` by default. You can change this\n * behavior by providing a `component` prop.\n * If you use React v16+ and would like to avoid a wrapping `
` element\n * you can pass in `component={null}`. This is useful if the wrapping div\n * borks your css styles.\n */\n component: PropTypes.any,\n\n /**\n * A set of `
` components, that are toggled `in` and out as they\n * leave. the `` will inject specific transition props, so\n * remember to spread them through if you are wrapping the `` as\n * with our `` example.\n *\n * While this component is meant for multiple `Transition` or `CSSTransition`\n * children, sometimes you may want to have a single transition child with\n * content that you want to be transitioned out and in when you change it\n * (e.g. routes, images etc.) In that case you can change the `key` prop of\n * the transition child as you change its content, this will cause\n * `TransitionGroup` to transition the child out and back in.\n */\n children: PropTypes.node,\n\n /**\n * A convenience prop that enables or disables appear animations\n * for all children. Note that specifying this will override any defaults set\n * on individual children Transitions.\n */\n appear: PropTypes.bool,\n\n /**\n * A convenience prop that enables or disables enter animations\n * for all children. Note that specifying this will override any defaults set\n * on individual children Transitions.\n */\n enter: PropTypes.bool,\n\n /**\n * A convenience prop that enables or disables exit animations\n * for all children. Note that specifying this will override any defaults set\n * on individual children Transitions.\n */\n exit: PropTypes.bool,\n\n /**\n * You may need to apply reactive updates to a child as it is exiting.\n * This is generally done by using `cloneElement` however in the case of an exiting\n * child the element has already been removed and not accessible to the consumer.\n *\n * If you do need to update a child as it leaves you can provide a `childFactory`\n * to wrap every child, even the ones that are leaving.\n *\n * @type Function(child: ReactElement) -> ReactElement\n */\n childFactory: PropTypes.func\n} : {};\nTransitionGroup.defaultProps = defaultProps;\nexport default TransitionGroup;","import React from 'react';\nexport default React.createContext(null);","export default {\n disabled: false\n};","import _objectWithoutPropertiesLoose from \"@babel/runtime/helpers/esm/objectWithoutPropertiesLoose\";\nimport _inheritsLoose from \"@babel/runtime/helpers/esm/inheritsLoose\";\nimport PropTypes from 'prop-types';\nimport React from 'react';\nimport ReactDOM from 'react-dom';\nimport TransitionGroup from './TransitionGroup';\n/**\n * The `` component is a specialized `Transition` component\n * that animates between two children.\n *\n * ```jsx\n * \n * I appear first
\n * I replace the above
\n * \n * ```\n */\n\nvar ReplaceTransition = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(ReplaceTransition, _React$Component);\n\n function ReplaceTransition() {\n var _this;\n\n for (var _len = arguments.length, _args = new Array(_len), _key = 0; _key < _len; _key++) {\n _args[_key] = arguments[_key];\n }\n\n _this = _React$Component.call.apply(_React$Component, [this].concat(_args)) || this;\n\n _this.handleEnter = function () {\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n return _this.handleLifecycle('onEnter', 0, args);\n };\n\n _this.handleEntering = function () {\n for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n args[_key3] = arguments[_key3];\n }\n\n return _this.handleLifecycle('onEntering', 0, args);\n };\n\n _this.handleEntered = function () {\n for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n args[_key4] = arguments[_key4];\n }\n\n return _this.handleLifecycle('onEntered', 0, args);\n };\n\n _this.handleExit = function () {\n for (var _len5 = arguments.length, args = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {\n args[_key5] = arguments[_key5];\n }\n\n return _this.handleLifecycle('onExit', 1, args);\n };\n\n _this.handleExiting = function () {\n for (var _len6 = arguments.length, args = new Array(_len6), _key6 = 0; _key6 < _len6; _key6++) {\n args[_key6] = arguments[_key6];\n }\n\n return _this.handleLifecycle('onExiting', 1, args);\n };\n\n _this.handleExited = function () {\n for (var _len7 = arguments.length, args = new Array(_len7), _key7 = 0; _key7 < _len7; _key7++) {\n args[_key7] = arguments[_key7];\n }\n\n return _this.handleLifecycle('onExited', 1, args);\n };\n\n return _this;\n }\n\n var _proto = ReplaceTransition.prototype;\n\n _proto.handleLifecycle = function handleLifecycle(handler, idx, originalArgs) {\n var _child$props;\n\n var children = this.props.children;\n var child = React.Children.toArray(children)[idx];\n if (child.props[handler]) (_child$props = child.props)[handler].apply(_child$props, originalArgs);\n\n if (this.props[handler]) {\n var maybeNode = child.props.nodeRef ? undefined : ReactDOM.findDOMNode(this);\n this.props[handler](maybeNode);\n }\n };\n\n _proto.render = function render() {\n var _this$props = this.props,\n children = _this$props.children,\n inProp = _this$props.in,\n props = _objectWithoutPropertiesLoose(_this$props, [\"children\", \"in\"]);\n\n var _React$Children$toArr = React.Children.toArray(children),\n first = _React$Children$toArr[0],\n second = _React$Children$toArr[1];\n\n delete props.onEnter;\n delete props.onEntering;\n delete props.onEntered;\n delete props.onExit;\n delete props.onExiting;\n delete props.onExited;\n return /*#__PURE__*/React.createElement(TransitionGroup, props, inProp ? React.cloneElement(first, {\n key: 'first',\n onEnter: this.handleEnter,\n onEntering: this.handleEntering,\n onEntered: this.handleEntered\n }) : React.cloneElement(second, {\n key: 'second',\n onEnter: this.handleExit,\n onEntering: this.handleExiting,\n onEntered: this.handleExited\n }));\n };\n\n return ReplaceTransition;\n}(React.Component);\n\nReplaceTransition.propTypes = process.env.NODE_ENV !== \"production\" ? {\n in: PropTypes.bool.isRequired,\n children: function children(props, propName) {\n if (React.Children.count(props[propName]) !== 2) return new Error(\"\\\"\" + propName + \"\\\" must be exactly two transition components.\");\n return null;\n }\n} : {};\nexport default ReplaceTransition;","import _inheritsLoose from \"@babel/runtime/helpers/esm/inheritsLoose\";\n\nvar _leaveRenders, _enterRenders;\n\nimport React from 'react';\nimport PropTypes from 'prop-types';\nimport { ENTERED, ENTERING, EXITING } from './Transition';\nimport TransitionGroupContext from './TransitionGroupContext';\n\nfunction areChildrenDifferent(oldChildren, newChildren) {\n if (oldChildren === newChildren) return false;\n\n if (React.isValidElement(oldChildren) && React.isValidElement(newChildren) && oldChildren.key != null && oldChildren.key === newChildren.key) {\n return false;\n }\n\n return true;\n}\n/**\n * Enum of modes for SwitchTransition component\n * @enum { string }\n */\n\n\nexport var modes = {\n out: 'out-in',\n in: 'in-out'\n};\n\nvar callHook = function callHook(element, name, cb) {\n return function () {\n var _element$props;\n\n element.props[name] && (_element$props = element.props)[name].apply(_element$props, arguments);\n cb();\n };\n};\n\nvar leaveRenders = (_leaveRenders = {}, _leaveRenders[modes.out] = function (_ref) {\n var current = _ref.current,\n changeState = _ref.changeState;\n return React.cloneElement(current, {\n in: false,\n onExited: callHook(current, 'onExited', function () {\n changeState(ENTERING, null);\n })\n });\n}, _leaveRenders[modes.in] = function (_ref2) {\n var current = _ref2.current,\n changeState = _ref2.changeState,\n children = _ref2.children;\n return [current, React.cloneElement(children, {\n in: true,\n onEntered: callHook(children, 'onEntered', function () {\n changeState(ENTERING);\n })\n })];\n}, _leaveRenders);\nvar enterRenders = (_enterRenders = {}, _enterRenders[modes.out] = function (_ref3) {\n var children = _ref3.children,\n changeState = _ref3.changeState;\n return React.cloneElement(children, {\n in: true,\n onEntered: callHook(children, 'onEntered', function () {\n changeState(ENTERED, React.cloneElement(children, {\n in: true\n }));\n })\n });\n}, _enterRenders[modes.in] = function (_ref4) {\n var current = _ref4.current,\n children = _ref4.children,\n changeState = _ref4.changeState;\n return [React.cloneElement(current, {\n in: false,\n onExited: callHook(current, 'onExited', function () {\n changeState(ENTERED, React.cloneElement(children, {\n in: true\n }));\n })\n }), React.cloneElement(children, {\n in: true\n })];\n}, _enterRenders);\n/**\n * A transition component inspired by the [vue transition modes](https://vuejs.org/v2/guide/transitions.html#Transition-Modes).\n * You can use it when you want to control the render between state transitions.\n * Based on the selected mode and the child's key which is the `Transition` or `CSSTransition` component, the `SwitchTransition` makes a consistent transition between them.\n *\n * If the `out-in` mode is selected, the `SwitchTransition` waits until the old child leaves and then inserts a new child.\n * If the `in-out` mode is selected, the `SwitchTransition` inserts a new child first, waits for the new child to enter and then removes the old child.\n *\n * **Note**: If you want the animation to happen simultaneously\n * (that is, to have the old child removed and a new child inserted **at the same time**),\n * you should use\n * [`TransitionGroup`](https://reactcommunity.org/react-transition-group/transition-group)\n * instead.\n *\n * ```jsx\n * function App() {\n * const [state, setState] = useState(false);\n * return (\n * \n * node.addEventListener(\"transitionend\", done, false)}\n * classNames='fade'\n * >\n * \n * \n * \n * );\n * }\n * ```\n *\n * ```css\n * .fade-enter{\n * opacity: 0;\n * }\n * .fade-exit{\n * opacity: 1;\n * }\n * .fade-enter-active{\n * opacity: 1;\n * }\n * .fade-exit-active{\n * opacity: 0;\n * }\n * .fade-enter-active,\n * .fade-exit-active{\n * transition: opacity 500ms;\n * }\n * ```\n */\n\nvar SwitchTransition = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(SwitchTransition, _React$Component);\n\n function SwitchTransition() {\n var _this;\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;\n _this.state = {\n status: ENTERED,\n current: null\n };\n _this.appeared = false;\n\n _this.changeState = function (status, current) {\n if (current === void 0) {\n current = _this.state.current;\n }\n\n _this.setState({\n status: status,\n current: current\n });\n };\n\n return _this;\n }\n\n var _proto = SwitchTransition.prototype;\n\n _proto.componentDidMount = function componentDidMount() {\n this.appeared = true;\n };\n\n SwitchTransition.getDerivedStateFromProps = function getDerivedStateFromProps(props, state) {\n if (props.children == null) {\n return {\n current: null\n };\n }\n\n if (state.status === ENTERING && props.mode === modes.in) {\n return {\n status: ENTERING\n };\n }\n\n if (state.current && areChildrenDifferent(state.current, props.children)) {\n return {\n status: EXITING\n };\n }\n\n return {\n current: React.cloneElement(props.children, {\n in: true\n })\n };\n };\n\n _proto.render = function render() {\n var _this$props = this.props,\n children = _this$props.children,\n mode = _this$props.mode,\n _this$state = this.state,\n status = _this$state.status,\n current = _this$state.current;\n var data = {\n children: children,\n current: current,\n changeState: this.changeState,\n status: status\n };\n var component;\n\n switch (status) {\n case ENTERING:\n component = enterRenders[mode](data);\n break;\n\n case EXITING:\n component = leaveRenders[mode](data);\n break;\n\n case ENTERED:\n component = current;\n }\n\n return /*#__PURE__*/React.createElement(TransitionGroupContext.Provider, {\n value: {\n isMounting: !this.appeared\n }\n }, component);\n };\n\n return SwitchTransition;\n}(React.Component);\n\nSwitchTransition.propTypes = process.env.NODE_ENV !== \"production\" ? {\n /**\n * Transition modes.\n * `out-in`: Current element transitions out first, then when complete, the new element transitions in.\n * `in-out`: New element transitions in first, then when complete, the current element transitions out.\n *\n * @type {'out-in'|'in-out'}\n */\n mode: PropTypes.oneOf([modes.in, modes.out]),\n\n /**\n * Any `Transition` or `CSSTransition` component.\n */\n children: PropTypes.oneOfType([PropTypes.element.isRequired])\n} : {};\nSwitchTransition.defaultProps = {\n mode: modes.out\n};\nexport default SwitchTransition;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n'use strict';\n\nvar ReactPropTypesSecret = require('./lib/ReactPropTypesSecret');\n\nfunction emptyFunction() {}\nfunction emptyFunctionWithReset() {}\nemptyFunctionWithReset.resetWarningCache = emptyFunction;\n\nmodule.exports = function() {\n function shim(props, propName, componentName, location, propFullName, secret) {\n if (secret === ReactPropTypesSecret) {\n // It is still safe when called from React.\n return;\n }\n var err = new Error(\n 'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +\n 'Use PropTypes.checkPropTypes() to call them. ' +\n 'Read more at http://fb.me/use-check-prop-types'\n );\n err.name = 'Invariant Violation';\n throw err;\n };\n shim.isRequired = shim;\n function getShim() {\n return shim;\n };\n // Important!\n // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.\n var ReactPropTypes = {\n array: shim,\n bigint: shim,\n bool: shim,\n func: shim,\n number: shim,\n object: shim,\n string: shim,\n symbol: shim,\n\n any: shim,\n arrayOf: getShim,\n element: shim,\n elementType: shim,\n instanceOf: getShim,\n node: shim,\n objectOf: getShim,\n oneOf: getShim,\n oneOfType: getShim,\n shape: getShim,\n exact: getShim,\n\n checkPropTypes: emptyFunctionWithReset,\n resetWarningCache: emptyFunction\n };\n\n ReactPropTypes.PropTypes = ReactPropTypes;\n\n return ReactPropTypes;\n};\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\nif (process.env.NODE_ENV !== 'production') {\n var ReactIs = require('react-is');\n\n // By explicitly using `prop-types` you are opting into new development behavior.\n // http://fb.me/prop-types-in-prod\n var throwOnDirectAccess = true;\n module.exports = require('./factoryWithTypeCheckers')(ReactIs.isElement, throwOnDirectAccess);\n} else {\n // By explicitly using `prop-types` you are opting into new production behavior.\n // http://fb.me/prop-types-in-prod\n module.exports = require('./factoryWithThrowingShims')();\n}\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n'use strict';\n\nvar ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';\n\nmodule.exports = ReactPropTypesSecret;\n","/** @license React v17.0.2\n * react-jsx-runtime.production.min.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict';require(\"object-assign\");var f=require(\"react\"),g=60103;exports.Fragment=60107;if(\"function\"===typeof Symbol&&Symbol.for){var h=Symbol.for;g=h(\"react.element\");exports.Fragment=h(\"react.fragment\")}var m=f.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.ReactCurrentOwner,n=Object.prototype.hasOwnProperty,p={key:!0,ref:!0,__self:!0,__source:!0};\nfunction q(c,a,k){var b,d={},e=null,l=null;void 0!==k&&(e=\"\"+k);void 0!==a.key&&(e=\"\"+a.key);void 0!==a.ref&&(l=a.ref);for(b in a)n.call(a,b)&&!p.hasOwnProperty(b)&&(d[b]=a[b]);if(c&&c.defaultProps)for(b in a=c.defaultProps,a)void 0===d[b]&&(d[b]=a[b]);return{$$typeof:g,type:c,key:e,ref:l,props:d,_owner:m.current}}exports.jsx=q;exports.jsxs=q;\n","/** @license React v17.0.2\n * react.production.min.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict';var l=require(\"object-assign\"),n=60103,p=60106;exports.Fragment=60107;exports.StrictMode=60108;exports.Profiler=60114;var q=60109,r=60110,t=60112;exports.Suspense=60113;var u=60115,v=60116;\nif(\"function\"===typeof Symbol&&Symbol.for){var w=Symbol.for;n=w(\"react.element\");p=w(\"react.portal\");exports.Fragment=w(\"react.fragment\");exports.StrictMode=w(\"react.strict_mode\");exports.Profiler=w(\"react.profiler\");q=w(\"react.provider\");r=w(\"react.context\");t=w(\"react.forward_ref\");exports.Suspense=w(\"react.suspense\");u=w(\"react.memo\");v=w(\"react.lazy\")}var x=\"function\"===typeof Symbol&&Symbol.iterator;\nfunction y(a){if(null===a||\"object\"!==typeof a)return null;a=x&&a[x]||a[\"@@iterator\"];return\"function\"===typeof a?a:null}function z(a){for(var b=\"https://reactjs.org/docs/error-decoder.html?invariant=\"+a,c=1;c} arr\r\n * @param {*} key\r\n * @returns {number}\r\n */\r\n function getIndex(arr, key) {\r\n var result = -1;\r\n arr.some(function (entry, index) {\r\n if (entry[0] === key) {\r\n result = index;\r\n return true;\r\n }\r\n return false;\r\n });\r\n return result;\r\n }\r\n return /** @class */ (function () {\r\n function class_1() {\r\n this.__entries__ = [];\r\n }\r\n Object.defineProperty(class_1.prototype, \"size\", {\r\n /**\r\n * @returns {boolean}\r\n */\r\n get: function () {\r\n return this.__entries__.length;\r\n },\r\n enumerable: true,\r\n configurable: true\r\n });\r\n /**\r\n * @param {*} key\r\n * @returns {*}\r\n */\r\n class_1.prototype.get = function (key) {\r\n var index = getIndex(this.__entries__, key);\r\n var entry = this.__entries__[index];\r\n return entry && entry[1];\r\n };\r\n /**\r\n * @param {*} key\r\n * @param {*} value\r\n * @returns {void}\r\n */\r\n class_1.prototype.set = function (key, value) {\r\n var index = getIndex(this.__entries__, key);\r\n if (~index) {\r\n this.__entries__[index][1] = value;\r\n }\r\n else {\r\n this.__entries__.push([key, value]);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.delete = function (key) {\r\n var entries = this.__entries__;\r\n var index = getIndex(entries, key);\r\n if (~index) {\r\n entries.splice(index, 1);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.has = function (key) {\r\n return !!~getIndex(this.__entries__, key);\r\n };\r\n /**\r\n * @returns {void}\r\n */\r\n class_1.prototype.clear = function () {\r\n this.__entries__.splice(0);\r\n };\r\n /**\r\n * @param {Function} callback\r\n * @param {*} [ctx=null]\r\n * @returns {void}\r\n */\r\n class_1.prototype.forEach = function (callback, ctx) {\r\n if (ctx === void 0) { ctx = null; }\r\n for (var _i = 0, _a = this.__entries__; _i < _a.length; _i++) {\r\n var entry = _a[_i];\r\n callback.call(ctx, entry[1], entry[0]);\r\n }\r\n };\r\n return class_1;\r\n }());\r\n})();\n\n/**\r\n * Detects whether window and document objects are available in current environment.\r\n */\r\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && window.document === document;\n\n// Returns global object of a current environment.\r\nvar global$1 = (function () {\r\n if (typeof global !== 'undefined' && global.Math === Math) {\r\n return global;\r\n }\r\n if (typeof self !== 'undefined' && self.Math === Math) {\r\n return self;\r\n }\r\n if (typeof window !== 'undefined' && window.Math === Math) {\r\n return window;\r\n }\r\n // eslint-disable-next-line no-new-func\r\n return Function('return this')();\r\n})();\n\n/**\r\n * A shim for the requestAnimationFrame which falls back to the setTimeout if\r\n * first one is not supported.\r\n *\r\n * @returns {number} Requests' identifier.\r\n */\r\nvar requestAnimationFrame$1 = (function () {\r\n if (typeof requestAnimationFrame === 'function') {\r\n // It's required to use a bounded function because IE sometimes throws\r\n // an \"Invalid calling object\" error if rAF is invoked without the global\r\n // object on the left hand side.\r\n return requestAnimationFrame.bind(global$1);\r\n }\r\n return function (callback) { return setTimeout(function () { return callback(Date.now()); }, 1000 / 60); };\r\n})();\n\n// Defines minimum timeout before adding a trailing call.\r\nvar trailingTimeout = 2;\r\n/**\r\n * Creates a wrapper function which ensures that provided callback will be\r\n * invoked only once during the specified delay period.\r\n *\r\n * @param {Function} callback - Function to be invoked after the delay period.\r\n * @param {number} delay - Delay after which to invoke callback.\r\n * @returns {Function}\r\n */\r\nfunction throttle (callback, delay) {\r\n var leadingCall = false, trailingCall = false, lastCallTime = 0;\r\n /**\r\n * Invokes the original callback function and schedules new invocation if\r\n * the \"proxy\" was called during current request.\r\n *\r\n * @returns {void}\r\n */\r\n function resolvePending() {\r\n if (leadingCall) {\r\n leadingCall = false;\r\n callback();\r\n }\r\n if (trailingCall) {\r\n proxy();\r\n }\r\n }\r\n /**\r\n * Callback invoked after the specified delay. It will further postpone\r\n * invocation of the original function delegating it to the\r\n * requestAnimationFrame.\r\n *\r\n * @returns {void}\r\n */\r\n function timeoutCallback() {\r\n requestAnimationFrame$1(resolvePending);\r\n }\r\n /**\r\n * Schedules invocation of the original function.\r\n *\r\n * @returns {void}\r\n */\r\n function proxy() {\r\n var timeStamp = Date.now();\r\n if (leadingCall) {\r\n // Reject immediately following calls.\r\n if (timeStamp - lastCallTime < trailingTimeout) {\r\n return;\r\n }\r\n // Schedule new call to be in invoked when the pending one is resolved.\r\n // This is important for \"transitions\" which never actually start\r\n // immediately so there is a chance that we might miss one if change\r\n // happens amids the pending invocation.\r\n trailingCall = true;\r\n }\r\n else {\r\n leadingCall = true;\r\n trailingCall = false;\r\n setTimeout(timeoutCallback, delay);\r\n }\r\n lastCallTime = timeStamp;\r\n }\r\n return proxy;\r\n}\n\n// Minimum delay before invoking the update of observers.\r\nvar REFRESH_DELAY = 20;\r\n// A list of substrings of CSS properties used to find transition events that\r\n// might affect dimensions of observed elements.\r\nvar transitionKeys = ['top', 'right', 'bottom', 'left', 'width', 'height', 'size', 'weight'];\r\n// Check if MutationObserver is available.\r\nvar mutationObserverSupported = typeof MutationObserver !== 'undefined';\r\n/**\r\n * Singleton controller class which handles updates of ResizeObserver instances.\r\n */\r\nvar ResizeObserverController = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserverController.\r\n *\r\n * @private\r\n */\r\n function ResizeObserverController() {\r\n /**\r\n * Indicates whether DOM listeners have been added.\r\n *\r\n * @private {boolean}\r\n */\r\n this.connected_ = false;\r\n /**\r\n * Tells that controller has subscribed for Mutation Events.\r\n *\r\n * @private {boolean}\r\n */\r\n this.mutationEventsAdded_ = false;\r\n /**\r\n * Keeps reference to the instance of MutationObserver.\r\n *\r\n * @private {MutationObserver}\r\n */\r\n this.mutationsObserver_ = null;\r\n /**\r\n * A list of connected observers.\r\n *\r\n * @private {Array}\r\n */\r\n this.observers_ = [];\r\n this.onTransitionEnd_ = this.onTransitionEnd_.bind(this);\r\n this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY);\r\n }\r\n /**\r\n * Adds observer to observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be added.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.addObserver = function (observer) {\r\n if (!~this.observers_.indexOf(observer)) {\r\n this.observers_.push(observer);\r\n }\r\n // Add listeners if they haven't been added yet.\r\n if (!this.connected_) {\r\n this.connect_();\r\n }\r\n };\r\n /**\r\n * Removes observer from observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be removed.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.removeObserver = function (observer) {\r\n var observers = this.observers_;\r\n var index = observers.indexOf(observer);\r\n // Remove observer if it's present in registry.\r\n if (~index) {\r\n observers.splice(index, 1);\r\n }\r\n // Remove listeners if controller has no connected observers.\r\n if (!observers.length && this.connected_) {\r\n this.disconnect_();\r\n }\r\n };\r\n /**\r\n * Invokes the update of observers. It will continue running updates insofar\r\n * it detects changes.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.refresh = function () {\r\n var changesDetected = this.updateObservers_();\r\n // Continue running updates if changes have been detected as there might\r\n // be future ones caused by CSS transitions.\r\n if (changesDetected) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Updates every observer from observers list and notifies them of queued\r\n * entries.\r\n *\r\n * @private\r\n * @returns {boolean} Returns \"true\" if any observer has detected changes in\r\n * dimensions of it's elements.\r\n */\r\n ResizeObserverController.prototype.updateObservers_ = function () {\r\n // Collect observers that have active observations.\r\n var activeObservers = this.observers_.filter(function (observer) {\r\n return observer.gatherActive(), observer.hasActive();\r\n });\r\n // Deliver notifications in a separate cycle in order to avoid any\r\n // collisions between observers, e.g. when multiple instances of\r\n // ResizeObserver are tracking the same element and the callback of one\r\n // of them changes content dimensions of the observed target. Sometimes\r\n // this may result in notifications being blocked for the rest of observers.\r\n activeObservers.forEach(function (observer) { return observer.broadcastActive(); });\r\n return activeObservers.length > 0;\r\n };\r\n /**\r\n * Initializes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.connect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already added.\r\n if (!isBrowser || this.connected_) {\r\n return;\r\n }\r\n // Subscription to the \"Transitionend\" event is used as a workaround for\r\n // delayed transitions. This way it's possible to capture at least the\r\n // final state of an element.\r\n document.addEventListener('transitionend', this.onTransitionEnd_);\r\n window.addEventListener('resize', this.refresh);\r\n if (mutationObserverSupported) {\r\n this.mutationsObserver_ = new MutationObserver(this.refresh);\r\n this.mutationsObserver_.observe(document, {\r\n attributes: true,\r\n childList: true,\r\n characterData: true,\r\n subtree: true\r\n });\r\n }\r\n else {\r\n document.addEventListener('DOMSubtreeModified', this.refresh);\r\n this.mutationEventsAdded_ = true;\r\n }\r\n this.connected_ = true;\r\n };\r\n /**\r\n * Removes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.disconnect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already removed.\r\n if (!isBrowser || !this.connected_) {\r\n return;\r\n }\r\n document.removeEventListener('transitionend', this.onTransitionEnd_);\r\n window.removeEventListener('resize', this.refresh);\r\n if (this.mutationsObserver_) {\r\n this.mutationsObserver_.disconnect();\r\n }\r\n if (this.mutationEventsAdded_) {\r\n document.removeEventListener('DOMSubtreeModified', this.refresh);\r\n }\r\n this.mutationsObserver_ = null;\r\n this.mutationEventsAdded_ = false;\r\n this.connected_ = false;\r\n };\r\n /**\r\n * \"Transitionend\" event handler.\r\n *\r\n * @private\r\n * @param {TransitionEvent} event\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.onTransitionEnd_ = function (_a) {\r\n var _b = _a.propertyName, propertyName = _b === void 0 ? '' : _b;\r\n // Detect whether transition may affect dimensions of an element.\r\n var isReflowProperty = transitionKeys.some(function (key) {\r\n return !!~propertyName.indexOf(key);\r\n });\r\n if (isReflowProperty) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Returns instance of the ResizeObserverController.\r\n *\r\n * @returns {ResizeObserverController}\r\n */\r\n ResizeObserverController.getInstance = function () {\r\n if (!this.instance_) {\r\n this.instance_ = new ResizeObserverController();\r\n }\r\n return this.instance_;\r\n };\r\n /**\r\n * Holds reference to the controller's instance.\r\n *\r\n * @private {ResizeObserverController}\r\n */\r\n ResizeObserverController.instance_ = null;\r\n return ResizeObserverController;\r\n}());\n\n/**\r\n * Defines non-writable/enumerable properties of the provided target object.\r\n *\r\n * @param {Object} target - Object for which to define properties.\r\n * @param {Object} props - Properties to be defined.\r\n * @returns {Object} Target object.\r\n */\r\nvar defineConfigurable = (function (target, props) {\r\n for (var _i = 0, _a = Object.keys(props); _i < _a.length; _i++) {\r\n var key = _a[_i];\r\n Object.defineProperty(target, key, {\r\n value: props[key],\r\n enumerable: false,\r\n writable: false,\r\n configurable: true\r\n });\r\n }\r\n return target;\r\n});\n\n/**\r\n * Returns the global object associated with provided element.\r\n *\r\n * @param {Object} target\r\n * @returns {Object}\r\n */\r\nvar getWindowOf = (function (target) {\r\n // Assume that the element is an instance of Node, which means that it\r\n // has the \"ownerDocument\" property from which we can retrieve a\r\n // corresponding global object.\r\n var ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;\r\n // Return the local global object if it's not possible extract one from\r\n // provided element.\r\n return ownerGlobal || global$1;\r\n});\n\n// Placeholder of an empty content rectangle.\r\nvar emptyRect = createRectInit(0, 0, 0, 0);\r\n/**\r\n * Converts provided string to a number.\r\n *\r\n * @param {number|string} value\r\n * @returns {number}\r\n */\r\nfunction toFloat(value) {\r\n return parseFloat(value) || 0;\r\n}\r\n/**\r\n * Extracts borders size from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @param {...string} positions - Borders positions (top, right, ...)\r\n * @returns {number}\r\n */\r\nfunction getBordersSize(styles) {\r\n var positions = [];\r\n for (var _i = 1; _i < arguments.length; _i++) {\r\n positions[_i - 1] = arguments[_i];\r\n }\r\n return positions.reduce(function (size, position) {\r\n var value = styles['border-' + position + '-width'];\r\n return size + toFloat(value);\r\n }, 0);\r\n}\r\n/**\r\n * Extracts paddings sizes from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @returns {Object} Paddings box.\r\n */\r\nfunction getPaddings(styles) {\r\n var positions = ['top', 'right', 'bottom', 'left'];\r\n var paddings = {};\r\n for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {\r\n var position = positions_1[_i];\r\n var value = styles['padding-' + position];\r\n paddings[position] = toFloat(value);\r\n }\r\n return paddings;\r\n}\r\n/**\r\n * Calculates content rectangle of provided SVG element.\r\n *\r\n * @param {SVGGraphicsElement} target - Element content rectangle of which needs\r\n * to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getSVGContentRect(target) {\r\n var bbox = target.getBBox();\r\n return createRectInit(0, 0, bbox.width, bbox.height);\r\n}\r\n/**\r\n * Calculates content rectangle of provided HTMLElement.\r\n *\r\n * @param {HTMLElement} target - Element for which to calculate the content rectangle.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getHTMLElementContentRect(target) {\r\n // Client width & height properties can't be\r\n // used exclusively as they provide rounded values.\r\n var clientWidth = target.clientWidth, clientHeight = target.clientHeight;\r\n // By this condition we can catch all non-replaced inline, hidden and\r\n // detached elements. Though elements with width & height properties less\r\n // than 0.5 will be discarded as well.\r\n //\r\n // Without it we would need to implement separate methods for each of\r\n // those cases and it's not possible to perform a precise and performance\r\n // effective test for hidden elements. E.g. even jQuery's ':visible' filter\r\n // gives wrong results for elements with width & height less than 0.5.\r\n if (!clientWidth && !clientHeight) {\r\n return emptyRect;\r\n }\r\n var styles = getWindowOf(target).getComputedStyle(target);\r\n var paddings = getPaddings(styles);\r\n var horizPad = paddings.left + paddings.right;\r\n var vertPad = paddings.top + paddings.bottom;\r\n // Computed styles of width & height are being used because they are the\r\n // only dimensions available to JS that contain non-rounded values. It could\r\n // be possible to utilize the getBoundingClientRect if only it's data wasn't\r\n // affected by CSS transformations let alone paddings, borders and scroll bars.\r\n var width = toFloat(styles.width), height = toFloat(styles.height);\r\n // Width & height include paddings and borders when the 'border-box' box\r\n // model is applied (except for IE).\r\n if (styles.boxSizing === 'border-box') {\r\n // Following conditions are required to handle Internet Explorer which\r\n // doesn't include paddings and borders to computed CSS dimensions.\r\n //\r\n // We can say that if CSS dimensions + paddings are equal to the \"client\"\r\n // properties then it's either IE, and thus we don't need to subtract\r\n // anything, or an element merely doesn't have paddings/borders styles.\r\n if (Math.round(width + horizPad) !== clientWidth) {\r\n width -= getBordersSize(styles, 'left', 'right') + horizPad;\r\n }\r\n if (Math.round(height + vertPad) !== clientHeight) {\r\n height -= getBordersSize(styles, 'top', 'bottom') + vertPad;\r\n }\r\n }\r\n // Following steps can't be applied to the document's root element as its\r\n // client[Width/Height] properties represent viewport area of the window.\r\n // Besides, it's as well not necessary as the itself neither has\r\n // rendered scroll bars nor it can be clipped.\r\n if (!isDocumentElement(target)) {\r\n // In some browsers (only in Firefox, actually) CSS width & height\r\n // include scroll bars size which can be removed at this step as scroll\r\n // bars are the only difference between rounded dimensions + paddings\r\n // and \"client\" properties, though that is not always true in Chrome.\r\n var vertScrollbar = Math.round(width + horizPad) - clientWidth;\r\n var horizScrollbar = Math.round(height + vertPad) - clientHeight;\r\n // Chrome has a rather weird rounding of \"client\" properties.\r\n // E.g. for an element with content width of 314.2px it sometimes gives\r\n // the client width of 315px and for the width of 314.7px it may give\r\n // 314px. And it doesn't happen all the time. So just ignore this delta\r\n // as a non-relevant.\r\n if (Math.abs(vertScrollbar) !== 1) {\r\n width -= vertScrollbar;\r\n }\r\n if (Math.abs(horizScrollbar) !== 1) {\r\n height -= horizScrollbar;\r\n }\r\n }\r\n return createRectInit(paddings.left, paddings.top, width, height);\r\n}\r\n/**\r\n * Checks whether provided element is an instance of the SVGGraphicsElement.\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nvar isSVGGraphicsElement = (function () {\r\n // Some browsers, namely IE and Edge, don't have the SVGGraphicsElement\r\n // interface.\r\n if (typeof SVGGraphicsElement !== 'undefined') {\r\n return function (target) { return target instanceof getWindowOf(target).SVGGraphicsElement; };\r\n }\r\n // If it's so, then check that element is at least an instance of the\r\n // SVGElement and that it has the \"getBBox\" method.\r\n // eslint-disable-next-line no-extra-parens\r\n return function (target) { return (target instanceof getWindowOf(target).SVGElement &&\r\n typeof target.getBBox === 'function'); };\r\n})();\r\n/**\r\n * Checks whether provided element is a document element ().\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nfunction isDocumentElement(target) {\r\n return target === getWindowOf(target).document.documentElement;\r\n}\r\n/**\r\n * Calculates an appropriate content rectangle for provided html or svg element.\r\n *\r\n * @param {Element} target - Element content rectangle of which needs to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getContentRect(target) {\r\n if (!isBrowser) {\r\n return emptyRect;\r\n }\r\n if (isSVGGraphicsElement(target)) {\r\n return getSVGContentRect(target);\r\n }\r\n return getHTMLElementContentRect(target);\r\n}\r\n/**\r\n * Creates rectangle with an interface of the DOMRectReadOnly.\r\n * Spec: https://drafts.fxtf.org/geometry/#domrectreadonly\r\n *\r\n * @param {DOMRectInit} rectInit - Object with rectangle's x/y coordinates and dimensions.\r\n * @returns {DOMRectReadOnly}\r\n */\r\nfunction createReadOnlyRect(_a) {\r\n var x = _a.x, y = _a.y, width = _a.width, height = _a.height;\r\n // If DOMRectReadOnly is available use it as a prototype for the rectangle.\r\n var Constr = typeof DOMRectReadOnly !== 'undefined' ? DOMRectReadOnly : Object;\r\n var rect = Object.create(Constr.prototype);\r\n // Rectangle's properties are not writable and non-enumerable.\r\n defineConfigurable(rect, {\r\n x: x, y: y, width: width, height: height,\r\n top: y,\r\n right: x + width,\r\n bottom: height + y,\r\n left: x\r\n });\r\n return rect;\r\n}\r\n/**\r\n * Creates DOMRectInit object based on the provided dimensions and the x/y coordinates.\r\n * Spec: https://drafts.fxtf.org/geometry/#dictdef-domrectinit\r\n *\r\n * @param {number} x - X coordinate.\r\n * @param {number} y - Y coordinate.\r\n * @param {number} width - Rectangle's width.\r\n * @param {number} height - Rectangle's height.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction createRectInit(x, y, width, height) {\r\n return { x: x, y: y, width: width, height: height };\r\n}\n\n/**\r\n * Class that is responsible for computations of the content rectangle of\r\n * provided DOM element and for keeping track of it's changes.\r\n */\r\nvar ResizeObservation = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObservation.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n */\r\n function ResizeObservation(target) {\r\n /**\r\n * Broadcasted width of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastWidth = 0;\r\n /**\r\n * Broadcasted height of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastHeight = 0;\r\n /**\r\n * Reference to the last observed content rectangle.\r\n *\r\n * @private {DOMRectInit}\r\n */\r\n this.contentRect_ = createRectInit(0, 0, 0, 0);\r\n this.target = target;\r\n }\r\n /**\r\n * Updates content rectangle and tells whether it's width or height properties\r\n * have changed since the last broadcast.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObservation.prototype.isActive = function () {\r\n var rect = getContentRect(this.target);\r\n this.contentRect_ = rect;\r\n return (rect.width !== this.broadcastWidth ||\r\n rect.height !== this.broadcastHeight);\r\n };\r\n /**\r\n * Updates 'broadcastWidth' and 'broadcastHeight' properties with a data\r\n * from the corresponding properties of the last observed content rectangle.\r\n *\r\n * @returns {DOMRectInit} Last observed content rectangle.\r\n */\r\n ResizeObservation.prototype.broadcastRect = function () {\r\n var rect = this.contentRect_;\r\n this.broadcastWidth = rect.width;\r\n this.broadcastHeight = rect.height;\r\n return rect;\r\n };\r\n return ResizeObservation;\r\n}());\n\nvar ResizeObserverEntry = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObserverEntry.\r\n *\r\n * @param {Element} target - Element that is being observed.\r\n * @param {DOMRectInit} rectInit - Data of the element's content rectangle.\r\n */\r\n function ResizeObserverEntry(target, rectInit) {\r\n var contentRect = createReadOnlyRect(rectInit);\r\n // According to the specification following properties are not writable\r\n // and are also not enumerable in the native implementation.\r\n //\r\n // Property accessors are not being used as they'd require to define a\r\n // private WeakMap storage which may cause memory leaks in browsers that\r\n // don't support this type of collections.\r\n defineConfigurable(this, { target: target, contentRect: contentRect });\r\n }\r\n return ResizeObserverEntry;\r\n}());\n\nvar ResizeObserverSPI = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback function that is invoked\r\n * when one of the observed elements changes it's content dimensions.\r\n * @param {ResizeObserverController} controller - Controller instance which\r\n * is responsible for the updates of observer.\r\n * @param {ResizeObserver} callbackCtx - Reference to the public\r\n * ResizeObserver instance which will be passed to callback function.\r\n */\r\n function ResizeObserverSPI(callback, controller, callbackCtx) {\r\n /**\r\n * Collection of resize observations that have detected changes in dimensions\r\n * of elements.\r\n *\r\n * @private {Array}\r\n */\r\n this.activeObservations_ = [];\r\n /**\r\n * Registry of the ResizeObservation instances.\r\n *\r\n * @private {Map}\r\n */\r\n this.observations_ = new MapShim();\r\n if (typeof callback !== 'function') {\r\n throw new TypeError('The callback provided as parameter 1 is not a function.');\r\n }\r\n this.callback_ = callback;\r\n this.controller_ = controller;\r\n this.callbackCtx_ = callbackCtx;\r\n }\r\n /**\r\n * Starts observing provided element.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.observe = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is already being observed.\r\n if (observations.has(target)) {\r\n return;\r\n }\r\n observations.set(target, new ResizeObservation(target));\r\n this.controller_.addObserver(this);\r\n // Force the update of observations.\r\n this.controller_.refresh();\r\n };\r\n /**\r\n * Stops observing provided element.\r\n *\r\n * @param {Element} target - Element to stop observing.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.unobserve = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is not being observed.\r\n if (!observations.has(target)) {\r\n return;\r\n }\r\n observations.delete(target);\r\n if (!observations.size) {\r\n this.controller_.removeObserver(this);\r\n }\r\n };\r\n /**\r\n * Stops observing all elements.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.disconnect = function () {\r\n this.clearActive();\r\n this.observations_.clear();\r\n this.controller_.removeObserver(this);\r\n };\r\n /**\r\n * Collects observation instances the associated element of which has changed\r\n * it's content rectangle.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.gatherActive = function () {\r\n var _this = this;\r\n this.clearActive();\r\n this.observations_.forEach(function (observation) {\r\n if (observation.isActive()) {\r\n _this.activeObservations_.push(observation);\r\n }\r\n });\r\n };\r\n /**\r\n * Invokes initial callback function with a list of ResizeObserverEntry\r\n * instances collected from active resize observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.broadcastActive = function () {\r\n // Do nothing if observer doesn't have active observations.\r\n if (!this.hasActive()) {\r\n return;\r\n }\r\n var ctx = this.callbackCtx_;\r\n // Create ResizeObserverEntry instance for every active observation.\r\n var entries = this.activeObservations_.map(function (observation) {\r\n return new ResizeObserverEntry(observation.target, observation.broadcastRect());\r\n });\r\n this.callback_.call(ctx, entries, ctx);\r\n this.clearActive();\r\n };\r\n /**\r\n * Clears the collection of active observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.clearActive = function () {\r\n this.activeObservations_.splice(0);\r\n };\r\n /**\r\n * Tells whether observer has active observations.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObserverSPI.prototype.hasActive = function () {\r\n return this.activeObservations_.length > 0;\r\n };\r\n return ResizeObserverSPI;\r\n}());\n\n// Registry of internal observers. If WeakMap is not available use current shim\r\n// for the Map collection as it has all required methods and because WeakMap\r\n// can't be fully polyfilled anyway.\r\nvar observers = typeof WeakMap !== 'undefined' ? new WeakMap() : new MapShim();\r\n/**\r\n * ResizeObserver API. Encapsulates the ResizeObserver SPI implementation\r\n * exposing only those methods and properties that are defined in the spec.\r\n */\r\nvar ResizeObserver = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback that is invoked when\r\n * dimensions of the observed elements change.\r\n */\r\n function ResizeObserver(callback) {\r\n if (!(this instanceof ResizeObserver)) {\r\n throw new TypeError('Cannot call a class as a function.');\r\n }\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n var controller = ResizeObserverController.getInstance();\r\n var observer = new ResizeObserverSPI(callback, controller, this);\r\n observers.set(this, observer);\r\n }\r\n return ResizeObserver;\r\n}());\r\n// Expose public methods of ResizeObserver.\r\n[\r\n 'observe',\r\n 'unobserve',\r\n 'disconnect'\r\n].forEach(function (method) {\r\n ResizeObserver.prototype[method] = function () {\r\n var _a;\r\n return (_a = observers.get(this))[method].apply(_a, arguments);\r\n };\r\n});\n\nvar index = (function () {\r\n // Export existing implementation if available.\r\n if (typeof global$1.ResizeObserver !== 'undefined') {\r\n return global$1.ResizeObserver;\r\n }\r\n return ResizeObserver;\r\n})();\n\nexport default index;\n","/** @license React v0.20.2\n * scheduler.production.min.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict';var f,g,h,k;if(\"object\"===typeof performance&&\"function\"===typeof performance.now){var l=performance;exports.unstable_now=function(){return l.now()}}else{var p=Date,q=p.now();exports.unstable_now=function(){return p.now()-q}}\nif(\"undefined\"===typeof window||\"function\"!==typeof MessageChannel){var t=null,u=null,w=function(){if(null!==t)try{var a=exports.unstable_now();t(!0,a);t=null}catch(b){throw setTimeout(w,0),b;}};f=function(a){null!==t?setTimeout(f,0,a):(t=a,setTimeout(w,0))};g=function(a,b){u=setTimeout(a,b)};h=function(){clearTimeout(u)};exports.unstable_shouldYield=function(){return!1};k=exports.unstable_forceFrameRate=function(){}}else{var x=window.setTimeout,y=window.clearTimeout;if(\"undefined\"!==typeof console){var z=\nwindow.cancelAnimationFrame;\"function\"!==typeof window.requestAnimationFrame&&console.error(\"This browser doesn't support requestAnimationFrame. Make sure that you load a polyfill in older browsers. https://reactjs.org/link/react-polyfills\");\"function\"!==typeof z&&console.error(\"This browser doesn't support cancelAnimationFrame. Make sure that you load a polyfill in older browsers. https://reactjs.org/link/react-polyfills\")}var A=!1,B=null,C=-1,D=5,E=0;exports.unstable_shouldYield=function(){return exports.unstable_now()>=\nE};k=function(){};exports.unstable_forceFrameRate=function(a){0>a||125>>1,e=a[d];if(void 0!==e&&0I(n,c))void 0!==r&&0>I(r,n)?(a[d]=r,a[v]=c,d=v):(a[d]=n,a[m]=c,d=m);else if(void 0!==r&&0>I(r,c))a[d]=r,a[v]=c,d=v;else break a}}return b}return null}function I(a,b){var c=a.sortIndex-b.sortIndex;return 0!==c?c:a.id-b.id}var L=[],M=[],N=1,O=null,P=3,Q=!1,R=!1,S=!1;\nfunction T(a){for(var b=J(M);null!==b;){if(null===b.callback)K(M);else if(b.startTime<=a)K(M),b.sortIndex=b.expirationTime,H(L,b);else break;b=J(M)}}function U(a){S=!1;T(a);if(!R)if(null!==J(L))R=!0,f(V);else{var b=J(M);null!==b&&g(U,b.startTime-a)}}\nfunction V(a,b){R=!1;S&&(S=!1,h());Q=!0;var c=P;try{T(b);for(O=J(L);null!==O&&(!(O.expirationTime>b)||a&&!exports.unstable_shouldYield());){var d=O.callback;if(\"function\"===typeof d){O.callback=null;P=O.priorityLevel;var e=d(O.expirationTime<=b);b=exports.unstable_now();\"function\"===typeof e?O.callback=e:O===J(L)&&K(L);T(b)}else K(L);O=J(L)}if(null!==O)var m=!0;else{var n=J(M);null!==n&&g(U,n.startTime-b);m=!1}return m}finally{O=null,P=c,Q=!1}}var W=k;exports.unstable_IdlePriority=5;\nexports.unstable_ImmediatePriority=1;exports.unstable_LowPriority=4;exports.unstable_NormalPriority=3;exports.unstable_Profiling=null;exports.unstable_UserBlockingPriority=2;exports.unstable_cancelCallback=function(a){a.callback=null};exports.unstable_continueExecution=function(){R||Q||(R=!0,f(V))};exports.unstable_getCurrentPriorityLevel=function(){return P};exports.unstable_getFirstCallbackNode=function(){return J(L)};\nexports.unstable_next=function(a){switch(P){case 1:case 2:case 3:var b=3;break;default:b=P}var c=P;P=b;try{return a()}finally{P=c}};exports.unstable_pauseExecution=function(){};exports.unstable_requestPaint=W;exports.unstable_runWithPriority=function(a,b){switch(a){case 1:case 2:case 3:case 4:case 5:break;default:a=3}var c=P;P=a;try{return b()}finally{P=c}};\nexports.unstable_scheduleCallback=function(a,b,c){var d=exports.unstable_now();\"object\"===typeof c&&null!==c?(c=c.delay,c=\"number\"===typeof c&&0d?(a.sortIndex=c,H(M,a),null===J(L)&&a===J(M)&&(S?h():S=!0,g(U,c-d))):(a.sortIndex=e,H(L,a),R||Q||(R=!0,f(V)));return a};\nexports.unstable_wrapCallback=function(a){var b=P;return function(){var c=P;P=b;try{return a.apply(this,arguments)}finally{P=c}}};\n","'use strict';\n\nif (process.env.NODE_ENV === 'production') {\n module.exports = require('./cjs/scheduler.production.min.js');\n} else {\n module.exports = require('./cjs/scheduler.development.js');\n}\n","//\n\nmodule.exports = function shallowEqual(objA, objB, compare, compareContext) {\n var ret = compare ? compare.call(compareContext, objA, objB) : void 0;\n\n if (ret !== void 0) {\n return !!ret;\n }\n\n if (objA === objB) {\n return true;\n }\n\n if (typeof objA !== \"object\" || !objA || typeof objB !== \"object\" || !objB) {\n return false;\n }\n\n var keysA = Object.keys(objA);\n var keysB = Object.keys(objB);\n\n if (keysA.length !== keysB.length) {\n return false;\n }\n\n var bHasOwnProperty = Object.prototype.hasOwnProperty.bind(objB);\n\n // Test for A's keys different from B.\n for (var idx = 0; idx < keysA.length; idx++) {\n var key = keysA[idx];\n\n if (!bHasOwnProperty(key)) {\n return false;\n }\n\n var valueA = objA[key];\n var valueB = objB[key];\n\n ret = compare ? compare.call(compareContext, valueA, valueB, key) : void 0;\n\n if (ret === false || (ret === void 0 && valueA !== valueB)) {\n return false;\n }\n }\n\n return true;\n};\n","'use strict';\n\nvar Sister;\n\n/**\n* @link https://github.com/gajus/sister for the canonical source repository\n* @license https://github.com/gajus/sister/blob/master/LICENSE BSD 3-Clause\n*/\nSister = function () {\n var sister = {},\n events = {};\n\n /**\n * @name handler\n * @function\n * @param {Object} data Event data.\n */\n\n /**\n * @param {String} name Event name.\n * @param {handler} handler\n * @return {listener}\n */\n sister.on = function (name, handler) {\n var listener = {name: name, handler: handler};\n events[name] = events[name] || [];\n events[name].unshift(listener);\n return listener;\n };\n\n /**\n * @param {listener}\n */\n sister.off = function (listener) {\n var index = events[listener.name].indexOf(listener);\n\n if (index !== -1) {\n events[listener.name].splice(index, 1);\n }\n };\n\n /**\n * @param {String} name Event name.\n * @param {Object} data Event data.\n */\n sister.trigger = function (name, data) {\n var listeners = events[name],\n i;\n\n if (listeners) {\n i = listeners.length;\n while (i--) {\n listeners[i].handler(data);\n }\n }\n };\n\n return sister;\n};\n\nmodule.exports = Sister;\n","var camel2hyphen = function (str) {\n return str\n .replace(/[A-Z]/g, function (match) {\n return '-' + match.toLowerCase();\n })\n .toLowerCase();\n};\n\nmodule.exports = camel2hyphen;","!function(root, factory) {\n \"function\" == typeof define && define.amd ? // AMD. Register as an anonymous module unless amdModuleId is set\n define([], function() {\n return root.svg4everybody = factory();\n }) : \"object\" == typeof module && module.exports ? // Node. Does not work with strict CommonJS, but\n // only CommonJS-like environments that support module.exports,\n // like Node.\n module.exports = factory() : root.svg4everybody = factory();\n}(this, function() {\n /*! svg4everybody v2.1.9 | github.com/jonathantneal/svg4everybody */\n function embed(parent, svg, target) {\n // if the target exists\n if (target) {\n // create a document fragment to hold the contents of the target\n var fragment = document.createDocumentFragment(), viewBox = !svg.hasAttribute(\"viewBox\") && target.getAttribute(\"viewBox\");\n // conditionally set the viewBox on the svg\n viewBox && svg.setAttribute(\"viewBox\", viewBox);\n // copy the contents of the clone into the fragment\n for (// clone the target\n var clone = target.cloneNode(!0); clone.childNodes.length; ) {\n fragment.appendChild(clone.firstChild);\n }\n // append the fragment into the svg\n parent.appendChild(fragment);\n }\n }\n function loadreadystatechange(xhr) {\n // listen to changes in the request\n xhr.onreadystatechange = function() {\n // if the request is ready\n if (4 === xhr.readyState) {\n // get the cached html document\n var cachedDocument = xhr._cachedDocument;\n // ensure the cached html document based on the xhr response\n cachedDocument || (cachedDocument = xhr._cachedDocument = document.implementation.createHTMLDocument(\"\"), \n cachedDocument.body.innerHTML = xhr.responseText, xhr._cachedTarget = {}), // clear the xhr embeds list and embed each item\n xhr._embeds.splice(0).map(function(item) {\n // get the cached target\n var target = xhr._cachedTarget[item.id];\n // ensure the cached target\n target || (target = xhr._cachedTarget[item.id] = cachedDocument.getElementById(item.id)), \n // embed the target into the svg\n embed(item.parent, item.svg, target);\n });\n }\n }, // test the ready state change immediately\n xhr.onreadystatechange();\n }\n function svg4everybody(rawopts) {\n function oninterval() {\n // while the index exists in the live