(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  (global.bootstrapVue = factory());
}(this, (function () { 'use strict';

  var __assign = Object.assign || function (e) {
    for (var a, s = 1, t = arguments.length; s < t; s++) {
      for (var r in a = arguments[s]) {
        Object.prototype.hasOwnProperty.call(a, r) && (e[r] = a[r]);
      }
    }return e;
  };function mergeData() {
    for (var e, a, s = {}, t = arguments.length; t--;) {
      for (var r = 0, c = Object.keys(arguments[t]); r < c.length; r++) {
        switch (e = c[r]) {case "class":case "style":case "directives":
            Array.isArray(s[e]) || (s[e] = []), s[e] = s[e].concat(arguments[t][e]);break;case "staticClass":
            if (!arguments[t][e]) break;void 0 === s[e] && (s[e] = ""), s[e] && (s[e] += " "), s[e] += arguments[t][e].trim();break;case "on":case "nativeOn":
            s[e] || (s[e] = {});for (var o = 0, n = Object.keys(arguments[t][e] || {}); o < n.length; o++) {
              a = n[o], s[e][a] ? s[e][a] = [].concat(s[e][a], arguments[t][e][a]) : s[e][a] = arguments[t][e][a];
            }break;case "attrs":case "props":case "domProps":case "scopedSlots":case "staticStyle":case "hook":case "transition":
            s[e] || (s[e] = {}), s[e] = __assign({}, arguments[t][e], s[e]);break;case "slot":case "key":case "ref":case "tag":case "show":case "keepAlive":default:
            s[e] || (s[e] = arguments[t][e]);}
      }
    }return s;
  }

  var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
  };

  var classCallCheck = function (instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  };

  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;
    };
  }();

  var defineProperty = function (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;
  };

  var inherits = function (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;
  };

  var possibleConstructorReturn = function (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;
  };

  var toConsumableArray = function (arr) {
    if (Array.isArray(arr)) {
      for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];

      return arr2;
    } else {
      return Array.from(arr);
    }
  };

  var props = {
    disabled: {
      type: Boolean,
      default: false
    },
    ariaLabel: {
      type: String,
      default: 'Close'
    },
    textVariant: {
      type: String,
      default: null
    }
  };

  var bBtnClose = {
    functional: true,
    props: props,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          listeners = _ref.listeners,
          slots = _ref.slots;

      var componentData = {
        staticClass: 'close',
        class: defineProperty({}, 'text-' + props.textVariant, props.textVariant),
        attrs: {
          type: 'button',
          disabled: props.disabled,
          'aria-label': props.ariaLabel ? String(props.ariaLabel) : null
        },
        on: {
          click: function click(e) {
            // Ensure click on button HTML content is also disabled
            if (props.disabled && e instanceof Event) {
              e.stopPropagation();
              e.preventDefault();
            }
          }
        }
        // Careful not to override the slot with innerHTML
      };if (!slots().default) {
        componentData.domProps = { innerHTML: '&times;' };
      }
      return h('button', mergeData(data, componentData), slots().default);
    }
  };

  var bAlert = {
    components: { bButtonClose: bBtnClose },
    render: function render(h) {
      if (!this.localShow) {
        // If not showing, render placeholder
        return h(false);
      }
      var dismissBtn = h(false);
      if (this.dismissible) {
        // Add dismiss button
        dismissBtn = h('b-button-close', { attrs: { 'aria-label': this.dismissLabel }, on: { click: this.dismiss } }, [this.$slots.dismiss]);
      }
      var alert = h('div', { class: this.classObject, attrs: { role: 'alert', 'aria-live': 'polite', 'aria-atomic': true } }, [dismissBtn, this.$slots.default]);
      return !this.fade ? alert : h('transition', { props: { name: 'fade', appear: true } }, [alert]);
    },

    model: {
      prop: 'show',
      event: 'input'
    },
    data: function data() {
      return {
        countDownTimerId: null,
        dismissed: false
      };
    },

    computed: {
      classObject: function classObject() {
        return ['alert', this.alertVariant, this.dismissible ? 'alert-dismissible' : ''];
      },
      alertVariant: function alertVariant() {
        var variant = this.variant;
        return 'alert-' + variant;
      },
      localShow: function localShow() {
        return !this.dismissed && (this.countDownTimerId || this.show);
      }
    },
    props: {
      variant: {
        type: String,
        default: 'info'
      },
      dismissible: {
        type: Boolean,
        default: false
      },
      dismissLabel: {
        type: String,
        default: 'Close'
      },
      show: {
        type: [Boolean, Number],
        default: false
      },
      fade: {
        type: Boolean,
        default: false
      }
    },
    watch: {
      show: function show() {
        this.showChanged();
      }
    },
    mounted: function mounted() {
      this.showChanged();
    },
    destroyed /* istanbul ignore next */: function destroyed() {
      this.clearCounter();
    },

    methods: {
      dismiss: function dismiss() {
        this.clearCounter();
        this.dismissed = true;
        this.$emit('dismissed');
        this.$emit('input', false);
        if (typeof this.show === 'number') {
          this.$emit('dismiss-count-down', 0);
          this.$emit('input', 0);
        } else {
          this.$emit('input', false);
        }
      },
      clearCounter: function clearCounter() {
        if (this.countDownTimerId) {
          clearInterval(this.countDownTimerId);
          this.countDownTimerId = null;
        }
      },
      showChanged: function showChanged() {
        var _this = this;

        // Reset counter status
        this.clearCounter();
        // Reset dismiss status
        this.dismissed = false;
        // No timer for boolean values
        if (this.show === true || this.show === false || this.show === null || this.show === 0) {
          return;
        }
        // Start counter
        var dismissCountDown = this.show;
        this.countDownTimerId = setInterval(function () {
          if (dismissCountDown < 1) {
            _this.dismiss();
            return;
          }
          dismissCountDown--;
          _this.$emit('dismiss-count-down', dismissCountDown);
          _this.$emit('input', dismissCountDown);
        }, 1000);
      }
    }
  };

  /**
   * Register a component plugin as being loaded. returns true if compoent plugin already registered
   * @param {object} Vue
   * @param {string} Component name
   * @param {object} Component definition
   */
  function registerComponent(Vue, name, def) {
    Vue._bootstrap_vue_components_ = Vue._bootstrap_vue_components_ || {};
    var loaded = Vue._bootstrap_vue_components_[name];
    if (!loaded && def && name) {
      Vue._bootstrap_vue_components_[name] = true;
      Vue.component(name, def);
    }
    return loaded;
  }

  /**
   * Register a group of components as being loaded.
   * @param {object} Vue
   * @param {object} Object of component definitions
   */
  function registerComponents(Vue, components) {
    for (var component in components) {
      registerComponent(Vue, component, components[component]);
    }
  }

  /**
   * Register a directive as being loaded. returns true if directive plugin already registered
   * @param {object} Vue
   * @param {string} Directive name
   * @param {object} Directive definition
   */
  function registerDirective(Vue, name, def) {
    Vue._bootstrap_vue_directives_ = Vue._bootstrap_vue_directives_ || {};
    var loaded = Vue._bootstrap_vue_directives_[name];
    if (!loaded && def && name) {
      Vue._bootstrap_vue_directives_[name] = true;
      Vue.directive(name, def);
    }
    return loaded;
  }

  /**
   * Register a group of directives as being loaded.
   * @param {object} Vue
   * @param {object} Object of directive definitions
   */
  function registerDirectives(Vue, directives) {
    for (var directive in directives) {
      registerDirective(Vue, directive, directives[directive]);
    }
  }

  /**
   * Install plugin if window.Vue available
   * @param {object} Plugin definition
   */
  function vueUse(VuePlugin) {
    if (typeof window !== 'undefined' && window.Vue) {
      window.Vue.use(VuePlugin);
    }
  }

  var components = {
    bAlert: bAlert
  };

  var VuePlugin = {
    install: function install(Vue) {
      registerComponents(Vue, components);
    }
  };

  vueUse(VuePlugin);

  /**
   * Aliasing Object[method] allows the minifier to shorten methods to a single character variable,
   * as well as giving BV a chance to inject polyfills.
   * As long as we avoid
   * - import * as Object from "utils/object"
   * all unused exports should be removed by tree-shaking.
   */

  // @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
  if (typeof Object.assign !== 'function') {
    Object.assign = function (target, varArgs) {
      // .length of function is 2

      if (target == null) {
        // TypeError if undefined or null
        throw new TypeError('Cannot convert undefined or null to object');
      }

      var to = Object(target);

      for (var index = 1; index < arguments.length; index++) {
        var nextSource = arguments[index];

        if (nextSource != null) {
          // Skip over if undefined or null
          for (var nextKey in nextSource) {
            // Avoid bugs when hasOwnProperty is shadowed
            if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
              to[nextKey] = nextSource[nextKey];
            }
          }
        }
      }
      return to;
    };
  }

  // @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is#Polyfill
  if (!Object.is) {
    Object.is = function (x, y) {
      // SameValue algorithm
      if (x === y) {
        // Steps 1-5, 7-10
        // Steps 6.b-6.e: +0 != -0
        return x !== 0 || 1 / x === 1 / y;
      } else {
        // Step 6.a: NaN == NaN
        // eslint-disable-next-line no-self-compare
        return x !== x && y !== y;
      }
    };
  }

  var assign = Object.assign;
  var keys = Object.keys;
  var defineProperties = Object.defineProperties;
  var defineProperty$1 = Object.defineProperty;
  var create = Object.create;

  function readonlyDescriptor() {
    return { enumerable: true, configurable: false, writable: false };
  }

  // Production steps of ECMA-262, Edition 6, 22.1.2.1
  // es6-ified by @alexsasharegan
  if (!Array.from) {
    Array.from = function () {
      var toStr = Object.prototype.toString;
      var isCallable = function isCallable(fn) {
        return typeof fn === 'function' || toStr.call(fn) === '[object Function]';
      };
      var toInteger = function toInteger(value) {
        var number = Number(value);
        if (isNaN(number)) {
          return 0;
        }
        if (number === 0 || !isFinite(number)) {
          return number;
        }
        return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number));
      };
      var maxSafeInteger = Math.pow(2, 53) - 1;
      var toLength = function toLength(value) {
        return Math.min(Math.max(toInteger(value), 0), maxSafeInteger);
      };

      // The length property of the from method is 1.
      return function from(arrayLike /*, mapFn, thisArg */) {
        // 1. Let C be the this value.
        var C = this;

        // 2. Let items be ToObject(arrayLike).
        var items = Object(arrayLike);

        // 3. ReturnIfAbrupt(items).
        if (arrayLike == null) {
          throw new TypeError('Array.from requires an array-like object - not null or undefined');
        }

        // 4. If mapfn is undefined, then let mapping be false.
        var mapFn = arguments.length > 1 ? arguments[1] : void undefined;
        var T = void 0;

        if (typeof mapFn !== 'undefined') {
          // 5. else
          // 5. a If IsCallable(mapfn) is false, throw a TypeError exception.
          if (!isCallable(mapFn)) {
            throw new TypeError('Array.from: when provided, the second argument must be a function');
          }

          // 5. b. If thisArg was supplied, let T be thisArg; else let T be undefined.
          if (arguments.length > 2) {
            T = arguments[2];
          }
        }

        // 10. Let lenValue be Get(items, "length").
        // 11. Let len be ToLength(lenValue).
        var len = toLength(items.length);

        // 13. If IsConstructor(C) is true, then
        // 13. a. Let A be the result of calling the [[Construct]] internal method
        // of C with an argument list containing the single item len.
        // 14. a. Else, Let A be ArrayCreate(len).
        var A = isCallable(C) ? Object(new C(len)) : new Array(len);

        // 16. Let k be 0.
        var k = 0;
        // 17. Repeat, while k < len… (also steps a - h)
        var kValue = void 0;
        while (k < len) {
          kValue = items[k];
          if (mapFn) {
            A[k] = typeof T === 'undefined' ? mapFn(kValue, k) : mapFn.call(T, kValue, k);
          } else {
            A[k] = kValue;
          }
          k += 1;
        }
        // 18. Let putStatus be Put(A, "length", len, true).
        A.length = len;
        // 20. Return A.
        return A;
      };
    }();
  }

  // https://tc39.github.io/ecma262/#sec-array.prototype.find
  // Needed for IE support
  if (!Array.prototype.find) {
    // eslint-disable-next-line no-extend-native
    Object.defineProperty(Array.prototype, 'find', {
      value: function value(predicate) {
        // 1. Let O be ? ToObject(this value).
        if (this == null) {
          throw new TypeError('"this" is null or not defined');
        }

        var o = Object(this);

        // 2. Let len be ? ToLength(? Get(O, "length")).
        var len = o.length >>> 0;

        // 3. If IsCallable(predicate) is false, throw a TypeError exception.
        if (typeof predicate !== 'function') {
          throw new TypeError('predicate must be a function');
        }

        // 4. If thisArg was supplied, let T be thisArg; else let T be undefined.
        var thisArg = arguments[1];

        // 5. Let k be 0.
        var k = 0;

        // 6. Repeat, while k < len
        while (k < len) {
          // a. Let Pk be ! ToString(k).
          // b. Let kValue be ? Get(O, Pk).
          // c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
          // d. If testResult is true, return kValue.
          var kValue = o[k];
          if (predicate.call(thisArg, kValue, k, o)) {
            return kValue;
          }
          // e. Increase k by 1.
          k++;
        }

        // 7. Return undefined.
        return undefined;
      }
    });
  }

  if (!Array.isArray) {
    Array.isArray = function (arg) {
      return Object.prototype.toString.call(arg) === '[object Array]';
    };
  }

  // Static
  var from = Array.from;
  var isArray = Array.isArray;

  // Instance
  var arrayIncludes = function arrayIncludes(array, value) {
    return array.indexOf(value) !== -1;
  };
  function concat() {
    return Array.prototype.concat.apply([], arguments);
  }

  function identity(x) {
    return x;
  }

  /**
   * Given an array of properties or an object of property keys,
   * plucks all the values off the target object.
   * @param {{}|string[]} keysToPluck
   * @param {{}} objToPluck
   * @param {Function} transformFn
   * @return {{}}
   */
  function pluckProps(keysToPluck, objToPluck) {
    var transformFn = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : identity;

    return (isArray(keysToPluck) ? keysToPluck.slice() : keys(keysToPluck)).reduce(function (memo, prop) {
      // eslint-disable-next-line no-sequences
      return memo[transformFn(prop)] = objToPluck[prop], memo;
    }, {});
  }

  /**
   * The Link component is used in many other BV components.
   * As such, sharing its props makes supporting all its features easier.
   * However, some components need to modify the defaults for their own purpose.
   * Prefer sharing a fresh copy of the props to ensure mutations
   * do not affect other component references to the props.
   *
   * https://github.com/vuejs/vue-router/blob/dev/src/components/link.js
   * @return {{}}
   */
  function propsFactory() {
    return {
      href: {
        type: String,
        default: null
      },
      rel: {
        type: String,
        default: null
      },
      target: {
        type: String,
        default: '_self'
      },
      active: {
        type: Boolean,
        default: false
      },
      activeClass: {
        type: String,
        default: 'active'
      },
      append: {
        type: Boolean,
        default: false
      },
      disabled: {
        type: Boolean,
        default: false
      },
      event: {
        type: [String, Array],
        default: 'click'
      },
      exact: {
        type: Boolean,
        default: false
      },
      exactActiveClass: {
        type: String,
        default: 'active'
      },
      replace: {
        type: Boolean,
        default: false
      },
      routerTag: {
        type: String,
        default: 'a'
      },
      to: {
        type: [String, Object],
        default: null
      }
    };
  }

  function pickLinkProps(propsToPick) {
    var freshLinkProps = propsFactory();
    // Normalize everything to array.
    propsToPick = concat(propsToPick);

    return keys(freshLinkProps).reduce(function (memo, prop) {
      if (arrayIncludes(propsToPick, prop)) {
        memo[prop] = freshLinkProps[prop];
      }

      return memo;
    }, {});
  }

  function computeTag(props, parent) {
    return Boolean(parent.$router) && props.to && !props.disabled ? 'router-link' : 'a';
  }

  function computeHref(_ref, tag) {
    var disabled = _ref.disabled,
        href = _ref.href,
        to = _ref.to;

    // We've already checked the parent.$router in computeTag,
    // so router-link means live router.
    // When deferring to Vue Router's router-link,
    // don't use the href attr at all.
    // Must return undefined for router-link to populate href.
    if (tag === 'router-link') return void 0;
    // If href explicitly provided
    if (href) return href;
    // Reconstruct href when `to` used, but no router
    if (to) {
      // Fallback to `to` prop (if `to` is a string)
      if (typeof to === 'string') return to;
      // Fallback to `to.path` prop (if `to` is an object)
      if ((typeof to === 'undefined' ? 'undefined' : _typeof(to)) === 'object' && typeof to.path === 'string') return to.path;
    }
    // If nothing is provided use '#'
    return '#';
  }

  function computeRel(_ref2) {
    var target = _ref2.target,
        rel = _ref2.rel;

    if (target === '_blank' && rel === null) {
      return 'noopener';
    }
    return rel || null;
  }

  function clickHandlerFactory(_ref3) {
    var disabled = _ref3.disabled,
        tag = _ref3.tag,
        href = _ref3.href,
        suppliedHandler = _ref3.suppliedHandler,
        parent = _ref3.parent;

    var isRouterLink = tag === 'router-link';

    return function onClick(e) {
      if (disabled && e instanceof Event) {
        // Stop event from bubbling up.
        e.stopPropagation();
        // Kill the event loop attached to this specific EventTarget.
        e.stopImmediatePropagation();
      } else {
        parent.$root.$emit('clicked::link', e);

        if (isRouterLink && e.target.__vue__) {
          e.target.__vue__.$emit('click', e);
        }
        if (typeof suppliedHandler === 'function') {
          suppliedHandler.apply(undefined, arguments);
        }
      }

      if (!isRouterLink && href === '#' || disabled) {
        // Stop scroll-to-top behavior or navigation.
        e.preventDefault();
      }
    };
  }

  var bLink = {
    functional: true,
    props: propsFactory(),
    render: function render(h, _ref4) {
      var props = _ref4.props,
          data = _ref4.data,
          parent = _ref4.parent,
          children = _ref4.children;

      var tag = computeTag(props, parent);
      var rel = computeRel(props);
      var href = computeHref(props, tag);
      var eventType = tag === 'router-link' ? 'nativeOn' : 'on';
      var suppliedHandler = (data[eventType] || {}).click;
      var handlers = { click: clickHandlerFactory({ tag: tag, href: href, disabled: props.disabled, suppliedHandler: suppliedHandler, parent: parent }) };

      var componentData = mergeData(data, {
        class: [props.active ? props.exact ? props.exactActiveClass : props.activeClass : null, { disabled: props.disabled }],
        attrs: {
          rel: rel,
          href: href,
          target: props.target,
          tabindex: props.disabled ? '-1' : data.attrs ? data.attrs.tabindex : null,
          'aria-disabled': tag === 'a' && props.disabled ? 'true' : null
        },
        props: assign(props, { tag: props.routerTag })
      });

      // If href prop exists on router-link (even undefined or null) it fails working on SSR
      if (!componentData.attrs.href) {
        delete componentData.attrs.href;
      }

      // We want to overwrite any click handler since our callback
      // will invoke the supplied handler if !props.disabled
      componentData[eventType] = assign(componentData[eventType] || {}, handlers);

      return h(tag, componentData, children);
    }
  };

  var linkProps = propsFactory();
  delete linkProps.href.default;
  delete linkProps.to.default;

  var props$2 = assign(linkProps, {
    tag: {
      type: String,
      default: 'span'
    },
    variant: {
      type: String,
      default: 'secondary'
    },
    pill: {
      type: Boolean,
      default: false
    }
  });

  var bBadge = {
    functional: true,
    props: props$2,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var tag = !props.href && !props.to ? props.tag : bLink;

      var componentData = {
        staticClass: 'badge',
        class: [!props.variant ? 'badge-secondary' : 'badge-' + props.variant, {
          'badge-pill': Boolean(props.pill),
          active: props.active,
          disabled: props.disabled
        }],
        props: pluckProps(linkProps, props)
      };

      return h(tag, mergeData(data, componentData), children);
    }
  };

  var components$1 = {
    bBadge: bBadge
  };

  var VuePlugin$1 = {
    install: function install(Vue) {
      registerComponents(Vue, components$1);
    }
  };

  vueUse(VuePlugin$1);

  var props$3 = assign(propsFactory(), {
    text: {
      type: String,
      default: null
    },
    active: {
      type: Boolean,
      default: false
    },
    href: {
      type: String,
      default: '#'
    },
    ariaCurrent: {
      type: String,
      default: 'location'
    }
  });

  var BreadcrumbLink = {
    functional: true,
    props: props$3,
    render: function render(h, _ref) {
      var suppliedProps = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var tag = suppliedProps.active ? 'span' : bLink;

      var componentData = { props: pluckProps(props$3, suppliedProps) };
      if (suppliedProps.active) {
        componentData.attrs = { 'aria-current': suppliedProps.ariaCurrent };
      } else {
        componentData.attrs = { href: suppliedProps.href };
      }

      return h(tag, mergeData(data, componentData), children || suppliedProps.text);
    }
  };

  var props$4 = assign({}, props$3, {
    text: {
      type: String,
      default: null
    },
    href: {
      type: String,
      default: null
    }
  });

  var BreadcrumbItem = {
    functional: true,
    props: props$4,
    render: function render(h, _ref) {
      var props$$1 = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h('li', mergeData(data, {
        staticClass: 'breadcrumb-item',
        class: { active: props$$1.active },
        attrs: { role: 'presentation' }
      }), [h(BreadcrumbLink, { props: props$$1 }, children)]);
    }
  };

  var props$5 = {
    items: {
      type: Array,
      default: null
    }
  };

  var bBreadcrumb = {
    functional: true,
    props: props$5,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var childNodes = children;
      // Build child nodes from items if given.
      if (isArray(props.items)) {
        var activeDefined = false;
        childNodes = props.items.map(function (item, idx) {
          if ((typeof item === 'undefined' ? 'undefined' : _typeof(item)) !== 'object') {
            item = { text: item };
          }
          // Copy the value here so we can normalize it.
          var active = item.active;
          if (active) {
            activeDefined = true;
          }
          if (!active && !activeDefined) {
            // Auto-detect active by position in list.
            active = idx + 1 === props.items.length;
          }

          return h(BreadcrumbItem, { props: assign({}, item, { active: active }) });
        });
      }

      return h('ol', mergeData(data, { staticClass: 'breadcrumb' }), childNodes);
    }
  };

  var components$2 = {
    bBreadcrumb: bBreadcrumb,
    bBreadcrumbItem: BreadcrumbItem,
    bBreadcrumbLink: BreadcrumbLink
  };

  var VuePlugin$2 = {
    install: function install(Vue) {
      registerComponents(Vue, components$2);
    }
  };

  vueUse(VuePlugin$2);

  // Determine if an element is an HTML Element
  var isElement = function isElement(el) {
    return el && el.nodeType === Node.ELEMENT_NODE;
  };

  // Determine if an HTML element is visible - Faster than CSS check
  var isVisible = function isVisible(el) {
    return isElement(el) && document.body.contains(el) && el.getBoundingClientRect().height > 0 && el.getBoundingClientRect().width > 0;
  };

  // Determine if an element is disabled
  var isDisabled = function isDisabled(el) {
    return !isElement(el) || el.disabled || el.classList.contains('disabled') || Boolean(el.getAttribute('disabled'));
  };

  // Cause/wait-for an element to reflow it's content (adjusting it's height/width)
  var reflow = function reflow(el) {
    // requsting an elements offsetHight will trigger a reflow of the element content
    return isElement(el) && el.offsetHeight;
  };

  // Select all elements matching selector. Returns [] if none found
  var selectAll = function selectAll(selector, root) {
    if (!isElement(root)) {
      root = document;
    }
    return from(root.querySelectorAll(selector));
  };

  // Select a single element, returns null if not found
  var select = function select(selector, root) {
    if (!isElement(root)) {
      root = document;
    }
    return root.querySelector(selector) || null;
  };

  // Determine if an element matches a selector
  var matches = function matches(el, selector) {
    if (!isElement(el)) {
      return false;
    }

    // https://developer.mozilla.org/en-US/docs/Web/API/Element/matches#Polyfill
    // Prefer native implementations over polyfill function
    var proto = Element.prototype;
    var Matches = proto.matches || proto.matchesSelector || proto.mozMatchesSelector || proto.msMatchesSelector || proto.oMatchesSelector || proto.webkitMatchesSelector ||
    /* istanbul ignore next */
    function (sel) {
      var element = this;
      var m = selectAll(sel, element.document || element.ownerDocument);
      var i = m.length;
      // eslint-disable-next-line no-empty
      while (--i >= 0 && m.item(i) !== element) {}
      return i > -1;
    };

    return Matches.call(el, selector);
  };

  // Finds closest element matching selector. Returns null if not found
  var closest = function closest(selector, root) {
    if (!isElement(root)) {
      return null;
    }

    // https://developer.mozilla.org/en-US/docs/Web/API/Element/closest
    // Since we dont support IE < 10, we can use the "Matches" version of the polyfill for speed
    // Prefer native implementation over polyfill function
    var Closest = Element.prototype.closest ||
    /* istanbul ignore next */
    function (sel) {
      var element = this;
      if (!document.documentElement.contains(element)) {
        return null;
      }
      do {
        // Use our "patched" matches function
        if (matches(element, sel)) {
          return element;
        }
        element = element.parentElement;
      } while (element !== null);
      return null;
    };

    var el = Closest.call(root, selector);
    // Emulate jQuery closest and return null if match is the passed in element (root)
    return el === root ? null : el;
  };

  // Get an element given an ID
  var getById = function getById(id) {
    return document.getElementById(/^#/.test(id) ? id.slice(1) : id) || null;
  };

  // Add a class to an element
  var addClass = function addClass(el, className) {
    if (className && isElement(el)) {
      el.classList.add(className);
    }
  };

  // Remove a class from an element
  var removeClass = function removeClass(el, className) {
    if (className && isElement(el)) {
      el.classList.remove(className);
    }
  };

  // Test if an element has a class
  var hasClass = function hasClass(el, className) {
    if (className && isElement(el)) {
      return el.classList.contains(className);
    }
    return false;
  };

  // Set an attribute on an element
  var setAttr = function setAttr(el, attr, value) {
    if (attr && isElement(el)) {
      el.setAttribute(attr, value);
    }
  };

  // Remove an attribute from an element
  var removeAttr = function removeAttr(el, attr) {
    if (attr && isElement(el)) {
      el.removeAttribute(attr);
    }
  };

  // Get an attribute value from an element (returns null if not found)
  var getAttr = function getAttr(el, attr) {
    if (attr && isElement(el)) {
      return el.getAttribute(attr);
    }
    return null;
  };

  // Determine if an attribute exists on an element (returns true or false, or null if element not found)
  var hasAttr = function hasAttr(el, attr) {
    if (attr && isElement(el)) {
      return el.hasAttribute(attr);
    }
    return null;
  };

  // Return the Bounding Client Rec of an element. Retruns null if not an element
  var getBCR = function getBCR(el) {
    return isElement(el) ? el.getBoundingClientRect() : null;
  };

  // Get computed style object for an element
  var getCS = function getCS(el) {
    return isElement(el) ? window.getComputedStyle(el) : {};
  };

  // Return an element's offset wrt document element
  // https://j11y.io/jquery/#v=git&fn=jQuery.fn.offset
  var offset = function offset(el) {
    if (isElement(el)) {
      if (!el.getClientRects().length) {
        return { top: 0, left: 0 };
      }
      var bcr = getBCR(el);
      var win = el.ownerDocument.defaultView;
      return {
        top: bcr.top + win.pageYOffset,
        left: bcr.left + win.pageXOffset
      };
    }
  };

  // Return an element's offset wrt to it's offsetParent
  // https://j11y.io/jquery/#v=git&fn=jQuery.fn.position
  var position = function position(el) {
    if (!isElement(el)) {
      return;
    }
    var parentOffset = { top: 0, left: 0 };
    var offsetSelf = void 0;
    var offsetParent = void 0;
    if (getCS(el).position === 'fixed') {
      offsetSelf = getBCR(el);
    } else {
      offsetSelf = offset(el);
      var doc = el.ownerDocument;
      offsetParent = el.offsetParent || doc.documentElement;
      while (offsetParent && (offsetParent === doc.body || offsetParent === doc.documentElement) && getCS(offsetParent).position === 'static') {
        offsetParent = offsetParent.parentNode;
      }
      if (offsetParent && offsetParent !== el && offsetParent.nodeType === Node.ELEMENT_NODE) {
        parentOffset = offset(offsetParent);
        parentOffset.top += parseFloat(getCS(offsetParent).borderTopWidth);
        parentOffset.left += parseFloat(getCS(offsetParent).borderLeftWidth);
      }
    }
    return {
      top: offsetSelf.top - parentOffset.top - parseFloat(getCS(el).marginTop),
      left: offsetSelf.left - parentOffset.left - parseFloat(getCS(el).marginLeft)
    };
  };

  // Attach an event listener to an element
  var eventOn = function eventOn(el, evtName, handler) {
    if (el && el.addEventListener) {
      el.addEventListener(evtName, handler);
    }
  };

  // Remove an event listener from an element
  var eventOff = function eventOff(el, evtName, handler) {
    if (el && el.removeEventListener) {
      el.removeEventListener(evtName, handler);
    }
  };

  var btnProps = {
    block: {
      type: Boolean,
      default: false
    },
    disabled: {
      type: Boolean,
      default: false
    },
    size: {
      type: String,
      default: null
    },
    variant: {
      type: String,
      default: null
    },
    type: {
      type: String,
      default: 'button'
    },
    pressed: {
      // tri-state prop: true, false or null
      // => on, off, not a toggle
      type: Boolean,
      default: null
    }
  };

  var linkProps$1 = propsFactory();
  delete linkProps$1.href.default;
  delete linkProps$1.to.default;
  var linkPropKeys = keys(linkProps$1);

  var props$6 = assign(linkProps$1, btnProps);

  function handleFocus(evt) {
    if (evt.type === 'focusin') {
      addClass(evt.target, 'focus');
    } else if (evt.type === 'focusout') {
      removeClass(evt.target, 'focus');
    }
  }

  var bBtn = {
    functional: true,
    props: props$6,
    render: function render(h, _ref) {
      var _ref2;

      var props = _ref.props,
          data = _ref.data,
          listeners = _ref.listeners,
          children = _ref.children;

      var isLink = Boolean(props.href || props.to);
      var isToggle = typeof props.pressed === 'boolean';
      var on = {
        click: function click(e) {
          if (props.disabled && e instanceof Event) {
            e.stopPropagation();
            e.preventDefault();
          } else if (isToggle) {
            // Concat will normalize the value to an array
            // without double wrapping an array value in an array.
            concat(listeners['update:pressed']).forEach(function (fn) {
              if (typeof fn === 'function') {
                fn(!props.pressed);
              }
            });
          }
        }
      };

      if (isToggle) {
        on.focusin = handleFocus;
        on.focusout = handleFocus;
      }

      var componentData = {
        staticClass: 'btn',
        class: [props.variant ? 'btn-' + props.variant : 'btn-secondary', (_ref2 = {}, defineProperty(_ref2, 'btn-' + props.size, Boolean(props.size)), defineProperty(_ref2, 'btn-block', props.block), defineProperty(_ref2, 'disabled', props.disabled), defineProperty(_ref2, 'active', props.pressed), _ref2)],
        props: isLink ? pluckProps(linkPropKeys, props) : null,
        attrs: {
          type: isLink ? null : props.type,
          disabled: isLink ? null : props.disabled,
          // Data attribute not used for js logic,
          // but only for BS4 style selectors.
          'data-toggle': isToggle ? 'button' : null,
          'aria-pressed': isToggle ? String(props.pressed) : null,
          // Tab index is used when the component becomes a link.
          // Links are tabable, but don't allow disabled,
          // so we mimic that functionality by disabling tabbing.
          tabindex: props.disabled && isLink ? '-1' : data.attrs ? data.attrs['tabindex'] : null
        },
        on: on
      };

      return h(isLink ? bLink : 'button', mergeData(data, componentData), children);
    }
  };

  var components$3 = {
    bButton: bBtn,
    bBtn: bBtn,
    bButtonClose: bBtnClose,
    bBtnClose: bBtnClose
  };

  var VuePlugin$3 = {
    install: function install(Vue) {
      registerComponents(Vue, components$3);
    }
  };

  vueUse(VuePlugin$3);

  var props$7 = {
    vertical: {
      type: Boolean,
      default: false
    },
    size: {
      type: String,
      default: null,
      validator: function validator(size) {
        return arrayIncludes(['sm', '', 'lg'], size);
      }
    },
    tag: {
      type: String,
      default: 'div'
    },
    ariaRole: {
      type: String,
      default: 'group'
    }
  };

  var bButtonGroup = {
    functional: true,
    props: props$7,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        class: defineProperty({
          'btn-group': !props.vertical,
          'btn-group-vertical': props.vertical
        }, 'btn-group-' + props.size, Boolean(props.size)),
        attrs: { 'role': props.ariaRole }
      }), children);
    }
  };

  var components$4 = {
    bButtonGroup: bButtonGroup,
    bBtnGroup: bButtonGroup
  };

  var VuePlugin$4 = {
    install: function install(Vue) {
      registerComponents(Vue, components$4);
    }
  };

  vueUse(VuePlugin$4);

  /*
   * Key Codes (events)
   */

  var KeyCodes = {
    SPACE: 32,
    ENTER: 13,
    ESC: 27,
    LEFT: 37,
    UP: 38,
    RIGHT: 39,
    DOWN: 40,
    PAGEUP: 33,
    PAGEDOWN: 34,
    HOME: 36,
    END: 35
  };

  var ITEM_SELECTOR = ['.btn:not(.disabled):not([disabled]):not(.dropdown-item)', '.form-control:not(.disabled):not([disabled])', 'select:not(.disabled):not([disabled])', 'input[type="checkbox"]:not(.disabled)', 'input[type="radio"]:not(.disabled)'].join(',');

  var bButtonToolbar = {
    render: function render(h) {
      return h('div', {
        class: this.classObject,
        attrs: {
          role: 'toolbar',
          tabindex: this.keyNav ? '0' : null
        },
        on: {
          focusin: this.onFocusin,
          keydown: this.onKeydown
        }
      }, [this.$slots.default]);
    },

    computed: {
      classObject: function classObject() {
        return ['btn-toolbar', this.justify && !this.vertical ? 'justify-content-between' : ''];
      }
    },
    props: {
      justify: {
        type: Boolean,
        default: false
      },
      keyNav: {
        type: Boolean,
        default: false
      }
    },
    methods: {
      onFocusin: function onFocusin(evt) {
        if (evt.target === this.$el) {
          evt.preventDefault();
          evt.stopPropagation();
          this.focusFirst(evt);
        }
      },
      onKeydown: function onKeydown(evt) {
        if (!this.keyNav) {
          return;
        }
        var key = evt.keyCode;
        var shift = evt.shiftKey;
        if (key === KeyCodes.UP || key === KeyCodes.LEFT) {
          evt.preventDefault();
          evt.stopPropagation();
          if (shift) {
            this.focusFirst(evt);
          } else {
            this.focusNext(evt, true);
          }
        } else if (key === KeyCodes.DOWN || key === KeyCodes.RIGHT) {
          evt.preventDefault();
          evt.stopPropagation();
          if (shift) {
            this.focusLast(evt);
          } else {
            this.focusNext(evt, false);
          }
        }
      },
      setItemFocus: function setItemFocus(item) {
        this.$nextTick(function () {
          item.focus();
        });
      },
      focusNext: function focusNext(evt, prev) {
        var items = this.getItems();
        if (items.length < 1) {
          return;
        }
        var index = items.indexOf(evt.target);
        if (prev && index > 0) {
          index--;
        } else if (!prev && index < items.length - 1) {
          index++;
        }
        if (index < 0) {
          index = 0;
        }
        this.setItemFocus(items[index]);
      },
      focusFirst: function focusFirst(evt) {
        var items = this.getItems();
        if (items.length > 0) {
          this.setItemFocus(items[0]);
        }
      },
      focusLast: function focusLast(evt) {
        var items = this.getItems();
        if (items.length > 0) {
          this.setItemFocus([items.length - 1]);
        }
      },
      getItems: function getItems() {
        var items = selectAll(ITEM_SELECTOR, this.$el);
        items.forEach(function (item) {
          // Ensure tabfocus is -1 on any new elements
          item.tabIndex = -1;
        });
        return items.filter(function (el) {
          return isVisible(el);
        });
      }
    },
    mounted: function mounted() {
      if (this.keyNav) {
        // Pre-set the tabindexes if the markup does not include tabindex="-1" on the toolbar items
        this.getItems();
      }
    }
  };

  var components$5 = {
    bButtonToolbar: bButtonToolbar,
    bBtnToolbar: bButtonToolbar
  };

  var VuePlugin$5 = {
    install: function install(Vue) {
      registerComponents(Vue, components$5);
    }
  };

  vueUse(VuePlugin$5);

  var props$8 = {
    tag: {
      type: String,
      default: 'div'
    }
  };

  var InputGroupText = {
    props: props$8,
    functional: true,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'input-group-text'
      }), children);
    }
  };

  var propsFactory$1 = function propsFactory(append) {
    return {
      id: {
        type: String,
        default: null
      },
      tag: {
        type: String,
        default: 'div'
      },
      append: {
        type: Boolean,
        default: append
      },
      isText: {
        type: Boolean,
        default: false
      }
    };
  };

  var InputGroupAddon = {
    functional: true,
    props: propsFactory$1(false),
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'input-group-' + (props.append ? 'append' : 'prepend'),
        attrs: {
          id: props.id
        }
      }), props.isText ? [h(InputGroupText, children)] : children);
    }
  };

  var InputGroupPrepend = {
    functional: true,
    props: propsFactory$1(false),
    render: InputGroupAddon.render
  };

  var InputGroupAppend = {
    functional: true,
    props: propsFactory$1(true),
    render: InputGroupAddon.render
  };

  var props$9 = {
    id: {
      type: String,
      default: null
    },
    size: {
      type: String,
      default: null
    },
    prepend: {
      type: String,
      default: null
    },
    append: {
      type: String,
      default: null
    },
    tag: {
      type: String,
      default: 'div'
    }
  };

  var bInputGroup = {
    functional: true,
    props: props$9,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          slots = _ref.slots;

      var $slots = slots();

      var childNodes = [];

      // Prepend prop
      if (props.prepend) {
        childNodes.push(h(InputGroupPrepend, [h(InputGroupText, { domProps: { innerHTML: props.prepend } })]));
      }

      // Prepend slot
      if ($slots.prepend) {
        childNodes.push(h(InputGroupPrepend, $slots.prepend));
      }

      // Default slot
      childNodes.push($slots.default);

      // Append prop
      if (props.append) {
        childNodes.push(h(InputGroupAppend, [h(InputGroupText, { domProps: { innerHTML: props.append } })]));
      }

      // Append slot
      if ($slots.append) {
        childNodes.push(h(InputGroupAppend, $slots.append));
      }

      return h(props.tag, mergeData(data, {
        staticClass: 'input-group',
        class: defineProperty({}, 'input-group-' + props.size, Boolean(props.size)),
        attrs: {
          id: props.id || null,
          role: 'group'
        }
      }), childNodes);
    }
  };

  var components$6 = {
    bInputGroup: bInputGroup,
    bInputGroupAddon: InputGroupAddon,
    bInputGroupPrepend: InputGroupPrepend,
    bInputGroupAppend: InputGroupAppend,
    bInputGroupText: InputGroupText
  };

  var VuePlugin$6 = {
    install: function install(Vue) {
      registerComponents(Vue, components$6);
    }
  };

  vueUse(VuePlugin$6);

  /**
   * @param {string} str
   */
  function upperFirst(str) {
    if (typeof str !== 'string') {
      str = String(str);
    }
    return str.charAt(0).toUpperCase() + str.slice(1);
  }

  /**
   * @param {string} prefix
   * @param {string} value
   */
  function prefixPropName(prefix, value) {
    return prefix + upperFirst(value);
  }

  /**
   * @param {string} str
   */
  function lowerFirst(str) {
    if (typeof str !== 'string') {
      str = String(str);
    }
    return str.charAt(0).toLowerCase() + str.slice(1);
  }

  /**
   * @param {string} prefix
   * @param {string} value
   */
  function unPrefixPropName(prefix, value) {
    return lowerFirst(value.replace(prefix, ''));
  }

  /**
   * @param {[]|{}} props
   * @param {Function} transformFn
   */
  function copyProps(props) {
    var transformFn = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : identity;

    if (isArray(props)) {
      return props.map(transformFn);
    }
    // Props as an object.
    var copied = {};

    for (var prop in props) {
      if (props.hasOwnProperty(prop)) {
        if ((typeof prop === 'undefined' ? 'undefined' : _typeof(prop)) === 'object') {
          copied[transformFn(prop)] = assign({}, props[prop]);
        } else {
          copied[transformFn(prop)] = props[prop];
        }
      }
    }

    return copied;
  }

  var cardMixin = {
    props: {
      tag: {
        type: String,
        default: 'div'
      },
      bgVariant: {
        type: String,
        default: null
      },
      borderVariant: {
        type: String,
        default: null
      },
      textVariant: {
        type: String,
        default: null
      }
    }
  };

  var props$a = assign({}, copyProps(cardMixin.props, prefixPropName.bind(null, 'body')), {
    bodyClass: {
      type: [String, Object, Array],
      default: null
    },
    title: {
      type: String,
      default: null
    },
    titleTag: {
      type: String,
      default: 'h4'
    },
    subTitle: {
      type: String,
      default: null
    },
    subTitleTag: {
      type: String,
      default: 'h6'
    },
    overlay: {
      type: Boolean,
      default: false
    }
  });

  var CardBody = {
    functional: true,
    props: props$a,
    render: function render(h, _ref) {
      var _ref2;

      var props = _ref.props,
          data = _ref.data,
          slots = _ref.slots;

      var cardBodyChildren = [];
      if (props.title) {
        cardBodyChildren.push(h(props.titleTag, {
          staticClass: 'card-title',
          domProps: { innerHTML: props.title }
        }));
      }
      if (props.subTitle) {
        cardBodyChildren.push(h(props.subTitleTag, {
          staticClass: 'card-subtitle mb-2 text-muted',
          domProps: { innerHTML: props.subTitle }
        }));
      }
      cardBodyChildren.push(slots().default);

      return h(props.bodyTag, mergeData(data, {
        staticClass: 'card-body',
        class: [(_ref2 = {
          'card-img-overlay': props.overlay
        }, defineProperty(_ref2, 'bg-' + props.bodyBgVariant, Boolean(props.bodyBgVariant)), defineProperty(_ref2, 'border-' + props.bodyBorderVariant, Boolean(props.bodyBorderVariant)), defineProperty(_ref2, 'text-' + props.bodyTextVariant, Boolean(props.bodyTextVariant)), _ref2), props.bodyClass || {}]
      }), cardBodyChildren);
    }
  };

  var props$b = assign({}, copyProps(cardMixin.props, prefixPropName.bind(null, 'header')), {
    header: {
      type: String,
      default: null
    },
    headerClass: {
      type: [String, Object, Array],
      default: null
    }
  });

  var CardHeader = {
    functional: true,
    props: props$b,
    render: function render(h, _ref) {
      var _ref2;

      var props = _ref.props,
          data = _ref.data,
          slots = _ref.slots,
          children = _ref.children;

      return h(props.headerTag, mergeData(data, {
        staticClass: 'card-header',
        class: [props.headerClass, (_ref2 = {}, defineProperty(_ref2, 'bg-' + props.headerBgVariant, Boolean(props.headerBgVariant)), defineProperty(_ref2, 'border-' + props.headerBorderVariant, Boolean(props.headerBorderVariant)), defineProperty(_ref2, 'text-' + props.headerTextVariant, Boolean(props.headerTextVariant)), _ref2)]
      }), children || [h('div', { domProps: { innerHTML: props.header } })]);
    }
  };

  var props$c = assign({}, copyProps(cardMixin.props, prefixPropName.bind(null, 'footer')), {
    footer: {
      type: String,
      default: null
    },
    footerClass: {
      type: [String, Object, Array],
      default: null
    }
  });

  var CardFooter = {
    functional: true,
    props: props$c,
    render: function render(h, _ref) {
      var _ref2;

      var props = _ref.props,
          data = _ref.data,
          slots = _ref.slots,
          children = _ref.children;

      return h(props.footerTag, mergeData(data, {
        staticClass: 'card-footer',
        class: [props.footerClass, (_ref2 = {}, defineProperty(_ref2, 'bg-' + props.footerBgVariant, Boolean(props.footerBgVariant)), defineProperty(_ref2, 'border-' + props.footerBorderVariant, Boolean(props.footerBorderVariant)), defineProperty(_ref2, 'text-' + props.footerTextVariant, Boolean(props.footerTextVariant)), _ref2)]
      }), children || [h('div', { domProps: { innerHTML: props.footer } })]);
    }
  };

  var props$d = {
    src: {
      type: String,
      default: null,
      required: true
    },
    alt: {
      type: String,
      default: null
    },
    top: {
      type: Boolean,
      default: false
    },
    bottom: {
      type: Boolean,
      default: false
    },
    fluid: {
      type: Boolean,
      default: false
    }
  };

  var CardImg = {
    functional: true,
    props: props$d,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          slots = _ref.slots;

      var staticClass = 'card-img';
      if (props.top) {
        staticClass += '-top';
      } else if (props.bottom) {
        staticClass += '-bottom';
      }

      return h('img', mergeData(data, {
        staticClass: staticClass,
        class: { 'img-fluid': props.fluid },
        attrs: { src: props.src, alt: props.alt }
      }));
    }
  };

  var cardImgProps = copyProps(props$d, prefixPropName.bind(null, 'img'));
  cardImgProps.imgSrc.required = false;

  var props$e = assign({}, props$a, props$b, props$c, cardImgProps, copyProps(cardMixin.props), {
    align: {
      type: String,
      default: null
    },
    noBody: {
      type: Boolean,
      default: false
    }
  });

  var bCard = {
    functional: true,
    props: props$e,
    render: function render(h, _ref) {
      var _class;

      var props$$1 = _ref.props,
          data = _ref.data,
          slots = _ref.slots,
          children = _ref.children;

      // The order of the conditionals matter.
      // We are building the component markup in order.
      var childNodes = [];
      var $slots = slots();
      var img = props$$1.imgSrc ? h(CardImg, {
        props: pluckProps(cardImgProps, props$$1, unPrefixPropName.bind(null, 'img'))
      }) : null;

      if (img) {
        // Above the header placement.
        if (props$$1.imgTop || !props$$1.imgBottom) {
          childNodes.push(img);
        }
      }
      if (props$$1.header || $slots.header) {
        childNodes.push(h(CardHeader, { props: pluckProps(props$b, props$$1) }, $slots.header));
      }
      if (props$$1.noBody) {
        childNodes.push($slots.default);
      } else {
        childNodes.push(h(CardBody, { props: pluckProps(props$a, props$$1) }, $slots.default));
      }
      if (props$$1.footer || $slots.footer) {
        childNodes.push(h(CardFooter, { props: pluckProps(props$c, props$$1) }, $slots.footer));
      }
      if (img && props$$1.imgBottom) {
        // Below the footer placement.
        childNodes.push(img);
      }

      return h(props$$1.tag, mergeData(data, {
        staticClass: 'card',
        class: (_class = {}, defineProperty(_class, 'text-' + props$$1.align, Boolean(props$$1.align)), defineProperty(_class, 'bg-' + props$$1.bgVariant, Boolean(props$$1.bgVariant)), defineProperty(_class, 'border-' + props$$1.borderVariant, Boolean(props$$1.borderVariant)), defineProperty(_class, 'text-' + props$$1.textVariant, Boolean(props$$1.textVariant)), _class)
      }), childNodes);
    }
  };

  var props$f = {
    tag: {
      type: String,
      default: 'div'
    },
    deck: {
      type: Boolean,
      default: false
    },
    columns: {
      type: Boolean,
      default: false
    }
  };

  var bCardGroup = {
    functional: true,
    props: props$f,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var staticClass = 'card-group';
      if (props.columns) {
        staticClass = 'card-columns';
      }
      if (props.deck) {
        staticClass = 'card-deck';
      }

      return h(props.tag, mergeData(data, { staticClass: staticClass }), children);
    }
  };

  var components$7 = {
    bCard: bCard,
    bCardHeader: CardHeader,
    bCardBody: CardBody,
    bCardFooter: CardFooter,
    bCardImg: CardImg,
    bCardGroup: bCardGroup
  };

  var VuePlugin$7 = {
    install: function install(Vue) {
      registerComponents(Vue, components$7);
    }
  };

  vueUse(VuePlugin$7);

  /**
   * Observe a DOM element changes, falls back to eventListener mode
   * @param {Element} el The DOM element to observe
   * @param {Function} callback callback to be called on change
   * @param {object} [opts={childList: true, subtree: true}] observe options
   * @see http://stackoverflow.com/questions/3219758
   */
  function observeDOM(el, callback, opts) {
    var MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;
    var eventListenerSupported = window.addEventListener;

    // Handle case where we might be passed a vue instance
    el = el ? el.$el || el : null;
    /* istanbul ignore next: dificult to test in JSDOM */
    if (!isElement(el)) {
      // We can't observe somthing that isn't an element
      return null;
    }

    var obs = null;

    /* istanbul ignore next: dificult to test in JSDOM */
    if (MutationObserver) {
      // Define a new observer
      obs = new MutationObserver(function (mutations) {
        var changed = false;
        // A Mutation can contain several change records, so we loop through them to see what has changed.
        // We break out of the loop early if any "significant" change has been detected
        for (var i = 0; i < mutations.length && !changed; i++) {
          // The muttion record
          var mutation = mutations[i];
          // Mutation Type
          var type = mutation.type;
          // DOM Node (could be any DOM Node type - HTMLElement, Text, comment, etc)
          var target = mutation.target;
          if (type === 'characterData' && target.nodeType === Node.TEXT_NODE) {
            // We ignore nodes that are not TEXt (i.e. comments, etc) as they don't change layout
            changed = true;
          } else if (type === 'attributes') {
            changed = true;
          } else if (type === 'childList' && (mutation.addedNodes.length > 0 || mutation.removedNodes.length > 0)) {
            // This includes HTMLElement and Text Nodes being added/removed/re-arranged
            changed = true;
          }
        }
        if (changed) {
          // We only call the callback if a change that could affect layout/size truely happened.
          callback();
        }
      });

      // Have the observer observe foo for changes in children, etc
      obs.observe(el, assign({ childList: true, subtree: true }, opts));
    } else if (eventListenerSupported) {
      // Legacy interface. most likely not used in modern browsers
      el.addEventListener('DOMNodeInserted', callback, false);
      el.addEventListener('DOMNodeRemoved', callback, false);
    }

    // We return a reference to the observer so that obs.disconnect() can be called if necessary
    // To reduce overhead when the root element is hiiden
    return obs;
  }

  /*
   * SSR Safe Client Side ID attribute generation
   *
   */

  var idMixin = {
    props: {
      id: {
        type: String,
        default: null
      }
    },
    methods: {
      safeId: function safeId() {
        var suffix = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';

        var id = this.id || this.localId_ || null;
        if (!id) {
          return null;
        }
        suffix = String(suffix).replace(/\s+/g, '_');
        return suffix ? id + '_' + suffix : id;
      }
    },
    computed: {
      localId_: function localId_() {
        if (!this.$isServer && !this.id && typeof this._uid !== 'undefined') {
          return '__BVID__' + this._uid;
        }
      }
    }
  };

  // Slide directional classes
  var DIRECTION = {
    next: {
      dirClass: 'carousel-item-left',
      overlayClass: 'carousel-item-next'
    },
    prev: {
      dirClass: 'carousel-item-right',
      overlayClass: 'carousel-item-prev'
    }

    // Fallback Transition duration (with a little buffer) in ms
  };var TRANS_DURATION = 600 + 50;

  // Transition Event names
  var TransitionEndEvents = {
    WebkitTransition: 'webkitTransitionEnd',
    MozTransition: 'transitionend',
    OTransition: 'otransitionend oTransitionEnd',
    transition: 'transitionend'

    // Return the browser specific transitionEnd event name
  };function getTransisionEndEvent(el) {
    for (var name in TransitionEndEvents) {
      if (el.style[name] !== undefined) {
        return TransitionEndEvents[name];
      }
    }
    // fallback
    return null;
  }

  var bCarousel = {
    mixins: [idMixin],
    render: function render(h) {
      var _this = this;

      // Wrapper for slides
      var inner = h('div', {
        ref: 'inner',
        class: ['carousel-inner'],
        attrs: {
          id: this.safeId('__BV_inner_'),
          role: 'list'
        }
      }, [this.$slots.default]);

      // Prev and Next Controls
      var controls = h(false);
      if (this.controls) {
        controls = [h('a', {
          class: ['carousel-control-prev'],
          attrs: { href: '#', role: 'button', 'aria-controls': this.safeId('__BV_inner_') },
          on: {
            click: function click(evt) {
              evt.preventDefault();
              evt.stopPropagation();
              _this.prev();
            },
            keydown: function keydown(evt) {
              var keyCode = evt.keyCode;
              if (keyCode === KeyCodes.SPACE || keyCode === KeyCodes.ENTER) {
                evt.preventDefault();
                evt.stopPropagation();
                _this.prev();
              }
            }
          }
        }, [h('span', { class: ['carousel-control-prev-icon'], attrs: { 'aria-hidden': 'true' } }), h('span', { class: ['sr-only'] }, [this.labelPrev])]), h('a', {
          class: ['carousel-control-next'],
          attrs: { href: '#', role: 'button', 'aria-controls': this.safeId('__BV_inner_') },
          on: {
            click: function click(evt) {
              evt.preventDefault();
              evt.stopPropagation();
              _this.next();
            },
            keydown: function keydown(evt) {
              var keyCode = evt.keyCode;
              if (keyCode === KeyCodes.SPACE || keyCode === KeyCodes.ENTER) {
                evt.preventDefault();
                evt.stopPropagation();
                _this.next();
              }
            }
          }
        }, [h('span', { class: ['carousel-control-next-icon'], attrs: { 'aria-hidden': 'true' } }), h('span', { class: ['sr-only'] }, [this.labelNext])])];
      }

      // Indicators
      var indicators = h('ol', {
        class: ['carousel-indicators'],
        directives: [{ name: 'show', rawName: 'v-show', value: this.indicators, expression: 'indicators' }],
        attrs: {
          id: this.safeId('__BV_indicators_'),
          'aria-hidden': this.indicators ? 'false' : 'true',
          'aria-label': this.labelIndicators,
          'aria-owns': this.safeId('__BV_inner_')
        }
      }, this.slides.map(function (slide, n) {
        return h('li', {
          key: 'slide_' + n,
          class: { active: n === _this.index },
          attrs: {
            role: 'button',
            id: _this.safeId('__BV_indicator_' + (n + 1) + '_'),
            tabindex: _this.indicators ? '0' : '-1',
            'aria-current': n === _this.index ? 'true' : 'false',
            'aria-label': _this.labelGotoSlide + ' ' + (n + 1),
            'aria-describedby': _this.slides[n].id || null,
            'aria-controls': _this.safeId('__BV_inner_')
          },
          on: {
            click: function click(evt) {
              _this.setSlide(n);
            },
            keydown: function keydown(evt) {
              var keyCode = evt.keyCode;
              if (keyCode === KeyCodes.SPACE || keyCode === KeyCodes.ENTER) {
                evt.preventDefault();
                evt.stopPropagation();
                _this.setSlide(n);
              }
            }
          }
        });
      }));

      // Return the carousel
      return h('div', {
        class: ['carousel', 'slide'],
        style: { background: this.background },
        attrs: {
          role: 'region',
          id: this.safeId(),
          'aria-busy': this.isSliding ? 'true' : 'false'
        },
        on: {
          mouseenter: this.pause,
          mouseleave: this.restart,
          focusin: this.pause,
          focusout: this.restart,
          keydown: function keydown(evt) {
            var keyCode = evt.keyCode;
            if (keyCode === KeyCodes.LEFT || keyCode === KeyCodes.RIGHT) {
              evt.preventDefault();
              evt.stopPropagation();
              _this[keyCode === KeyCodes.LEFT ? 'prev' : 'next']();
            }
          }
        }
      }, [inner, controls, indicators]);
    },
    data: function data() {
      return {
        index: this.value || 0,
        isSliding: false,
        intervalId: null,
        transitionEndEvent: null,
        slides: [],
        direction: null
      };
    },

    props: {
      labelPrev: {
        type: String,
        default: 'Previous Slide'
      },
      labelNext: {
        type: String,
        default: 'Next Slide'
      },
      labelGotoSlide: {
        type: String,
        default: 'Goto Slide'
      },
      labelIndicators: {
        type: String,
        default: 'Select a slide to display'
      },
      interval: {
        type: Number,
        default: 5000
      },
      indicators: {
        type: Boolean,
        default: false
      },
      controls: {
        type: Boolean,
        default: false
      },
      imgWidth: {
        // Sniffed by carousel-slide
        type: [Number, String]
      },
      imgHeight: {
        // Sniffed by carousel-slide
        type: [Number, String]
      },
      background: {
        type: String
      },
      value: {
        type: Number,
        default: 0
      }
    },
    computed: {
      isCycling: function isCycling() {
        return Boolean(this.intervalId);
      }
    },
    methods: {
      // Set slide
      setSlide: function setSlide(slide) {
        var _this2 = this;

        // Don't animate when page is not visible
        if (typeof document !== 'undefined' && document.visibilityState && document.hidden) {
          return;
        }
        var len = this.slides.length;
        // Don't do anything if nothing to slide to
        if (len === 0) {
          return;
        }
        // Don't change slide while transitioning, wait until transition is done
        if (this.isSliding) {
          // Schedule slide after sliding complete
          this.$once('sliding-end', function () {
            return _this2.setSlide(slide);
          });
          return;
        }
        // Make sure we have an integer (you never know!)
        slide = Math.floor(slide);
        // Set new slide index. Wrap around if necessary
        this.index = slide >= len ? 0 : slide >= 0 ? slide : len - 1;
      },

      // Previous slide
      prev: function prev() {
        this.direction = 'prev';
        this.setSlide(this.index - 1);
      },

      // Next slide
      next: function next() {
        this.direction = 'next';
        this.setSlide(this.index + 1);
      },

      // Pause auto rotation
      pause: function pause() {
        if (this.isCycling) {
          clearInterval(this.intervalId);
          this.intervalId = null;
          if (this.slides[this.index]) {
            // Make current slide focusable for screen readers
            this.slides[this.index].tabIndex = 0;
          }
        }
      },

      // Start auto rotate slides
      start: function start() {
        var _this3 = this;

        // Don't start if no interval, or if we are already running
        if (!this.interval || this.isCycling) {
          return;
        }
        this.slides.forEach(function (slide) {
          slide.tabIndex = -1;
        });
        this.intervalId = setInterval(function () {
          _this3.next();
        }, Math.max(1000, this.interval));
      },

      // Re-Start auto rotate slides when focus/hover leaves the carousel
      restart: function restart(evt) {
        if (!this.$el.contains(document.activeElement)) {
          this.start();
        }
      },

      // Update slide list
      updateSlides: function updateSlides() {
        this.pause();
        // Get all slides as DOM elements
        this.slides = selectAll('.carousel-item', this.$refs.inner);
        var numSlides = this.slides.length;
        // Keep slide number in range
        var index = Math.max(0, Math.min(Math.floor(this.index), numSlides - 1));
        this.slides.forEach(function (slide, idx) {
          var n = idx + 1;
          if (idx === index) {
            addClass(slide, 'active');
          } else {
            removeClass(slide, 'active');
          }
          setAttr(slide, 'aria-current', idx === index ? 'true' : 'false');
          setAttr(slide, 'aria-posinset', String(n));
          setAttr(slide, 'aria-setsize', String(numSlides));
          slide.tabIndex = -1;
        });
        // Set slide as active
        this.setSlide(index);
        this.start();
      },
      calcDirection: function calcDirection() {
        var direction = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
        var curIndex = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
        var nextIndex = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;

        if (!direction) {
          return nextIndex > curIndex ? DIRECTION.next : DIRECTION.prev;
        }
        return DIRECTION[direction];
      }
    },
    watch: {
      value: function value(newVal, oldVal) {
        if (newVal !== oldVal) {
          this.setSlide(newVal);
        }
      },
      interval: function interval(newVal, oldVal) {
        if (newVal === oldVal) {
          return;
        }
        if (!newVal) {
          // Pausing slide show
          this.pause();
        } else {
          // Restarting or Changing interval
          this.pause();
          this.start();
        }
      },
      index: function index(val, oldVal) {
        var _this4 = this;

        if (val === oldVal || this.isSliding) {
          return;
        }
        // Determine sliding direction
        var direction = this.calcDirection(this.direction, oldVal, val);
        // Determine current and next slides
        var currentSlide = this.slides[oldVal];
        var nextSlide = this.slides[val];
        // Don't do anything if there aren't any slides to slide to
        if (!currentSlide || !nextSlide) {
          return;
        }
        // Start animating
        this.isSliding = true;
        this.$emit('sliding-start', val);
        // Update v-model
        this.$emit('input', this.index);
        nextSlide.classList.add(direction.overlayClass);
        // Trigger a reflow of next slide
        reflow(nextSlide);
        addClass(currentSlide, direction.dirClass);
        addClass(nextSlide, direction.dirClass);
        // Transition End handler
        var called = false;
        /* istanbul ignore next: dificult to test */
        var onceTransEnd = function onceTransEnd(evt) {
          if (called) {
            return;
          }
          called = true;
          if (_this4.transitionEndEvent) {
            var events = _this4.transitionEndEvent.split(/\s+/);
            events.forEach(function (event) {
              eventOff(currentSlide, event, onceTransEnd);
            });
          }
          _this4._animationTimeout = null;
          removeClass(nextSlide, direction.dirClass);
          removeClass(nextSlide, direction.overlayClass);
          addClass(nextSlide, 'active');
          removeClass(currentSlide, 'active');
          removeClass(currentSlide, direction.dirClass);
          removeClass(currentSlide, direction.overlayClass);
          setAttr(currentSlide, 'aria-current', 'false');
          setAttr(nextSlide, 'aria-current', 'true');
          setAttr(currentSlide, 'aria-hidden', 'true');
          setAttr(nextSlide, 'aria-hidden', 'false');
          currentSlide.tabIndex = -1;
          nextSlide.tabIndex = -1;
          if (!_this4.isCycling) {
            // Focus the next slide for screen readers if not in play mode
            nextSlide.tabIndex = 0;
            _this4.$nextTick(function () {
              nextSlide.focus();
            });
          }
          _this4.isSliding = false;
          _this4.direction = null;
          // Notify ourselves that we're done sliding (slid)
          _this4.$nextTick(function () {
            return _this4.$emit('sliding-end', val);
          });
        };
        // Clear transition classes after transition ends
        if (this.transitionEndEvent) {
          var events = this.transitionEndEvent.split(/\s+/);
          events.forEach(function (event) {
            eventOn(currentSlide, event, onceTransEnd);
          });
        }
        // Fallback to setTimeout
        this._animationTimeout = setTimeout(onceTransEnd, TRANS_DURATION);
      }
    },
    created: function created() {
      // Create private non-reactive props
      this._animationTimeout = null;
    },
    mounted: function mounted() {
      // Cache current browser transitionend event name
      this.transitionEndEvent = getTransisionEndEvent(this.$el) || null;
      // Get all slides
      this.updateSlides();
      // Observe child changes so we can update slide list
      observeDOM(this.$refs.inner, this.updateSlides.bind(this), {
        subtree: false,
        childList: true,
        attributes: true,
        attributeFilter: ['id']
      });
    },

    /* istanbul ignore next: dificult to test */
    beforeDestroy: function beforeDestroy() {
      clearInterval(this.intervalId);
      clearTimeout(this._animationTimeout);
      this.intervalId = null;
      this._animationTimeout = null;
    }
  };

  // Blank image with fill template
  var BLANK_TEMPLATE = '<svg width="%{w}" height="%{h}" ' + 'xmlns="http://www.w3.org/2000/svg" ' + 'viewBox="0 0 %{w} %{h}" preserveAspectRatio="none">' + '<rect width="100%" height="100%" style="fill:%{f};"></rect>' + '</svg>';

  function makeBlankImgSrc(width, height, color) {
    var src = encodeURIComponent(BLANK_TEMPLATE.replace('%{w}', String(width)).replace('%{h}', String(height)).replace('%{f}', color));
    return 'data:image/svg+xml;charset=UTF-8,' + src;
  }

  var props$g = {
    src: {
      type: String,
      default: null
    },
    alt: {
      type: String,
      default: null
    },
    width: {
      type: [Number, String],
      default: null
    },
    height: {
      type: [Number, String],
      default: null
    },
    block: {
      type: Boolean,
      default: false
    },
    fluid: {
      type: Boolean,
      default: false
    },
    fluidGrow: {
      // Gives fluid images class `w-100` to make them grow to fit container
      type: Boolean,
      default: false
    },
    rounded: {
      // rounded can be:
      //   false: no rounding of corners
      //   true: slightly rounded corners
      //   'top': top corners rounded
      //   'right': right corners rounded
      //   'bottom': bottom corners rounded
      //   'left': left corners rounded
      //   'circle': circle/oval
      //   '0': force rounding off
      type: [Boolean, String],
      default: false
    },
    thumbnail: {
      type: Boolean,
      default: false
    },
    left: {
      type: Boolean,
      default: false
    },
    right: {
      type: Boolean,
      default: false
    },
    center: {
      type: Boolean,
      default: false
    },
    blank: {
      type: Boolean,
      default: false
    },
    blankColor: {
      type: String,
      default: 'transparent'
    }
  };

  var bImg = {
    functional: true,
    props: props$g,
    render: function render(h, _ref) {
      var _class;

      var props = _ref.props,
          data = _ref.data;

      var src = props.src;
      var width = parseInt(props.width, 10) ? parseInt(props.width, 10) : null;
      var height = parseInt(props.height, 10) ? parseInt(props.height, 10) : null;
      var align = null;
      var block = props.block;
      if (props.blank) {
        if (!height && Boolean(width)) {
          height = width;
        } else if (!width && Boolean(height)) {
          width = height;
        }
        if (!width && !height) {
          width = 1;
          height = 1;
        }
        // Make a blank SVG image
        src = makeBlankImgSrc(width, height, props.blankColor || 'transparent');
      }
      if (props.left) {
        align = 'float-left';
      } else if (props.right) {
        align = 'float-right';
      } else if (props.center) {
        align = 'mx-auto';
        block = true;
      }
      return h('img', mergeData(data, {
        attrs: {
          'src': src,
          'alt': props.alt,
          'width': width ? String(width) : null,
          'height': height ? String(height) : null
        },
        class: (_class = {
          'img-thumbnail': props.thumbnail,
          'img-fluid': props.fluid || props.fluidGrow,
          'w-100': props.fluidGrow,
          'rounded': props.rounded === '' || props.rounded === true
        }, defineProperty(_class, 'rounded-' + props.rounded, typeof props.rounded === 'string' && props.rounded !== ''), defineProperty(_class, align, Boolean(align)), defineProperty(_class, 'd-block', block), _class)
      }));
    }
  };

  /**
   * Log a warning message to the console with bootstrap-vue formatting sugar.
   * @param {string} message
   */
  /* istanbul ignore next */
  function warn(message) {
    console.warn("[Bootstrap-Vue warn]: " + message);
  }

  var bCarouselSlide = {
    components: { bImg: bImg },
    mixins: [idMixin],
    render: function render(h) {
      var $slots = this.$slots;

      var img = $slots.img;
      if (!img && (this.imgSrc || this.imgBlank)) {
        img = h('b-img', {
          props: {
            fluidGrow: true,
            block: true,
            src: this.imgSrc,
            blank: this.imgBlank,
            blankColor: this.imgBlankColor,
            width: this.computedWidth,
            height: this.computedHeight,
            alt: this.imgAlt
          }
        });
      }

      var content = h(this.contentTag, { class: this.contentClasses }, [this.caption ? h(this.captionTag, { domProps: { innerHTML: this.caption } }) : h(false), this.text ? h(this.textTag, { domProps: { innerHTML: this.text } }) : h(false), $slots.default]);

      return h('div', {
        class: ['carousel-item'],
        style: { background: this.background },
        attrs: { id: this.safeId(), role: 'listitem' }
      }, [img, content]);
    },

    props: {
      imgSrc: {
        type: String,
        default: function _default() {
          if (this && this.src) {
            // Deprecate src
            warn("b-carousel-slide: prop 'src' has been deprecated. Use 'img-src' instead");
            return this.src;
          }
          return null;
        }
      },
      src: {
        // Deprecated: use img-src instead
        type: String
      },
      imgAlt: {
        type: String
      },
      imgWidth: {
        type: [Number, String]
      },
      imgHeight: {
        type: [Number, String]
      },
      imgBlank: {
        type: Boolean,
        default: false
      },
      imgBlankColor: {
        type: String,
        default: 'transparent'
      },
      contentVisibleUp: {
        type: String
      },
      contentTag: {
        type: String,
        default: 'div'
      },
      caption: {
        type: String
      },
      captionTag: {
        type: String,
        default: 'h3'
      },
      text: {
        type: String
      },
      textTag: {
        type: String,
        default: 'p'
      },
      background: {
        type: String
      }
    },
    computed: {
      contentClasses: function contentClasses() {
        return ['carousel-caption', this.contentVisibleUp ? 'd-none' : '', this.contentVisibleUp ? 'd-' + this.contentVisibleUp + '-block' : ''];
      },
      computedWidth: function computedWidth() {
        // Use local width, or try parent width
        return this.imgWidth || this.$parent.imgWidth;
      },
      computedHeight: function computedHeight() {
        // Use local height, or try parent height
        return this.imgHeight || this.$parent.imgHeight;
      }
    }
  };

  var components$8 = {
    bCarousel: bCarousel,
    bCarouselSlide: bCarouselSlide
  };

  var VuePlugin$8 = {
    install: function install(Vue) {
      registerComponents(Vue, components$8);
    }
  };

  vueUse(VuePlugin$8);

  var props$h = {
    tag: {
      type: String,
      default: 'div'
    },
    fluid: {
      type: Boolean,
      default: false
    }
  };

  var Container = {
    functional: true,
    props: props$h,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        class: {
          'container': !props.fluid,
          'container-fluid': props.fluid
        }
      }), children);
    }
  };

  var COMMON_ALIGNMENT = ['start', 'end', 'center'];

  var props$i = {
    tag: {
      type: String,
      default: 'div'
    },
    noGutters: {
      type: Boolean,
      default: false
    },
    alignV: {
      type: String,
      default: null,
      validator: function validator(str) {
        return arrayIncludes(COMMON_ALIGNMENT.concat(['baseline', 'stretch']), str);
      }
    },
    alignH: {
      type: String,
      default: null,
      validator: function validator(str) {
        return arrayIncludes(COMMON_ALIGNMENT.concat(['between', 'around']), str);
      }
    },
    alignContent: {
      type: String,
      default: null,
      validator: function validator(str) {
        return arrayIncludes(COMMON_ALIGNMENT.concat(['between', 'around', 'stretch']), str);
      }
    }
  };

  var bRow = {
    functional: true,
    props: props$i,
    render: function render(h, _ref) {
      var _class;

      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'row',
        class: (_class = {
          'no-gutters': props.noGutters
        }, defineProperty(_class, 'align-items-' + props.alignV, props.alignV), defineProperty(_class, 'justify-content-' + props.alignH, props.alignH), defineProperty(_class, 'align-content-' + props.alignContent, props.alignContent), _class)
      }), children);
    }
  };

  function memoize(fn) {
    var cache = create(null);

    return function memoizedFn() {
      var args = JSON.stringify(arguments);
      return cache[args] = cache[args] || fn.apply(null, arguments);
    };
  }

  /**
   * Suffix can be a falsey value so nothing is appended to string.
   * (helps when looping over props & some shouldn't change)
   * Use data last parameters to allow for currying.
   * @param {string} suffix
   * @param {string} str
   */
  function suffixPropName(suffix, str) {
    return str + (suffix ? upperFirst(suffix) : '');
  }

  /**
   * Generates a prop object with a type of
   * [Boolean, String, Number]
   */
  function boolStrNum() {
    return {
      type: [Boolean, String, Number],
      default: false
    };
  }

  /**
   * Generates a prop object with a type of
   * [String, Number]
   */
  function strNum() {
    return {
      type: [String, Number],
      default: null
    };
  }

  var computeBkPtClass = memoize(function computeBkPt(type, breakpoint, val) {
    var className = type;
    if (val === false || val === null || val === undefined) {
      return undefined;
    }
    if (breakpoint) {
      className += '-' + breakpoint;
    }
    // Handling the boolean style prop when accepting [Boolean, String, Number]
    // means Vue will not convert <b-col sm /> to sm: true for us.
    // Since the default is false, an empty string indicates the prop's presence.
    if (type === 'col' && (val === '' || val === true)) {
      // .col-md
      return className.toLowerCase();
    }
    // .order-md-6
    className += '-' + val;
    return className.toLowerCase();
  });

  var BREAKPOINTS = ['sm', 'md', 'lg', 'xl'];
  // Supports classes like: .col-sm, .col-md-6, .col-lg-auto
  var breakpointCol = BREAKPOINTS.reduce(
  // eslint-disable-next-line no-sequences
  function (propMap, breakpoint) {
    return propMap[breakpoint] = boolStrNum(), propMap;
  }, create(null));
  // Supports classes like: .offset-md-1, .offset-lg-12
  var breakpointOffset = BREAKPOINTS.reduce(
  // eslint-disable-next-line no-sequences
  function (propMap, breakpoint) {
    return propMap[suffixPropName(breakpoint, 'offset')] = strNum(), propMap;
  }, create(null));
  // Supports classes like: .order-md-1, .order-lg-12
  var breakpointOrder = BREAKPOINTS.reduce(
  // eslint-disable-next-line no-sequences
  function (propMap, breakpoint) {
    return propMap[suffixPropName(breakpoint, 'order')] = strNum(), propMap;
  }, create(null));

  // For loop doesn't need to check hasOwnProperty
  // when using an object created from null
  var breakpointPropMap = assign(create(null), {
    col: keys(breakpointCol),
    offset: keys(breakpointOffset),
    order: keys(breakpointOrder)
  });

  var props$j = assign({}, breakpointCol, breakpointOffset, breakpointOrder, {
    tag: {
      type: String,
      default: 'div'
    },
    // Generic flexbox .col
    col: {
      type: Boolean,
      default: false
    },
    // .col-[1-12]|auto
    cols: strNum(),
    // .offset-[1-12]
    offset: strNum(),
    // Flex ordering utility .order-[1-12]
    order: strNum(),
    alignSelf: {
      type: String,
      default: null,
      validator: function validator(str) {
        return arrayIncludes(['auto', 'start', 'end', 'center', 'baseline', 'stretch'], str);
      }
    }
  });

  /**
   * We need ".col" to default in when no other props are passed,
   * but always render when col=true.
   */
  var bCol = {
    functional: true,
    props: props$j,
    render: function render(h, _ref) {
      var _classList$push;

      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var classList = [];
      // Loop through `col`, `offset`, `order` breakpoint props
      for (var type in breakpointPropMap) {
        // Returns colSm, offset, offsetSm, orderMd, etc.
        var _keys = breakpointPropMap[type];
        for (var i = 0; i < _keys.length; i++) {
          // computeBkPt(col, colSm => Sm, value=[String, Number, Boolean])
          var c = computeBkPtClass(type, _keys[i].replace(type, ''), props[_keys[i]]);
          // If a class is returned, push it onto the array.
          if (c) {
            classList.push(c);
          }
        }
      }

      classList.push((_classList$push = {
        // Default to .col if no other classes generated nor `cols` specified.
        col: props.col || classList.length === 0 && !props.cols
      }, defineProperty(_classList$push, 'col-' + props.cols, props.cols), defineProperty(_classList$push, 'offset-' + props.offset, props.offset), defineProperty(_classList$push, 'order-' + props.order, props.order), defineProperty(_classList$push, 'align-self-' + props.alignSelf, props.alignSelf), _classList$push));

      return h(props.tag, mergeData(data, { class: classList }), children);
    }
  };

  var props$k = {
    tag: {
      type: String,
      default: 'div'
    }
  };

  var bFormRow = {
    functional: true,
    props: props$k,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'form-row'
      }), children);
    }
  };

  var components$9 = {
    bContainer: Container,
    bRow: bRow,
    bCol: bCol,
    bFormRow: bFormRow
  };

  var VuePlugin$9 = {
    install: function install(Vue) {
      registerComponents(Vue, components$9);
    }
  };

  vueUse(VuePlugin$9);

  /**
   * Issue #569: collapse::toggle::state triggered too many times
   * @link https://github.com/bootstrap-vue/bootstrap-vue/issues/569
   */

  var BVRL = '__BV_root_listeners__';

  var listenOnRootMixin = {
    methods: {
      /**
           * Safely register event listeners on the root Vue node.
           * While Vue automatically removes listeners for individual components,
           * when a component registers a listener on root and is destroyed,
           * this orphans a callback because the node is gone,
           * but the root does not clear the callback.
           *
           * This adds a non-reactive prop to a vm on the fly
           * in order to avoid object observation and its performance costs
           * to something that needs no reactivity.
           * It should be highly unlikely there are any naming collisions.
           * @param {string} event
           * @param {function} callback
           * @chainable
           */
      listenOnRoot: function listenOnRoot(event, callback) {
        if (!this[BVRL] || !isArray(this[BVRL])) {
          this[BVRL] = [];
        }
        this[BVRL].push({ event: event, callback: callback });
        this.$root.$on(event, callback);
        return this;
      },


      /**
           * Convenience method for calling vm.$emit on vm.$root.
           * @param {string} event
           * @param {*} args
           * @chainable
           */
      emitOnRoot: function emitOnRoot(event) {
        var _$root;

        for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }

        (_$root = this.$root).$emit.apply(_$root, [event].concat(toConsumableArray(args)));
        return this;
      }
    },

    beforeDestroy: function beforeDestroy() {
      if (this[BVRL] && isArray(this[BVRL])) {
        while (this[BVRL].length > 0) {
          // shift to process in order
          var _BVRL$shift = this[BVRL].shift(),
              event = _BVRL$shift.event,
              callback = _BVRL$shift.callback;

          this.$root.$off(event, callback);
        }
      }
    }
  };

  // Events we emit on $root
  var EVENT_STATE = 'bv::collapse::state';
  var EVENT_ACCORDION = 'bv::collapse::accordion';
  // Events we listen to on $root
  var EVENT_TOGGLE = 'bv::toggle::collapse';

  var bCollapse = {
    mixins: [listenOnRootMixin],
    render: function render(h) {
      var content = h(this.tag, {
        class: this.classObject,
        directives: [{ name: 'show', value: this.show }],
        attrs: { id: this.id || null },
        on: { click: this.clickHandler }
      }, [this.$slots.default]);
      return h('transition', {
        props: {
          enterClass: '',
          enterActiveClass: 'collapsing',
          enterToClass: '',
          leaveClass: '',
          leaveActiveClass: 'collapsing',
          leaveToClass: ''
        },
        on: {
          enter: this.onEnter,
          afterEnter: this.onAfterEnter,
          leave: this.onLeave,
          afterLeave: this.onAfterLeave
        }
      }, [content]);
    },
    data: function data() {
      return {
        show: this.visible,
        transitioning: false
      };
    },

    model: {
      prop: 'visible',
      event: 'input'
    },
    props: {
      id: {
        type: String,
        required: true
      },
      isNav: {
        type: Boolean,
        default: false
      },
      accordion: {
        type: String,
        default: null
      },
      visible: {
        type: Boolean,
        default: false
      },
      tag: {
        type: String,
        default: 'div'
      }
    },
    watch: {
      visible: function visible(newVal) {
        if (newVal !== this.show) {
          this.show = newVal;
        }
      },
      show: function show(newVal, oldVal) {
        if (newVal !== oldVal) {
          this.emitState();
        }
      }
    },
    computed: {
      classObject: function classObject() {
        return {
          'navbar-collapse': this.isNav,
          'collapse': !this.transitioning,
          'show': this.show && !this.transitioning
        };
      }
    },
    methods: {
      toggle: function toggle() {
        this.show = !this.show;
      },
      onEnter: function onEnter(el) {
        el.style.height = 0;
        reflow(el);
        el.style.height = el.scrollHeight + 'px';
        this.transitioning = true;
        // This should be moved out so we can add cancellable events
        this.$emit('show');
      },
      onAfterEnter: function onAfterEnter(el) {
        el.style.height = null;
        this.transitioning = false;
        this.$emit('shown');
      },
      onLeave: function onLeave(el) {
        el.style.height = 'auto';
        el.style.display = 'block';
        el.style.height = el.getBoundingClientRect().height + 'px';
        reflow(el);
        this.transitioning = true;
        el.style.height = 0;
        // This should be moved out so we can add cancellable events
        this.$emit('hide');
      },
      onAfterLeave: function onAfterLeave(el) {
        el.style.height = null;
        this.transitioning = false;
        this.$emit('hidden');
      },
      emitState: function emitState() {
        this.$emit('input', this.show);
        // Let v-b-toggle know the state of this collapse
        this.$root.$emit(EVENT_STATE, this.id, this.show);
        if (this.accordion && this.show) {
          // Tell the other collapses in this accordion to close
          this.$root.$emit(EVENT_ACCORDION, this.id, this.accordion);
        }
      },
      clickHandler: function clickHandler(evt) {
        // If we are in a nav/navbar, close the collapse when non-disabled link clicked
        var el = evt.target;
        if (!this.isNav || !el || getComputedStyle(this.$el).display !== 'block') {
          return;
        }
        if (hasClass(el, 'nav-link') || hasClass(el, 'dropdown-item')) {
          this.show = false;
        }
      },
      handleToggleEvt: function handleToggleEvt(target) {
        if (target !== this.id) {
          return;
        }
        this.toggle();
      },
      handleAccordionEvt: function handleAccordionEvt(openedId, accordion) {
        if (!this.accordion || accordion !== this.accordion) {
          return;
        }
        if (openedId === this.id) {
          // Open this collapse if not shown
          if (!this.show) {
            this.toggle();
          }
        } else {
          // Close this collapse if shown
          if (this.show) {
            this.toggle();
          }
        }
      },
      handleResize: function handleResize() {
        // Handler for orientation/resize to set collapsed state in nav/navbar
        this.show = getComputedStyle(this.$el).display === 'block';
      }
    },
    created: function created() {
      // Listen for toggle events to open/close us
      this.listenOnRoot(EVENT_TOGGLE, this.handleToggleEvt);
      // Listen to otehr collapses for accordion events
      this.listenOnRoot(EVENT_ACCORDION, this.handleAccordionEvt);
    },
    mounted: function mounted() {
      if (this.isNav && typeof document !== 'undefined') {
        // Set up handlers
        window.addEventListener('resize', this.handleResize, false);
        window.addEventListener('orientationchange', this.handleResize, false);
        this.handleResize();
      }
      this.emitState();
    },
    beforeDestroy: function beforeDestroy() {
      if (this.isNav && typeof document !== 'undefined') {
        window.removeEventListener('resize', this.handleResize, false);
        window.removeEventListener('orientationchange', this.handleResize, false);
      }
    }
  };

  var allListenTypes = { hover: true, click: true, focus: true };

  var BVBoundListeners = '__BV_boundEventListeners__';

  var bindTargets = function bindTargets(vnode, binding, listenTypes, fn) {
    var targets = keys(binding.modifiers || {}).filter(function (t) {
      return !allListenTypes[t];
    });

    if (binding.value) {
      targets.push(binding.value);
    }

    var listener = function listener() {
      fn({ targets: targets, vnode: vnode });
    };

    keys(allListenTypes).forEach(function (type) {
      if (listenTypes[type] || binding.modifiers[type]) {
        vnode.elm.addEventListener(type, listener);
        var boundListeners = vnode.elm[BVBoundListeners] || {};
        boundListeners[type] = boundListeners[type] || [];
        boundListeners[type].push(listener);
        vnode.elm[BVBoundListeners] = boundListeners;
      }
    });

    // Return the list of targets
    return targets;
  };

  var unbindTargets = function unbindTargets(vnode, binding, listenTypes) {
    keys(allListenTypes).forEach(function (type) {
      if (listenTypes[type] || binding.modifiers[type]) {
        var boundListeners = vnode.elm[BVBoundListeners] && vnode.elm[BVBoundListeners][type];
        if (boundListeners) {
          boundListeners.forEach(function (listener) {
            return vnode.elm.removeEventListener(type, listener);
          });
          delete vnode.elm[BVBoundListeners][type];
        }
      }
    });
  };

  // Are we client side?
  var inBrowser = typeof window !== 'undefined';

  // target listen types
  var listenTypes = { click: true

    // Property key for handler storage
  };var BVT = '__BV_toggle__';

  // Emitted Control Event for collapse (emitted to collapse)
  var EVENT_TOGGLE$1 = 'bv::toggle::collapse';

  // Listen to Event for toggle state update (Emited by collapse)
  var EVENT_STATE$1 = 'bv::collapse::state';

  var bToggle = {
    bind: function bind(el, binding, vnode) {
      var targets = bindTargets(vnode, binding, listenTypes, function (_ref) {
        var targets = _ref.targets,
            vnode = _ref.vnode;

        targets.forEach(function (target) {
          vnode.context.$root.$emit(EVENT_TOGGLE$1, target);
        });
      });

      if (inBrowser && vnode.context && targets.length > 0) {
        // Add aria attributes to element
        setAttr(el, 'aria-controls', targets.join(' '));
        setAttr(el, 'aria-expanded', 'false');
        if (el.tagName !== 'BUTTON') {
          // If element is not a button, we add `role="button"` for accessibility
          setAttr(el, 'role', 'button');
        }

        // Toggle state hadnler, stored on element
        el[BVT] = function toggleDirectiveHandler(id, state) {
          if (targets.indexOf(id) !== -1) {
            // Set aria-expanded state
            setAttr(el, 'aria-expanded', state ? 'true' : 'false');
            // Set/Clear 'collapsed' class state
            if (state) {
              removeClass(el, 'collapsed');
            } else {
              addClass(el, 'collapsed');
            }
          }
        };

        // Listen for toggle state changes
        vnode.context.$root.$on(EVENT_STATE$1, el[BVT]);
      }
    },
    unbind: function unbind(el, binding, vnode) {
      if (el[BVT]) {
        // Remove our $root listener
        vnode.context.$root.$off(EVENT_STATE$1, el[BVT]);
        el[BVT] = null;
      }
    }
  };

  var directives = {
    bToggle: bToggle
  };

  var VuePlugin$a = {
    install: function install(Vue) {
      registerDirectives(Vue, directives);
    }
  };

  vueUse(VuePlugin$a);

  var components$a = {
    bCollapse: bCollapse
  };

  var VuePlugin$b = {
    install: function install(Vue) {
      registerComponents(Vue, components$a);
      Vue.use(VuePlugin$a);
    }
  };

  vueUse(VuePlugin$b);

  /**!
   * @fileOverview Kickass library to create and place poppers near their reference elements.
   * @version 1.14.3
   * @license
   * Copyright (c) 2016 Federico Zivolo and contributors
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';

  var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
  var timeoutDuration = 0;
  for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
    if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
      timeoutDuration = 1;
      break;
    }
  }

  function microtaskDebounce(fn) {
    var called = false;
    return function () {
      if (called) {
        return;
      }
      called = true;
      window.Promise.resolve().then(function () {
        called = false;
        fn();
      });
    };
  }

  function taskDebounce(fn) {
    var scheduled = false;
    return function () {
      if (!scheduled) {
        scheduled = true;
        setTimeout(function () {
          scheduled = false;
          fn();
        }, timeoutDuration);
      }
    };
  }

  var supportsMicroTasks = isBrowser && window.Promise;

  /**
  * Create a debounced version of a method, that's asynchronously deferred
  * but called in the minimum time possible.
  *
  * @method
  * @memberof Popper.Utils
  * @argument {Function} fn
  * @returns {Function}
  */
  var debounce = supportsMicroTasks ? microtaskDebounce : taskDebounce;

  /**
   * Check if the given variable is a function
   * @method
   * @memberof Popper.Utils
   * @argument {Any} functionToCheck - variable to check
   * @returns {Boolean} answer to: is a function?
   */
  function isFunction(functionToCheck) {
    var getType = {};
    return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
  }

  /**
   * Get CSS computed property of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Eement} element
   * @argument {String} property
   */
  function getStyleComputedProperty(element, property) {
    if (element.nodeType !== 1) {
      return [];
    }
    // NOTE: 1 DOM access here
    var css = getComputedStyle(element, null);
    return property ? css[property] : css;
  }

  /**
   * Returns the parentNode or the host of the element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} parent
   */
  function getParentNode(element) {
    if (element.nodeName === 'HTML') {
      return element;
    }
    return element.parentNode || element.host;
  }

  /**
   * Returns the scrolling parent of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} scroll parent
   */
  function getScrollParent(element) {
    // Return body, `getScroll` will take care to get the correct `scrollTop` from it
    if (!element) {
      return document.body;
    }

    switch (element.nodeName) {
      case 'HTML':
      case 'BODY':
        return element.ownerDocument.body;
      case '#document':
        return element.body;
    }

    // Firefox want us to check `-x` and `-y` variations as well

    var _getStyleComputedProp = getStyleComputedProperty(element),
        overflow = _getStyleComputedProp.overflow,
        overflowX = _getStyleComputedProp.overflowX,
        overflowY = _getStyleComputedProp.overflowY;

    if (/(auto|scroll|overlay)/.test(overflow + overflowY + overflowX)) {
      return element;
    }

    return getScrollParent(getParentNode(element));
  }

  var isIE11 = isBrowser && !!(window.MSInputMethodContext && document.documentMode);
  var isIE10 = isBrowser && /MSIE 10/.test(navigator.userAgent);

  /**
   * Determines if the browser is Internet Explorer
   * @method
   * @memberof Popper.Utils
   * @param {Number} version to check
   * @returns {Boolean} isIE
   */
  function isIE(version) {
    if (version === 11) {
      return isIE11;
    }
    if (version === 10) {
      return isIE10;
    }
    return isIE11 || isIE10;
  }

  /**
   * Returns the offset parent of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} offset parent
   */
  function getOffsetParent(element) {
    if (!element) {
      return document.documentElement;
    }

    var noOffsetParent = isIE(10) ? document.body : null;

    // NOTE: 1 DOM access here
    var offsetParent = element.offsetParent;
    // Skip hidden elements which don't have an offsetParent
    while (offsetParent === noOffsetParent && element.nextElementSibling) {
      offsetParent = (element = element.nextElementSibling).offsetParent;
    }

    var nodeName = offsetParent && offsetParent.nodeName;

    if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
      return element ? element.ownerDocument.documentElement : document.documentElement;
    }

    // .offsetParent will return the closest TD or TABLE in case
    // no offsetParent is present, I hate this job...
    if (['TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') {
      return getOffsetParent(offsetParent);
    }

    return offsetParent;
  }

  function isOffsetContainer(element) {
    var nodeName = element.nodeName;

    if (nodeName === 'BODY') {
      return false;
    }
    return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
  }

  /**
   * Finds the root node (document, shadowDOM root) of the given element
   * @method
   * @memberof Popper.Utils
   * @argument {Element} node
   * @returns {Element} root node
   */
  function getRoot(node) {
    if (node.parentNode !== null) {
      return getRoot(node.parentNode);
    }

    return node;
  }

  /**
   * Finds the offset parent common to the two provided nodes
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element1
   * @argument {Element} element2
   * @returns {Element} common offset parent
   */
  function findCommonOffsetParent(element1, element2) {
    // This check is needed to avoid errors in case one of the elements isn't defined for any reason
    if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
      return document.documentElement;
    }

    // Here we make sure to give as "start" the element that comes first in the DOM
    var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
    var start = order ? element1 : element2;
    var end = order ? element2 : element1;

    // Get common ancestor container
    var range = document.createRange();
    range.setStart(start, 0);
    range.setEnd(end, 0);
    var commonAncestorContainer = range.commonAncestorContainer;

    // Both nodes are inside #document

    if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
      if (isOffsetContainer(commonAncestorContainer)) {
        return commonAncestorContainer;
      }

      return getOffsetParent(commonAncestorContainer);
    }

    // one of the nodes is inside shadowDOM, find which one
    var element1root = getRoot(element1);
    if (element1root.host) {
      return findCommonOffsetParent(element1root.host, element2);
    } else {
      return findCommonOffsetParent(element1, getRoot(element2).host);
    }
  }

  /**
   * Gets the scroll value of the given element in the given side (top and left)
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @argument {String} side `top` or `left`
   * @returns {number} amount of scrolled pixels
   */
  function getScroll(element) {
    var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';

    var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
    var nodeName = element.nodeName;

    if (nodeName === 'BODY' || nodeName === 'HTML') {
      var html = element.ownerDocument.documentElement;
      var scrollingElement = element.ownerDocument.scrollingElement || html;
      return scrollingElement[upperSide];
    }

    return element[upperSide];
  }

  /*
   * Sum or subtract the element scroll values (left and top) from a given rect object
   * @method
   * @memberof Popper.Utils
   * @param {Object} rect - Rect object you want to change
   * @param {HTMLElement} element - The element from the function reads the scroll values
   * @param {Boolean} subtract - set to true if you want to subtract the scroll values
   * @return {Object} rect - The modifier rect object
   */
  function includeScroll(rect, element) {
    var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

    var scrollTop = getScroll(element, 'top');
    var scrollLeft = getScroll(element, 'left');
    var modifier = subtract ? -1 : 1;
    rect.top += scrollTop * modifier;
    rect.bottom += scrollTop * modifier;
    rect.left += scrollLeft * modifier;
    rect.right += scrollLeft * modifier;
    return rect;
  }

  /*
   * Helper to detect borders of a given element
   * @method
   * @memberof Popper.Utils
   * @param {CSSStyleDeclaration} styles
   * Result of `getStyleComputedProperty` on the given element
   * @param {String} axis - `x` or `y`
   * @return {number} borders - The borders size of the given axis
   */

  function getBordersSize(styles, axis) {
    var sideA = axis === 'x' ? 'Left' : 'Top';
    var sideB = sideA === 'Left' ? 'Right' : 'Bottom';

    return parseFloat(styles['border' + sideA + 'Width'], 10) + parseFloat(styles['border' + sideB + 'Width'], 10);
  }

  function getSize(axis, body, html, computedStyle) {
    return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE(10) ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
  }

  function getWindowSizes() {
    var body = document.body;
    var html = document.documentElement;
    var computedStyle = isIE(10) && getComputedStyle(html);

    return {
      height: getSize('Height', body, html, computedStyle),
      width: getSize('Width', body, html, computedStyle)
    };
  }

  var classCallCheck$1 = function classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  };

  var createClass$1 = 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;
    };
  }();

  var defineProperty$2 = 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;
  };

  var _extends$1 = 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;
  };

  /**
   * Given element offsets, generate an output similar to getBoundingClientRect
   * @method
   * @memberof Popper.Utils
   * @argument {Object} offsets
   * @returns {Object} ClientRect like output
   */
  function getClientRect(offsets) {
    return _extends$1({}, offsets, {
      right: offsets.left + offsets.width,
      bottom: offsets.top + offsets.height
    });
  }

  /**
   * Get bounding client rect of given element
   * @method
   * @memberof Popper.Utils
   * @param {HTMLElement} element
   * @return {Object} client rect
   */
  function getBoundingClientRect(element) {
    var rect = {};

    // IE10 10 FIX: Please, don't ask, the element isn't
    // considered in DOM in some circumstances...
    // This isn't reproducible in IE10 compatibility mode of IE11
    try {
      if (isIE(10)) {
        rect = element.getBoundingClientRect();
        var scrollTop = getScroll(element, 'top');
        var scrollLeft = getScroll(element, 'left');
        rect.top += scrollTop;
        rect.left += scrollLeft;
        rect.bottom += scrollTop;
        rect.right += scrollLeft;
      } else {
        rect = element.getBoundingClientRect();
      }
    } catch (e) {}

    var result = {
      left: rect.left,
      top: rect.top,
      width: rect.right - rect.left,
      height: rect.bottom - rect.top
    };

    // subtract scrollbar size from sizes
    var sizes = element.nodeName === 'HTML' ? getWindowSizes() : {};
    var width = sizes.width || element.clientWidth || result.right - result.left;
    var height = sizes.height || element.clientHeight || result.bottom - result.top;

    var horizScrollbar = element.offsetWidth - width;
    var vertScrollbar = element.offsetHeight - height;

    // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
    // we make this check conditional for performance reasons
    if (horizScrollbar || vertScrollbar) {
      var styles = getStyleComputedProperty(element);
      horizScrollbar -= getBordersSize(styles, 'x');
      vertScrollbar -= getBordersSize(styles, 'y');

      result.width -= horizScrollbar;
      result.height -= vertScrollbar;
    }

    return getClientRect(result);
  }

  function getOffsetRectRelativeToArbitraryNode(children, parent) {
    var fixedPosition = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

    var isIE10 = isIE(10);
    var isHTML = parent.nodeName === 'HTML';
    var childrenRect = getBoundingClientRect(children);
    var parentRect = getBoundingClientRect(parent);
    var scrollParent = getScrollParent(children);

    var styles = getStyleComputedProperty(parent);
    var borderTopWidth = parseFloat(styles.borderTopWidth, 10);
    var borderLeftWidth = parseFloat(styles.borderLeftWidth, 10);

    // In cases where the parent is fixed, we must ignore negative scroll in offset calc
    if (fixedPosition && parent.nodeName === 'HTML') {
      parentRect.top = Math.max(parentRect.top, 0);
      parentRect.left = Math.max(parentRect.left, 0);
    }
    var offsets = getClientRect({
      top: childrenRect.top - parentRect.top - borderTopWidth,
      left: childrenRect.left - parentRect.left - borderLeftWidth,
      width: childrenRect.width,
      height: childrenRect.height
    });
    offsets.marginTop = 0;
    offsets.marginLeft = 0;

    // Subtract margins of documentElement in case it's being used as parent
    // we do this only on HTML because it's the only element that behaves
    // differently when margins are applied to it. The margins are included in
    // the box of the documentElement, in the other cases not.
    if (!isIE10 && isHTML) {
      var marginTop = parseFloat(styles.marginTop, 10);
      var marginLeft = parseFloat(styles.marginLeft, 10);

      offsets.top -= borderTopWidth - marginTop;
      offsets.bottom -= borderTopWidth - marginTop;
      offsets.left -= borderLeftWidth - marginLeft;
      offsets.right -= borderLeftWidth - marginLeft;

      // Attach marginTop and marginLeft because in some circumstances we may need them
      offsets.marginTop = marginTop;
      offsets.marginLeft = marginLeft;
    }

    if (isIE10 && !fixedPosition ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
      offsets = includeScroll(offsets, parent);
    }

    return offsets;
  }

  function getViewportOffsetRectRelativeToArtbitraryNode(element) {
    var excludeScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

    var html = element.ownerDocument.documentElement;
    var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
    var width = Math.max(html.clientWidth, window.innerWidth || 0);
    var height = Math.max(html.clientHeight, window.innerHeight || 0);

    var scrollTop = !excludeScroll ? getScroll(html) : 0;
    var scrollLeft = !excludeScroll ? getScroll(html, 'left') : 0;

    var offset = {
      top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
      left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
      width: width,
      height: height
    };

    return getClientRect(offset);
  }

  /**
   * Check if the given element is fixed or is inside a fixed parent
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @argument {Element} customContainer
   * @returns {Boolean} answer to "isFixed?"
   */
  function isFixed(element) {
    var nodeName = element.nodeName;
    if (nodeName === 'BODY' || nodeName === 'HTML') {
      return false;
    }
    if (getStyleComputedProperty(element, 'position') === 'fixed') {
      return true;
    }
    return isFixed(getParentNode(element));
  }

  /**
   * Finds the first parent of an element that has a transformed property defined
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Element} first transformed parent or documentElement
   */

  function getFixedPositionOffsetParent(element) {
    // This check is needed to avoid errors in case one of the elements isn't defined for any reason
    if (!element || !element.parentElement || isIE()) {
      return document.documentElement;
    }
    var el = element.parentElement;
    while (el && getStyleComputedProperty(el, 'transform') === 'none') {
      el = el.parentElement;
    }
    return el || document.documentElement;
  }

  /**
   * Computed the boundaries limits and return them
   * @method
   * @memberof Popper.Utils
   * @param {HTMLElement} popper
   * @param {HTMLElement} reference
   * @param {number} padding
   * @param {HTMLElement} boundariesElement - Element used to define the boundaries
   * @param {Boolean} fixedPosition - Is in fixed position mode
   * @returns {Object} Coordinates of the boundaries
   */
  function getBoundaries(popper, reference, padding, boundariesElement) {
    var fixedPosition = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;

    // NOTE: 1 DOM access here

    var boundaries = { top: 0, left: 0 };
    var offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, reference);

    // Handle viewport case
    if (boundariesElement === 'viewport') {
      boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
    } else {
      // Handle other cases based on DOM element used as boundaries
      var boundariesNode = void 0;
      if (boundariesElement === 'scrollParent') {
        boundariesNode = getScrollParent(getParentNode(reference));
        if (boundariesNode.nodeName === 'BODY') {
          boundariesNode = popper.ownerDocument.documentElement;
        }
      } else if (boundariesElement === 'window') {
        boundariesNode = popper.ownerDocument.documentElement;
      } else {
        boundariesNode = boundariesElement;
      }

      var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent, fixedPosition);

      // In case of HTML, we need a different computation
      if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
        var _getWindowSizes = getWindowSizes(),
            height = _getWindowSizes.height,
            width = _getWindowSizes.width;

        boundaries.top += offsets.top - offsets.marginTop;
        boundaries.bottom = height + offsets.top;
        boundaries.left += offsets.left - offsets.marginLeft;
        boundaries.right = width + offsets.left;
      } else {
        // for all the other DOM elements, this one is good
        boundaries = offsets;
      }
    }

    // Add paddings
    boundaries.left += padding;
    boundaries.top += padding;
    boundaries.right -= padding;
    boundaries.bottom -= padding;

    return boundaries;
  }

  function getArea(_ref) {
    var width = _ref.width,
        height = _ref.height;

    return width * height;
  }

  /**
   * Utility used to transform the `auto` placement to the placement with more
   * available space.
   * @method
   * @memberof Popper.Utils
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
    var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;

    if (placement.indexOf('auto') === -1) {
      return placement;
    }

    var boundaries = getBoundaries(popper, reference, padding, boundariesElement);

    var rects = {
      top: {
        width: boundaries.width,
        height: refRect.top - boundaries.top
      },
      right: {
        width: boundaries.right - refRect.right,
        height: boundaries.height
      },
      bottom: {
        width: boundaries.width,
        height: boundaries.bottom - refRect.bottom
      },
      left: {
        width: refRect.left - boundaries.left,
        height: boundaries.height
      }
    };

    var sortedAreas = Object.keys(rects).map(function (key) {
      return _extends$1({
        key: key
      }, rects[key], {
        area: getArea(rects[key])
      });
    }).sort(function (a, b) {
      return b.area - a.area;
    });

    var filteredAreas = sortedAreas.filter(function (_ref2) {
      var width = _ref2.width,
          height = _ref2.height;
      return width >= popper.clientWidth && height >= popper.clientHeight;
    });

    var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;

    var variation = placement.split('-')[1];

    return computedPlacement + (variation ? '-' + variation : '');
  }

  /**
   * Get offsets to the reference element
   * @method
   * @memberof Popper.Utils
   * @param {Object} state
   * @param {Element} popper - the popper element
   * @param {Element} reference - the reference element (the popper will be relative to this)
   * @param {Element} fixedPosition - is in fixed position mode
   * @returns {Object} An object containing the offsets which will be applied to the popper
   */
  function getReferenceOffsets(state, popper, reference) {
    var fixedPosition = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;

    var commonOffsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, reference);
    return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition);
  }

  /**
   * Get the outer sizes of the given element (offset size + margins)
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element
   * @returns {Object} object containing width and height properties
   */
  function getOuterSizes(element) {
    var styles = getComputedStyle(element);
    var x = parseFloat(styles.marginTop) + parseFloat(styles.marginBottom);
    var y = parseFloat(styles.marginLeft) + parseFloat(styles.marginRight);
    var result = {
      width: element.offsetWidth + y,
      height: element.offsetHeight + x
    };
    return result;
  }

  /**
   * Get the opposite placement of the given one
   * @method
   * @memberof Popper.Utils
   * @argument {String} placement
   * @returns {String} flipped placement
   */
  function getOppositePlacement(placement) {
    var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
    return placement.replace(/left|right|bottom|top/g, function (matched) {
      return hash[matched];
    });
  }

  /**
   * Get offsets to the popper
   * @method
   * @memberof Popper.Utils
   * @param {Object} position - CSS position the Popper will get applied
   * @param {HTMLElement} popper - the popper element
   * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
   * @param {String} placement - one of the valid placement options
   * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
   */
  function getPopperOffsets(popper, referenceOffsets, placement) {
    placement = placement.split('-')[0];

    // Get popper node sizes
    var popperRect = getOuterSizes(popper);

    // Add position, width and height to our offsets object
    var popperOffsets = {
      width: popperRect.width,
      height: popperRect.height
    };

    // depending by the popper placement we have to compute its offsets slightly differently
    var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
    var mainSide = isHoriz ? 'top' : 'left';
    var secondarySide = isHoriz ? 'left' : 'top';
    var measurement = isHoriz ? 'height' : 'width';
    var secondaryMeasurement = !isHoriz ? 'height' : 'width';

    popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
    if (placement === secondarySide) {
      popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
    } else {
      popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
    }

    return popperOffsets;
  }

  /**
   * Mimics the `find` method of Array
   * @method
   * @memberof Popper.Utils
   * @argument {Array} arr
   * @argument prop
   * @argument value
   * @returns index or -1
   */
  function find(arr, check) {
    // use native find if supported
    if (Array.prototype.find) {
      return arr.find(check);
    }

    // use `filter` to obtain the same behavior of `find`
    return arr.filter(check)[0];
  }

  /**
   * Return the index of the matching object
   * @method
   * @memberof Popper.Utils
   * @argument {Array} arr
   * @argument prop
   * @argument value
   * @returns index or -1
   */
  function findIndex(arr, prop, value) {
    // use native findIndex if supported
    if (Array.prototype.findIndex) {
      return arr.findIndex(function (cur) {
        return cur[prop] === value;
      });
    }

    // use `find` + `indexOf` if `findIndex` isn't supported
    var match = find(arr, function (obj) {
      return obj[prop] === value;
    });
    return arr.indexOf(match);
  }

  /**
   * Loop trough the list of modifiers and run them in order,
   * each of them will then edit the data object.
   * @method
   * @memberof Popper.Utils
   * @param {dataObject} data
   * @param {Array} modifiers
   * @param {String} ends - Optional modifier name used as stopper
   * @returns {dataObject}
   */
  function runModifiers(modifiers, data, ends) {
    var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));

    modifiersToRun.forEach(function (modifier) {
      if (modifier['function']) {
        // eslint-disable-line dot-notation
        console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
      }
      var fn = modifier['function'] || modifier.fn; // eslint-disable-line dot-notation
      if (modifier.enabled && isFunction(fn)) {
        // Add properties to offsets to make them a complete clientRect object
        // we do this before each modifier to make sure the previous one doesn't
        // mess with these values
        data.offsets.popper = getClientRect(data.offsets.popper);
        data.offsets.reference = getClientRect(data.offsets.reference);

        data = fn(data, modifier);
      }
    });

    return data;
  }

  /**
   * Updates the position of the popper, computing the new offsets and applying
   * the new style.<br />
   * Prefer `scheduleUpdate` over `update` because of performance reasons.
   * @method
   * @memberof Popper
   */
  function update() {
    // if popper is destroyed, don't perform any further update
    if (this.state.isDestroyed) {
      return;
    }

    var data = {
      instance: this,
      styles: {},
      arrowStyles: {},
      attributes: {},
      flipped: false,
      offsets: {}
    };

    // compute reference element offsets
    data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference, this.options.positionFixed);

    // compute auto placement, store placement inside the data object,
    // modifiers will be able to edit `placement` if needed
    // and refer to originalPlacement to know the original value
    data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);

    // store the computed placement inside `originalPlacement`
    data.originalPlacement = data.placement;

    data.positionFixed = this.options.positionFixed;

    // compute the popper offsets
    data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);

    data.offsets.popper.position = this.options.positionFixed ? 'fixed' : 'absolute';

    // run the modifiers
    data = runModifiers(this.modifiers, data);

    // the first `update` will call `onCreate` callback
    // the other ones will call `onUpdate` callback
    if (!this.state.isCreated) {
      this.state.isCreated = true;
      this.options.onCreate(data);
    } else {
      this.options.onUpdate(data);
    }
  }

  /**
   * Helper used to know if the given modifier is enabled.
   * @method
   * @memberof Popper.Utils
   * @returns {Boolean}
   */
  function isModifierEnabled(modifiers, modifierName) {
    return modifiers.some(function (_ref) {
      var name = _ref.name,
          enabled = _ref.enabled;
      return enabled && name === modifierName;
    });
  }

  /**
   * Get the prefixed supported property name
   * @method
   * @memberof Popper.Utils
   * @argument {String} property (camelCase)
   * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
   */
  function getSupportedPropertyName(property) {
    var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
    var upperProp = property.charAt(0).toUpperCase() + property.slice(1);

    for (var i = 0; i < prefixes.length; i++) {
      var prefix = prefixes[i];
      var toCheck = prefix ? '' + prefix + upperProp : property;
      if (typeof document.body.style[toCheck] !== 'undefined') {
        return toCheck;
      }
    }
    return null;
  }

  /**
   * Destroy the popper
   * @method
   * @memberof Popper
   */
  function destroy() {
    this.state.isDestroyed = true;

    // touch DOM only if `applyStyle` modifier is enabled
    if (isModifierEnabled(this.modifiers, 'applyStyle')) {
      this.popper.removeAttribute('x-placement');
      this.popper.style.position = '';
      this.popper.style.top = '';
      this.popper.style.left = '';
      this.popper.style.right = '';
      this.popper.style.bottom = '';
      this.popper.style.willChange = '';
      this.popper.style[getSupportedPropertyName('transform')] = '';
    }

    this.disableEventListeners();

    // remove the popper if user explicity asked for the deletion on destroy
    // do not use `remove` because IE11 doesn't support it
    if (this.options.removeOnDestroy) {
      this.popper.parentNode.removeChild(this.popper);
    }
    return this;
  }

  /**
   * Get the window associated with the element
   * @argument {Element} element
   * @returns {Window}
   */
  function getWindow(element) {
    var ownerDocument = element.ownerDocument;
    return ownerDocument ? ownerDocument.defaultView : window;
  }

  function attachToScrollParents(scrollParent, event, callback, scrollParents) {
    var isBody = scrollParent.nodeName === 'BODY';
    var target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent;
    target.addEventListener(event, callback, { passive: true });

    if (!isBody) {
      attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
    }
    scrollParents.push(target);
  }

  /**
   * Setup needed event listeners used to update the popper position
   * @method
   * @memberof Popper.Utils
   * @private
   */
  function setupEventListeners(reference, options, state, updateBound) {
    // Resize event listener on window
    state.updateBound = updateBound;
    getWindow(reference).addEventListener('resize', state.updateBound, { passive: true });

    // Scroll event listener on scroll parents
    var scrollElement = getScrollParent(reference);
    attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
    state.scrollElement = scrollElement;
    state.eventsEnabled = true;

    return state;
  }

  /**
   * It will add resize/scroll events and start recalculating
   * position of the popper element when they are triggered.
   * @method
   * @memberof Popper
   */
  function enableEventListeners() {
    if (!this.state.eventsEnabled) {
      this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
    }
  }

  /**
   * Remove event listeners used to update the popper position
   * @method
   * @memberof Popper.Utils
   * @private
   */
  function removeEventListeners(reference, state) {
    // Remove resize event listener on window
    getWindow(reference).removeEventListener('resize', state.updateBound);

    // Remove scroll event listener on scroll parents
    state.scrollParents.forEach(function (target) {
      target.removeEventListener('scroll', state.updateBound);
    });

    // Reset state
    state.updateBound = null;
    state.scrollParents = [];
    state.scrollElement = null;
    state.eventsEnabled = false;
    return state;
  }

  /**
   * It will remove resize/scroll events and won't recalculate popper position
   * when they are triggered. It also won't trigger onUpdate callback anymore,
   * unless you call `update` method manually.
   * @method
   * @memberof Popper
   */
  function disableEventListeners() {
    if (this.state.eventsEnabled) {
      cancelAnimationFrame(this.scheduleUpdate);
      this.state = removeEventListeners(this.reference, this.state);
    }
  }

  /**
   * Tells if a given input is a number
   * @method
   * @memberof Popper.Utils
   * @param {*} input to check
   * @return {Boolean}
   */
  function isNumeric(n) {
    return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
  }

  /**
   * Set the style to the given popper
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element - Element to apply the style to
   * @argument {Object} styles
   * Object with a list of properties and values which will be applied to the element
   */
  function setStyles(element, styles) {
    Object.keys(styles).forEach(function (prop) {
      var unit = '';
      // add unit if the value is numeric and is one of the following
      if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
        unit = 'px';
      }
      element.style[prop] = styles[prop] + unit;
    });
  }

  /**
   * Set the attributes to the given popper
   * @method
   * @memberof Popper.Utils
   * @argument {Element} element - Element to apply the attributes to
   * @argument {Object} styles
   * Object with a list of properties and values which will be applied to the element
   */
  function setAttributes(element, attributes) {
    Object.keys(attributes).forEach(function (prop) {
      var value = attributes[prop];
      if (value !== false) {
        element.setAttribute(prop, attributes[prop]);
      } else {
        element.removeAttribute(prop);
      }
    });
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} data.styles - List of style properties - values to apply to popper element
   * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The same data object
   */
  function applyStyle(data) {
    // any property present in `data.styles` will be applied to the popper,
    // in this way we can make the 3rd party modifiers add custom styles to it
    // Be aware, modifiers could override the properties defined in the previous
    // lines of this modifier!
    setStyles(data.instance.popper, data.styles);

    // any property present in `data.attributes` will be applied to the popper,
    // they will be set as HTML attributes of the element
    setAttributes(data.instance.popper, data.attributes);

    // if arrowElement is defined and arrowStyles has some properties
    if (data.arrowElement && Object.keys(data.arrowStyles).length) {
      setStyles(data.arrowElement, data.arrowStyles);
    }

    return data;
  }

  /**
   * Set the x-placement attribute before everything else because it could be used
   * to add margins to the popper margins needs to be calculated to get the
   * correct popper offsets.
   * @method
   * @memberof Popper.modifiers
   * @param {HTMLElement} reference - The reference element used to position the popper
   * @param {HTMLElement} popper - The HTML element used as popper
   * @param {Object} options - Popper.js options
   */
  function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
    // compute reference element offsets
    var referenceOffsets = getReferenceOffsets(state, popper, reference, options.positionFixed);

    // compute auto placement, store placement inside the data object,
    // modifiers will be able to edit `placement` if needed
    // and refer to originalPlacement to know the original value
    var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);

    popper.setAttribute('x-placement', placement);

    // Apply `position` to popper before anything else because
    // without the position applied we can't guarantee correct computations
    setStyles(popper, { position: options.positionFixed ? 'fixed' : 'absolute' });

    return options;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function computeStyle(data, options) {
    var x = options.x,
        y = options.y;
    var popper = data.offsets.popper;

    // Remove this legacy support in Popper.js v2

    var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
      return modifier.name === 'applyStyle';
    }).gpuAcceleration;
    if (legacyGpuAccelerationOption !== undefined) {
      console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
    }
    var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;

    var offsetParent = getOffsetParent(data.instance.popper);
    var offsetParentRect = getBoundingClientRect(offsetParent);

    // Styles
    var styles = {
      position: popper.position
    };

    // Avoid blurry text by using full pixel integers.
    // For pixel-perfect positioning, top/bottom prefers rounded
    // values, while left/right prefers floored values.
    var offsets = {
      left: Math.floor(popper.left),
      top: Math.round(popper.top),
      bottom: Math.round(popper.bottom),
      right: Math.floor(popper.right)
    };

    var sideA = x === 'bottom' ? 'top' : 'bottom';
    var sideB = y === 'right' ? 'left' : 'right';

    // if gpuAcceleration is set to `true` and transform is supported,
    //  we use `translate3d` to apply the position to the popper we
    // automatically use the supported prefixed version if needed
    var prefixedProperty = getSupportedPropertyName('transform');

    // now, let's make a step back and look at this code closely (wtf?)
    // If the content of the popper grows once it's been positioned, it
    // may happen that the popper gets misplaced because of the new content
    // overflowing its reference element
    // To avoid this problem, we provide two options (x and y), which allow
    // the consumer to define the offset origin.
    // If we position a popper on top of a reference element, we can set
    // `x` to `top` to make the popper grow towards its top instead of
    // its bottom.
    var left = void 0,
        top = void 0;
    if (sideA === 'bottom') {
      top = -offsetParentRect.height + offsets.bottom;
    } else {
      top = offsets.top;
    }
    if (sideB === 'right') {
      left = -offsetParentRect.width + offsets.right;
    } else {
      left = offsets.left;
    }
    if (gpuAcceleration && prefixedProperty) {
      styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
      styles[sideA] = 0;
      styles[sideB] = 0;
      styles.willChange = 'transform';
    } else {
      // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
      var invertTop = sideA === 'bottom' ? -1 : 1;
      var invertLeft = sideB === 'right' ? -1 : 1;
      styles[sideA] = top * invertTop;
      styles[sideB] = left * invertLeft;
      styles.willChange = sideA + ', ' + sideB;
    }

    // Attributes
    var attributes = {
      'x-placement': data.placement
    };

    // Update `data` attributes, styles and arrowStyles
    data.attributes = _extends$1({}, attributes, data.attributes);
    data.styles = _extends$1({}, styles, data.styles);
    data.arrowStyles = _extends$1({}, data.offsets.arrow, data.arrowStyles);

    return data;
  }

  /**
   * Helper used to know if the given modifier depends from another one.<br />
   * It checks if the needed modifier is listed and enabled.
   * @method
   * @memberof Popper.Utils
   * @param {Array} modifiers - list of modifiers
   * @param {String} requestingName - name of requesting modifier
   * @param {String} requestedName - name of requested modifier
   * @returns {Boolean}
   */
  function isModifierRequired(modifiers, requestingName, requestedName) {
    var requesting = find(modifiers, function (_ref) {
      var name = _ref.name;
      return name === requestingName;
    });

    var isRequired = !!requesting && modifiers.some(function (modifier) {
      return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
    });

    if (!isRequired) {
      var _requesting = '`' + requestingName + '`';
      var requested = '`' + requestedName + '`';
      console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
    }
    return isRequired;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function arrow(data, options) {
    var _data$offsets$arrow;

    // arrow depends on keepTogether in order to work
    if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
      return data;
    }

    var arrowElement = options.element;

    // if arrowElement is a string, suppose it's a CSS selector
    if (typeof arrowElement === 'string') {
      arrowElement = data.instance.popper.querySelector(arrowElement);

      // if arrowElement is not found, don't run the modifier
      if (!arrowElement) {
        return data;
      }
    } else {
      // if the arrowElement isn't a query selector we must check that the
      // provided DOM node is child of its popper node
      if (!data.instance.popper.contains(arrowElement)) {
        console.warn('WARNING: `arrow.element` must be child of its popper element!');
        return data;
      }
    }

    var placement = data.placement.split('-')[0];
    var _data$offsets = data.offsets,
        popper = _data$offsets.popper,
        reference = _data$offsets.reference;

    var isVertical = ['left', 'right'].indexOf(placement) !== -1;

    var len = isVertical ? 'height' : 'width';
    var sideCapitalized = isVertical ? 'Top' : 'Left';
    var side = sideCapitalized.toLowerCase();
    var altSide = isVertical ? 'left' : 'top';
    var opSide = isVertical ? 'bottom' : 'right';
    var arrowElementSize = getOuterSizes(arrowElement)[len];

    //
    // extends keepTogether behavior making sure the popper and its
    // reference have enough pixels in conjuction
    //

    // top/left side
    if (reference[opSide] - arrowElementSize < popper[side]) {
      data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
    }
    // bottom/right side
    if (reference[side] + arrowElementSize > popper[opSide]) {
      data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
    }
    data.offsets.popper = getClientRect(data.offsets.popper);

    // compute center of the popper
    var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;

    // Compute the sideValue using the updated popper offsets
    // take popper margin in account because we don't have this info available
    var css = getStyleComputedProperty(data.instance.popper);
    var popperMarginSide = parseFloat(css['margin' + sideCapitalized], 10);
    var popperBorderSide = parseFloat(css['border' + sideCapitalized + 'Width'], 10);
    var sideValue = center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;

    // prevent arrowElement from being placed not contiguously to its popper
    sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);

    data.arrowElement = arrowElement;
    data.offsets.arrow = (_data$offsets$arrow = {}, defineProperty$2(_data$offsets$arrow, side, Math.round(sideValue)), defineProperty$2(_data$offsets$arrow, altSide, ''), _data$offsets$arrow);

    return data;
  }

  /**
   * Get the opposite placement variation of the given one
   * @method
   * @memberof Popper.Utils
   * @argument {String} placement variation
   * @returns {String} flipped placement variation
   */
  function getOppositeVariation(variation) {
    if (variation === 'end') {
      return 'start';
    } else if (variation === 'start') {
      return 'end';
    }
    return variation;
  }

  /**
   * List of accepted placements to use as values of the `placement` option.<br />
   * Valid placements are:
   * - `auto`
   * - `top`
   * - `right`
   * - `bottom`
   * - `left`
   *
   * Each placement can have a variation from this list:
   * - `-start`
   * - `-end`
   *
   * Variations are interpreted easily if you think of them as the left to right
   * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
   * is right.<br />
   * Vertically (`left` and `right`), `start` is top and `end` is bottom.
   *
   * Some valid examples are:
   * - `top-end` (on top of reference, right aligned)
   * - `right-start` (on right of reference, top aligned)
   * - `bottom` (on bottom, centered)
   * - `auto-right` (on the side with more space available, alignment depends by placement)
   *
   * @static
   * @type {Array}
   * @enum {String}
   * @readonly
   * @method placements
   * @memberof Popper
   */
  var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];

  // Get rid of `auto` `auto-start` and `auto-end`
  var validPlacements = placements.slice(3);

  /**
   * Given an initial placement, returns all the subsequent placements
   * clockwise (or counter-clockwise).
   *
   * @method
   * @memberof Popper.Utils
   * @argument {String} placement - A valid placement (it accepts variations)
   * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
   * @returns {Array} placements including their variations
   */
  function clockwise(placement) {
    var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

    var index = validPlacements.indexOf(placement);
    var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
    return counter ? arr.reverse() : arr;
  }

  var BEHAVIORS = {
    FLIP: 'flip',
    CLOCKWISE: 'clockwise',
    COUNTERCLOCKWISE: 'counterclockwise'
  };

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function flip(data, options) {
    // if `inner` modifier is enabled, we can't use the `flip` modifier
    if (isModifierEnabled(data.instance.modifiers, 'inner')) {
      return data;
    }

    if (data.flipped && data.placement === data.originalPlacement) {
      // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
      return data;
    }

    var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement, data.positionFixed);

    var placement = data.placement.split('-')[0];
    var placementOpposite = getOppositePlacement(placement);
    var variation = data.placement.split('-')[1] || '';

    var flipOrder = [];

    switch (options.behavior) {
      case BEHAVIORS.FLIP:
        flipOrder = [placement, placementOpposite];
        break;
      case BEHAVIORS.CLOCKWISE:
        flipOrder = clockwise(placement);
        break;
      case BEHAVIORS.COUNTERCLOCKWISE:
        flipOrder = clockwise(placement, true);
        break;
      default:
        flipOrder = options.behavior;
    }

    flipOrder.forEach(function (step, index) {
      if (placement !== step || flipOrder.length === index + 1) {
        return data;
      }

      placement = data.placement.split('-')[0];
      placementOpposite = getOppositePlacement(placement);

      var popperOffsets = data.offsets.popper;
      var refOffsets = data.offsets.reference;

      // using floor because the reference offsets may contain decimals we are not going to consider here
      var floor = Math.floor;
      var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);

      var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
      var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
      var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
      var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);

      var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;

      // flip the variation if required
      var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
      var flippedVariation = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);

      if (overlapsRef || overflowsBoundaries || flippedVariation) {
        // this boolean to detect any flip loop
        data.flipped = true;

        if (overlapsRef || overflowsBoundaries) {
          placement = flipOrder[index + 1];
        }

        if (flippedVariation) {
          variation = getOppositeVariation(variation);
        }

        data.placement = placement + (variation ? '-' + variation : '');

        // this object contains `position`, we want to preserve it along with
        // any additional property we may add in the future
        data.offsets.popper = _extends$1({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));

        data = runModifiers(data.instance.modifiers, data, 'flip');
      }
    });
    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function keepTogether(data) {
    var _data$offsets = data.offsets,
        popper = _data$offsets.popper,
        reference = _data$offsets.reference;

    var placement = data.placement.split('-')[0];
    var floor = Math.floor;
    var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
    var side = isVertical ? 'right' : 'bottom';
    var opSide = isVertical ? 'left' : 'top';
    var measurement = isVertical ? 'width' : 'height';

    if (popper[side] < floor(reference[opSide])) {
      data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
    }
    if (popper[opSide] > floor(reference[side])) {
      data.offsets.popper[opSide] = floor(reference[side]);
    }

    return data;
  }

  /**
   * Converts a string containing value + unit into a px value number
   * @function
   * @memberof {modifiers~offset}
   * @private
   * @argument {String} str - Value + unit string
   * @argument {String} measurement - `height` or `width`
   * @argument {Object} popperOffsets
   * @argument {Object} referenceOffsets
   * @returns {Number|String}
   * Value in pixels, or original string if no values were extracted
   */
  function toValue(str, measurement, popperOffsets, referenceOffsets) {
    // separate value from unit
    var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
    var value = +split[1];
    var unit = split[2];

    // If it's not a number it's an operator, I guess
    if (!value) {
      return str;
    }

    if (unit.indexOf('%') === 0) {
      var element = void 0;
      switch (unit) {
        case '%p':
          element = popperOffsets;
          break;
        case '%':
        case '%r':
        default:
          element = referenceOffsets;
      }

      var rect = getClientRect(element);
      return rect[measurement] / 100 * value;
    } else if (unit === 'vh' || unit === 'vw') {
      // if is a vh or vw, we calculate the size based on the viewport
      var size = void 0;
      if (unit === 'vh') {
        size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
      } else {
        size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
      }
      return size / 100 * value;
    } else {
      // if is an explicit pixel unit, we get rid of the unit and keep the value
      // if is an implicit unit, it's px, and we return just the value
      return value;
    }
  }

  /**
   * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
   * @function
   * @memberof {modifiers~offset}
   * @private
   * @argument {String} offset
   * @argument {Object} popperOffsets
   * @argument {Object} referenceOffsets
   * @argument {String} basePlacement
   * @returns {Array} a two cells array with x and y offsets in numbers
   */
  function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
    var offsets = [0, 0];

    // Use height if placement is left or right and index is 0 otherwise use width
    // in this way the first offset will use an axis and the second one
    // will use the other one
    var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;

    // Split the offset string to obtain a list of values and operands
    // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
    var fragments = offset.split(/(\+|\-)/).map(function (frag) {
      return frag.trim();
    });

    // Detect if the offset string contains a pair of values or a single one
    // they could be separated by comma or space
    var divider = fragments.indexOf(find(fragments, function (frag) {
      return frag.search(/,|\s/) !== -1;
    }));

    if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
      console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
    }

    // If divider is found, we divide the list of values and operands to divide
    // them by ofset X and Y.
    var splitRegex = /\s*,\s*|\s+/;
    var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];

    // Convert the values with units to absolute pixels to allow our computations
    ops = ops.map(function (op, index) {
      // Most of the units rely on the orientation of the popper
      var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
      var mergeWithPrevious = false;
      return op
      // This aggregates any `+` or `-` sign that aren't considered operators
      // e.g.: 10 + +5 => [10, +, +5]
      .reduce(function (a, b) {
        if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
          a[a.length - 1] = b;
          mergeWithPrevious = true;
          return a;
        } else if (mergeWithPrevious) {
          a[a.length - 1] += b;
          mergeWithPrevious = false;
          return a;
        } else {
          return a.concat(b);
        }
      }, [])
      // Here we convert the string values into number values (in px)
      .map(function (str) {
        return toValue(str, measurement, popperOffsets, referenceOffsets);
      });
    });

    // Loop trough the offsets arrays and execute the operations
    ops.forEach(function (op, index) {
      op.forEach(function (frag, index2) {
        if (isNumeric(frag)) {
          offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
        }
      });
    });
    return offsets;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @argument {Number|String} options.offset=0
   * The offset value as described in the modifier description
   * @returns {Object} The data object, properly modified
   */
  function offset$1(data, _ref) {
    var offset = _ref.offset;
    var placement = data.placement,
        _data$offsets = data.offsets,
        popper = _data$offsets.popper,
        reference = _data$offsets.reference;

    var basePlacement = placement.split('-')[0];

    var offsets = void 0;
    if (isNumeric(+offset)) {
      offsets = [+offset, 0];
    } else {
      offsets = parseOffset(offset, popper, reference, basePlacement);
    }

    if (basePlacement === 'left') {
      popper.top += offsets[0];
      popper.left -= offsets[1];
    } else if (basePlacement === 'right') {
      popper.top += offsets[0];
      popper.left += offsets[1];
    } else if (basePlacement === 'top') {
      popper.left += offsets[0];
      popper.top -= offsets[1];
    } else if (basePlacement === 'bottom') {
      popper.left += offsets[0];
      popper.top += offsets[1];
    }

    data.popper = popper;
    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function preventOverflow(data, options) {
    var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);

    // If offsetParent is the reference element, we really want to
    // go one step up and use the next offsetParent as reference to
    // avoid to make this modifier completely useless and look like broken
    if (data.instance.reference === boundariesElement) {
      boundariesElement = getOffsetParent(boundariesElement);
    }

    // NOTE: DOM access here
    // resets the popper's position so that the document size can be calculated excluding
    // the size of the popper element itself
    var transformProp = getSupportedPropertyName('transform');
    var popperStyles = data.instance.popper.style; // assignment to help minification
    var top = popperStyles.top,
        left = popperStyles.left,
        transform = popperStyles[transformProp];

    popperStyles.top = '';
    popperStyles.left = '';
    popperStyles[transformProp] = '';

    var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement, data.positionFixed);

    // NOTE: DOM access here
    // restores the original style properties after the offsets have been computed
    popperStyles.top = top;
    popperStyles.left = left;
    popperStyles[transformProp] = transform;

    options.boundaries = boundaries;

    var order = options.priority;
    var popper = data.offsets.popper;

    var check = {
      primary: function primary(placement) {
        var value = popper[placement];
        if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
          value = Math.max(popper[placement], boundaries[placement]);
        }
        return defineProperty$2({}, placement, value);
      },
      secondary: function secondary(placement) {
        var mainSide = placement === 'right' ? 'left' : 'top';
        var value = popper[mainSide];
        if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
          value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
        }
        return defineProperty$2({}, mainSide, value);
      }
    };

    order.forEach(function (placement) {
      var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
      popper = _extends$1({}, popper, check[side](placement));
    });

    data.offsets.popper = popper;

    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function shift(data) {
    var placement = data.placement;
    var basePlacement = placement.split('-')[0];
    var shiftvariation = placement.split('-')[1];

    // if shift shiftvariation is specified, run the modifier
    if (shiftvariation) {
      var _data$offsets = data.offsets,
          reference = _data$offsets.reference,
          popper = _data$offsets.popper;

      var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
      var side = isVertical ? 'left' : 'top';
      var measurement = isVertical ? 'width' : 'height';

      var shiftOffsets = {
        start: defineProperty$2({}, side, reference[side]),
        end: defineProperty$2({}, side, reference[side] + reference[measurement] - popper[measurement])
      };

      data.offsets.popper = _extends$1({}, popper, shiftOffsets[shiftvariation]);
    }

    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by update method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function hide(data) {
    if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
      return data;
    }

    var refRect = data.offsets.reference;
    var bound = find(data.instance.modifiers, function (modifier) {
      return modifier.name === 'preventOverflow';
    }).boundaries;

    if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
      // Avoid unnecessary DOM access if visibility hasn't changed
      if (data.hide === true) {
        return data;
      }

      data.hide = true;
      data.attributes['x-out-of-boundaries'] = '';
    } else {
      // Avoid unnecessary DOM access if visibility hasn't changed
      if (data.hide === false) {
        return data;
      }

      data.hide = false;
      data.attributes['x-out-of-boundaries'] = false;
    }

    return data;
  }

  /**
   * @function
   * @memberof Modifiers
   * @argument {Object} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {Object} The data object, properly modified
   */
  function inner(data) {
    var placement = data.placement;
    var basePlacement = placement.split('-')[0];
    var _data$offsets = data.offsets,
        popper = _data$offsets.popper,
        reference = _data$offsets.reference;

    var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;

    var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;

    popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);

    data.placement = getOppositePlacement(placement);
    data.offsets.popper = getClientRect(popper);

    return data;
  }

  /**
   * Modifier function, each modifier can have a function of this type assigned
   * to its `fn` property.<br />
   * These functions will be called on each update, this means that you must
   * make sure they are performant enough to avoid performance bottlenecks.
   *
   * @function ModifierFn
   * @argument {dataObject} data - The data object generated by `update` method
   * @argument {Object} options - Modifiers configuration and options
   * @returns {dataObject} The data object, properly modified
   */

  /**
   * Modifiers are plugins used to alter the behavior of your poppers.<br />
   * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
   * needed by the library.
   *
   * Usually you don't want to override the `order`, `fn` and `onLoad` props.
   * All the other properties are configurations that could be tweaked.
   * @namespace modifiers
   */
  var modifiers = {
    /**
     * Modifier used to shift the popper on the start or end of its reference
     * element.<br />
     * It will read the variation of the `placement` property.<br />
     * It can be one either `-end` or `-start`.
     * @memberof modifiers
     * @inner
     */
    shift: {
      /** @prop {number} order=100 - Index used to define the order of execution */
      order: 100,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: shift
    },

    /**
     * The `offset` modifier can shift your popper on both its axis.
     *
     * It accepts the following units:
     * - `px` or unitless, interpreted as pixels
     * - `%` or `%r`, percentage relative to the length of the reference element
     * - `%p`, percentage relative to the length of the popper element
     * - `vw`, CSS viewport width unit
     * - `vh`, CSS viewport height unit
     *
     * For length is intended the main axis relative to the placement of the popper.<br />
     * This means that if the placement is `top` or `bottom`, the length will be the
     * `width`. In case of `left` or `right`, it will be the height.
     *
     * You can provide a single value (as `Number` or `String`), or a pair of values
     * as `String` divided by a comma or one (or more) white spaces.<br />
     * The latter is a deprecated method because it leads to confusion and will be
     * removed in v2.<br />
     * Additionally, it accepts additions and subtractions between different units.
     * Note that multiplications and divisions aren't supported.
     *
     * Valid examples are:
     * ```
     * 10
     * '10%'
     * '10, 10'
     * '10%, 10'
     * '10 + 10%'
     * '10 - 5vh + 3%'
     * '-10px + 5vh, 5px - 6%'
     * ```
     * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
     * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
     * > More on this [reading this issue](https://github.com/FezVrasta/popper.js/issues/373)
     *
     * @memberof modifiers
     * @inner
     */
    offset: {
      /** @prop {number} order=200 - Index used to define the order of execution */
      order: 200,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: offset$1,
      /** @prop {Number|String} offset=0
       * The offset value as described in the modifier description
       */
      offset: 0
    },

    /**
     * Modifier used to prevent the popper from being positioned outside the boundary.
     *
     * An scenario exists where the reference itself is not within the boundaries.<br />
     * We can say it has "escaped the boundaries" — or just "escaped".<br />
     * In this case we need to decide whether the popper should either:
     *
     * - detach from the reference and remain "trapped" in the boundaries, or
     * - if it should ignore the boundary and "escape with its reference"
     *
     * When `escapeWithReference` is set to`true` and reference is completely
     * outside its boundaries, the popper will overflow (or completely leave)
     * the boundaries in order to remain attached to the edge of the reference.
     *
     * @memberof modifiers
     * @inner
     */
    preventOverflow: {
      /** @prop {number} order=300 - Index used to define the order of execution */
      order: 300,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: preventOverflow,
      /**
       * @prop {Array} [priority=['left','right','top','bottom']]
       * Popper will try to prevent overflow following these priorities by default,
       * then, it could overflow on the left and on top of the `boundariesElement`
       */
      priority: ['left', 'right', 'top', 'bottom'],
      /**
       * @prop {number} padding=5
       * Amount of pixel used to define a minimum distance between the boundaries
       * and the popper this makes sure the popper has always a little padding
       * between the edges of its container
       */
      padding: 5,
      /**
       * @prop {String|HTMLElement} boundariesElement='scrollParent'
       * Boundaries used by the modifier, can be `scrollParent`, `window`,
       * `viewport` or any DOM element.
       */
      boundariesElement: 'scrollParent'
    },

    /**
     * Modifier used to make sure the reference and its popper stay near eachothers
     * without leaving any gap between the two. Expecially useful when the arrow is
     * enabled and you want to assure it to point to its reference element.
     * It cares only about the first axis, you can still have poppers with margin
     * between the popper and its reference element.
     * @memberof modifiers
     * @inner
     */
    keepTogether: {
      /** @prop {number} order=400 - Index used to define the order of execution */
      order: 400,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: keepTogether
    },

    /**
     * This modifier is used to move the `arrowElement` of the popper to make
     * sure it is positioned between the reference element and its popper element.
     * It will read the outer size of the `arrowElement` node to detect how many
     * pixels of conjuction are needed.
     *
     * It has no effect if no `arrowElement` is provided.
     * @memberof modifiers
     * @inner
     */
    arrow: {
      /** @prop {number} order=500 - Index used to define the order of execution */
      order: 500,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: arrow,
      /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
      element: '[x-arrow]'
    },

    /**
     * Modifier used to flip the popper's placement when it starts to overlap its
     * reference element.
     *
     * Requires the `preventOverflow` modifier before it in order to work.
     *
     * **NOTE:** this modifier will interrupt the current update cycle and will
     * restart it if it detects the need to flip the placement.
     * @memberof modifiers
     * @inner
     */
    flip: {
      /** @prop {number} order=600 - Index used to define the order of execution */
      order: 600,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: flip,
      /**
       * @prop {String|Array} behavior='flip'
       * The behavior used to change the popper's placement. It can be one of
       * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
       * placements (with optional variations).
       */
      behavior: 'flip',
      /**
       * @prop {number} padding=5
       * The popper will flip if it hits the edges of the `boundariesElement`
       */
      padding: 5,
      /**
       * @prop {String|HTMLElement} boundariesElement='viewport'
       * The element which will define the boundaries of the popper position,
       * the popper will never be placed outside of the defined boundaries
       * (except if keepTogether is enabled)
       */
      boundariesElement: 'viewport'
    },

    /**
     * Modifier used to make the popper flow toward the inner of the reference element.
     * By default, when this modifier is disabled, the popper will be placed outside
     * the reference element.
     * @memberof modifiers
     * @inner
     */
    inner: {
      /** @prop {number} order=700 - Index used to define the order of execution */
      order: 700,
      /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
      enabled: false,
      /** @prop {ModifierFn} */
      fn: inner
    },

    /**
     * Modifier used to hide the popper when its reference element is outside of the
     * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
     * be used to hide with a CSS selector the popper when its reference is
     * out of boundaries.
     *
     * Requires the `preventOverflow` modifier before it in order to work.
     * @memberof modifiers
     * @inner
     */
    hide: {
      /** @prop {number} order=800 - Index used to define the order of execution */
      order: 800,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: hide
    },

    /**
     * Computes the style that will be applied to the popper element to gets
     * properly positioned.
     *
     * Note that this modifier will not touch the DOM, it just prepares the styles
     * so that `applyStyle` modifier can apply it. This separation is useful
     * in case you need to replace `applyStyle` with a custom implementation.
     *
     * This modifier has `850` as `order` value to maintain backward compatibility
     * with previous versions of Popper.js. Expect the modifiers ordering method
     * to change in future major versions of the library.
     *
     * @memberof modifiers
     * @inner
     */
    computeStyle: {
      /** @prop {number} order=850 - Index used to define the order of execution */
      order: 850,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: computeStyle,
      /**
       * @prop {Boolean} gpuAcceleration=true
       * If true, it uses the CSS 3d transformation to position the popper.
       * Otherwise, it will use the `top` and `left` properties.
       */
      gpuAcceleration: true,
      /**
       * @prop {string} [x='bottom']
       * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
       * Change this if your popper should grow in a direction different from `bottom`
       */
      x: 'bottom',
      /**
       * @prop {string} [x='left']
       * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
       * Change this if your popper should grow in a direction different from `right`
       */
      y: 'right'
    },

    /**
     * Applies the computed styles to the popper element.
     *
     * All the DOM manipulations are limited to this modifier. This is useful in case
     * you want to integrate Popper.js inside a framework or view library and you
     * want to delegate all the DOM manipulations to it.
     *
     * Note that if you disable this modifier, you must make sure the popper element
     * has its position set to `absolute` before Popper.js can do its work!
     *
     * Just disable this modifier and define you own to achieve the desired effect.
     *
     * @memberof modifiers
     * @inner
     */
    applyStyle: {
      /** @prop {number} order=900 - Index used to define the order of execution */
      order: 900,
      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
      enabled: true,
      /** @prop {ModifierFn} */
      fn: applyStyle,
      /** @prop {Function} */
      onLoad: applyStyleOnLoad,
      /**
       * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
       * @prop {Boolean} gpuAcceleration=true
       * If true, it uses the CSS 3d transformation to position the popper.
       * Otherwise, it will use the `top` and `left` properties.
       */
      gpuAcceleration: undefined
    }
  };

  /**
   * The `dataObject` is an object containing all the informations used by Popper.js
   * this object get passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
   * @name dataObject
   * @property {Object} data.instance The Popper.js instance
   * @property {String} data.placement Placement applied to popper
   * @property {String} data.originalPlacement Placement originally defined on init
   * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
   * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper.
   * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
   * @property {Object} data.styles Any CSS property defined here will be applied to the popper, it expects the JavaScript nomenclature (eg. `marginBottom`)
   * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow, it expects the JavaScript nomenclature (eg. `marginBottom`)
   * @property {Object} data.boundaries Offsets of the popper boundaries
   * @property {Object} data.offsets The measurements of popper, reference and arrow elements.
   * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
   * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
   * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
   */

  /**
   * Default options provided to Popper.js constructor.<br />
   * These can be overriden using the `options` argument of Popper.js.<br />
   * To override an option, simply pass as 3rd argument an object with the same
   * structure of this object, example:
   * ```
   * new Popper(ref, pop, {
   *   modifiers: {
   *     preventOverflow: { enabled: false }
   *   }
   * })
   * ```
   * @type {Object}
   * @static
   * @memberof Popper
   */
  var Defaults = {
    /**
     * Popper's placement
     * @prop {Popper.placements} placement='bottom'
     */
    placement: 'bottom',

    /**
     * Set this to true if you want popper to position it self in 'fixed' mode
     * @prop {Boolean} positionFixed=false
     */
    positionFixed: false,

    /**
     * Whether events (resize, scroll) are initially enabled
     * @prop {Boolean} eventsEnabled=true
     */
    eventsEnabled: true,

    /**
     * Set to true if you want to automatically remove the popper when
     * you call the `destroy` method.
     * @prop {Boolean} removeOnDestroy=false
     */
    removeOnDestroy: false,

    /**
     * Callback called when the popper is created.<br />
     * By default, is set to no-op.<br />
     * Access Popper.js instance with `data.instance`.
     * @prop {onCreate}
     */
    onCreate: function onCreate() {},

    /**
     * Callback called when the popper is updated, this callback is not called
     * on the initialization/creation of the popper, but only on subsequent
     * updates.<br />
     * By default, is set to no-op.<br />
     * Access Popper.js instance with `data.instance`.
     * @prop {onUpdate}
     */
    onUpdate: function onUpdate() {},

    /**
     * List of modifiers used to modify the offsets before they are applied to the popper.
     * They provide most of the functionalities of Popper.js
     * @prop {modifiers}
     */
    modifiers: modifiers
  };

  /**
   * @callback onCreate
   * @param {dataObject} data
   */

  /**
   * @callback onUpdate
   * @param {dataObject} data
   */

  // Utils
  // Methods
  var Popper = function () {
    /**
     * Create a new Popper.js instance
     * @class Popper
     * @param {HTMLElement|referenceObject} reference - The reference element used to position the popper
     * @param {HTMLElement} popper - The HTML element used as popper.
     * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
     * @return {Object} instance - The generated Popper.js instance
     */
    function Popper(reference, popper) {
      var _this = this;

      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      classCallCheck$1(this, Popper);

      this.scheduleUpdate = function () {
        return requestAnimationFrame(_this.update);
      };

      // make update() debounced, so that it only runs at most once-per-tick
      this.update = debounce(this.update.bind(this));

      // with {} we create a new object with the options inside it
      this.options = _extends$1({}, Popper.Defaults, options);

      // init state
      this.state = {
        isDestroyed: false,
        isCreated: false,
        scrollParents: []
      };

      // get reference and popper elements (allow jQuery wrappers)
      this.reference = reference && reference.jquery ? reference[0] : reference;
      this.popper = popper && popper.jquery ? popper[0] : popper;

      // Deep merge modifiers options
      this.options.modifiers = {};
      Object.keys(_extends$1({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
        _this.options.modifiers[name] = _extends$1({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
      });

      // Refactoring modifiers' list (Object => Array)
      this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
        return _extends$1({
          name: name
        }, _this.options.modifiers[name]);
      })
      // sort the modifiers by order
      .sort(function (a, b) {
        return a.order - b.order;
      });

      // modifiers have the ability to execute arbitrary code when Popper.js get inited
      // such code is executed in the same order of its modifier
      // they could add new properties to their options configuration
      // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
      this.modifiers.forEach(function (modifierOptions) {
        if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
          modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
        }
      });

      // fire the first update to position the popper in the right place
      this.update();

      var eventsEnabled = this.options.eventsEnabled;
      if (eventsEnabled) {
        // setup event listeners, they will take care of update the position in specific situations
        this.enableEventListeners();
      }

      this.state.eventsEnabled = eventsEnabled;
    }

    // We can't use class properties because they don't get listed in the
    // class prototype and break stuff like Sinon stubs


    createClass$1(Popper, [{
      key: 'update',
      value: function update$$1() {
        return update.call(this);
      }
    }, {
      key: 'destroy',
      value: function destroy$$1() {
        return destroy.call(this);
      }
    }, {
      key: 'enableEventListeners',
      value: function enableEventListeners$$1() {
        return enableEventListeners.call(this);
      }
    }, {
      key: 'disableEventListeners',
      value: function disableEventListeners$$1() {
        return disableEventListeners.call(this);
      }

      /**
       * Schedule an update, it will run on the next UI update available
       * @method scheduleUpdate
       * @memberof Popper
       */

      /**
       * Collection of utilities useful when writing custom modifiers.
       * Starting from version 1.7, this method is available only if you
       * include `popper-utils.js` before `popper.js`.
       *
       * **DEPRECATION**: This way to access PopperUtils is deprecated
       * and will be removed in v2! Use the PopperUtils module directly instead.
       * Due to the high instability of the methods contained in Utils, we can't
       * guarantee them to follow semver. Use them at your own risk!
       * @static
       * @private
       * @type {Object}
       * @deprecated since version 1.8
       * @member Utils
       * @memberof Popper
       */

    }]);
    return Popper;
  }();

  /**
   * The `referenceObject` is an object that provides an interface compatible with Popper.js
   * and lets you use it as replacement of a real DOM node.<br />
   * You can use this method to position a popper relatively to a set of coordinates
   * in case you don't have a DOM node to use as reference.
   *
   * ```
   * new Popper(referenceObject, popperNode);
   * ```
   *
   * NB: This feature isn't supported in Internet Explorer 10
   * @name referenceObject
   * @property {Function} data.getBoundingClientRect
   * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
   * @property {number} data.clientWidth
   * An ES6 getter that will return the width of the virtual reference element.
   * @property {number} data.clientHeight
   * An ES6 getter that will return the height of the virtual reference element.
   */

  Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
  Popper.placements = placements;
  Popper.Defaults = Defaults;

  var clickoutMixin = {
    mounted: function mounted() {
      if (typeof document !== 'undefined') {
        document.documentElement.addEventListener('click', this._clickOutListener);
      }
    },
    beforeDestroy: function beforeDestroy() {
      if (typeof document !== 'undefined') {
        document.documentElement.removeEventListener('click', this._clickOutListener);
      }
    },

    methods: {
      _clickOutListener: function _clickOutListener(e) {
        if (!this.$el.contains(e.target)) {
          if (this.clickOutListener) {
            this.clickOutListener();
          }
        }
      }
    }
  };

  var BvEvent = function () {
    function BvEvent(type) {
      var eventInit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      classCallCheck(this, BvEvent);

      // Start by emulating native Event constructor.
      if (!type) {
        throw new TypeError('Failed to construct \'' + this.constructor.name + '\'. 1 argument required, ' + arguments.length + ' given.');
      }
      // Assign defaults first, the eventInit,
      // and the type last so it can't be overwritten.
      assign(this, BvEvent.defaults(), eventInit, { type: type });
      // Freeze some props as readonly, but leave them enumerable.
      defineProperties(this, {
        type: readonlyDescriptor(),
        cancelable: readonlyDescriptor(),
        nativeEvent: readonlyDescriptor(),
        target: readonlyDescriptor(),
        relatedTarget: readonlyDescriptor(),
        vueTarget: readonlyDescriptor()
      });
      // Create a private variable using closure scoping.
      var defaultPrevented = false;
      // Recreate preventDefault method. One way setter.
      this.preventDefault = function preventDefault() {
        if (this.cancelable) {
          defaultPrevented = true;
        }
      };
      // Create 'defaultPrevented' publicly accessible prop
      // that can only be altered by the preventDefault method.
      defineProperty$1(this, 'defaultPrevented', {
        enumerable: true,
        get: function get$$1() {
          return defaultPrevented;
        }
      });
    }

    createClass(BvEvent, null, [{
      key: 'defaults',
      value: function defaults$$1() {
        return {
          type: '',
          cancelable: true,
          nativeEvent: null,
          target: null,
          relatedTarget: null,
          vueTarget: null
        };
      }
    }]);
    return BvEvent;
  }();

  // Return an Array of visible items
  function filterVisible(els) {
    return (els || []).filter(isVisible);
  }

  // Dropdown item CSS selectors
  // TODO: .dropdown-form handling
  var ITEM_SELECTOR$1 = '.dropdown-item:not(.disabled):not([disabled])';

  // Popper attachment positions
  var AttachmentMap = {
    // DropUp Left Align
    TOP: 'top-start',
    // DropUp Right Align
    TOPEND: 'top-end',
    // Dropdown left Align
    BOTTOM: 'bottom-start',
    // Dropdown Right Align
    BOTTOMEND: 'bottom-end'
  };

  var dropdownMixin = {
    mixins: [clickoutMixin, listenOnRootMixin],
    props: {
      disabled: {
        type: Boolean,
        default: false
      },
      text: {
        // Button label
        type: String,
        default: ''
      },
      dropup: {
        // place on top if possible
        type: Boolean,
        default: false
      },
      right: {
        // Right align menu (default is left align)
        type: Boolean,
        default: false
      },
      offset: {
        // Number of pixels to offset menu, or a CSS unit value (i.e. 1px, 1rem, etc)
        type: [Number, String],
        default: 0
      },
      noFlip: {
        // Disable auto-flipping of menu from bottom<=>top
        type: Boolean,
        default: false
      },
      popperOpts: {
        type: Object,
        default: function _default() {}
      }
    },
    data: function data() {
      return {
        visible: false,
        inNavbar: null,
        visibleChangePrevented: false
      };
    },
    created: function created() {
      // Create non-reactive property
      this._popper = null;
    },
    mounted: function mounted() {
      // To keep one dropdown opened on page
      this.listenOnRoot('bv::dropdown::shown', this.rootCloseListener);
      // Hide when clicked on links
      this.listenOnRoot('clicked::link', this.rootCloseListener);
      // Use new namespaced events
      this.listenOnRoot('bv::link::clicked', this.rootCloseListener);
    },

    /* istanbul ignore next: not easy to test */
    deactivated: function deactivated() {
      // In case we are inside a `<keep-alive>`
      this.visible = false;
      this.setTouchStart(false);
      this.removePopper();
    },

    /* istanbul ignore next: not easy to test */
    beforeDestroy: function beforeDestroy() {
      this.visible = false;
      this.setTouchStart(false);
      this.removePopper();
    },

    watch: {
      visible: function visible(newValue, oldValue) {
        if (this.visibleChangePrevented) {
          this.visibleChangePrevented = false;
          return;
        }

        if (newValue !== oldValue) {
          var evtName = newValue ? 'show' : 'hide';
          var bvEvt = new BvEvent(evtName, {
            cancelable: true,
            vueTarget: this,
            target: this.$refs.menu,
            relatedTarget: null
          });
          this.emitEvent(bvEvt);
          if (bvEvt.defaultPrevented) {
            // Reset value and exit if canceled
            this.visibleChangePrevented = true;
            this.visible = oldValue;
            return;
          }
          if (evtName === 'show') {
            this.showMenu();
          } else {
            this.hideMenu();
          }
        }
      },
      disabled: function disabled(newValue, oldValue) {
        if (newValue !== oldValue && newValue && this.visible) {
          // Hide dropdown if disabled changes to true
          this.visible = false;
        }
      }
    },
    computed: {
      toggler: function toggler() {
        return this.$refs.toggle.$el || this.$refs.toggle;
      }
    },
    methods: {
      // Event emitter
      emitEvent: function emitEvent(bvEvt) {
        var type = bvEvt.type;
        this.$emit(type, bvEvt);
        this.emitOnRoot('bv::dropdown::' + type, bvEvt);
      },
      showMenu: function showMenu() {
        if (this.disabled) {
          return;
        }
        // Ensure other menus are closed
        this.emitOnRoot('bv::dropdown::shown', this);

        // Are we in a navbar ?
        if (this.inNavbar === null && this.isNav) {
          this.inNavbar = Boolean(closest('.navbar', this.$el));
        }

        // Disable totally Popper.js for Dropdown in Navbar
        /* istnbul ignore next: can't test popper in JSDOM */
        if (!this.inNavbar) {
          if (typeof Popper === 'undefined') {
            warn('b-dropdown: Popper.js not found. Falling back to CSS positioning.');
          } else {
            // for dropup with alignment we use the parent element as popper container
            var element = this.dropup && this.right || this.split ? this.$el : this.$refs.toggle;
            // Make sure we have a reference to an element, not a component!
            element = element.$el || element;
            // Instantiate popper.js
            this.createPopper(element);
          }
        }

        this.setTouchStart(true);
        this.$emit('shown');

        // Focus on the first item on show
        this.$nextTick(this.focusFirstItem);
      },
      hideMenu: function hideMenu() {
        this.setTouchStart(false);
        this.emitOnRoot('bv::dropdown::hidden', this);
        this.$emit('hidden');
        this.removePopper();
      },
      createPopper: function createPopper(element) {
        this.removePopper();
        this._popper = new Popper(element, this.$refs.menu, this.getPopperConfig());
      },
      removePopper: function removePopper() {
        if (this._popper) {
          // Ensure popper event listeners are removed cleanly
          this._popper.destroy();
        }
        this._popper = null;
      },
      getPopperConfig /* istanbul ignore next: can't test popper in JSDOM */: function getPopperConfig() {
        var placement = AttachmentMap.BOTTOM;
        if (this.dropup && this.right) {
          // dropup + right
          placement = AttachmentMap.TOPEND;
        } else if (this.dropup) {
          // dropup + left
          placement = AttachmentMap.TOP;
        } else if (this.right) {
          // dropdown + right
          placement = AttachmentMap.BOTTOMEND;
        }
        var popperConfig = {
          placement: placement,
          modifiers: {
            offset: {
              offset: this.offset || 0
            },
            flip: {
              enabled: !this.noFlip
            }
          }
        };
        if (this.boundary) {
          popperConfig.modifiers.preventOverflow = {
            boundariesElement: this.boundary
          };
        }
        return assign(popperConfig, this.popperOpts || {});
      },
      setTouchStart: function setTouchStart(on) {
        var _this = this;

        /*
         * 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) {
          var children = from(document.body.children);
          children.forEach(function (el) {
            if (on) {
              eventOn('mouseover', _this._noop);
            } else {
              eventOff('mouseover', _this._noop);
            }
          });
        }
      },

      /* istanbul ignore next: not easy to test */
      _noop: function _noop() {
        // Do nothing event handler (used in touchstart event handler)
      },
      rootCloseListener: function rootCloseListener(vm) {
        if (vm !== this) {
          this.visible = false;
        }
      },
      clickOutListener: function clickOutListener() {
        this.visible = false;
      },
      show: function show() {
        // Public method to show dropdown
        if (this.disabled) {
          return;
        }
        this.visible = true;
      },
      hide: function hide() {
        // Public method to hide dropdown
        if (this.disabled) {
          return;
        }
        this.visible = false;
      },
      toggle: function toggle(evt) {
        // Called only by a button that toggles the menu
        evt = evt || {};
        var type = evt.type;
        var key = evt.keyCode;
        if (type !== 'click' && !(type === 'keydown' && (key === KeyCodes.ENTER || key === KeyCodes.SPACE || key === KeyCodes.DOWN))) {
          // We only toggle on Click, Enter, Space, and Arrow Down
          return;
        }
        if (this.disabled) {
          this.visible = false;
          return;
        }
        this.$emit('toggle', evt);
        if (evt.defaultPrevented) {
          // Exit if canceled
          return;
        }
        evt.preventDefault();
        evt.stopPropagation();
        // Toggle visibility
        this.visible = !this.visible;
      },
      click: function click(evt) {
        // Calle only in split button mode, for the split button
        if (this.disabled) {
          this.visible = false;
          return;
        }
        this.$emit('click', evt);
      },

      /* istanbul ignore next: not easy to test */
      onKeydown: function onKeydown(evt) {
        // Called from dropdown menu context
        var key = evt.keyCode;
        if (key === KeyCodes.ESC) {
          // Close on ESC
          this.onEsc(evt);
        } else if (key === KeyCodes.TAB) {
          // Close on tab out
          this.onTab(evt);
        } else if (key === KeyCodes.DOWN) {
          // Down Arrow
          this.focusNext(evt, false);
        } else if (key === KeyCodes.UP) {
          // Up Arrow
          this.focusNext(evt, true);
        }
      },

      /* istanbul ignore next: not easy to test */
      onEsc: function onEsc(evt) {
        if (this.visible) {
          this.visible = false;
          evt.preventDefault();
          evt.stopPropagation();
          // Return focus to original trigger button
          this.$nextTick(this.focusToggler);
        }
      },

      /* istanbul ignore next: not easy to test */
      onTab: function onTab(evt) {
        if (this.visible) {
          // TODO: Need special handler for dealing with form inputs
          // Tab, if in a text-like input, we should just focus next item in the dropdown
          // Note: Inputs are in a special .dropdown-form container
          this.visible = false;
        }
      },
      onFocusOut: function onFocusOut(evt) {
        if (this.$refs.menu.contains(evt.relatedTarget)) {
          return;
        }
        this.visible = false;
      },

      /* istanbul ignore next: not easy to test */
      onMouseOver: function onMouseOver(evt) {
        // Focus the item on hover
        // TODO: Special handling for inputs? Inputs are in a special .dropdown-form container
        var item = evt.target;
        if (item.classList.contains('dropdown-item') && !item.disabled && !item.classList.contains('disabled') && item.focus) {
          item.focus();
        }
      },
      focusNext: function focusNext(evt, up) {
        var _this2 = this;

        if (!this.visible) {
          return;
        }
        evt.preventDefault();
        evt.stopPropagation();
        this.$nextTick(function () {
          var items = _this2.getItems();
          if (items.length < 1) {
            return;
          }
          var index = items.indexOf(evt.target);
          if (up && index > 0) {
            index--;
          } else if (!up && index < items.length - 1) {
            index++;
          }
          if (index < 0) {
            index = 0;
          }
          _this2.focusItem(index, items);
        });
      },
      focusItem: function focusItem(idx, items) {
        var el = items.find(function (el, i) {
          return i === idx;
        });
        if (el && getAttr(el, 'tabindex') !== '-1') {
          el.focus();
        }
      },
      getItems: function getItems() {
        // Get all items
        return filterVisible(selectAll(ITEM_SELECTOR$1, this.$refs.menu));
      },
      getFirstItem: function getFirstItem() {
        // Get the first non-disabled item
        var item = this.getItems()[0];
        return item || null;
      },
      focusFirstItem: function focusFirstItem() {
        var item = this.getFirstItem();
        if (item) {
          this.focusItem(0, [item]);
        }
      },
      focusToggler: function focusToggler() {
        var toggler = this.toggler;
        if (toggler && toggler.focus) {
          toggler.focus();
        }
      }
    }
  };

  var bDropdown = {
    mixins: [idMixin, dropdownMixin],
    components: { bButton: bBtn },
    render: function render(h) {
      var split = h(false);
      if (this.split) {
        split = h('b-button', {
          ref: 'button',
          props: {
            disabled: this.disabled,
            variant: this.variant,
            size: this.size
          },
          attrs: {
            id: this.safeId('_BV_button_')
          },
          on: {
            click: this.click
          }
        }, [this.$slots['button-content'] || this.$slots.text || this.text]);
      }
      var toggle = h('b-button', {
        ref: 'toggle',
        class: this.toggleClasses,
        props: {
          variant: this.variant,
          size: this.size,
          disabled: this.disabled
        },
        attrs: {
          id: this.safeId('_BV_toggle_'),
          'aria-haspopup': 'true',
          'aria-expanded': this.visible ? 'true' : 'false'
        },
        on: {
          click: this.toggle, // click
          keydown: this.toggle // enter, space, down
        }
      }, [this.split ? h('span', { class: ['sr-only'] }, [this.toggleText]) : this.$slots['button-content'] || this.$slots.text || this.text]);
      var menu = h('div', {
        ref: 'menu',
        class: this.menuClasses,
        attrs: {
          role: this.role,
          'aria-labelledby': this.safeId(this.split ? '_BV_button_' : '_BV_toggle_')
        },
        on: {
          mouseover: this.onMouseOver,
          keydown: this.onKeydown // tab, up, down, esc
        }
      }, [this.$slots.default]);
      return h('div', { attrs: { id: this.safeId() }, class: this.dropdownClasses }, [split, toggle, menu]);
    },

    props: {
      split: {
        type: Boolean,
        default: false
      },
      toggleText: {
        type: String,
        default: 'Toggle Dropdown'
      },
      size: {
        type: String,
        default: null
      },
      variant: {
        type: String,
        default: null
      },
      menuClass: {
        type: [String, Array],
        default: null
      },
      toggleClass: {
        type: [String, Array],
        default: null
      },
      noCaret: {
        type: Boolean,
        default: false
      },
      role: {
        type: String,
        default: 'menu'
      },
      boundary: {
        // String: `scrollParent`, `window` or `viewport`
        // Object: HTML Element reference
        type: [String, Object],
        default: 'scrollParent'
      }
    },
    computed: {
      dropdownClasses: function dropdownClasses() {
        var position = '';
        // Position `static` is needed to allow menu to "breakout" of the scrollParent boundaries
        // when boundary is anything other than `scrollParent`
        // See https://github.com/twbs/bootstrap/issues/24251#issuecomment-341413786
        if (this.boundary !== 'scrollParent' || !this.boundary) {
          position = 'position-static';
        }
        return ['btn-group', 'b-dropdown', 'dropdown', this.dropup ? 'dropup' : '', this.visible ? 'show' : '', position];
      },
      menuClasses: function menuClasses() {
        return ['dropdown-menu', {
          'dropdown-menu-right': this.right,
          'show': this.visible
        }, this.menuClass];
      },
      toggleClasses: function toggleClasses() {
        return [{
          'dropdown-toggle': !this.noCaret || this.split,
          'dropdown-toggle-split': this.split
        }, this.toggleClass];
      }
    }
  };

  var props$l = propsFactory();

  var bDropdownItem = {
    functional: true,
    props: props$l,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(bLink, mergeData(data, {
        props: props,
        staticClass: 'dropdown-item',
        attrs: { role: 'menuitem' }
      }), children);
    }
  };

  var props$m = {
    disabled: {
      type: Boolean,
      default: false
    }
  };

  var bDropdownItemButton = {
    functional: true,
    props: props$m,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          parent = _ref.parent,
          children = _ref.children;

      return h('button', mergeData(data, {
        props: props,
        staticClass: 'dropdown-item',
        attrs: { role: 'menuitem', type: 'button', disabled: props.disabled },
        on: {
          click: function click(e) {
            parent.$root.$emit('clicked::link', e);
          }
        }
      }), children);
    }
  };

  var props$n = {
    id: {
      type: String,
      default: null
    },
    tag: {
      type: String,
      default: 'h6'
    }
  };

  var bDropdownHeader = {
    functional: true,
    props: props$n,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'dropdown-header',
        attrs: { id: props.id || null }
      }), children);
    }
  };

  var props$o = {
    tag: {
      type: String,
      default: 'div'
    }
  };

  var bDropdownDivider = {
    functional: true,
    props: props$o,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data;

      return h(props.tag, mergeData(data, {
        staticClass: 'dropdown-divider',
        attrs: { role: 'separator' }
      }));
    }
  };

  var components$b = {
    bDropdown: bDropdown,
    bDd: bDropdown,
    bDropdownItem: bDropdownItem,
    bDdItem: bDropdownItem,
    bDropdownItemButton: bDropdownItemButton,
    bDropdownItemBtn: bDropdownItemButton,
    bDdItemButton: bDropdownItemButton,
    bDdItemBtn: bDropdownItemButton,
    bDropdownHeader: bDropdownHeader,
    bDdHeader: bDropdownHeader,
    bDropdownDivider: bDropdownDivider,
    bDdDivider: bDropdownDivider
  };

  var VuePlugin$c = {
    install: function install(Vue) {
      registerComponents(Vue, components$b);
    }
  };

  vueUse(VuePlugin$c);

  var props$p = {
    type: {
      type: String,
      default: 'iframe',
      validator: function validator(str) {
        return arrayIncludes(['iframe', 'embed', 'video', 'object', 'img', 'b-img', 'b-img-lazy'], str);
      }
    },
    tag: {
      type: String,
      default: 'div'
    },
    aspect: {
      type: String,
      default: '16by9'
    }
  };

  var bEmbed = {
    functional: true,
    props: props$p,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, {
        ref: data.ref,
        staticClass: 'embed-responsive',
        class: defineProperty({}, 'embed-responsive-' + props.aspect, Boolean(props.aspect))
      }, [h(props.type, mergeData(data, { ref: '', staticClass: 'embed-responsive-item' }), children)]);
    }
  };

  var components$c = {
    bEmbed: bEmbed
  };

  var VuePlugin$d = {
    install: function install(Vue) {
      registerComponents(Vue, components$c);
    }
  };

  vueUse(VuePlugin$d);

  var props$q = {
    id: {
      type: String,
      default: null
    },
    inline: {
      type: Boolean,
      default: false
    },
    novalidate: {
      type: Boolean,
      default: false
    },
    validated: {
      type: Boolean,
      default: false
    }
  };

  var Form = {
    functional: true,
    props: props$q,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h('form', mergeData(data, {
        class: {
          'form-inline': props.inline,
          'was-validated': props.validated
        },
        attrs: {
          id: props.id,
          novalidate: props.novalidate
        }
      }), children);
    }
  };

  var props$r = {
    id: {
      type: String,
      default: null
    },
    tag: {
      type: String,
      default: 'small'
    },
    textVariant: {
      type: String,
      default: 'muted'
    },
    inline: {
      type: Boolean,
      default: false
    }
  };

  var bFormText = {
    functional: true,
    props: props$r,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        class: defineProperty({
          'form-text': !props.inline
        }, 'text-' + props.textVariant, Boolean(props.textVariant)),
        attrs: {
          id: props.id
        }
      }), children);
    }
  };

  var props$s = {
    id: {
      type: String,
      default: null
    },
    tag: {
      type: String,
      default: 'div'
    },
    forceShow: {
      type: Boolean,
      default: false
    }
  };

  var bFormInvalidFeedback = {
    functional: true,
    props: props$s,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'invalid-feedback',
        class: { 'd-block': props.forceShow },
        attrs: { id: props.id }
      }), children);
    }
  };

  var props$t = {
    id: {
      type: String,
      default: null
    },
    tag: {
      type: String,
      default: 'div'
    },
    forceShow: {
      type: Boolean,
      default: false
    }
  };

  var bFormValidFeedback = {
    functional: true,
    props: props$t,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'valid-feedback',
        class: { 'd-block': props.forceShow },
        attrs: { id: props.id }
      }), children);
    }
  };

  var components$d = {
    bForm: Form,
    bFormRow: bFormRow,
    bFormText: bFormText,
    bFormInvalidFeedback: bFormInvalidFeedback,
    bFormFeedback: bFormInvalidFeedback,
    bFormValidFeedback: bFormValidFeedback
  };

  var VuePlugin$e = {
    install: function install(Vue) {
      registerComponents(Vue, components$d);
    }
  };

  vueUse(VuePlugin$e);

  /* Form control contextual state class computation
   *
   * Returned class is either 'is-valid' or 'is-invalid' based on the 'state' prop
   * state can be one of five values:
   *  - true or 'valid' for is-valid
   *  - false or 'invalid' for is-invalid
   *  - null (or empty string) for no contextual state
   */

  var formStateMixin = {
    props: {
      state: {
        // true/'valid', false/'invalid', '',null
        type: [Boolean, String],
        default: null
      }
    },
    computed: {
      computedState: function computedState() {
        var state = this.state;
        if (state === true || state === 'valid') {
          return true;
        } else if (state === false || state === 'invalid') {
          return false;
        }
        return null;
      },
      stateClass: function stateClass() {
        var state = this.computedState;
        if (state === true) {
          return 'is-valid';
        } else if (state === false) {
          return 'is-invalid';
        }
        return null;
      }
    }
  };

  // Selector for finding firt input in the form-group
  var SELECTOR = 'input:not(:disabled),textarea:not(:disabled),select:not(:disabled)';

  var bFormGroup = {
    mixins: [idMixin, formStateMixin],
    components: { bFormRow: bFormRow, bFormText: bFormText, bFormInvalidFeedback: bFormInvalidFeedback, bFormValidFeedback: bFormValidFeedback },
    render: function render(h) {
      var $slots = this.$slots;

      // Label / Legend
      var legend = h(false);
      if (this.hasLabel) {
        var children = $slots['label'];
        var legendTag = this.labelFor ? 'label' : 'legend';
        var legendDomProps = children ? {} : { innerHTML: this.label };
        var legendAttrs = { id: this.labelId, for: this.labelFor || null };
        var legendClick = this.labelFor || this.labelSrOnly ? {} : { click: this.legendClick };
        if (this.horizontal) {
          // Horizontal layout with label
          if (this.labelSrOnly) {
            // SR Only we wrap label/legend in a div to preserve layout
            children = h(legendTag, { class: ['sr-only'], attrs: legendAttrs, domProps: legendDomProps }, children);
            legend = h('div', { class: this.labelLayoutClasses }, [children]);
          } else {
            legend = h(legendTag, {
              class: [this.labelLayoutClasses, this.labelClasses],
              attrs: legendAttrs,
              domProps: legendDomProps,
              on: legendClick
            }, children);
          }
        } else {
          // Vertical layout with label
          legend = h(legendTag, {
            class: this.labelSrOnly ? ['sr-only'] : this.labelClasses,
            attrs: legendAttrs,
            domProps: legendDomProps,
            on: legendClick
          }, children);
        }
      } else if (this.horizontal) {
        // No label but has horizontal layout, so we need a spacer element for layout
        legend = h('div', { class: this.labelLayoutClasses });
      }

      // Invalid feeback text (explicitly hidden if state is valid)
      var invalidFeedback = h(false);
      if (this.hasInvalidFeedback) {
        var domProps = {};
        if (!$slots['invalid-feedback'] && !$slots['feedback']) {
          domProps = { innerHTML: this.invalidFeedback || this.feedback || '' };
        }
        invalidFeedback = h('b-form-invalid-feedback', {
          props: {
            id: this.invalidFeedbackId,
            forceShow: this.computedState === false
          },
          attrs: {
            role: 'alert',
            'aria-live': 'assertive',
            'aria-atomic': 'true'
          },
          domProps: domProps
        }, $slots['invalid-feedback'] || $slots['feedback']);
      }

      // Valid feeback text (explicitly hidden if state is invalid)
      var validFeedback = h(false);
      if (this.hasValidFeedback) {
        var _domProps = $slots['valid-feedback'] ? {} : { innerHTML: this.validFeedback || '' };
        validFeedback = h('b-form-valid-feedback', {
          props: {
            id: this.validFeedbackId,
            forceShow: this.computedState === true
          },
          attrs: {
            role: 'alert',
            'aria-live': 'assertive',
            'aria-atomic': 'true'
          },
          domProps: _domProps
        }, $slots['valid-feedback']);
      }

      // Form help text (description)
      var description = h(false);
      if (this.hasDescription) {
        var _domProps2 = $slots['description'] ? {} : { innerHTML: this.description || '' };
        description = h('b-form-text', { attrs: { id: this.descriptionId }, domProps: _domProps2 }, $slots['description']);
      }

      // Build content layout
      var content = h('div', {
        ref: 'content',
        class: this.inputLayoutClasses,
        attrs: this.labelFor ? {} : { role: 'group', 'aria-labelledby': this.labelId }
      }, [$slots['default'], invalidFeedback, validFeedback, description]);

      // Generate main form-group wrapper
      return h(this.labelFor ? 'div' : 'fieldset', {
        class: this.groupClasses,
        attrs: {
          id: this.safeId(),
          disabled: this.disabled,
          role: 'group',
          'aria-invalid': this.computedState === false ? 'true' : null,
          'aria-labelledby': this.labelId,
          'aria-describedby': this.labelFor ? null : this.describedByIds
        }
      }, this.horizontal ? [h('b-form-row', {}, [legend, content])] : [legend, content]);
    },

    props: {
      horizontal: {
        type: Boolean,
        default: false
      },
      labelCols: {
        type: [Number, String],
        default: 3,
        validator: function validator(value) {
          if (Number(value) >= 1 && Number(value) <= 11) {
            return true;
          }
          warn('b-form-group: label-cols must be a value between 1 and 11');
          return false;
        }
      },
      breakpoint: {
        type: String,
        default: 'sm'
      },
      labelTextAlign: {
        type: String,
        default: null
      },
      label: {
        type: String,
        default: null
      },
      labelFor: {
        type: String,
        default: null
      },
      labelSize: {
        type: String,
        default: null
      },
      labelSrOnly: {
        type: Boolean,
        default: false
      },
      labelClass: {
        type: [String, Array],
        default: null
      },
      description: {
        type: String,
        default: null
      },
      invalidFeedback: {
        type: String,
        default: null
      },
      feedback: {
        // Deprecated in favor of invalid-feedback
        type: String,
        default: null
      },
      validFeedback: {
        type: String,
        default: null
      },
      validated: {
        type: Boolean,
        default: false
      }
    },
    computed: {
      groupClasses: function groupClasses() {
        return ['b-form-group', 'form-group', this.validated ? 'was-validated' : null, this.stateClass];
      },
      labelClasses: function labelClasses() {
        return ['col-form-label', this.labelSize ? 'col-form-label-' + this.labelSize : null, this.labelTextAlign ? 'text-' + this.labelTextAlign : null, this.horizontal ? null : 'pt-0', this.labelClass];
      },
      labelLayoutClasses: function labelLayoutClasses() {
        return [this.horizontal ? 'col-' + this.breakpoint + '-' + this.labelCols : null];
      },
      inputLayoutClasses: function inputLayoutClasses() {
        return [this.horizontal ? 'col-' + this.breakpoint + '-' + (12 - Number(this.labelCols)) : null];
      },
      hasLabel: function hasLabel() {
        return this.label || this.$slots['label'];
      },
      hasDescription: function hasDescription() {
        return this.description || this.$slots['description'];
      },
      hasInvalidFeedback: function hasInvalidFeedback() {
        if (this.computedState === true) {
          // If the form-group state is explicityly valid, we return false
          return false;
        }
        return this.invalidFeedback || this.feedback || this.$slots['invalid-feedback'] || this.$slots['feedback'];
      },
      hasValidFeedback: function hasValidFeedback() {
        if (this.computedState === false) {
          // If the form-group state is explicityly invalid, we return false
          return false;
        }
        return this.validFeedback || this.$slots['valid-feedback'];
      },
      labelId: function labelId() {
        return this.hasLabel ? this.safeId('_BV_label_') : null;
      },
      descriptionId: function descriptionId() {
        return this.hasDescription ? this.safeId('_BV_description_') : null;
      },
      invalidFeedbackId: function invalidFeedbackId() {
        return this.hasInvalidFeedback ? this.safeId('_BV_feedback_invalid_') : null;
      },
      validFeedbackId: function validFeedbackId() {
        return this.hasValidFeedback ? this.safeId('_BV_feedback_valid_') : null;
      },
      describedByIds: function describedByIds() {
        return [this.descriptionId, this.invalidFeedbackId, this.validFeedbackId].filter(function (i) {
          return i;
        }).join(' ') || null;
      }
    },
    watch: {
      describedByIds: function describedByIds(add, remove) {
        if (add !== remove) {
          this.setInputDescribedBy(add, remove);
        }
      }
    },
    methods: {
      legendClick: function legendClick(evt) {
        var tagName = evt.target ? evt.target.tagName : '';
        if (/^(input|select|textarea|label)$/i.test(tagName)) {
          // If clicked an input inside legend, we just let the default happen
          return;
        }
        // Focus the first non-disabled visible input when the legend element is clicked
        var inputs = selectAll(SELECTOR, this.$refs.content).filter(isVisible);
        if (inputs[0] && inputs[0].focus) {
          inputs[0].focus();
        }
      },
      setInputDescribedBy: function setInputDescribedBy(add, remove) {
        // Sets the `aria-describedby` attribute on the input if label-for is set.
        // Optionally accepts a string of IDs to remove as the second parameter
        if (this.labelFor && typeof document !== 'undefined') {
          var input = select('#' + this.labelFor, this.$refs.content);
          if (input) {
            var adb = 'aria-describedby';
            var ids = (getAttr(input, adb) || '').split(/\s+/);
            remove = (remove || '').split(/\s+/);
            // Update ID list, preserving any original IDs
            ids = ids.filter(function (id) {
              return remove.indexOf(id) === -1;
            }).concat(add || '').join(' ').trim();
            if (ids) {
              setAttr(input, adb, ids);
            } else {
              removeAttr(input, adb);
            }
          }
        }
      }
    },
    mounted: function mounted() {
      var _this = this;

      this.$nextTick(function () {
        // Set the adia-describedby IDs on the input specified by label-for
        // We do this in a nextTick to ensure the children have finished rendering
        _this.setInputDescribedBy(_this.describedByIds);
      });
    }
  };

  var components$e = {
    bFormGroup: bFormGroup,
    bFormFieldset: bFormGroup
  };

  var VuePlugin$f = {
    install: function install(Vue) {
      registerComponents(Vue, components$e);
    }
  };

  vueUse(VuePlugin$f);

  /*
   * form-radio & form-check mixin
   *
   */

  var formRadioCheckMixin = {
    data: function data() {
      return {
        localChecked: this.checked,
        hasFocus: false
      };
    },

    model: {
      prop: 'checked',
      event: 'input'
    },
    props: {
      value: {},
      checked: {
        // This is the model, except when in group mode
      },
      buttonVariant: {
        // Only applicable when rendered with button style
        type: String,
        default: null
      }
    },
    computed: {
      computedLocalChecked: {
        get: function get() {
          if (this.is_Child) {
            return this.$parent.localChecked;
          } else {
            return this.localChecked;
          }
        },
        set: function set(val) {
          if (this.is_Child) {
            this.$parent.localChecked = val;
          } else {
            this.localChecked = val;
          }
        }
      },
      is_Child: function is_Child() {
        return Boolean(this.$parent && this.$parent.is_RadioCheckGroup);
      },
      is_Disabled: function is_Disabled() {
        // Child can be disabled while parent isn't
        return Boolean(this.is_Child ? this.$parent.disabled || this.disabled : this.disabled);
      },
      is_Required: function is_Required() {
        return Boolean(this.is_Child ? this.$parent.required : this.required);
      },
      is_Plain: function is_Plain() {
        return Boolean(this.is_Child ? this.$parent.plain : this.plain);
      },
      is_Custom: function is_Custom() {
        return !this.is_Plain;
      },
      get_Size: function get_Size() {
        return this.is_Child ? this.$parent.size : this.size;
      },
      get_State: function get_State() {
        // This is a tri-state prop (true, false, null)
        if (this.is_Child && typeof this.$parent.get_State === 'boolean') {
          return this.$parent.get_State;
        }
        return this.computedState;
      },
      get_StateClass: function get_StateClass() {
        // This is a tri-state prop (true, false, null)
        return typeof this.get_State === 'boolean' ? this.get_State ? 'is-valid' : 'is-invalid' : '';
      },
      is_Stacked: function is_Stacked() {
        return Boolean(this.is_Child && this.$parent.stacked);
      },
      is_Inline: function is_Inline() {
        return !this.is_Stacked;
      },
      is_ButtonMode: function is_ButtonMode() {
        return Boolean(this.is_Child && this.$parent.buttons);
      },
      get_ButtonVariant: function get_ButtonVariant() {
        // Local variant trumps parent variant
        return this.buttonVariant || (this.is_Child ? this.$parent.buttonVariant : null) || 'secondary';
      },
      get_Name: function get_Name() {
        return (this.is_Child ? this.$parent.name || this.$parent.safeId() : this.name) || null;
      },
      buttonClasses: function buttonClasses() {
        // Same for radio & check
        return ['btn', 'btn-' + this.get_ButtonVariant, this.get_Size ? 'btn-' + this.get_Size : '',
        // 'disabled' class makes "button" look disabled
        this.is_Disabled ? 'disabled' : '',
        // 'active' class makes "button" look pressed
        this.is_Checked ? 'active' : '',
        // Focus class makes button look focused
        this.hasFocus ? 'focus' : ''];
      }
    },
    methods: {
      handleFocus: function handleFocus(evt) {
        // When in buttons mode, we need to add 'focus' class to label when radio focused
        if (this.is_ButtonMode && evt.target) {
          if (evt.type === 'focus') {
            this.hasFocus = true;
          } else if (evt.type === 'blur') {
            this.hasFocus = false;
          }
        }
      }
    }
  };

  var formMixin = {
    props: {
      name: {
        type: String
      },
      id: {
        type: String
      },
      disabled: {
        type: Boolean
      },
      required: {
        type: Boolean,
        default: false
      }
    }
  };

  var formSizeMixin = {
    props: {
      size: {
        type: String,
        default: null
      }
    },
    computed: {
      sizeFormClass: function sizeFormClass() {
        return [this.size ? "form-control-" + this.size : null];
      },
      sizeBtnClass: function sizeBtnClass() {
        return [this.size ? "btn-" + this.size : null];
      }
    }
  };

  var formCustomMixin = {
    computed: {
      custom: function custom() {
        return !this.plain;
      }
    },
    props: {
      plain: {
        type: Boolean,
        default: false
      }
    }
  };

  /**
   * Quick object check - this is primarily used to tell
   * Objects from primitive values when we know the value
   * is a JSON-compliant type.
   */
  function isObject(obj) {
    return obj !== null && (typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object';
  }

  /**
   * Check if two values are loosely equal - that is,
   * if they are plain objects, do they have the same shape?
   * Returns boolean true or false
   */
  function looseEqual(a, b) {
    if (a === b) return true;
    var isObjectA = isObject(a);
    var isObjectB = isObject(b);
    if (isObjectA && isObjectB) {
      try {
        var isArrayA = isArray(a);
        var isArrayB = isArray(b);
        if (isArrayA && isArrayB) {
          return a.length === b.length && a.every(function (e, i) {
            return looseEqual(e, b[i]);
          });
        } else if (!isArrayA && !isArrayB) {
          var keysA = keys(a);
          var keysB = keys(b);
          return keysA.length === keysB.length && keysA.every(function (key) {
            return looseEqual(a[key], b[key]);
          });
        } else {
          return false;
        }
      } catch (e) {
        return false;
      }
    } else if (!isObjectA && !isObjectB) {
      return String(a) === String(b);
    } else {
      return false;
    }
  }

  var bFormCheckbox = {
    mixins: [idMixin, formRadioCheckMixin, formMixin, formSizeMixin, formStateMixin, formCustomMixin],
    render: function render(h) {
      var _this = this;

      var input = h('input', {
        ref: 'check',
        class: [this.is_ButtonMode ? '' : this.is_Plain ? 'form-check-input' : 'custom-control-input', this.get_StateClass],
        directives: [{
          name: 'model',
          rawName: 'v-model',
          value: this.computedLocalChecked,
          expression: 'computedLocalChecked'
        }],
        attrs: {
          id: this.safeId(),
          type: 'checkbox',
          name: this.get_Name,
          disabled: this.is_Disabled,
          required: this.is_Required,
          autocomplete: 'off',
          'true-value': this.value,
          'false-value': this.uncheckedValue,
          'aria-required': this.is_Required ? 'true' : null
        },
        domProps: { value: this.value, checked: this.is_Checked },
        on: {
          focus: this.handleFocus,
          blur: this.handleFocus,
          change: this.emitChange,
          __c: function __c(evt) {
            var $$a = _this.computedLocalChecked;
            var $$el = evt.target;
            if (isArray($$a)) {
              // Multiple checkbox
              var $$v = _this.value;
              var $$i = _this._i($$a, $$v); // Vue's 'loose' Array.indexOf
              if ($$el.checked) {
                // Append value to array
                $$i < 0 && (_this.computedLocalChecked = $$a.concat([$$v]));
              } else {
                // Remove value from array
                $$i > -1 && (_this.computedLocalChecked = $$a.slice(0, $$i).concat($$a.slice($$i + 1)));
              }
            } else {
              // Single checkbox
              _this.computedLocalChecked = $$el.checked ? _this.value : _this.uncheckedValue;
            }
          }
        }
      });

      var description = h(this.is_ButtonMode ? 'span' : 'label', {
        class: this.is_ButtonMode ? null : this.is_Plain ? 'form-check-label' : 'custom-control-label',
        attrs: { for: this.is_ButtonMode ? null : this.safeId() }
      }, [this.$slots.default]);

      if (!this.is_ButtonMode) {
        return h('div', {
          class: [this.is_Plain ? 'form-check' : this.labelClasses, { 'form-check-inline': this.is_Plain && !this.is_Stacked }, { 'custom-control-inline': !this.is_Plain && !this.is_Stacked }]
        }, [input, description]);
      } else {
        return h('label', { class: [this.buttonClasses] }, [input, description]);
      }
    },

    props: {
      value: {
        default: true
      },
      uncheckedValue: {
        // Not applicable in multi-check mode
        default: false
      },
      indeterminate: {
        // Not applicable in multi-check mode
        type: Boolean,
        default: false
      }
    },
    computed: {
      labelClasses: function labelClasses() {
        return ['custom-control', 'custom-checkbox', this.get_Size ? 'form-control-' + this.get_Size : '', this.get_StateClass];
      },
      is_Checked: function is_Checked() {
        var checked = this.computedLocalChecked;
        if (isArray(checked)) {
          for (var i = 0; i < checked.length; i++) {
            if (looseEqual(checked[i], this.value)) {
              return true;
            }
          }
          return false;
        } else {
          return looseEqual(checked, this.value);
        }
      }
    },
    watch: {
      computedLocalChecked: function computedLocalChecked(newVal, oldVal) {
        if (looseEqual(newVal, oldVal)) {
          return;
        }
        this.$emit('input', newVal);
        this.$emit('update:indeterminate', this.$refs.check.indeterminate);
      },
      checked: function checked(newVal, oldVal) {
        if (this.is_Child || looseEqual(newVal, oldVal)) {
          return;
        }
        this.computedLocalChecked = newVal;
      },
      indeterminate: function indeterminate(newVal, oldVal) {
        this.setIndeterminate(newVal);
      }
    },
    methods: {
      emitChange: function emitChange(_ref) {
        var checked = _ref.target.checked;

        // Change event is only fired via user interaction
        // And we only emit the value of this checkbox
        if (this.is_Child || isArray(this.computedLocalChecked)) {
          this.$emit('change', checked ? this.value : null);
          if (this.is_Child) {
            // If we are a child of form-checkbbox-group, emit change on parent
            this.$parent.$emit('change', this.computedLocalChecked);
          }
        } else {
          // Single radio mode supports unchecked value
          this.$emit('change', checked ? this.value : this.uncheckedValue);
        }
        this.$emit('update:indeterminate', this.$refs.check.indeterminate);
      },
      setIndeterminate: function setIndeterminate(state) {
        // Indeterminate only supported in single checkbox mode
        if (this.is_Child || isArray(this.computedLocalChecked)) {
          return;
        }
        this.$refs.check.indeterminate = state;
        // Emit update event to prop
        this.$emit('update:indeterminate', this.$refs.check.indeterminate);
      }
    },
    mounted: function mounted() {
      // Set initial indeterminate state
      this.setIndeterminate(this.indeterminate);
    }
  };

  function isObject$1(obj) {
    return obj && {}.toString.call(obj) === '[object Object]';
  }

  var formOptionsMixin = {

    props: {
      options: {
        type: [Array, Object],
        default: function _default() {
          return [];
        }
      },
      valueField: {
        type: String,
        default: 'value'
      },
      textField: {
        type: String,
        default: 'text'
      },
      disabledField: {
        type: String,
        default: 'disabled'
      }
    },
    computed: {
      formOptions: function formOptions() {
        var options = this.options;

        var valueField = this.valueField;
        var textField = this.textField;
        var disabledField = this.disabledField;

        if (isArray(options)) {
          // Normalize flat-ish arrays to Array of Objects
          return options.map(function (option) {
            if (isObject$1(option)) {
              return {
                value: option[valueField],
                text: String(option[textField]),
                disabled: option[disabledField] || false
              };
            }
            return {
              value: option,
              text: String(option),
              disabled: false
            };
          });
        } else {
          // options is Object
          // Normalize Objects to Array of Objects
          return keys(options).map(function (key) {
            var option = options[key] || {};
            if (isObject$1(option)) {
              var value = option[valueField];
              var text = option[textField];
              return {
                value: typeof value === 'undefined' ? key : value,
                text: typeof text === 'undefined' ? key : String(text),
                disabled: option[disabledField] || false
              };
            }
            return {
              value: key,
              text: String(option),
              disabled: false
            };
          });
        }
      }
    }
  };

  var bFormCheckboxGroup = {
    mixins: [idMixin, formMixin, formSizeMixin, formStateMixin, formCustomMixin, formOptionsMixin],
    components: { bFormCheckbox: bFormCheckbox },
    render: function render(h) {
      var _this = this;

      var $slots = this.$slots;

      var checks = this.formOptions.map(function (option, idx) {
        return h('b-form-checkbox', {
          key: 'check_' + idx + '_opt',
          props: {
            id: _this.safeId('_BV_check_' + idx + '_opt_'),
            name: _this.name,
            value: option.value,
            required: _this.name && _this.required,
            disabled: option.disabled
          }
        }, [h('span', { domProps: { innerHTML: option.text } })]);
      });
      return h('div', {
        class: this.groupClasses,
        attrs: {
          id: this.safeId(),
          role: 'group',
          tabindex: '-1',
          'aria-required': this.required ? 'true' : null,
          'aria-invalid': this.computedAriaInvalid
        }
      }, [$slots.first, checks, $slots.default]);
    },
    data: function data() {
      return {
        localChecked: this.checked || [],
        // Flag for children
        is_RadioCheckGroup: true
      };
    },

    model: {
      prop: 'checked',
      event: 'input'
    },
    props: {
      checked: {
        type: [String, Number, Object, Array, Boolean],
        default: null
      },
      validated: {
        type: Boolean,
        default: false
      },
      ariaInvalid: {
        type: [Boolean, String],
        default: false
      },
      stacked: {
        type: Boolean,
        default: false
      },
      buttons: {
        // Render as button style
        type: Boolean,
        default: false
      },
      buttonVariant: {
        // Only applicable when rendered with button style
        type: String,
        default: 'secondary'
      }
    },
    watch: {
      checked: function checked(newVal, oldVal) {
        this.localChecked = this.checked;
      },
      localChecked: function localChecked(newVal, oldVal) {
        this.$emit('input', newVal);
      }
    },
    computed: {
      groupClasses: function groupClasses() {
        if (this.buttons) {
          return ['btn-group-toggle', this.stacked ? 'btn-group-vertical' : 'btn-group', this.size ? 'btn-group-' + this.size : '', this.validated ? 'was-validated' : ''];
        }
        return [this.sizeFormClass, this.stacked && this.custom ? 'custom-controls-stacked' : '', this.validated ? 'was-validated' : ''];
      },
      computedAriaInvalid: function computedAriaInvalid() {
        if (this.ariaInvalid === true || this.ariaInvalid === 'true' || this.ariaInvalid === '') {
          return 'true';
        }
        return this.get_State === false ? 'true' : null;
      },
      get_State: function get_State() {
        // Child radios sniff this value
        return this.computedState;
      }
    }
  };

  var components$f = {
    bFormCheckbox: bFormCheckbox,
    bCheckbox: bFormCheckbox,
    bCheck: bFormCheckbox,
    bFormCheckboxGroup: bFormCheckboxGroup,
    bCheckboxGroup: bFormCheckboxGroup,
    bCheckGroup: bFormCheckboxGroup
  };

  var VuePlugin$g = {
    install: function install(Vue) {
      registerComponents(Vue, components$f);
    }
  };

  vueUse(VuePlugin$g);

  var bFormRadio = {
    mixins: [idMixin, formRadioCheckMixin, formMixin, formStateMixin],
    render: function render(h) {
      var _this = this;

      var input = h('input', {
        ref: 'radio',
        class: [this.is_ButtonMode ? '' : this.is_Plain ? 'form-check-input' : 'custom-control-input', this.get_StateClass],
        directives: [{
          name: 'model',
          rawName: 'v-model',
          value: this.computedLocalChecked,
          expression: 'computedLocalChecked'
        }],
        attrs: {
          id: this.safeId(),
          type: 'radio',
          name: this.get_Name,
          required: this.get_Name && this.is_Required,
          disabled: this.is_Disabled,
          autocomplete: 'off'
        },
        domProps: {
          value: this.value,
          checked: looseEqual(this.computedLocalChecked, this.value)
        },
        on: {
          focus: this.handleFocus,
          blur: this.handleFocus,
          change: this.emitChange,
          __c: function __c(evt) {
            _this.computedLocalChecked = _this.value;
          }
        }
      });

      var description = h(this.is_ButtonMode ? 'span' : 'label', {
        class: this.is_ButtonMode ? null : this.is_Plain ? 'form-check-label' : 'custom-control-label',
        attrs: { for: this.is_ButtonMode ? null : this.safeId() }
      }, [this.$slots.default]);

      if (!this.is_ButtonMode) {
        return h('div', {
          class: [this.is_Plain ? 'form-check' : this.labelClasses, { 'form-check-inline': this.is_Plain && !this.is_Stacked }, { 'custom-control-inline': !this.is_Plain && !this.is_Stacked }]
        }, [input, description]);
      } else {
        return h('label', { class: [this.buttonClasses] }, [input, description]);
      }
    },

    watch: {
      // Radio Groups can only have a single value, so our watchers are simple
      checked: function checked(newVal, oldVal) {
        this.computedLocalChecked = newVal;
      },
      computedLocalChceked: function computedLocalChceked(newVal, oldVal) {
        this.$emit('input', this.computedLocalChceked);
      }
    },
    computed: {
      is_Checked: function is_Checked() {
        return looseEqual(this.value, this.computedLocalChecked);
      },
      labelClasses: function labelClasses() {
        // Specific to radio
        return [this.get_Size ? 'form-control-' + this.get_Size : '', 'custom-control', 'custom-radio', this.get_StateClass];
      }
    },
    methods: {
      emitChange: function emitChange(_ref) {
        var checked = _ref.target.checked;

        // Change is only emitted on user interaction
        this.$emit('change', checked ? this.value : null);
        // If this is a child of form-radio-group, we emit a change event on it as well
        if (this.is_Child) {
          this.$parent.$emit('change', this.computedLocalChecked);
        }
      }
    }
  };

  var bFormRadioGroup = {
    mixins: [idMixin, formMixin, formSizeMixin, formStateMixin, formCustomMixin, formOptionsMixin],
    components: { bFormRadio: bFormRadio },
    render: function render(h) {
      var _this = this;

      var $slots = this.$slots;

      var radios = this.formOptions.map(function (option, idx) {
        return h('b-form-radio', {
          key: 'radio_' + idx + '_opt',
          props: {
            id: _this.safeId('_BV_radio_' + idx + '_opt_'),
            name: _this.name,
            value: option.value,
            required: Boolean(_this.name && _this.required),
            disabled: option.disabled
          }
        }, [h('span', { domProps: { innerHTML: option.text } })]);
      });
      return h('div', {
        class: this.groupClasses,
        attrs: {
          id: this.safeId(),
          role: 'radiogroup',
          tabindex: '-1',
          'aria-required': this.required ? 'true' : null,
          'aria-invalid': this.computedAriaInvalid
        }
      }, [$slots.first, radios, $slots.default]);
    },
    data: function data() {
      return {
        localChecked: this.checked,
        // Flag for children
        is_RadioCheckGroup: true
      };
    },

    model: {
      prop: 'checked',
      event: 'input'
    },
    props: {
      checked: {
        type: [String, Object, Number, Boolean],
        default: null
      },
      validated: {
        // Used for applying hte `was-validated` class to the group
        type: Boolean,
        default: false
      },
      ariaInvalid: {
        type: [Boolean, String],
        default: false
      },
      stacked: {
        type: Boolean,
        default: false
      },
      buttons: {
        // Render as button style
        type: Boolean,
        default: false
      },
      buttonVariant: {
        // Only applicable when rendered with button style
        type: String,
        default: 'secondary'
      }
    },
    watch: {
      checked: function checked(newVal, oldVal) {
        this.localChecked = this.checked;
      },
      localChecked: function localChecked(newVal, oldVal) {
        this.$emit('input', newVal);
      }
    },
    computed: {
      groupClasses: function groupClasses() {
        if (this.buttons) {
          return ['btn-group-toggle', this.stacked ? 'btn-group-vertical' : 'btn-group', this.size ? 'btn-group-' + this.size : '', this.validated ? 'was-validated' : ''];
        }
        return [this.sizeFormClass, this.stacked && this.custom ? 'custom-controls-stacked' : '', this.validated ? 'was-validated' : ''];
      },
      computedAriaInvalid: function computedAriaInvalid() {
        if (this.ariaInvalid === true || this.ariaInvalid === 'true' || this.ariaInvalid === '') {
          return 'true';
        }
        return this.get_State === false ? 'true' : null;
      },
      get_State: function get_State() {
        // Required by child radios
        return this.computedState;
      }
    }
  };

  var components$g = {
    bFormRadio: bFormRadio,
    bRadio: bFormRadio,
    bFormRadioGroup: bFormRadioGroup,
    bRadioGroup: bFormRadioGroup
  };

  var VuePlugin$h = {
    install: function install(Vue) {
      registerComponents(Vue, components$g);
    }
  };

  vueUse(VuePlugin$h);

  // Valid supported input types
  var TYPES = ['text', 'password', 'email', 'number', 'url', 'tel', 'search', 'range', 'color', 'date', 'time', 'datetime', 'datetime-local', 'month', 'week'];

  var bFormInput = {
    mixins: [idMixin, formMixin, formSizeMixin, formStateMixin],
    render: function render(h) {
      return h('input', {
        ref: 'input',
        class: this.inputClass,
        attrs: {
          id: this.safeId(),
          name: this.name,
          type: this.localType,
          disabled: this.disabled,
          required: this.required,
          readonly: this.readonly || this.plaintext,
          placeholder: this.placeholder,
          autocomplete: this.autocomplete || null,
          'aria-required': this.required ? 'true' : null,
          'aria-invalid': this.computedAriaInvalid,
          value: this.value
        },
        on: {
          input: this.onInput,
          change: this.onChange
        }
      });
    },

    props: {
      value: {
        default: null
      },
      type: {
        type: String,
        default: 'text',
        validator: function validator(type) {
          return arrayIncludes(TYPES, type);
        }
      },
      ariaInvalid: {
        type: [Boolean, String],
        default: false
      },
      readonly: {
        type: Boolean,
        default: false
      },
      plaintext: {
        type: Boolean,
        default: false
      },
      autocomplete: {
        type: String,
        default: null
      },
      placeholder: {
        type: String,
        default: null
      },
      formatter: {
        type: Function
      },
      lazyFormatter: {
        type: Boolean,
        default: false
      }
    },
    computed: {
      localType: function localType() {
        // We only allow certain types
        return arrayIncludes(TYPES, this.type) ? this.type : 'text';
      },
      inputClass: function inputClass() {
        return [this.plaintext ? 'form-control-plaintext' : 'form-control', this.sizeFormClass, this.stateClass];
      },
      computedAriaInvalid: function computedAriaInvalid() {
        if (!this.ariaInvalid || this.ariaInvalid === 'false') {
          // this.ariaInvalid is null or false or 'false'
          return this.computedState === false ? 'true' : null;
        }
        if (this.ariaInvalid === true) {
          // User wants explicit aria-invalid=true
          return 'true';
        }
        // Most likely a string value (which could be 'true')
        return this.ariaInvalid;
      }
    },
    mounted: function mounted() {
      if (this.value) {
        var fValue = this.format(this.value, null);
        this.setValue(fValue);
      }
    },

    watch: {
      value: function value(newVal) {
        if (this.lazyFormatter) {
          this.setValue(newVal);
        } else {
          var fValue = this.format(newVal, null);
          this.setValue(fValue);
        }
      }
    },
    methods: {
      format: function format(value, e) {
        if (this.formatter) {
          return this.formatter(value, e);
        }
        return value;
      },
      setValue: function setValue(value) {
        this.$emit('input', value);
        // When formatter removes last typed character, value of text input should update to formatted value
        this.$refs.input.value = value;
      },
      onInput: function onInput(evt) {
        var value = evt.target.value;

        if (this.lazyFormatter) {
          this.setValue(value);
        } else {
          var fValue = this.format(value, evt);
          this.setValue(fValue);
        }
      },
      onChange: function onChange(evt) {
        var fValue = this.format(evt.target.value, evt);
        this.setValue(fValue);
        this.$emit('change', fValue);
      },
      focus: function focus() {
        if (!this.disabled) {
          this.$el.focus();
        }
      }
    }
  };

  var components$h = {
    bFormInput: bFormInput,
    bInput: bFormInput
  };

  var VuePlugin$i = {
    install: function install(Vue) {
      registerComponents(Vue, components$h);
    }
  };

  vueUse(VuePlugin$i);

  var bFormTextarea = {
    mixins: [idMixin, formMixin, formSizeMixin, formStateMixin],
    render: function render(h) {
      var _this = this;

      return h('textarea', {
        ref: 'input',
        class: this.inputClass,
        style: this.inputStyle,
        directives: [{
          name: 'model',
          rawName: 'v-model',
          value: this.localValue,
          expression: 'localValue'
        }],
        domProps: { value: this.value },
        attrs: {
          id: this.safeId(),
          name: this.name,
          disabled: this.disabled,
          placeholder: this.placeholder,
          required: this.required,
          autocomplete: this.autocomplete || null,
          readonly: this.readonly || this.plaintext,
          rows: this.rowsCount,
          wrap: this.wrap || null,
          'aria-required': this.required ? 'true' : null,
          'aria-invalid': this.computedAriaInvalid
        },
        on: {
          input: function input(evt) {
            _this.localValue = evt.target.value;
          }
        }
      });
    },
    data: function data() {
      return {
        localValue: this.value
      };
    },

    props: {
      value: {
        type: String,
        default: ''
      },
      ariaInvalid: {
        type: [Boolean, String],
        default: false
      },
      readonly: {
        type: Boolean,
        default: false
      },
      plaintext: {
        type: Boolean,
        default: false
      },
      autocomplete: {
        type: String,
        default: null
      },
      placeholder: {
        type: String,
        default: null
      },
      rows: {
        type: [Number, String],
        default: null
      },
      maxRows: {
        type: [Number, String],
        default: null
      },
      wrap: {
        // 'soft', 'hard' or 'off'. Browser default is 'soft'
        type: String,
        default: 'soft'
      },
      noResize: {
        type: Boolean,
        default: false
      }
    },
    computed: {
      rowsCount: function rowsCount() {
        // A better option could be based on https://codepen.io/vsync/pen/frudD
        // As linebreaks aren't added until the input is submitted
        var rows = parseInt(this.rows, 10) || 1;
        var maxRows = parseInt(this.maxRows, 10) || 0;
        var lines = (this.localValue || '').toString().split('\n').length;
        return maxRows ? Math.min(maxRows, Math.max(rows, lines)) : Math.max(rows, lines);
      },
      inputClass: function inputClass() {
        return [this.plaintext ? 'form-control-plaintext' : 'form-control', this.sizeFormClass, this.stateClass];
      },
      inputStyle: function inputStyle() {
        // We set width 100% in plaintext mode to get around a shortcoming in bootstrap CSS
        // setting noResize to true will disable the ability for the user to resize the textarea
        return {
          width: this.plaintext ? '100%' : null,
          resize: this.noResize ? 'none' : null
        };
      },
      computedAriaInvalid: function computedAriaInvalid() {
        if (!this.ariaInvalid || this.ariaInvalid === 'false') {
          // this.ariaInvalid is null or false or 'false'
          return this.computedState === false ? 'true' : null;
        }
        if (this.ariaInvalid === true) {
          // User wants explicit aria-invalid=true
          return 'true';
        }
        // Most likely a string value (which could be the string 'true')
        return this.ariaInvalid;
      }
    },
    watch: {
      value: function value(newVal, oldVal) {
        // Update our localValue
        if (newVal !== oldVal) {
          this.localValue = newVal;
        }
      },
      localValue: function localValue(newVal, oldVal) {
        // update Parent value
        if (newVal !== oldVal) {
          this.$emit('input', newVal);
        }
      }
    },
    methods: {
      focus: function focus() {
        // For external handler that may want a focus method
        if (!this.disabled) {
          this.$el.focus();
        }
      }
    }
  };

  var components$i = {
    bFormTextarea: bFormTextarea,
    bTextarea: bFormTextarea
  };

  var VuePlugin$j = {
    install: function install(Vue) {
      registerComponents(Vue, components$i);
    }
  };

  vueUse(VuePlugin$j);

  var bFormFile = {
    mixins: [idMixin, formMixin, formStateMixin, formCustomMixin],
    render: function render(h) {
      // Form Input
      var input = h('input', {
        ref: 'input',
        class: [{
          'form-control-file': this.plain,
          'custom-file-input': this.custom,
          focus: this.custom && this.hasFocus
        }, this.stateClass],
        attrs: {
          type: 'file',
          id: this.safeId(),
          name: this.name,
          disabled: this.disabled,
          required: this.required,
          capture: this.capture || null,
          accept: this.accept || null,
          multiple: this.multiple,
          webkitdirectory: this.directory,
          'aria-required': this.required ? 'true' : null,
          'aria-describedby': this.plain ? null : this.safeId('_BV_file_control_')
        },
        on: {
          change: this.onFileChange,
          focusin: this.focusHandler,
          focusout: this.focusHandler
        }
      });

      if (this.plain) {
        return input;
      }

      // Overlay Labels
      var label = h('label', {
        class: ['custom-file-label', this.dragging ? 'dragging' : null],
        attrs: {
          id: this.safeId('_BV_file_control_')
        }
      }, this.selectLabel);

      // Return rendered custom file input
      return h('div', {
        class: ['custom-file', 'b-form-file', this.stateClass],
        attrs: { id: this.safeId('_BV_file_outer_') },
        on: { dragover: this.dragover }
      }, [input, label]);
    },
    data: function data() {
      return {
        selectedFile: null,
        dragging: false,
        hasFocus: false
      };
    },

    props: {
      accept: {
        type: String,
        default: ''
      },
      // Instruct input to capture from camera
      capture: {
        type: Boolean,
        default: false
      },
      placeholder: {
        type: String,
        default: undefined
      },
      multiple: {
        type: Boolean,
        default: false
      },
      directory: {
        type: Boolean,
        default: false
      },
      noTraverse: {
        type: Boolean,
        default: false
      },
      noDrop: {
        type: Boolean,
        default: false
      }
    },
    computed: {
      selectLabel: function selectLabel() {
        // No file choosen
        if (!this.selectedFile || this.selectedFile.length === 0) {
          return this.placeholder;
        }

        // Multiple files
        if (this.multiple) {
          if (this.selectedFile.length === 1) {
            return this.selectedFile[0].name;
          }
          return this.selectedFile.map(function (file) {
            return file.name;
          }).join(', ');
        }

        // Single file
        return this.selectedFile.name;
      }
    },
    watch: {
      selectedFile: function selectedFile(newVal, oldVal) {
        if (newVal === oldVal) {
          return;
        }
        if (!newVal && this.multiple) {
          this.$emit('input', []);
        } else {
          this.$emit('input', newVal);
        }
      }
    },
    methods: {
      focusHandler: function focusHandler(evt) {
        // Boostrap v4.beta doesn't have focus styling for custom file input
        // Firefox has a borked '[type=file]:focus ~ sibling' selector issue,
        // So we add a 'focus' class to get around these "bugs"
        if (this.plain || evt.type === 'focusout') {
          this.hasFocus = false;
        } else {
          // Add focus styling for custom file input
          this.hasFocus = true;
        }
      },
      reset: function reset() {
        try {
          // Wrapped in try in case IE < 11 craps out
          this.$refs.input.value = '';
        } catch (e) {}
        // IE < 11 doesn't support setting input.value to '' or null
        // So we use this little extra hack to reset the value, just in case
        // This also appears to work on modern browsers as well.
        this.$refs.input.type = '';
        this.$refs.input.type = 'file';
        this.selectedFile = this.multiple ? [] : null;
      },
      onFileChange: function onFileChange(evt) {
        var _this = this;

        // Always emit original event
        this.$emit('change', evt);
        // Check if special `items` prop is available on event (drop mode)
        // Can be disabled by setting no-traverse
        var items = evt.dataTransfer && evt.dataTransfer.items;
        if (items && !this.noTraverse) {
          var queue = [];
          for (var i = 0; i < items.length; i++) {
            var item = items[i].webkitGetAsEntry();
            if (item) {
              queue.push(this.traverseFileTree(item));
            }
          }
          Promise.all(queue).then(function (filesArr) {
            _this.setFiles(from(filesArr));
          });
          return;
        }
        // Normal handling
        this.setFiles(evt.target.files || evt.dataTransfer.files);
      },
      setFiles: function setFiles(files) {
        if (!files) {
          this.selectedFile = null;
          return;
        }
        if (!this.multiple) {
          this.selectedFile = files[0];
          return;
        }
        // Convert files to array
        var filesArray = [];
        for (var i = 0; i < files.length; i++) {
          if (files[i].type.match(this.accept)) {
            filesArray.push(files[i]);
          }
        }
        this.selectedFile = filesArray;
      },
      dragover: function dragover(evt) {
        evt.preventDefault();
        evt.stopPropagation();
        if (this.noDrop || !this.custom) {
          return;
        }
        this.dragging = true;
        evt.dataTransfer.dropEffect = 'copy';
      },
      dragleave: function dragleave(evt) {
        evt.preventDefault();
        evt.stopPropagation();
        this.dragging = false;
      },
      drop: function drop(evt) {
        evt.preventDefault();
        evt.stopPropagation();
        if (this.noDrop) {
          return;
        }
        this.dragging = false;
        if (evt.dataTransfer.files && evt.dataTransfer.files.length > 0) {
          this.onFileChange(evt);
        }
      },
      traverseFileTree: function traverseFileTree(item, path) {
        var _this2 = this;

        // Based on http://stackoverflow.com/questions/3590058
        return new Promise(function (resolve) {
          path = path || '';
          if (item.isFile) {
            // Get file
            item.file(function (file) {
              file.$path = path; // Inject $path to file obj
              resolve(file);
            });
          } else if (item.isDirectory) {
            // Get folder contents
            item.createReader().readEntries(function (entries) {
              var queue = [];
              for (var i = 0; i < entries.length; i++) {
                queue.push(_this2.traverseFileTree(entries[i], path + item.name + '/'));
              }
              Promise.all(queue).then(function (filesArr) {
                resolve(from(filesArr));
              });
            });
          }
        });
      }
    }
  };

  var components$j = {
    bFormFile: bFormFile,
    bFile: bFormFile
  };

  var VuePlugin$k = {
    install: function install(Vue) {
      registerComponents(Vue, components$j);
    }
  };

  vueUse(VuePlugin$k);

  var bFormSelect = {
    mixins: [idMixin, formMixin, formSizeMixin, formStateMixin, formCustomMixin, formOptionsMixin],
    render: function render(h) {
      var _this = this;

      var $slots = this.$slots;
      var options = this.formOptions.map(function (option, index) {
        return h('option', {
          key: 'option_' + index + '_opt',
          attrs: { disabled: Boolean(option.disabled) },
          domProps: { innerHTML: option.text, value: option.value }
        });
      });
      return h('select', {
        ref: 'input',
        class: this.inputClass,
        directives: [{
          name: 'model',
          rawName: 'v-model',
          value: this.localValue,
          expression: 'localValue'
        }],
        attrs: {
          id: this.safeId(),
          name: this.name,
          multiple: this.multiple || null,
          size: this.computedSelectSize,
          disabled: this.disabled,
          required: this.required,
          'aria-required': this.required ? 'true' : null,
          'aria-invalid': this.computedAriaInvalid
        },
        on: {
          change: function change(evt) {
            var target = evt.target;
            var selectedVal = from(target.options).filter(function (o) {
              return o.selected;
            }).map(function (o) {
              return '_value' in o ? o._value : o.value;
            });
            _this.localValue = target.multiple ? selectedVal : selectedVal[0];
            _this.$emit('change', _this.localValue);
          }
        }
      }, [$slots.first, options, $slots.default]);
    },
    data: function data() {
      return {
        localValue: this.value
      };
    },

    watch: {
      value: function value(newVal, oldVal) {
        this.localValue = newVal;
      },
      localValue: function localValue(newVal, oldVal) {
        this.$emit('input', this.localValue);
      }
    },
    props: {
      value: {},
      multiple: {
        type: Boolean,
        default: false
      },
      selectSize: {
        // Browsers default size to 0, which shows 4 rows in most browsers in multiple mode
        // Size of 1 can bork out firefox
        type: Number,
        default: 0
      },
      ariaInvalid: {
        type: [Boolean, String],
        default: false
      }
    },
    computed: {
      computedSelectSize: function computedSelectSize() {
        // Custom selects with a size of zero causes the arrows to be hidden,
        // so dont render the size attribute in this case
        return !this.plain && this.selectSize === 0 ? null : this.selectSize;
      },
      inputClass: function inputClass() {
        return ['form-control', this.stateClass, this.sizeFormClass,
        // Awaiting for https://github.com/twbs/bootstrap/issues/23058
        this.plain ? null : 'custom-select', this.plain || !this.size ? null : 'custom-select-' + this.size];
      },
      computedAriaInvalid: function computedAriaInvalid() {
        if (this.ariaInvalid === true || this.ariaInvalid === 'true') {
          return 'true';
        }
        return this.stateClass === 'is-invalid' ? 'true' : null;
      }
    }
  };

  var components$k = {
    bFormSelect: bFormSelect,
    bSelect: bFormSelect
  };

  var VuePlugin$l = {
    install: function install(Vue) {
      registerComponents(Vue, components$k);
    }
  };

  vueUse(VuePlugin$l);

  var THROTTLE = 100;

  var bImgLazy = {
    components: { bImg: bImg },
    render: function render(h) {
      return h('b-img', {
        props: {
          src: this.computedSrc,
          alt: this.alt,
          blank: this.computedBlank,
          blankColor: this.blankColor,
          width: this.computedWidth,
          height: this.computedHeight,
          fluid: this.fluid,
          fluidGrow: this.fluidGrow,
          block: this.block,
          thumbnail: this.thumbnail,
          rounded: this.rounded,
          left: this.left,
          right: this.right,
          center: this.center
        }
      });
    },
    data: function data() {
      return {
        isShown: false,
        scrollTimeout: null
      };
    },

    props: {
      src: {
        type: String,
        default: null,
        required: true
      },
      alt: {
        type: String,
        default: null
      },
      width: {
        type: [Number, String],
        default: null
      },
      height: {
        type: [Number, String],
        default: null
      },
      blankSrc: {
        // If null, a blank image is generated
        type: String,
        default: null
      },
      blankColor: {
        type: String,
        default: 'transparent'
      },
      blankWidth: {
        type: [Number, String],
        default: null
      },
      blankHeight: {
        type: [Number, String],
        default: null
      },
      fluid: {
        type: Boolean,
        default: false
      },
      fluidGrow: {
        type: Boolean,
        default: false
      },
      block: {
        type: Boolean,
        default: false
      },
      thumbnail: {
        type: Boolean,
        default: false
      },
      rounded: {
        type: [Boolean, String],
        default: false
      },
      left: {
        type: Boolean,
        default: false
      },
      right: {
        type: Boolean,
        default: false
      },
      center: {
        type: Boolean,
        default: false
      },
      offset: {
        type: [Number, String],
        default: 360
      },
      throttle: {
        type: [Number, String],
        default: THROTTLE
      }
    },
    computed: {
      computedSrc: function computedSrc() {
        return !this.blankSrc || this.isShown ? this.src : this.blankSrc;
      },
      computedBlank: function computedBlank() {
        return !(this.isShown || this.blankSrc);
      },
      computedWidth: function computedWidth() {
        return this.isShown ? this.width : this.blankWidth || this.width;
      },
      computedHeight: function computedHeight() {
        return this.isShown ? this.height : this.blankHeight || this.height;
      }
    },
    mounted: function mounted() {
      this.setListeners(true);
      this.checkView();
    },
    activated: function activated() {
      this.setListeners(true);
      this.checkView();
    },
    deactivated: function deactivated() {
      this.setListeners(false);
    },
    beforeDdestroy: function beforeDdestroy() {
      this.setListeners(false);
    },

    methods: {
      setListeners: function setListeners(on) {
        clearTimeout(this.scrollTimer);
        this.scrollTimeout = null;
        var root = window;
        if (on) {
          eventOn(root, 'scroll', this.onScroll);
          eventOn(root, 'resize', this.onScroll);
          eventOn(root, 'orientationchange', this.onScroll);
        } else {
          eventOff(root, 'scroll', this.onScroll);
          eventOff(root, 'resize', this.onScroll);
          eventOff(root, 'orientationchange', this.onScroll);
        }
      },
      checkView: function checkView() {
        // check bounding box + offset to see if we should show
        if (!isVisible(this.$el)) {
          // Element is hidden, so skip for now
          return;
        }
        var offset$$1 = parseInt(this.offset, 10) || 0;
        var docElement = document.documentElement;
        var view = {
          l: 0 - offset$$1,
          t: 0 - offset$$1,
          b: docElement.clientHeight + offset$$1,
          r: docElement.clientWidth + offset$$1
        };
        var box = getBCR(this.$el);
        if (box.right >= view.l && box.bottom >= view.t && box.left <= view.r && box.top <= view.b) {
          // image is in view (or about to be in view)
          this.isShown = true;
          this.setListeners(false);
        }
      },
      onScroll: function onScroll() {
        if (this.isShown) {
          this.setListeners(false);
        } else {
          clearTimeout(this.scrollTimeout);
          this.scrollTimeout = setTimeout(this.checkView, parseInt(this.throttle, 10) || THROTTLE);
        }
      }
    }
  };

  var components$l = {
    bImg: bImg,
    bImgLazy: bImgLazy
  };

  var VuePlugin$m = {
    install: function install(Vue) {
      registerComponents(Vue, components$l);
    }
  };

  vueUse(VuePlugin$m);

  var props$u = {
    fluid: {
      type: Boolean,
      default: false
    },
    containerFluid: {
      type: Boolean,
      default: false
    },
    header: {
      type: String,
      default: null
    },
    headerTag: {
      type: String,
      default: 'h1'
    },
    headerLevel: {
      type: [Number, String],
      default: '3'
    },
    lead: {
      type: String,
      default: null
    },
    leadTag: {
      type: String,
      default: 'p'
    },
    tag: {
      type: String,
      default: 'div'
    },
    bgVariant: {
      type: String,
      default: null
    },
    borderVariant: {
      type: String,
      default: null
    },
    textVariant: {
      type: String,
      default: null
    }
  };

  var bJumbotron = {
    functional: true,
    props: props$u,
    render: function render(h, _ref) {
      var _class2;

      var props = _ref.props,
          data = _ref.data,
          slots = _ref.slots;

      // The order of the conditionals matter.
      // We are building the component markup in order.
      var childNodes = [];
      var $slots = slots();

      // Header
      if (props.header || $slots.header) {
        childNodes.push(h(props.headerTag, {
          class: defineProperty({}, 'display-' + props.headerLevel, Boolean(props.headerLevel))
        }, $slots.header || props.header));
      }

      // Lead
      if (props.lead || $slots.lead) {
        childNodes.push(h(props.leadTag, { staticClass: 'lead' }, $slots.lead || props.lead));
      }

      // Default slot
      if ($slots.default) {
        childNodes.push($slots.default);
      }

      // If fluid, wrap content in a container/container-fluid
      if (props.fluid) {
        // Children become a child of a container
        childNodes = [h(Container, { props: { 'fluid': props.containerFluid } }, childNodes)];
      }
      // Return the jumbotron
      return h(props.tag, mergeData(data, {
        staticClass: 'jumbotron',
        class: (_class2 = {
          'jumbotron-fluid': props.fluid
        }, defineProperty(_class2, 'text-' + props.textVariant, Boolean(props.textVariant)), defineProperty(_class2, 'bg-' + props.bgVariant, Boolean(props.bgVariant)), defineProperty(_class2, 'border-' + props.borderVariant, Boolean(props.borderVariant)), defineProperty(_class2, 'border', Boolean(props.borderVariant)), _class2)
      }), childNodes);
    }
  };

  var components$m = {
    bJumbotron: bJumbotron
  };

  var VuePlugin$n = {
    install: function install(Vue) {
      registerComponents(Vue, components$m);
    }
  };

  vueUse(VuePlugin$n);

  var components$n = {
    bLink: bLink
  };

  var VuePlugin$o = {
    install: function install(Vue) {
      registerComponents(Vue, components$n);
    }
  };

  vueUse(VuePlugin$o);

  var props$v = {
    tag: {
      type: String,
      default: 'div'
    },
    flush: {
      type: Boolean,
      default: false
    }
  };

  var bListGroup = {
    functional: true,
    props: props$v,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var componentData = {
        staticClass: 'list-group',
        class: { 'list-group-flush': props.flush }
      };

      return h(props.tag, mergeData(data, componentData), children);
    }
  };

  var actionTags = ['a', 'router-link', 'button', 'b-link'];
  var linkProps$2 = propsFactory();
  delete linkProps$2.href.default;
  delete linkProps$2.to.default;

  var props$w = assign({
    tag: {
      type: String,
      default: 'div'
    },
    action: {
      type: Boolean,
      default: null
    },
    button: {
      type: Boolean,
      default: null
    },
    variant: {
      type: String,
      default: null
    }
  }, linkProps$2);

  var bListGroupItem = {
    functional: true,
    props: props$w,
    render: function render(h, _ref) {
      var _class;

      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var tag = props.button ? 'button' : !props.href && !props.to ? props.tag : bLink;
      var isAction = Boolean(props.href || props.to || props.action || props.button || arrayIncludes(actionTags, props.tag));
      var componentData = {
        staticClass: 'list-group-item',
        class: (_class = {}, defineProperty(_class, 'list-group-item-' + props.variant, Boolean(props.variant)), defineProperty(_class, 'list-group-item-action', isAction), defineProperty(_class, 'active', props.active), defineProperty(_class, 'disabled', props.disabled), _class),
        attrs: tag === 'button' && props.disabled ? { disabled: true } : {},
        props: props.button ? {} : pluckProps(linkProps$2, props)
      };

      return h(tag, mergeData(data, componentData), children);
    }
  };

  var components$o = {
    bListGroup: bListGroup,
    bListGroupItem: bListGroupItem
  };

  var VuePlugin$p = {
    install: function install(Vue) {
      registerComponents(Vue, components$o);
    }
  };

  vueUse(VuePlugin$p);

  var props$x = {
    tag: {
      type: String,
      default: 'div'
    }
  };

  var MediaBody = {
    functional: true,
    props: props$x,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'media-body'
      }), children);
    }
  };

  var props$y = {
    tag: {
      type: String,
      default: 'div'
    },
    verticalAlign: {
      type: String,
      default: 'top'
    }
  };

  var MediaAside = {
    functional: true,
    props: props$y,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'd-flex',
        class: defineProperty({}, 'align-self-' + props.verticalAlign, props.verticalAlign)
      }), children);
    }
  };

  var props$z = {
    tag: {
      type: String,
      default: 'div'
    },
    rightAlign: {
      type: Boolean,
      default: false
    },
    verticalAlign: {
      type: String,
      default: 'top'
    },
    noBody: {
      type: Boolean,
      default: false
    }
  };

  var bMedia = {
    functional: true,
    props: props$z,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          slots = _ref.slots,
          children = _ref.children;

      var childNodes = props.noBody ? children : [];
      var $slots = slots();

      if (!props.noBody) {
        if ($slots.aside && !props.rightAlign) {
          childNodes.push(h(MediaAside, { staticClass: 'mr-3', props: { verticalAlign: props.verticalAlign } }, $slots.aside));
        }

        childNodes.push(h(MediaBody, $slots.default));

        if ($slots.aside && props.rightAlign) {
          childNodes.push(h(MediaAside, { staticClass: 'ml-3', props: { verticalAlign: props.verticalAlign } }, $slots.aside));
        }
      }

      return h(props.tag, mergeData(data, { staticClass: 'media' }), childNodes);
    }
  };

  var components$p = {
    bMedia: bMedia,
    bMediaAside: MediaAside,
    bMediaBody: MediaBody
  };

  var VuePlugin$q = {
    install: function install(Vue) {
      registerComponents(Vue, components$p);
    }
  };

  vueUse(VuePlugin$q);

  // Selectors for padding/margin adjustments
  var Selector = {
    FIXED_CONTENT: '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
    STICKY_CONTENT: '.sticky-top',
    NAVBAR_TOGGLER: '.navbar-toggler'

    // ObserveDom config
  };var OBSERVER_CONFIG = {
    subtree: true,
    childList: true,
    characterData: true,
    attributes: true,
    attributeFilter: ['style', 'class']
  };

  var bModal = {
    mixins: [idMixin, listenOnRootMixin],
    components: { bBtn: bBtn, bBtnClose: bBtnClose },
    render: function render(h) {
      var _this = this;

      var $slots = this.$slots;
      // Modal Header
      var header = h(false);
      if (!this.hideHeader) {
        var modalHeader = $slots['modal-header'];
        if (!modalHeader) {
          var closeButton = h(false);
          if (!this.hideHeaderClose) {
            closeButton = h('b-btn-close', {
              props: {
                disabled: this.is_transitioning,
                ariaLabel: this.headerCloseLabel,
                textVariant: this.headerTextVariant
              },
              on: {
                click: function click(evt) {
                  _this.hide('header-close');
                }
              }
            }, [$slots['modal-header-close']]);
          }
          modalHeader = [h(this.titleTag, { class: ['modal-title'] }, [$slots['modal-title'] || this.title]), closeButton];
        }
        header = h('header', {
          ref: 'header',
          class: this.headerClasses,
          attrs: { id: this.safeId('__BV_modal_header_') }
        }, [modalHeader]);
      }
      // Modal Body
      var body = h('div', {
        ref: 'body',
        class: this.bodyClasses,
        attrs: { id: this.safeId('__BV_modal_body_') }
      }, [$slots.default]);
      // Modal Footer
      var footer = h(false);
      if (!this.hideFooter) {
        var modalFooter = $slots['modal-footer'];
        if (!modalFooter) {
          var cancelButton = h(false);
          if (!this.okOnly) {
            cancelButton = h('b-btn', {
              props: {
                variant: this.cancelVariant,
                size: this.buttonSize,
                disabled: this.cancelDisabled || this.busy || this.is_transitioning
              },
              on: {
                click: function click(evt) {
                  _this.hide('cancel');
                }
              }
            }, [$slots['modal-cancel'] || this.cancelTitle]);
          }
          var okButton = h('b-btn', {
            props: {
              variant: this.okVariant,
              size: this.buttonSize,
              disabled: this.okDisabled || this.busy || this.is_transitioning
            },
            on: {
              click: function click(evt) {
                _this.hide('ok');
              }
            }
          }, [$slots['modal-ok'] || this.okTitle]);
          modalFooter = [cancelButton, okButton];
        }
        footer = h('footer', {
          ref: 'footer',
          class: this.footerClasses,
          attrs: { id: this.safeId('__BV_modal_footer_') }
        }, [modalFooter]);
      }
      // Assemble Modal Content
      var modalContent = h('div', {
        ref: 'content',
        class: ['modal-content'],
        attrs: {
          tabindex: '-1',
          role: 'document',
          'aria-labelledby': this.hideHeader ? null : this.safeId('__BV_modal_header_'),
          'aria-describedby': this.safeId('__BV_modal_body_')
        },
        on: {
          focusout: this.onFocusout,
          click: function click(evt) {
            evt.stopPropagation();
            // https://github.com/bootstrap-vue/bootstrap-vue/issues/1528
            _this.$root.$emit('bv::dropdown::shown');
          }
        }
      }, [header, body, footer]);
      // Modal Dialog wrapper
      var modalDialog = h('div', { class: this.dialogClasses }, [modalContent]);
      // Modal
      var modal = h('div', {
        ref: 'modal',
        class: this.modalClasses,
        directives: [{
          name: 'show',
          rawName: 'v-show',
          value: this.is_visible,
          expression: 'is_visible'
        }],
        attrs: {
          id: this.safeId(),
          role: 'dialog',
          'aria-hidden': this.is_visible ? null : 'true'
        },
        on: {
          click: this.onClickOut,
          keydown: this.onEsc
        }
      }, [modalDialog]);
      // Wrap modal in transition
      modal = h('transition', {
        props: {
          enterClass: '',
          enterToClass: '',
          enterActiveClass: '',
          leaveClass: '',
          leaveActiveClass: '',
          leaveToClass: ''
        },
        on: {
          'before-enter': this.onBeforeEnter,
          enter: this.onEnter,
          'after-enter': this.onAfterEnter,
          'before-leave': this.onBeforeLeave,
          leave: this.onLeave,
          'after-leave': this.onAfterLeave
        }
      }, [modal]);
      // Modal Backdrop
      var backdrop = h(false);
      if (!this.hideBackdrop && (this.is_visible || this.is_transitioning)) {
        backdrop = h('div', {
          class: this.backdropClasses,
          attrs: { id: this.safeId('__BV_modal_backdrop_') }
        });
      }
      // Assemble modal and backdrop
      var outer = h(false);
      if (!this.is_hidden) {
        outer = h('div', { attrs: { id: this.safeId('__BV_modal_outer_') } }, [modal, backdrop]);
      }
      // Wrap in DIV to maintain thi.$el reference for hide/show method aceess
      return h('div', {}, [outer]);
    },
    data: function data() {
      return {
        is_hidden: this.lazy || false,
        is_visible: false,
        is_transitioning: false,
        is_show: false,
        is_block: false,
        scrollbarWidth: 0,
        isBodyOverflowing: false,
        return_focus: this.returnFocus || null
      };
    },

    model: {
      prop: 'visible',
      event: 'change'
    },
    props: {
      title: {
        type: String,
        default: ''
      },
      titleTag: {
        type: String,
        default: 'h5'
      },
      size: {
        type: String,
        default: 'md'
      },
      centered: {
        type: Boolean,
        default: false
      },
      buttonSize: {
        type: String,
        default: ''
      },
      noFade: {
        type: Boolean,
        default: false
      },
      noCloseOnBackdrop: {
        type: Boolean,
        default: false
      },
      noCloseOnEsc: {
        type: Boolean,
        default: false
      },
      noEnforceFocus: {
        type: Boolean,
        default: false
      },
      headerBgVariant: {
        type: String,
        default: null
      },
      headerBorderVariant: {
        type: String,
        default: null
      },
      headerTextVariant: {
        type: String,
        default: null
      },
      headerClass: {
        type: [String, Array],
        default: null
      },
      bodyBgVariant: {
        type: String,
        default: null
      },
      bodyTextVariant: {
        type: String,
        default: null
      },
      modalClass: {
        type: [String, Array],
        default: null
      },
      bodyClass: {
        type: [String, Array],
        default: null
      },
      footerBgVariant: {
        type: String,
        default: null
      },
      footerBorderVariant: {
        type: String,
        default: null
      },
      footerTextVariant: {
        type: String,
        default: null
      },
      footerClass: {
        type: [String, Array],
        default: null
      },
      hideHeader: {
        type: Boolean,
        default: false
      },
      hideFooter: {
        type: Boolean,
        default: false
      },
      hideHeaderClose: {
        type: Boolean,
        default: false
      },
      hideBackdrop: {
        type: Boolean,
        default: false
      },
      okOnly: {
        type: Boolean,
        default: false
      },
      okDisabled: {
        type: Boolean,
        default: false
      },
      cancelDisabled: {
        type: Boolean,
        default: false
      },
      visible: {
        type: Boolean,
        default: false
      },
      returnFocus: {
        default: null
      },
      headerCloseLabel: {
        type: String,
        default: 'Close'
      },
      cancelTitle: {
        type: String,
        default: 'Cancel'
      },
      okTitle: {
        type: String,
        default: 'OK'
      },
      cancelVariant: {
        type: String,
        default: 'secondary'
      },
      okVariant: {
        type: String,
        default: 'primary'
      },
      lazy: {
        type: Boolean,
        default: false
      },
      busy: {
        type: Boolean,
        default: false
      }
    },
    computed: {
      modalClasses: function modalClasses() {
        return ['modal', {
          fade: !this.noFade,
          show: this.is_show,
          'd-block': this.is_block
        }, this.modalClass];
      },
      dialogClasses: function dialogClasses() {
        var _ref;

        return ['modal-dialog', (_ref = {}, defineProperty(_ref, 'modal-' + this.size, Boolean(this.size)), defineProperty(_ref, 'modal-dialog-centered', this.centered), _ref)];
      },
      backdropClasses: function backdropClasses() {
        return ['modal-backdrop', {
          fade: !this.noFade,
          show: this.is_show || this.noFade
        }];
      },
      headerClasses: function headerClasses() {
        var _ref2;

        return ['modal-header', (_ref2 = {}, defineProperty(_ref2, 'bg-' + this.headerBgVariant, Boolean(this.headerBgVariant)), defineProperty(_ref2, 'text-' + this.headerTextVariant, Boolean(this.headerTextVariant)), defineProperty(_ref2, 'border-' + this.headerBorderVariant, Boolean(this.headerBorderVariant)), _ref2), this.headerClass];
      },
      bodyClasses: function bodyClasses() {
        var _ref3;

        return ['modal-body', (_ref3 = {}, defineProperty(_ref3, 'bg-' + this.bodyBgVariant, Boolean(this.bodyBgVariant)), defineProperty(_ref3, 'text-' + this.bodyTextVariant, Boolean(this.bodyTextVariant)), _ref3), this.bodyClass];
      },
      footerClasses: function footerClasses() {
        var _ref4;

        return ['modal-footer', (_ref4 = {}, defineProperty(_ref4, 'bg-' + this.footerBgVariant, Boolean(this.footerBgVariant)), defineProperty(_ref4, 'text-' + this.footerTextVariant, Boolean(this.footerTextVariant)), defineProperty(_ref4, 'border-' + this.footerBorderVariant, Boolean(this.footerBorderVariant)), _ref4), this.footerClass];
      }
    },
    watch: {
      visible: function visible(newVal, oldVal) {
        if (newVal === oldVal) {
          return;
        }
        this[newVal ? 'show' : 'hide']();
      }
    },
    methods: {
      // Public Methods
      show: function show() {
        if (this.is_visible) {
          return;
        }
        var showEvt = new BvEvent('show', {
          cancelable: true,
          vueTarget: this,
          target: this.$refs.modal,
          relatedTarget: null
        });
        this.emitEvent(showEvt);
        if (showEvt.defaultPrevented || this.is_visible) {
          // Don't show if canceled
          return;
        }
        if (hasClass(document.body, 'modal-open')) {
          // If another modal is already open, wait for it to close
          this.$root.$once('bv::modal::hidden', this.doShow);
        } else {
          // Show the modal
          this.doShow();
        }
      },
      hide: function hide(trigger) {
        if (!this.is_visible) {
          return;
        }
        var hideEvt = new BvEvent('hide', {
          cancelable: true,
          vueTarget: this,
          target: this.$refs.modal,
          // this could be the trigger element/component reference
          relatedTarget: null,
          isOK: trigger || null,
          trigger: trigger || null,
          cancel: function cancel() {
            // Backwards compatibility
            warn('b-modal: evt.cancel() is deprecated. Please use evt.preventDefault().');
            this.preventDefault();
          }
        });
        if (trigger === 'ok') {
          this.$emit('ok', hideEvt);
        } else if (trigger === 'cancel') {
          this.$emit('cancel', hideEvt);
        }
        this.emitEvent(hideEvt);
        // Hide if not canceled
        if (hideEvt.defaultPrevented || !this.is_visible) {
          return;
        }
        // stop observing for content changes
        if (this._observer) {
          this._observer.disconnect();
          this._observer = null;
        }
        this.is_visible = false;
        this.$emit('change', false);
      },

      // Private method to finish showing modal
      doShow: function doShow() {
        var _this2 = this;

        // Plce modal in DOM if lazy
        this.is_hidden = false;
        this.$nextTick(function () {
          // We do this in nextTick to ensure the modal is in DOM first before we show it
          _this2.is_visible = true;
          _this2.$emit('change', true);
          // Observe changes in modal content and adjust if necessary
          _this2._observer = observeDOM(_this2.$refs.content, _this2.adjustDialog.bind(_this2), OBSERVER_CONFIG);
        });
      },

      // Transition Handlers
      onBeforeEnter: function onBeforeEnter() {
        this.is_transitioning = true;
        this.checkScrollbar();
        this.setScrollbar();
        this.adjustDialog();
        addClass(document.body, 'modal-open');
        this.setResizeEvent(true);
      },
      onEnter: function onEnter() {
        this.is_block = true;
        this.$refs.modal.scrollTop = 0;
      },
      onAfterEnter: function onAfterEnter() {
        var _this3 = this;

        this.is_show = true;
        this.is_transitioning = false;
        this.$nextTick(function () {
          _this3.focusFirst();
          var shownEvt = new BvEvent('shown', {
            cancelable: false,
            vueTarget: _this3,
            target: _this3.$refs.modal,
            relatedTarget: null
          });
          _this3.emitEvent(shownEvt);
        });
      },
      onBeforeLeave: function onBeforeLeave() {
        this.is_transitioning = true;
        this.setResizeEvent(false);
      },
      onLeave: function onLeave() {
        // Remove the 'show' class
        this.is_show = false;
      },
      onAfterLeave: function onAfterLeave() {
        var _this4 = this;

        this.is_block = false;
        this.resetAdjustments();
        this.resetScrollbar();
        this.is_transitioning = false;
        removeClass(document.body, 'modal-open');
        this.$nextTick(function () {
          _this4.is_hidden = _this4.lazy || false;
          _this4.returnFocusTo();
          var hiddenEvt = new BvEvent('hidden', {
            cancelable: false,
            vueTarget: _this4,
            target: _this4.lazy ? null : _this4.$refs.modal,
            relatedTarget: null
          });
          _this4.emitEvent(hiddenEvt);
        });
      },

      // Event emitter
      emitEvent: function emitEvent(bvEvt) {
        var type = bvEvt.type;
        this.$emit(type, bvEvt);
        this.$root.$emit('bv::modal::' + type, bvEvt);
      },

      // UI Event Handlers
      onClickOut: function onClickOut(evt) {
        // If backdrop clicked, hide modal
        if (this.is_visible && !this.noCloseOnBackdrop) {
          this.hide('backdrop');
        }
      },
      onEsc: function onEsc(evt) {
        // If ESC pressed, hide modal
        if (evt.keyCode === KeyCodes.ESC && this.is_visible && !this.noCloseOnEsc) {
          this.hide('esc');
        }
      },
      onFocusout: function onFocusout(evt) {
        // If focus leaves modal, bring it back
        // 'focusout' Event Listener bound on content
        var content = this.$refs.content;
        if (!this.noEnforceFocus && this.is_visible && content && !content.contains(evt.relatedTarget)) {
          content.focus();
        }
      },

      // Resize Listener
      setResizeEvent: function setResizeEvent(on) {
        var _this5 = this;
  ['resize', 'orientationchange'].forEach(function (evtName) {
          if (on) {
            eventOn(window, evtName, _this5.adjustDialog);
          } else {
            eventOff(window, evtName, _this5.adjustDialog);
          }
        });
      },

      // Root Listener handlers
      showHandler: function showHandler(id, triggerEl) {
        if (id === this.id) {
          this.return_focus = triggerEl || null;
          this.show();
        }
      },
      hideHandler: function hideHandler(id) {
        if (id === this.id) {
          this.hide();
        }
      },
      modalListener: function modalListener(bvEvt) {
        // If another modal opens, close this one
        if (bvEvt.vueTarget !== this) {
          this.hide();
        }
      },

      // Focus control handlers
      focusFirst: function focusFirst() {
        // Don't try and focus if we are SSR
        if (typeof document === 'undefined') {
          return;
        }
        var content = this.$refs.content;
        var modal = this.$refs.modal;
        var activeElement = document.activeElement;
        if (activeElement && content && content.contains(activeElement)) ; else if (content) {
          if (modal) {
            modal.scrollTop = 0;
          }
          // Focus the modal content wrapper
          content.focus();
        }
      },
      returnFocusTo: function returnFocusTo() {
        // Prefer returnFocus prop over event specified return_focus value
        var el = this.returnFocus || this.return_focus || null;
        if (typeof el === 'string') {
          // CSS Selector
          el = select(el);
        }
        if (el) {
          el = el.$el || el;
          if (isVisible(el)) {
            el.focus();
          }
        }
      },

      // Utility methods
      getScrollbarWidth: function getScrollbarWidth() {
        var scrollDiv = document.createElement('div');
        scrollDiv.className = 'modal-scrollbar-measure';
        document.body.appendChild(scrollDiv);
        this.scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
        document.body.removeChild(scrollDiv);
      },
      adjustDialog: function adjustDialog() {
        if (!this.is_visible) {
          return;
        }
        var modal = this.$refs.modal;
        var isModalOverflowing = modal.scrollHeight > document.documentElement.clientHeight;
        if (!this.isBodyOverflowing && isModalOverflowing) {
          modal.style.paddingLeft = this.scrollbarWidth + 'px';
        }
        if (this.isBodyOverflowing && !isModalOverflowing) {
          modal.style.paddingRight = this.scrollbarWidth + 'px';
        }
      },
      resetAdjustments: function resetAdjustments() {
        var modal = this.$refs.modal;
        if (modal) {
          modal.style.paddingLeft = '';
          modal.style.paddingRight = '';
        }
      },
      checkScrollbar: function checkScrollbar() {
        var rect = getBCR(document.body);
        this.isBodyOverflowing = rect.left + rect.right < window.innerWidth;
      },
      setScrollbar: function setScrollbar() {
        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
          var computedStyle = window.getComputedStyle;
          var body = document.body;
          var scrollbarWidth = this.scrollbarWidth;
          // Adjust fixed content padding
          selectAll(Selector.FIXED_CONTENT).forEach(function (el) {
            var actualPadding = el.style.paddingRight;
            var calculatedPadding = computedStyle(el).paddingRight || 0;
            setAttr(el, 'data-padding-right', actualPadding);
            el.style.paddingRight = parseFloat(calculatedPadding) + scrollbarWidth + 'px';
          });
          // Adjust sticky content margin
          selectAll(Selector.STICKY_CONTENT).forEach(function (el) {
            var actualMargin = el.style.marginRight;
            var calculatedMargin = computedStyle(el).marginRight || 0;
            setAttr(el, 'data-margin-right', actualMargin);
            el.style.marginRight = parseFloat(calculatedMargin) - scrollbarWidth + 'px';
          });
          // Adjust navbar-toggler margin
          selectAll(Selector.NAVBAR_TOGGLER).forEach(function (el) {
            var actualMargin = el.style.marginRight;
            var calculatedMargin = computedStyle(el).marginRight || 0;
            setAttr(el, 'data-margin-right', actualMargin);
            el.style.marginRight = parseFloat(calculatedMargin) + scrollbarWidth + 'px';
          });
          // Adjust body padding
          var actualPadding = body.style.paddingRight;
          var calculatedPadding = computedStyle(body).paddingRight;
          setAttr(body, 'data-padding-right', actualPadding);
          body.style.paddingRight = parseFloat(calculatedPadding) + scrollbarWidth + 'px';
        }
      },
      resetScrollbar: function resetScrollbar() {
        // Restore fixed content padding
        selectAll(Selector.FIXED_CONTENT).forEach(function (el) {
          if (hasAttr(el, 'data-padding-right')) {
            el.style.paddingRight = getAttr(el, 'data-padding-right') || '';
            removeAttr(el, 'data-padding-right');
          }
        });
        // Restore sticky content and navbar-toggler margin
        selectAll(Selector.STICKY_CONTENT + ', ' + Selector.NAVBAR_TOGGLER).forEach(function (el) {
          if (hasAttr(el, 'data-margin-right')) {
            el.style.marginRight = getAttr(el, 'data-margin-right') || '';
            removeAttr(el, 'data-margin-right');
          }
        });
        // Restore body padding
        var body = document.body;
        if (hasAttr(body, 'data-padding-right')) {
          body.style.paddingRight = getAttr(body, 'data-padding-right') || '';
          removeAttr(body, 'data-padding-right');
        }
      }
    },
    created: function created() {
      // create non-reactive property
      this._observer = null;
    },
    mounted: function mounted() {
      // Measure scrollbar
      this.getScrollbarWidth();
      // Listen for events from others to either open or close ourselves
      this.listenOnRoot('bv::show::modal', this.showHandler);
      this.listenOnRoot('bv::hide::modal', this.hideHandler);
      // Listen for bv:modal::show events, and close ourselves if the opening modal not us
      this.listenOnRoot('bv::modal::show', this.modalListener);
      // Initially show modal?
      if (this.visible === true) {
        this.show();
      }
    },
    beforeDestroy: function beforeDestroy() {
      // Ensure everything is back to normal
      if (this._observer) {
        this._observer.disconnect();
        this._observer = null;
      }
      this.setResizeEvent(false);
      // Re-adjust body/navbar/fixed padding/margins (if needed)
      removeClass(document.body, 'modal-open');
      this.resetAdjustments();
      this.resetScrollbar();
    }
  };

  var listenTypes$1 = { click: true };

  var bModal$1 = {
    // eslint-disable-next-line no-shadow-restricted-names
    bind: function bind(el, binding, vnode) {
      bindTargets(vnode, binding, listenTypes$1, function (_ref) {
        var targets = _ref.targets,
            vnode = _ref.vnode;

        targets.forEach(function (target) {
          vnode.context.$root.$emit('bv::show::modal', target, vnode.elm);
        });
      });
      if (el.tagName !== 'BUTTON') {
        // If element is not a button, we add `role="button"` for accessibility
        setAttr(el, 'role', 'button');
      }
    },
    unbind: function unbind(el, binding, vnode) {
      unbindTargets(vnode, binding, listenTypes$1);
      if (el.tagName !== 'BUTTON') {
        // If element is not a button, we add `role="button"` for accessibility
        removeAttr(el, 'role', 'button');
      }
    }
  };

  var directives$1 = {
    bModal: bModal$1
  };

  var VuePlugin$r = {
    install: function install(Vue) {
      registerDirectives(Vue, directives$1);
    }
  };

  vueUse(VuePlugin$r);

  var components$q = {
    bModal: bModal
  };

  var VuePlugin$s = {
    install: function install(Vue) {
      registerComponents(Vue, components$q);
      Vue.use(VuePlugin$r);
    }
  };

  vueUse(VuePlugin$s);

  var props$A = {
    tag: {
      type: String,
      default: 'ul'
    },
    fill: {
      type: Boolean,
      default: false
    },
    justified: {
      type: Boolean,
      default: false
    },
    tabs: {
      type: Boolean,
      default: false
    },
    pills: {
      type: Boolean,
      default: false
    },
    vertical: {
      type: Boolean,
      default: false
    },
    isNavBar: {
      type: Boolean,
      default: false
    }
  };

  var bNav = {
    functional: true,
    props: props$A,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      if (props.isNavBar) {
        warn("b-nav: Prop 'is-nav-bar' is deprecated. Please use component '<b-navbar-nav>' instead.");
      }
      return h(props.tag, mergeData(data, {
        class: {
          'nav': !props.isNavBar,
          'navbar-nav': props.isNavBar,
          'nav-tabs': props.tabs && !props.isNavBar,
          'nav-pills': props.pills && !props.isNavBar,
          'flex-column': props.vertical && !props.isNavBar,
          'nav-fill': props.fill,
          'nav-justified': props.justified
        }
      }), children);
    }
  };

  var props$B = propsFactory();

  var bNavItem = {
    functional: true,
    props: props$B,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h('li', mergeData(data, {
        staticClass: 'nav-item'
      }), [h(bLink, { staticClass: 'nav-link', props: props }, children)]);
    }
  };

  var props$C = {
    tag: {
      type: String,
      default: 'span'
    }
  };

  var bNavText = {
    functional: true,
    props: props$C,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, { staticClass: 'navbar-text' }), children);
    }
  };

  var bNavForm = {
    functional: true,
    props: {
      id: {
        type: String,
        default: null
      }
    },
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(Form, mergeData(data, { attrs: { id: props.id }, props: { inline: true } }), children);
    }
  };

  var bNavItemDropdown = {
    mixins: [idMixin, dropdownMixin],
    render: function render(h) {
      var button = h('a', {
        class: this.toggleClasses,
        ref: 'toggle',
        attrs: {
          href: '#',
          id: this.safeId('_BV_button_'),
          disabled: this.disabled,
          'aria-haspopup': 'true',
          'aria-expanded': this.visible ? 'true' : 'false'
        },
        on: {
          click: this.toggle,
          keydown: this.toggle // space, enter, down
        }
      }, [this.$slots['button-content'] || this.$slots.text || h('span', { domProps: { innerHTML: this.text } })]);
      var menu = h('div', {
        class: this.menuClasses,
        ref: 'menu',
        attrs: { 'aria-labelledby': this.safeId('_BV_button_') },
        on: {
          mouseover: this.onMouseOver,
          keydown: this.onKeydown // tab, up, down, esc
        }
      }, [this.$slots.default]);
      return h('li', { attrs: { id: this.safeId() }, class: this.dropdownClasses }, [button, menu]);
    },

    computed: {
      isNav: function isNav() {
        // Signal to dropdown mixin that we are in a navbar
        return true;
      },
      dropdownClasses: function dropdownClasses() {
        return ['nav-item', 'b-nav-dropdown', 'dropdown', this.dropup ? 'dropup' : '', this.visible ? 'show' : ''];
      },
      toggleClasses: function toggleClasses() {
        return ['nav-link', this.noCaret ? '' : 'dropdown-toggle', this.disabled ? 'disabled' : '', this.extraToggleClasses ? this.extraToggleClasses : ''];
      },
      menuClasses: function menuClasses() {
        return ['dropdown-menu', this.right ? 'dropdown-menu-right' : 'dropdown-menu-left', this.visible ? 'show' : '', this.extraMenuClasses ? this.extraMenuClasses : ''];
      }
    },
    props: {
      noCaret: {
        type: Boolean,
        default: false
      },
      extraToggleClasses: {
        // Extra Toggle classes
        type: String,
        default: ''
      },
      extraMenuClasses: {
        // Extra Menu classes
        type: String,
        default: ''
      },
      role: {
        type: String,
        default: 'menu'
      }
    }
  };

  var components$r = {
    bNav: bNav,
    bNavItem: bNavItem,
    bNavText: bNavText,
    bNavForm: bNavForm,
    bNavItemDropdown: bNavItemDropdown,
    bNavItemDd: bNavItemDropdown,
    bNavDropdown: bNavItemDropdown,
    bNavDd: bNavItemDropdown
  };

  var VuePlugin$t = {
    install: function install(Vue) {
      registerComponents(Vue, components$r);
      Vue.use(VuePlugin$c);
    }
  };

  vueUse(VuePlugin$t);

  var props$D = {
    tag: {
      type: String,
      default: 'nav'
    },
    type: {
      type: String,
      default: 'light'
    },
    variant: {
      type: String
    },
    toggleable: {
      type: [Boolean, String],
      default: false
    },
    toggleBreakpoint: {
      // Deprecated.  Set toggleable to a string breakpoint
      type: String,
      default: null
    },
    fixed: {
      type: String
    },
    sticky: {
      type: Boolean,
      default: false
    }
  };

  var bNavbar = {
    functional: true,
    props: props$D,
    render: function render(h, _ref) {
      var _class;

      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var breakpoint = props.toggleBreakpoint || (props.toggleable === true ? 'sm' : props.toggleable) || 'sm';
      return h(props.tag, mergeData(data, {
        staticClass: 'navbar',
        class: (_class = {}, defineProperty(_class, 'navbar-' + props.type, Boolean(props.type)), defineProperty(_class, 'bg-' + props.variant, Boolean(props.variant)), defineProperty(_class, 'fixed-' + props.fixed, Boolean(props.fixed)), defineProperty(_class, 'sticky-top', props.sticky), defineProperty(_class, 'navbar-expand-' + breakpoint, props.toggleable !== false), _class)
      }), children);
    }
  };

  var props$E = {
    tag: {
      type: String,
      default: 'ul'
    },
    fill: {
      type: Boolean,
      default: false
    },
    justified: {
      type: Boolean,
      default: false
    }
  };

  var bNavbarNav = {
    functional: true,
    props: props$E,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      return h(props.tag, mergeData(data, {
        staticClass: 'navbar-nav',
        class: {
          'nav-fill': props.fill,
          'nav-justified': props.justified
        }
      }), children);
    }
  };

  var linkProps$3 = propsFactory();
  linkProps$3.href.default = undefined;
  linkProps$3.to.default = undefined;

  var props$F = assign(linkProps$3, {
    tag: {
      type: String,
      default: 'div'
    }
  });

  var bNavbarBrand = {
    functional: true,
    props: props$F,
    render: function render(h, _ref) {
      var props = _ref.props,
          data = _ref.data,
          children = _ref.children;

      var isLink = Boolean(props.to || props.href);
      var tag = isLink ? bLink : props.tag;

      return h(tag, mergeData(data, {
        staticClass: 'navbar-brand',
        props: isLink ? pluckProps(linkProps$3, props) : {}
      }), children);
    }
  };

  var bNavbarToggle = {
    mixins: [listenOnRootMixin],
    render: function render(h) {
      return h('button', {
        class: ['navbar-toggler'],
        attrs: {
          type: 'button',
          'aria-label': this.label,
          'aria-controls': this.target,
          'aria-expanded': this.toggleState ? 'true' : 'false'
        },
        on: { click: this.onClick }
      }, [this.$slots.default || h('span', { class: ['navbar-toggler-icon'] })]);
    },
    data: function data() {
      return {
        toggleState: false
      };
    },

    props: {
      label: {
        type: String,
        default: 'Toggle navigation'
      },
      target: {
        type: String,
        required: true
      }
    },
    methods: {
      onClick: function onClick() {
        this.$root.$emit('bv::toggle::collapse', this.target);
      },
      handleStateEvt: function handleStateEvt(id, state) {
        if (id === this.target) {
          this.toggleState = state;
        }
      }
    },
    created: function created() {
      this.listenOnRoot('bv::collapse::state', this.handleStateEvt);
    }
  };

  var components$s = {
    bNavbar: bNavbar,
    bNavbarNav: bNavbarNav,
    bNavbarBrand: bNavbarBrand,
    bNavbarToggle: bNavbarToggle,
    bNavToggle: bNavbarToggle
  };

  var VuePlugin$u = {
    install: function install(Vue) {
      registerComponents(Vue, components$s);
      Vue.use(VuePlugin$t);
      Vue.use(VuePlugin$b);
      Vue.use(VuePlugin$c);
    }
  };

  vueUse(VuePlugin$u);

  /**
   * @param {number} length
   * @return {Array}
   */
  var range = (function (length) {
    return Array.apply(null, { length: length });
  });

  /*
   * Comon props, computed, data, render function, and methods for b-pagination and b-pagination-nav
   */

  // Make an array of N to N+X
  function makePageArray(startNum, numPages) {
    return range(numPages).map(function (value, index) {
      return { number: index + startNum, className: null };
    });
  }

  // Threshold of limit size when we start/stop showing ellipsis
  var ELLIPSIS_THRESHOLD = 3;

  // Props object
  var props$G = {
    disabled: {
      type: Boolean,
      default: false
    },
    value: {
      type: Number,
      default: 1
    },
    limit: {
      type: Number,
      default: 5
    },
    size: {
      type: String,
      default: 'md'
    },
    align: {
      type: String,
      default: 'left'
    },
    hideGotoEndButtons: {
      type: Boolean,
      default: false
    },
    ariaLabel: {
      type: String,
      default: 'Pagination'
    },
    labelFirstPage: {
      type: String,
      default: 'Goto first page'
    },
    firstText: {
      type: String,
      default: '&laquo;'
    },
    labelPrevPage: {
      type: String,
      default: 'Goto previous page'
    },
    prevText: {
      type: String,
      default: '&lsaquo;'
    },
    labelNextPage: {
      type: String,
      default: 'Goto next page'
    },
    nextText: {
      type: String,
      default: '&rsaquo;'
    },
    labelLastPage: {
      type: String,
      default: 'Goto last page'
    },
    lastText: {
      type: String,
      default: '&raquo;'
    },
    labelPage: {
      type: String,
      default: 'Goto page'
    },
    hideEllipsis: {
      type: Boolean,
      default: false
    },
    ellipsisText: {
      type: String,
      default: '&hellip;'
    }
  };

  var paginationMixin = {
    components: { bLink: bLink },
    data: function data() {
      return {
        showFirstDots: false,
        showLastDots: false,
        currentPage: this.value
      };
    },

    props: props$G,
    render: function render(h) {
      var _this = this;

      var buttons = [];

      // Factory function for prev/next/first/last buttons
      var makeEndBtns = function makeEndBtns(linkTo, ariaLabel, btnText, pageTest) {
        var button = void 0;
        pageTest = pageTest || linkTo; // Page # to test against to disable
        if (_this.disabled || _this.isActive(pageTest)) {
          button = h('li', {
            class: ['page-item', 'disabled'],
            attrs: { role: 'none presentation', 'aria-hidden': 'true' }
          }, [h('span', {
            class: ['page-link'],
            domProps: { innerHTML: btnText }
          })]);
        } else {
          button = h('li', {
            class: ['page-item'],
            attrs: { role: 'none presentation' }
          }, [h('b-link', {
            class: ['page-link'],
            props: _this.linkProps(linkTo),
            attrs: {
              role: 'menuitem',
              tabindex: '-1',
              'aria-label': ariaLabel,
              'aria-controls': _this.ariaControls || null
            },
            on: {
              click: function click(evt) {
                _this.onClick(linkTo, evt);
              },
              keydown: function keydown(evt) {
                // Links don't normally respond to SPACE, so we add that functionality
                if (evt.keyCode === KeyCodes.SPACE) {
                  evt.preventDefault();
                  _this.onClick(linkTo, evt);
                }
              }
            }
          }, [h('span', {
            attrs: { 'aria-hidden': 'true' },
            domProps: { innerHTML: btnText }
          })])]);
        }
        return button;
      };

      // Ellipsis factory
      var makeEllipsis = function makeEllipsis() {
        return h('li', {
          class: ['page-item', 'disabled', 'd-none', 'd-sm-flex'],
          attrs: { role: 'separator' }
        }, [h('span', {
          class: ['page-link'],
          domProps: { innerHTML: _this.ellipsisText }
        })]);
      };

      // Goto First Page button
      buttons.push(this.hideGotoEndButtons ? h(false) : makeEndBtns(1, this.labelFirstPage, this.firstText));

      // Goto Previous page button
      buttons.push(makeEndBtns(this.currentPage - 1, this.labelPrevPage, this.prevText, 1));

      // First Ellipsis Bookend
      buttons.push(this.showFirstDots ? makeEllipsis() : h(false));

      // Individual Page links
      this.pageList.forEach(function (page) {
        var inner = void 0;
        var pageNum = _this.makePage(page.number);
        if (_this.disabled) {
          inner = h('span', {
            class: ['page-link'],
            domProps: { innerHTML: pageNum }
          });
        } else {
          var active = _this.isActive(page.number);
          inner = h('b-link', {
            class: _this.pageLinkClasses(page),
            props: _this.linkProps(page.number),
            attrs: {
              role: 'menuitemradio',
              tabindex: active ? '0' : '-1',
              'aria-controls': _this.ariaControls || null,
              'aria-label': _this.labelPage + ' ' + page.number,
              'aria-checked': active ? 'true' : 'false',
              'aria-posinset': page.number,
              'aria-setsize': _this.numberOfPages
            },
            domProps: { innerHTML: pageNum },
            on: {
              click: function click(evt) {
                _this.onClick(page.number, evt);
              },
              keydown: function keydown(evt) {
                if (evt.keyCode === KeyCodes.SPACE) {
                  evt.preventDefault();
                  _this.onClick(page.number, evt);
                }
              }
            }
          });
        }
        buttons.push(h('li', {
          key: page.number,
          class: _this.pageItemClasses(page),
          attrs: { role: 'none presentation' }
        }, [inner]));
      });

      // Last Ellipsis Bookend
      buttons.push(this.showLastDots ? makeEllipsis() : h(false));

      // Goto Next page button
      buttons.push(makeEndBtns(this.currentPage + 1, this.labelNextPage, this.nextText, this.numberOfPages));

      // Goto Last Page button
      buttons.push(this.hideGotoEndButtons ? h(false) : makeEndBtns(this.numberOfPages, this.labelLastPage, this.lastText));

      // Assemble the paginatiom buttons
      var pagination = h('ul', {
        ref: 'ul',
        class: ['pagination', 'b-pagination', this.btnSize, this.alignment],
        attrs: {
          role: 'menubar',
          'aria-disabled': this.disabled ? 'true' : 'false',
          'aria-label': this.ariaLabel || null
        },
        on: {
          keydown: function keydown(evt) {
            var keyCode = evt.keyCode;
            var shift = evt.shiftKey;
            if (keyCode === KeyCodes.LEFT) {
              evt.preventDefault();
              shift ? _this.focusFirst() : _this.focusPrev();
            } else if (keyCode === KeyCodes.RIGHT) {
              evt.preventDefault();
              shift ? _this.focusLast() : _this.focusNext();
            }
          }
        }
      }, buttons);

      // if we are pagination-nav, wrap in '<nav>' wrapper
      return this.isNav ? h('nav', {}, [pagination]) : pagination;
    },

    watch: {
      currentPage: function currentPage(newPage, oldPage) {
        if (newPage !== oldPage) {
          this.$emit('input', newPage);
        }
      },
      value: function value(newValue, oldValue) {
        if (newValue !== oldValue) {
          this.currentPage = newValue;
        }
      }
    },
    computed: {
      btnSize: function btnSize() {
        return this.size ? 'pagination-' + this.size : '';
      },
      alignment: function alignment() {
        if (this.align === 'center') {
          return 'justify-content-center';
        } else if (this.align === 'end' || this.align === 'right') {
          return 'justify-content-end';
        }
        return '';
      },
      pageList: function pageList() {
        // Sanity checks
        if (this.currentPage > this.numberOfPages) {
          this.currentPage = this.numberOfPages;
        } else if (this.currentPage < 1) {
          this.currentPage = 1;
        }
        // - Hide first ellipsis marker
        this.showFirstDots = false;
        // - Hide last ellipsis marker
        this.showLastDots = false;
        var numLinks = this.limit;
        var startNum = 1;
        if (this.numberOfPages <= this.limit) {
          // Special Case: Less pages available than the limit of displayed pages
          numLinks = this.numberOfPages;
        } else if (this.currentPage < this.limit - 1 && this.limit > ELLIPSIS_THRESHOLD) {
          // We are near the beginning of the page list
          if (!this.hideEllipsis) {
            numLinks = this.limit - 1;
            this.showLastDots = true;
          }
        } else if (this.numberOfPages - this.currentPage + 2 < this.limit && this.limit > ELLIPSIS_THRESHOLD) {
          // We are near the end of the list
          if (!this.hideEllipsis) {
            this.showFirstDots = true;
            numLinks = this.limit - 1;
          }
          startNum = this.numberOfPages - numLinks + 1;
        } else {
          // We are somewhere in the middle of the page list
          if (this.limit > ELLIPSIS_THRESHOLD && !this.hideEllipsis) {
            this.showFirstDots = true;
            this.showLastDots = true;
            numLinks = this.limit - 2;
          }
          startNum = this.currentPage - Math.floor(numLinks / 2);
        }
        // Sanity checks
        if (startNum < 1) {
          startNum = 1;
        } else if (startNum > this.numberOfPages - numLinks) {
          startNum = this.numberOfPages - numLinks + 1;
        }
        // Generate list of page numbers
        var pages = makePageArray(startNum, numLinks);
        // We limit to a total of 3 page buttons on small screens
        // Ellipsis will also be hidden on small screens
        if (pages.length > 3) {
          var idx = this.currentPage - startNum;
          if (idx === 0) {
            // Keep leftmost 3 buttons visible
            for (var i = 3; i < pages.length; i++) {
              pages[i].className = 'd-none d-sm-flex';
            }
          } else if (idx === pages.length - 1) {
            // Keep rightmost 3 buttons visible
            for (var _i = 0; _i < pages.length - 3; _i++) {
              pages[_i].className = 'd-none d-sm-flex';
            }
          } else {
            // hide left button(s)
            for (var _i2 = 0; _i2 < idx - 1; _i2++) {
              pages[_i2].className = 'd-none d-sm-flex';
            }
            // hide right button(s)
            for (var _i3 = pages.length - 1; _i3 > idx + 1; _i3--) {
              pages[_i3].className = 'd-none d-sm-flex';
            }
          }
        }
        return pages;
      }
    },
    methods: {
      isActive: function isActive(pagenum) {
        return pagenum === this.currentPage;
      },
      pageItemClasses: function pageItemClasses(page) {
        return ['page-item', this.disabled ? 'disabled' : '', this.isActive(page.number) ? 'active' : '', page.className];
      },
      pageLinkClasses: function pageLinkClasses(page) {
        return ['page-link', this.disabled ? 'disabled' : '',
        // Interim workaround to get better focus styling of active button
        // See https://github.com/twbs/bootstrap/issues/24838
        this.isActive(page.number) ? 'btn-primary' : ''];
      },
      getButtons: function getButtons() {
        // Return only buttons that are visible
        return selectAll('a.page-link', this.$el).filter(function (btn) {
          return isVisible(btn);
        });
      },
      setBtnFocus: function setBtnFocus(btn) {
        this.$nextTick(function () {
          btn.focus();
        });
      },
      focusCurrent: function focusCurrent() {
        var _this2 = this;

        var btn = this.getButtons().find(function (el) {
          return parseInt(getAttr(el, 'aria-posinset'), 10) === _this2.currentPage;
        });
        if (btn && btn.focus) {
          this.setBtnFocus(btn);
        } else {
          // Fallback if current page is not in button list
          this.focusFirst();
        }
      },
      focusFirst: function focusFirst() {
        var btn = this.getButtons().find(function (el) {
          return !isDisabled(el);
        });
        if (btn && btn.focus && btn !== document.activeElement) {
          this.setBtnFocus(btn);
        }
      },
      focusLast: function focusLast() {
        var btn = this.getButtons().reverse().find(function (el) {
          return !isDisabled(el);
        });
        if (btn && btn.focus && btn !== document.activeElement) {
          this.setBtnFocus(btn);
        }
      },
      focusPrev: function focusPrev() {
        var buttons = this.getButtons();
        var idx = buttons.indexOf(document.activeElement);
        if (idx > 0 && !isDisabled(buttons[idx - 1]) && buttons[idx - 1].focus) {
          this.setBtnFocus(buttons[idx - 1]);
        }
      },
      focusNext: function focusNext() {
        var buttons = this.getButtons();
        var idx = buttons.indexOf(document.activeElement);
        var cnt = buttons.length - 1;
        if (idx < cnt && !isDisabled(buttons[idx + 1]) && buttons[idx + 1].focus) {
          this.setBtnFocus(buttons[idx + 1]);
        }
      }
    }
  };

  var props$H = {
    perPage: {
      type: Number,
      default: 20
    },
    totalRows: {
      type: Number,
      default: 20
    },
    ariaControls: {
      type: String,
      default: null
    }

    // Our render function is brought in from the pagination mixin
  };var bPagination = {
    mixins: [paginationMixin],
    props: props$H,
    computed: {
      numberOfPages: function numberOfPages() {
        var result = Math.ceil(this.totalRows / this.perPage);
        return result < 1 ? 1 : result;
      }
    },
    methods: {
      // These methods are used by the render function
      onClick: function onClick(num, evt) {
        var _this = this;

        // Handle edge cases where number of pages has changed (i.e. if perPage changes)
        if (num > this.numberOfPages) {
          num = this.numberOfPages;
        } else if (num < 1) {
          num = 1;
        }
        this.currentPage = num;
        this.$nextTick(function () {
          // Keep the current button focused if possible
          var target = evt.target;
          if (isVisible(target) && _this.$el.contains(target) && target.focus) {
            target.focus();
          } else {
            _this.focusCurrent();
          }
        });
        this.$emit('change', this.currentPage);
      },
      makePage: function makePage(pagenum) {
        return pagenum;
      },
      linkProps: function linkProps(pagenum) {
        return { href: '#' };
      }
    }
  };

  var components$t = {
    bPagination: bPagination
  };

  var VuePlugin$v = {
    install: function install(Vue) {
      registerComponents(Vue, components$t);
    }
  };

  vueUse(VuePlugin$v);

  // Props needed for router links
  var routerProps = pickLinkProps('activeClass', 'exactActiveClass', 'append', 'exact', 'replace', 'target', 'rel');

  // Props object
  var props$I = assign(
  // pagination-nav specific props
  {
    numberOfPages: {
      type: Number,
      default: 1
    },
    baseUrl: {
      type: String,
      default: '/'
    },
    useRouter: {
      type: Boolean,
      default: false
    },
    linkGen: {
      type: Function,
      default: null
    },
    pageGen: {
      type: Function,
      default: null
    }
  },
  // Router specific props
  routerProps);
  // Our render function is brought in via the pagination mixin
  var bPaginationNav = {
    mixins: [paginationMixin],
    props: props$I,
    computed: {
      // Used by render function to trigger wraping in '<nav>' element
      isNav: function isNav() {
        return true;
      }
    },
    methods: {
      onClick: function onClick(pageNum, evt) {
        this.currentPage = pageNum;
      },
      makePage: function makePage(pagenum) {
        if (this.pageGen && typeof this.pageGen === 'function') {
          return this.pageGen(pagenum);
        }
        return pagenum;
      },
      makeLink: function makeLink(pagenum) {
        if (this.linkGen && typeof this.linkGen === 'function') {
          return this.linkGen(pagenum);
        }
        var link = '' + this.baseUrl + pagenum;
        return this.useRouter ? { path: link } : link;
      },
      linkProps: function linkProps(pagenum) {
        var link = this.makeLink(pagenum);
        var props = {
          href: typeof link === 'string' ? link : void 0,
          target: this.target || null,
          rel: this.rel || null,
          disabled: this.disabled
        };
        if (this.useRouter || (typeof link === 'undefined' ? 'undefined' : _typeof(link)) === 'object') {
          props = assign(props, {
            to: link,
            exact: this.exact,
            activeClass: this.activeClass,
            exactActiveClass: this.exactActiveClass,
            append: this.append,
            replace: this.replace
          });
        }
        return props;
      }
    }
  };

  var components$u = {
    bPaginationNav: bPaginationNav
  };

  var VuePlugin$w = {
    install: function install(Vue) {
      registerComponents(Vue, components$u);
    }
  };

  vueUse(VuePlugin$w);

  var NAME = 'tooltip';
  var CLASS_PREFIX = 'bs-tooltip';
  var BSCLS_PREFIX_REGEX = new RegExp('\\b' + CLASS_PREFIX + '\\S+', 'g');

  var TRANSITION_DURATION = 150;

  // Modal $root hidden event
  var MODAL_CLOSE_EVENT = 'bv::modal::hidden';
  // Modal container for appending tip/popover
  var MODAL_CLASS = '.modal-content';

  var AttachmentMap$1 = {
    AUTO: 'auto',
    TOP: 'top',
    RIGHT: 'right',
    BOTTOM: 'bottom',
    LEFT: 'left',
    TOPLEFT: 'top',
    TOPRIGHT: 'top',
    RIGHTTOP: 'right',
    RIGHTBOTTOM: 'right',
    BOTTOMLEFT: 'bottom',
    BOTTOMRIGHT: 'bottom',
    LEFTTOP: 'left',
    LEFTBOTTOM: 'left'
  };

  var OffsetMap = {
    AUTO: 0,
    TOPLEFT: -1,
    TOP: 0,
    TOPRIGHT: +1,
    RIGHTTOP: -1,
    RIGHT: 0,
    RIGHTBOTTOM: +1,
    BOTTOMLEFT: -1,
    BOTTOM: 0,
    BOTTOMRIGHT: +1,
    LEFTTOP: -1,
    LEFT: 0,
    LEFTBOTTOM: +1
  };

  var HoverState = {
    SHOW: 'show',
    OUT: 'out'
  };

  var ClassName = {
    FADE: 'fade',
    SHOW: 'show'
  };

  var Selector$1 = {
    TOOLTIP: '.tooltip',
    TOOLTIP_INNER: '.tooltip-inner',
    ARROW: '.arrow'

    // ESLINT: Not used
    // const Trigger = {
    //   HOVER: 'hover',
    //   FOCUS: 'focus',
    //   CLICK: 'click',
    //   BLUR: 'blur',
    //   MANUAL: 'manual'
    // }

  };var Defaults$1 = {
    animation: true,
    template: '<div class="tooltip" role="tooltip">' + '<div class="arrow"></div>' + '<div class="tooltip-inner"></div>' + '</div>',
    trigger: 'hover focus',
    title: '',
    delay: 0,
    html: false,
    placement: 'top',
    offset: 0,
    arrowPadding: 6,
    container: false,
    fallbackPlacement: 'flip',
    callbacks: {},
    boundary: 'scrollParent'

    // Transition Event names
  };var TransitionEndEvents$1 = {
    WebkitTransition: ['webkitTransitionEnd'],
    MozTransition: ['transitionend'],
    OTransition: ['otransitionend', 'oTransitionEnd'],
    transition: ['transitionend']

    // Client Side Tip ID counter for aria-describedby attribute
    // Could use Alex's uid generator util
    // Each tooltip requires a unique client side ID
  };var NEXTID = 1;
  /* istanbul ignore next */
  function generateId(name) {
    return '__BV_' + name + '_' + NEXTID++ + '__';
  }

  /*
   * ToolTip Class definition
   */
  /* istanbul ignore next: difficult to test in Jest/JSDOM environment */

  var ToolTip = function () {
    // Main constructor
    function ToolTip(element, config, $root) {
      classCallCheck(this, ToolTip);

      // New tooltip object
      this.$isEnabled = true;
      this.$fadeTimeout = null;
      this.$hoverTimeout = null;
      this.$visibleInterval = null;
      this.$hoverState = '';
      this.$activeTrigger = {};
      this.$popper = null;
      this.$element = element;
      this.$tip = null;
      this.$id = generateId(this.constructor.NAME);
      this.$root = $root || null;
      this.$routeWatcher = null;
      // We use a bound version of the following handlers for root/modal listeners to maintain the 'this' context
      this.$forceHide = this.forceHide.bind(this);
      this.$doHide = this.doHide.bind(this);
      this.$doShow = this.doShow.bind(this);
      this.$doDisable = this.doDisable.bind(this);
      this.$doEnable = this.doEnable.bind(this);
      // Set the configuration
      this.updateConfig(config);
    }

    // NOTE: Overridden by PopOver class


    createClass(ToolTip, [{
      key: 'updateConfig',


      // Update config
      value: function updateConfig(config) {
        // Merge config into defaults. We use "this" here because PopOver overrides Default
        var updatedConfig = assign({}, this.constructor.Default, config);

        // Sanitize delay
        if (config.delay && typeof config.delay === 'number') {
          updatedConfig.delay = {
            show: config.delay,
            hide: config.delay
          };
        }

        // Title for tooltip and popover
        if (config.title && typeof config.title === 'number') {
          updatedConfig.title = config.title.toString();
        }

        // Content only for popover
        if (config.content && typeof config.content === 'number') {
          updatedConfig.content = config.content.toString();
        }

        // Hide element original title if needed
        this.fixTitle();
        // Update the config
        this.$config = updatedConfig;
        // Stop/Restart listening
        this.unListen();
        this.listen();
      }

      // Destroy this instance

    }, {
      key: 'destroy',
      value: function destroy() {
        // Stop listening to trigger events
        this.unListen();
        // Disable while open listeners/watchers
        this.setWhileOpenListeners(false);
        // Clear any timeouts
        clearTimeout(this.$hoverTimeout);
        this.$hoverTimeout = null;
        clearTimeout(this.$fadeTimeout);
        this.$fadeTimeout = null;
        // Remove popper
        if (this.$popper) {
          this.$popper.destroy();
        }
        this.$popper = null;
        // Remove tip from document
        if (this.$tip && this.$tip.parentElement) {
          this.$tip.parentElement.removeChild(this.$tip);
        }
        this.$tip = null;
        // Null out other properties
        this.$id = null;
        this.$isEnabled = null;
        this.$root = null;
        this.$element = null;
        this.$config = null;
        this.$hoverState = null;
        this.$activeTrigger = null;
        this.$forceHide = null;
        this.$doHide = null;
        this.$doShow = null;
        this.$doDisable = null;
        this.$doEnable = null;
      }
    }, {
      key: 'enable',
      value: function enable() {
        // Create a non-cancelable BvEvent
        var enabledEvt = new BvEvent('enabled', {
          cancelable: false,
          target: this.$element,
          relatedTarget: null
        });
        this.$isEnabled = true;
        this.emitEvent(enabledEvt);
      }
    }, {
      key: 'disable',
      value: function disable() {
        // Create a non-cancelable BvEvent
        var disabledEvt = new BvEvent('disabled', {
          cancelable: false,
          target: this.$element,
          relatedTarget: null
        });
        this.$isEnabled = false;
        this.emitEvent(disabledEvt);
      }

      // Click toggler

    }, {
      key: 'toggle',
      value: function toggle(event) {
        if (!this.$isEnabled) {
          return;
        }
        if (event) {
          this.$activeTrigger.click = !this.$activeTrigger.click;

          if (this.isWithActiveTrigger()) {
            this.enter(null);
          } else {
            this.leave(null);
          }
        } else {
          if (hasClass(this.getTipElement(), ClassName.SHOW)) {
            this.leave(null);
          } else {
            this.enter(null);
          }
        }
      }

      // Show tooltip

    }, {
      key: 'show',
      value: function show() {
        var _this = this;

        if (!document.body.contains(this.$element) || !isVisible(this.$element)) {
          // If trigger element isn't in the DOM or is not visible
          return;
        }
        // Build tooltip element (also sets this.$tip)
        var tip = this.getTipElement();
        this.fixTitle();
        this.setContent(tip);
        if (!this.isWithContent(tip)) {
          // if No content, don't bother showing
          this.$tip = null;
          return;
        }

        // Set ID on tip and aria-describedby on element
        setAttr(tip, 'id', this.$id);
        this.addAriaDescribedby();

        // Set animation on or off
        if (this.$config.animation) {
          addClass(tip, ClassName.FADE);
        } else {
          removeClass(tip, ClassName.FADE);
        }

        var placement = this.getPlacement();
        var attachment = this.constructor.getAttachment(placement);
        this.addAttachmentClass(attachment);

        // Create a cancelable BvEvent
        var showEvt = new BvEvent('show', {
          cancelable: true,
          target: this.$element,
          relatedTarget: tip
        });
        this.emitEvent(showEvt);
        if (showEvt.defaultPrevented) {
          // Don't show if event cancelled
          this.$tip = null;
          return;
        }

        // Insert tooltip if needed
        var container = this.getContainer();
        if (!document.body.contains(tip)) {
          container.appendChild(tip);
        }

        // Refresh popper
        this.removePopper();
        this.$popper = new Popper(this.$element, tip, this.getPopperConfig(placement, tip));

        // Transitionend Callback
        var complete = function complete() {
          if (_this.$config.animation) {
            _this.fixTransition(tip);
          }
          var prevHoverState = _this.$hoverState;
          _this.$hoverState = null;
          if (prevHoverState === HoverState.OUT) {
            _this.leave(null);
          }
          // Create a non-cancelable BvEvent
          var shownEvt = new BvEvent('shown', {
            cancelable: false,
            target: _this.$element,
            relatedTarget: tip
          });
          _this.emitEvent(shownEvt);
        };

        // Enable while open listeners/watchers
        this.setWhileOpenListeners(true);

        // Show tip
        addClass(tip, ClassName.SHOW);

        // Start the transition/animation
        this.transitionOnce(tip, complete);
      }

      // handler for periodic visibility check

    }, {
      key: 'visibleCheck',
      value: function visibleCheck(on) {
        var _this2 = this;

        clearInterval(this.$visibleInterval);
        this.$visibleInterval = null;
        if (on) {
          this.$visibleInterval = setInterval(function () {
            var tip = _this2.getTipElement();
            if (tip && !isVisible(_this2.$element) && hasClass(tip, ClassName.SHOW)) {
              // Element is no longer visible, so force-hide the tooltip
              _this2.forceHide();
            }
          }, 100);
        }
      }
    }, {
      key: 'setWhileOpenListeners',
      value: function setWhileOpenListeners(on) {
        // Modal close events
        this.setModalListener(on);
        // Periodic $element visibility check
        // For handling when tip is in <keepalive>, tabs, carousel, etc
        this.visibleCheck(on);
        // Route change events
        this.setRouteWatcher(on);
        // Ontouch start listeners
        this.setOnTouchStartListener(on);
        if (on && /(focus|blur)/.test(this.$config.trigger)) {
          // If focus moves between trigger element and tip container, dont close
          eventOn(this.$tip, 'focusout', this);
        } else {
          eventOff(this.$tip, 'focusout', this);
        }
      }

      // force hide of tip (internal method)

    }, {
      key: 'forceHide',
      value: function forceHide() {
        if (!this.$tip || !hasClass(this.$tip, ClassName.SHOW)) {
          return;
        }
        // Disable while open listeners/watchers
        this.setWhileOpenListeners(false);
        // Clear any hover enter/leave event
        clearTimeout(this.$hoverTimeout);
        this.$hoverTimeout = null;
        this.$hoverState = '';
        // Hide the tip
        this.hide(null, true);
      }

      // Hide tooltip

    }, {
      key: 'hide',
      value: function hide(callback, force) {
        var _this3 = this;

        var tip = this.$tip;
        if (!tip) {
          return;
        }

        // Create a canelable BvEvent
        var hideEvt = new BvEvent('hide', {
          // We disable cancelling if force is true
          cancelable: !force,
          target: this.$element,
          relatedTarget: tip
        });
        this.emitEvent(hideEvt);
        if (hideEvt.defaultPrevented) {
          // Don't hide if event cancelled
          return;
        }

        // Transitionend Callback
        /* istanbul ignore next */
        var complete = function complete() {
          if (_this3.$hoverState !== HoverState.SHOW && tip.parentNode) {
            // Remove tip from dom, and force recompile on next show
            tip.parentNode.removeChild(tip);
            _this3.removeAriaDescribedby();
            _this3.removePopper();
            _this3.$tip = null;
          }
          if (callback) {
            callback();
          }
          // Create a non-cancelable BvEvent
          var hiddenEvt = new BvEvent('hidden', {
            cancelable: false,
            target: _this3.$element,
            relatedTarget: null
          });
          _this3.emitEvent(hiddenEvt);
        };

        // Disable while open listeners/watchers
        this.setWhileOpenListeners(false);

        // If forced close, disable animation
        if (force) {
          removeClass(tip, ClassName.FADE);
        }
        // Hide tip
        removeClass(tip, ClassName.SHOW);

        this.$activeTrigger.click = false;
        this.$activeTrigger.focus = false;
        this.$activeTrigger.hover = false;

        // Start the hide transition
        this.transitionOnce(tip, complete);

        this.$hoverState = '';
      }
    }, {
      key: 'emitEvent',
      value: function emitEvent(evt) {
        var evtName = evt.type;
        if (this.$root && this.$root.$emit) {
          // Emit an event on $root
          this.$root.$emit('bv::' + this.constructor.NAME + '::' + evtName, evt);
        }
        var callbacks = this.$config.callbacks || {};
        if (typeof callbacks[evtName] === 'function') {
          callbacks[evtName](evt);
        }
      }
    }, {
      key: 'getContainer',
      value: function getContainer() {
        var container = this.$config.container;
        var body = document.body;
        // If we are in a modal, we append to the modal instead of body, unless a container is specified
        return container === false ? closest(MODAL_CLASS, this.$element) || body : select(container, body) || body;
      }

      // Will be overritten by popover if needed

    }, {
      key: 'addAriaDescribedby',
      value: function addAriaDescribedby() {
        // Add aria-describedby on trigger element, without removing any other IDs
        var desc = getAttr(this.$element, 'aria-describedby') || '';
        desc = desc.split(/\s+/).concat(this.$id).join(' ').trim();
        setAttr(this.$element, 'aria-describedby', desc);
      }

      // Will be overritten by popover if needed

    }, {
      key: 'removeAriaDescribedby',
      value: function removeAriaDescribedby() {
        var _this4 = this;

        var desc = getAttr(this.$element, 'aria-describedby') || '';
        desc = desc.split(/\s+/).filter(function (d) {
          return d !== _this4.$id;
        }).join(' ').trim();
        if (desc) {
          setAttr(this.$element, 'aria-describedby', desc);
        } else {
          removeAttr(this.$element, 'aria-describedby');
        }
      }
    }, {
      key: 'removePopper',
      value: function removePopper() {
        if (this.$popper) {
          this.$popper.destroy();
        }
        this.$popper = null;
      }

      /* istanbul ignore next */

    }, {
      key: 'transitionOnce',
      value: function transitionOnce(tip, complete) {
        var _this5 = this;

        var transEvents = this.getTransitionEndEvents();
        var called = false;
        clearTimeout(this.$fadeTimeout);
        this.$fadeTimeout = null;
        var fnOnce = function fnOnce() {
          if (called) {
            return;
          }
          called = true;
          clearTimeout(_this5.$fadeTimeout);
          _this5.$fadeTimeout = null;
          transEvents.forEach(function (evtName) {
            eventOff(tip, evtName, fnOnce);
          });
          // Call complete callback
          complete();
        };
        if (hasClass(tip, ClassName.FADE)) {
          transEvents.forEach(function (evtName) {
            eventOn(tip, evtName, fnOnce);
          });
          // Fallback to setTimeout
          this.$fadeTimeout = setTimeout(fnOnce, TRANSITION_DURATION);
        } else {
          fnOnce();
        }
      }

      // What transitionend event(s) to use? (returns array of event names)

    }, {
      key: 'getTransitionEndEvents',
      value: function getTransitionEndEvents() {
        for (var name in TransitionEndEvents$1) {
          if (this.$element.style[name] !== undefined) {
            return TransitionEndEvents$1[name];
          }
        }
        // fallback
        return [];
      }
    }, {
      key: 'update',
      value: function update() {
        if (this.$popper !== null) {
          this.$popper.scheduleUpdate();
        }
      }

      // NOTE: Overridden by PopOver class

    }, {
      key: 'isWithContent',
      value: function isWithContent(tip) {
        tip = tip || this.$tip;
        if (!tip) {
          return false;
        }
        return Boolean((select(Selector$1.TOOLTIP_INNER, tip) || {}).innerHTML);
      }

      // NOTE: Overridden by PopOver class

    }, {
      key: 'addAttachmentClass',
      value: function addAttachmentClass(attachment) {
        addClass(this.getTipElement(), CLASS_PREFIX + '-' + attachment);
      }
    }, {
      key: 'getTipElement',
      value: function getTipElement() {
        if (!this.$tip) {
          // Try and compile user supplied template, or fallback to default template
          this.$tip = this.compileTemplate(this.$config.template) || this.compileTemplate(this.constructor.Default.template);
        }
        // Add tab index so tip can be focused, and to allow it to be set as relatedTargt in focusin/out events
        this.$tip.tabIndex = -1;
        return this.$tip;
      }
    }, {
      key: 'compileTemplate',
      value: function compileTemplate(html) {
        if (!html || typeof html !== 'string') {
          return null;
        }
        var div = document.createElement('div');
        div.innerHTML = html.trim();
        var node = div.firstElementChild ? div.removeChild(div.firstElementChild) : null;
        div = null;
        return node;
      }

      // NOTE: Overridden by PopOver class

    }, {
      key: 'setContent',
      value: function setContent(tip) {
        this.setElementContent(select(Selector$1.TOOLTIP_INNER, tip), this.getTitle());
        removeClass(tip, ClassName.FADE);
        removeClass(tip, ClassName.SHOW);
      }
    }, {
      key: 'setElementContent',
      value: function setElementContent(container, content) {
        if (!container) {
          // If container element doesn't exist, just return
          return;
        }
        var allowHtml = this.$config.html;
        if ((typeof content === 'undefined' ? 'undefined' : _typeof(content)) === 'object' && content.nodeType) {
          // content is a DOM node
          if (allowHtml) {
            if (content.parentElement !== container) {
              container.innerHtml = '';
              container.appendChild(content);
            }
          } else {
            container.innerText = content.innerText;
          }
        } else {
          // We have a plain HTML string or Text
          container[allowHtml ? 'innerHTML' : 'innerText'] = content;
        }
      }

      // NOTE: Overridden by PopOver class

    }, {
      key: 'getTitle',
      value: function getTitle() {
        var title = this.$config.title || '';
        if (typeof title === 'function') {
          // Call the function to get the title value
          title = title(this.$element);
        }
        if ((typeof title === 'undefined' ? 'undefined' : _typeof(title)) === 'object' && title.nodeType && !title.innerHTML.trim()) {
          // We have a DOM node, but without inner content, so just return empty string
          title = '';
        }
        if (typeof title === 'string') {
          title = title.trim();
        }
        if (!title) {
          // If an explicit title is not given, try element's title atributes
          title = getAttr(this.$element, 'title') || getAttr(this.$element, 'data-original-title') || '';
          title = title.trim();
        }

        return title;
      }
    }, {
      key: 'listen',
      value: function listen() {
        var _this6 = this;

        var triggers = this.$config.trigger.trim().split(/\s+/);
        var el = this.$element;

        // Listen for global show/hide events
        this.setRootListener(true);

        // Using 'this' as the handler will get automagically directed to this.handleEvent
        // And maintain our binding to 'this'
        triggers.forEach(function (trigger) {
          if (trigger === 'click') {
            eventOn(el, 'click', _this6);
          } else if (trigger === 'focus') {
            eventOn(el, 'focusin', _this6);
            eventOn(el, 'focusout', _this6);
          } else if (trigger === 'blur') {
            // Used to close $tip when element looses focus
            eventOn(el, 'focusout', _this6);
          } else if (trigger === 'hover') {
            eventOn(el, 'mouseenter', _this6);
            eventOn(el, 'mouseleave', _this6);
          }
        }, this);
      }
    }, {
      key: 'unListen',
      value: function unListen() {
        var _this7 = this;

        var events = ['click', 'focusin', 'focusout', 'mouseenter', 'mouseleave'];
        // Using "this" as the handler will get automagically directed to this.handleEvent
        events.forEach(function (evt) {
          eventOff(_this7.$element, evt, _this7);
        }, this);

        // Stop listening for global show/hide/enable/disable events
        this.setRootListener(false);
      }
    }, {
      key: 'handleEvent',
      value: function handleEvent(e) {
        // This special method allows us to use "this" as the event handlers
        if (isDisabled(this.$element)) {
          // If disabled, don't do anything. Note: if tip is shown before element gets
          // disabled, then tip not close until no longer disabled or forcefully closed.
          return;
        }
        if (!this.$isEnabled) {
          // If not enable
          return;
        }
        var type = e.type;
        var target = e.target;
        var relatedTarget = e.relatedTarget;
        var $element = this.$element;
        var $tip = this.$tip;
        if (type === 'click') {
          this.toggle(e);
        } else if (type === 'focusin' || type === 'mouseenter') {
          this.enter(e);
        } else if (type === 'focusout') {
          // target is the element which is loosing focus
          // And relatedTarget is the element gaining focus
          if ($tip && $element && $element.contains(target) && $tip.contains(relatedTarget)) {
            // If focus moves from $element to $tip, don't trigger a leave
            return;
          }
          if ($tip && $element && $tip.contains(target) && $element.contains(relatedTarget)) {
            // If focus moves from $tip to $element, don't trigger a leave
            return;
          }
          if ($tip && $tip.contains(target) && $tip.contains(relatedTarget)) {
            // If focus moves within $tip, don't trigger a leave
            return;
          }
          if ($element && $element.contains(target) && $element.contains(relatedTarget)) {
            // If focus moves within $element, don't trigger a leave
            return;
          }
          // Otherwise trigger a leave
          this.leave(e);
        } else if (type === 'mouseleave') {
          this.leave(e);
        }
      }

      /* istanbul ignore next */

    }, {
      key: 'setRouteWatcher',
      value: function setRouteWatcher(on) {
        var _this8 = this;

        if (on) {
          this.setRouteWatcher(false);
          if (this.$root && Boolean(this.$root.$route)) {
            this.$routeWatcher = this.$root.$watch('$route', function (newVal, oldVal) {
              if (newVal === oldVal) {
                return;
              }
              // If route has changed, we force hide the tooltip/popover
              _this8.forceHide();
            });
          }
        } else {
          if (this.$routeWatcher) {
            // cancel the route watcher by calling hte stored reference
            this.$routeWatcher();
            this.$routeWatcher = null;
          }
        }
      }

      /* istanbul ignore next */

    }, {
      key: 'setModalListener',
      value: function setModalListener(on) {
        var modal = closest(MODAL_CLASS, this.$element);
        if (!modal) {
          // If we are not in a modal, don't worry. be happy
          return;
        }
        // We can listen for modal hidden events on $root
        if (this.$root) {
          this.$root[on ? '$on' : '$off'](MODAL_CLOSE_EVENT, this.$forceHide);
        }
      }

      /* istanbul ignore next */

    }, {
      key: 'setRootListener',
      value: function setRootListener(on) {
        // Listen for global 'bv::{hide|show}::{tooltip|popover}' hide request event
        if (this.$root) {
          this.$root[on ? '$on' : '$off']('bv::hide::' + this.constructor.NAME, this.$doHide);
          this.$root[on ? '$on' : '$off']('bv::show::' + this.constructor.NAME, this.$doShow);
          this.$root[on ? '$on' : '$off']('bv::disable::' + this.constructor.NAME, this.$doDisable);
          this.$root[on ? '$on' : '$off']('bv::enable::' + this.constructor.NAME, this.$doEnable);
        }
      }
    }, {
      key: 'doHide',
      value: function doHide(id) {
        // Programmatically hide tooltip or popover
        if (!id) {
          // Close all tooltips or popovers
          this.forceHide();
        } else if (this.$element && this.$element.id && this.$element.id === id) {
          // Close this specific tooltip or popover
          this.hide();
        }
      }
    }, {
      key: 'doShow',
      value: function doShow(id) {
        // Programmatically show tooltip or popover
        if (!id) {
          // Open all tooltips or popovers
          this.show();
        } else if (id && this.$element && this.$element.id && this.$element.id === id) {
          // Show this specific tooltip or popover
          this.show();
        }
      }
    }, {
      key: 'doDisable',
      value: function doDisable(id) {
        // Programmatically disable tooltip or popover
        if (!id) {
          // Disable all tooltips or popovers
          this.disable();
        } else if (this.$element && this.$element.id && this.$element.id === id) {
          // Disable this specific tooltip or popover
          this.disable();
        }
      }
    }, {
      key: 'doEnable',
      value: function doEnable(id) {
        // Programmatically enable tooltip or popover
        if (!id) {
          // Enable all tooltips or popovers
          this.enable();
        } else if (this.$element && this.$element.id && this.$element.id === id) {
          // Enable this specific tooltip or popover
          this.enable();
        }
      }

      /* istanbul ignore next */

    }, {
      key: 'setOnTouchStartListener',
      value: function setOnTouchStartListener(on) {
        var _this9 = this;

        // 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) {
          from(document.body.children).forEach(function (el) {
            if (on) {
              eventOn(el, 'mouseover', _this9._noop);
            } else {
              eventOff(el, 'mouseover', _this9._noop);
            }
          });
        }
      }

      /* istanbul ignore next */

    }, {
      key: '_noop',
      value: function _noop() {
        // Empty noop handler for ontouchstart devices
      }
    }, {
      key: 'fixTitle',
      value: function fixTitle() {
        var el = this.$element;
        var titleType = _typeof(getAttr(el, 'data-original-title'));
        if (getAttr(el, 'title') || titleType !== 'string') {
          setAttr(el, 'data-original-title', getAttr(el, 'title') || '');
          setAttr(el, 'title', '');
        }
      }

      // Enter handler
      /* istanbul ignore next */

    }, {
      key: 'enter',
      value: function enter(e) {
        var _this10 = this;

        if (e) {
          this.$activeTrigger[e.type === 'focusin' ? 'focus' : 'hover'] = true;
        }
        if (hasClass(this.getTipElement(), ClassName.SHOW) || this.$hoverState === HoverState.SHOW) {
          this.$hoverState = HoverState.SHOW;
          return;
        }
        clearTimeout(this.$hoverTimeout);
        this.$hoverState = HoverState.SHOW;
        if (!this.$config.delay || !this.$config.delay.show) {
          this.show();
          return;
        }
        this.$hoverTimeout = setTimeout(function () {
          if (_this10.$hoverState === HoverState.SHOW) {
            _this10.show();
          }
        }, this.$config.delay.show);
      }

      // Leave handler
      /* istanbul ignore next */

    }, {
      key: 'leave',
      value: function leave(e) {
        var _this11 = this;

        if (e) {
          this.$activeTrigger[e.type === 'focusout' ? 'focus' : 'hover'] = false;
          if (e.type === 'focusout' && /blur/.test(this.$config.trigger)) {
            // Special case for `blur`: we clear out the other triggers
            this.$activeTrigger.click = false;
            this.$activeTrigger.hover = false;
          }
        }
        if (this.isWithActiveTrigger()) {
          return;
        }
        clearTimeout(this.$hoverTimeout);
        this.$hoverState = HoverState.OUT;
        if (!this.$config.delay || !this.$config.delay.hide) {
          this.hide();
          return;
        }
        this.$hoverTimeout = setTimeout(function () {
          if (_this11.$hoverState === HoverState.OUT) {
            _this11.hide();
          }
        }, this.$config.delay.hide);
      }
    }, {
      key: 'getPopperConfig',
      value: function getPopperConfig(placement, tip) {
        var _this12 = this;

        return {
          placement: this.constructor.getAttachment(placement),
          modifiers: {
            offset: { offset: this.getOffset(placement, tip) },
            flip: { behavior: this.$config.fallbackPlacement },
            arrow: { element: '.arrow' },
            preventOverflow: { boundariesElement: this.$config.boundary }
          },
          onCreate: function onCreate(data) {
            // Handle flipping arrow classes
            if (data.originalPlacement !== data.placement) {
              _this12.handlePopperPlacementChange(data);
            }
          },
          onUpdate: function onUpdate(data) {
            // Handle flipping arrow classes
            _this12.handlePopperPlacementChange(data);
          }
        };
      }
    }, {
      key: 'getOffset',
      value: function getOffset(placement, tip) {
        if (!this.$config.offset) {
          var arrow = select(Selector$1.ARROW, tip);
          var arrowOffset = parseFloat(getCS(arrow).width) + parseFloat(this.$config.arrowPadding);
          switch (OffsetMap[placement.toUpperCase()]) {
            case +1:
              return '+50%p - ' + arrowOffset + 'px';
            case -1:
              return '-50%p + ' + arrowOffset + 'px';
            default:
              return 0;
          }
        }
        return this.$config.offset;
      }
    }, {
      key: 'getPlacement',
      value: function getPlacement() {
        var placement = this.$config.placement;
        if (typeof placement === 'function') {
          return placement.call(this, this.$tip, this.$element);
        }
        return placement;
      }
    }, {
      key: 'isWithActiveTrigger',
      value: function isWithActiveTrigger() {
        for (var trigger in this.$activeTrigger) {
          if (this.$activeTrigger[trigger]) {
            return true;
          }
        }
        return false;
      }

      // NOTE: Overridden by PopOver class

    }, {
      key: 'cleanTipClass',
      value: function cleanTipClass() {
        var tip = this.getTipElement();
        var tabClass = tip.className.match(BSCLS_PREFIX_REGEX);
        if (tabClass !== null && tabClass.length > 0) {
          tabClass.forEach(function (cls) {
            removeClass(tip, cls);
          });
        }
      }
    }, {
      key: 'handlePopperPlacementChange',
      value: function handlePopperPlacementChange(data) {
        this.cleanTipClass();
        this.addAttachmentClass(this.constructor.getAttachment(data.placement));
      }
    }, {
      key: 'fixTransition',
      value: function fixTransition(tip) {
        var initConfigAnimation = this.$config.animation || false;
        if (getAttr(tip, 'x-placement') !== null) {
          return;
        }
        removeClass(tip, ClassName.FADE);
        this.$config.animation = false;
        this.hide();
        this.show();
        this.$config.animation = initConfigAnimation;
      }
    }], [{
      key: 'getAttachment',
      value: function getAttachment(placement) {
        return AttachmentMap$1[placement.toUpperCase()];
      }
    }, {
      key: 'Default',
      get: function get$$1() {
        return Defaults$1;
      }

      // NOTE: Overridden by PopOver class

    }, {
      key: 'NAME',
      get: function get$$1() {
        return NAME;
      }
    }]);
    return ToolTip;
  }();

  var NAME$1 = 'popover';
  var CLASS_PREFIX$1 = 'bs-popover';
  var BSCLS_PREFIX_REGEX$1 = new RegExp('\\b' + CLASS_PREFIX$1 + '\\S+', 'g');

  var Defaults$2 = assign({}, ToolTip.Default, {
    placement: 'right',
    trigger: 'click',
    content: '',
    template: '<div class="popover" role="tooltip">' + '<div class="arrow"></div>' + '<h3 class="popover-header"></h3>' + '<div class="popover-body"></div></div>'
  });

  var ClassName$1 = {
    FADE: 'fade',
    SHOW: 'show'
  };

  var Selector$2 = {
    TITLE: '.popover-header',
    CONTENT: '.popover-body'

    /* istanbul ignore next: dificult to test in Jest/JSDOM environment */
  };
  var PopOver = function (_ToolTip) {
    inherits(PopOver, _ToolTip);

    function PopOver() {
      classCallCheck(this, PopOver);
      return possibleConstructorReturn(this, (PopOver.__proto__ || Object.getPrototypeOf(PopOver)).apply(this, arguments));
    }

    createClass(PopOver, [{
      key: 'isWithContent',


      // Method overrides

      value: function isWithContent(tip) {
        tip = tip || this.$tip;
        if (!tip) {
          return false;
        }
        var hasTitle = Boolean((select(Selector$2.TITLE, tip) || {}).innerHTML);
        var hasContent = Boolean((select(Selector$2.CONTENT, tip) || {}).innerHTML);
        return hasTitle || hasContent;
      }
    }, {
      key: 'addAttachmentClass',
      value: function addAttachmentClass(attachment) {
        addClass(this.getTipElement(), CLASS_PREFIX$1 + '-' + attachment);
      }
    }, {
      key: 'setContent',
      value: function setContent(tip) {
        // we use append for html objects to maintain js events/components
        this.setElementContent(select(Selector$2.TITLE, tip), this.getTitle());
        this.setElementContent(select(Selector$2.CONTENT, tip), this.getContent());

        removeClass(tip, ClassName$1.FADE);
        removeClass(tip, ClassName$1.SHOW);
      }

      // This method may look identical to ToolTip version, but it uses a different RegEx defined above

    }, {
      key: 'cleanTipClass',
      value: function cleanTipClass() {
        var tip = this.getTipElement();
        var tabClass = tip.className.match(BSCLS_PREFIX_REGEX$1);
        if (tabClass !== null && tabClass.length > 0) {
          tabClass.forEach(function (cls) {
            removeClass(tip, cls);
          });
        }
      }
    }, {
      key: 'getTitle',
      value: function getTitle() {
        var title = this.$config.title || '';
        if (typeof title === 'function') {
          title = title(this.$element);
        }
        if ((typeof title === 'undefined' ? 'undefined' : _typeof(title)) === 'object' && title.nodeType && !title.innerHTML.trim()) {
          // We have a dom node, but without inner content, so just return an empty string
          title = '';
        }
        if (typeof title === 'string') {
          title = title.trim();
        }
        if (!title) {
          // Try and grab element's title attribute
          title = getAttr(this.$element, 'title') || getAttr(this.$element, 'data-original-title') || '';
          title = title.trim();
        }
        return title;
      }

      // New methods

    }, {
      key: 'getContent',
      value: function getContent() {
        var content = this.$config.content || '';
        if (typeof content === 'function') {
          content = content(this.$element);
        }
        if ((typeof content === 'undefined' ? 'undefined' : _typeof(content)) === 'object' && content.nodeType && !content.innerHTML.trim()) {
          // We have a dom node, but without inner content, so just return an empty string
          content = '';
        }
        if (typeof content === 'string') {
          content = content.trim();
        }
        return content;
      }
    }], [{
      key: 'Default',

      // Getter overrides

      get: function get$$1() {
        return Defaults$2;
      }
    }, {
      key: 'NAME',
      get: function get$$1() {
        return NAME$1;
      }
    }]);
    return PopOver;
  }(ToolTip);

  // Polyfills for SSR

  var isSSR = typeof window === 'undefined';

  var HTMLElement = isSSR ? Object : window.HTMLElement;

  /*
   * Tooltip/Popover component mixin
   * Common props
   */

  var PLACEMENTS = {
    top: 'top',
    topleft: 'topleft',
    topright: 'topright',
    right: 'right',
    righttop: 'righttop',
    rightbottom: 'rightbottom',
    bottom: 'bottom',
    bottomleft: 'bottomleft',
    bottomright: 'bottomright',
    left: 'left',
    lefttop: 'lefttop',
    leftbottom: 'leftbottom',
    auto: 'auto'
  };

  var OBSERVER_CONFIG$1 = {
    subtree: true,
    childList: true,
    characterData: true,
    attributes: true,
    attributeFilter: ['class', 'style']
  };

  var toolpopMixin = {
    props: {
      target: {
        // String ID of element, or element/component reference
        type: [String, Object, HTMLElement, Function]
      },
      delay: {
        type: [Number, Object, String],
        default: 0
      },
      offset: {
        type: [Number, String],
        default: 0
      },
      noFade: {
        type: Boolean,
        default: false
      },
      container: {
        // String ID of container, if null body is used (default)
        type: String,
        default: null
      },
      boundary: {
        // String: scrollParent, window, or viewport
        // Element: element reference
        type: [String, Object],
        default: 'scrollParent'
      },
      show: {
        type: Boolean,
        default: false
      },
      disabled: {
        type: Boolean,
        default: false
      }
    },
    watch: {
      show: function show(_show, old) {
        if (_show === old) {
          return;
        }
        _show ? this.onOpen() : this.onClose();
      },
      disabled: function disabled(_disabled, old) {
        if (_disabled === old) {
          return;
        }
        _disabled ? this.onDisable() : this.onEnable();
      }
    },
    created: function created() {
      // Create non-reactive property
      this._toolpop = null;
      this._obs_title = null;
      this._obs_content = null;
    },
    mounted: function mounted() {
      var _this = this;

      // We do this in a next tick to ensure DOM has rendered first
      this.$nextTick(function () {
        // Instantiate ToolTip/PopOver on target
        // The createToolpop method must exist in main component
        if (_this.createToolpop()) {
          if (_this.disabled) {
            // Initially disabled
            _this.onDisable();
          }
          // Listen to open signals from others
          _this.$on('open', _this.onOpen);
          // Listen to close signals from others
          _this.$on('close', _this.onClose);
          // Listen to disable signals from others
          _this.$on('disable', _this.onDisable);
          // Listen to disable signals from others
          _this.$on('enable', _this.onEnable);
          // Observe content Child changes so we can notify popper of possible size change
          _this.setObservers(true);
          // Set intially open state
          if (_this.show) {
            _this.onOpen();
          }
        }
      });
    },
    updated: function updated() {
      // If content/props changes, etc
      if (this._toolpop) {
        this._toolpop.updateConfig(this.getConfig());
      }
    },

    /* istanbul ignore next: not easy to test */
    activated: function activated() {
      // Called when component is inside a <keep-alive> and component brought offline
      this.setObservers(true);
    },

    /* istanbul ignore next: not easy to test */
    deactivated: function deactivated() {
      // Called when component is inside a <keep-alive> and component taken offline
      if (this._toolpop) {
        this.setObservers(false);
        this._toolpop.hide();
      }
    },

    /* istanbul ignore next: not easy to test */
    beforeDestroy: function beforeDestroy() {
      // Shutdown our local event listeners
      this.$off('open', this.onOpen);
      this.$off('close', this.onClose);
      this.$off('disable', this.onDisable);
      this.$off('enable', this.onEnable);
      this.setObservers(false);
      // bring our content back if needed
      this.bringItBack();
      if (this._toolpop) {
        this._toolpop.destroy();
        this._toolpop = null;
      }
    },

    computed: {
      baseConfig: function baseConfig() {
        var cont = this.container;
        var delay = _typeof(this.delay) === 'object' ? this.delay : parseInt(this.delay, 10) || 0;
        return {
          // Title prop
          title: (this.title || '').trim() || '',
          // Contnt prop (if popover)
          content: (this.content || '').trim() || '',
          // Tooltip/Popover placement
          placement: PLACEMENTS[this.placement] || 'auto',
          // Container curently needs to be an ID with '#' prepended, if null then body is used
          container: cont ? /^#/.test(cont) ? cont : '#' + cont : false,
          // boundariesElement passed to popper
          boundary: this.boundary,
          // Show/Hide delay
          delay: delay || 0,
          // Offset can be css distance. if no units, pixels are assumed
          offset: this.offset || 0,
          // Disable fade Animation?
          animation: !this.noFade,
          // Open/Close Trigger(s)
          trigger: isArray(this.triggers) ? this.triggers.join(' ') : this.triggers,
          // Callbacks so we can trigger events on component
          callbacks: {
            show: this.onShow,
            shown: this.onShown,
            hide: this.onHide,
            hidden: this.onHidden,
            enabled: this.onEnabled,
            disabled: this.onDisabled
          }
        };
      }
    },
    methods: {
      getConfig: function getConfig() {
        var cfg = assign({}, this.baseConfig);
        if (this.$refs.title && this.$refs.title.innerHTML.trim()) {
          // If slot has content, it overrides 'title' prop
          // We use the DOM node as content to allow components!
          cfg.title = this.$refs.title;
          cfg.html = true;
        }
        if (this.$refs.content && this.$refs.content.innerHTML.trim()) {
          // If slot has content, it overrides 'content' prop
          // We use the DOM node as content to allow components!
          cfg.content = this.$refs.content;
          cfg.html = true;
        }
        return cfg;
      },
      onOpen: function onOpen() {
        if (this._toolpop) {
          this._toolpop.show();
        }
      },
      onClose: function onClose(callback) {
        if (this._toolpop) {
          this._toolpop.hide(callback);
        } else if (typeof callback === 'function') {
          callback();
        }
      },
      onDisable: function onDisable() {
        if (this._toolpop) {
          this._toolpop.disable();
        }
      },
      onEnable: function onEnable() {
        if (this._toolpop) {
          this._toolpop.enable();
        }
      },
      updatePosition: function updatePosition() {
        if (this._toolpop) {
          // Instruct popper to reposition popover if necessary
          this._toolpop.update();
        }
      },
      getTarget: function getTarget() {
        var target = this.target;
        if (typeof target === 'function') {
          target = target();
        }
        if (typeof target === 'string') {
          // Assume ID of element
          return getById(target);
        } else if ((typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' && isElement(target.$el)) {
          // Component reference
          return target.$el;
        } else if ((typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' && isElement(target)) {
          // Element reference
          return target;
        }
        return null;
      },
      onShow: function onShow(evt) {
        this.$emit('show', evt);
      },
      onShown: function onShown(evt) {
        this.setObservers(true);
        this.$emit('update:show', true);
        this.$emit('shown', evt);
      },
      onHide: function onHide(evt) {
        this.$emit('hide', evt);
      },
      onHidden: function onHidden(evt) {
        this.setObservers(false);
        // bring our content back if needed to keep Vue happy
        // Tooltip class will move it back to tip when shown again
        this.bringItBack();
        this.$emit('update:show', false);
        this.$emit('hidden', evt);
      },
      onEnabled: function onEnabled(evt) {
        if (!evt || evt.type !== 'enabled') {
          // Prevent possible endless loop if user mistakienly fires enabled instead of enable
          return;
        }
        this.$emit('update:disabled', false);
        this.$emit('disabled');
      },
      onDisabled: function onDisabled(evt) {
        if (!evt || evt.type !== 'disabled') {
          // Prevent possible endless loop if user mistakienly fires disabled instead of disable
          return;
        }
        this.$emit('update:disabled', true);
        this.$emit('enabled');
      },
      bringItBack: function bringItBack() {
        // bring our content back if needed to keep Vue happy
        if (this.$el && this.$refs.title) {
          this.$el.appendChild(this.$refs.title);
        }
        if (this.$el && this.$refs.content) {
          this.$el.appendChild(this.$refs.content);
        }
      },

      /* istanbul ignore next: not easy to test */
      setObservers: function setObservers(on) {
        if (on) {
          if (this.$refs.title) {
            this._obs_title = observeDOM(this.$refs.title, this.updatePosition.bind(this), OBSERVER_CONFIG$1);
          }
          if (this.$refs.content) {
            this._obs_content = observeDOM(this.$refs.content, this.updatePosition.bind(this), OBSERVER_CONFIG$1);
          }
        } else {
          if (this._obs_title) {
            this._obs_title.disconnect();
            this._obs_title = null;
          }
          if (this._obs_content) {
            this._obs_content.disconnect();
            this._obs_content = null;
          }
        }
      }
    }
  };

  var bPopover = {
    mixins: [toolpopMixin],
    render: function render(h) {
      return h('div', {
        class: ['d-none'],
        style: { display: 'none' },
        attrs: { 'aria-hidden': true }
      }, [h('div', { ref: 'title' }, this.$slots.title), h('div', { ref: 'content' }, this.$slots.default)]);
    },
    data: function data() {
      return {};
    },

    props: {
      title: {
        type: String,
        default: ''
      },
      content: {
        type: String,
        default: ''
      },
      triggers: {
        type: [String, Array],
        default: 'click'
      },
      placement: {
        type: String,
        default: 'right'
      }
    },
    methods: {
      createToolpop: function createToolpop() {
        // getTarget is in toolpop mixin
        var target = this.getTarget();
        if (target) {
          this._toolpop = new PopOver(target, this.getConfig(), this.$root);
        } else {
          this._toolpop = null;
          warn("b-popover: 'target' element not found!");
        }
        return this._toolpop;
      }
    }
  };

  var components$v = {
    bPopover: bPopover
  };

  var VuePlugin$x = {
    install: function install(Vue) {
      registerComponents(Vue, components$v);
    }
  };

  vueUse(VuePlugin$x);

  var bProgressBar = {
    render: function render(h) {
      var childNodes = h(false);
      if (this.$slots.default) {
        childNodes = this.$slots.default;
      } else if (this.label) {
        childNodes = h('span', { domProps: { innerHTML: this.label } });
      } else if (this.computedShowProgress) {
        childNodes = this.progress.toFixed(this.computedPrecision);
      } else if (this.computedShowValue) {
        childNodes = this.value.toFixed(this.computedPrecision);
      }
      return h('div', {
        class: this.progressBarClasses,
        style: this.progressBarStyles,
        attrs: {
          role: 'progressbar',
          'aria-valuemin': '0',
          'aria-valuemax': this.computedMax.toString(),
          'aria-valuenow': this.value.toFixed(this.computedPrecision)
        }
      }, [childNodes]);
    },

    computed: {
      progressBarClasses: function progressBarClasses() {
        return ['progress-bar', this.computedVariant ? 'bg-' + this.computedVariant : '', this.computedStriped || this.computedAnimated ? 'progress-bar-striped' : '', this.computedAnimated ? 'progress-bar-animated' : ''];
      },
      progressBarStyles: function progressBarStyles() {
        return {
          width: 100 * (this.value / this.computedMax) + '%'
        };
      },
      progress: function progress() {
        var p = Math.pow(10, this.computedPrecision);
        return Math.round(100 * p * this.value / this.computedMax) / p;
      },
      computedMax: function computedMax() {
        // Prefer our max over parent setting
        return typeof this.max === 'number' ? this.max : this.$parent.max || 100;
      },
      computedVariant: function computedVariant() {
        // Prefer our variant over parent setting
        return this.variant || this.$parent.variant;
      },
      computedPrecision: function computedPrecision() {
        // Prefer our precision over parent setting
        return typeof this.precision === 'number' ? this.precision : this.$parent.precision || 0;
      },
      computedStriped: function computedStriped() {
        // Prefer our striped over parent setting
        return typeof this.striped === 'boolean' ? this.striped : this.$parent.striped || false;
      },
      computedAnimated: function computedAnimated() {
        // Prefer our animated over parent setting
        return typeof this.animated === 'boolean' ? this.animated : this.$parent.animated || false;
      },
      computedShowProgress: function computedShowProgress() {
        // Prefer our showProgress over parent setting
        return typeof this.showProgress === 'boolean' ? this.showProgress : this.$parent.showProgress || false;
      },
      computedShowValue: function computedShowValue() {
        // Prefer our showValue over parent setting
        return typeof this.showValue === 'boolean' ? this.showValue : this.$parent.showValue || false;
      }
    },
    props: {
      value: {
        type: Number,
        default: 0
      },
      label: {
        type: String,
        default: null
      },
      // $parent prop values take precedence over the following props
      // Which is why they are defaulted to null
      max: {
        type: Number,
        default: null
      },
      precision: {
        type: Number,
        default: null
      },
      variant: {
        type: String,
        default: null
      },
      striped: {
        type: Boolean,
        default: null
      },
      animated: {
        type: Boolean,
        default: null
      },
      showProgress: {
        type: Boolean,
        default: null
      },
      showValue: {
        type: Boolean,
        default: null
      }
    }
  };

  var bProgress = {
    components: { bProgressBar: bProgressBar },
    render: function render(h) {
      var childNodes = this.$slots.default;
      if (!childNodes) {
        childNodes = h('b-progress-bar', {
          props: {
            value: this.value,
            max: this.max,
            precision: this.precision,
            variant: this.variant,
            animated: this.animated,
            striped: this.striped,
            showProgress: this.showProgress,
            showValue: this.showValue
          }
        });
      }
      return h('div', { class: ['progress'], style: this.progressHeight }, [childNodes]);
    },

    props: {
      // These props can be inherited via the child b-progress-bar(s)
      variant: {
        type: String,
        default: null
      },
      striped: {
        type: Boolean,
        default: false
      },
      animated: {
        type: Boolean,
        default: false
      },
      height: {
        type: String,
        default: null
      },
      precision: {
        type: Number,
        default: 0
      },
      showProgress: {
        type: Boolean,
        default: false
      },
      showValue: {
        type: Boolean,
        default: false
      },
      max: {
        type: Number,
        default: 100
      },
      // This prop is not inherited by child b-progress-bar(s)
      value: {
        type: Number,
        default: 0
      }
    },
    computed: {
      progressHeight: function progressHeight() {
        return { height: this.height || null };
      }
    }
  };

  var components$w = {
    bProgress: bProgress,
    bProgressBar: bProgressBar
  };

  var VuePlugin$y = {
    install: function install(Vue) {
      registerComponents(Vue, components$w);
    }
  };

  vueUse(VuePlugin$y);

  var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

  /**
   * lodash (Custom Build) <https://lodash.com/>
   * Build: `lodash modularize exports="npm" -o ./`
   * Copyright jQuery Foundation and other contributors <https://jquery.org/>
   * Released under MIT license <https://lodash.com/license>
   * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
   * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
   */

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0;

  /** `Object#toString` result references. */
  var symbolTag = '[object Symbol]';

  /** Used to match words composed of alphanumeric characters. */
  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;

  /** Used to match Latin Unicode letters (excluding mathematical operators). */
  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;

  /** Used to compose unicode character classes. */
  var rsAstralRange = '\\ud800-\\udfff',
      rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
      rsComboSymbolsRange = '\\u20d0-\\u20f0',
      rsDingbatRange = '\\u2700-\\u27bf',
      rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
      rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
      rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
      rsPunctuationRange = '\\u2000-\\u206f',
      rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
      rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
      rsVarRange = '\\ufe0e\\ufe0f',
      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;

  /** Used to compose unicode capture groups. */
  var rsApos = '[\'\u2019]',
      rsAstral = '[' + rsAstralRange + ']',
      rsBreak = '[' + rsBreakRange + ']',
      rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']',
      rsDigits = '\\d+',
      rsDingbat = '[' + rsDingbatRange + ']',
      rsLower = '[' + rsLowerRange + ']',
      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
      rsFitz = '\\ud83c[\\udffb-\\udfff]',
      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
      rsNonAstral = '[^' + rsAstralRange + ']',
      rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
      rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
      rsUpper = '[' + rsUpperRange + ']',
      rsZWJ = '\\u200d';

  /** Used to compose unicode regexes. */
  var rsLowerMisc = '(?:' + rsLower + '|' + rsMisc + ')',
      rsUpperMisc = '(?:' + rsUpper + '|' + rsMisc + ')',
      rsOptLowerContr = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
      rsOptUpperContr = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
      reOptMod = rsModifier + '?',
      rsOptVar = '[' + rsVarRange + ']?',
      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
      rsSeq = rsOptVar + reOptMod + rsOptJoin,
      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';

  /** Used to match apostrophes. */
  var reApos = RegExp(rsApos, 'g');

  /**
   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
   */
  var reComboMark = RegExp(rsCombo, 'g');

  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');

  /** Used to match complex or compound words. */
  var reUnicodeWord = RegExp([rsUpper + '?' + rsLower + '+' + rsOptLowerContr + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', rsUpperMisc + '+' + rsOptUpperContr + '(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')', rsUpper + '?' + rsLowerMisc + '+' + rsOptLowerContr, rsUpper + '+' + rsOptUpperContr, rsDigits, rsEmoji].join('|'), 'g');

  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');

  /** Used to detect strings that need a more robust regexp to match words. */
  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;

  /** Used to map Latin Unicode letters to basic Latin letters. */
  var deburredLetters = {
    // Latin-1 Supplement block.
    '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
    '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
    '\xc7': 'C', '\xe7': 'c',
    '\xd0': 'D', '\xf0': 'd',
    '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
    '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
    '\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
    '\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
    '\xd1': 'N', '\xf1': 'n',
    '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
    '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
    '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
    '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
    '\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
    '\xc6': 'Ae', '\xe6': 'ae',
    '\xde': 'Th', '\xfe': 'th',
    '\xdf': 'ss',
    // Latin Extended-A block.
    '\u0100': 'A', '\u0102': 'A', '\u0104': 'A',
    '\u0101': 'a', '\u0103': 'a', '\u0105': 'a',
    '\u0106': 'C', '\u0108': 'C', '\u010A': 'C', '\u010C': 'C',
    '\u0107': 'c', '\u0109': 'c', '\u010B': 'c', '\u010D': 'c',
    '\u010E': 'D', '\u0110': 'D', '\u010F': 'd', '\u0111': 'd',
    '\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011A': 'E',
    '\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011B': 'e',
    '\u011C': 'G', '\u011E': 'G', '\u0120': 'G', '\u0122': 'G',
    '\u011D': 'g', '\u011F': 'g', '\u0121': 'g', '\u0123': 'g',
    '\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
    '\u0128': 'I', '\u012A': 'I', '\u012C': 'I', '\u012E': 'I', '\u0130': 'I',
    '\u0129': 'i', '\u012B': 'i', '\u012D': 'i', '\u012F': 'i', '\u0131': 'i',
    '\u0134': 'J', '\u0135': 'j',
    '\u0136': 'K', '\u0137': 'k', '\u0138': 'k',
    '\u0139': 'L', '\u013B': 'L', '\u013D': 'L', '\u013F': 'L', '\u0141': 'L',
    '\u013A': 'l', '\u013C': 'l', '\u013E': 'l', '\u0140': 'l', '\u0142': 'l',
    '\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014A': 'N',
    '\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014B': 'n',
    '\u014C': 'O', '\u014E': 'O', '\u0150': 'O',
    '\u014D': 'o', '\u014F': 'o', '\u0151': 'o',
    '\u0154': 'R', '\u0156': 'R', '\u0158': 'R',
    '\u0155': 'r', '\u0157': 'r', '\u0159': 'r',
    '\u015A': 'S', '\u015C': 'S', '\u015E': 'S', '\u0160': 'S',
    '\u015B': 's', '\u015D': 's', '\u015F': 's', '\u0161': 's',
    '\u0162': 'T', '\u0164': 'T', '\u0166': 'T',
    '\u0163': 't', '\u0165': 't', '\u0167': 't',
    '\u0168': 'U', '\u016A': 'U', '\u016C': 'U', '\u016E': 'U', '\u0170': 'U', '\u0172': 'U',
    '\u0169': 'u', '\u016B': 'u', '\u016D': 'u', '\u016F': 'u', '\u0171': 'u', '\u0173': 'u',
    '\u0174': 'W', '\u0175': 'w',
    '\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y',
    '\u0179': 'Z', '\u017B': 'Z', '\u017D': 'Z',
    '\u017A': 'z', '\u017C': 'z', '\u017E': 'z',
    '\u0132': 'IJ', '\u0133': 'ij',
    '\u0152': 'Oe', '\u0153': 'oe',
    '\u0149': "'n", '\u017F': 'ss'
  };

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = _typeof(commonjsGlobal) == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;

  /** Detect free variable `self`. */
  var freeSelf = (typeof self === 'undefined' ? 'undefined' : _typeof(self)) == 'object' && self && self.Object === Object && self;

  /** Used as a reference to the global object. */
  var root = freeGlobal || freeSelf || Function('return this')();

  /**
   * A specialized version of `_.reduce` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the first element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduce(array, iteratee, accumulator, initAccum) {
    var index = -1,
        length = array ? array.length : 0;

    if (initAccum && length) {
      accumulator = array[++index];
    }
    while (++index < length) {
      accumulator = iteratee(accumulator, array[index], index, array);
    }
    return accumulator;
  }

  /**
   * Converts an ASCII `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function asciiToArray(string) {
    return string.split('');
  }

  /**
   * Splits an ASCII `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function asciiWords(string) {
    return string.match(reAsciiWord) || [];
  }

  /**
   * The base implementation of `_.propertyOf` without support for deep paths.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Function} Returns the new accessor function.
   */
  function basePropertyOf(object) {
    return function (key) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
   * letters to basic Latin letters.
   *
   * @private
   * @param {string} letter The matched letter to deburr.
   * @returns {string} Returns the deburred letter.
   */
  var deburrLetter = basePropertyOf(deburredLetters);

  /**
   * Checks if `string` contains Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
   */
  function hasUnicode(string) {
    return reHasUnicode.test(string);
  }

  /**
   * Checks if `string` contains a word composed of Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a word is found, else `false`.
   */
  function hasUnicodeWord(string) {
    return reHasUnicodeWord.test(string);
  }

  /**
   * Converts `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function stringToArray(string) {
    return hasUnicode(string) ? unicodeToArray(string) : asciiToArray(string);
  }

  /**
   * Converts a Unicode `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function unicodeToArray(string) {
    return string.match(reUnicode) || [];
  }

  /**
   * Splits a Unicode `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function unicodeWords(string) {
    return string.match(reUnicodeWord) || [];
  }

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /**
   * Used to resolve the
   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
   * of values.
   */
  var objectToString = objectProto.toString;

  /** Built-in value references. */
  var _Symbol = root.Symbol;

  /** Used to convert symbols to primitives and strings. */
  var symbolProto = _Symbol ? _Symbol.prototype : undefined,
      symbolToString = symbolProto ? symbolProto.toString : undefined;

  /**
   * The base implementation of `_.slice` without an iteratee call guard.
   *
   * @private
   * @param {Array} array The array to slice.
   * @param {number} [start=0] The start position.
   * @param {number} [end=array.length] The end position.
   * @returns {Array} Returns the slice of `array`.
   */
  function baseSlice(array, start, end) {
    var index = -1,
        length = array.length;

    if (start < 0) {
      start = -start > length ? 0 : length + start;
    }
    end = end > length ? length : end;
    if (end < 0) {
      end += length;
    }
    length = start > end ? 0 : end - start >>> 0;
    start >>>= 0;

    var result = Array(length);
    while (++index < length) {
      result[index] = array[index + start];
    }
    return result;
  }

  /**
   * The base implementation of `_.toString` which doesn't convert nullish
   * values to empty strings.
   *
   * @private
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   */
  function baseToString(value) {
    // Exit early for strings to avoid a performance hit in some environments.
    if (typeof value == 'string') {
      return value;
    }
    if (isSymbol(value)) {
      return symbolToString ? symbolToString.call(value) : '';
    }
    var result = value + '';
    return result == '0' && 1 / value == -INFINITY ? '-0' : result;
  }

  /**
   * Casts `array` to a slice if it's needed.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {number} start The start position.
   * @param {number} [end=array.length] The end position.
   * @returns {Array} Returns the cast slice.
   */
  function castSlice(array, start, end) {
    var length = array.length;
    end = end === undefined ? length : end;
    return !start && end >= length ? array : baseSlice(array, start, end);
  }

  /**
   * Creates a function like `_.lowerFirst`.
   *
   * @private
   * @param {string} methodName The name of the `String` case method to use.
   * @returns {Function} Returns the new case function.
   */
  function createCaseFirst(methodName) {
    return function (string) {
      string = toString(string);

      var strSymbols = hasUnicode(string) ? stringToArray(string) : undefined;

      var chr = strSymbols ? strSymbols[0] : string.charAt(0);

      var trailing = strSymbols ? castSlice(strSymbols, 1).join('') : string.slice(1);

      return chr[methodName]() + trailing;
    };
  }

  /**
   * Creates a function like `_.camelCase`.
   *
   * @private
   * @param {Function} callback The function to combine each word.
   * @returns {Function} Returns the new compounder function.
   */
  function createCompounder(callback) {
    return function (string) {
      return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
    };
  }

  /**
   * Checks if `value` is object-like. A value is object-like if it's not `null`
   * and has a `typeof` result of "object".
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
   * @example
   *
   * _.isObjectLike({});
   * // => true
   *
   * _.isObjectLike([1, 2, 3]);
   * // => true
   *
   * _.isObjectLike(_.noop);
   * // => false
   *
   * _.isObjectLike(null);
   * // => false
   */
  function isObjectLike(value) {
    return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) == 'object';
  }

  /**
   * Checks if `value` is classified as a `Symbol` primitive or object.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
   * @example
   *
   * _.isSymbol(Symbol.iterator);
   * // => true
   *
   * _.isSymbol('abc');
   * // => false
   */
  function isSymbol(value) {
    return (typeof value === 'undefined' ? 'undefined' : _typeof(value)) == 'symbol' || isObjectLike(value) && objectToString.call(value) == symbolTag;
  }

  /**
   * Converts `value` to a string. An empty string is returned for `null`
   * and `undefined` values. The sign of `-0` is preserved.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   * @example
   *
   * _.toString(null);
   * // => ''
   *
   * _.toString(-0);
   * // => '-0'
   *
   * _.toString([1, 2, 3]);
   * // => '1,2,3'
   */
  function toString(value) {
    return value == null ? '' : baseToString(value);
  }

  /**
   * Deburrs `string` by converting
   * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
   * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
   * letters to basic Latin letters and removing
   * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category String
   * @param {string} [string=''] The string to deburr.
   * @returns {string} Returns the deburred string.
   * @example
   *
   * _.deburr('déjà vu');
   * // => 'deja vu'
   */
  function deburr(string) {
    string = toString(string);
    return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
  }

  /**
   * Converts `string` to
   * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
   *
   * @static
   * @memberOf _
   * @since 3.1.0
   * @category String
   * @param {string} [string=''] The string to convert.
   * @returns {string} Returns the start cased string.
   * @example
   *
   * _.startCase('--foo-bar--');
   * // => 'Foo Bar'
   *
   * _.startCase('fooBar');
   * // => 'Foo Bar'
   *
   * _.startCase('__FOO_BAR__');
   * // => 'FOO BAR'
   */
  var startCase = createCompounder(function (result, word, index) {
    return result + (index ? ' ' : '') + upperFirst$1(word);
  });

  /**
   * Converts the first character of `string` to upper case.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category String
   * @param {string} [string=''] The string to convert.
   * @returns {string} Returns the converted string.
   * @example
   *
   * _.upperFirst('fred');
   * // => 'Fred'
   *
   * _.upperFirst('FRED');
   * // => 'FRED'
   */
  var upperFirst$1 = createCaseFirst('toUpperCase');

  /**
   * Splits `string` into an array of its words.
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category String
   * @param {string} [string=''] The string to inspect.
   * @param {RegExp|string} [pattern] The pattern to match words.
   * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
   * @returns {Array} Returns the words of `string`.
   * @example
   *
   * _.words('fred, barney, & pebbles');
   * // => ['fred', 'barney', 'pebbles']
   *
   * _.words('fred, barney, & pebbles', /[^, ]+/g);
   * // => ['fred', 'barney', '&', 'pebbles']
   */
  function words(string, pattern, guard) {
    string = toString(string);
    pattern = guard ? undefined : pattern;

    if (pattern === undefined) {
      return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
    }
    return string.match(pattern) || [];
  }

  var lodash_startcase = startCase;

  /**
   * lodash (Custom Build) <https://lodash.com/>
   * Build: `lodash modularize exports="npm" -o ./`
   * Copyright jQuery Foundation and other contributors <https://jquery.org/>
   * Released under MIT license <https://lodash.com/license>
   * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
   * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
   */

  /** Used as the `TypeError` message for "Functions" methods. */
  var FUNC_ERROR_TEXT = 'Expected a function';

  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /** Used as references for various `Number` constants. */
  var INFINITY$1 = 1 / 0;

  /** `Object#toString` result references. */
  var funcTag = '[object Function]',
      genTag = '[object GeneratorFunction]',
      symbolTag$1 = '[object Symbol]';

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/,
      reLeadingDot = /^\./,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;

  /**
   * Used to match `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal$1 = _typeof(commonjsGlobal) == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;

  /** Detect free variable `self`. */
  var freeSelf$1 = (typeof self === 'undefined' ? 'undefined' : _typeof(self)) == 'object' && self && self.Object === Object && self;

  /** Used as a reference to the global object. */
  var root$1 = freeGlobal$1 || freeSelf$1 || Function('return this')();

  /**
   * Gets the value at `key` of `object`.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {string} key The key of the property to get.
   * @returns {*} Returns the property value.
   */
  function getValue(object, key) {
    return object == null ? undefined : object[key];
  }

  /**
   * Checks if `value` is a host object in IE < 9.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a host object, else `false`.
   */
  function isHostObject(value) {
    // Many host objects are `Object` objects that can coerce to strings
    // despite having improperly defined `toString` methods.
    var result = false;
    if (value != null && typeof value.toString != 'function') {
      try {
        result = !!(value + '');
      } catch (e) {}
    }
    return result;
  }

  /** Used for built-in method references. */
  var arrayProto = Array.prototype,
      funcProto = Function.prototype,
      objectProto$1 = Object.prototype;

  /** Used to detect overreaching core-js shims. */
  var coreJsData = root$1['__core-js_shared__'];

  /** Used to detect methods masquerading as native. */
  var maskSrcKey = function () {
    var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
    return uid ? 'Symbol(src)_1.' + uid : '';
  }();

  /** Used to resolve the decompiled source of functions. */
  var funcToString = funcProto.toString;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto$1.hasOwnProperty;

  /**
   * Used to resolve the
   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
   * of values.
   */
  var objectToString$1 = objectProto$1.toString;

  /** Used to detect if a method is native. */
  var reIsNative = RegExp('^' + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&').replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$');

  /** Built-in value references. */
  var _Symbol$1 = root$1.Symbol,
      splice = arrayProto.splice;

  /* Built-in method references that are verified to be native. */
  var Map = getNative(root$1, 'Map'),
      nativeCreate = getNative(Object, 'create');

  /** Used to convert symbols to primitives and strings. */
  var symbolProto$1 = _Symbol$1 ? _Symbol$1.prototype : undefined,
      symbolToString$1 = symbolProto$1 ? symbolProto$1.toString : undefined;

  /**
   * Creates a hash object.
   *
   * @private
   * @constructor
   * @param {Array} [entries] The key-value pairs to cache.
   */
  function Hash(entries) {
    var index = -1,
        length = entries ? entries.length : 0;

    this.clear();
    while (++index < length) {
      var entry = entries[index];
      this.set(entry[0], entry[1]);
    }
  }

  /**
   * Removes all key-value entries from the hash.
   *
   * @private
   * @name clear
   * @memberOf Hash
   */
  function hashClear() {
    this.__data__ = nativeCreate ? nativeCreate(null) : {};
  }

  /**
   * Removes `key` and its value from the hash.
   *
   * @private
   * @name delete
   * @memberOf Hash
   * @param {Object} hash The hash to modify.
   * @param {string} key The key of the value to remove.
   * @returns {boolean} Returns `true` if the entry was removed, else `false`.
   */
  function hashDelete(key) {
    return this.has(key) && delete this.__data__[key];
  }

  /**
   * Gets the hash value for `key`.
   *
   * @private
   * @name get
   * @memberOf Hash
   * @param {string} key The key of the value to get.
   * @returns {*} Returns the entry value.
   */
  function hashGet(key) {
    var data = this.__data__;
    if (nativeCreate) {
      var result = data[key];
      return result === HASH_UNDEFINED ? undefined : result;
    }
    return hasOwnProperty.call(data, key) ? data[key] : undefined;
  }

  /**
   * Checks if a hash value for `key` exists.
   *
   * @private
   * @name has
   * @memberOf Hash
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function hashHas(key) {
    var data = this.__data__;
    return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);
  }

  /**
   * Sets the hash `key` to `value`.
   *
   * @private
   * @name set
   * @memberOf Hash
   * @param {string} key The key of the value to set.
   * @param {*} value The value to set.
   * @returns {Object} Returns the hash instance.
   */
  function hashSet(key, value) {
    var data = this.__data__;
    data[key] = nativeCreate && value === undefined ? HASH_UNDEFINED : value;
    return this;
  }

  // Add methods to `Hash`.
  Hash.prototype.clear = hashClear;
  Hash.prototype['delete'] = hashDelete;
  Hash.prototype.get = hashGet;
  Hash.prototype.has = hashHas;
  Hash.prototype.set = hashSet;

  /**
   * Creates an list cache object.
   *
   * @private
   * @constructor
   * @param {Array} [entries] The key-value pairs to cache.
   */
  function ListCache(entries) {
    var index = -1,
        length = entries ? entries.length : 0;

    this.clear();
    while (++index < length) {
      var entry = entries[index];
      this.set(entry[0], entry[1]);
    }
  }

  /**
   * Removes all key-value entries from the list cache.
   *
   * @private
   * @name clear
   * @memberOf ListCache
   */
  function listCacheClear() {
    this.__data__ = [];
  }

  /**
   * Removes `key` and its value from the list cache.
   *
   * @private
   * @name delete
   * @memberOf ListCache
   * @param {string} key The key of the value to remove.
   * @returns {boolean} Returns `true` if the entry was removed, else `false`.
   */
  function listCacheDelete(key) {
    var data = this.__data__,
        index = assocIndexOf(data, key);

    if (index < 0) {
      return false;
    }
    var lastIndex = data.length - 1;
    if (index == lastIndex) {
      data.pop();
    } else {
      splice.call(data, index, 1);
    }
    return true;
  }

  /**
   * Gets the list cache value for `key`.
   *
   * @private
   * @name get
   * @memberOf ListCache
   * @param {string} key The key of the value to get.
   * @returns {*} Returns the entry value.
   */
  function listCacheGet(key) {
    var data = this.__data__,
        index = assocIndexOf(data, key);

    return index < 0 ? undefined : data[index][1];
  }

  /**
   * Checks if a list cache value for `key` exists.
   *
   * @private
   * @name has
   * @memberOf ListCache
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function listCacheHas(key) {
    return assocIndexOf(this.__data__, key) > -1;
  }

  /**
   * Sets the list cache `key` to `value`.
   *
   * @private
   * @name set
   * @memberOf ListCache
   * @param {string} key The key of the value to set.
   * @param {*} value The value to set.
   * @returns {Object} Returns the list cache instance.
   */
  function listCacheSet(key, value) {
    var data = this.__data__,
        index = assocIndexOf(data, key);

    if (index < 0) {
      data.push([key, value]);
    } else {
      data[index][1] = value;
    }
    return this;
  }

  // Add methods to `ListCache`.
  ListCache.prototype.clear = listCacheClear;
  ListCache.prototype['delete'] = listCacheDelete;
  ListCache.prototype.get = listCacheGet;
  ListCache.prototype.has = listCacheHas;
  ListCache.prototype.set = listCacheSet;

  /**
   * Creates a map cache object to store key-value pairs.
   *
   * @private
   * @constructor
   * @param {Array} [entries] The key-value pairs to cache.
   */
  function MapCache(entries) {
    var index = -1,
        length = entries ? entries.length : 0;

    this.clear();
    while (++index < length) {
      var entry = entries[index];
      this.set(entry[0], entry[1]);
    }
  }

  /**
   * Removes all key-value entries from the map.
   *
   * @private
   * @name clear
   * @memberOf MapCache
   */
  function mapCacheClear() {
    this.__data__ = {
      'hash': new Hash(),
      'map': new (Map || ListCache)(),
      'string': new Hash()
    };
  }

  /**
   * Removes `key` and its value from the map.
   *
   * @private
   * @name delete
   * @memberOf MapCache
   * @param {string} key The key of the value to remove.
   * @returns {boolean} Returns `true` if the entry was removed, else `false`.
   */
  function mapCacheDelete(key) {
    return getMapData(this, key)['delete'](key);
  }

  /**
   * Gets the map value for `key`.
   *
   * @private
   * @name get
   * @memberOf MapCache
   * @param {string} key The key of the value to get.
   * @returns {*} Returns the entry value.
   */
  function mapCacheGet(key) {
    return getMapData(this, key).get(key);
  }

  /**
   * Checks if a map value for `key` exists.
   *
   * @private
   * @name has
   * @memberOf MapCache
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function mapCacheHas(key) {
    return getMapData(this, key).has(key);
  }

  /**
   * Sets the map `key` to `value`.
   *
   * @private
   * @name set
   * @memberOf MapCache
   * @param {string} key The key of the value to set.
   * @param {*} value The value to set.
   * @returns {Object} Returns the map cache instance.
   */
  function mapCacheSet(key, value) {
    getMapData(this, key).set(key, value);
    return this;
  }

  // Add methods to `MapCache`.
  MapCache.prototype.clear = mapCacheClear;
  MapCache.prototype['delete'] = mapCacheDelete;
  MapCache.prototype.get = mapCacheGet;
  MapCache.prototype.has = mapCacheHas;
  MapCache.prototype.set = mapCacheSet;

  /**
   * Gets the index at which the `key` is found in `array` of key-value pairs.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} key The key to search for.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function assocIndexOf(array, key) {
    var length = array.length;
    while (length--) {
      if (eq(array[length][0], key)) {
        return length;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.get` without support for default values.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array|string} path The path of the property to get.
   * @returns {*} Returns the resolved value.
   */
  function baseGet(object, path) {
    path = isKey(path, object) ? [path] : castPath(path);

    var index = 0,
        length = path.length;

    while (object != null && index < length) {
      object = object[toKey(path[index++])];
    }
    return index && index == length ? object : undefined;
  }

  /**
   * The base implementation of `_.isNative` without bad shim checks.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a native function,
   *  else `false`.
   */
  function baseIsNative(value) {
    if (!isObject$2(value) || isMasked(value)) {
      return false;
    }
    var pattern = isFunction$1(value) || isHostObject(value) ? reIsNative : reIsHostCtor;
    return pattern.test(toSource(value));
  }

  /**
   * The base implementation of `_.toString` which doesn't convert nullish
   * values to empty strings.
   *
   * @private
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   */
  function baseToString$1(value) {
    // Exit early for strings to avoid a performance hit in some environments.
    if (typeof value == 'string') {
      return value;
    }
    if (isSymbol$1(value)) {
      return symbolToString$1 ? symbolToString$1.call(value) : '';
    }
    var result = value + '';
    return result == '0' && 1 / value == -INFINITY$1 ? '-0' : result;
  }

  /**
   * Casts `value` to a path array if it's not one.
   *
   * @private
   * @param {*} value The value to inspect.
   * @returns {Array} Returns the cast property path array.
   */
  function castPath(value) {
    return isArray$1(value) ? value : stringToPath(value);
  }

  /**
   * Gets the data for `map`.
   *
   * @private
   * @param {Object} map The map to query.
   * @param {string} key The reference key.
   * @returns {*} Returns the map data.
   */
  function getMapData(map, key) {
    var data = map.__data__;
    return isKeyable(key) ? data[typeof key == 'string' ? 'string' : 'hash'] : data.map;
  }

  /**
   * Gets the native function at `key` of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {string} key The key of the method to get.
   * @returns {*} Returns the function if it's native, else `undefined`.
   */
  function getNative(object, key) {
    var value = getValue(object, key);
    return baseIsNative(value) ? value : undefined;
  }

  /**
   * Checks if `value` is a property name and not a property path.
   *
   * @private
   * @param {*} value The value to check.
   * @param {Object} [object] The object to query keys on.
   * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
   */
  function isKey(value, object) {
    if (isArray$1(value)) {
      return false;
    }
    var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);
    if (type == 'number' || type == 'symbol' || type == 'boolean' || value == null || isSymbol$1(value)) {
      return true;
    }
    return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || object != null && value in Object(object);
  }

  /**
   * Checks if `value` is suitable for use as unique object key.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
   */
  function isKeyable(value) {
    var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);
    return type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean' ? value !== '__proto__' : value === null;
  }

  /**
   * Checks if `func` has its source masked.
   *
   * @private
   * @param {Function} func The function to check.
   * @returns {boolean} Returns `true` if `func` is masked, else `false`.
   */
  function isMasked(func) {
    return !!maskSrcKey && maskSrcKey in func;
  }

  /**
   * Converts `string` to a property path array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the property path array.
   */
  var stringToPath = memoize$1(function (string) {
    string = toString$1(string);

    var result = [];
    if (reLeadingDot.test(string)) {
      result.push('');
    }
    string.replace(rePropName, function (match, number, quote, string) {
      result.push(quote ? string.replace(reEscapeChar, '$1') : number || match);
    });
    return result;
  });

  /**
   * Converts `value` to a string key if it's not a string or symbol.
   *
   * @private
   * @param {*} value The value to inspect.
   * @returns {string|symbol} Returns the key.
   */
  function toKey(value) {
    if (typeof value == 'string' || isSymbol$1(value)) {
      return value;
    }
    var result = value + '';
    return result == '0' && 1 / value == -INFINITY$1 ? '-0' : result;
  }

  /**
   * Converts `func` to its source code.
   *
   * @private
   * @param {Function} func The function to process.
   * @returns {string} Returns the source code.
   */
  function toSource(func) {
    if (func != null) {
      try {
        return funcToString.call(func);
      } catch (e) {}
      try {
        return func + '';
      } catch (e) {}
    }
    return '';
  }

  /**
   * Creates a function that memoizes the result of `func`. If `resolver` is
   * provided, it determines the cache key for storing the result based on the
   * arguments provided to the memoized function. By default, the first argument
   * provided to the memoized function is used as the map cache key. The `func`
   * is invoked with the `this` binding of the memoized function.
   *
   * **Note:** The cache is exposed as the `cache` property on the memoized
   * function. Its creation may be customized by replacing the `_.memoize.Cache`
   * constructor with one whose instances implement the
   * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
   * method interface of `delete`, `get`, `has`, and `set`.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Function
   * @param {Function} func The function to have its output memoized.
   * @param {Function} [resolver] The function to resolve the cache key.
   * @returns {Function} Returns the new memoized function.
   * @example
   *
   * var object = { 'a': 1, 'b': 2 };
   * var other = { 'c': 3, 'd': 4 };
   *
   * var values = _.memoize(_.values);
   * values(object);
   * // => [1, 2]
   *
   * values(other);
   * // => [3, 4]
   *
   * object.a = 2;
   * values(object);
   * // => [1, 2]
   *
   * // Modify the result cache.
   * values.cache.set(object, ['a', 'b']);
   * values(object);
   * // => ['a', 'b']
   *
   * // Replace `_.memoize.Cache`.
   * _.memoize.Cache = WeakMap;
   */
  function memoize$1(func, resolver) {
    if (typeof func != 'function' || resolver && typeof resolver != 'function') {
      throw new TypeError(FUNC_ERROR_TEXT);
    }
    var memoized = function memoized() {
      var args = arguments,
          key = resolver ? resolver.apply(this, args) : args[0],
          cache = memoized.cache;

      if (cache.has(key)) {
        return cache.get(key);
      }
      var result = func.apply(this, args);
      memoized.cache = cache.set(key, result);
      return result;
    };
    memoized.cache = new (memoize$1.Cache || MapCache)();
    return memoized;
  }

  // Assign cache to `_.memoize`.
  memoize$1.Cache = MapCache;

  /**
   * Performs a
   * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
   * comparison between two values to determine if they are equivalent.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to compare.
   * @param {*} other The other value to compare.
   * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
   * @example
   *
   * var object = { 'a': 1 };
   * var other = { 'a': 1 };
   *
   * _.eq(object, object);
   * // => true
   *
   * _.eq(object, other);
   * // => false
   *
   * _.eq('a', 'a');
   * // => true
   *
   * _.eq('a', Object('a'));
   * // => false
   *
   * _.eq(NaN, NaN);
   * // => true
   */
  function eq(value, other) {
    return value === other || value !== value && other !== other;
  }

  /**
   * Checks if `value` is classified as an `Array` object.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an array, else `false`.
   * @example
   *
   * _.isArray([1, 2, 3]);
   * // => true
   *
   * _.isArray(document.body.children);
   * // => false
   *
   * _.isArray('abc');
   * // => false
   *
   * _.isArray(_.noop);
   * // => false
   */
  var isArray$1 = Array.isArray;

  /**
   * Checks if `value` is classified as a `Function` object.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a function, else `false`.
   * @example
   *
   * _.isFunction(_);
   * // => true
   *
   * _.isFunction(/abc/);
   * // => false
   */
  function isFunction$1(value) {
    // The use of `Object#toString` avoids issues with the `typeof` operator
    // in Safari 8-9 which returns 'object' for typed array and other constructors.
    var tag = isObject$2(value) ? objectToString$1.call(value) : '';
    return tag == funcTag || tag == genTag;
  }

  /**
   * Checks if `value` is the
   * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
   * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an object, else `false`.
   * @example
   *
   * _.isObject({});
   * // => true
   *
   * _.isObject([1, 2, 3]);
   * // => true
   *
   * _.isObject(_.noop);
   * // => true
   *
   * _.isObject(null);
   * // => false
   */
  function isObject$2(value) {
    var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);
    return !!value && (type == 'object' || type == 'function');
  }

  /**
   * Checks if `value` is object-like. A value is object-like if it's not `null`
   * and has a `typeof` result of "object".
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
   * @example
   *
   * _.isObjectLike({});
   * // => true
   *
   * _.isObjectLike([1, 2, 3]);
   * // => true
   *
   * _.isObjectLike(_.noop);
   * // => false
   *
   * _.isObjectLike(null);
   * // => false
   */
  function isObjectLike$1(value) {
    return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) == 'object';
  }

  /**
   * Checks if `value` is classified as a `Symbol` primitive or object.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
   * @example
   *
   * _.isSymbol(Symbol.iterator);
   * // => true
   *
   * _.isSymbol('abc');
   * // => false
   */
  function isSymbol$1(value) {
    return (typeof value === 'undefined' ? 'undefined' : _typeof(value)) == 'symbol' || isObjectLike$1(value) && objectToString$1.call(value) == symbolTag$1;
  }

  /**
   * Converts `value` to a string. An empty string is returned for `null`
   * and `undefined` values. The sign of `-0` is preserved.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   * @example
   *
   * _.toString(null);
   * // => ''
   *
   * _.toString(-0);
   * // => '-0'
   *
   * _.toString([1, 2, 3]);
   * // => '1,2,3'
   */
  function toString$1(value) {
    return value == null ? '' : baseToString$1(value);
  }

  /**
   * Gets the value at `path` of `object`. If the resolved value is
   * `undefined`, the `defaultValue` is returned in its place.
   *
   * @static
   * @memberOf _
   * @since 3.7.0
   * @category Object
   * @param {Object} object The object to query.
   * @param {Array|string} path The path of the property to get.
   * @param {*} [defaultValue] The value returned for `undefined` resolved values.
   * @returns {*} Returns the resolved value.
   * @example
   *
   * var object = { 'a': [{ 'b': { 'c': 3 } }] };
   *
   * _.get(object, 'a[0].b.c');
   * // => 3
   *
   * _.get(object, ['a', '0', 'b', 'c']);
   * // => 3
   *
   * _.get(object, 'a.b.c', 'default');
   * // => 'default'
   */
  function get$1(object, path, defaultValue) {
    var result = object == null ? undefined : baseGet(object, path);
    return result === undefined ? defaultValue : result;
  }

  var lodash_get = get$1;

  /*
   * Consitant and stable sort function across JavsaScript platforms
   *
   * Inconsistant sorts can cause SSR problems between client and server
   * such as in <b-table> if sortBy is applied to the data on server side render.
   * Chrome and V8 native sorts are inconsistant/unstable
   *
   * This function uses native sort with fallback to index compare when the a and b
   * compare returns 0
   *
   * Algorithm bsaed on:
   * https://stackoverflow.com/questions/1427608/fast-stable-sorting-algorithm-implementation-in-javascript/45422645#45422645
   *
   * @param {array} array to sort
   * @param {function} sortcompare function
   * @return {array}
   */

  function stableSort(array, compareFn) {
    // Using `.bind(compareFn)` on the wrapped anonymous function improves
    // performance by avoiding the function call setup. We don't use an arrow
    // function here as it binds `this` to the `stableSort` context rather than
    // the `compareFn` context, which wouldn't give us the performance increase.
    return array.map(function (a, index) {
      return [index, a];
    }).sort(function (a, b) {
      return this(a[1], b[1]) || a[0] - b[0];
    }.bind(compareFn)).map(function (e) {
      return e[1];
    });
  }

  function toString$2(v) {
    if (!v) {
      return '';
    }
    if (v instanceof Object) {
      return keys(v).map(function (k) {
        return toString$2(v[k]);
      }).join(' ');
    }
    return String(v);
  }

  function recToString(obj) {
    if (!(obj instanceof Object)) {
      return '';
    }
    return toString$2(keys(obj).reduce(function (o, k) {
      // Ignore fields that start with _
      if (!/^_/.test(k)) {
        o[k] = obj[k];
      }
      return o;
    }, {}));
  }

  function defaultSortCompare(a, b, sortBy) {
    if (typeof a[sortBy] === 'number' && typeof b[sortBy] === 'number') {
      return a[sortBy] < b[sortBy] && -1 || a[sortBy] > b[sortBy] && 1 || 0;
    }
    return toString$2(a[sortBy]).localeCompare(toString$2(b[sortBy]), undefined, {
      numeric: true
    });
  }

  function processField(key, value) {
    var field = null;
    if (typeof value === 'string') {
      // Label shortcut
      field = { key: key, label: value };
    } else if (typeof value === 'function') {
      // Formatter shortcut
      field = { key: key, formatter: value };
    } else if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object') {
      field = assign({}, value);
      field.key = field.key || key;
    } else if (value !== false) {
      // Fallback to just key
      field = { key: key };
    }
    return field;
  }

  var bTable = {
    mixins: [idMixin, listenOnRootMixin],
    render: function render(h) {
      var _this = this;

      var $slots = this.$slots;
      var $scoped = this.$scopedSlots;
      var fields = this.computedFields;
      var items = this.computedItems;

      // Build the caption
      var caption = h(false);
      if (this.caption || $slots['table-caption']) {
        var data = { style: this.captionStyles };
        if (!$slots['table-caption']) {
          data.domProps = { innerHTML: this.caption };
        }
        caption = h('caption', data, $slots['table-caption']);
      }

      // Build the colgroup
      var colgroup = $slots['table-colgroup'] ? h('colgroup', {}, $slots['table-colgroup']) : h(false);

      // factory function for thead and tfoot cells (th's)
      var makeHeadCells = function makeHeadCells() {
        var isFoot = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

        return fields.map(function (field, colIndex) {
          var data = {
            key: field.key,
            class: _this.fieldClasses(field),
            style: field.thStyle || {},
            attrs: {
              tabindex: field.sortable ? '0' : null,
              abbr: field.headerAbbr || null,
              title: field.headerTitle || null,
              'aria-colindex': String(colIndex + 1),
              'aria-label': field.sortable ? _this.localSortDesc && _this.localSortBy === field.key ? _this.labelSortAsc : _this.labelSortDesc : null,
              'aria-sort': field.sortable && _this.localSortBy === field.key ? _this.localSortDesc ? 'descending' : 'ascending' : null
            },
            on: {
              click: function click(evt) {
                evt.stopPropagation();
                evt.preventDefault();
                _this.headClicked(evt, field);
              },
              keydown: function keydown(evt) {
                var keyCode = evt.keyCode;
                if (keyCode === KeyCodes.ENTER || keyCode === KeyCodes.SPACE) {
                  evt.stopPropagation();
                  evt.preventDefault();
                  _this.headClicked(evt, field);
                }
              }
            }
          };
          var slot = isFoot && $scoped['FOOT_' + field.key] ? $scoped['FOOT_' + field.key] : $scoped['HEAD_' + field.key];
          if (slot) {
            slot = [slot({ label: field.label, column: field.key, field: field })];
          } else {
            data.domProps = { innerHTML: field.label };
          }
          return h('th', data, slot);
        });
      };

      // Build the thead
      var thead = h(false);
      if (this.isStacked !== true) {
        // If in always stacked mode (this.isStacked === true), then we don't bother rendering the thead
        thead = h('thead', { class: this.headClasses }, [h('tr', { class: this.theadTrClass }, makeHeadCells(false))]);
      }

      // Build the tfoot
      var tfoot = h(false);
      if (this.footClone && this.isStacked !== true) {
        // If in always stacked mode (this.isStacked === true), then we don't bother rendering the tfoot
        tfoot = h('tfoot', { class: this.footClasses }, [h('tr', { class: this.tfootTrClass }, makeHeadCells(true))]);
      }

      // Prepare the tbody rows
      var rows = [];

      // Add static Top Row slot (hidden in visibly stacked mode as we can't control the data-label)
      // If in always stacked mode, we don't bother rendering the row
      if ($scoped['top-row'] && this.isStacked !== true) {
        rows.push(h('tr', { key: 'top-row', class: ['b-table-top-row', this.tbodyTrClass] }, [$scoped['top-row']({ columns: fields.length, fields: fields })]));
      } else {
        rows.push(h(false));
      }

      // Add the item data rows
      items.forEach(function (item, rowIndex) {
        var detailsSlot = $scoped['row-details'];
        var rowShowDetails = Boolean(item._showDetails && detailsSlot);
        var detailsId = rowShowDetails ? _this.safeId('_details_' + rowIndex + '_') : null;
        var toggleDetailsFn = function toggleDetailsFn() {
          if (detailsSlot) {
            _this.$set(item, '_showDetails', !item._showDetails);
          }
        };
        // For each item data field in row
        var tds = fields.map(function (field, colIndex) {
          var data = {
            key: 'row-' + rowIndex + '-cell-' + colIndex,
            class: _this.tdClasses(field, item),
            attrs: _this.tdAttrs(field, item, colIndex),
            domProps: {}
          };
          var childNodes = void 0;
          if ($scoped[field.key]) {
            childNodes = [$scoped[field.key]({
              item: item,
              index: rowIndex,
              field: field,
              unformatted: lodash_get(item, field.key),
              value: _this.getFormattedValue(item, field),
              toggleDetails: toggleDetailsFn,
              detailsShowing: Boolean(item._showDetails)
            })];
            if (_this.isStacked) {
              // We wrap in a DIV to ensure rendered as a single cell when visually stacked!
              childNodes = [h('div', {}, [childNodes])];
            }
          } else {
            var formatted = _this.getFormattedValue(item, field);
            if (_this.isStacked) {
              // We innerHTML a DIV to ensure rendered as a single cell when visually stacked!
              childNodes = [h('div', formatted)];
            } else {
              // Non stacked
              childNodes = formatted;
            }
          }
          // Render either a td or th cell
          return h(field.isRowHeader ? 'th' : 'td', data, childNodes);
        });
        // Calculate the row number in the dataset (indexed from 1)
        var ariaRowIndex = null;
        if (_this.currentPage && _this.perPage && _this.perPage > 0) {
          ariaRowIndex = (_this.currentPage - 1) * _this.perPage + rowIndex + 1;
        }
        // Assemble and add the row
        rows.push(h('tr', {
          key: 'row-' + rowIndex,
          class: [_this.rowClasses(item), { 'b-table-has-details': rowShowDetails }],
          attrs: {
            'aria-describedby': detailsId,
            'aria-rowindex': ariaRowIndex,
            role: _this.isStacked ? 'row' : null
          },
          on: {
            click: function click(evt) {
              _this.rowClicked(evt, item, rowIndex);
            },
            dblclick: function dblclick(evt) {
              _this.rowDblClicked(evt, item, rowIndex);
            },
            mouseenter: function mouseenter(evt) {
              _this.rowHovered(evt, item, rowIndex);
            }
          }
        }, tds));
        // Row Details slot
        if (rowShowDetails) {
          var tdAttrs = { colspan: String(fields.length) };
          var trAttrs = { id: detailsId };
          if (_this.isStacked) {
            tdAttrs['role'] = 'cell';
            trAttrs['role'] = 'row';
          }
          var details = h('td', { attrs: tdAttrs }, [detailsSlot({
            item: item,
            index: rowIndex,
            fields: fields,
            toggleDetails: toggleDetailsFn
          })]);
          rows.push(h('tr', {
            key: 'details-' + rowIndex,
            class: ['b-table-details', _this.tbodyTrClass],
            attrs: trAttrs
          }, [details]));
        } else if (detailsSlot) {
          // Only add the placeholder if a the table has a row-details slot defined (but not shown)
          rows.push(h(false));
        }
      });

      // Empty Items / Empty Filtered Row slot
      if (this.showEmpty && (!items || items.length === 0)) {
        var empty = this.filter ? $slots['emptyfiltered'] : $slots['empty'];
        if (!empty) {
          empty = h('div', {
            class: ['text-center', 'my-2'],
            domProps: { innerHTML: this.filter ? this.emptyFilteredText : this.emptyText }
          });
        }
        empty = h('td', {
          attrs: {
            colspan: String(fields.length),
            role: this.isStacked ? 'cell' : null
          }
        }, [h('div', { attrs: { role: 'alert', 'aria-live': 'polite' } }, [empty])]);
        rows.push(h('tr', {
          key: 'empty-row',
          class: ['b-table-empty-row', this.tbodyTrClass],
          attrs: this.isStacked ? { role: 'row' } : {}
        }, [empty]));
      } else {
        rows.push(h(false));
      }

      // Static bottom row slot (hidden in visibly stacked mode as we can't control the data-label)
      // If in always stacked mode, we don't bother rendering the row
      if ($scoped['bottom-row'] && this.isStacked !== true) {
        rows.push(h('tr', { key: 'bottom-row', class: ['b-table-bottom-row', this.tbodyTrClass] }, [$scoped['bottom-row']({ columns: fields.length, fields: fields })]));
      } else {
        rows.push(h(false));
      }

      // Assemble the rows into the tbody
      var tbody = h('tbody', { class: this.bodyClasses, attrs: this.isStacked ? { role: 'rowgroup' } : {} }, rows);

      // Assemble table
      var table = h('table', {
        class: this.tableClasses,
        attrs: {
          id: this.safeId(),
          role: this.isStacked ? 'table' : null,
          'aria-busy': this.computedBusy ? 'true' : 'false',
          'aria-colcount': String(fields.length),
          'aria-rowcount': this.$attrs['aria-rowcount'] || this.items.length > this.perPage ? this.items.length : null
        }
      }, [caption, colgroup, thead, tfoot, tbody]);

      // Add responsive wrapper if needed and return table
      return this.isResponsive ? h('div', { class: this.responsiveClass }, [table]) : table;
    },
    data: function data() {
      return {
        localSortBy: this.sortBy || '',
        localSortDesc: this.sortDesc || false,
        localItems: [],
        // Note: filteredItems only used to determine if # of items changed
        filteredItems: [],
        localBusy: false
      };
    },

    props: {
      items: {
        type: [Array, Function],
        default: function _default() {
          return [];
        }
      },
      fields: {
        type: [Object, Array],
        default: null
      },
      sortBy: {
        type: String,
        default: null
      },
      sortDesc: {
        type: Boolean,
        default: false
      },
      sortDirection: {
        type: String,
        default: 'asc',
        validator: function validator(direction) {
          return arrayIncludes(['asc', 'desc', 'last'], direction);
        }
      },
      caption: {
        type: String,
        default: null
      },
      captionTop: {
        type: Boolean,
        default: false
      },
      striped: {
        type: Boolean,
        default: false
      },
      bordered: {
        type: Boolean,
        default: false
      },
      outlined: {
        type: Boolean,
        default: false
      },
      dark: {
        type: Boolean,
        default: function _default() {
          if (this && typeof this.inverse === 'boolean') {
            // Deprecate inverse
            warn("b-table: prop 'inverse' has been deprecated. Use 'dark' instead");
            return this.dark;
          }
          return false;
        }
      },
      inverse: {
        // Deprecated in v1.0.0 in favor of `dark`
        type: Boolean,
        default: null
      },
      hover: {
        type: Boolean,
        default: false
      },
      small: {
        type: Boolean,
        default: false
      },
      fixed: {
        type: Boolean,
        default: false
      },
      footClone: {
        type: Boolean,
        default: false
      },
      responsive: {
        type: [Boolean, String],
        default: false
      },
      stacked: {
        type: [Boolean, String],
        default: false
      },
      headVariant: {
        type: String,
        default: ''
      },
      footVariant: {
        type: String,
        default: ''
      },
      theadClass: {
        type: [String, Array],
        default: null
      },
      theadTrClass: {
        type: [String, Array],
        default: null
      },
      tbodyClass: {
        type: [String, Array],
        default: null
      },
      tbodyTrClass: {
        type: [String, Array],
        default: null
      },
      tfootClass: {
        type: [String, Array],
        default: null
      },
      tfootTrClass: {
        type: [String, Array],
        default: null
      },
      perPage: {
        type: Number,
        default: 0
      },
      currentPage: {
        type: Number,
        default: 1
      },
      filter: {
        type: [String, RegExp, Function],
        default: null
      },
      sortCompare: {
        type: Function,
        default: null
      },
      noLocalSorting: {
        type: Boolean,
        default: false
      },
      noProviderPaging: {
        type: Boolean,
        default: false
      },
      noProviderSorting: {
        type: Boolean,
        default: false
      },
      noProviderFiltering: {
        type: Boolean,
        default: false
      },
      noSortReset: {
        type: Boolean,
        default: false
      },
      busy: {
        type: Boolean,
        default: false
      },
      value: {
        type: Array,
        default: function _default() {
          return [];
        }
      },
      labelSortAsc: {
        type: String,
        default: 'Click to sort Ascending'
      },
      labelSortDesc: {
        type: String,
        default: 'Click to sort Descending'
      },
      showEmpty: {
        type: Boolean,
        default: false
      },
      emptyText: {
        type: String,
        default: 'There are no records to show'
      },
      emptyFilteredText: {
        type: String,
        default: 'There are no records matching your request'
      },
      apiUrl: {
        // Passthrough prop. Passed to the context object. Not used by b-table directly
        type: String,
        default: ''
      }
    },
    watch: {
      items: function items(newVal, oldVal) {
        if (oldVal !== newVal) {
          this._providerUpdate();
        }
      },
      context: function context(newVal, oldVal) {
        if (!looseEqual(newVal, oldVal)) {
          this.$emit('context-changed', newVal);
        }
      },
      filteredItems: function filteredItems(newVal, oldVal) {
        if (this.localFiltering && newVal.length !== oldVal.length) {
          // Emit a filtered notification event, as number of filtered items has changed
          this.$emit('filtered', newVal);
        }
      },
      sortDesc: function sortDesc(newVal, oldVal) {
        if (newVal === this.localSortDesc) {
          return;
        }
        this.localSortDesc = newVal || false;
      },
      localSortDesc: function localSortDesc(newVal, oldVal) {
        // Emit update to sort-desc.sync
        if (newVal !== oldVal) {
          this.$emit('update:sortDesc', newVal);
          if (!this.noProviderSorting) {
            this._providerUpdate();
          }
        }
      },
      sortBy: function sortBy(newVal, oldVal) {
        if (newVal === this.localSortBy) {
          return;
        }
        this.localSortBy = newVal || null;
      },
      localSortBy: function localSortBy(newVal, oldVal) {
        if (newVal !== oldVal) {
          this.$emit('update:sortBy', newVal);
          if (!this.noProviderSorting) {
            this._providerUpdate();
          }
        }
      },
      perPage: function perPage(newVal, oldVal) {
        if (oldVal !== newVal && !this.noProviderPaging) {
          this._providerUpdate();
        }
      },
      currentPage: function currentPage(newVal, oldVal) {
        if (oldVal !== newVal && !this.noProviderPaging) {
          this._providerUpdate();
        }
      },
      filter: function filter(newVal, oldVal) {
        if (oldVal !== newVal && !this.noProviderFiltering) {
          this._providerUpdate();
        }
      },
      localBusy: function localBusy(newVal, oldVal) {
        if (newVal !== oldVal) {
          this.$emit('update:busy', newVal);
        }
      }
    },
    mounted: function mounted() {
      var _this2 = this;

      this.localSortBy = this.sortBy;
      this.localSortDesc = this.sortDesc;
      if (this.hasProvider) {
        this._providerUpdate();
      }
      this.listenOnRoot('bv::refresh::table', function (id) {
        if (id === _this2.id || id === _this2) {
          _this2._providerUpdate();
        }
      });
    },

    computed: {
      isStacked: function isStacked() {
        return this.stacked === '' ? true : this.stacked;
      },
      isResponsive: function isResponsive() {
        var responsive = this.responsive === '' ? true : this.responsive;
        return this.isStacked ? false : responsive;
      },
      responsiveClass: function responsiveClass() {
        return this.isResponsive === true ? 'table-responsive' : this.isResponsive ? 'table-responsive-' + this.responsive : '';
      },
      tableClasses: function tableClasses() {
        return ['table', 'b-table', this.striped ? 'table-striped' : '', this.hover ? 'table-hover' : '', this.dark ? 'table-dark' : '', this.bordered ? 'table-bordered' : '', this.small ? 'table-sm' : '', this.outlined ? 'border' : '', this.fixed ? 'b-table-fixed' : '', this.isStacked === true ? 'b-table-stacked' : this.isStacked ? 'b-table-stacked-' + this.stacked : ''];
      },
      headClasses: function headClasses() {
        return [this.headVariant ? 'thead-' + this.headVariant : '', this.theadClass];
      },
      bodyClasses: function bodyClasses() {
        return [this.tbodyClass];
      },
      footClasses: function footClasses() {
        var variant = this.footVariant || this.headVariant || null;
        return [variant ? 'thead-' + variant : '', this.tfootClass];
      },
      captionStyles: function captionStyles() {
        // Move caption to top
        return this.captionTop ? { captionSide: 'top' } : {};
      },
      hasProvider: function hasProvider() {
        return this.items instanceof Function;
      },
      localFiltering: function localFiltering() {
        return this.hasProvider ? this.noProviderFiltering : true;
      },
      localSorting: function localSorting() {
        return this.hasProvider ? this.noProviderSorting : !this.noLocalSorting;
      },
      localPaging: function localPaging() {
        return this.hasProvider ? this.noProviderPaging : true;
      },
      context: function context() {
        return {
          perPage: this.perPage,
          currentPage: this.currentPage,
          filter: this.filter,
          sortBy: this.localSortBy,
          sortDesc: this.localSortDesc,
          apiUrl: this.apiUrl
        };
      },
      computedFields: function computedFields() {
        var _this3 = this;

        // We normalize fields into an array of objects
        // [ { key:..., label:..., ...}, {...}, ..., {..}]
        var fields = [];
        if (isArray(this.fields)) {
          // Normalize array Form
          this.fields.filter(function (f) {
            return f;
          }).forEach(function (f) {
            if (typeof f === 'string') {
              fields.push({ key: f, label: lodash_startcase(f) });
            } else if ((typeof f === 'undefined' ? 'undefined' : _typeof(f)) === 'object' && f.key && typeof f.key === 'string') {
              // Full object definition. We use assign so that we don't mutate the original
              fields.push(assign({}, f));
            } else if ((typeof f === 'undefined' ? 'undefined' : _typeof(f)) === 'object' && keys(f).length === 1) {
              // Shortcut object (i.e. { 'foo_bar': 'This is Foo Bar' }
              var key = keys(f)[0];
              var field = processField(key, f[key]);
              if (field) {
                fields.push(field);
              }
            }
          });
        } else if (this.fields && _typeof(this.fields) === 'object' && keys(this.fields).length > 0) {
          // Normalize object Form
          keys(this.fields).forEach(function (key) {
            var field = processField(key, _this3.fields[key]);
            if (field) {
              fields.push(field);
            }
          });
        }
        // If no field provided, take a sample from first record (if exits)
        if (fields.length === 0 && this.computedItems.length > 0) {
          var sample = this.computedItems[0];
          var ignoredKeys = ['_rowVariant', '_cellVariants', '_showDetails'];
          keys(sample).forEach(function (k) {
            if (!ignoredKeys.includes(k)) {
              fields.push({ key: k, label: lodash_startcase(k) });
            }
          });
        }
        // Ensure we have a unique array of fields and that they have String labels
        var memo = {};
        return fields.filter(function (f) {
          if (!memo[f.key]) {
            memo[f.key] = true;
            f.label = typeof f.label === 'string' ? f.label : lodash_startcase(f.key);
            return true;
          }
          return false;
        });
      },
      computedItems: function computedItems() {
        // Grab some props/data to ensure reactivity
        var perPage = this.perPage;
        var currentPage = this.currentPage;
        var filter = this.filter;
        var sortBy = this.localSortBy;
        var sortDesc = this.localSortDesc;
        var sortCompare = this.sortCompare;
        var localFiltering = this.localFiltering;
        var localSorting = this.localSorting;
        var localPaging = this.localPaging;
        var items = this.hasProvider ? this.localItems : this.items;
        if (!items) {
          this.$nextTick(this._providerUpdate);
          return [];
        }
        // Array copy for sorting, filtering, etc.
        items = items.slice();
        // Apply local filter
        if (filter && localFiltering) {
          if (filter instanceof Function) {
            items = items.filter(filter);
          } else {
            var regex = void 0;
            if (filter instanceof RegExp) {
              regex = filter;
            } else {
              regex = new RegExp('.*' + filter + '.*', 'ig');
            }
            items = items.filter(function (item) {
              var test = regex.test(recToString(item));
              regex.lastIndex = 0;
              return test;
            });
          }
        }
        if (localFiltering) {
          // Make a local copy of filtered items to trigger filtered event
          this.filteredItems = items.slice();
        }
        // Apply local Sort
        if (sortBy && localSorting) {
          items = stableSort(items, function (a, b) {
            var ret = null;
            if (typeof sortCompare === 'function') {
              // Call user provided sortCompare routine
              ret = sortCompare(a, b, sortBy);
            }
            if (ret === null || ret === undefined) {
              // Fallback to defaultSortCompare if sortCompare not defined or returns null
              ret = defaultSortCompare(a, b, sortBy);
            }
            // Handle sorting direction
            return (ret || 0) * (sortDesc ? -1 : 1);
          });
        }
        // Apply local pagination
        if (Boolean(perPage) && localPaging) {
          // Grab the current page of data (which may be past filtered items)
          items = items.slice((currentPage - 1) * perPage, currentPage * perPage);
        }
        // Update the value model with the filtered/sorted/paginated data set
        this.$emit('input', items);
        return items;
      },
      computedBusy: function computedBusy() {
        return this.busy || this.localBusy;
      }
    },
    methods: {
      keys: keys,
      fieldClasses: function fieldClasses(field) {
        return [field.sortable ? 'sorting' : '', field.sortable && this.localSortBy === field.key ? 'sorting_' + (this.localSortDesc ? 'desc' : 'asc') : '', field.variant ? 'table-' + field.variant : '', field.class ? field.class : '', field.thClass ? field.thClass : ''];
      },
      tdClasses: function tdClasses(field, item) {
        var cellVariant = '';
        if (item._cellVariants && item._cellVariants[field.key]) {
          cellVariant = (this.dark ? 'bg' : 'table') + '-' + item._cellVariants[field.key];
        }
        return [field.variant && !cellVariant ? (this.dark ? 'bg' : 'table') + '-' + field.variant : '', cellVariant, field.class ? field.class : '', this.getTdValues(item, field.key, field.tdClass, '')];
      },
      tdAttrs: function tdAttrs(field, item, colIndex) {
        var attrs = {};
        attrs['aria-colindex'] = String(colIndex + 1);
        if (this.isStacked) {
          // Generate the "header cell" label content in stacked mode
          attrs['data-label'] = field.label;
          if (field.isRowHeader) {
            attrs['role'] = 'rowheader';
          } else {
            attrs['role'] = 'cell';
          }
        }
        return assign({}, attrs, this.getTdValues(item, field.key, field.tdAttr, {}));
      },
      rowClasses: function rowClasses(item) {
        return [item._rowVariant ? (this.dark ? 'bg' : 'table') + '-' + item._rowVariant : '', this.tbodyTrClass];
      },
      rowClicked: function rowClicked(e, item, index) {
        if (this.stopIfBusy(e)) {
          // If table is busy (via provider) then don't propagate
          return;
        }
        this.$emit('row-clicked', item, index, e);
      },
      rowDblClicked: function rowDblClicked(e, item, index) {
        if (this.stopIfBusy(e)) {
          // If table is busy (via provider) then don't propagate
          return;
        }
        this.$emit('row-dblclicked', item, index, e);
      },
      rowHovered: function rowHovered(e, item, index) {
        if (this.stopIfBusy(e)) {
          // If table is busy (via provider) then don't propagate
          return;
        }
        this.$emit('row-hovered', item, index, e);
      },
      headClicked: function headClicked(e, field) {
        var _this4 = this;

        if (this.stopIfBusy(e)) {
          // If table is busy (via provider) then don't propagate
          return;
        }
        var sortChanged = false;
        var toggleLocalSortDesc = function toggleLocalSortDesc() {
          var sortDirection = field.sortDirection || _this4.sortDirection;
          if (sortDirection === 'asc') {
            _this4.localSortDesc = false;
          } else if (sortDirection === 'desc') {
            _this4.localSortDesc = true;
          }
        };
        if (field.sortable) {
          if (field.key === this.localSortBy) {
            // Change sorting direction on current column
            this.localSortDesc = !this.localSortDesc;
          } else {
            // Start sorting this column ascending
            this.localSortBy = field.key;
            toggleLocalSortDesc();
          }
          sortChanged = true;
        } else if (this.localSortBy && !this.noSortReset) {
          this.localSortBy = null;
          toggleLocalSortDesc();
          sortChanged = true;
        }
        this.$emit('head-clicked', field.key, field, e);
        if (sortChanged) {
          // Sorting parameters changed
          this.$emit('sort-changed', this.context);
        }
      },
      stopIfBusy: function stopIfBusy(evt) {
        if (this.computedBusy) {
          // If table is busy (via provider) then don't propagate
          evt.preventDefault();
          evt.stopPropagation();
          return true;
        }
        return false;
      },
      refresh: function refresh() {
        // Expose refresh method
        if (this.hasProvider) {
          this._providerUpdate();
        }
      },
      _providerSetLocal: function _providerSetLocal(items) {
        this.localItems = items && items.length > 0 ? items.slice() : [];
        this.localBusy = false;
        this.$emit('refreshed');
        // Deprecated root emit
        this.emitOnRoot('table::refreshed', this.id);
        // New root emit
        if (this.id) {
          this.emitOnRoot('bv::table::refreshed', this.id);
        }
      },
      _providerUpdate: function _providerUpdate() {
        var _this5 = this;

        // Refresh the provider items
        if (this.computedBusy || !this.hasProvider) {
          // Don't refresh remote data if we are 'busy' or if no provider
          return;
        }
        // Set internal busy state
        this.localBusy = true;
        // Call provider function with context and optional callback
        var data = this.items(this.context, this._providerSetLocal);
        if (data && data.then && typeof data.then === 'function') {
          // Provider returned Promise
          data.then(function (items) {
            _this5._providerSetLocal(items);
          });
        } else {
          // Provider returned Array data
          this._providerSetLocal(data);
        }
      },
      getTdValues: function getTdValues(item, key, tdValue, defValue) {
        var parent = this.$parent;
        if (tdValue) {
          if (typeof tdValue === 'function') {
            var value = lodash_get(item, key);
            return tdValue(value, key, item);
          } else if (typeof tdValue === 'string' && typeof parent[tdValue] === 'function') {
            var _value = lodash_get(item, key);
            return parent[tdValue](_value, key, item);
          }
          return tdValue;
        }
        return defValue;
      },
      getFormattedValue: function getFormattedValue(item, field) {
        var key = field.key;
        var formatter = field.formatter;
        var parent = this.$parent;
        var value = lodash_get(item, key);
        if (formatter) {
          if (typeof formatter === 'function') {
            value = formatter(value, key, item);
          } else if (typeof formatter === 'string' && typeof parent[formatter] === 'function') {
            value = parent[formatter](value, key, item);
          }
        }
        return value;
      }
    }
  };

  var components$x = {
    bTable: bTable
  };

  var VuePlugin$z = {
    install: function install(Vue) {
      registerComponents(Vue, components$x);
    }
  };

  vueUse(VuePlugin$z);

  // Helper component
  var bTabButtonHelper = {
    name: 'bTabButtonHelper',
    props: {
      content: { type: [String, Array], default: '' },
      href: { type: String, default: '#' },
      posInSet: { type: Number, default: null },
      setSize: { type: Number, default: null },
      controls: { type: String, default: null },
      id: { type: String, default: null },
      active: { type: Boolean, default: false },
      disabled: { type: Boolean, default: false },
      linkClass: { default: null },
      itemClass: { default: null },
      noKeyNav: { type: Boolean, default: false }
    },
    render: function render(h) {
      var link = h('a', {
        class: ['nav-link', { active: this.active, disabled: this.disabled }, this.linkClass],
        attrs: {
          role: 'tab',
          tabindex: this.noKeyNav ? null : '-1',
          href: this.href,
          id: this.id,
          disabled: this.disabled,
          'aria-selected': this.active ? 'true' : 'false',
          'aria-setsize': this.setSize,
          'aria-posinset': this.posInSet,
          'aria-controls': this.controls
        },
        on: {
          click: this.handleClick,
          keydown: this.handleClick
        }
      }, this.content);
      return h('li', { class: ['nav-item', this.itemClass], attrs: { role: 'presentation' } }, [link]);
    },

    methods: {
      handleClick: function handleClick(evt) {
        function stop() {
          evt.preventDefault();
          evt.stopPropagation();
        }
        if (evt.type !== 'click' && this.noKeyNav) {
          return;
        }
        if (this.disabled) {
          stop();
          return;
        }
        if (evt.type === 'click' || evt.keyCode === KeyCodes.ENTER || evt.keyCode === KeyCodes.SPACE) {
          stop();
          this.$emit('click', evt);
        }
      }
    }
  };

  var bTabs = {
    mixins: [idMixin],
    render: function render(h) {
      var _this = this,
          _ref;

      var tabs = this.tabs;
      // Navigation 'buttons'
      var buttons = tabs.map(function (tab, index) {
        return h(bTabButtonHelper, {
          key: index,
          props: {
            content: tab.$slots.title || tab.title,
            href: tab.href,
            id: tab.controlledBy || _this.safeId('_BV_tab_' + (index + 1) + '_'),
            active: tab.localActive,
            disabled: tab.disabled,
            setSize: tabs.length,
            posInSet: index + 1,
            controls: _this.safeId('_BV_tab_container_'),
            linkClass: tab.titleLinkClass,
            itemClass: tab.titleItemClass,
            noKeyNav: _this.noKeyNav
          },
          on: {
            click: function click(evt) {
              _this.setTab(index);
            }
          }
        });
      });

      // Nav 'button' wrapper
      var navs = h('ul', {
        class: ['nav', (_ref = {}, defineProperty(_ref, 'nav-' + this.navStyle, !this.noNavStyle), defineProperty(_ref, 'card-header-' + this.navStyle, this.card && !this.vertical), defineProperty(_ref, 'card-header', this.card && this.vertical), defineProperty(_ref, 'h-100', this.card && this.vertical), defineProperty(_ref, 'flex-column', this.vertical), defineProperty(_ref, 'border-bottom-0', this.vertical), defineProperty(_ref, 'rounded-0', this.vertical), defineProperty(_ref, 'small', this.small), _ref), this.navClass],
        attrs: {
          role: 'tablist',
          tabindex: this.noKeyNav ? null : '0',
          id: this.safeId('_BV_tab_controls_')
        },
        on: { keydown: this.onKeynav }
      }, [buttons, this.$slots.tabs]);
      navs = h('div', {
        class: [{
          'card-header': this.card && !this.vertical && !(this.end || this.bottom),
          'card-footer': this.card && !this.vertical && (this.end || this.bottom),
          'col-auto': this.vertical
        }, this.navWrapperClass]
      }, [navs]);

      var empty = void 0;
      if (tabs && tabs.length) {
        empty = h(false);
      } else {
        empty = h('div', { class: ['tab-pane', 'active', { 'card-body': this.card }] }, this.$slots.empty);
      }

      // Main content section
      var content = h('div', {
        ref: 'tabsContainer',
        class: ['tab-content', { col: this.vertical }, this.contentClass],
        attrs: { id: this.safeId('_BV_tab_container_') }
      }, [this.$slots.default, empty]);

      // Render final output
      return h(this.tag, {
        class: ['tabs', { row: this.vertical, 'no-gutters': this.vertical && this.card }],
        attrs: { id: this.safeId() }
      }, [this.end || this.bottom ? content : h(false), [navs], this.end || this.bottom ? h(false) : content]);
    },
    data: function data() {
      return {
        currentTab: this.value,
        tabs: []
      };
    },

    props: {
      tag: {
        type: String,
        default: 'div'
      },
      card: {
        type: Boolean,
        default: false
      },
      small: {
        type: Boolean,
        default: false
      },
      value: {
        type: Number,
        default: null
      },
      pills: {
        type: Boolean,
        default: false
      },
      vertical: {
        type: Boolean,
        default: false
      },
      bottom: {
        type: Boolean,
        default: false
      },
      end: {
        // Synonym for 'bottom'
        type: Boolean,
        default: false
      },
      noFade: {
        type: Boolean,
        default: false
      },
      noNavStyle: {
        type: Boolean,
        default: false
      },
      noKeyNav: {
        type: Boolean,
        default: false
      },
      lazy: {
        // This prop is sniffed by the tab child
        type: Boolean,
        default: false
      },
      contentClass: {
        type: [String, Array, Object],
        default: null
      },
      navClass: {
        type: [String, Array, Object],
        default: null
      },
      navWrapperClass: {
        type: [String, Array, Object],
        default: null
      }
    },
    watch: {
      currentTab: function currentTab(val, old) {
        if (val === old) {
          return;
        }
        this.$root.$emit('changed::tab', this, val, this.tabs[val]);
        this.$emit('input', val);
        this.tabs[val].$emit('click');
      },
      value: function value(val, old) {
        if (val === old) {
          return;
        }
        if (typeof old !== 'number') {
          old = 0;
        }
        // Moving left or right?
        var direction = val < old ? -1 : 1;
        this.setTab(val, false, direction);
      }
    },
    computed: {
      fade: function fade() {
        // This computed prop is sniffed by the tab child
        return !this.noFade;
      },
      navStyle: function navStyle() {
        return this.pills ? 'pills' : 'tabs';
      }
    },
    methods: {
      /**
       * Util: Return the sign of a number (as -1, 0, or 1)
       */
      sign: function sign(x) {
        return x === 0 ? 0 : x > 0 ? 1 : -1;
      },

      /*
           * handle keyboard navigation
           */
      onKeynav: function onKeynav(evt) {
        if (this.noKeyNav) {
          return;
        }
        var key = evt.keyCode;
        var shift = evt.shiftKey;
        function stop() {
          evt.preventDefault();
          evt.stopPropagation();
        }
        if (key === KeyCodes.UP || key === KeyCodes.LEFT) {
          stop();
          if (shift) {
            this.setTab(0, false, 1);
          } else {
            this.previousTab();
          }
        } else if (key === KeyCodes.DOWN || key === KeyCodes.RIGHT) {
          stop();
          if (shift) {
            this.setTab(this.tabs.length - 1, false, -1);
          } else {
            this.nextTab();
          }
        }
      },

      /**
       * Move to next tab
       */
      nextTab: function nextTab() {
        this.setTab(this.currentTab + 1, false, 1);
      },

      /**
       * Move to previous tab
       */
      previousTab: function previousTab() {
        this.setTab(this.currentTab - 1, false, -1);
      },

      /**
       * Set active tab on the tabs collection and the child 'tab' component
       * Index is the tab we want to activate. Direction is the direction we are moving
       * so if the tab we requested is disabled, we can skip over it.
       * Force is used by updateTabs to ensure we have cleared any previous active tabs.
       */
      setTab: function setTab(index, force, direction) {
        var _this2 = this;

        direction = this.sign(direction || 0);
        index = index || 0;
        // Prevent setting same tab and infinite loops!
        if (!force && index === this.currentTab) {
          return;
        }
        var tab = this.tabs[index];
        // Don't go beyond indexes!
        if (!tab) {
          // Reset the v-model to the current Tab
          this.$emit('input', this.currentTab);
          return;
        }
        // Ignore or Skip disabled
        if (tab.disabled) {
          if (direction) {
            // Skip to next non disabled tab in specified direction (recursive)
            this.setTab(index + direction, force, direction);
          }
          return;
        }
        // Activate requested current tab, and deactivte any old tabs
        this.tabs.forEach(function (t) {
          if (t === tab) {
            // Set new tab as active
            _this2.$set(t, 'localActive', true);
          } else {
            // Ensure non current tabs are not active
            _this2.$set(t, 'localActive', false);
          }
        });
        // Update currentTab
        this.currentTab = index;
      },

      /**
       * Dynamically update tabs list
       */
      updateTabs: function updateTabs() {
        // Probe tabs
        this.tabs = this.$children.filter(function (child) {
          return child._isTab;
        });
        // Set initial active tab
        var tabIndex = null;
        // Find *last* active non-dsabled tab in current tabs
        // We trust tab state over currentTab
        this.tabs.forEach(function (tab, index) {
          if (tab.localActive && !tab.disabled) {
            tabIndex = index;
          }
        });
        // Else try setting to currentTab
        if (tabIndex === null) {
          if (this.currentTab >= this.tabs.length) {
            // Handle last tab being removed
            this.setTab(this.tabs.length - 1, true, -1);
            return;
          } else if (this.tabs[this.currentTab] && !this.tabs[this.currentTab].disabled) {
            tabIndex = this.currentTab;
          }
        }
        // Else find *first* non-disabled tab in current tabs
        if (tabIndex === null) {
          this.tabs.forEach(function (tab, index) {
            if (!tab.disabled && tabIndex === null) {
              tabIndex = index;
            }
          });
        }
        this.setTab(tabIndex || 0, true, 0);
      }
    },
    mounted: function mounted() {
      this.updateTabs();
      // Observe Child changes so we can notify tabs change
      observeDOM(this.$refs.tabsContainer, this.updateTabs.bind(this), {
        subtree: false
      });
    }
  };

  var bTab = {
    mixins: [idMixin],
    render: function render(h) {
      var content = h(false);
      if (this.localActive || !this.computedLazy) {
        content = h(this.tag, {
          ref: 'panel',
          class: this.tabClasses,
          directives: [{ name: 'show', value: this.localActive }],
          attrs: {
            role: 'tabpanel',
            id: this.safeId(),
            'aria-hidden': this.localActive ? 'false' : 'true',
            'aria-expanded': this.localActive ? 'true' : 'false',
            'aria-lablelledby': this.controlledBy || null
          }
        }, [this.$slots.default]);
      }
      return h('transition', {
        props: { mode: 'out-in' },
        on: {
          beforeEnter: this.beforeEnter,
          beforeLeave: this.beforeLeave
        }
      }, [content]);
    },

    methods: {
      beforeEnter: function beforeEnter() {
        var _this = this;

        // change opacity 1 frame after display
        // otherwise css transition won't happen
        window.requestAnimationFrame(function () {
          _this.show = true;
        });
      },
      beforeLeave: function beforeLeave() {
        this.show = false;
      }
    },
    data: function data() {
      return {
        localActive: this.active && !this.disabled,
        show: false
      };
    },
    mounted: function mounted() {
      this.show = this.localActive;
    },

    computed: {
      tabClasses: function tabClasses() {
        return ['tab-pane', this.$parent && this.$parent.card && !this.noBody ? 'card-body' : '', this.show ? 'show' : '', this.computedFade ? 'fade' : '', this.disabled ? 'disabled' : '', this.localActive ? 'active' : ''];
      },
      controlledBy: function controlledBy() {
        return this.buttonId || this.safeId('__BV_tab_button__');
      },
      computedFade: function computedFade() {
        return this.$parent.fade;
      },
      computedLazy: function computedLazy() {
        return this.$parent.lazy;
      },
      _isTab: function _isTab() {
        // For parent sniffing of child
        return true;
      }
    },
    props: {
      active: {
        type: Boolean,
        default: false
      },
      tag: {
        type: String,
        default: 'div'
      },
      buttonId: {
        type: String,
        default: ''
      },
      title: {
        type: String,
        default: ''
      },
      titleItemClass: {
        // Sniffed by tabs.vue and added to nav 'li.nav-item'
        type: [String, Array, Object],
        default: null
      },
      titleLinkClass: {
        // Sniffed by tabs.vue and added to nav 'a.nav-link'
        type: [String, Array, Object],
        default: null
      },
      headHtml: {
        // Is this actually ever used?
        type: String,
        default: null
      },
      disabled: {
        type: Boolean,
        default: false
      },
      noBody: {
        type: Boolean,
        default: false
      },
      href: {
        type: String,
        default: '#'
      }
    }
  };

  var components$y = {
    bTabs: bTabs,
    bTab: bTab
  };

  var VuePlugin$A = {
    install: function install(Vue) {
      registerComponents(Vue, components$y);
    }
  };

  vueUse(VuePlugin$A);

  var bTooltip = {
    mixins: [toolpopMixin],
    render: function render(h) {
      return h('div', { class: ['d-none'], style: { display: 'none' }, attrs: { 'aria-hidden': true } }, [h('div', { ref: 'title' }, this.$slots.default)]);
    },
    data: function data() {
      return {};
    },

    props: {
      title: {
        type: String,
        default: ''
      },
      triggers: {
        type: [String, Array],
        default: 'hover focus'
      },
      placement: {
        type: String,
        default: 'top'
      }
    },
    methods: {
      createToolpop: function createToolpop() {
        // getTarget is in toolpop mixin
        var target = this.getTarget();
        if (target) {
          this._toolpop = new ToolTip(target, this.getConfig(), this.$root);
        } else {
          this._toolpop = null;
          warn("b-tooltip: 'target' element not found!");
        }
        return this._toolpop;
      }
    }
  };

  var components$z = {
    bTooltip: bTooltip
  };

  var VuePlugin$B = {
    install: function install(Vue) {
      registerComponents(Vue, components$z);
    }
  };

  vueUse(VuePlugin$B);



  var components$A = /*#__PURE__*/Object.freeze({
    Alert: VuePlugin,
    Badge: VuePlugin$1,
    Breadcrumb: VuePlugin$2,
    Button: VuePlugin$3,
    ButtonToolbar: VuePlugin$5,
    ButtonGroup: VuePlugin$4,
    Card: VuePlugin$7,
    Carousel: VuePlugin$8,
    Collapse: VuePlugin$b,
    Dropdown: VuePlugin$c,
    Embed: VuePlugin$d,
    Form: VuePlugin$e,
    FormGroup: VuePlugin$f,
    FormInput: VuePlugin$i,
    FormTextarea: VuePlugin$j,
    FormFile: VuePlugin$k,
    FormCheckbox: VuePlugin$g,
    FormRadio: VuePlugin$h,
    FormSelect: VuePlugin$l,
    Image: VuePlugin$m,
    InputGroup: VuePlugin$6,
    Jumbotron: VuePlugin$n,
    Layout: VuePlugin$9,
    Link: VuePlugin$o,
    ListGroup: VuePlugin$p,
    Media: VuePlugin$q,
    Modal: VuePlugin$s,
    Nav: VuePlugin$t,
    Navbar: VuePlugin$u,
    Pagination: VuePlugin$v,
    PaginationNav: VuePlugin$w,
    Popover: VuePlugin$x,
    Progress: VuePlugin$y,
    Table: VuePlugin$z,
    Tabs: VuePlugin$A,
    Tooltip: VuePlugin$B
  });

  /*
   * ScrollSpy class definition
   */

  /*
   * Constants / Defaults
   */

  var NAME$2 = 'v-b-scrollspy';
  var ACTIVATE_EVENT = 'bv::scrollspy::activate';

  var Default = {
    element: 'body',
    offset: 10,
    method: 'auto',
    throttle: 75
  };

  var DefaultType = {
    element: '(string|element|component)',
    offset: 'number',
    method: 'string',
    throttle: 'number'
  };

  var ClassName$2 = {
    DROPDOWN_ITEM: 'dropdown-item',
    ACTIVE: 'active'
  };

  var Selector$3 = {
    ACTIVE: '.active',
    NAV_LIST_GROUP: '.nav, .list-group',
    NAV_LINKS: '.nav-link',
    NAV_ITEMS: '.nav-item',
    LIST_ITEMS: '.list-group-item',
    DROPDOWN: '.dropdown, .dropup',
    DROPDOWN_ITEMS: '.dropdown-item',
    DROPDOWN_TOGGLE: '.dropdown-toggle'
  };

  var OffsetMethod = {
    OFFSET: 'offset',
    POSITION: 'position'

    // HREFs must start with # but can be === '#', or start with '#/' or '#!' (which can be router links)
  };var HREF_REGEX = /^#[^/!]+/;

  // Transition Events
  var TransitionEndEvents$2 = ['webkitTransitionEnd', 'transitionend', 'otransitionend', 'oTransitionEnd'];

  /*
   * Utility Methods
   */

  // Better var type detection
  /* istanbul ignore next: not easy to test */
  function toType(obj) {
    return {}.toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase();
  }

  // Check config properties for expected types
  /* istanbul ignore next: not easy to test */
  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 && isElement(value) ? 'element' : toType(value);
        // handle Vue instances
        valueType = value && value._isVue ? 'component' : valueType;

        if (!new RegExp(expectedTypes).test(valueType)) {
          warn(componentName + ': Option "' + property + '" provided type "' + valueType + '", but expected type "' + expectedTypes + '"');
        }
      }
    }
  }

  /*
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  /* istanbul ignore next: not easy to test */

  var ScrollSpy = function () {
    function ScrollSpy(element, config, $root) {
      classCallCheck(this, ScrollSpy);

      // The element we activate links in
      this.$el = element;
      this.$scroller = null;
      this.$selector = [Selector$3.NAV_LINKS, Selector$3.LIST_ITEMS, Selector$3.DROPDOWN_ITEMS].join(',');
      this.$offsets = [];
      this.$targets = [];
      this.$activeTarget = null;
      this.$scrollHeight = 0;
      this.$resizeTimeout = null;
      this.$obs_scroller = null;
      this.$obs_targets = null;
      this.$root = $root || null;
      this.$config = null;

      this.updateConfig(config);
    }

    createClass(ScrollSpy, [{
      key: 'updateConfig',
      value: function updateConfig(config, $root) {
        if (this.$scroller) {
          // Just in case out scroll element has changed
          this.unlisten();
          this.$scroller = null;
        }
        var cfg = assign({}, this.constructor.Default, config);
        if ($root) {
          this.$root = $root;
        }
        typeCheckConfig(this.constructor.Name, cfg, this.constructor.DefaultType);
        this.$config = cfg;

        if (this.$root) {
          var self = this;
          this.$root.$nextTick(function () {
            self.listen();
          });
        } else {
          this.listen();
        }
      }
    }, {
      key: 'dispose',
      value: function dispose() {
        this.unlisten();
        clearTimeout(this.$resizeTimeout);
        this.$resizeTimeout = null;
        this.$el = null;
        this.$config = null;
        this.$scroller = null;
        this.$selector = null;
        this.$offsets = null;
        this.$targets = null;
        this.$activeTarget = null;
        this.$scrollHeight = null;
      }
    }, {
      key: 'listen',
      value: function listen() {
        var _this = this;

        var scroller = this.getScroller();
        if (scroller && scroller.tagName !== 'BODY') {
          eventOn(scroller, 'scroll', this);
        }
        eventOn(window, 'scroll', this);
        eventOn(window, 'resize', this);
        eventOn(window, 'orientationchange', this);
        TransitionEndEvents$2.forEach(function (evtName) {
          eventOn(window, evtName, _this);
        });
        this.setObservers(true);
        // Scedule a refresh
        this.handleEvent('refresh');
      }
    }, {
      key: 'unlisten',
      value: function unlisten() {
        var _this2 = this;

        var scroller = this.getScroller();
        this.setObservers(false);
        if (scroller && scroller.tagName !== 'BODY') {
          eventOff(scroller, 'scroll', this);
        }
        eventOff(window, 'scroll', this);
        eventOff(window, 'resize', this);
        eventOff(window, 'orientationchange', this);
        TransitionEndEvents$2.forEach(function (evtName) {
          eventOff(window, evtName, _this2);
        });
      }
    }, {
      key: 'setObservers',
      value: function setObservers(on) {
        var _this3 = this;

        // We observe both the scroller for content changes, and the target links
        if (this.$obs_scroller) {
          this.$obs_scroller.disconnect();
          this.$obs_scroller = null;
        }
        if (this.$obs_targets) {
          this.$obs_targets.disconnect();
          this.$obs_targets = null;
        }
        if (on) {
          this.$obs_targets = observeDOM(this.$el, function () {
            _this3.handleEvent('mutation');
          }, {
            subtree: true,
            childList: true,
            attributes: true,
            attributeFilter: ['href']
          });
          this.$obs_scroller = observeDOM(this.getScroller(), function () {
            _this3.handleEvent('mutation');
          }, {
            subtree: true,
            childList: true,
            characterData: true,
            attributes: true,
            attributeFilter: ['id', 'style', 'class']
          });
        }
      }

      // general event handler

    }, {
      key: 'handleEvent',
      value: function handleEvent(evt) {
        var type = typeof evt === 'string' ? evt : evt.type;

        var self = this;
        function resizeThrottle() {
          if (!self.$resizeTimeout) {
            self.$resizeTimeout = setTimeout(function () {
              self.refresh();
              self.process();
              self.$resizeTimeout = null;
            }, self.$config.throttle);
          }
        }

        if (type === 'scroll') {
          if (!this.$obs_scroller) {
            // Just in case we are added to the DOM before the scroll target is
            // We re-instantiate our listeners, just in case
            this.listen();
          }
          this.process();
        } else if (/(resize|orientationchange|mutation|refresh)/.test(type)) {
          // Postpone these events by throttle time
          resizeThrottle();
        }
      }

      // Refresh the list of target links on the element we are applied to

    }, {
      key: 'refresh',
      value: function refresh() {
        var _this4 = this;

        var scroller = this.getScroller();
        if (!scroller) {
          return;
        }
        var autoMethod = scroller !== scroller.window ? OffsetMethod.POSITION : OffsetMethod.OFFSET;
        var method = this.$config.method === 'auto' ? autoMethod : this.$config.method;
        var methodFn = method === OffsetMethod.POSITION ? position : offset;
        var offsetBase = method === OffsetMethod.POSITION ? this.getScrollTop() : 0;

        this.$offsets = [];
        this.$targets = [];

        this.$scrollHeight = this.getScrollHeight();

        // Find all the unique link href's
        selectAll(this.$selector, this.$el).map(function (link) {
          return getAttr(link, 'href');
        }).filter(function (href) {
          return HREF_REGEX.test(href || '');
        }).map(function (href) {
          var el = select(href, scroller);
          if (isVisible(el)) {
            return {
              offset: parseInt(methodFn(el).top, 10) + offsetBase,
              target: href
            };
          }
          return null;
        }).filter(function (item) {
          return item;
        }).sort(function (a, b) {
          return a.offset - b.offset;
        }).reduce(function (memo, item) {
          // record only unique targets/offfsets
          if (!memo[item.target]) {
            _this4.$offsets.push(item.offset);
            _this4.$targets.push(item.target);
            memo[item.target] = true;
          }
          return memo;
        }, {});

        return this;
      }

      // Handle activating/clearing

    }, {
      key: 'process',
      value: 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;
        }

        for (var i = this.$offsets.length; i--;) {
          var isActiveTarget = this.$activeTarget !== this.$targets[i] && scrollTop >= this.$offsets[i] && (typeof this.$offsets[i + 1] === 'undefined' || scrollTop < this.$offsets[i + 1]);

          if (isActiveTarget) {
            this.activate(this.$targets[i]);
          }
        }
      }
    }, {
      key: 'getScroller',
      value: function getScroller() {
        if (this.$scroller) {
          return this.$scroller;
        }
        var scroller = this.$config.element;
        if (!scroller) {
          return null;
        } else if (isElement(scroller.$el)) {
          scroller = scroller.$el;
        } else if (typeof scroller === 'string') {
          scroller = select(scroller);
        }
        if (!scroller) {
          return null;
        }
        this.$scroller = scroller.tagName === 'BODY' ? window : scroller;
        return this.$scroller;
      }
    }, {
      key: 'getScrollTop',
      value: function getScrollTop() {
        var scroller = this.getScroller();
        return scroller === window ? scroller.pageYOffset : scroller.scrollTop;
      }
    }, {
      key: 'getScrollHeight',
      value: function getScrollHeight() {
        return this.getScroller().scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
      }
    }, {
      key: 'getOffsetHeight',
      value: function getOffsetHeight() {
        var scroller = this.getScroller();
        return scroller === window ? window.innerHeight : getBCR(scroller).height;
      }
    }, {
      key: 'activate',
      value: function activate(target) {
        var _this5 = this;

        this.$activeTarget = target;
        this.clear();

        // Grab the list of target links (<a href="{$target}">)
        var links = selectAll(this.$selector.split(',').map(function (selector) {
          return selector + '[href="' + target + '"]';
        }).join(','), this.$el);

        links.forEach(function (link) {
          if (hasClass(link, ClassName$2.DROPDOWN_ITEM)) {
            // This is a dropdown item, so find the .dropdown-toggle and set it's state
            var dropdown = closest(Selector$3.DROPDOWN, link);
            if (dropdown) {
              _this5.setActiveState(select(Selector$3.DROPDOWN_TOGGLE, dropdown), true);
            }
            // Also set this link's state
            _this5.setActiveState(link, true);
          } else {
            // Set triggered link as active
            _this5.setActiveState(link, true);
            if (matches(link.parentElement, Selector$3.NAV_ITEMS)) {
              // Handle nav-link inside nav-item, and set nav-item active
              _this5.setActiveState(link.parentElement, true);
            }
            // Set triggered links parents as active
            // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
            var el = link;
            while (el) {
              el = closest(Selector$3.NAV_LIST_GROUP, el);
              var sibling = el ? el.previousElementSibling : null;
              if (matches(sibling, Selector$3.NAV_LINKS + ', ' + Selector$3.LIST_ITEMS)) {
                _this5.setActiveState(sibling, true);
              }
              // Handle special case where nav-link is inside a nav-item
              if (matches(sibling, Selector$3.NAV_ITEMS)) {
                _this5.setActiveState(select(Selector$3.NAV_LINKS, sibling), true);
                // Add active state to nav-item as well
                _this5.setActiveState(sibling, true);
              }
            }
          }
        });

        // Signal event to via $root, passing ID of activaed target and reference to array of links
        if (links && links.length > 0 && this.$root) {
          this.$root.$emit(ACTIVATE_EVENT, target, links);
        }
      }
    }, {
      key: 'clear',
      value: function clear() {
        var _this6 = this;

        selectAll(this.$selector + ', ' + Selector$3.NAV_ITEMS, this.$el).filter(function (el) {
          return hasClass(el, ClassName$2.ACTIVE);
        }).forEach(function (el) {
          return _this6.setActiveState(el, false);
        });
      }
    }, {
      key: 'setActiveState',
      value: function setActiveState(el, active) {
        if (!el) {
          return;
        }
        if (active) {
          addClass(el, ClassName$2.ACTIVE);
        } else {
          removeClass(el, ClassName$2.ACTIVE);
        }
      }
    }], [{
      key: 'Name',
      get: function get$$1() {
        return NAME$2;
      }
    }, {
      key: 'Default',
      get: function get$$1() {
        return Default;
      }
    }, {
      key: 'DefaultType',
      get: function get$$1() {
        return DefaultType;
      }
    }]);
    return ScrollSpy;
  }();

  /*
   * ScrollSpy directive v-b-scrollspy
   */

  var inBrowser$1 = typeof window !== 'undefined';
  var isServer = !inBrowser$1;

  // Key we use to store our Instance
  var BVSS = '__BV_ScrollSpy__';

  // Generate config from bindings
  /* istanbul ignore next: not easy to test */
  function makeConfig(binding) {
    var config = {};

    // If Argument, assume element ID
    if (binding.arg) {
      // Element ID specified as arg. We must pre-pend #
      config.element = '#' + binding.arg;
    }

    // Process modifiers
    keys(binding.modifiers).forEach(function (mod) {
      if (/^\d+$/.test(mod)) {
        // Offest value
        config.offset = parseInt(mod, 10);
      } else if (/^(auto|position|offset)$/.test(mod)) {
        // Offset method
        config.method = mod;
      }
    });

    // Process value
    if (typeof binding.value === 'string') {
      // Value is a CSS ID or selector
      config.element = binding.value;
    } else if (typeof binding.value === 'number') {
      // Value is offset
      config.offset = Math.round(binding.value);
    } else if (_typeof(binding.value) === 'object') {
      // Value is config object
      // Filter the object based on our supported config options
      keys(binding.value).filter(function (k) {
        return Boolean(ScrollSpy.DefaultType[k]);
      }).forEach(function (k) {
        config[k] = binding.value[k];
      });
    }

    return config;
  }

  /* istanbul ignore next: not easy to test */
  function addBVSS(el, binding, vnode) {
    if (isServer) {
      return;
    }
    var cfg = makeConfig(binding);
    if (!el[BVSS]) {
      el[BVSS] = new ScrollSpy(el, cfg, vnode.context.$root);
    } else {
      el[BVSS].updateConfig(cfg, vnode.context.$root);
    }
    return el[BVSS];
  }

  /* istanbul ignore next: not easy to test */
  function removeBVSS(el) {
    if (el[BVSS]) {
      el[BVSS].dispose();
      el[BVSS] = null;
    }
  }

  /*
   * Export our directive
   */

  /* istanbul ignore next: not easy to test */
  var bScrollspy = {
    bind: function bind(el, binding, vnode) {
      addBVSS(el, binding, vnode);
    },
    inserted: function inserted(el, binding, vnode) {
      addBVSS(el, binding, vnode);
    },
    update: function update(el, binding, vnode) {
      addBVSS(el, binding, vnode);
    },
    componentUpdated: function componentUpdated(el, binding, vnode) {
      addBVSS(el, binding, vnode);
    },
    unbind: function unbind(el) {
      if (isServer) {
        return;
      }
      // Remove scroll event listener on scrollElId
      removeBVSS(el);
    }
  };

  var directives$2 = {
    bScrollspy: bScrollspy
  };

  var VuePlugin$C = {
    install: function install(Vue) {
      registerDirectives(Vue, directives$2);
    }
  };

  vueUse(VuePlugin$C);

  var inBrowser$2 = typeof window !== 'undefined' && typeof document !== 'undefined';

  // Key which we use to store tooltip object on element
  var BVTT = '__BV_ToolTip__';

  // Valid event triggers
  var validTriggers = {
    'focus': true,
    'hover': true,
    'click': true,
    'blur': true

    // Build a ToolTip config based on bindings (if any)
    // Arguments and modifiers take precedence over passed value config object
    /* istanbul ignore next: not easy to test */
  };function parseBindings(bindings) {
    // We start out with a blank config
    var config = {};

    // Process bindings.value
    if (typeof bindings.value === 'string') {
      // Value is tooltip content (html optionally supported)
      config.title = bindings.value;
    } else if (typeof bindings.value === 'function') {
      // Title generator function
      config.title = bindings.value;
    } else if (_typeof(bindings.value) === 'object') {
      // Value is config object, so merge
      config = assign(bindings.value);
    }

    // If Argument, assume element ID of container element
    if (bindings.arg) {
      // Element ID specified as arg. We must prepend '#' to become a CSS selector
      config.container = '#' + bindings.arg;
    }

    // Process modifiers
    keys(bindings.modifiers).forEach(function (mod) {
      if (/^html$/.test(mod)) {
        // Title allows HTML
        config.html = true;
      } else if (/^nofade$/.test(mod)) {
        // no animation
        config.animation = false;
      } else if (/^(auto|top(left|right)?|bottom(left|right)?|left(top|bottom)?|right(top|bottom)?)$/.test(mod)) {
        // placement of tooltip
        config.placement = mod;
      } else if (/^(window|viewport)$/.test(mod)) {
        // bounday of tooltip
        config.boundary = mod;
      } else if (/^d\d+$/.test(mod)) {
        // delay value
        var delay = parseInt(mod.slice(1), 10) || 0;
        if (delay) {
          config.delay = delay;
        }
      } else if (/^o-?\d+$/.test(mod)) {
        // offset value. Negative allowed
        var offset = parseInt(mod.slice(1), 10) || 0;
        if (offset) {
          config.offset = offset;
        }
      }
    });

    // Special handling of event trigger modifiers Trigger is a space separated list
    var selectedTriggers = {};

    // parse current config object trigger
    var triggers = typeof config.trigger === 'string' ? config.trigger.trim().split(/\s+/) : [];
    triggers.forEach(function (trigger) {
      if (validTriggers[trigger]) {
        selectedTriggers[trigger] = true;
      }
    });

    // Parse Modifiers for triggers
    keys(validTriggers).forEach(function (trigger) {
      if (bindings.modifiers[trigger]) {
        selectedTriggers[trigger] = true;
      }
    });

    // Sanitize triggers
    config.trigger = keys(selectedTriggers).join(' ');
    if (config.trigger === 'blur') {
      // Blur by itself is useless, so convert it to 'focus'
      config.trigger = 'focus';
    }
    if (!config.trigger) {
      // remove trigger config
      delete config.trigger;
    }

    return config;
  }

  //
  // Add or Update tooltip on our element
  //
  /* istanbul ignore next: not easy to test */
  function applyBVTT(el, bindings, vnode) {
    if (!inBrowser$2) {
      return;
    }
    if (!Popper) {
      // Popper is required for tooltips to work
      warn('v-b-tooltip: Popper.js is required for tooltips to work');
      return;
    }
    if (el[BVTT]) {
      el[BVTT].updateConfig(parseBindings(bindings));
    } else {
      el[BVTT] = new ToolTip(el, parseBindings(bindings), vnode.context.$root);
    }
  }

  //
  // Remove tooltip on our element
  //
  /* istanbul ignore next: not easy to test */
  function removeBVTT(el) {
    if (!inBrowser$2) {
      return;
    }
    if (el[BVTT]) {
      el[BVTT].destroy();
      el[BVTT] = null;
      delete el[BVTT];
    }
  }

  /*
   * Export our directive
   */
  /* istanbul ignore next: not easy to test */
  var bTooltip$1 = {
    bind: function bind(el, bindings, vnode) {
      applyBVTT(el, bindings, vnode);
    },
    inserted: function inserted(el, bindings, vnode) {
      applyBVTT(el, bindings, vnode);
    },
    update: function update(el, bindings, vnode) {
      if (bindings.value !== bindings.oldValue) {
        applyBVTT(el, bindings, vnode);
      }
    },
    componentUpdated: function componentUpdated(el, bindings, vnode) {
      if (bindings.value !== bindings.oldValue) {
        applyBVTT(el, bindings, vnode);
      }
    },
    unbind: function unbind(el) {
      removeBVTT(el);
    }
  };

  var directives$3 = {
    bTooltip: bTooltip$1
  };

  var VuePlugin$D = {
    install: function install(Vue) {
      registerDirectives(Vue, directives$3);
    }
  };

  vueUse(VuePlugin$D);

  var inBrowser$3 = typeof window !== 'undefined' && typeof document !== 'undefined';

  // Key which we use to store tooltip object on element
  var BVPO = '__BV_PopOver__';

  // Valid event triggers
  var validTriggers$1 = {
    'focus': true,
    'hover': true,
    'click': true,
    'blur': true

    // Build a PopOver config based on bindings (if any)
    // Arguments and modifiers take precedence over pased value config object
    /* istanbul ignore next: not easy to test */
  };function parseBindings$1(bindings) {
    // We start out with a blank config
    var config = {};

    // Process bindings.value
    if (typeof bindings.value === 'string') {
      // Value is popover content (html optionally supported)
      config.content = bindings.value;
    } else if (typeof bindings.value === 'function') {
      // Content generator function
      config.content = bindings.value;
    } else if (_typeof(bindings.value) === 'object') {
      // Value is config object, so merge
      config = assign(bindings.value);
    }

    // If Argument, assume element ID of container element
    if (bindings.arg) {
      // Element ID specified as arg. We must prepend '#' to become a CSS selector
      config.container = '#' + bindings.arg;
    }

    // Process modifiers
    keys(bindings.modifiers).forEach(function (mod) {
      if (/^html$/.test(mod)) {
        // Title allows HTML
        config.html = true;
      } else if (/^nofade$/.test(mod)) {
        // no animation
        config.animation = false;
      } else if (/^(auto|top(left|right)?|bottom(left|right)?|left(top|bottom)?|right(top|bottom)?)$/.test(mod)) {
        // placement of popover
        config.placement = mod;
      } else if (/^(window|viewport)$/.test(mod)) {
        // bounday of popover
        config.boundary = mod;
      } else if (/^d\d+$/.test(mod)) {
        // delay value
        var delay = parseInt(mod.slice(1), 10) || 0;
        if (delay) {
          config.delay = delay;
        }
      } else if (/^o-?\d+$/.test(mod)) {
        // offset value (negative allowed)
        var offset = parseInt(mod.slice(1), 10) || 0;
        if (offset) {
          config.offset = offset;
        }
      }
    });

    // Special handling of event trigger modifiers Trigger is a space separated list
    var selectedTriggers = {};

    // parse current config object trigger
    var triggers = typeof config.trigger === 'string' ? config.trigger.trim().split(/\s+/) : [];
    triggers.forEach(function (trigger) {
      if (validTriggers$1[trigger]) {
        selectedTriggers[trigger] = true;
      }
    });

    // Parse Modifiers for triggers
    keys(validTriggers$1).forEach(function (trigger) {
      if (bindings.modifiers[trigger]) {
        selectedTriggers[trigger] = true;
      }
    });

    // Sanitize triggers
    config.trigger = keys(selectedTriggers).join(' ');
    if (config.trigger === 'blur') {
      // Blur by itself is useless, so convert it to focus
      config.trigger = 'focus';
    }
    if (!config.trigger) {
      // remove trigger config
      delete config.trigger;
    }

    return config;
  }

  //
  // Add or Update popover on our element
  //
  /* istanbul ignore next: not easy to test */
  function applyBVPO(el, bindings, vnode) {
    if (!inBrowser$3) {
      return;
    }
    if (!Popper) {
      // Popper is required for tooltips to work
      warn('v-b-popover: Popper.js is required for popovers to work');
      return;
    }
    if (el[BVPO]) {
      el[BVPO].updateConfig(parseBindings$1(bindings));
    } else {
      el[BVPO] = new PopOver(el, parseBindings$1(bindings), vnode.context.$root);
    }
  }
  //
  // Remove popover on our element
  //
  /* istanbul ignore next */
  function removeBVPO(el) {
    if (!inBrowser$3) {
      return;
    }
    if (el[BVPO]) {
      el[BVPO].destroy();
      el[BVPO] = null;
      delete el[BVPO];
    }
  }

  /*
   * Export our directive
   */
  /* istanbul ignore next: not easy to test */
  var bPopover$1 = {
    bind: function bind(el, bindings, vnode) {
      applyBVPO(el, bindings, vnode);
    },
    inserted: function inserted(el, bindings, vnode) {
      applyBVPO(el, bindings, vnode);
    },
    update: function update(el, bindings, vnode) {
      if (bindings.value !== bindings.oldValue) {
        applyBVPO(el, bindings, vnode);
      }
    },
    componentUpdated: function componentUpdated(el, bindings, vnode) {
      if (bindings.value !== bindings.oldValue) {
        applyBVPO(el, bindings, vnode);
      }
    },
    unbind: function unbind(el) {
      removeBVPO(el);
    }
  };

  var directives$4 = {
    bPopover: bPopover$1
  };

  var VuePlugin$E = {
    install: function install(Vue) {
      registerDirectives(Vue, directives$4);
    }
  };

  vueUse(VuePlugin$E);



  var directives$5 = /*#__PURE__*/Object.freeze({
    Toggle: VuePlugin$a,
    Modal: VuePlugin$r,
    Scrollspy: VuePlugin$C,
    Tooltip: VuePlugin$D,
    Popover: VuePlugin$E
  });

  var VuePlugin$F = {
    install: function install(Vue) {
      if (Vue._bootstrap_vue_installed) {
        return;
      }

      Vue._bootstrap_vue_installed = true;

      // Register component plugins
      for (var plugin in components$A) {
        Vue.use(components$A[plugin]);
      }

      // Register directive plugins
      for (var _plugin in directives$5) {
        Vue.use(directives$5[_plugin]);
      }
    }
  };

  vueUse(VuePlugin$F);

  return VuePlugin$F;

})));
//# sourceMappingURL=bootstrap-vue.js.map