Конструктор Range.fromPoint
Реализация
factory Range.fromPoint(Point point) =>
document._caretRangeFromPoint(point.x.toInt(), point.y.toInt());
© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-html/Range/Range.fromPoint.html
