bootstrap.js

/*!
  * Bootstrap v4.0.0 (https://getbootstrap.com)
  * Copyright 2011-2018 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('jquery'), require('popper.js')) :
	typeof define === 'function' && define.amd ? define(['exports', 'jquery', 'popper.js'], factory) :
	(factory((global.bootstrap = {}),global.jQuery,global.Popper));
}(this, (function (exports,$,Popper) { 'use strict';

$ = $ && $.hasOwnProperty('default') ? $['default'] : $;
Popper = Popper && Popper.hasOwnProperty('default') ? Popper['default'] : Popper;

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);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _extends() {
  _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

    return target;
  };

  return _extends.apply(this, arguments);
}

function _inheritsLoose(subClass, superClass) {
  subClass.prototype = Object.create(superClass.prototype);
  subClass.prototype.constructor = subClass;
  subClass.__proto__ = superClass;
}

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0): util.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

var Util = function ($$$1) {
  /**
   * ------------------------------------------------------------------------
   * Private TransitionEnd Helpers
   * ------------------------------------------------------------------------
   */
  var transition = false;
  var MAX_UID = 1000000; // Shoutout AngusCroll (https://goo.gl/pxwQGp)

  function toType(obj) {
    return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
  }

  function getSpecialTransitionEndEvent() {
    return {
      bindType: transition.end,
      delegateType: transition.end,
      handle: function handle(event) {
        if ($$$1(event.target).is(this)) {
          return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
        }

        return undefined; // eslint-disable-line no-undefined
      }
    };
  }

  function transitionEndTest() {
    if (typeof window !== 'undefined' && window.QUnit) {
      return false;
    }

    return {
      end: 'transitionend'
    };
  }

  function transitionEndEmulator(duration) {
    var _this = this;

    var called = false;
    $$$1(this).one(Util.TRANSITION_END, function () {
      called = true;
    });
    setTimeout(function () {
      if (!called) {
        Util.triggerTransitionEnd(_this);
      }
    }, duration);
    return this;
  }

  function setTransitionEndSupport() {
    transition = transitionEndTest();
    $$$1.fn.emulateTransitionEnd = transitionEndEmulator;

    if (Util.supportsTransitionEnd()) {
      $$$1.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
    }
  }
  /**
   * --------------------------------------------------------------------------
   * Public Util Api
   * --------------------------------------------------------------------------
   */


  var Util = {
    TRANSITION_END: 'bsTransitionEnd',
    getUID: function getUID(prefix) {
      do {
        // eslint-disable-next-line no-bitwise
        prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
      } while (document.getElementById(prefix));

      return prefix;
    },
    getSelectorFromElement: function getSelectorFromElement(element) {
      var selector = element.getAttribute('data-target');

      if (!selector || selector === '#') {
        selector = element.getAttribute('href') || '';
      }

      try {
        var $selector = $$$1(document).find(selector);
        return $selector.length > 0 ? selector : null;
      } catch (err) {
        return null;
      }
    },
    reflow: function reflow(element) {
      return element.offsetHeight;
    },
    triggerTransitionEnd: function triggerTransitionEnd(element) {
      $$$1(element).trigger(transition.end);
    },
    supportsTransitionEnd: function supportsTransitionEnd() {
      return Boolean(transition);
    },
    isElement: function isElement(obj) {
      return (obj[0] || obj).nodeType;
    },
    typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
      for (var property in configTypes) {
        if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
          var expectedTypes = configTypes[property];
          var value = config[property];
          var valueType = value && Util.isElement(value) ? 'element' : toType(value);

          if (!new RegExp(expectedTypes).test(valueType)) {
            throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
          }
        }
      }
    }
  };
  setTransitionEndSupport();
  return Util;
}($);

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0): alert.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

var Alert = function ($$$1) {
  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */
  var NAME = 'alert';
  var VERSION = '4.0.0';
  var DATA_KEY = 'bs.alert';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
  var TRANSITION_DURATION = 150;
  var Selector = {
    DISMISS: '[data-dismiss="alert"]'
  };
  var Event = {
    CLOSE: "close" + EVENT_KEY,
    CLOSED: "closed" + EVENT_KEY,
    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
  };
  var ClassName = {
    ALERT: 'alert',
    FADE: 'fade',
    SHOW: 'show'
    /**
     * ------------------------------------------------------------------------
     * Class Definition
     * ------------------------------------------------------------------------
     */

  };

  var Alert =
  /*#__PURE__*/
  function () {
    function Alert(element) {
      this._element = element;
    } // Getters


    var _proto = Alert.prototype;

    // Public
    _proto.close = function close(element) {
      element = element || this._element;

      var rootElement = this._getRootElement(element);

      var customEvent = this._triggerCloseEvent(rootElement);

      if (customEvent.isDefaultPrevented()) {
        return;
      }

      this._removeElement(rootElement);
    };

    _proto.dispose = function dispose() {
      $$$1.removeData(this._element, DATA_KEY);
      this._element = null;
    }; // Private


    _proto._getRootElement = function _getRootElement(element) {
      var selector = Util.getSelectorFromElement(element);
      var parent = false;

      if (selector) {
        parent = $$$1(selector)[0];
      }

      if (!parent) {
        parent = $$$1(element).closest("." + ClassName.ALERT)[0];
      }

      return parent;
    };

    _proto._triggerCloseEvent = function _triggerCloseEvent(element) {
      var closeEvent = $$$1.Event(Event.CLOSE);
      $$$1(element).trigger(closeEvent);
      return closeEvent;
    };

    _proto._removeElement = function _removeElement(element) {
      var _this = this;

      $$$1(element).removeClass(ClassName.SHOW);

      if (!Util.supportsTransitionEnd() || !$$$1(element).hasClass(ClassName.FADE)) {
        this._destroyElement(element);

        return;
      }

      $$$1(element).one(Util.TRANSITION_END, function (event) {
        return _this._destroyElement(element, event);
      }).emulateTransitionEnd(TRANSITION_DURATION);
    };

    _proto._destroyElement = function _destroyElement(element) {
      $$$1(element).detach().trigger(Event.CLOSED).remove();
    }; // Static


    Alert._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var $element = $$$1(this);
        var data = $element.data(DATA_KEY);

        if (!data) {
          data = new Alert(this);
          $element.data(DATA_KEY, data);
        }

        if (config === 'close') {
          data[config](this);
        }
      });
    };

    Alert._handleDismiss = function _handleDismiss(alertInstance) {
      return function (event) {
        if (event) {
          event.preventDefault();
        }

        alertInstance.close(this);
      };
    };

    _createClass(Alert, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION;
      }
    }]);
    return Alert;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $$$1(document).on(Event.CLICK_DATA_API, Selector.DISMISS, Alert._handleDismiss(new Alert()));
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $$$1.fn[NAME] = Alert._jQueryInterface;
  $$$1.fn[NAME].Constructor = Alert;

  $$$1.fn[NAME].noConflict = function () {
    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
    return Alert._jQueryInterface;
  };

  return Alert;
}($);

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0): button.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

var Button = function ($$$1) {
  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */
  var NAME = 'button';
  var VERSION = '4.0.0';
  var DATA_KEY = 'bs.button';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
  var ClassName = {
    ACTIVE: 'active',
    BUTTON: 'btn',
    FOCUS: 'focus'
  };
  var Selector = {
    DATA_TOGGLE_CARROT: '[data-toggle^="button"]',
    DATA_TOGGLE: '[data-toggle="buttons"]',
    INPUT: 'input',
    ACTIVE: '.active',
    BUTTON: '.btn'
  };
  var Event = {
    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
    FOCUS_BLUR_DATA_API: "focus" + EVENT_KEY + DATA_API_KEY + " " + ("blur" + EVENT_KEY + DATA_API_KEY)
    /**
     * ------------------------------------------------------------------------
     * Class Definition
     * ------------------------------------------------------------------------
     */

  };

  var Button =
  /*#__PURE__*/
  function () {
    function Button(element) {
      this._element = element;
    } // Getters


    var _proto = Button.prototype;

    // Public
    _proto.toggle = function toggle() {
      var triggerChangeEvent = true;
      var addAriaPressed = true;
      var rootElement = $$$1(this._element).closest(Selector.DATA_TOGGLE)[0];

      if (rootElement) {
        var input = $$$1(this._element).find(Selector.INPUT)[0];

        if (input) {
          if (input.type === 'radio') {
            if (input.checked && $$$1(this._element).hasClass(ClassName.ACTIVE)) {
              triggerChangeEvent = false;
            } else {
              var activeElement = $$$1(rootElement).find(Selector.ACTIVE)[0];

              if (activeElement) {
                $$$1(activeElement).removeClass(ClassName.ACTIVE);
              }
            }
          }

          if (triggerChangeEvent) {
            if (input.hasAttribute('disabled') || rootElement.hasAttribute('disabled') || input.classList.contains('disabled') || rootElement.classList.contains('disabled')) {
              return;
            }

            input.checked = !$$$1(this._element).hasClass(ClassName.ACTIVE);
            $$$1(input).trigger('change');
          }

          input.focus();
          addAriaPressed = false;
        }
      }

      if (addAriaPressed) {
        this._element.setAttribute('aria-pressed', !$$$1(this._element).hasClass(ClassName.ACTIVE));
      }

      if (triggerChangeEvent) {
        $$$1(this._element).toggleClass(ClassName.ACTIVE);
      }
    };

    _proto.dispose = function dispose() {
      $$$1.removeData(this._element, DATA_KEY);
      this._element = null;
    }; // Static


    Button._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var data = $$$1(this).data(DATA_KEY);

        if (!data) {
          data = new Button(this);
          $$$1(this).data(DATA_KEY, data);
        }

        if (config === 'toggle') {
          data[config]();
        }
      });
    };

    _createClass(Button, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION;
      }
    }]);
    return Button;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
    event.preventDefault();
    var button = event.target;

    if (!$$$1(button).hasClass(ClassName.BUTTON)) {
      button = $$$1(button).closest(Selector.BUTTON);
    }

    Button._jQueryInterface.call($$$1(button), 'toggle');
  }).on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
    var button = $$$1(event.target).closest(Selector.BUTTON)[0];
    $$$1(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type));
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $$$1.fn[NAME] = Button._jQueryInterface;
  $$$1.fn[NAME].Constructor = Button;

  $$$1.fn[NAME].noConflict = function () {
    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
    return Button._jQueryInterface;
  };

  return Button;
}($);

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0): carousel.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

var Carousel = function ($$$1) {
  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */
  var NAME = 'carousel';
  var VERSION = '4.0.0';
  var DATA_KEY = 'bs.carousel';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
  var ARROW_LEFT_KEYCODE = 37; // KeyboardEvent.which value for left arrow key

  var ARROW_RIGHT_KEYCODE = 39; // KeyboardEvent.which value for right arrow key

  var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch

  var MILLISECONDS_MULTIPLIER = 1000;
  var Default = {
    interval: 5000,
    keyboard: true,
    slide: false,
    pause: 'hover',
    wrap: true
  };
  var DefaultType = {
    interval: '(number|boolean)',
    keyboard: 'boolean',
    slide: '(boolean|string)',
    pause: '(string|boolean)',
    wrap: 'boolean'
  };
  var Direction = {
    NEXT: 'next',
    PREV: 'prev',
    LEFT: 'left',
    RIGHT: 'right'
  };
  var Event = {
    SLIDE: "slide" + EVENT_KEY,
    SLID: "slid" + EVENT_KEY,
    KEYDOWN: "keydown" + EVENT_KEY,
    MOUSEENTER: "mouseenter" + EVENT_KEY,
    MOUSELEAVE: "mouseleave" + EVENT_KEY,
    TOUCHEND: "touchend" + EVENT_KEY,
    LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
  };
  var ClassName = {
    CAROUSEL: 'carousel',
    ACTIVE: 'active',
    SLIDE: 'slide',
    RIGHT: 'carousel-item-right',
    LEFT: 'carousel-item-left',
    NEXT: 'carousel-item-next',
    PREV: 'carousel-item-prev',
    ITEM: 'carousel-item'
  };
  var Selector = {
    ACTIVE: '.active',
    ACTIVE_ITEM: '.active.carousel-item',
    ITEM: '.carousel-item',
    NEXT_PREV: '.carousel-item-next, .carousel-item-prev',
    INDICATORS: '.carousel-indicators',
    DATA_SLIDE: '[data-slide], [data-slide-to]',
    DATA_RIDE: '[data-ride="carousel"]'
    /**
     * ------------------------------------------------------------------------
     * Class Definition
     * ------------------------------------------------------------------------
     */

  };

  var Carousel =
  /*#__PURE__*/
  function () {
    function Carousel(element, config) {
      this._items = null;
      this._interval = null;
      this._activeElement = null;
      this._isPaused = false;
      this._isSliding = false;
      this.touchTimeout = null;
      this._config = this._getConfig(config);
      this._element = $$$1(element)[0];
      this._indicatorsElement = $$$1(this._element).find(Selector.INDICATORS)[0];
      this._transitionDuration = this._getTransitionDuration();

      this._addEventListeners();
    } // Getters


    var _proto = Carousel.prototype;

    // Public
    _proto.next = function next() {
      if (!this._isSliding) {
        this._slide(Direction.NEXT);
      }
    };

    _proto.nextWhenVisible = function nextWhenVisible() {
      // Don't call next when the page isn't visible
      // or the carousel or its parent isn't visible
      if (!document.hidden && $$$1(this._element).is(':visible') && $$$1(this._element).css('visibility') !== 'hidden') {
        this.next();
      }
    };

    _proto.prev = function prev() {
      if (!this._isSliding) {
        this._slide(Direction.PREV);
      }
    };

    _proto.pause = function pause(event) {
      if (!event) {
        this._isPaused = true;
      }

      if ($$$1(this._element).find(Selector.NEXT_PREV)[0] && Util.supportsTransitionEnd()) {
        Util.triggerTransitionEnd(this._element);
        this.cycle(true);
      }

      clearInterval(this._interval);
      this._interval = null;
    };

    _proto.cycle = function cycle(event) {
      if (!event) {
        this._isPaused = false;
      }

      if (this._interval) {
        clearInterval(this._interval);
        this._interval = null;
      }

      if (this._config.interval && !this._isPaused) {
        this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
      }
    };

    _proto.to = function to(index) {
      var _this = this;

      this._activeElement = $$$1(this._element).find(Selector.ACTIVE_ITEM)[0];

      var activeIndex = this._getItemIndex(this._activeElement);

      if (index > this._items.length - 1 || index < 0) {
        return;
      }

      if (this._isSliding) {
        $$$1(this._element).one(Event.SLID, function () {
          return _this.to(index);
        });
        return;
      }

      if (activeIndex === index) {
        this.pause();
        this.cycle();
        return;
      }

      var direction = index > activeIndex ? Direction.NEXT : Direction.PREV;

      this._slide(direction, this._items[index]);
    };

    _proto.dispose = function dispose() {
      $$$1(this._element).off(EVENT_KEY);
      $$$1.removeData(this._element, DATA_KEY);
      this._items = null;
      this._config = null;
      this._element = null;
      this._interval = null;
      this._isPaused = null;
      this._isSliding = null;
      this._activeElement = null;
      this._indicatorsElement = null;
    }; // Private


    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, Default, config);
      Util.typeCheckConfig(NAME, config, DefaultType);
      return config;
    };

    _proto._getTransitionDuration = function _getTransitionDuration() {
      // Get transition-duration of first element in the carousel
      var transitionDuration = $$$1(this._element).find(Selector.ITEM).css('transition-duration'); // Return 0 carousel item is not found

      if (!transitionDuration) {
        return 0;
      } // If multiple durations are defined, take the first


      transitionDuration = transitionDuration.split(',')[0]; // Multiply by 1000 if transition-duration is defined in seconds

      return transitionDuration.indexOf('ms') > -1 ? parseFloat(transitionDuration) : parseFloat(transitionDuration) * MILLISECONDS_MULTIPLIER;
    };

    _proto._addEventListeners = function _addEventListeners() {
      var _this2 = this;

      if (this._config.keyboard) {
        $$$1(this._element).on(Event.KEYDOWN, function (event) {
          return _this2._keydown(event);
        });
      }

      if (this._config.pause === 'hover') {
        $$$1(this._element).on(Event.MOUSEENTER, function (event) {
          return _this2.pause(event);
        }).on(Event.MOUSELEAVE, function (event) {
          return _this2.cycle(event);
        });

        if ('ontouchstart' in document.documentElement) {
          // If it's a touch-enabled device, mouseenter/leave are fired as
          // part of the mouse compatibility events on first tap - the carousel
          // would stop cycling until user tapped out of it;
          // here, we listen for touchend, explicitly pause the carousel
          // (as if it's the second time we tap on it, mouseenter compat event
          // is NOT fired) and after a timeout (to allow for mouse compatibility
          // events to fire) we explicitly restart cycling
          $$$1(this._element).on(Event.TOUCHEND, function () {
            _this2.pause();

            if (_this2.touchTimeout) {
              clearTimeout(_this2.touchTimeout);
            }

            _this2.touchTimeout = setTimeout(function (event) {
              return _this2.cycle(event);
            }, TOUCHEVENT_COMPAT_WAIT + _this2._config.interval);
          });
        }
      }
    };

    _proto._keydown = function _keydown(event) {
      if (/input|textarea/i.test(event.target.tagName)) {
        return;
      }

      switch (event.which) {
        case ARROW_LEFT_KEYCODE:
          event.preventDefault();
          this.prev();
          break;

        case ARROW_RIGHT_KEYCODE:
          event.preventDefault();
          this.next();
          break;

        default:
      }
    };

    _proto._getItemIndex = function _getItemIndex(element) {
      this._items = $$$1.makeArray($$$1(element).parent().find(Selector.ITEM));
      return this._items.indexOf(element);
    };

    _proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
      var isNextDirection = direction === Direction.NEXT;
      var isPrevDirection = direction === Direction.PREV;

      var activeIndex = this._getItemIndex(activeElement);

      var lastItemIndex = this._items.length - 1;
      var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;

      if (isGoingToWrap && !this._config.wrap) {
        return activeElement;
      }

      var delta = direction === Direction.PREV ? -1 : 1;
      var itemIndex = (activeIndex + delta) % this._items.length;
      return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
    };

    _proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
      var targetIndex = this._getItemIndex(relatedTarget);

      var fromIndex = this._getItemIndex($$$1(this._element).find(Selector.ACTIVE_ITEM)[0]);

      var slideEvent = $$$1.Event(Event.SLIDE, {
        relatedTarget: relatedTarget,
        direction: eventDirectionName,
        from: fromIndex,
        to: targetIndex
      });
      $$$1(this._element).trigger(slideEvent);
      return slideEvent;
    };

    _proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
      if (this._indicatorsElement) {
        $$$1(this._indicatorsElement).find(Selector.ACTIVE).removeClass(ClassName.ACTIVE);

        var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];

        if (nextIndicator) {
          $$$1(nextIndicator).addClass(ClassName.ACTIVE);
        }
      }
    };

    _proto._slide = function _slide(direction, element) {
      var _this3 = this;

      var activeElement = $$$1(this._element).find(Selector.ACTIVE_ITEM)[0];

      var activeElementIndex = this._getItemIndex(activeElement);

      var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);

      var nextElementIndex = this._getItemIndex(nextElement);

      var isCycling = Boolean(this._interval);
      var directionalClassName;
      var orderClassName;
      var eventDirectionName;

      if (direction === Direction.NEXT) {
        directionalClassName = ClassName.LEFT;
        orderClassName = ClassName.NEXT;
        eventDirectionName = Direction.LEFT;
      } else {
        directionalClassName = ClassName.RIGHT;
        orderClassName = ClassName.PREV;
        eventDirectionName = Direction.RIGHT;
      }

      if (nextElement && $$$1(nextElement).hasClass(ClassName.ACTIVE)) {
        this._isSliding = false;
        return;
      }

      var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);

      if (slideEvent.isDefaultPrevented()) {
        return;
      }

      if (!activeElement || !nextElement) {
        // Some weirdness is happening, so we bail
        return;
      }

      this._isSliding = true;

      if (isCycling) {
        this.pause();
      }

      this._setActiveIndicatorElement(nextElement);

      var slidEvent = $$$1.Event(Event.SLID, {
        relatedTarget: nextElement,
        direction: eventDirectionName,
        from: activeElementIndex,
        to: nextElementIndex
      });

      if (Util.supportsTransitionEnd() && $$$1(this._element).hasClass(ClassName.SLIDE)) {
        $$$1(nextElement).addClass(orderClassName);
        Util.reflow(nextElement);
        $$$1(activeElement).addClass(directionalClassName);
        $$$1(nextElement).addClass(directionalClassName);
        $$$1(activeElement).one(Util.TRANSITION_END, function () {
          $$$1(nextElement).removeClass(directionalClassName + " " + orderClassName).addClass(ClassName.ACTIVE);
          $$$1(activeElement).removeClass(ClassName.ACTIVE + " " + orderClassName + " " + directionalClassName);
          _this3._isSliding = false;
          setTimeout(function () {
            return $$$1(_this3._element).trigger(slidEvent);
          }, 0);
        }).emulateTransitionEnd(this._transitionDuration);
      } else {
        $$$1(activeElement).removeClass(ClassName.ACTIVE);
        $$$1(nextElement).addClass(ClassName.ACTIVE);
        this._isSliding = false;
        $$$1(this._element).trigger(slidEvent);
      }

      if (isCycling) {
        this.cycle();
      }
    }; // Static


    Carousel._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var data = $$$1(this).data(DATA_KEY);

        var _config = _extends({}, Default, $$$1(this).data());

        if (typeof config === 'object') {
          _config = _extends({}, _config, config);
        }

        var action = typeof config === 'string' ? config : _config.slide;

        if (!data) {
          data = new Carousel(this, _config);
          $$$1(this).data(DATA_KEY, data);
        }

        if (typeof config === 'number') {
          data.to(config);
        } else if (typeof action === 'string') {
          if (typeof data[action] === 'undefined') {
            throw new TypeError("No method named \"" + action + "\"");
          }

          data[action]();
        } else if (_config.interval) {
          data.pause();
          data.cycle();
        }
      });
    };

    Carousel._dataApiClickHandler = function _dataApiClickHandler(event) {
      var selector = Util.getSelectorFromElement(this);

      if (!selector) {
        return;
      }

      var target = $$$1(selector)[0];

      if (!target || !$$$1(target).hasClass(ClassName.CAROUSEL)) {
        return;
      }

      var config = _extends({}, $$$1(target).data(), $$$1(this).data());
      var slideIndex = this.getAttribute('data-slide-to');

      if (slideIndex) {
        config.interval = false;
      }

      Carousel._jQueryInterface.call($$$1(target), config);

      if (slideIndex) {
        $$$1(target).data(DATA_KEY).to(slideIndex);
      }

      event.preventDefault();
    };

    _createClass(Carousel, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default;
      }
    }]);
    return Carousel;
  }();
  /**