Disable scrobble love button when playqueue is empty.

mpd/mpdconnection.cpp

@@ -971,6 +971,12 @@ void MPDConnection::playListInfo()
         }
         emit cantataStreams(cStreams, false);
         emit playlistUpdated(songs);
+        Response status=sendCommand("status");
+        if (status.ok) {
+            MPDStatusValues sv=MPDParseUtils::parseStatus(status.data);
+            lastUpdatePlayQueueVersion=lastStatusPlayQueueVersion=sv.playlist;
+            emit statusUpdated(sv);;
+        }
     }
 }
 

scrobbling/scrobbler.cpp

@@ -190,6 +190,7 @@ Scrobbler::Scrobbler()
     loadSettings();
     connect(this, SIGNAL(clientMessage(QString,QString,QString)), MPDConnection::self(), SLOT(sendClientMessage(QString,QString,QString)));
     connect(MPDConnection::self(), SIGNAL(clientMessageFailed(QString,QString)), SLOT(clientMessageFailed(QString,QString)));
+    connect(MPDConnection::self(), SIGNAL(statusUpdated(MPDStatusValues)), this, SLOT(mpdStatusUpdated(MPDStatusValues)));
 }
 
 Scrobbler::~Scrobbler()
@@ -707,6 +708,14 @@ void Scrobbler::mpdStateUpdated()
     }
 }
 
+void Scrobbler::mpdStatusUpdated(const MPDStatusValues &vals)
+{
+    if (!vals.playlistLength) {
+        currentSong.clear();
+        emit songChanged(false);
+    }
+}
+
 void Scrobbler::clientMessageFailed(const QString &client, const QString &msg)
 {
     if (loveSent && client==scrobblerUrl() && msg==QLatin1String("love")) {

scrobbling/scrobbler.h

@@ -40,6 +40,7 @@ class QTimer;
 class QNetworkReply;
 class PausableTimer;
 class Song;
+struct MPDStatusValues;
 
 class Scrobbler : public QObject
 {
@@ -51,6 +52,7 @@ public:
         bool operator==(const Track &o) const { return track==o.track && title==o.title && artist==o.artist &&
                                                 albumartist==o.albumartist && album==o.album; }
         bool operator!=(const Track &o) const { return !(*this==o); }
+        void clear() { title=artist=albumartist=album=QString(); track=length=0; timestamp=0; }
         QString title;
         QString artist;
         QString albumartist;
@@ -108,6 +110,7 @@ private Q_SLOTS:
     void authResp();
     void scrobbleFinished();
     void mpdStateUpdated();
+    void mpdStatusUpdated(const MPDStatusValues &vals);
     void clientMessageFailed(const QString &client, const QString &msg);
 
 private: