void LyricsEngine::onTrackMetadataChanged( Meta::TrackPtr track )
{
DEBUG_BLOCK
// Only update if the lyrics have changed.
QString artist = track->artist() ? track->artist()->name() : QString();
if( m_prevLyrics.artist != artist ||
m_prevLyrics.title != track->name() ||
m_prevLyrics.text != track->cachedLyrics() )
update();
}
void LyricsEngine::update()
{
if( m_isUpdateInProgress )
return;
m_isUpdateInProgress = true;
// -- get current title and artist
Meta::TrackPtr currentTrack = The::engineController()->currentTrack();
if( !currentTrack )
{
debug() << "no current track";
m_prevLyrics.clear();
removeAllData( "lyrics" );
setData( "lyrics", "stopped", "stopped" );
m_isUpdateInProgress = false;
return;
}
QString title = currentTrack->name();
QString artist = currentTrack->artist() ? currentTrack->artist()->name() : QString();
// -- clean up title
const QString magnatunePreviewString = QLatin1String( "PREVIEW: buy it at www.magnatune.com" );
if( title.contains(magnatunePreviewString, Qt::CaseSensitive) )
title = title.remove( " (" + magnatunePreviewString + ")" );
if( artist.contains(magnatunePreviewString, Qt::CaseSensitive) )
artist = artist.remove( " (" + magnatunePreviewString + ")" );
if( title.isEmpty() && currentTrack )
{
/* If title is empty, try to use pretty title.
The fact that it often (but not always) has "artist name" together, can be bad,
but at least the user will hopefully get nice suggestions. */
QString prettyTitle = currentTrack->prettyName();
int h = prettyTitle.indexOf( QLatin1Char('-') );
if ( h != -1 )
{
title = prettyTitle.mid( h + 1 ).trimmed();
if( title.contains(magnatunePreviewString, Qt::CaseSensitive) )
title = title.remove( " (" + magnatunePreviewString + ")" );
if( artist.isEmpty() )
{
artist = prettyTitle.mid( 0, h ).trimmed();
if( artist.contains(magnatunePreviewString, Qt::CaseSensitive) )
artist = artist.remove( " (" + magnatunePreviewString + ")" );
}
}
}
LyricsData lyrics = { currentTrack->cachedLyrics(), title, artist, KUrl() };
// Check if the title, the artist and the lyrics are still the same.
if( !lyrics.text.isEmpty() && (lyrics.text == m_prevLyrics.text) )
{
debug() << "nothing changed:" << lyrics.title;
newLyrics( lyrics );
m_isUpdateInProgress = false;
return;
}
// don't rely on caching for streams
const bool cached = !LyricsManager::self()->isEmpty( lyrics.text )
&& !The::engineController()->isStream();
if( cached )
{
newLyrics( lyrics );
}
else
{
// no lyrics, and no lyrics script!
if( !ScriptManager::instance()->lyricsScriptRunning() )
{
debug() << "no lyrics script running";
removeAllData( "lyrics" );
setData( "lyrics", "noscriptrunning", "noscriptrunning" );
disconnect( ScriptManager::instance(), SIGNAL(lyricsScriptStarted()), this, 0 );
connect( ScriptManager::instance(), SIGNAL(lyricsScriptStarted()), SLOT(update()) );
m_isUpdateInProgress = false;
return;
}
// fetch by lyrics script
removeAllData( "lyrics" );
setData( "lyrics", "fetching", "fetching" );
ScriptManager::instance()->notifyFetchLyrics( lyrics.artist, lyrics.title );
}
m_isUpdateInProgress = false;
}