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Util from './util'\n\n\n/**\n * --------------------------------------------------------------------------\n * Bootstrap (v4.0.0-alpha): tab.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst Tab = (($) => {\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Constants\n   * ------------------------------------------------------------------------\n   */\n\n  const NAME                = 'tab'\n  const VERSION             = '4.0.0-alpha'\n  const DATA_KEY            = 'bs.tab'\n  const EVENT_KEY           = `.${DATA_KEY}`\n  const DATA_API_KEY        = '.data-api'\n  const JQUERY_NO_CONFLICT  = $.fn[NAME]\n  const TRANSITION_DURATION = 150\n\n  const Event = {\n    HIDE           : `hide${EVENT_KEY}`,\n    HIDDEN         : `hidden${EVENT_KEY}`,\n    SHOW           : `show${EVENT_KEY}`,\n    SHOWN          : `shown${EVENT_KEY}`,\n    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`\n  }\n\n  const ClassName = {\n    DROPDOWN_MENU : 'dropdown-menu',\n    ACTIVE        : 'active',\n    FADE          : 'fade',\n    IN            : 'in'\n  }\n\n  const Selector = {\n    A                     : 'a',\n    LI                    : 'li',\n    DROPDOWN              : '.dropdown',\n    UL                    : 'ul:not(.dropdown-menu)',\n    FADE_CHILD            : '> .nav-item .fade, > .fade',\n    ACTIVE                : '.active',\n    ACTIVE_CHILD          : '> .nav-item > .active, > .active',\n    DATA_TOGGLE           : '[data-toggle=\"tab\"], [data-toggle=\"pill\"]',\n    DROPDOWN_TOGGLE       : '.dropdown-toggle',\n    DROPDOWN_ACTIVE_CHILD : '> .dropdown-menu .active'\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Class Definition\n   * ------------------------------------------------------------------------\n   */\n\n  class Tab {\n\n    constructor(element) {\n      this._element = element\n    }\n\n\n    // getters\n\n    static get VERSION() {\n      return VERSION\n    }\n\n\n    // public\n\n    show() {\n      if (this._element.parentNode &&\n         (this._element.parentNode.nodeType === Node.ELEMENT_NODE) &&\n         ($(this._element).hasClass(ClassName.ACTIVE))) {\n        return\n      }\n\n      let target\n      let previous\n      let ulElement = $(this._element).closest(Selector.UL)[0]\n      let selector  = Util.getSelectorFromElement(this._element)\n\n      if (ulElement) {\n        previous = $.makeArray($(ulElement).find(Selector.ACTIVE))\n        previous = previous[previous.length - 1]\n      }\n\n      let hideEvent = $.Event(Event.HIDE, {\n        relatedTarget: this._element\n      })\n\n      let showEvent = $.Event(Event.SHOW, {\n        relatedTarget: previous\n      })\n\n      if (previous) {\n        $(previous).trigger(hideEvent)\n      }\n\n      $(this._element).trigger(showEvent)\n\n      if (showEvent.isDefaultPrevented() ||\n         (hideEvent.isDefaultPrevented())) {\n        return\n      }\n\n      if (selector) {\n        target = $(selector)[0]\n      }\n\n      this._activate(\n        this._element,\n        ulElement\n      )\n\n      let complete = () => {\n        let hiddenEvent = $.Event(Event.HIDDEN, {\n          relatedTarget: this._element\n        })\n\n        let shownEvent  = $.Event(Event.SHOWN, {\n          relatedTarget: previous\n        })\n\n        $(previous).trigger(hiddenEvent)\n        $(this._element).trigger(shownEvent)\n      }\n\n      if (target) {\n        this._activate(target, target.parentNode, complete)\n      } else {\n        complete()\n      }\n    }\n\n    dispose() {\n      $.removeClass(this._element, DATA_KEY)\n      this._element = null\n    }\n\n\n    // private\n\n    _activate(element, container, callback) {\n      let active          = $(container).find(Selector.ACTIVE_CHILD)[0]\n      let isTransitioning = callback\n        && Util.supportsTransitionEnd()\n        && ((active && $(active).hasClass(ClassName.FADE))\n           || Boolean($(container).find(Selector.FADE_CHILD)[0]))\n\n      let complete = $.proxy(\n        this._transitionComplete,\n        this,\n        element,\n        active,\n        isTransitioning,\n        callback\n      )\n\n      if (active && isTransitioning) {\n        $(active)\n          .one(Util.TRANSITION_END, complete)\n          .emulateTransitionEnd(TRANSITION_DURATION)\n\n      } else {\n        complete()\n      }\n\n      if (active) {\n        $(active).removeClass(ClassName.IN)\n      }\n    }\n\n    _transitionComplete(element, active, isTransitioning, callback) {\n      if (active) {\n        $(active).removeClass(ClassName.ACTIVE)\n\n        let dropdownChild = $(active).find(\n          Selector.DROPDOWN_ACTIVE_CHILD\n        )[0]\n\n        if (dropdownChild) {\n          $(dropdownChild).removeClass(ClassName.ACTIVE)\n        }\n\n        active.setAttribute('aria-expanded', false)\n      }\n\n      $(element).addClass(ClassName.ACTIVE)\n      element.setAttribute('aria-expanded', true)\n\n      if (isTransitioning) {\n        Util.reflow(element)\n        $(element).addClass(ClassName.IN)\n      } else {\n        $(element).removeClass(ClassName.FADE)\n      }\n\n      if (element.parentNode &&\n         ($(element.parentNode).hasClass(ClassName.DROPDOWN_MENU))) {\n\n        let dropdownElement = $(element).closest(Selector.DROPDOWN)[0]\n        if (dropdownElement) {\n          $(dropdownElement).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE)\n        }\n\n        element.setAttribute('aria-expanded', true)\n      }\n\n      if (callback) {\n        callback()\n      }\n    }\n\n\n    // static\n\n    static _jQueryInterface(config) {\n      return this.each(function () {\n        let $this = $(this)\n        let data  = $this.data(DATA_KEY)\n\n        if (!data) {\n          data = data = new Tab(this)\n          $this.data(DATA_KEY, data)\n        }\n\n        if (typeof config === 'string') {\n          if (data[config] === undefined) {\n            throw new Error(`No method named \"${config}\"`)\n          }\n          data[config]()\n        }\n      })\n    }\n\n  }\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * Data Api implementation\n   * ------------------------------------------------------------------------\n   */\n\n  $(document)\n    .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {\n      event.preventDefault()\n      Tab._jQueryInterface.call($(this), 'show')\n    })\n\n\n  /**\n   * ------------------------------------------------------------------------\n   * jQuery\n   * ------------------------------------------------------------------------\n   */\n\n  $.fn[NAME]             = Tab._jQueryInterface\n  $.fn[NAME].Constructor = Tab\n  $.fn[NAME].noConflict  = function () {\n    $.fn[NAME] = JQUERY_NO_CONFLICT\n    return Tab._jQueryInterface\n  }\n\n  return Tab\n\n})(jQuery)\n\nexport default Tab\n"]}