updateTargets method

Implementation

void updateTargets(Iterable<TextSelectionTarget> targets) {
  final next = targets.where((t) => t.selectionEnabled).toList();
  // Freeze reading order during a selection; transforms may animate.
  if (next.length != _targets.length ||
      next.any((target) => !_targets.contains(target))) {
    clear();
    _targets = next;
  } else if (!isActive) {
    _targets = next;
  }
  validate();
  _useAppearance(
    _appearanceOverride ??
        (_targets.isEmpty
            ? const SelectionAppearance()
            : _targets.first.selectionAppearance),
  );
}