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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| import React, { useState, useRef, useEffect } from 'react' | ||
| import { useCombobox } from 'downshift' | ||
| import { noop } from '../../utilities/other' | ||
| import { | ||
| itemToString, | ||
| isItemSelected, | ||
| renderListContents, | ||
| setInitialSelection, | ||
| } from './DropList.utils' | ||
| import { | ||
| getA11ySelectionMessageCommon, | ||
| onIsOpenChangeCommon, | ||
| onStateChangeCommon, | ||
| stateReducerCommon, | ||
| } from './DropList.downshift.common' | ||
| import { | ||
| DropListWrapperUI, | ||
| InputSearchHolderUI, | ||
| MenuListUI, | ||
| } from './DropList.css' | ||
| import ListItem, { generateListItemKey } from './DropList.ListItem' | ||
| import { VARIANTS } from './DropList.constants' | ||
|
|
||
| function Combobox({ | ||
| closeOnSelection = true, | ||
| customEmptyList = null, | ||
| 'data-cy': dataCy = `DropList.${VARIANTS.COMBOBOX}`, | ||
| initialSelectedItem, | ||
| isOpen = false, | ||
| items = [], | ||
| onSelectionChange = noop, | ||
| renderCustomListItem = null, | ||
| toggleOpenedState = noop, | ||
| withMultipleSelection = false, | ||
| }) { | ||
| const initialSelectedItemsArr = setInitialSelection({ | ||
| initialSelectedItem, | ||
| withMultipleSelection, | ||
| }) | ||
| const [inputItems, setInputItems] = useState(items) | ||
| const [selectedItems, setSelectedItems] = useState(initialSelectedItemsArr) | ||
| const inputEl = useRef(null) | ||
|
|
||
| const { | ||
| getComboboxProps, | ||
| getInputProps, | ||
| getItemProps, | ||
| getMenuProps, | ||
| highlightedIndex, | ||
| inputValue, | ||
| selectItem, | ||
| selectedItem, | ||
| } = useCombobox({ | ||
| initialInputValue: '', | ||
| initialIsOpen: isOpen, | ||
| initialSelectedItem, | ||
| isOpen, | ||
| items: inputItems, | ||
| itemToString, | ||
|
|
||
| getA11ySelectionMessage: ({ selectedItem }) => { | ||
| return getA11ySelectionMessageCommon({ | ||
| selectedItem, | ||
| selectedItems, | ||
| withMultipleSelection, | ||
| }) | ||
| }, | ||
|
|
||
| onInputValueChange({ inputValue }) { | ||
| setInputItems( | ||
| items.filter(item => | ||
| itemToString(item).toLowerCase().startsWith(inputValue.toLowerCase()) | ||
| ) | ||
| ) | ||
| }, | ||
|
|
||
| onIsOpenChange(changes) { | ||
| onIsOpenChangeCommon({ | ||
| closeOnSelection, | ||
| toggleOpenedState, | ||
| type: `${VARIANTS.COMBOBOX}.${changes.type}`, | ||
| }) | ||
| }, | ||
|
|
||
| onStateChange(changes) { | ||
| onStateChangeCommon({ | ||
| changes, | ||
| onSelectionChange, | ||
| selectItem, | ||
| selectedItems, | ||
| setSelectedItems, | ||
| type: `${VARIANTS.COMBOBOX}.${changes.type}`, | ||
| withMultipleSelection, | ||
| }) | ||
| }, | ||
|
|
||
| stateReducer(state, actionAndChanges) { | ||
| const { changes, type } = actionAndChanges | ||
|
|
||
| return stateReducerCommon({ | ||
| changes, | ||
| closeOnSelection, | ||
| selectedItems, | ||
| state, | ||
| type: `${VARIANTS.COMBOBOX}.${type}`, | ||
| withMultipleSelection, | ||
| }) | ||
| }, | ||
| }) | ||
|
|
||
| useEffect(() => { | ||
| isOpen && inputEl.current.focus() | ||
| }, [isOpen]) | ||
|
|
||
| function renderListItem(item, index) { | ||
| const itemProps = { | ||
| highlightedIndex, | ||
| index, | ||
| isSelected: isItemSelected({ | ||
| item, | ||
| selectedItem, | ||
| selectedItems, | ||
| }), | ||
| item, | ||
| key: generateListItemKey(item, index), | ||
| withMultipleSelection, | ||
| renderCustomListItem, | ||
| ...getItemProps({ item, index }), | ||
| } | ||
|
|
||
| return <ListItem {...itemProps} /> | ||
| } | ||
|
|
||
| return ( | ||
| <DropListWrapperUI | ||
| className="DropList DropList__Combobox" | ||
| data-cy={dataCy} | ||
| variant="combobox" | ||
| {...getComboboxProps()} | ||
| > | ||
| <InputSearchHolderUI show={items.length > 0}> | ||
| <input {...getInputProps({ ref: inputEl })} placeholder="Search" /> | ||
| </InputSearchHolderUI> | ||
| <MenuListUI className="MenuList MenuList-Combobox" {...getMenuProps()}> | ||
| {renderListContents({ | ||
| customEmptyList, | ||
| emptyList: items.length === 0, | ||
| inputValue, | ||
| items: inputItems, | ||
| renderListItem, | ||
| })} | ||
| </MenuListUI> | ||
| </DropListWrapperUI> | ||
| ) | ||
| } | ||
|
|
||
| export default Combobox |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| import React, { forwardRef } from 'react' | ||
| import { classNames } from '../../utilities/classNames' | ||
| import { isFunction, isObject, isString } from '../../utilities/is' | ||
| import { isItemADivider, isItemAGroupLabel } from './DropList.utils' | ||
| import { | ||
| DividerUI, | ||
| GroupLabelUI, | ||
| ListItemUI, | ||
| SelectedBadge, | ||
| } from './DropList.css' | ||
|
|
||
| const ListItem = forwardRef( | ||
| ( | ||
| { | ||
| item, | ||
| index, | ||
| highlightedIndex, | ||
| withMultipleSelection, | ||
| isSelected, | ||
| renderCustomListItem, | ||
| ...itemProps | ||
| }, | ||
| ref | ||
| ) => { | ||
| if (isItemADivider(item)) { | ||
| return ( | ||
| <DividerUI className="DropListItem--divider" key={`divider_${index}`} /> | ||
| ) | ||
| } | ||
|
|
||
| if (isItemAGroupLabel(item)) { | ||
| return ( | ||
| <GroupLabelUI | ||
| className="DropListItem--groupLabel" | ||
| key={`group_label_${index}`} | ||
| > | ||
| {item.label} | ||
| </GroupLabelUI> | ||
| ) | ||
| } | ||
|
|
||
| function getListItemClassNames(extraClassNames) { | ||
| return classNames( | ||
| 'DropListItem', | ||
| isSelected && 'is-selected', | ||
| highlightedIndex === index && 'is-highlighted', | ||
| withMultipleSelection && 'with-multiple-selection', | ||
| isString(extraClassNames) && extraClassNames | ||
| ) | ||
| } | ||
|
|
||
| if (renderCustomListItem != null && isFunction(renderCustomListItem)) { | ||
| return ( | ||
| <li | ||
| className={getListItemClassNames('DropListItem--custom')} | ||
| ref={ref} | ||
| {...itemProps} | ||
| > | ||
| {renderCustomListItem({ | ||
| item, | ||
| isSelected, | ||
| isHighlighted: highlightedIndex === index, | ||
| withMultipleSelection, | ||
| })} | ||
| </li> | ||
| ) | ||
| } | ||
|
|
||
| return ( | ||
| <ListItemUI | ||
| className={getListItemClassNames()} | ||
| highlighted={highlightedIndex === index} | ||
| ref={ref} | ||
| selected={isSelected} | ||
| withMultipleSelection={withMultipleSelection} | ||
| {...itemProps} | ||
| > | ||
| <span>{isObject(item) ? item.label : item}</span> | ||
| {withMultipleSelection ? ( | ||
| <SelectedBadge isSelected={isSelected} /> | ||
| ) : null} | ||
| </ListItemUI> | ||
| ) | ||
| } | ||
| ) | ||
|
|
||
| export function generateListItemKey(item, index) { | ||
| return isObject(item) | ||
| ? item.id || `${item.label}_${index}` | ||
| : `${item}_${index}` | ||
| } | ||
|
|
||
| export default ListItem |
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