;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio.PlaylistsColumns;
import com.cyanogenmod.eleven.Config.SmartPlaylistType;
import com.cyanogenmod.eleven.model.Playlist;
import com.cyanogenmod.eleven.utils.Lists;
import com.cyanogenmod.eleven.utils.MusicUtils;
import java.util.ArrayList;
import java.util.List;
/**
* Used to query {@link MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI} and
* return the playlists on a user's device.
*
* @author Andrew Neal (andrewdneal@gmail.com)
*/
public class PlaylistLoader extends WrappedAsyncTaskLoader<List<Playlist>> {
/**
* The result
*/
private final ArrayList<Playlist> mPlaylistList = Lists.newArrayList();
/**
* Constructor of <code>PlaylistLoader</code>
*
* @param context The {@link Context} to use
*/
public PlaylistLoader(final Context context) {
super(context);
}
/**
* {@inheritDoc}
*/
@Override
public List<Playlist> loadInBackground() {
// Add the deafult playlits to the adapter
makeDefaultPlaylists();
// Create the Cursor
Cursor cursor = makePlaylistCursor(getContext());
// Gather the data
if (cursor != null && cursor.moveToFirst()) {
do {
// Copy the playlist id
final long id = cursor.getLong(0);
// Copy the playlist name
final String name = cursor.getString(1);
final int songCount = MusicUtils.getSongCountForPlaylist(getContext(), id);
// Create a new playlist
final Playlist playlist = new Playlist(id, name, songCount);
// Add everything up
mPlaylistList.add(playlist);
} while (cursor.moveToNext());
}
// Close the cursor
if (cursor != null) {
cursor.close();
cursor = null;
}
return mPlaylistList;
}
/* Adds the favorites and last added playlists */
private void makeDefaultPlaylists() {
final Resources resources = getContext().getResources();
/* Last added list */
final Playlist lastAdded = new Playlist(SmartPlaylistType.LastAdded.mId,
resources.getString(SmartPlaylistType.LastAdded.mTitleId), -1);
mPlaylistList.add(lastAdded);
/* Recently Played */
final Playlist recentlyPlayed = new Playlist(SmartPlaylistType.RecentlyPlayed.mId,
resources.getString(SmartPlaylistType.RecentlyPlayed.mTitleId), -1);
mPlaylistList.add(recentlyPlayed);
/* Top Tracks */
final Playlist topTracks = new Playlist(SmartPlaylistType.TopTracks.mId,
resources.getString(SmartPlaylistType.TopTracks.mTitleId), -1);
mPlaylistList.add(topTracks);
}
/**
* Creates the {@link Cursor} used to run the query.
*
* @param context The {@link Context} to use.
* @return The {@link Cursor} used to run the playlist query.
*/
public static final Cursor makePlaylistCursor(final Context context) {
return context.getContentResolver().query(MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
new String[] {
/* 0 */
BaseColumns._ID,
/* 1 */
PlaylistsColumns.NAME
}, null, null, MediaStore.Audio.Playlists.DEFAULT_SORT_ORDER);
}
}
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