reset playlist to first track on stop

LenaPi/controllers/MusicPlayer.cpp

@@ -33,7 +33,7 @@ void MusicPlayer::init(NavigationItemModel *item)
     mCurrentItem = item;
     emit coverImageSourceChanged();
 
-    clearMediaList();
+    clearPlaylist();
 
     readMedia(mCurrentItem->getPath());
 }
@@ -55,6 +55,7 @@ void MusicPlayer::stopMusic()
 {
     if(isPlaying()){
        stop();
+       resetPlaylistToFirstTrack();
     }
 }
 
@@ -66,10 +67,16 @@ void MusicPlayer::playNext()
 
 void MusicPlayer::playPrevious()
 {
-    if(!hasPrevious()) return;
+    if(!hasPrevious()) return; // checks if playlist exists
     playlist()->previous();
 }
 
+void MusicPlayer::resetPlaylistToFirstTrack()
+{
+    if(!playlist() && !playlist()->isEmpty()) return;
+    playlist()->setCurrentIndex(0);
+}
+
 bool MusicPlayer::isPlaying() const
 {
     return state() == State::PlayingState;
@@ -117,7 +124,7 @@ QString MusicPlayer::getTime()
     return timeToString(position());
 }
 
-void MusicPlayer::clearMediaList()
+void MusicPlayer::clearPlaylist()
 {
     if(playlist()){
         playlist()->clear();

LenaPi/controllers/MusicPlayer.h

@@ -62,9 +62,18 @@ public slots:
     void playPrevious();
 
 private:
-    void reset();
-    void clearMediaList();
+    /**
+     * @brief Resets playlist to first track if playlist exists and is non-empty
+     */
+    void resetPlaylistToFirstTrack();
+    void clearPlaylist();
     void readMedia(const QString& path);
+    /**
+     * @brief Transforms time in milliseconds into a string
+     * @param time Time in ms
+     * @return
+     * @todo use QDateTime
+     */
     QString timeToString(int time);
 
     int mCurrentMediaItemLength = 0;