WLibraryTableView: on FocusIn, select the first item if there is no p…

…revious selection (focused item)

src/widget/wlibrarytableview.cpp

@@ -148,3 +148,18 @@ void WLibraryTableView::setSelectedClick(bool enable) {
         setEditTriggers(QAbstractItemView::EditKeyPressed);
     }
 }
+
+bool WLibraryTableView::event(QEvent* e) {
+    // On FocusIn, with no focused item, select the first track which can then
+    // instantly be loaded to a deck.
+    // This is especially helpful if the table has only one track, which can not
+    // be selected with up/down buttons, either physical or emulated via
+    // [Library],MoveVertical controls. See lp:1808632
+    if (e->type() == QEvent::FocusIn &&
+            model()->rowCount() > 0 &&
+            currentIndex().row() == -1) {
+        selectRow(0);
+    }
+
+    return QTableView::event(e);
+}

src/widget/wlibrarytableview.h

@@ -58,6 +58,7 @@ class WLibraryTableView : public QTableView, public virtual LibraryView {
   private:
     void loadVScrollBarPosState();
     void saveVScrollBarPosState();
+    bool event(QEvent* e);
 
     const UserSettingsPointer m_pConfig;
     const ConfigKey m_vScrollBarPosKey;