Ability to skip when both decks are playing on auto dj

CHANGELOG

@@ -6,6 +6,7 @@
 * Prevent infinite loop when decoding corrupt MP3 files #2417
 * Add controller mapping for Native Instruments Traktor Kontrol S2 MK3 #2348
 * Add controller mapping for Soundless joyMIDI #2425
+* AutoDJ skip next track when both deck are playing lp:1399974 #2531
 
 ==== 2.2.3 2019-11-24 ====
 * Don't make users reconfigure sound hardware when it has not changed #2253

src/library/autodj/autodjprocessor.cpp

@@ -234,6 +234,18 @@ AutoDJProcessor::AutoDJError AutoDJProcessor::skipNext() {
     } else if (!rightDeck.isPlaying()) {
         removeLoadedTrackFromTopOfQueue(rightDeck);
         loadNextTrackFromQueue(rightDeck);
+    } else {
+        // If both decks are playing remove next track in playlist
+        TrackId nextId = m_pAutoDJTableModel->getTrackId(m_pAutoDJTableModel->index(0, 0));
+        TrackId leftId = leftDeck.getLoadedTrack()->getId();
+        TrackId rightId = rightDeck.getLoadedTrack()->getId();
+        if (nextId == leftId || nextId == rightId) {
+        // One of the playing tracks is still on top of playlist, remove second item
+            m_pAutoDJTableModel->removeTrack(m_pAutoDJTableModel->index(1, 0));
+        } else {
+            m_pAutoDJTableModel->removeTrack(m_pAutoDJTableModel->index(0, 0));
+        }
+        maybeFillRandomTracks();
     }
     return ADJ_OK;
 }
@@ -668,7 +680,11 @@ bool AutoDJProcessor::removeTrackFromTopOfQueue(TrackPointer pTrack) {
         m_pAutoDJTableModel->appendTrack(nextId);
     }
 
-    // Fill random tracks if configured
+    maybeFillRandomTracks();
+    return true;
+}
+
+void AutoDJProcessor::maybeFillRandomTracks() {
     int minAutoDJCrateTracks = m_pConfig->getValueString(
             ConfigKey(kConfigKey, "RandomQueueMinimumAllowed")).toInt();
     bool randomQueueEnabled = (((m_pConfig->getValueString(
@@ -679,8 +695,6 @@ bool AutoDJProcessor::removeTrackFromTopOfQueue(TrackPointer pTrack) {
         qDebug() << "Randomly adding tracks";
         emit(randomTrackRequested(tracksToAdd));
     }
-
-    return true;
 }
 
 void AutoDJProcessor::playerPlayChanged(DeckAttributes* pAttributes, bool playing) {

src/library/autodj/autodjprocessor.h

@@ -191,7 +191,7 @@ class AutoDJProcessor : public QObject {
     // Removes the provided track from the top of the AutoDJ queue if it is
     // present.
     bool removeTrackFromTopOfQueue(TrackPointer pTrack);
-
+    void maybeFillRandomTracks();
     UserSettingsPointer m_pConfig;
     PlayerManagerInterface* m_pPlayerManager;
     PlaylistTableModel* m_pAutoDJTableModel;