Ask to delete a playlist on spotify side when deleting a synced playlist

src/accounts/spotify/SpotifyAccount.cpp

@@ -182,14 +182,14 @@ SpotifyAccount::syncActionTriggered( bool checked )
         }
 
         Q_ASSERT( info );
+        if ( info )
+            info->sync = !updater->sync();
+
+        if ( m_configWidget.data() )
+            m_configWidget.data()->setPlaylists( m_allSpotifyPlaylists );
 
         if ( !updater->sync() )
         {
-            if ( info )
-                info->sync = true;
-            if ( m_configWidget.data() )
-                m_configWidget.data()->setPlaylists( m_allSpotifyPlaylists );
-
             startPlaylistSync( info );
         }
         else

src/accounts/spotify/SpotifyPlaylistUpdater.cpp

@@ -22,6 +22,8 @@
 #include "SpotifyAccount.h"
 #include "utils/tomahawkutils.h"
 
+#include <QMessageBox>
+
 using namespace Tomahawk;
 using namespace Accounts;
 
@@ -114,9 +116,38 @@ SpotifyPlaylistUpdater::removeFromSettings( const QString& group ) const
     TomahawkSettings::instance()->remove( QString( "%1/latestrev" ).arg( group ) );
     TomahawkSettings::instance()->remove( QString( "%1/sync" ).arg( group ) );
     TomahawkSettings::instance()->remove( QString( "%1/spotifyId" ).arg( group ) );
+
+    if ( m_sync )
+    {
+        if ( QThread::currentThread() != QApplication::instance()->thread() )
+            QMetaObject::invokeMethod( const_cast<SpotifyPlaylistUpdater*>(this), "checkDeleteDialog", Qt::BlockingQueuedConnection );
+        else
+            checkDeleteDialog();
+    }
 }
 
 
+void
+SpotifyPlaylistUpdater::checkDeleteDialog() const
+{
+    // Ask if we should delete the playlist on the spotify side as well
+    QMessageBox askDelete( QMessageBox::Question, tr( "Delete in Spotify?" ), tr( "Would you like to delete the corresponding Spotify playlist as well?" ), QMessageBox::Yes | QMessageBox::No, 0 );
+    int ret = askDelete.exec();
+    if ( ret == QMessageBox::Yes )
+    {
+        if ( m_spotify.isNull() )
+            return;
+
+        // User wants to delete it!
+        QVariantMap msg;
+        msg[ "_msgtype" ] = "deletePlaylist";
+        msg[ "playlistid" ] = m_spotifyId;
+        m_spotify.data()->sendMessage( msg );
+    }
+}
+
+
+
 void
 SpotifyPlaylistUpdater::saveToSettings( const QString& group ) const
 {

src/accounts/spotify/SpotifyPlaylistUpdater.h

@@ -58,6 +58,7 @@ public:
     void spotifyTracksRemoved( const QVariantList& tracks, const QString& newRev, const QString& oldRev );
     void spotifyTracksMoved( const QVariantList& tracks, const QString& newRev, const QString& oldRev );
     void spotifyPlaylistRenamed( const QString& title, const QString& newRev, const QString& oldRev  );
+
 protected:
     virtual void removeFromSettings(const QString& group) const;
     virtual void saveToSettings(const QString& group) const;
@@ -70,6 +71,7 @@ private slots:
     void onTracksInsertedReturn( const QString& msgType, const QVariantMap& msg );
     void onTracksRemovedReturn( const QString& msgType, const QVariantMap& msg );
 
+    void checkDeleteDialog() const;
 private:
     void init();