onDateTap method
Handles a date tap, updating the selection based on the current mode.
Implementation
void onDateTap(DateTime date) {
final dateOnly = CalendarDateUtils.dateOnly(date);
switch (_mode) {
case SelectionMode.none:
break;
case SelectionMode.single:
_selectedDate = dateOnly;
break;
case SelectionMode.multiple:
if (_selectedDates.contains(dateOnly)) {
_selectedDates.remove(dateOnly);
} else {
_selectedDates.add(dateOnly);
}
break;
case SelectionMode.range:
_handleRangeSelection(dateOnly);
break;
}
notifyListeners();
}