bootstrap.js

       * `document` has 2 events `Event.FOCUSIN` and `Event.CLICK_DATA_API`
       * Do not move `document` in `htmlElements` array
       * It will remove `Event.CLICK_DATA_API` event that should remain
       */

      EventHandler.off(document, Event$6.FOCUSIN);
      Data.removeData(this._element, DATA_KEY$5);
      this._config = null;
      this._element = null;
      this._dialog = null;
      this._backdrop = null;
      this._isShown = null;
      this._isBodyOverflowing = null;
      this._ignoreBackdropClick = null;
      this._isTransitioning = null;
      this._scrollbarWidth = null;
    };

    _proto.handleUpdate = function handleUpdate() {
      this._adjustDialog();
    } // Private
    ;

    _proto._getConfig = function _getConfig(config) {
      config = _objectSpread2({}, Default$3, {}, config);
      typeCheckConfig(NAME$5, config, DefaultType$3);
      return config;
    };

    _proto._showElement = function _showElement(relatedTarget) {
      var _this3 = this;

      var transition = this._element.classList.contains(ClassName$5.FADE);

      var modalBody = SelectorEngine.findOne(Selector$5.MODAL_BODY, this._dialog);

      if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
        // Don't move modal's DOM position
        document.body.appendChild(this._element);
      }

      this._element.style.display = 'block';

      this._element.removeAttribute('aria-hidden');

      this._element.setAttribute('aria-modal', true);

      if (this._dialog.classList.contains(ClassName$5.SCROLLABLE) && modalBody) {
        modalBody.scrollTop = 0;
      } else {
        this._element.scrollTop = 0;
      }

      if (transition) {
        reflow(this._element);
      }

      this._element.classList.add(ClassName$5.SHOW);

      if (this._config.focus) {
        this._enforceFocus();
      }

      var transitionComplete = function transitionComplete() {
        if (_this3._config.focus) {
          _this3._element.focus();
        }

        _this3._isTransitioning = false;
        EventHandler.trigger(_this3._element, Event$6.SHOWN, {
          relatedTarget: relatedTarget
        });
      };

      if (transition) {
        var transitionDuration = getTransitionDurationFromElement(this._dialog);
        EventHandler.one(this._dialog, TRANSITION_END, transitionComplete);
        emulateTransitionEnd(this._dialog, transitionDuration);
      } else {
        transitionComplete();
      }
    };

    _proto._enforceFocus = function _enforceFocus() {
      var _this4 = this;

      EventHandler.off(document, Event$6.FOCUSIN); // guard against infinite focus loop

      EventHandler.on(document, Event$6.FOCUSIN, function (event) {
        if (document !== event.target && _this4._element !== event.target && !_this4._element.contains(event.target)) {
          _this4._element.focus();
        }
      });
    };

    _proto._setEscapeEvent = function _setEscapeEvent() {
      var _this5 = this;

      if (this._isShown && this._config.keyboard) {
        EventHandler.on(this._element, Event$6.KEYDOWN_DISMISS, function (event) {
          if (event.which === ESCAPE_KEYCODE$1) {
            event.preventDefault();

            _this5.hide();
          }
        });
      } else {
        EventHandler.off(this._element, Event$6.KEYDOWN_DISMISS);
      }
    };

    _proto._setResizeEvent = function _setResizeEvent() {
      var _this6 = this;

      if (this._isShown) {
        EventHandler.on(window, Event$6.RESIZE, function () {
          return _this6._adjustDialog();
        });
      } else {
        EventHandler.off(window, Event$6.RESIZE);
      }
    };

    _proto._hideModal = function _hideModal() {
      var _this7 = this;

      this._element.style.display = 'none';

      this._element.setAttribute('aria-hidden', true);

      this._element.removeAttribute('aria-modal');

      this._isTransitioning = false;

      this._showBackdrop(function () {
        document.body.classList.remove(ClassName$5.OPEN);

        _this7._resetAdjustments();

        _this7._resetScrollbar();

        EventHandler.trigger(_this7._element, Event$6.HIDDEN);
      });
    };

    _proto._removeBackdrop = function _removeBackdrop() {
      this._backdrop.parentNode.removeChild(this._backdrop);

      this._backdrop = null;
    };

    _proto._showBackdrop = function _showBackdrop(callback) {
      var _this8 = this;

      var animate = this._element.classList.contains(ClassName$5.FADE) ? ClassName$5.FADE : '';

      if (this._isShown && this._config.backdrop) {
        this._backdrop = document.createElement('div');
        this._backdrop.className = ClassName$5.BACKDROP;

        if (animate) {
          this._backdrop.classList.add(animate);
        }

        document.body.appendChild(this._backdrop);
        EventHandler.on(this._element, Event$6.CLICK_DISMISS, function (event) {
          if (_this8._ignoreBackdropClick) {
            _this8._ignoreBackdropClick = false;
            return;
          }

          if (event.target !== event.currentTarget) {
            return;
          }

          if (_this8._config.backdrop === 'static') {
            _this8._element.focus();
          } else {
            _this8.hide();
          }
        });

        if (animate) {
          reflow(this._backdrop);
        }

        this._backdrop.classList.add(ClassName$5.SHOW);

        if (!animate) {
          callback();
          return;
        }

        var backdropTransitionDuration = getTransitionDurationFromElement(this._backdrop);
        EventHandler.one(this._backdrop, TRANSITION_END, callback);
        emulateTransitionEnd(this._backdrop, backdropTransitionDuration);
      } else if (!this._isShown && this._backdrop) {
        this._backdrop.classList.remove(ClassName$5.SHOW);

        var callbackRemove = function callbackRemove() {
          _this8._removeBackdrop();

          callback();
        };

        if (this._element.classList.contains(ClassName$5.FADE)) {
          var _backdropTransitionDuration = getTransitionDurationFromElement(this._backdrop);

          EventHandler.one(this._backdrop, TRANSITION_END, callbackRemove);
          emulateTransitionEnd(this._backdrop, _backdropTransitionDuration);
        } else {
          callbackRemove();
        }
      } else {
        callback();
      }
    } // ----------------------------------------------------------------------
    // the following methods are used to handle overflowing modals
    // ----------------------------------------------------------------------
    ;

    _proto._adjustDialog = function _adjustDialog() {
      var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;

      if (!this._isBodyOverflowing && isModalOverflowing) {
        this._element.style.paddingLeft = this._scrollbarWidth + "px";
      }

      if (this._isBodyOverflowing && !isModalOverflowing) {
        this._element.style.paddingRight = this._scrollbarWidth + "px";
      }
    };

    _proto._resetAdjustments = function _resetAdjustments() {
      this._element.style.paddingLeft = '';
      this._element.style.paddingRight = '';
    };

    _proto._checkScrollbar = function _checkScrollbar() {
      var rect = document.body.getBoundingClientRect();
      this._isBodyOverflowing = rect.left + rect.right < window.innerWidth;
      this._scrollbarWidth = this._getScrollbarWidth();
    };

    _proto._setScrollbar = function _setScrollbar() {
      var _this9 = this;

      if (this._isBodyOverflowing) {
        // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
        //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
        // Adjust fixed content padding
        makeArray(SelectorEngine.find(Selector$5.FIXED_CONTENT)).forEach(function (element) {
          var actualPadding = element.style.paddingRight;
          var calculatedPadding = window.getComputedStyle(element)['padding-right'];
          Manipulator.setDataAttribute(element, 'padding-right', actualPadding);
          element.style.paddingRight = parseFloat(calculatedPadding) + _this9._scrollbarWidth + "px";
        }); // Adjust sticky content margin

        makeArray(SelectorEngine.find(Selector$5.STICKY_CONTENT)).forEach(function (element) {
          var actualMargin = element.style.marginRight;
          var calculatedMargin = window.getComputedStyle(element)['margin-right'];
          Manipulator.setDataAttribute(element, 'margin-right', actualMargin);
          element.style.marginRight = parseFloat(calculatedMargin) - _this9._scrollbarWidth + "px";
        }); // Adjust body padding

        var actualPadding = document.body.style.paddingRight;
        var calculatedPadding = window.getComputedStyle(document.body)['padding-right'];
        Manipulator.setDataAttribute(document.body, 'padding-right', actualPadding);
        document.body.style.paddingRight = parseFloat(calculatedPadding) + this._scrollbarWidth + "px";
      }

      document.body.classList.add(ClassName$5.OPEN);
    };

    _proto._resetScrollbar = function _resetScrollbar() {
      // Restore fixed content padding
      makeArray(SelectorEngine.find(Selector$5.FIXED_CONTENT)).forEach(function (element) {
        var padding = Manipulator.getDataAttribute(element, 'padding-right');

        if (typeof padding !== 'undefined') {
          Manipulator.removeDataAttribute(element, 'padding-right');
          element.style.paddingRight = padding;
        }
      }); // Restore sticky content and navbar-toggler margin

      makeArray(SelectorEngine.find("" + Selector$5.STICKY_CONTENT)).forEach(function (element) {
        var margin = Manipulator.getDataAttribute(element, 'margin-right');

        if (typeof margin !== 'undefined') {
          Manipulator.removeDataAttribute(element, 'margin-right');
          element.style.marginRight = margin;
        }
      }); // Restore body padding

      var padding = Manipulator.getDataAttribute(document.body, 'padding-right');

      if (typeof padding === 'undefined') {
        document.body.style.paddingRight = '';
      } else {
        Manipulator.removeDataAttribute(document.body, 'padding-right');
        document.body.style.paddingRight = padding;
      }
    };

    _proto._getScrollbarWidth = function _getScrollbarWidth() {
      // thx d.walsh
      var scrollDiv = document.createElement('div');
      scrollDiv.className = ClassName$5.SCROLLBAR_MEASURER;
      document.body.appendChild(scrollDiv);
      var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
      document.body.removeChild(scrollDiv);
      return scrollbarWidth;
    } // Static
    ;

    Modal.jQueryInterface = function jQueryInterface(config, relatedTarget) {
      return this.each(function () {
        var data = Data.getData(this, DATA_KEY$5);

        var _config = _objectSpread2({}, Default$3, {}, Manipulator.getDataAttributes(this), {}, typeof config === 'object' && config ? config : {});

        if (!data) {
          data = new Modal(this, _config);
        }

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

          data[config](relatedTarget);
        } else if (_config.show) {
          data.show(relatedTarget);
        }
      });
    };

    Modal.getInstance = function getInstance(element) {
      return Data.getData(element, DATA_KEY$5);
    };

    _createClass(Modal, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$5;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$3;
      }
    }]);

    return Modal;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  EventHandler.on(document, Event$6.CLICK_DATA_API, Selector$5.DATA_TOGGLE, function (event) {
    var _this10 = this;

    var target = getElementFromSelector(this);

    if (this.tagName === 'A' || this.tagName === 'AREA') {
      event.preventDefault();
    }

    EventHandler.one(target, Event$6.SHOW, function (showEvent) {
      if (showEvent.defaultPrevented) {
        // only register focus restorer if modal will actually get shown
        return;
      }

      EventHandler.one(target, Event$6.HIDDEN, function () {
        if (isVisible(_this10)) {
          _this10.focus();
        }
      });
    });
    var data = Data.getData(target, DATA_KEY$5);

    if (!data) {
      var config = _objectSpread2({}, Manipulator.getDataAttributes(target), {}, Manipulator.getDataAttributes(this));

      data = new Modal(target, config);
    }

    data.show(this);
  });
  var $$6 = getjQuery();
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   * add .modal to jQuery only if jQuery is present
   */

  /* istanbul ignore if */

  if ($$6) {
    var JQUERY_NO_CONFLICT$5 = $$6.fn[NAME$5];
    $$6.fn[NAME$5] = Modal.jQueryInterface;
    $$6.fn[NAME$5].Constructor = Modal;

    $$6.fn[NAME$5].noConflict = function () {
      $$6.fn[NAME$5] = JQUERY_NO_CONFLICT$5;
      return Modal.jQueryInterface;
    };
  }

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.3.1): util/sanitizer.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */
  var uriAttrs = ['background', 'cite', 'href', 'itemtype', 'longdesc', 'poster', 'src', 'xlink:href'];
  var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;
  /**
   * A pattern that recognizes a commonly useful subset of URLs that are safe.
   *
   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
   */

  var SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi;
  /**
   * A pattern that matches safe data URLs. Only matches image, video and audio types.
   *
   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
   */

  var DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i;

  var allowedAttribute = function allowedAttribute(attr, allowedAttributeList) {
    var attrName = attr.nodeName.toLowerCase();

    if (allowedAttributeList.indexOf(attrName) !== -1) {
      if (uriAttrs.indexOf(attrName) !== -1) {
        return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN));
      }

      return true;
    }

    var regExp = allowedAttributeList.filter(function (attrRegex) {
      return attrRegex instanceof RegExp;
    }); // Check if a regular expression validates the attribute.

    for (var i = 0, l = regExp.length; i < l; i++) {
      if (attrName.match(regExp[i])) {
        return true;
      }
    }

    return false;
  };

  var DefaultWhitelist = {
    // Global attributes allowed on any supplied element below.
    '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
    a: ['target', 'href', 'title', 'rel'],
    area: [],
    b: [],
    br: [],
    col: [],
    code: [],
    div: [],
    em: [],
    hr: [],
    h1: [],
    h2: [],
    h3: [],
    h4: [],
    h5: [],
    h6: [],
    i: [],
    img: ['src', 'alt', 'title', 'width', 'height'],
    li: [],
    ol: [],
    p: [],
    pre: [],
    s: [],
    small: [],
    span: [],
    sub: [],
    sup: [],
    strong: [],
    u: [],
    ul: []
  };
  function sanitizeHtml(unsafeHtml, whiteList, sanitizeFn) {
    if (!unsafeHtml.length) {
      return unsafeHtml;
    }

    if (sanitizeFn && typeof sanitizeFn === 'function') {
      return sanitizeFn(unsafeHtml);
    }

    var domParser = new window.DOMParser();
    var createdDocument = domParser.parseFromString(unsafeHtml, 'text/html');
    var whitelistKeys = Object.keys(whiteList);
    var elements = makeArray(createdDocument.body.querySelectorAll('*'));

    var _loop = function _loop(i, len) {
      var el = elements[i];
      var elName = el.nodeName.toLowerCase();

      if (whitelistKeys.indexOf(elName) === -1) {
        el.parentNode.removeChild(el);
        return "continue";
      }

      var attributeList = makeArray(el.attributes);
      var whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || []);
      attributeList.forEach(function (attr) {
        if (!allowedAttribute(attr, whitelistedAttributes)) {
          el.removeAttribute(attr.nodeName);
        }
      });
    };

    for (var i = 0, len = elements.length; i < len; i++) {
      var _ret = _loop(i);

      if (_ret === "continue") continue;
    }

    return createdDocument.body.innerHTML;
  }

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$6 = 'tooltip';
  var VERSION$6 = '4.3.1';
  var DATA_KEY$6 = 'bs.tooltip';
  var EVENT_KEY$6 = "." + DATA_KEY$6;
  var CLASS_PREFIX = 'bs-tooltip';
  var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');
  var DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn'];
  var DefaultType$4 = {
    animation: 'boolean',
    template: 'string',
    title: '(string|element|function)',
    trigger: 'string',
    delay: '(number|object)',
    html: 'boolean',
    selector: '(string|boolean)',
    placement: '(string|function)',
    offset: '(number|string|function)',
    container: '(string|element|boolean)',
    fallbackPlacement: '(string|array)',
    boundary: '(string|element)',
    sanitize: 'boolean',
    sanitizeFn: '(null|function)',
    whiteList: 'object',
    popperConfig: '(null|object)'
  };
  var AttachmentMap$1 = {
    AUTO: 'auto',
    TOP: 'top',
    RIGHT: 'right',
    BOTTOM: 'bottom',
    LEFT: 'left'
  };
  var Default$4 = {
    animation: true,
    template: '<div class="tooltip" role="tooltip">' + '<div class="tooltip-arrow"></div>' + '<div class="tooltip-inner"></div></div>',
    trigger: 'hover focus',
    title: '',
    delay: 0,
    html: false,
    selector: false,
    placement: 'top',
    offset: 0,
    container: false,
    fallbackPlacement: 'flip',
    boundary: 'scrollParent',
    sanitize: true,
    sanitizeFn: null,
    whiteList: DefaultWhitelist,
    popperConfig: null
  };
  var HoverState = {
    SHOW: 'show',
    OUT: 'out'
  };
  var Event$7 = {
    HIDE: "hide" + EVENT_KEY$6,
    HIDDEN: "hidden" + EVENT_KEY$6,
    SHOW: "show" + EVENT_KEY$6,
    SHOWN: "shown" + EVENT_KEY$6,
    INSERTED: "inserted" + EVENT_KEY$6,
    CLICK: "click" + EVENT_KEY$6,
    FOCUSIN: "focusin" + EVENT_KEY$6,
    FOCUSOUT: "focusout" + EVENT_KEY$6,
    MOUSEENTER: "mouseenter" + EVENT_KEY$6,
    MOUSELEAVE: "mouseleave" + EVENT_KEY$6
  };
  var ClassName$6 = {
    FADE: 'fade',
    SHOW: 'show'
  };
  var Selector$6 = {
    TOOLTIP_INNER: '.tooltip-inner'
  };
  var Trigger = {
    HOVER: 'hover',
    FOCUS: 'focus',
    CLICK: 'click',
    MANUAL: 'manual'
  };
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Tooltip =
  /*#__PURE__*/
  function () {
    function Tooltip(element, config) {
      if (typeof Popper === 'undefined') {
        throw new TypeError('Bootstrap\'s tooltips require Popper.js (https://popper.js.org)');
      } // private


      this._isEnabled = true;
      this._timeout = 0;
      this._hoverState = '';
      this._activeTrigger = {};
      this._popper = null; // Protected

      this.element = element;
      this.config = this._getConfig(config);
      this.tip = null;

      this._setListeners();

      Data.setData(element, this.constructor.DATA_KEY, this);
    } // Getters


    var _proto = Tooltip.prototype;

    // Public
    _proto.enable = function enable() {
      this._isEnabled = true;
    };

    _proto.disable = function disable() {
      this._isEnabled = false;
    };

    _proto.toggleEnabled = function toggleEnabled() {
      this._isEnabled = !this._isEnabled;
    };

    _proto.toggle = function toggle(event) {
      if (!this._isEnabled) {
        return;
      }

      if (event) {
        var dataKey = this.constructor.DATA_KEY;
        var context = Data.getData(event.delegateTarget, dataKey);

        if (!context) {
          context = new this.constructor(event.delegateTarget, this._getDelegateConfig());
          Data.setData(event.delegateTarget, dataKey, context);
        }

        context._activeTrigger.click = !context._activeTrigger.click;

        if (context._isWithActiveTrigger()) {
          context._enter(null, context);
        } else {
          context._leave(null, context);
        }
      } else {
        if (this.getTipElement().classList.contains(ClassName$6.SHOW)) {
          this._leave(null, this);

          return;
        }

        this._enter(null, this);
      }
    };

    _proto.dispose = function dispose() {
      clearTimeout(this._timeout);
      Data.removeData(this.element, this.constructor.DATA_KEY);
      EventHandler.off(this.element, this.constructor.EVENT_KEY);
      EventHandler.off(SelectorEngine.closest(this.element, '.modal'), 'hide.bs.modal', this._hideModalHandler);

      if (this.tip) {
        this.tip.parentNode.removeChild(this.tip);
      }

      this._isEnabled = null;
      this._timeout = null;
      this._hoverState = null;
      this._activeTrigger = null;

      if (this._popper) {
        this._popper.destroy();
      }

      this._popper = null;
      this.element = null;
      this.config = null;
      this.tip = null;
    };

    _proto.show = function show() {
      var _this = this;

      if (this.element.style.display === 'none') {
        throw new Error('Please use show on visible elements');
      }

      if (this.isWithContent() && this._isEnabled) {
        var showEvent = EventHandler.trigger(this.element, this.constructor.Event.SHOW);
        var shadowRoot = findShadowRoot(this.element);
        var isInTheDom = shadowRoot === null ? this.element.ownerDocument.documentElement.contains(this.element) : shadowRoot.contains(this.element);

        if (showEvent.defaultPrevented || !isInTheDom) {
          return;
        }

        var tip = this.getTipElement();
        var tipId = getUID(this.constructor.NAME);
        tip.setAttribute('id', tipId);
        this.element.setAttribute('aria-describedby', tipId);
        this.setContent();

        if (this.config.animation) {
          tip.classList.add(ClassName$6.FADE);
        }

        var placement = typeof this.config.placement === 'function' ? this.config.placement.call(this, tip, this.element) : this.config.placement;

        var attachment = this._getAttachment(placement);

        this._addAttachmentClass(attachment);

        var container = this._getContainer();

        Data.setData(tip, this.constructor.DATA_KEY, this);

        if (!this.element.ownerDocument.documentElement.contains(this.tip)) {
          container.appendChild(tip);
        }

        EventHandler.trigger(this.element, this.constructor.Event.INSERTED);
        this._popper = new Popper(this.element, tip, this._getPopperConfig(attachment));
        tip.classList.add(ClassName$6.SHOW); // If this is a touch-enabled device we add extra
        // empty mouseover listeners to the body's immediate children;
        // only needed because of broken event delegation on iOS
        // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html

        if ('ontouchstart' in document.documentElement) {
          makeArray(document.body.children).forEach(function (element) {
            EventHandler.on(element, 'mouseover', noop());
          });
        }

        var complete = function complete() {
          if (_this.config.animation) {
            _this._fixTransition();
          }

          var prevHoverState = _this._hoverState;
          _this._hoverState = null;
          EventHandler.trigger(_this.element, _this.constructor.Event.SHOWN);

          if (prevHoverState === HoverState.OUT) {
            _this._leave(null, _this);
          }
        };

        if (this.tip.classList.contains(ClassName$6.FADE)) {
          var transitionDuration = getTransitionDurationFromElement(this.tip);
          EventHandler.one(this.tip, TRANSITION_END, complete);
          emulateTransitionEnd(this.tip, transitionDuration);
        } else {
          complete();
        }
      }
    };

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

      var tip = this.getTipElement();

      var complete = function complete() {
        if (_this2._hoverState !== HoverState.SHOW && tip.parentNode) {
          tip.parentNode.removeChild(tip);
        }

        _this2._cleanTipClass();

        _this2.element.removeAttribute('aria-describedby');

        EventHandler.trigger(_this2.element, _this2.constructor.Event.HIDDEN);

        _this2._popper.destroy();
      };

      var hideEvent = EventHandler.trigger(this.element, this.constructor.Event.HIDE);

      if (hideEvent.defaultPrevented) {
        return;
      }

      tip.classList.remove(ClassName$6.SHOW); // If this is a touch-enabled device we remove the extra
      // empty mouseover listeners we added for iOS support

      if ('ontouchstart' in document.documentElement) {
        makeArray(document.body.children).forEach(function (element) {
          return EventHandler.off(element, 'mouseover', noop);
        });
      }

      this._activeTrigger[Trigger.CLICK] = false;
      this._activeTrigger[Trigger.FOCUS] = false;
      this._activeTrigger[Trigger.HOVER] = false;

      if (this.tip.classList.contains(ClassName$6.FADE)) {
        var transitionDuration = getTransitionDurationFromElement(tip);
        EventHandler.one(tip, TRANSITION_END, complete);
        emulateTransitionEnd(tip, transitionDuration);
      } else {
        complete();
      }

      this._hoverState = '';
    };

    _proto.update = function update() {
      if (this._popper !== null) {
        this._popper.scheduleUpdate();
      }
    } // Protected
    ;

    _proto.isWithContent = function isWithContent() {
      return Boolean(this.getTitle());
    };

    _proto.getTipElement = function getTipElement() {
      if (this.tip) {
        return this.tip;
      }

      var element = document.createElement('div');
      element.innerHTML = this.config.template;
      this.tip = element.children[0];
      return this.tip;
    };

    _proto.setContent = function setContent() {
      var tip = this.getTipElement();
      this.setElementContent(SelectorEngine.findOne(Selector$6.TOOLTIP_INNER, tip), this.getTitle());
      tip.classList.remove(ClassName$6.FADE);
      tip.classList.remove(ClassName$6.SHOW);
    };

    _proto.setElementContent = function setElementContent(element, content) {
      if (element === null) {
        return;
      }

      if (typeof content === 'object' && isElement(content)) {
        if (content.jquery) {
          content = content[0];
        } // content is a DOM node or a jQuery


        if (this.config.html) {
          if (content.parentNode !== element) {
            element.innerHTML = '';
            element.appendChild(content);
          }
        } else {
          element.innerText = content.textContent;
        }

        return;
      }

      if (this.config.html) {
        if (this.config.sanitize) {
          content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn);
        }

        element.innerHTML = content;
      } else {
        element.innerText = content;
      }
    };

    _proto.getTitle = function getTitle() {
      var title = this.element.getAttribute('data-original-title');

      if (!title) {
        title = typeof this.config.title === 'function' ? this.config.title.call(this.element) : this.config.title;
      }

      return title;
    } // Private
    ;

    _proto._getPopperConfig = function _getPopperConfig(attachment) {
      var _this3 = this;

      var defaultBsConfig = {
        placement: attachment,
        modifiers: {
          offset: this._getOffset(),
          flip: {
            behavior: this.config.fallbackPlacement
          },
          arrow: {
            element: "." + this.constructor.NAME + "-arrow"
          },
          preventOverflow: {
            boundariesElement: this.config.boundary
          }
        },
        onCreate: function onCreate(data) {
          if (data.originalPlacement !== data.placement) {
            _this3._handlePopperPlacementChange(data);
          }
        },
        onUpdate: function onUpdate(data) {
          return _this3._handlePopperPlacementChange(data);
        }
      };
      return _objectSpread2({}, defaultBsConfig, {}, this.config.popperConfig);
    };

    _proto._addAttachmentClass = function _addAttachmentClass(attachment) {
      this.getTipElement().classList.add(CLASS_PREFIX + "-" + attachment);
    };

    _proto._getOffset = function _getOffset() {
      var _this4 = this;

      var offset = {};

      if (typeof this.config.offset === 'function') {
        offset.fn = function (data) {
          data.offsets = _objectSpread2({}, data.offsets, {}, _this4.config.offset(data.offsets, _this4.element) || {});
          return data;
        };
      } else {
        offset.offset = this.config.offset;
      }

      return offset;
    };

    _proto._getContainer = function _getContainer() {
      if (this.config.container === false) {
        return document.body;
      }

      if (isElement(this.config.container)) {
        return this.config.container;
      }

      return SelectorEngine.findOne(this.config.container);
    };

    _proto._getAttachment = function _getAttachment(placement) {
      return AttachmentMap$1[placement.toUpperCase()];
    };

    _proto._setListeners = function _setListeners() {
      var _this5 = this;

      var triggers = this.config.trigger.split(' ');
      triggers.forEach(function (trigger) {
        if (trigger === 'click') {
          EventHandler.on(_this5.element, _this5.constructor.Event.CLICK, _this5.config.selector, function (event) {
            return _this5.toggle(event);
          });
        } else if (trigger !== Trigger.MANUAL) {
          var eventIn = trigger === Trigger.HOVER ? _this5.constructor.Event.MOUSEENTER : _this5.constructor.Event.FOCUSIN;