@Override
public synchronized void download(
List<MusicDirectory.Entry> songs, boolean save, boolean autoplay, boolean playNext) {
shufflePlay = false;
int offset = 1;
if (songs.isEmpty()) {
return;
}
if (save) {
for (MusicDirectory.Entry song : songs) {
DownloadFile downloadFile = forSong(song);
downloadFile.pin();
if (!downloadFile.isWorkDone() && !downloadList.contains(downloadFile)) {
downloadList.add(downloadFile);
}
}
} else if (playNext) {
if (autoplay && getCurrentPlayingIndex() >= 0) {
offset = 0;
}
for (MusicDirectory.Entry song : songs) {
DownloadFile downloadFile = new DownloadFile(this, song);
downloadList.add(getCurrentPlayingIndex() + offset, downloadFile);
offset++;
}
} else {
for (MusicDirectory.Entry song : songs) {
DownloadFile downloadFile = new DownloadFile(this, song);
downloadList.add(downloadFile);
}
}
revision++;
updateJukeboxPlaylist();
if (autoplay) {
play(0);
} else {
if (currentPlaying == null) {
currentPlaying = downloadList.get(0);
}
checkDownloads();
}
lifecycleSupport.serializeDownloadQueue();
}
protected synchronized void checkDownloads() {
if (!Util.isExternalStoragePresent() || !lifecycleSupport.isExternalStorageAvailable()) {
return;
}
if (shufflePlay) {
checkShufflePlay();
}
if (jukeboxEnabled || !Util.isNetworkConnected(this)) {
return;
}
if (downloadList.isEmpty()) {
return;
}
// Need to download current playing?
if (currentPlaying != null
&& currentPlaying != currentDownloading
&& !currentPlaying.isCompleteFileAvailable()) {
// Cancel current download, if necessary.
if (currentDownloading != null) {
currentDownloading.cancelDownload();
}
currentDownloading = currentPlaying;
currentDownloading.download();
cleanupCandidates.add(currentDownloading);
}
// Find a suitable target for download.
else if (currentDownloading == null
|| currentDownloading.isWorkDone()
|| currentDownloading.isFailed()) {
int n = size();
if (n == 0) {
return;
}
int preloaded = 0;
int start = currentPlaying == null ? 0 : getCurrentPlayingIndex();
int i = start;
do {
DownloadFile downloadFile = downloadList.get(i);
if (!downloadFile.isWorkDone()) {
if (downloadFile.shouldSave() || preloaded < Util.getPreloadCount(this)) {
currentDownloading = downloadFile;
currentDownloading.download();
cleanupCandidates.add(currentDownloading);
break;
}
} else if (currentPlaying != downloadFile) {
preloaded++;
}
i = (i + 1) % n;
} while (i != start);
}
// Delete obsolete .partial and .complete files.
cleanup();
}