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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,250 @@ | ||
| import { | ||
| Button, | ||
| MenuToggle, | ||
| MenuToggleElement, | ||
| Select, | ||
| SelectList, | ||
| SelectOption, | ||
| SelectOptionProps, | ||
| TextInputGroup, | ||
| TextInputGroupMain, | ||
| TextInputGroupUtilities, | ||
| } from '@patternfly/react-core'; | ||
| import TimesIcon from '@patternfly/react-icons/dist/esm/icons/times-icon'; | ||
| import React, { FunctionComponent, useEffect, useMemo, useRef, useState } from 'react'; | ||
| import { IDataTestID } from '../../models'; | ||
|
|
||
| export interface TypeaheadOptions extends IDataTestID { | ||
| value: string; | ||
| description?: string; | ||
| className?: string; | ||
| isDisabled?: boolean; | ||
| isSelected?: boolean; | ||
| } | ||
|
|
||
| interface TypeaheadProps extends IDataTestID { | ||
| value?: string; | ||
| options: Array<TypeaheadOptions>; | ||
| onChange?: (value: string) => void; | ||
| canCreateNewOption?: boolean; | ||
| } | ||
|
|
||
| export const Typeahead: FunctionComponent<TypeaheadProps> = ({ | ||
| value, | ||
| options = [], | ||
| onChange, | ||
| canCreateNewOption = false, | ||
| 'data-testid': dataTestId = 'typeahead', | ||
| }) => { | ||
| const selectedReference = value ?? ''; | ||
|
|
||
| const listOptions: TypeaheadOptions[] = useMemo(() => { | ||
| const localOptions: TypeaheadOptions[] = []; | ||
| const hasSelectedReference = options.some((option) => option.value === selectedReference); | ||
|
|
||
| if (!hasSelectedReference && selectedReference !== '') { | ||
| const newOption: TypeaheadOptions = { | ||
| value: selectedReference, | ||
| isSelected: true, | ||
| }; | ||
| localOptions.push(newOption); | ||
| } | ||
|
|
||
| return localOptions.concat(options); | ||
| }, [options, selectedReference]); | ||
|
|
||
| const [isOpen, setIsOpen] = useState(false); | ||
| const [selected, setSelected] = useState<string>(''); | ||
| const [inputValue, setInputValue] = useState<string>(selectedReference); | ||
| const [filterValue, setFilterValue] = useState<string>(''); | ||
| const [selectOptions, setSelectOptions] = useState<SelectOptionProps[]>(listOptions); | ||
| const [focusedItemIndex, setFocusedItemIndex] = useState<number | null>(null); | ||
| const [activeItem, setActiveItem] = useState<string | null>(null); | ||
| const [onCreation, setOnCreation] = useState<boolean>(false); // Boolean to refresh filter state after new option is created | ||
| const textInputRef = useRef<HTMLInputElement>(); | ||
|
|
||
| useEffect(() => { | ||
| let newSelectOptions: SelectOptionProps[] = [...listOptions]; | ||
| const lowerCaseFilterValue = filterValue.toLowerCase(); | ||
|
|
||
| // Filter menu items based on the text input value when one exists | ||
| if (filterValue) { | ||
| newSelectOptions = listOptions.filter( | ||
| (menuItem) => | ||
| menuItem.value.toLocaleLowerCase().includes(lowerCaseFilterValue) || | ||
| menuItem.description?.toLocaleLowerCase().includes(lowerCaseFilterValue), | ||
| ); | ||
|
|
||
| // When no options are found after filtering, display creation option | ||
| if (canCreateNewOption && !newSelectOptions.length) { | ||
| newSelectOptions = [{ isDisabled: false, children: `Insert custom value "${filterValue}"`, value: 'create' }]; | ||
| } | ||
|
|
||
| // Open the menu when the input value changes and the new value is not empty | ||
| if (!isOpen) { | ||
| setIsOpen(true); | ||
| } | ||
| } | ||
| setSelectOptions(newSelectOptions); | ||
| setActiveItem(null); | ||
| setFocusedItemIndex(null); | ||
| }, [canCreateNewOption, filterValue, isOpen, listOptions]); | ||
|
|
||
| const onToggleClick = () => { | ||
| setIsOpen(!isOpen); | ||
| }; | ||
|
|
||
| const onSelect = (_event: unknown, value: string | number | undefined) => { | ||
| // if (value === 'create') { | ||
| // if (!listOptions.some((item) => item.value === filterValue)) { | ||
| // listOptions = [...listOptions, { value: filterValue }]; | ||
| // } | ||
| // setSelected(filterValue); | ||
| // setOnCreation(!onCreation); | ||
| // onChange?.(filterValue); | ||
| // setFilterValue(''); | ||
| // } else { | ||
| setInputValue(value as string); | ||
| setFilterValue(''); | ||
| setSelected(value as string); | ||
| onChange?.(value as string); | ||
| // } | ||
| setIsOpen(false); | ||
| setFocusedItemIndex(null); | ||
| setActiveItem(null); | ||
| }; | ||
|
|
||
| const onTextInputChange = (_event: unknown, value: string) => { | ||
| setInputValue(value); | ||
| setFilterValue(value); | ||
| }; | ||
| const handleMenuArrowKeys = (key: string) => { | ||
| let indexToFocus; | ||
|
|
||
| if (isOpen) { | ||
| if (key === 'ArrowUp') { | ||
| // When no index is set or at the first index, focus to the last, otherwise decrement focus index | ||
| if (focusedItemIndex === null || focusedItemIndex === 0) { | ||
| indexToFocus = selectOptions.length - 1; | ||
| } else { | ||
| indexToFocus = focusedItemIndex - 1; | ||
| } | ||
| } | ||
|
|
||
| if (key === 'ArrowDown') { | ||
| // When no index is set or at the last index, focus to the first, otherwise increment focus index | ||
| if (focusedItemIndex === null || focusedItemIndex === selectOptions.length - 1) { | ||
| indexToFocus = 0; | ||
| } else { | ||
| indexToFocus = focusedItemIndex + 1; | ||
| } | ||
| } | ||
|
|
||
| setFocusedItemIndex(indexToFocus ?? null); | ||
| const focusedItem = selectOptions.filter((option) => !option.isDisabled)[indexToFocus!]; | ||
| setActiveItem(`select-create-typeahead-${focusedItem.value.replace(' ', '-')}`); | ||
| } | ||
| }; | ||
|
|
||
| const onInputKeyDown = (event: React.KeyboardEvent<HTMLInputElement>) => { | ||
| const enabledMenuItems = selectOptions.filter((option) => !option.isDisabled); | ||
| const [firstMenuItem] = enabledMenuItems; | ||
| const focusedItem = focusedItemIndex ? enabledMenuItems[focusedItemIndex] : firstMenuItem; | ||
|
|
||
| switch (event.key) { | ||
| // Select the first available option | ||
| case 'Enter': | ||
| if (isOpen) { | ||
| onSelect(undefined, focusedItem.value as string); | ||
| setIsOpen((prevIsOpen) => !prevIsOpen); | ||
| setFocusedItemIndex(null); | ||
| setActiveItem(null); | ||
| } | ||
|
|
||
| setIsOpen((prevIsOpen) => !prevIsOpen); | ||
| setFocusedItemIndex(null); | ||
| setActiveItem(null); | ||
|
|
||
| break; | ||
| case 'Tab': | ||
| case 'Escape': | ||
| setIsOpen(false); | ||
| setActiveItem(null); | ||
| break; | ||
| case 'ArrowUp': | ||
| case 'ArrowDown': | ||
| event.preventDefault(); | ||
| handleMenuArrowKeys(event.key); | ||
| break; | ||
| } | ||
| }; | ||
|
|
||
| const toggle = (toggleRef: React.Ref<MenuToggleElement>) => ( | ||
| <MenuToggle ref={toggleRef} variant="typeahead" onClick={onToggleClick} isExpanded={isOpen} isFullWidth> | ||
| <TextInputGroup isPlain> | ||
| <TextInputGroupMain | ||
| value={inputValue} | ||
| onClick={onToggleClick} | ||
| onChange={onTextInputChange} | ||
| onKeyDown={onInputKeyDown} | ||
| id={`${dataTestId}-input`} | ||
| data-testid={`${dataTestId}-input`} | ||
| innerRef={textInputRef} | ||
| isExpanded={isOpen} | ||
| autoComplete="off" | ||
| placeholder="Type or select an option" | ||
| {...(activeItem && { 'aria-activedescendant': activeItem })} | ||
| role="combobox" | ||
| aria-controls="select-create-typeahead-listbox" | ||
| /> | ||
|
|
||
| <TextInputGroupUtilities> | ||
| {!!inputValue && ( | ||
| <Button | ||
| variant="plain" | ||
| onClick={() => { | ||
| setSelected(''); | ||
| setInputValue(''); | ||
| setFilterValue(''); | ||
| onChange?.(''); | ||
| textInputRef?.current?.focus(); | ||
| }} | ||
| aria-label="Clear input value" | ||
| > | ||
| <TimesIcon aria-hidden /> | ||
| </Button> | ||
| )} | ||
| </TextInputGroupUtilities> | ||
| </TextInputGroup> | ||
| </MenuToggle> | ||
| ); | ||
|
|
||
| return ( | ||
| <Select | ||
| data-testdid={`${dataTestId}-select`} | ||
| isOpen={isOpen} | ||
| selected={selected} | ||
| onSelect={onSelect} | ||
| onOpenChange={() => { | ||
| setIsOpen(false); | ||
| }} | ||
| toggle={toggle} | ||
| > | ||
| <SelectList id="select-create-typeahead-listbox"> | ||
| {selectOptions.map((option, index) => ( | ||
| <SelectOption | ||
| key={option.value} | ||
| itemId={option.value} | ||
| data-testid={`select-typeahead-${option.value}`} | ||
| description={option.description} | ||
| isFocused={focusedItemIndex === index} | ||
| className={option.className} | ||
| onClick={() => setSelected(option.value)} | ||
| > | ||
| {option.value} | ||
| </SelectOption> | ||
| ))} | ||
| </SelectList> | ||
| </Select> | ||
| ); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| export * from './Typeahead'; |
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