Свойство opener

override

Ссылка на окно, которое открыло это окно.

Window thisWindow = window;
WindowBase otherWindow = thisWindow.open('http://www.example.com/', 'foo');
print(otherWindow.opener == thisWindow); // 'true'

Реализация

WindowBase? get opener => _convertNativeToDart_Window(this._get_opener);

void opener=(WindowBase? value)

Реализация

set opener(WindowBase? value) native;

© 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/Window/opener.html