UndoManagerOptions.fromJson constructor

UndoManagerOptions.fromJson(Object? json_)

Returns a new instance from a JSON value. May throw if the value does not have the expected structure.

Implementation

factory UndoManagerOptions.fromJson(Object? json_) {
  final json = json_ is Map
      ? _spec.fields.map((f) => json_[f.label]).toList(growable: false)
      : json_;
  return switch (json) {
    [
      final captureTimeoutMillis,
      final trackedOrigins,
      final captureTransaction,
    ] ||
    (
      final captureTimeoutMillis,
      final trackedOrigins,
      final captureTransaction,
    ) => UndoManagerOptions(
      captureTimeoutMillis: Option.fromJson(
        captureTimeoutMillis,
        (some) => bigIntFromJson(some),
      ).value,
      trackedOrigins: Option.fromJson(
        trackedOrigins,
        (some) => (some! as Iterable)
            .map(
              (e) => (e is Uint8List
                  ? e
                  : Uint8List.fromList((e! as List).cast())),
            )
            .toList(),
      ).value,
      captureTransaction: Option.fromJson(
        captureTransaction,
        (some) => some! as bool,
      ).value,
    ),
    _ => throw Exception('Invalid JSON $json_'),
  };
}