Add setting for enabling scrobbling based on song source

Fixes #416

src/scrobbler/audioscrobbler.cpp

@@ -74,8 +74,28 @@ void AudioScrobbler::ReloadSettings() {
   submit_delay_ = s.value("submit", 0).toInt();
   prefer_albumartist_ = s.value("albumartist", false).toBool();
   show_error_dialog_ = s.value("show_error_dialog", true).toBool();
+  QStringList sources = s.value("sources").toStringList();
   s.endGroup();
 
+  sources_.clear();
+
+  if (sources.isEmpty()) {
+    sources_ << Song::Source_Unknown
+             << Song::Source_LocalFile
+             << Song::Source_Collection
+             << Song::Source_CDDA
+             << Song::Source_Device
+             << Song::Source_Stream
+             << Song::Source_Tidal
+             << Song::Source_Subsonic
+             << Song::Source_Qobuz;
+  }
+  else {
+    for (const QString &source : sources) {
+      sources_ << Song::SourceFromText(source);
+    }
+  }
+
   emit ScrobblingEnabledChanged(enabled_);
   emit ScrobbleButtonVisibilityChanged(scrobble_button_);
   emit LoveButtonVisibilityChanged(love_button_);
@@ -122,6 +142,8 @@ void AudioScrobbler::ShowConfig() {
 
 void AudioScrobbler::UpdateNowPlaying(const Song &song) {
 
+  if (!sources_.contains(song.source())) return;
+
   qLog(Debug) << "Sending now playing for song" << song.artist() << song.album() << song.title();
 
   for (ScrobblerService *service : scrobbler_services_->List()) {
@@ -142,6 +164,8 @@ void AudioScrobbler::ClearPlaying() {
 
 void AudioScrobbler::Scrobble(const Song &song, const int scrobble_point) {
 
+  if (!sources_.contains(song.source())) return;
+
   qLog(Debug) << "Scrobbling song" << song.artist() << song.album() << song.title() << "at" << scrobble_point;
 
   for (ScrobblerService *service : scrobbler_services_->List()) {

src/scrobbler/audioscrobbler.h

@@ -23,8 +23,10 @@
 #include "config.h"
 
 #include <QObject>
+#include <QList>
 #include <QString>
 
+#include "core/song.h"
 #include "scrobblerservices.h"
 
 class Application;
@@ -46,6 +48,7 @@ class AudioScrobbler : public QObject {
   int SubmitDelay() const { return submit_delay_; }
   bool PreferAlbumArtist() const { return prefer_albumartist_; }
   bool ShowErrorDialog() const { return show_error_dialog_; }
+  QList<Song::Source> sources() const { return sources_; }
 
   void UpdateNowPlaying(const Song &song);
   void ClearPlaying();
@@ -86,6 +89,7 @@ class AudioScrobbler : public QObject {
   int submit_delay_;
   bool prefer_albumartist_;
   bool show_error_dialog_;
+  QList<Song::Source> sources_;
 
 };