removeFirstHistoryElement method
Removes the first element from beamingHistory and returns it.
If there is none, returns null
.
Implementation
HistoryElement? removeFirstHistoryElement() {
if (beamingHistoryCompleteLength == 0) {
return null;
}
if (updateParent) {
_parent?.removeFirstHistoryElement();
}
final firstBeamLocation = beamingHistory.first;
final firstHistoryElement = firstBeamLocation.removeFirstFromHistory();
if (firstBeamLocation.history.isEmpty) {
_disposeBeamLocation(firstBeamLocation);
beamingHistory.removeAt(0);
}
return firstHistoryElement;
}