ssc-refer/es/refer/utils/getHintText.js

React refer component for SSC 3.0

import getOptionLabel from './getOptionLabel';
import stripDiacritics from './stripDiacritics';

function getHintText(_ref) {
  var activeItem = _ref.activeItem,
      initialItem = _ref.initialItem,
      labelKey = _ref.labelKey,
      minLength = _ref.minLength,
      selected = _ref.selected,
      text = _ref.text;

  // Don't display a hint under the following conditions:
  if (
  // No text entered.
  !text ||
  // Text doesn't meet `minLength` threshold.
  text.length < minLength ||
  // No item in the menu.
  !initialItem ||
  // The initial item is a custom option.
  initialItem.customOption ||
  // One of the menu items is active.
  activeItem ||
  // There's already a selection.
  !!selected.length) {
    return '';
  }

  var initialItemStr = getOptionLabel(initialItem, labelKey);

  if (
  // The input text corresponds to the beginning of the first option.
  // Always strip accents and convert to lower case, since the options are
  // already filtered at this point.
  stripDiacritics(initialItemStr.toLowerCase()).indexOf(stripDiacritics(text.toLowerCase())) !== 0) {
    return '';
  }

  // Text matching is case- and accent-insensitive, so to display the hint
  // correctly, splice the input text with the rest of the actual string.
  return text + initialItemStr.slice(text.length, initialItemStr.length);
}

export default getHintText;