def on_menuSelections_mouseMoved(self, event):
if event.buttons() & Qt.LeftButton and self.seldrag_start_pos:
if ((event.pos() - self.seldrag_start_pos).manhattanLength() >=
QApplication.startDragDistance()):
drag = QDrag(self.menuSelections)
data = QMimeData()
data.setText(self.seldrag_selection.name)
drag.setMimeData(data)
drag.exec_()
self.seldrag_start_pos = None
self.seldrag_selection = None
self.seldrag_target = None
QMenu.mouseMoveEvent(self.menuSelections, event)
