decodeDragStartBehavior static method

DragStartBehavior? decodeDragStartBehavior(
  1. dynamic value, {
  2. bool validate = true,
})

Decodes the given value to an DragStartBehavior. Supported values are:

  • horizontal
  • start

Implementation

static DragStartBehavior? decodeDragStartBehavior(
  dynamic value, {
  bool validate = true,
}) {
  DragStartBehavior? result;

  if (value is DragStartBehavior) {
    result = value;
  } else {
    _checkSupported(
      'DragStartBehavior',
      [
        'down',
        'start',
      ],
      value,
    );

    if (value != null) {
      assert(SchemaValidator.validate(
        schemaId: '$_baseSchemaUrl/drag_start_behavior',
        value: value,
        validate: validate,
      ));
      switch (value) {
        case 'down':
          result = DragStartBehavior.down;
          break;
        case 'start':
          result = DragStartBehavior.start;
          break;
      }
    }
  }

  return result;
}