react-dadata-suggestions-reactoutsideclick/src/handlers/ArrowDownHandler.js

Just another one react component for dadata suggestions

function ArrowDownHandler(e, context) {

  const KEY_CODE = 40;

  const handle = () => {
    e.preventDefault();
    const {selected, suggestions, showSuggestions} = context.state;

    if (!showSuggestions && !!suggestions.length) {
      context.makeListVisible();
      return;
    }

    if (!showSuggestions) {
      return;
    }

    const maxSuggestionIndex = suggestions.length - 1;
    const newSelected = selected < maxSuggestionIndex ? selected + 1 : 0;
    context.selectSuggestion(newSelected);
  };

  return {
    KEY_CODE: KEY_CODE,
    handle
  }
}

export default ArrowDownHandler;