@helpscout/hsds-react/components/Truncate/Truncate.utils.js

React component library for Help Scout's Design System

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

exports.__esModule = true;
exports.truncateMiddle = exports.TRUNCATED_CLASSNAMES = exports.TRUNCATED_COMPONENT_KEY = void 0;

var _lodash = _interopRequireDefault(require("lodash.isstring"));

var _lodash2 = _interopRequireDefault(require("lodash.isnil"));

var TRUNCATED_COMPONENT_KEY = 'c-Truncate__content__chunks';
exports.TRUNCATED_COMPONENT_KEY = TRUNCATED_COMPONENT_KEY;
var TRUNCATED_CLASSNAMES = {
  component: TRUNCATED_COMPONENT_KEY,
  withSplitter: 'with-splitter',
  firstChunk: TRUNCATED_COMPONENT_KEY + "__first",
  secondChunk: TRUNCATED_COMPONENT_KEY + "__second"
}; // Source
// https://github.com/kahwee/truncate-middle

exports.TRUNCATED_CLASSNAMES = TRUNCATED_CLASSNAMES;

var truncateMiddle = function truncateMiddle(word, startLen, endLen, ellip) {
  var wordLen = (0, _lodash2.default)(word) ? 0 : word.length;

  if (!(0, _lodash.default)(word) && !wordLen) {
    return '';
  } // Setting default values


  var frontLen = ~~startLen; // will cast to integer

  var backLen = ~~endLen;
  var truncateStr = ellip !== undefined ? ellip : '…';

  if (frontLen === 0 && backLen === 0 || frontLen >= wordLen || backLen >= wordLen || frontLen + backLen >= wordLen) {
    return word;
  } else if (backLen === 0) {
    return word.slice(0, frontLen) + truncateStr;
  } else {
    return word.slice(0, frontLen) + truncateStr + word.slice(wordLen - backLen);
  }
};

exports.truncateMiddle = truncateMiddle;