Fix build with -no-feature-draganddrop

Change-Id: I88ecd9a84d7fb9f6cb78027cc51e34089e211ff2
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 010a8987710f4aafcd34ce2359464cfab10dad46)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/widgets/itemviews/qabstractitemview.cpp

@@ -1793,9 +1793,11 @@ void QAbstractItemView::mousePressEvent(QMouseEvent *event)
     QPoint offset = d->offset();
     d->draggedPosition = pos + offset;
 
+#if QT_CONFIG(draganddrop)
     // update the pressed position when drag was enable
     if (d->dragEnabled)
         d->pressedPosition = d->draggedPosition;
+#endif
 
     if (!(command & QItemSelectionModel::Current)) {
         d->pressedPosition = pos + offset;
@@ -4127,13 +4129,21 @@ QItemSelectionModel::SelectionFlags QAbstractItemViewPrivate::multiSelectionComm
         case QEvent::MouseButtonPress:
             if (static_cast<const QMouseEvent*>(event)->button() == Qt::LeftButton) {
                 // since the press might start a drag, deselect only on release
-                if (!pressedAlreadySelected || !dragEnabled || !isIndexDragEnabled(index))
+                if (!pressedAlreadySelected
+#if QT_CONFIG(draganddrop)
+                        || !dragEnabled || !isIndexDragEnabled(index)
+#endif
+                        )
                     return QItemSelectionModel::Toggle|selectionBehaviorFlags(); // toggle
             }
             break;
         case QEvent::MouseButtonRelease:
             if (static_cast<const QMouseEvent*>(event)->button() == Qt::LeftButton) {
-                if (pressedAlreadySelected && dragEnabled && isIndexDragEnabled(index) && index == pressedIndex)
+                if (pressedAlreadySelected
+#if QT_CONFIG(draganddrop)
+                        && dragEnabled && isIndexDragEnabled(index)
+#endif
+                        && index == pressedIndex)
                     return QItemSelectionModel::Toggle|selectionBehaviorFlags();
                 return QItemSelectionModel::NoUpdate|selectionBehaviorFlags(); // finalize
             }
@@ -4181,7 +4191,10 @@ QItemSelectionModel::SelectionFlags QAbstractItemViewPrivate::extendedSelectionC
                 return QItemSelectionModel::NoUpdate;
             // since the press might start a drag, deselect only on release
             if (controlKeyPressed && !rightButtonPressed && pressedAlreadySelected
-                && dragEnabled && isIndexDragEnabled(index)) {
+#if QT_CONFIG(draganddrop)
+                && dragEnabled && isIndexDragEnabled(index)
+#endif
+                    ) {
                 return QItemSelectionModel::NoUpdate;
             }
             break;
@@ -4197,7 +4210,10 @@ QItemSelectionModel::SelectionFlags QAbstractItemViewPrivate::extendedSelectionC
                 && !shiftKeyPressed && !controlKeyPressed && (!rightButtonPressed || !index.isValid()))
                 return QItemSelectionModel::ClearAndSelect|selectionBehaviorFlags();
             if (index == pressedIndex && controlKeyPressed && !rightButtonPressed
-                && dragEnabled && isIndexDragEnabled(index)) {
+#if QT_CONFIG(draganddrop)
+                && dragEnabled && isIndexDragEnabled(index)
+#endif
+                    ) {
                 break;
             }
             return QItemSelectionModel::NoUpdate;
@@ -4661,6 +4677,7 @@ void QAbstractItemViewPrivate::selectAll(QItemSelectionModel::SelectionFlags com
     selectionModel->select(selection, command);
 }
 
+#if QT_CONFIG(draganddrop)
 QModelIndexList QAbstractItemViewPrivate::selectedDraggableIndexes() const
 {
     Q_Q(const QAbstractItemView);
@@ -4671,6 +4688,7 @@ QModelIndexList QAbstractItemViewPrivate::selectedDraggableIndexes() const
     indexes.removeIf(isNotDragEnabled);
     return indexes;
 }
+#endif
 
 /*!
     \reimp

src/widgets/itemviews/qabstractitemview_p.h

@@ -252,12 +252,14 @@ public:
     inline bool isIndexEnabled(const QModelIndex &index) const {
         return (model->flags(index) & Qt::ItemIsEnabled);
     }
+#if QT_CONFIG(draganddrop)
     inline bool isIndexDropEnabled(const QModelIndex &index) const {
         return (model->flags(index) & Qt::ItemIsDropEnabled);
     }
     inline bool isIndexDragEnabled(const QModelIndex &index) const {
         return (model->flags(index) & Qt::ItemIsDragEnabled);
     }
+#endif
 
     virtual bool selectionAllowed(const QModelIndex &index) const {
         // in some views we want to go ahead with selections, even if the index is invalid
@@ -304,7 +306,9 @@ public:
         return static_cast<QAbstractItemModelPrivate *>(model->d_ptr.data())->persistent.indexes.contains(index);
     }
 
+#if QT_CONFIG(draganddrop)
     QModelIndexList selectedDraggableIndexes() const;
+#endif
 
     void doDelayedReset()
     {

src/widgets/kernel/qapplication.cpp

@@ -3045,8 +3045,8 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
                 )
                 QDragManager::self()->setCurrentTarget(nullptr, e->type() == QEvent::Drop);
             break;
-#endif
         }
+#endif // QT_CONFIG(draganddrop)
         case QEvent::TouchBegin: {
             // Note: TouchUpdate and TouchEnd events are never propagated
             QMutableTouchEvent *touchEvent = QMutableTouchEvent::from(static_cast<QTouchEvent *>(e));