carbon-components/es/globals/js/misc/svg-toggle-class.js

Carbon Components is a component library for IBM Cloud

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}
/**
 * Copyright IBM Corp. 2016, 2018
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */


function svgToggleClass(svg, name, forceAdd) {
  var list = svg.getAttribute('class').trim().split(/\s+/);
  var uniqueList = Object.keys(list.reduce(function (o, item) {
    return Object.assign(o, _defineProperty({}, item, 1));
  }, {}));
  var index = uniqueList.indexOf(name);
  var found = index >= 0;
  var add = forceAdd === undefined ? !found : forceAdd;

  if (found === !add) {
    if (add) {
      uniqueList.push(name);
    } else {
      uniqueList.splice(index, 1);
    }

    svg.setAttribute('class', uniqueList.join(' '));
  }
}

export default svgToggleClass;