bk-magic-vue/lib/input.js

基于蓝鲸 Magicbox 和 Vue 的前端组件库

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('vue'), require('bk-magic-vue/lib/locale')) :
	typeof define === 'function' && define.amd ? define(['exports', 'vue', 'bk-magic-vue/lib/locale'], factory) :
	(global = global || self, factory(global.library = {}, global.Vue, global.locale));
}(this, function (exports, Vue, locale) { 'use strict';

	Vue = Vue && Vue.hasOwnProperty('default') ? Vue['default'] : Vue;
	locale = locale && locale.hasOwnProperty('default') ? locale['default'] : locale;

	function createCommonjsModule(fn, module) {
		return module = { exports: {} }, fn(module, module.exports), module.exports;
	}

	var _global = createCommonjsModule(function (module) {
	var global = module.exports = typeof window != 'undefined' && window.Math == Math
	  ? window : typeof self != 'undefined' && self.Math == Math ? self
	  : Function('return this')();
	if (typeof __g == 'number') __g = global;
	});

	var _core = createCommonjsModule(function (module) {
	var core = module.exports = { version: '2.6.12' };
	if (typeof __e == 'number') __e = core;
	});
	var _core_1 = _core.version;

	var _aFunction = function (it) {
	  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
	  return it;
	};

	var _ctx = function (fn, that, length) {
	  _aFunction(fn);
	  if (that === undefined) return fn;
	  switch (length) {
	    case 1: return function (a) {
	      return fn.call(that, a);
	    };
	    case 2: return function (a, b) {
	      return fn.call(that, a, b);
	    };
	    case 3: return function (a, b, c) {
	      return fn.call(that, a, b, c);
	    };
	  }
	  return function () {
	    return fn.apply(that, arguments);
	  };
	};

	var _isObject = function (it) {
	  return typeof it === 'object' ? it !== null : typeof it === 'function';
	};

	var _anObject = function (it) {
	  if (!_isObject(it)) throw TypeError(it + ' is not an object!');
	  return it;
	};

	var _fails = function (exec) {
	  try {
	    return !!exec();
	  } catch (e) {
	    return true;
	  }
	};

	var _descriptors = !_fails(function () {
	  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
	});

	var document$1 = _global.document;
	var is = _isObject(document$1) && _isObject(document$1.createElement);
	var _domCreate = function (it) {
	  return is ? document$1.createElement(it) : {};
	};

	var _ie8DomDefine = !_descriptors && !_fails(function () {
	  return Object.defineProperty(_domCreate('div'), 'a', { get: function () { return 7; } }).a != 7;
	});

	var _toPrimitive = function (it, S) {
	  if (!_isObject(it)) return it;
	  var fn, val;
	  if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
	  if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) return val;
	  if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
	  throw TypeError("Can't convert object to primitive value");
	};

	var dP = Object.defineProperty;
	var f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
	  _anObject(O);
	  P = _toPrimitive(P, true);
	  _anObject(Attributes);
	  if (_ie8DomDefine) try {
	    return dP(O, P, Attributes);
	  } catch (e) {  }
	  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
	  if ('value' in Attributes) O[P] = Attributes.value;
	  return O;
	};
	var _objectDp = {
		f: f
	};

	var _propertyDesc = function (bitmap, value) {
	  return {
	    enumerable: !(bitmap & 1),
	    configurable: !(bitmap & 2),
	    writable: !(bitmap & 4),
	    value: value
	  };
	};

	var _hide = _descriptors ? function (object, key, value) {
	  return _objectDp.f(object, key, _propertyDesc(1, value));
	} : function (object, key, value) {
	  object[key] = value;
	  return object;
	};

	var hasOwnProperty = {}.hasOwnProperty;
	var _has = function (it, key) {
	  return hasOwnProperty.call(it, key);
	};

	var PROTOTYPE = 'prototype';
	var $export = function (type, name, source) {
	  var IS_FORCED = type & $export.F;
	  var IS_GLOBAL = type & $export.G;
	  var IS_STATIC = type & $export.S;
	  var IS_PROTO = type & $export.P;
	  var IS_BIND = type & $export.B;
	  var IS_WRAP = type & $export.W;
	  var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
	  var expProto = exports[PROTOTYPE];
	  var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] : (_global[name] || {})[PROTOTYPE];
	  var key, own, out;
	  if (IS_GLOBAL) source = name;
	  for (key in source) {
	    own = !IS_FORCED && target && target[key] !== undefined;
	    if (own && _has(exports, key)) continue;
	    out = own ? target[key] : source[key];
	    exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
	    : IS_BIND && own ? _ctx(out, _global)
	    : IS_WRAP && target[key] == out ? (function (C) {
	      var F = function (a, b, c) {
	        if (this instanceof C) {
	          switch (arguments.length) {
	            case 0: return new C();
	            case 1: return new C(a);
	            case 2: return new C(a, b);
	          } return new C(a, b, c);
	        } return C.apply(this, arguments);
	      };
	      F[PROTOTYPE] = C[PROTOTYPE];
	      return F;
	    })(out) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
	    if (IS_PROTO) {
	      (exports.virtual || (exports.virtual = {}))[key] = out;
	      if (type & $export.R && expProto && !expProto[key]) _hide(expProto, key, out);
	    }
	  }
	};
	$export.F = 1;
	$export.G = 2;
	$export.S = 4;
	$export.P = 8;
	$export.B = 16;
	$export.W = 32;
	$export.U = 64;
	$export.R = 128;
	var _export = $export;

	var _defined = function (it) {
	  if (it == undefined) throw TypeError("Can't call method on  " + it);
	  return it;
	};

	var _stringWs = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
	  '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';

	var space = '[' + _stringWs + ']';
	var non = '\u200b\u0085';
	var ltrim = RegExp('^' + space + space + '*');
	var rtrim = RegExp(space + space + '*$');
	var exporter = function (KEY, exec, ALIAS) {
	  var exp = {};
	  var FORCE = _fails(function () {
	    return !!_stringWs[KEY]() || non[KEY]() != non;
	  });
	  var fn = exp[KEY] = FORCE ? exec(trim) : _stringWs[KEY];
	  if (ALIAS) exp[ALIAS] = fn;
	  _export(_export.P + _export.F * FORCE, 'String', exp);
	};
	var trim = exporter.trim = function (string, TYPE) {
	  string = String(_defined(string));
	  if (TYPE & 1) string = string.replace(ltrim, '');
	  if (TYPE & 2) string = string.replace(rtrim, '');
	  return string;
	};
	var _stringTrim = exporter;

	var $parseInt = _global.parseInt;
	var $trim = _stringTrim.trim;
	var hex = /^[-+]?0[xX]/;
	var _parseInt = $parseInt(_stringWs + '08') !== 8 || $parseInt(_stringWs + '0x16') !== 22 ? function parseInt(str, radix) {
	  var string = $trim(String(str), 3);
	  return $parseInt(string, (radix >>> 0) || (hex.test(string) ? 16 : 10));
	} : $parseInt;

	_export(_export.G + _export.F * (parseInt != _parseInt), { parseInt: _parseInt });

	var _parseInt$1 = _core.parseInt;

	var _parseInt$2 = _parseInt$1;

	function _typeof(obj) {
	  "@babel/helpers - typeof";

	  return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
	    return typeof obj;
	  } : function (obj) {
	    return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
	  }, _typeof(obj);
	}
	function _classCallCheck(instance, Constructor) {
	  if (!(instance instanceof Constructor)) {
	    throw new TypeError("Cannot call a class as a 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, _toPropertyKey(descriptor.key), descriptor);
	  }
	}
	function _createClass(Constructor, protoProps, staticProps) {
	  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
	  if (staticProps) _defineProperties(Constructor, staticProps);
	  Object.defineProperty(Constructor, "prototype", {
	    writable: false
	  });
	  return Constructor;
	}
	function _defineProperty(obj, key, value) {
	  key = _toPropertyKey(key);
	  if (key in obj) {
	    Object.defineProperty(obj, key, {
	      value: value,
	      enumerable: true,
	      configurable: true,
	      writable: true
	    });
	  } else {
	    obj[key] = value;
	  }
	  return obj;
	}
	function _extends() {
	  _extends = Object.assign ? Object.assign.bind() : function (target) {
	    for (var i = 1; i < arguments.length; i++) {
	      var source = arguments[i];
	      for (var key in source) {
	        if (Object.prototype.hasOwnProperty.call(source, key)) {
	          target[key] = source[key];
	        }
	      }
	    }
	    return target;
	  };
	  return _extends.apply(this, arguments);
	}
	function _objectSpread(target) {
	  for (var i = 1; i < arguments.length; i++) {
	    var source = arguments[i] != null ? Object(arguments[i]) : {};
	    var ownKeys = Object.keys(source);
	    if (typeof Object.getOwnPropertySymbols === 'function') {
	      ownKeys.push.apply(ownKeys, Object.getOwnPropertySymbols(source).filter(function (sym) {
	        return Object.getOwnPropertyDescriptor(source, sym).enumerable;
	      }));
	    }
	    ownKeys.forEach(function (key) {
	      _defineProperty(target, key, source[key]);
	    });
	  }
	  return target;
	}
	function _unsupportedIterableToArray(o, minLen) {
	  if (!o) return;
	  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
	  var n = Object.prototype.toString.call(o).slice(8, -1);
	  if (n === "Object" && o.constructor) n = o.constructor.name;
	  if (n === "Map" || n === "Set") return Array.from(o);
	  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
	}
	function _arrayLikeToArray(arr, len) {
	  if (len == null || len > arr.length) len = arr.length;
	  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
	  return arr2;
	}
	function _createForOfIteratorHelper(o, allowArrayLike) {
	  var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
	  if (!it) {
	    if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
	      if (it) o = it;
	      var i = 0;
	      var F = function () {};
	      return {
	        s: F,
	        n: function () {
	          if (i >= o.length) return {
	            done: true
	          };
	          return {
	            done: false,
	            value: o[i++]
	          };
	        },
	        e: function (e) {
	          throw e;
	        },
	        f: F
	      };
	    }
	    throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
	  }
	  var normalCompletion = true,
	    didErr = false,
	    err;
	  return {
	    s: function () {
	      it = it.call(o);
	    },
	    n: function () {
	      var step = it.next();
	      normalCompletion = step.done;
	      return step;
	    },
	    e: function (e) {
	      didErr = true;
	      err = e;
	    },
	    f: function () {
	      try {
	        if (!normalCompletion && it.return != null) it.return();
	      } finally {
	        if (didErr) throw err;
	      }
	    }
	  };
	}
	function _toPrimitive$1(input, hint) {
	  if (typeof input !== "object" || input === null) return input;
	  var prim = input[Symbol.toPrimitive];
	  if (prim !== undefined) {
	    var res = prim.call(input, hint || "default");
	    if (typeof res !== "object") return res;
	    throw new TypeError("@@toPrimitive must return a primitive value.");
	  }
	  return (hint === "string" ? String : Number)(input);
	}
	function _toPropertyKey(arg) {
	  var key = _toPrimitive$1(arg, "string");
	  return typeof key === "symbol" ? key : String(key);
	}

	var $parseFloat = _global.parseFloat;
	var $trim$1 = _stringTrim.trim;
	var _parseFloat = 1 / $parseFloat(_stringWs + '-0') !== -Infinity ? function parseFloat(str) {
	  var string = $trim$1(String(str), 3);
	  var result = $parseFloat(string);
	  return result === 0 && string.charAt(0) == '-' ? -0 : result;
	} : $parseFloat;

	_export(_export.G + _export.F * (parseFloat != _parseFloat), { parseFloat: _parseFloat });

	var _parseFloat$1 = _core.parseFloat;

	var _parseFloat$2 = _parseFloat$1;

	_export(_export.S, 'Number', { MAX_SAFE_INTEGER: 0x1fffffffffffff });

	var maxSafeInteger = 0x1fffffffffffff;

	var maxSafeInteger$1 = maxSafeInteger;

	_export(_export.S, 'Number', { MIN_SAFE_INTEGER: -0x1fffffffffffff });

	var minSafeInteger = -0x1fffffffffffff;

	var minSafeInteger$1 = minSafeInteger;

	var emitter = {
	  methods: {
	    dispatch: function dispatch(componentName, eventName, params) {
	      var parent = this.$parent || this.$root;
	      var name = parent.$options.name;
	      while (parent && (!name || name !== componentName)) {
	        parent = parent.$parent;
	        if (parent) {
	          name = parent.$options.name;
	        }
	      }
	      if (parent) {
	        parent.$emit.apply(parent, [eventName].concat(params));
	      }
	    }
	  }
	};

	var requestAnimationFrame$1 = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) {
	  window.setTimeout(callback, 1000 / 60);
	};
	var cancelAnimationFrame$1 = window.cancelAnimationFrame || window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || window.oCancelAnimationFrame || window.msCancelAnimationFrame || function (id) {
	  window.clearTimeout(id);
	};
	var SPECIAL_CHARS_REGEXP = /([\:\-\_]+(.))/g;
	var MOZ_HACK_REGEXP = /^moz([A-Z])/;
	var camelCase = function camelCase(name) {
	  return name.replace(SPECIAL_CHARS_REGEXP, function (_, separator, letter, offset) {
	    return offset ? letter.toUpperCase() : letter;
	  }).replace(MOZ_HACK_REGEXP, 'Moz$1');
	};
	var getStyle = Number(document.documentMode) < 9 ? function (element, styleName) {
	  if (!element || !styleName) return null;
	  styleName = camelCase(styleName);
	  if (styleName === 'float') {
	    styleName = 'styleFloat';
	  }
	  try {
	    switch (styleName) {
	      case 'opacity':
	        try {
	          return element.filters.item('alpha').opacity / 100;
	        } catch (e) {
	          return 1.0;
	        }
	      default:
	        return element.style[styleName] || element.currentStyle ? element.currentStyle[styleName] : null;
	    }
	  } catch (e) {
	    return element.style[styleName];
	  }
	} : function (element, styleName) {
	  if (!element || !styleName) return null;
	  styleName = camelCase(styleName);
	  if (styleName === 'float') {
	    styleName = 'cssFloat';
	  }
	  try {
	    var computed = document.defaultView.getComputedStyle(element, '');
	    return element.style[styleName] || computed ? computed[styleName] : null;
	  } catch (e) {
	    return element.style[styleName];
	  }
	};

	var toString = {}.toString;
	var _cof = function (it) {
	  return toString.call(it).slice(8, -1);
	};

	var _isArray = Array.isArray || function isArray(arg) {
	  return _cof(arg) == 'Array';
	};

	_export(_export.S, 'Array', { isArray: _isArray });

	var isArray = _core.Array.isArray;

	var isArray$1 = isArray;

	var _toObject = function (it) {
	  return Object(_defined(it));
	};

	var _iobject = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
	  return _cof(it) == 'String' ? it.split('') : Object(it);
	};

	var _toIobject = function (it) {
	  return _iobject(_defined(it));
	};

	var ceil = Math.ceil;
	var floor = Math.floor;
	var _toInteger = function (it) {
	  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
	};

	var min = Math.min;
	var _toLength = function (it) {
	  return it > 0 ? min(_toInteger(it), 0x1fffffffffffff) : 0;
	};

	var max = Math.max;
	var min$1 = Math.min;
	var _toAbsoluteIndex = function (index, length) {
	  index = _toInteger(index);
	  return index < 0 ? max(index + length, 0) : min$1(index, length);
	};

	var _arrayIncludes = function (IS_INCLUDES) {
	  return function ($this, el, fromIndex) {
	    var O = _toIobject($this);
	    var length = _toLength(O.length);
	    var index = _toAbsoluteIndex(fromIndex, length);
	    var value;
	    if (IS_INCLUDES && el != el) while (length > index) {
	      value = O[index++];
	      if (value != value) return true;
	    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
	      if (O[index] === el) return IS_INCLUDES || index || 0;
	    } return !IS_INCLUDES && -1;
	  };
	};

	var _shared = createCommonjsModule(function (module) {
	var SHARED = '__core-js_shared__';
	var store = _global[SHARED] || (_global[SHARED] = {});
	(module.exports = function (key, value) {
	  return store[key] || (store[key] = value !== undefined ? value : {});
	})('versions', []).push({
	  version: _core.version,
	  mode:  'pure' ,
	  copyright: '© 2020 Denis Pushkarev (zloirock.ru)'
	});
	});

	var id = 0;
	var px = Math.random();
	var _uid = function (key) {
	  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
	};

	var shared = _shared('keys');
	var _sharedKey = function (key) {
	  return shared[key] || (shared[key] = _uid(key));
	};

	var arrayIndexOf = _arrayIncludes(false);
	var IE_PROTO = _sharedKey('IE_PROTO');
	var _objectKeysInternal = function (object, names) {
	  var O = _toIobject(object);
	  var i = 0;
	  var result = [];
	  var key;
	  for (key in O) if (key != IE_PROTO) _has(O, key) && result.push(key);
	  while (names.length > i) if (_has(O, key = names[i++])) {
	    ~arrayIndexOf(result, key) || result.push(key);
	  }
	  return result;
	};

	var _enumBugKeys = (
	  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
	).split(',');

	var _objectKeys = Object.keys || function keys(O) {
	  return _objectKeysInternal(O, _enumBugKeys);
	};

	var _objectSap = function (KEY, exec) {
	  var fn = (_core.Object || {})[KEY] || Object[KEY];
	  var exp = {};
	  exp[KEY] = exec(fn);
	  _export(_export.S + _export.F * _fails(function () { fn(1); }), 'Object', exp);
	};

	_objectSap('keys', function () {
	  return function keys(it) {
	    return _objectKeys(_toObject(it));
	  };
	});

	var keys = _core.Object.keys;

	var keys$1 = keys;

	var f$1 = Object.getOwnPropertySymbols;
	var _objectGops = {
		f: f$1
	};

	var f$2 = {}.propertyIsEnumerable;
	var _objectPie = {
		f: f$2
	};

	var $assign = Object.assign;
	var _objectAssign = !$assign || _fails(function () {
	  var A = {};
	  var B = {};
	  var S = Symbol();
	  var K = 'abcdefghijklmnopqrst';
	  A[S] = 7;
	  K.split('').forEach(function (k) { B[k] = k; });
	  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
	}) ? function assign(target, source) {
	  var T = _toObject(target);
	  var aLen = arguments.length;
	  var index = 1;
	  var getSymbols = _objectGops.f;
	  var isEnum = _objectPie.f;
	  while (aLen > index) {
	    var S = _iobject(arguments[index++]);
	    var keys = getSymbols ? _objectKeys(S).concat(getSymbols(S)) : _objectKeys(S);
	    var length = keys.length;
	    var j = 0;
	    var key;
	    while (length > j) {
	      key = keys[j++];
	      if (!_descriptors || isEnum.call(S, key)) T[key] = S[key];
	    }
	  } return T;
	} : $assign;

	_export(_export.S + _export.F, 'Object', { assign: _objectAssign });

	var assign = _core.Object.assign;

	var assign$1 = assign;

	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;
	var debounce = supportsMicroTasks ? microtaskDebounce : taskDebounce;
	function isFunction(functionToCheck) {
	  var getType = {};
	  return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
	}
	function getStyleComputedProperty(element, property) {
	  if (element.nodeType !== 1) {
	    return [];
	  }
	  var window = element.ownerDocument.defaultView;
	  var css = window.getComputedStyle(element, null);
	  return property ? css[property] : css;
	}
	function getParentNode(element) {
	  if (element.nodeName === 'HTML') {
	    return element;
	  }
	  return element.parentNode || element.host;
	}
	function getScrollParent(element) {
	  if (!element) {
	    return document.body;
	  }
	  switch (element.nodeName) {
	    case 'HTML':
	    case 'BODY':
	      return element.ownerDocument.body;
	    case '#document':
	      return element.body;
	  }
	  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);
	function isIE(version) {
	  if (version === 11) {
	    return isIE11;
	  }
	  if (version === 10) {
	    return isIE10;
	  }
	  return isIE11 || isIE10;
	}
	function getOffsetParent(element) {
	  if (!element) {
	    return document.documentElement;
	  }
	  var noOffsetParent = isIE(10) ? document.body : null;
	  var offsetParent = element.offsetParent || null;
	  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;
	  }
	  if (['TH', '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;
	}
	function getRoot(node) {
	  if (node.parentNode !== null) {
	    return getRoot(node.parentNode);
	  }
	  return node;
	}
	function findCommonOffsetParent(element1, element2) {
	  if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
	    return document.documentElement;
	  }
	  var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
	  var start = order ? element1 : element2;
	  var end = order ? element2 : element1;
	  var range = document.createRange();
	  range.setStart(start, 0);
	  range.setEnd(end, 0);
	  var commonAncestorContainer = range.commonAncestorContainer;
	  if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
	    if (isOffsetContainer(commonAncestorContainer)) {
	      return commonAncestorContainer;
	    }
	    return getOffsetParent(commonAncestorContainer);
	  }
	  var element1root = getRoot(element1);
	  if (element1root.host) {
	    return findCommonOffsetParent(element1root.host, element2);
	  } else {
	    return findCommonOffsetParent(element1, getRoot(element2).host);
	  }
	}
	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];
	}
	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;
	}
	function getBordersSize(styles, axis) {
	  var sideA = axis === 'x' ? 'Left' : 'Top';
	  var sideB = sideA === 'Left' ? 'Right' : 'Bottom';
	  return _parseFloat$2(styles["border".concat(sideA, "Width")], 10) + _parseFloat$2(styles["border".concat(sideB, "Width")], 10);
	}
	function getSize(axis, body, html, computedStyle) {
	  return Math.max(body["offset".concat(axis)], body["scroll".concat(axis)], html["client".concat(axis)], html["offset".concat(axis)], html["scroll".concat(axis)], isIE(10) ? _parseInt$2(html["offset".concat(axis)]) + _parseInt$2(computedStyle["margin".concat(axis === 'Height' ? 'Top' : 'Left')]) + _parseInt$2(computedStyle["margin".concat(axis === 'Height' ? 'Bottom' : 'Right')]) : 0);
	}
	function getWindowSizes(document) {
	  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 _extends$1 = assign$1 || 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;
	};
	function getClientRect(offsets) {
	  return _extends$1({}, offsets, {
	    right: offsets.left + offsets.width,
	    bottom: offsets.top + offsets.height
	  });
	}
	function getBoundingClientRect(element) {
	  var rect = {};
	  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
	  };
	  var sizes = element.nodeName === 'HTML' ? getWindowSizes(element.ownerDocument) : {};
	  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 (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$2(styles.borderTopWidth, 10);
	  var borderLeftWidth = _parseFloat$2(styles.borderLeftWidth, 10);
	  if (fixedPosition && isHTML) {
	    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;
	  if (!isIE10 && isHTML) {
	    var marginTop = _parseFloat$2(styles.marginTop, 10);
	    var marginLeft = _parseFloat$2(styles.marginLeft, 10);
	    offsets.top -= borderTopWidth - marginTop;
	    offsets.bottom -= borderTopWidth - marginTop;
	    offsets.left -= borderLeftWidth - marginLeft;
	    offsets.right -= borderLeftWidth - marginLeft;
	    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);
	}
	function isFixed(element) {
	  var nodeName = element.nodeName;
	  if (nodeName === 'BODY' || nodeName === 'HTML') {
	    return false;
	  }
	  if (getStyleComputedProperty(element, 'position') === 'fixed') {
	    return true;
	  }
	  var parentNode = getParentNode(element);
	  if (!parentNode) {
	    return false;
	  }
	  return isFixed(parentNode);
	}
	function getFixedPositionOffsetParent(element) {
	  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;
	}
	function getBoundaries(popper, reference, padding, boundariesElement) {
	  var fixedPosition = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
	  var boundaries = {
	    top: 0,
	    left: 0
	  };
	  var offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, reference);
	  if (boundariesElement === 'viewport') {
	    boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
	  } else {
	    var boundariesNode;
	    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);
	    if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
	      var _getWindowSizes = getWindowSizes(popper.ownerDocument),
	        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 {
	      boundaries = offsets;
	    }
	  }
	  padding = padding || 0;
	  var isPaddingNumber = typeof padding === 'number';
	  boundaries.left += isPaddingNumber ? padding : padding.left || 0;
	  boundaries.top += isPaddingNumber ? padding : padding.top || 0;
	  boundaries.right -= isPaddingNumber ? padding : padding.right || 0;
	  boundaries.bottom -= isPaddingNumber ? padding : padding.bottom || 0;
	  return boundaries;
	}
	function getArea(_ref) {
	  var width = _ref.width,
	    height = _ref.height;
	  return width * height;
	}
	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 = keys$1(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 ? "-".concat(variation) : '');
	}
	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);
	}
	function getOuterSizes(element) {
	  var window = element.ownerDocument.defaultView;
	  var styles = window.getComputedStyle(element);
	  var x = _parseFloat$2(styles.marginTop || 0) + _parseFloat$2(styles.marginBottom || 0);
	  var y = _parseFloat$2(styles.marginLeft || 0) + _parseFloat$2(styles.marginRight || 0);
	  var result = {
	    width: element.offsetWidth + y,
	    height: element.offsetHeight + x
	  };
	  return result;
	}
	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];
	  });
	}
	function getPopperOffsets(popper, referenceOffsets, placement) {
	  placement = placement.split('-')[0];
	  var popperRect = getOuterSizes(popper);
	  var popperOffsets = {
	    width: popperRect.width,
	    height: popperRect.height
	  };
	  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;
	}
	function find(arr, check) {
	  if (Array.prototype.find) {
	    return arr.find(check);
	  }
	  return arr.filter(check)[0];
	}
	function findIndex(arr, prop, value) {
	  if (Array.prototype.findIndex) {
	    return arr.findIndex(function (cur) {
	      return cur[prop] === value;
	    });
	  }
	  var match = find(arr, function (obj) {
	    return obj[prop] === value;
	  });
	  return arr.indexOf(match);
	}
	function runModifiers(modifiers, data, ends) {
	  var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));
	  modifiersToRun.forEach(function (modifier) {
	    if (modifier['function']) {
	      console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
	    }
	    var fn = modifier['function'] || modifier.fn;
	    if (modifier.enabled && isFunction(fn)) {
	      data.offsets.popper = getClientRect(data.offsets.popper);
	      data.offsets.reference = getClientRect(data.offsets.reference);
	      data = fn(data, modifier);
	    }
	  });
	  return data;
	}
	function _update() {
	  if (this.state.isDestroyed) {
	    return;
	  }
	  var data = {
	    instance: this,
	    styles: {},
	    arrowStyles: {},
	    attributes: {},
	    flipped: false,
	    offsets: {}
	  };
	  data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference, this.options.positionFixed);
	  data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);
	  data.originalPlacement = data.placement;
	  data.positionFixed = this.options.positionFixed;
	  data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);
	  data.offsets.popper.position = this.options.positionFixed ? 'fixed' : 'absolute';
	  data = runModifiers(this.modifiers, data);
	  if (!this.state.isCreated) {
	    this.state.isCreated = true;
	    this.options.onCreate(data);
	  } else {
	    this.options.onUpdate(data);
	  }
	}
	function isModifierEnabled(modifiers, modifierName) {
	  return modifiers.some(function (_ref3) {
	    var name = _ref3.name,
	      enabled = _ref3.enabled;
	    return enabled && name === modifierName;
	  });
	}
	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 ? "".concat(prefix).concat(upperProp) : property;
	    if (typeof document.body.style[toCheck] !== 'undefined') {
	      return toCheck;
	    }
	  }
	  return null;
	}
	function _destroy() {
	  this.state.isDestroyed = true;
	  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();
	  if (this.options.removeOnDestroy) {
	    this.popper.parentNode.removeChild(this.popper);
	  }
	  return this;
	}
	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);
	}
	function setupEventListeners(reference, options, state, updateBound) {
	  state.updateBound = updateBound;
	  getWindow(reference).addEventListener('resize', state.updateBound, {
	    passive: true
	  });
	  var scrollElement = getScrollParent(reference);
	  attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
	  state.scrollElement = scrollElement;
	  state.eventsEnabled = true;
	  return state;
	}
	function _enableEventListeners() {
	  if (!this.state.eventsEnabled) {
	    this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
	  }
	}
	function removeEventListeners(reference, state) {
	  getWindow(reference).removeEventListener('resize', state.updateBound);
	  state.scrollParents.forEach(function (target) {
	    target.removeEventListener('scroll', state.updateBound);
	  });
	  state.updateBound = null;
	  state.scrollParents = [];
	  state.scrollElement = null;
	  state.eventsEnabled = false;
	  return state;
	}
	function _disableEventListeners() {
	  if (this.state.eventsEnabled) {
	    cancelAnimationFrame(this.scheduleUpdate);
	    this.state = removeEventListeners(this.reference, this.state);
	  }
	}
	function isNumeric(n) {
	  return n !== '' && !isNaN(_parseFloat$2(n)) && isFinite(n);
	}
	function setStyles(element, styles) {
	  keys$1(styles).forEach(function (prop) {
	    var unit = '';
	    if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
	      unit = 'px';
	    }
	    element.style[prop] = styles[prop] + unit;
	  });
	}
	function setAttributes(element, attributes) {
	  keys$1(attributes).forEach(function (prop) {
	    var value = attributes[prop];
	    if (value !== false) {
	      element.setAttribute(prop, attributes[prop]);
	    } else {
	      element.removeAttribute(prop);
	    }
	  });
	}
	function applyStyle(data) {
	  setStyles(data.instance.popper, data.styles);
	  setAttributes(data.instance.popper, data.attributes);
	  if (data.arrowElement && keys$1(data.arrowStyles).length) {
	    setStyles(data.arrowElement, data.arrowStyles);
	  }
	  return data;
	}
	function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
	  var referenceOffsets = getReferenceOffsets(state, popper, reference, options.positionFixed);
	  var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);
	  popper.setAttribute('x-placement', placement);
	  setStyles(popper, {
	    position: options.positionFixed ? 'fixed' : 'absolute'
	  });
	  return options;
	}
	function getRoundedOffsets(data, shouldRound) {
	  var _data$offsets = data.offsets,
	    popper = _data$offsets.popper,
	    reference = _data$offsets.reference;
	  var round = Math.round,
	    floor = Math.floor;
	  var noRound = function noRound(v) {
	    return v;
	  };
	  var referenceWidth = round(reference.width);
	  var popperWidth = round(popper.width);
	  var isVertical = ['left', 'right'].indexOf(data.placement) !== -1;
	  var isVariation = data.placement.indexOf('-') !== -1;
	  var sameWidthParity = referenceWidth % 2 === popperWidth % 2;
	  var bothOddWidth = referenceWidth % 2 === 1 && popperWidth % 2 === 1;
	  var horizontalToInteger = !shouldRound ? noRound : isVertical || isVariation || sameWidthParity ? round : floor;
	  var verticalToInteger = !shouldRound ? noRound : round;
	  return {
	    left: horizontalToInteger(bothOddWidth && !isVariation && shouldRound ? popper.left - 1 : popper.left),
	    top: verticalToInteger(popper.top),
	    bottom: verticalToInteger(popper.bottom),
	    right: horizontalToInteger(popper.right)
	  };
	}
	var isFirefox = isBrowser && /Firefox/i.test(navigator.userAgent);
	function computeStyle(data, options) {
	  var x = options.x,
	    y = options.y;
	  var popper = data.offsets.popper;
	  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);
	  var styles = {
	    position: popper.position
	  };
	  var offsets = getRoundedOffsets(data, window.devicePixelRatio < 2 || !isFirefox);
	  var sideA = x === 'bottom' ? 'top' : 'bottom';
	  var sideB = y === 'right' ? 'left' : 'right';
	  var prefixedProperty = getSupportedPropertyName('transform');
	  var left, top;
	  if (sideA === 'bottom') {
	    if (offsetParent.nodeName === 'HTML') {
	      top = -offsetParent.clientHeight + offsets.bottom;
	    } else {
	      top = -offsetParentRect.height + offsets.bottom;
	    }
	  } else {
	    top = offsets.top;
	  }
	  if (sideB === 'right') {
	    if (offsetParent.nodeName === 'HTML') {
	      left = -offsetParent.clientWidth + offsets.right;
	    } else {
	      left = -offsetParentRect.width + offsets.right;
	    }
	  } else {
	    left = offsets.left;
	  }
	  if (gpuAcceleration && prefixedProperty) {
	    styles[prefixedProperty] = "translate3d(".concat(left, "px, ").concat(top, "px, 0)");
	    styles[sideA] = 0;
	    styles[sideB] = 0;
	  } else {
	    var invertTop = sideA === 'bottom' ? -1 : 1;
	    var invertLeft = sideB === 'right' ? -1 : 1;
	    styles[sideA] = top * invertTop;
	    styles[sideB] = left * invertLeft;
	  }
	  var attributes = {
	    'x-placement': data.placement
	  };
	  data.attributes = _extends$1({}, attributes, data.attributes);
	  data.styles = _extends$1({}, styles, data.styles);
	  data.arrowStyles = _extends$1({}, data.offsets.arrow, data.arrowStyles);
	  return data;
	}
	function isModifierRequired(modifiers, requestingName, requestedName) {
	  var requesting = find(modifiers, function (_ref4) {
	    var name = _ref4.name;
	    return name === requestingName;
	  });
	  var isRequired = !!requesting && modifiers.some(function (modifier) {
	    return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
	  });
	  if (!isRequired) {
	    var _requesting = "`".concat(requestingName, "`");
	    var requested = "`".concat(requestedName, "`");
	    console.warn("".concat(requested, " modifier is required by ").concat(_requesting, " modifier in order to work, be sure to include it before ").concat(_requesting, "!"));
	  }
	  return isRequired;
	}
	function arrow(data, options) {
	  var _data$offsets$arrow;
	  if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
	    return data;
	  }
	  var arrowElement = options.element;
	  if (typeof arrowElement === 'string') {
	    arrowElement = data.instance.popper.querySelector(arrowElement);
	    if (!arrowElement) {
	      return data;
	    }
	  } else {
	    if (!data.instance.popper.contains(arrowElement)) {
	      console.warn('WARNING: `arrow.element` must be child of its popper element!');
	      return data;
	    }
	  }
	  var placement = data.placement.split('-')[0];
	  var _data$offsets2 = data.offsets,
	    popper = _data$offsets2.popper,
	    reference = _data$offsets2.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];
	  if (reference[opSide] - arrowElementSize < popper[side]) {
	    data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
	  }
	  if (reference[side] + arrowElementSize > popper[opSide]) {
	    data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
	  }
	  data.offsets.popper = getClientRect(data.offsets.popper);
	  var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;
	  var css = getStyleComputedProperty(data.instance.popper);
	  var popperMarginSide = _parseFloat$2(css["margin".concat(sideCapitalized)], 10);
	  var popperBorderSide = _parseFloat$2(css["border".concat(sideCapitalized, "Width")], 10);
	  var sideValue = center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;
	  sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);
	  data.arrowElement = arrowElement;
	  data.offsets.arrow = (_data$offsets$arrow = {}, _defineProperty(_data$offsets$arrow, side, Math.round(sideValue)), _defineProperty(_data$offsets$arrow, altSide, ''), _data$offsets$arrow);
	  return data;
	}
	function getOppositeVariation(variation) {
	  if (variation === 'end') {
	    return 'start';
	  } else if (variation === 'start') {
	    return 'end';
	  }
	  return variation;
	}
	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'];
	var validPlacements = placements.slice(3);
	function clockwise(placement) {
	  var counter = arguments.length > 1