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rOACCT/node_modules/@mui/base/modern/AutocompleteUnstyled/useAutocomplete.js
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useAutocomplete.js
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			import _extends from "@babel/runtime/helpers/esm/extends";
			/* eslint-disable no-constant-condition */
			import * as React from 'react';
			import { unstable_setRef as setRef, unstable_useEventCallback as useEventCallback, unstable_useControlled as useControlled, unstable_useId as useId } from '@mui/utils';

			// https://stackoverflow.com/questions/990904/remove-accents-diacritics-in-a-string-in-javascript
			// Give up on IE11 support for this feature
			function stripDiacritics(string) {
			return typeof string.normalize !== 'undefined' ? string.normalize('NFD').replace(/[\u0300-\u036f]/g, '') : string;
			}
			export function createFilterOptions(config = {}) {
			const {
			ignoreAccents = true,
			ignoreCase = true,
			limit,
			matchFrom = 'any',
			stringify,
			trim = false
			} = config;
			return (options, {
			inputValue,
			getOptionLabel
			}) => {
			let input = trim ? inputValue.trim() : inputValue;
			if (ignoreCase) {
			input = input.toLowerCase();
			}
			if (ignoreAccents) {
			input = stripDiacritics(input);
			}
			const filteredOptions = !input ? options : options.filter(option => {
			let candidate = (stringify \|\| getOptionLabel)(option);
			if (ignoreCase) {
			candidate = candidate.toLowerCase();
			}
			if (ignoreAccents) {
			candidate = stripDiacritics(candidate);
			}
			return matchFrom === 'start' ? candidate.indexOf(input) === 0 : candidate.indexOf(input) > -1;
			});
			return typeof limit === 'number' ? filteredOptions.slice(0, limit) : filteredOptions;
			};
			}

			// To replace with .findIndex() once we stop IE11 support.
			function findIndex(array, comp) {
			for (let i = 0; i < array.length; i += 1) {
			if (comp(array[i])) {
			return i;
			}
			}
			return -1;
			}
			const defaultFilterOptions = createFilterOptions();

			// Number of options to jump in list box when pageup and pagedown keys are used.
			const pageSize = 5;
			const defaultIsActiveElementInListbox = listboxRef => listboxRef.current !== null && listboxRef.current.parentElement?.contains(document.activeElement);
			export default function useAutocomplete(props) {
			const {
			// eslint-disable-next-line @typescript-eslint/naming-convention
			unstable_isActiveElementInListbox = defaultIsActiveElementInListbox,
			// eslint-disable-next-line @typescript-eslint/naming-convention
			unstable_classNamePrefix = 'Mui',
			autoComplete = false,
			autoHighlight = false,
			autoSelect = false,
			blurOnSelect = false,
			clearOnBlur = !props.freeSolo,
			clearOnEscape = false,
			componentName = 'useAutocomplete',
			defaultValue = props.multiple ? [] : null,
			disableClearable = false,
			disableCloseOnSelect = false,
			disabled: disabledProp,
			disabledItemsFocusable = false,
			disableListWrap = false,
			filterOptions = defaultFilterOptions,
			filterSelectedOptions = false,
			freeSolo = false,
			getOptionDisabled,
			getOptionLabel: getOptionLabelProp = option => option.label ?? option,
			groupBy,
			handleHomeEndKeys = !props.freeSolo,
			id: idProp,
			includeInputInList = false,
			inputValue: inputValueProp,
			isOptionEqualToValue = (option, value) => option === value,
			multiple = false,
			onChange,
			onClose,
			onHighlightChange,
			onInputChange,
			onOpen,
			open: openProp,
			openOnFocus = false,
			options,
			readOnly = false,
			selectOnFocus = !props.freeSolo,
			value: valueProp
			} = props;
			const id = useId(idProp);
			let getOptionLabel = getOptionLabelProp;
			getOptionLabel = option => {
			const optionLabel = getOptionLabelProp(option);
			if (typeof optionLabel !== 'string') {
			if (process.env.NODE_ENV !== 'production') {
			const erroneousReturn = optionLabel === undefined ? 'undefined' : `${typeof optionLabel} (${optionLabel})`;
			console.error(`MUI: The \`getOptionLabel\` method of ${componentName} returned ${erroneousReturn} instead of a string for ${JSON.stringify(option)}.`);
			}
			return String(optionLabel);
			}
			return optionLabel;
			};
			const ignoreFocus = React.useRef(false);
			const firstFocus = React.useRef(true);
			const inputRef = React.useRef(null);
			const listboxRef = React.useRef(null);
			const [anchorEl, setAnchorEl] = React.useState(null);
			const [focusedTag, setFocusedTag] = React.useState(-1);
			const defaultHighlighted = autoHighlight ? 0 : -1;
			const highlightedIndexRef = React.useRef(defaultHighlighted);
			const [value, setValueState] = useControlled({
			controlled: valueProp,
			default: defaultValue,
			name: componentName
			});
			const [inputValue, setInputValueState] = useControlled({
			controlled: inputValueProp,
			default: '',
			name: componentName,
			state: 'inputValue'
			});
			const [focused, setFocused] = React.useState(false);
			const resetInputValue = React.useCallback((event, newValue) => {
			// retain current `inputValue` if new option isn't selected and `clearOnBlur` is false
			// When `multiple` is enabled, `newValue` is an array of all selected items including the newly selected item
			const isOptionSelected = multiple ? value.length < newValue.length : newValue !== null;
			if (!isOptionSelected && !clearOnBlur) {
			return;
			}
			let newInputValue;
			if (multiple) {
			newInputValue = '';
			} else if (newValue == null) {
			newInputValue = '';
			} else {
			const optionLabel = getOptionLabel(newValue);
			newInputValue = typeof optionLabel === 'string' ? optionLabel : '';
			}
			if (inputValue === newInputValue) {
			return;
			}
			setInputValueState(newInputValue);
			if (onInputChange) {
			onInputChange(event, newInputValue, 'reset');
			}
			}, [getOptionLabel, inputValue, multiple, onInputChange, setInputValueState, clearOnBlur, value]);
			const prevValue = React.useRef();
			React.useEffect(() => {
			const valueChange = value !== prevValue.current;
			prevValue.current = value;
			if (focused && !valueChange) {
			return;
			}

			// Only reset the input's value when freeSolo if the component's value changes.
			if (freeSolo && !valueChange) {
			return;
			}
			resetInputValue(null, value);
			}, [value, resetInputValue, focused, prevValue, freeSolo]);
			const [open, setOpenState] = useControlled({
			controlled: openProp,
			default: false,
			name: componentName,
			state: 'open'
			});
			const [inputPristine, setInputPristine] = React.useState(true);
			const inputValueIsSelectedValue = !multiple && value != null && inputValue === getOptionLabel(value);
			const popupOpen = open && !readOnly;
			const filteredOptions = popupOpen ? filterOptions(options.filter(option => {
			if (filterSelectedOptions && (multiple ? value : [value]).some(value2 => value2 !== null && isOptionEqualToValue(option, value2))) {
			return false;
			}
			return true;
			}),
			// we use the empty string to manipulate `filterOptions` to not filter any options
			// i.e. the filter predicate always returns true
			{
			inputValue: inputValueIsSelectedValue && inputPristine ? '' : inputValue,
			getOptionLabel
			}) : [];
			const listboxAvailable = open && filteredOptions.length > 0 && !readOnly;
			if (process.env.NODE_ENV !== 'production') {
			if (value !== null && !freeSolo && options.length > 0) {
			const missingValue = (multiple ? value : [value]).filter(value2 => !options.some(option => isOptionEqualToValue(option, value2)));
			if (missingValue.length > 0) {
			console.warn([`MUI: The value provided to ${componentName} is invalid.`, `None of the options match with \`${missingValue.length > 1 ? JSON.stringify(missingValue) : JSON.stringify(missingValue[0])}\`.`, 'You can use the `isOptionEqualToValue` prop to customize the equality test.'].join('\n'));
			}
			}
			}
			const focusTag = useEventCallback(tagToFocus => {
			if (tagToFocus === -1) {
			inputRef.current.focus();
			} else {
			anchorEl.querySelector(`[data-tag-index="${tagToFocus}"]`).focus();
			}
			});

			// Ensure the focusedTag is never inconsistent
			React.useEffect(() => {
			if (multiple && focusedTag > value.length - 1) {
			setFocusedTag(-1);
			focusTag(-1);
			}
			}, [value, multiple, focusedTag, focusTag]);
			function validOptionIndex(index, direction) {
			if (!listboxRef.current \|\| index === -1) {
			return -1;
			}
			let nextFocus = index;
			while (true) {
			// Out of range
			if (direction === 'next' && nextFocus === filteredOptions.length \|\| direction === 'previous' && nextFocus === -1) {
			return -1;
			}
			const option = listboxRef.current.querySelector(`[data-option-index="${nextFocus}"]`);

			// Same logic as MenuList.js
			const nextFocusDisabled = disabledItemsFocusable ? false : !option \|\| option.disabled \|\| option.getAttribute('aria-disabled') === 'true';
			if (option && !option.hasAttribute('tabindex') \|\| nextFocusDisabled) {
			// Move to the next element.
			nextFocus += direction === 'next' ? 1 : -1;
			} else {
			return nextFocus;
			}
			}
			}
			const setHighlightedIndex = useEventCallback(({
			event,
			index,
			reason = 'auto'
			}) => {
			highlightedIndexRef.current = index;

			// does the index exist?
			if (index === -1) {
			inputRef.current.removeAttribute('aria-activedescendant');
			} else {
			inputRef.current.setAttribute('aria-activedescendant', `${id}-option-${index}`);
			}
			if (onHighlightChange) {
			onHighlightChange(event, index === -1 ? null : filteredOptions[index], reason);
			}
			if (!listboxRef.current) {
			return;
			}
			const prev = listboxRef.current.querySelector(`[role="option"].${unstable_classNamePrefix}-focused`);
			if (prev) {
			prev.classList.remove(`${unstable_classNamePrefix}-focused`);
			prev.classList.remove(`${unstable_classNamePrefix}-focusVisible`);
			}
			const listboxNode = listboxRef.current.parentElement.querySelector('[role="listbox"]');

			// "No results"
			if (!listboxNode) {
			return;
			}
			if (index === -1) {
			listboxNode.scrollTop = 0;
			return;
			}
			const option = listboxRef.current.querySelector(`[data-option-index="${index}"]`);
			if (!option) {
			return;
			}
			option.classList.add(`${unstable_classNamePrefix}-focused`);
			if (reason === 'keyboard') {
			option.classList.add(`${unstable_classNamePrefix}-focusVisible`);
			}

			// Scroll active descendant into view.
			// Logic copied from https://www.w3.org/WAI/ARIA/apg/example-index/combobox/js/select-only.js
			//
			// Consider this API instead once it has a better browser support:
			// .scrollIntoView({ scrollMode: 'if-needed', block: 'nearest' });
			if (listboxNode.scrollHeight > listboxNode.clientHeight && reason !== 'mouse') {
			const element = option;
			const scrollBottom = listboxNode.clientHeight + listboxNode.scrollTop;
			const elementBottom = element.offsetTop + element.offsetHeight;
			if (elementBottom > scrollBottom) {
			listboxNode.scrollTop = elementBottom - listboxNode.clientHeight;
			} else if (element.offsetTop - element.offsetHeight * (groupBy ? 1.3 : 0) < listboxNode.scrollTop) {
			listboxNode.scrollTop = element.offsetTop - element.offsetHeight * (groupBy ? 1.3 : 0);
			}
			}
			});
			const changeHighlightedIndex = useEventCallback(({
			event,
			diff,
			direction = 'next',
			reason = 'auto'
			}) => {
			if (!popupOpen) {
			return;
			}
			const getNextIndex = () => {
			const maxIndex = filteredOptions.length - 1;
			if (diff === 'reset') {
			return defaultHighlighted;
			}
			if (diff === 'start') {
			return 0;
			}
			if (diff === 'end') {
			return maxIndex;
			}
			const newIndex = highlightedIndexRef.current + diff;
			if (newIndex < 0) {
			if (newIndex === -1 && includeInputInList) {
			return -1;
			}
			if (disableListWrap && highlightedIndexRef.current !== -1 \|\| Math.abs(diff) > 1) {
			return 0;
			}
			return maxIndex;
			}
			if (newIndex > maxIndex) {
			if (newIndex === maxIndex + 1 && includeInputInList) {
			return -1;
			}
			if (disableListWrap \|\| Math.abs(diff) > 1) {
			return maxIndex;
			}
			return 0;
			}
			return newIndex;
			};
			const nextIndex = validOptionIndex(getNextIndex(), direction);
			setHighlightedIndex({
			index: nextIndex,
			reason,
			event
			});

			// Sync the content of the input with the highlighted option.
			if (autoComplete && diff !== 'reset') {
			if (nextIndex === -1) {
			inputRef.current.value = inputValue;
			} else {
			const option = getOptionLabel(filteredOptions[nextIndex]);
			inputRef.current.value = option;

			// The portion of the selected suggestion that has not been typed by the user,
			// a completion string, appears inline after the input cursor in the textbox.
			const index = option.toLowerCase().indexOf(inputValue.toLowerCase());
			if (index === 0 && inputValue.length > 0) {
			inputRef.current.setSelectionRange(inputValue.length, option.length);
			}
			}
			}
			});
			const syncHighlightedIndex = React.useCallback(() => {
			if (!popupOpen) {
			return;
			}
			const valueItem = multiple ? value[0] : value;

			// The popup is empty, reset
			if (filteredOptions.length === 0 \|\| valueItem == null) {
			changeHighlightedIndex({
			diff: 'reset'
			});
			return;
			}
			if (!listboxRef.current) {
			return;
			}

			// Synchronize the value with the highlighted index
			if (valueItem != null) {
			const currentOption = filteredOptions[highlightedIndexRef.current];

			// Keep the current highlighted index if possible
			if (multiple && currentOption && findIndex(value, val => isOptionEqualToValue(currentOption, val)) !== -1) {
			return;
			}
			const itemIndex = findIndex(filteredOptions, optionItem => isOptionEqualToValue(optionItem, valueItem));
			if (itemIndex === -1) {
			changeHighlightedIndex({
			diff: 'reset'
			});
			} else {
			setHighlightedIndex({
			index: itemIndex
			});
			}
			return;
			}

			// Prevent the highlighted index to leak outside the boundaries.
			if (highlightedIndexRef.current >= filteredOptions.length - 1) {
			setHighlightedIndex({
			index: filteredOptions.length - 1
			});
			return;
			}

			// Restore the focus to the previous index.
			setHighlightedIndex({
			index: highlightedIndexRef.current
			});
			// Ignore filteredOptions (and options, isOptionEqualToValue, getOptionLabel) not to break the scroll position
			// eslint-disable-next-line react-hooks/exhaustive-deps
			}, [
			// Only sync the highlighted index when the option switch between empty and not
			filteredOptions.length,
			// Don't sync the highlighted index with the value when multiple
			// eslint-disable-next-line react-hooks/exhaustive-deps
			multiple ? false : value, filterSelectedOptions, changeHighlightedIndex, setHighlightedIndex, popupOpen, inputValue, multiple]);
			const handleListboxRef = useEventCallback(node => {
			setRef(listboxRef, node);
			if (!node) {
			return;
			}
			syncHighlightedIndex();
			});
			if (process.env.NODE_ENV !== 'production') {
			// eslint-disable-next-line react-hooks/rules-of-hooks
			React.useEffect(() => {
			if (!inputRef.current \|\| inputRef.current.nodeName !== 'INPUT') {
			if (inputRef.current && inputRef.current.nodeName === 'TEXTAREA') {
			console.warn([`A textarea element was provided to ${componentName} where input was expected.`, `This is not a supported scenario but it may work under certain conditions.`, `A textarea keyboard navigation may conflict with Autocomplete controls (e.g. enter and arrow keys).`, `Make sure to test keyboard navigation and add custom event handlers if necessary.`].join('\n'));
			} else {
			console.error([`MUI: Unable to find the input element. It was resolved to ${inputRef.current} while an HTMLInputElement was expected.`, `Instead, ${componentName} expects an input element.`, '', componentName === 'useAutocomplete' ? 'Make sure you have binded getInputProps correctly and that the normal ref/effect resolutions order is guaranteed.' : 'Make sure you have customized the input component correctly.'].join('\n'));
			}
			}
			}, [componentName]);
			}
			React.useEffect(() => {
			syncHighlightedIndex();
			}, [syncHighlightedIndex]);
			const handleOpen = event => {
			if (open) {
			return;
			}
			setOpenState(true);
			setInputPristine(true);
			if (onOpen) {
			onOpen(event);
			}
			};
			const handleClose = (event, reason) => {
			if (!open) {
			return;
			}
			setOpenState(false);
			if (onClose) {
			onClose(event, reason);
			}
			};
			const handleValue = (event, newValue, reason, details) => {
			if (multiple) {
			if (value.length === newValue.length && value.every((val, i) => val === newValue[i])) {
			return;
			}
			} else if (value === newValue) {
			return;
			}
			if (onChange) {
			onChange(event, newValue, reason, details);
			}
			setValueState(newValue);
			};
			const isTouch = React.useRef(false);
			const selectNewValue = (event, option, reasonProp = 'selectOption', origin = 'options') => {
			let reason = reasonProp;
			let newValue = option;
			if (multiple) {
			newValue = Array.isArray(value) ? value.slice() : [];
			if (process.env.NODE_ENV !== 'production') {
			const matches = newValue.filter(val => isOptionEqualToValue(option, val));
			if (matches.length > 1) {
			console.error([`MUI: The \`isOptionEqualToValue\` method of ${componentName} do not handle the arguments correctly.`, `The component expects a single value to match a given option but found ${matches.length} matches.`].join('\n'));
			}
			}
			const itemIndex = findIndex(newValue, valueItem => isOptionEqualToValue(option, valueItem));
			if (itemIndex === -1) {
			newValue.push(option);
			} else if (origin !== 'freeSolo') {
			newValue.splice(itemIndex, 1);
			reason = 'removeOption';
			}
			}
			resetInputValue(event, newValue);
			handleValue(event, newValue, reason, {
			option
			});
			if (!disableCloseOnSelect && (!event \|\| !event.ctrlKey && !event.metaKey)) {
			handleClose(event, reason);
			}
			if (blurOnSelect === true \|\| blurOnSelect === 'touch' && isTouch.current \|\| blurOnSelect === 'mouse' && !isTouch.current) {
			inputRef.current.blur();
			}
			};
			function validTagIndex(index, direction) {
			if (index === -1) {
			return -1;
			}
			let nextFocus = index;
			while (true) {
			// Out of range
			if (direction === 'next' && nextFocus === value.length \|\| direction === 'previous' && nextFocus === -1) {
			return -1;
			}
			const option = anchorEl.querySelector(`[data-tag-index="${nextFocus}"]`);

			// Same logic as MenuList.js
			if (!option \|\| !option.hasAttribute('tabindex') \|\| option.disabled \|\| option.getAttribute('aria-disabled') === 'true') {
			nextFocus += direction === 'next' ? 1 : -1;
			} else {
			return nextFocus;
			}
			}
			}
			const handleFocusTag = (event, direction) => {
			if (!multiple) {
			return;
			}
			if (inputValue === '') {
			handleClose(event, 'toggleInput');
			}
			let nextTag = focusedTag;
			if (focusedTag === -1) {
			if (inputValue === '' && direction === 'previous') {
			nextTag = value.length - 1;
			}
			} else {
			nextTag += direction === 'next' ? 1 : -1;
			if (nextTag < 0) {
			nextTag = 0;
			}
			if (nextTag === value.length) {
			nextTag = -1;
			}
			}
			nextTag = validTagIndex(nextTag, direction);
			setFocusedTag(nextTag);
			focusTag(nextTag);
			};
			const handleClear = event => {
			ignoreFocus.current = true;
			setInputValueState('');
			if (onInputChange) {
			onInputChange(event, '', 'clear');
			}
			handleValue(event, multiple ? [] : null, 'clear');
			};
			const handleKeyDown = other => event => {
			if (other.onKeyDown) {
			other.onKeyDown(event);
			}
			if (event.defaultMuiPrevented) {
			return;
			}
			if (focusedTag !== -1 && ['ArrowLeft', 'ArrowRight'].indexOf(event.key) === -1) {
			setFocusedTag(-1);
			focusTag(-1);
			}

			// Wait until IME is settled.
			if (event.which !== 229) {
			switch (event.key) {
			case 'Home':
			if (popupOpen && handleHomeEndKeys) {
			// Prevent scroll of the page
			event.preventDefault();
			changeHighlightedIndex({
			diff: 'start',
			direction: 'next',
			reason: 'keyboard',
			event
			});
			}
			break;
			case 'End':
			if (popupOpen && handleHomeEndKeys) {
			// Prevent scroll of the page
			event.preventDefault();
			changeHighlightedIndex({
			diff: 'end',
			direction: 'previous',
			reason: 'keyboard',
			event
			});
			}
			break;
			case 'PageUp':
			// Prevent scroll of the page
			event.preventDefault();
			changeHighlightedIndex({
			diff: -pageSize,
			direction: 'previous',
			reason: 'keyboard',
			event
			});
			handleOpen(event);
			break;
			case 'PageDown':
			// Prevent scroll of the page
			event.preventDefault();
			changeHighlightedIndex({
			diff: pageSize,
			direction: 'next',
			reason: 'keyboard',
			event
			});
			handleOpen(event);
			break;
			case 'ArrowDown':
			// Prevent cursor move
			event.preventDefault();
			changeHighlightedIndex({
			diff: 1,
			direction: 'next',
			reason: 'keyboard',
			event
			});
			handleOpen(event);
			break;
			case 'ArrowUp':
			// Prevent cursor move
			event.preventDefault();
			changeHighlightedIndex({
			diff: -1,
			direction: 'previous',
			reason: 'keyboard',
			event
			});
			handleOpen(event);
			break;
			case 'ArrowLeft':
			handleFocusTag(event, 'previous');
			break;
			case 'ArrowRight':
			handleFocusTag(event, 'next');
			break;
			case 'Enter':
			if (highlightedIndexRef.current !== -1 && popupOpen) {
			const option = filteredOptions[highlightedIndexRef.current];
			const disabled = getOptionDisabled ? getOptionDisabled(option) : false;

			// Avoid early form validation, let the end-users continue filling the form.
			event.preventDefault();
			if (disabled) {
			return;
			}
			selectNewValue(event, option, 'selectOption');

			// Move the selection to the end.
			if (autoComplete) {
			inputRef.current.setSelectionRange(inputRef.current.value.length, inputRef.current.value.length);
			}
			} else if (freeSolo && inputValue !== '' && inputValueIsSelectedValue === false) {
			if (multiple) {
			// Allow people to add new values before they submit the form.
			event.preventDefault();
			}
			selectNewValue(event, inputValue, 'createOption', 'freeSolo');
			}
			break;
			case 'Escape':
			if (popupOpen) {
			// Avoid Opera to exit fullscreen mode.
			event.preventDefault();
			// Avoid the Modal to handle the event.
			event.stopPropagation();
			handleClose(event, 'escape');
			} else if (clearOnEscape && (inputValue !== '' \|\| multiple && value.length > 0)) {
			// Avoid Opera to exit fullscreen mode.
			event.preventDefault();
			// Avoid the Modal to handle the event.
			event.stopPropagation();
			handleClear(event);
			}
			break;
			case 'Backspace':
			if (multiple && !readOnly && inputValue === '' && value.length > 0) {
			const index = focusedTag === -1 ? value.length - 1 : focusedTag;
			const newValue = value.slice();
			newValue.splice(index, 1);
			handleValue(event, newValue, 'removeOption', {
			option: value[index]
			});
			}
			break;
			case 'Delete':
			if (multiple && !readOnly && inputValue === '' && value.length > 0 && focusedTag !== -1) {
			const index = focusedTag;
			const newValue = value.slice();
			newValue.splice(index, 1);
			handleValue(event, newValue, 'removeOption', {
			option: value[index]
			});
			}
			break;
			default:
			}
			}
			};
			const handleFocus = event => {
			setFocused(true);
			if (openOnFocus && !ignoreFocus.current) {
			handleOpen(event);
			}
			};
			const handleBlur = event => {
			// Ignore the event when using the scrollbar with IE11
			if (unstable_isActiveElementInListbox(listboxRef)) {
			inputRef.current.focus();
			return;
			}
			setFocused(false);
			firstFocus.current = true;
			ignoreFocus.current = false;
			if (autoSelect && highlightedIndexRef.current !== -1 && popupOpen) {
			selectNewValue(event, filteredOptions[highlightedIndexRef.current], 'blur');
			} else if (autoSelect && freeSolo && inputValue !== '') {
			selectNewValue(event, inputValue, 'blur', 'freeSolo');
			} else if (clearOnBlur) {
			resetInputValue(event, value);
			}
			handleClose(event, 'blur');
			};
			const handleInputChange = event => {
			const newValue = event.target.value;
			if (inputValue !== newValue) {
			setInputValueState(newValue);
			setInputPristine(false);
			if (onInputChange) {
			onInputChange(event, newValue, 'input');
			}
			}
			if (newValue === '') {
			if (!disableClearable && !multiple) {
			handleValue(event, null, 'clear');
			}
			} else {
			handleOpen(event);
			}
			};
			const handleOptionMouseOver = event => {
			setHighlightedIndex({
			event,
			index: Number(event.currentTarget.getAttribute('data-option-index')),
			reason: 'mouse'
			});
			};
			const handleOptionTouchStart = () => {
			isTouch.current = true;
			};
			const handleOptionClick = event => {
			const index = Number(event.currentTarget.getAttribute('data-option-index'));
			selectNewValue(event, filteredOptions[index], 'selectOption');
			isTouch.current = false;
			};
			const handleTagDelete = index => event => {
			const newValue = value.slice();
			newValue.splice(index, 1);
			handleValue(event, newValue, 'removeOption', {
			option: value[index]
			});
			};
			const handlePopupIndicator = event => {
			if (open) {
			handleClose(event, 'toggleInput');
			} else {
			handleOpen(event);
			}
			};

			// Prevent input blur when interacting with the combobox
			const handleMouseDown = event => {
			if (event.target.getAttribute('id') !== id) {
			event.preventDefault();
			}
			};

			// Focus the input when interacting with the combobox
			const handleClick = () => {
			inputRef.current.focus();
			if (selectOnFocus && firstFocus.current && inputRef.current.selectionEnd - inputRef.current.selectionStart === 0) {
			inputRef.current.select();
			}
			firstFocus.current = false;
			};
			const handleInputMouseDown = event => {
			if (inputValue === '' \|\| !open) {
			handlePopupIndicator(event);
			}
			};
			let dirty = freeSolo && inputValue.length > 0;
			dirty = dirty \|\| (multiple ? value.length > 0 : value !== null);
			let groupedOptions = filteredOptions;
			if (groupBy) {
			// used to keep track of key and indexes in the result array
			const indexBy = new Map();
			let warn = false;
			groupedOptions = filteredOptions.reduce((acc, option, index) => {
			const group = groupBy(option);
			if (acc.length > 0 && acc[acc.length - 1].group === group) {
			acc[acc.length - 1].options.push(option);
			} else {
			if (process.env.NODE_ENV !== 'production') {
			if (indexBy.get(group) && !warn) {
			console.warn(`MUI: The options provided combined with the \`groupBy\` method of ${componentName} returns duplicated headers.`, 'You can solve the issue by sorting the options with the output of `groupBy`.');
			warn = true;
			}
			indexBy.set(group, true);
			}
			acc.push({
			key: index,
			index,
			group,
			options: [option]
			});
			}
			return acc;
			}, []);
			}
			if (disabledProp && focused) {
			handleBlur();
			}
			return {
			getRootProps: (other = {}) => _extends({
			'aria-owns': listboxAvailable ? `${id}-listbox` : null
			}, other, {
			onKeyDown: handleKeyDown(other),
			onMouseDown: handleMouseDown,
			onClick: handleClick
			}),
			getInputLabelProps: () => ({
			id: `${id}-label`,
			htmlFor: id
			}),
			getInputProps: () => ({
			id,
			value: inputValue,
			onBlur: handleBlur,
			onFocus: handleFocus,
			onChange: handleInputChange,
			onMouseDown: handleInputMouseDown,
			// if open then this is handled imperativeley so don't let react override
			// only have an opinion about this when closed
			'aria-activedescendant': popupOpen ? '' : null,
			'aria-autocomplete': autoComplete ? 'both' : 'list',
			'aria-controls': listboxAvailable ? `${id}-listbox` : undefined,
			'aria-expanded': listboxAvailable,
			// Disable browser's suggestion that might overlap with the popup.
			// Handle autocomplete but not autofill.
			autoComplete: 'off',
			ref: inputRef,
			autoCapitalize: 'none',
			spellCheck: 'false',
			role: 'combobox'
			}),
			getClearProps: () => ({
			tabIndex: -1,
			onClick: handleClear
			}),
			getPopupIndicatorProps: () => ({
			tabIndex: -1,
			onClick: handlePopupIndicator
			}),
			getTagProps: ({
			index
			}) => _extends({
			key: index,
			'data-tag-index': index,
			tabIndex: -1
			}, !readOnly && {
			onDelete: handleTagDelete(index)
			}),
			getListboxProps: () => ({
			role: 'listbox',
			id: `${id}-listbox`,
			'aria-labelledby': `${id}-label`,
			ref: handleListboxRef,
			onMouseDown: event => {
			// Prevent blur
			event.preventDefault();
			}
			}),
			getOptionProps: ({
			index,
			option
			}) => {
			const selected = (multiple ? value : [value]).some(value2 => value2 != null && isOptionEqualToValue(option, value2));
			const disabled = getOptionDisabled ? getOptionDisabled(option) : false;
			return {
			key: getOptionLabel(option),
			tabIndex: -1,
			role: 'option',
			id: `${id}-option-${index}`,
			onMouseOver: handleOptionMouseOver,
			onClick: handleOptionClick,
			onTouchStart: handleOptionTouchStart,
			'data-option-index': index,
			'aria-disabled': disabled,
			'aria-selected': selected
			};
			},
			id,
			inputValue,
			value,
			dirty,
			popupOpen,
			focused: focused \|\| focusedTag !== -1,
			anchorEl,
			setAnchorEl,
			focusedTag,
			groupedOptions
			};
			}