text: /*!
    * Bootstrap scrollspy.js v1.0.0 (https://github.com/costaleonardo/css-framework-starter)
    * Copyright 2011-2020 CSS Framework Starter Authors (https://github.com/costaleonardo/css-framework-starter/graphs/contributors)
    * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
    */
  (function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('jquery'), require('./util.js')) :
    typeof define === 'function' && define.amd ? define(['jquery', './util.js'], factory) :
    (global = global || self, global.ScrollSpy = factory(global.jQuery, global.Util));
  }(this, (function ($, Util) { 'use strict';
  
    $ = $ && $.hasOwnProperty('default') ? $['default'] : $;
    Util = Util && Util.hasOwnProperty('default') ? Util['default'] : Util;
  
    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 _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;
    }
  
    function ownKeys(object, enumerableOnly) {
      var keys = Object.keys(object);
  
      if (Object.getOwnPropertySymbols) {
        var symbols = Object.getOwnPropertySymbols(object);
        if (enumerableOnly) symbols = symbols.filter(function (sym) {
          return Object.getOwnPropertyDescriptor(object, sym).enumerable;
        });
        keys.push.apply(keys, symbols);
      }
  
      return keys;
    }
  
    function _objectSpread2(target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i] != null ? arguments[i] : {};
  
        if (i % 2) {
          ownKeys(Object(source), true).forEach(function (key) {
            _defineProperty(target, key, source[key]);
          });
        } else if (Object.getOwnPropertyDescriptors) {
          Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
        } else {
          ownKeys(Object(source)).forEach(function (key) {
            Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
          });
        }
      }
  
      return target;
    }
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME = 'scrollspy';
    var VERSION = '4.4.1';
    var DATA_KEY = 'bs.scrollspy';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $.fn[NAME];
    var Default = {
      offset: 10,
      method: 'auto',
      target: ''
    };
    var DefaultType = {
      offset: 'number',
      method: 'string',
      target: '(string|element)'
    };
    var Event = {
      ACTIVATE: "activate" + EVENT_KEY,
      SCROLL: "scroll" + EVENT_KEY,
      LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      DROPDOWN_ITEM: 'dropdown-item',
      DROPDOWN_MENU: 'dropdown-menu',
      ACTIVE: 'active'
    };
    var Selector = {
      DATA_SPY: '[data-spy="scroll"]',
      ACTIVE: '.active',
      NAV_LIST_GROUP: '.nav, .list-group',
      NAV_LINKS: '.nav-link',
      NAV_ITEMS: '.nav-item',
      LIST_ITEMS: '.list-group-item',
      DROPDOWN: '.dropdown',
      DROPDOWN_ITEMS: '.dropdown-item',
      DROPDOWN_TOGGLE: '.dropdown-toggle'
    };
    var OffsetMethod = {
      OFFSET: 'offset',
      POSITION: 'position'
    };
    /**
     * ------------------------------------------------------------------------
     * Class Definition
     * ------------------------------------------------------------------------
     */
  
    var ScrollSpy =
    /*#__PURE__*/
    function () {
      function ScrollSpy(element, config) {
        var _this = this;
  
        this._element = element;
        this._scrollElement = element.tagName === 'BODY' ? window : element;
        this._config = this._getConfig(config);
        this._selector = this._config.target + " " + Selector.NAV_LINKS + "," + (this._config.target + " " + Selector.LIST_ITEMS + ",") + (this._config.target + " " + Selector.DROPDOWN_ITEMS);
        this._offsets = [];
        this._targets = [];
        this._activeTarget = null;
        this._scrollHeight = 0;
        $(this._scrollElement).on(Event.SCROLL, function (event) {
          return _this._process(event);
        });
        this.refresh();
  
        this._process();
      } // Getters
  
  
      var _proto = ScrollSpy.prototype;
  
      // Public
      _proto.refresh = function refresh() {
        var _this2 = this;
  
        var autoMethod = this._scrollElement === this._scrollElement.window ? OffsetMethod.OFFSET : OffsetMethod.POSITION;
        var offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
        var offsetBase = offsetMethod === OffsetMethod.POSITION ? this._getScrollTop() : 0;
        this._offsets = [];
        this._targets = [];
        this._scrollHeight = this._getScrollHeight();
        var targets = [].slice.call(document.querySelectorAll(this._selector));
        targets.map(function (element) {
          var target;
          var targetSelector = Util.getSelectorFromElement(element);
  
          if (targetSelector) {
            target = document.querySelector(targetSelector);
          }
  
          if (target) {
            var targetBCR = target.getBoundingClientRect();
  
            if (targetBCR.width || targetBCR.height) {
              // TODO (fat): remove sketch reliance on jQuery position/offset
              return [$(target)[offsetMethod]().top + offsetBase, targetSelector];
            }
          }
  
          return null;
        }).filter(function (item) {
          return item;
        }).sort(function (a, b) {
          return a[0] - b[0];
        }).forEach(function (item) {
          _this2._offsets.push(item[0]);
  
          _this2._targets.push(item[1]);
        });
      };
  
      _proto.dispose = function dispose() {
        $.removeData(this._element, DATA_KEY);
        $(this._scrollElement).off(EVENT_KEY);
        this._element = null;
        this._scrollElement = null;
        this._config = null;
        this._selector = null;
        this._offsets = null;
        this._targets = null;
        this._activeTarget = null;
        this._scrollHeight = null;
      } // Private
      ;
  
      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread2({}, Default, {}, typeof config === 'object' && config ? config : {});
  
        if (typeof config.target !== 'string') {
          var id = $(config.target).attr('id');
  
          if (!id) {
            id = Util.getUID(NAME);
            $(config.target).attr('id', id);
          }
  
          config.target = "#" + id;
        }
  
        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      };
  
      _proto._getScrollTop = function _getScrollTop() {
        return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
      };
  
      _proto._getScrollHeight = function _getScrollHeight() {
        return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
      };
  
      _proto._getOffsetHeight = function _getOffsetHeight() {
        return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
      };
  
      _proto._process = function _process() {
        var scrollTop = this._getScrollTop() + this._config.offset;
  
        var scrollHeight = this._getScrollHeight();
  
        var maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();
  
        if (this._scrollHeight !== scrollHeight) {
          this.refresh();
        }
  
        if (scrollTop >= maxScroll) {
          var target = this._targets[this._targets.length - 1];
  
          if (this._activeTarget !== target) {
            this._activate(target);
          }
  
          return;
        }
  
        if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
          this._activeTarget = null;
  
          this._clear();
  
          return;
        }
  
        var offsetLength = this._offsets.length;
  
        for (var i = offsetLength; i--;) {
          var isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);
  
          if (isActiveTarget) {
            this._activate(this._targets[i]);
          }
        }
      };
  
      _proto._activate = function _activate(target) {
        this._activeTarget = target;
  
        this._clear();
  
        var queries = this._selector.split(',').map(function (selector) {
          return selector + "[data-target=\"" + target + "\"]," + selector + "[href=\"" + target + "\"]";
        });
  
        var $link = $([].slice.call(document.querySelectorAll(queries.join(','))));
  
        if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {
          $link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE);
          $link.addClass(ClassName.ACTIVE);
        } else {
          // Set triggered link as active
          $link.addClass(ClassName.ACTIVE); // Set triggered links parents as active
          // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
  
          $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_LINKS + ", " + Selector.LIST_ITEMS).addClass(ClassName.ACTIVE); // Handle special case when .nav-link is inside .nav-item
  
          $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE);
        }
  
        $(this._scrollElement).trigger(Event.ACTIVATE, {
          relatedTarget: target
        });
      };
  
      _proto._clear = function _clear() {
        [].slice.call(document.querySelectorAll(this._selector)).filter(function (node) {
          return node.classList.contains(ClassName.ACTIVE);
        }).forEach(function (node) {
          return node.classList.remove(ClassName.ACTIVE);
        });
      } // Static
      ;
  
      ScrollSpy._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY);
  
          var _config = typeof config === 'object' && config;
  
          if (!data) {
            data = new ScrollSpy(this, _config);
            $(this).data(DATA_KEY, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config]();
          }
        });
      };
  
      _createClass(ScrollSpy, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }]);
  
      return ScrollSpy;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(window).on(Event.LOAD_DATA_API, function () {
      var scrollSpys = [].slice.call(document.querySelectorAll(Selector.DATA_SPY));
      var scrollSpysLength = scrollSpys.length;
  
      for (var i = scrollSpysLength; i--;) {
        var $spy = $(scrollSpys[i]);
  
        ScrollSpy._jQueryInterface.call($spy, $spy.data());
      }
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME] = ScrollSpy._jQueryInterface;
    $.fn[NAME].Constructor = ScrollSpy;
  
    $.fn[NAME].noConflict = function () {
      $.fn[NAME] = JQUERY_NO_CONFLICT;
      return ScrollSpy._jQueryInterface;
    };
  
    return ScrollSpy;
  
  })));
  //# sourceMappingURL=scrollspy.js.map
  