text: var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
  
  import settings from '../../globals/js/settings';
  import mixin from '../../globals/js/misc/mixin';
  import createComponent from '../../globals/js/mixins/create-component';
  import initComponentBySearch from '../../globals/js/mixins/init-component-by-search';
  import handles from '../../globals/js/mixins/handles';
  import on from '../../globals/js/misc/on';
  
  var NumberInput = function (_mixin) {
    _inherits(NumberInput, _mixin);
  
    /**
     * Number input UI.
     * @extends CreateComponent
     * @extends InitComponentBySearch
     * @extends Handles
     * @param {HTMLElement} element The element working as a number input UI.
     */
    function NumberInput(element, options) {
      _classCallCheck(this, NumberInput);
  
      // Broken DOM tree is seen with up/down arrows <svg> in IE, which breaks event delegation.
      // <svg> does not have `Element.classList` in IE11
      var _this = _possibleConstructorReturn(this, (NumberInput.__proto__ || Object.getPrototypeOf(NumberInput)).call(this, element, options));
  
      _this.manage(on(_this.element.querySelector('.up-icon'), 'click', function (event) {
        _this._handleClick(event);
      }));
      _this.manage(on(_this.element.querySelector('.down-icon'), 'click', function (event) {
        _this._handleClick(event);
      }));
      return _this;
    }
  
    /**
     * Increase/decrease number by clicking on up/down icons.
     * @param {Event} event The event triggering this method.
     */
  
  
    _createClass(NumberInput, [{
      key: '_handleClick',
      value: function _handleClick(event) {
        var numberInput = this.element.querySelector(this.options.selectorInput);
        var target = event.currentTarget.getAttribute('class').split(' ');
  
        if (target.indexOf('up-icon') >= 0) {
          ++numberInput.value;
        } else if (target.indexOf('down-icon') >= 0) {
          --numberInput.value;
        }
  
        // Programmatic change in value (including `stepUp()`/`stepDown()`) won't fire change event
        numberInput.dispatchEvent(new CustomEvent('change', {
          bubbles: true,
          cancelable: false
        }));
      }
  
      /**
       * The map associating DOM element and number input UI instance.
       * @member NumberInput.components
       * @type {WeakMap}
       */
  
    }], [{
      key: 'options',
  
  
      /**
       * The component options.
       * If `options` is specified in the constructor,
       * {@linkcode NumberInput.create .create()}, or {@linkcode NumberInput.init .init()},
       * properties in this object are overriden for the instance being create and how {@linkcode NumberInput.init .init()} works.
       * @member NumberInput.options
       * @type {Object}
       * @property {string} selectorInit The CSS selector to find number input UIs.
       * @property {string} [selectorInput] The CSS selector to find the `<input>` element.
       */
      get: function get() {
        var prefix = settings.prefix;
  
        return {
          selectorInit: '[data-numberinput]',
          selectorInput: '.' + prefix + '--number input'
        };
      }
    }]);
  
    return NumberInput;
  }(mixin(createComponent, initComponentBySearch, handles));
  
  NumberInput.components = new WeakMap();
  
  
  export default NumberInput;