// If song had a CUE and the CUE still exists, the metadata from it will
// be applied here.
PlaylistItemPtr PlaylistBackend::RestoreCueData(
PlaylistItemPtr item, std::shared_ptr<NewSongFromQueryState> state) {
// we need library to run a CueParser; also, this method applies only to
// file-type PlaylistItems
if (item->type() != "File") {
return item;
}
CueParser cue_parser(app_->library_backend());
Song song = item->Metadata();
// we're only interested in .cue songs here
if (!song.has_cue()) {
return item;
}
QString cue_path = song.cue_path();
// if .cue was deleted - reload the song
if (!QFile::exists(cue_path)) {
item->Reload();
return item;
}
SongList song_list;
{
QMutexLocker locker(&state->mutex_);
if (!state->cached_cues_.contains(cue_path)) {
QFile cue(cue_path);
cue.open(QIODevice::ReadOnly);
song_list =
cue_parser.Load(&cue, cue_path, QDir(cue_path.section('/', 0, -2)));
state->cached_cues_[cue_path] = song_list;
} else {
song_list = state->cached_cues_[cue_path];
}
}
for (const Song& from_list : song_list) {
if (from_list.url().toEncoded() == song.url().toEncoded() &&
from_list.beginning_nanosec() == song.beginning_nanosec()) {
// we found a matching section; replace the input
// item with a new one containing CUE metadata
return PlaylistItemPtr(new SongPlaylistItem(from_list));
}
}
// there's no such section in the related .cue -> reload the song
item->Reload();
return item;
}
static void ReloadPlaylistItem(PlaylistItemPtr item) { item->Reload(); }