open method

@override Future<bool> open()

Attempts to open the modal.

Returns a future that completes with true if it succeeds.

Implementation

@override
Future<bool> open() {
  if (_pendingOpen == null) {
    final controller = AsyncActionController<dynamic>();
    controller.execute(_showModalOverlay);
    _pendingOpen = controller.action.onDone.then((completed) {
      _pendingOpen = null;
      return completed;
    });
    _onOpen.add(controller.action);
  }
  return _pendingOpen!;
}