jnpf-web-datareport/node_modules/handsontable/es/validators/autocompleteValidator.js

/**
 * Autocomplete cell validator.
 *
 * @private
 * @validator AutocompleteValidator
 * @param {*} value - Value of edited cell
 * @param {Function} callback - Callback called with validation result
 */
export default function autocompleteValidator(value, callback) {
  if (value == null) {
    value = '';
  }

  if (this.allowEmpty && value === '') {
    callback(true);

    return;
  }

  if (this.strict && this.source) {
    if (typeof this.source === 'function') {
      this.source(value, process(value, callback));
    } else {
      process(value, callback)(this.source);
    }
  } else {
    callback(true);
  }
};

/**
 * Function responsible for validation of autocomplete value.
 *
 * @param {*} value - Value of edited cell
 * @param {Function} callback - Callback called with validation result
 */
function process(value, callback) {
  var originalVal = value;

  return function (source) {
    var found = false;

    for (var s = 0, slen = source.length; s < slen; s++) {
      if (originalVal === source[s]) {
        found = true; // perfect match
        break;
      }
    }

    callback(found);
  };
}