Library: Enter triggers mouse double click action...

if no cell is in edit mode.

src/preferences/dialog/dlgpreflibrarydlg.ui

@@ -255,7 +255,7 @@
       <string/>
      </property>
      <property name="title">
-      <string extracomment="Sets default action when double-clicking a track in the library.">Track Double-Click Action</string>
+      <string extracomment="Sets default action when double-clicking on a track in the library or pressing Return.">Track Double-Click / Return Key Action</string>
      </property>
      <layout class="QGridLayout" name="gridLayout_dblick">
       <item row="0" column="0">

src/widget/wtracktableview.cpp

@@ -755,22 +755,25 @@ TrackModel* WTrackTableView::getTrackModel() const {
 }
 
 void WTrackTableView::keyPressEvent(QKeyEvent* event) {
-    if (event->key() == Qt::Key_Return) {
-        // Ctrl+Enter opens track properties dialog
+    // If Ignore all Enter combos if any cell editor is open
+    if (event->key() == Qt::Key_Return &&
+            state() != QTableView::EditingState) {
+        // Ctrl+Return opens track properties dialog.
         // The shortcut display string needs to be set in WTrackMenu accordingly.
         if (event->modifiers() & Qt::ControlModifier) {
             QModelIndexList indices = selectionModel()->selectedRows();
             if (indices.length() == 1) {
                 m_pTrackMenu->loadTrackModelIndices(indices);
                 m_pTrackMenu->slotShowDlgTrackInfo();
+                return;
             }
+        } else if (!event->modifiers()) {
+            // Return alone triggers the double-click action.
+            slotMouseDoubleClicked(this->currentIndex());
+            return;
         }
-        // It is not a good idea if 'key_return'
-        // causes a track to load since we allow in-line editing
-        // of table items in general
-    } else {
-        QTableView::keyPressEvent(event);
     }
+    QTableView::keyPressEvent(event);
 }
 
 void WTrackTableView::loadSelectedTrack() {