useComboBoxState

Provides state management for a combo box component. Handles building a collection of items from props and manages the option selection state of the combo box. In addition, it tracks the input value, focus state, and other properties of the combo box.

install	`yarn add react-stately`
version	3.33.0
usage	`import {useComboBoxState} from 'react-stately'`

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NPM

API#

useComboBoxState<T extends object>(
  (props: ComboBoxStateOptions<T>
)): ComboBoxState<T>

Interface#

Properties

Name	Type	Description
`inputValue`	`string`	The current value of the combo box input.
`focusStrategy`	`FocusStrategy \| null`	Controls which item will be auto focused when the menu opens.
`isFocused`	`boolean`	Whether the select is currently focused.
`selectedKey`	`Key \| null`	The key for the currently selected item.
`selectedItem`	`Node<T> \| null`	The value of the currently selected item.
`collection`	`Collection<Node<T>>`	A collection of items in the list.
`disabledKeys`	`Set<Key>`	A set of items that are disabled.
`selectionManager`	`SelectionManager`	A selection manager to read and update multiple selection state.
`isOpen`	`boolean`	Whether the overlay is currently open.
`realtimeValidation`	`ValidationResult`	Realtime validation results, updated as the user edits the value.
`displayValidation`	`ValidationResult`	Currently displayed validation results, updated when the user commits their changes.

Methods

Method	Description
`setInputValue( (value: string )): void`	Sets the value of the combo box input.
`commit(): void`	Selects the currently focused item and updates the input value.
`open( (focusStrategy?: FocusStrategy \| \| null, , trigger?: MenuTriggerAction )): void`	Opens the menu.
`toggle( (focusStrategy?: FocusStrategy \| \| null, , trigger?: MenuTriggerAction )): void`	Toggles the menu.
`revert(): void`	Resets the input value to the previously selected item's text if any and closes the menu.
`setFocused( (isFocused: boolean )): void`	Sets whether the select is focused.
`setSelectedKey( (key: Key \| \| null )): void`	Sets the selected key.
`setOpen( (isOpen: boolean )): void`	Sets whether the overlay is open.
`close(): void`	Closes the overlay.
`updateValidation( (result: ValidationResult )): void`	Updates the current validation result. Not displayed to the user until `commitValidation` is called.
`resetValidation(): void`	Resets the displayed validation state to valid when the user resets the form.
`commitValidation(): void`	Commits the realtime validation so it is displayed to the user.

Example#

See the docs for useComboBox in react-aria for an example of useComboBoxState.

Name	Type	Default	Description
`defaultFilter`	`FilterFn`	—	The filter function used to determine if a option should be included in the combo box list.
`allowsEmptyCollection`	`boolean`	—	Whether the combo box allows the menu to be open when the collection is empty.
`shouldCloseOnBlur`	`boolean`	—	Whether the combo box menu should close on blur.
`defaultItems`	`Iterable<T>`	—	The list of ComboBox items (uncontrolled).
`items`	`Iterable<T>`	—	The list of ComboBox items (controlled).
`onOpenChange`	`( (isOpen: boolean, , menuTrigger?: MenuTriggerAction )) => void`	—	Method that is called when the open state of the menu changes. Returns the new open state and the action that caused the opening of the menu.
`onSelectionChange`	`( (key: Key \| \| null )) => void`	—	Handler that is called when the selection changes.
`inputValue`	`string`	—	The value of the ComboBox input (controlled).
`defaultInputValue`	`string`	—	The default value of the ComboBox input (uncontrolled).
`onInputChange`	`( (value: string )) => void`	—	Handler that is called when the ComboBox input value changes.
`allowsCustomValue`	`boolean`	—	Whether the ComboBox allows a non-item matching input value to be set.
`menuTrigger`	`MenuTriggerAction`	`'input'`	The interaction required to display the ComboBox menu.
`disabledKeys`	`Iterable<Key>`	—	The item keys that are disabled. These items cannot be selected, focused, or otherwise interacted with.
`selectedKey`	`Key \| null`	—	The currently selected key in the collection (controlled).
`defaultSelectedKey`	`Key`	—	The initial selected key in the collection (uncontrolled).
`isDisabled`	`boolean`	—	Whether the input is disabled.
`isReadOnly`	`boolean`	—	Whether the input can be selected but not changed by the user.
`placeholder`	`string`	—	Temporary text that occupies the text input when it is empty.
`isRequired`	`boolean`	—	Whether user input is required on the input before form submission.
`isInvalid`	`boolean`	—	Whether the input value is invalid.
`validationBehavior`	`'aria' \| 'native'`	`'aria'`	Whether to use native HTML form validation to prevent form submission when the value is missing or invalid, or mark the field as required or invalid via ARIA.
`validate`	`( (value: ComboBoxValidationValue )) => ValidationError \| true \| null \| undefined`	—	A function that returns an error message if a given value is invalid. Validation errors are displayed to the user when the form is submitted if `validationBehavior="native"`. For realtime validation, use the `isInvalid` prop instead.
`autoFocus`	`boolean`	—	Whether the element should receive focus on render.
`onFocus`	`( (e: FocusEvent<HTMLInputElement> )) => void`	—	Handler that is called when the element receives focus.
`onBlur`	`( (e: FocusEvent<HTMLInputElement> )) => void`	—	Handler that is called when the element loses focus.
`onFocusChange`	`( (isFocused: boolean )) => void`	—	Handler that is called when the element's focus status changes.
`onKeyDown`	`( (e: KeyboardEvent )) => void`	—	Handler that is called when a key is pressed.
`onKeyUp`	`( (e: KeyboardEvent )) => void`	—	Handler that is called when a key is released.
`label`	`ReactNode`	—	The content to display as the label.
`description`	`ReactNode`	—	A description for the field. Provides a hint such as specific requirements for what to choose.
`errorMessage`	`ReactNode \| ( (v: ValidationResult )) => ReactNode`	—	An error message for the field.
`collection`	`Collection<Node<T>>`	—	A pre-constructed collection to use instead of building one from items and children.

(
  (textValue: string,
  , inputValue: string
)) => boolean

'focus'
  | 'input'
  | 'manual'

string | number

'valid' | 'invalid'

Name	Type	Description
`selectedKey`	`Key \| null`	The selected key in the ComboBox.
`inputValue`	`string`	The value of the ComboBox input.

string | string[]

BaseEvent<ReactKeyboardEvent<any>>

SyntheticEvent & {stopPropagation: () => void,
continuePropagation: () => void
}

Name	Type	Description
`isInvalid`	`boolean`	Whether the input value is invalid.
`validationErrors`	`string[]`	The current error messages for the input if it is invalid, otherwise an empty array.
`validationDetails`	`ValidityState`	The native validation details for the input.

A generic interface to access a readonly sequential collection of unique keyed items.

Extends: Iterable

Properties

Name	Type	Description
`size`	`number`	The number of items in the collection.

Methods

Method	Description
`getKeys(): Iterable<Key>`	Iterate over all keys in the collection.
`getItem( (key: Key )): T \| null`	Get an item by its key.
`at( (idx: number )): T \| null`	Get an item by the index of its key.
`getKeyBefore( (key: Key )): Key \| null`	Get the key that comes before the given key in the collection.
`getKeyAfter( (key: Key )): Key \| null`	Get the key that comes after the given key in the collection.
`getFirstKey(): Key \| null`	Get the first key in the collection.
`getLastKey(): Key \| null`	Get the last key in the collection.
`getChildren( (key: Key )): Iterable<T>`	Iterate over the child items of the given key.
`getTextValue( (key: Key )): string`	Returns a string representation of the item's contents.

Name	Type	Description
`type`	`string`	The type of item this node represents.
`key`	`Key`	A unique key for the node.
`value`	`T \| null`	The object value the node was created from.
`level`	`number`	The level of depth this node is at in the hierarchy.
`hasChildNodes`	`boolean`	Whether this item has children, even if not loaded yet.
`rendered`	`ReactNode`	The rendered contents of this node (e.g. JSX).
`textValue`	`string`	A string value for this node, used for features like typeahead.
`aria-label`	`string`	An accessibility label for this node.
`index`	`number`	The index of this node within its parent.
`wrapper`	`( (element: ReactElement )) => ReactElement`	A function that should be called to wrap the rendered node.
`parentKey`	`Key \| null`	The key of the parent node.
`prevKey`	`Key \| null`	The key of the node before this node.
`nextKey`	`Key \| null`	The key of the node after this node.
`props`	`any`	Additional properties specific to a particular node type.
`render`	`( (node: Node<any> )) => ReactElement`	A function that renders this node to a React Element in the DOM.

Properties

Name	Type	Description
`inputValue`	`string`	The current value of the combo box input.
`focusStrategy`	`FocusStrategy \| null`	Controls which item will be auto focused when the menu opens.
`isFocused`	`boolean`	Whether the select is currently focused.
`selectedKey`	`Key \| null`	The key for the currently selected item.
`selectedItem`	`Node<T> \| null`	The value of the currently selected item.
`collection`	`Collection<Node<T>>`	A collection of items in the list.
`disabledKeys`	`Set<Key>`	A set of items that are disabled.
`selectionManager`	`SelectionManager`	A selection manager to read and update multiple selection state.
`isOpen`	`boolean`	Whether the overlay is currently open.
`realtimeValidation`	`ValidationResult`	Realtime validation results, updated as the user edits the value.
`displayValidation`	`ValidationResult`	Currently displayed validation results, updated when the user commits their changes.

Methods

Method	Description
`setInputValue( (value: string )): void`	Sets the value of the combo box input.
`commit(): void`	Selects the currently focused item and updates the input value.
`open( (focusStrategy?: FocusStrategy \| \| null, , trigger?: MenuTriggerAction )): void`	Opens the menu.
`toggle( (focusStrategy?: FocusStrategy \| \| null, , trigger?: MenuTriggerAction )): void`	Toggles the menu.
`revert(): void`	Resets the input value to the previously selected item's text if any and closes the menu.
`setFocused( (isFocused: boolean )): void`	Sets whether the select is focused.
`setSelectedKey( (key: Key \| \| null )): void`	Sets the selected key.
`setOpen( (isOpen: boolean )): void`	Sets whether the overlay is open.
`close(): void`	Closes the overlay.
`updateValidation( (result: ValidationResult )): void`	Updates the current validation result. Not displayed to the user until `commitValidation` is called.
`resetValidation(): void`	Resets the displayed validation state to valid when the user resets the form.
`commitValidation(): void`	Commits the realtime validation so it is displayed to the user.

'first' | 'last'

An interface for reading and updating multiple selection state.

Properties

Name	Type	Description
`selectionMode`	`SelectionMode`	The type of selection that is allowed in the collection.
`disallowEmptySelection`	`boolean`	Whether the collection allows empty selection.
`selectionBehavior`	`SelectionBehavior`	The selection behavior for the collection.
`isFocused`	`boolean`	Whether the collection is currently focused.
`focusedKey`	`Key`	The current focused key in the collection.
`childFocusStrategy`	`FocusStrategy`	Whether the first or last child of the focused key should receive focus.
`selectedKeys`	`Set<Key>`	The currently selected keys in the collection.
`rawSelection`	`Selection`	The raw selection value for the collection. Either 'all' for select all, or a set of keys.
`isEmpty`	`boolean`	Whether the selection is empty.
`isSelectAll`	`boolean`	Whether all items in the collection are selected.
`firstSelectedKey`	`Key \| null`
`lastSelectedKey`	`Key \| null`
`disabledKeys`	`Set<Key>`
`disabledBehavior`	`DisabledBehavior`

Methods

Method	Description
`constructor( collection: Collection<Node<unknown>>, state: MultipleSelectionState, options?: SelectionManagerOptions ): void`
`setSelectionBehavior( (selectionBehavior: SelectionBehavior )): void`	Sets the selection behavior for the collection.
`setFocused( (isFocused: boolean )): void`	Sets whether the collection is focused.
`setFocusedKey( (key: Key \| \| null, , childFocusStrategy?: FocusStrategy )): void`	Sets the focused key.
`isSelected( (key: Key )): void`	Returns whether a key is selected.
`extendSelection( (toKey: Key )): void`	Extends the selection to the given key.
`toggleSelection( (key: Key )): void`	Toggles whether the given key is selected.
`replaceSelection( (key: Key )): void`	Replaces the selection with only the given key.
`setSelectedKeys( (keys: Iterable<Key> )): void`	Replaces the selection with the given keys.
`selectAll(): void`	Selects all items in the collection.
`clearSelection(): void`	Removes all keys from the selection.
`toggleSelectAll(): void`	Toggles between select all and an empty selection.
`select( (key: Key, , e?: PressEvent \| LongPressEvent \| PointerEvent )): void`
`isSelectionEqual( (selection: Set<Key> )): void`	Returns whether the current selection is equal to the given selection.
`canSelectItem( (key: Key )): void`
`isDisabled( (key: Key )): void`
`isLink( (key: Key )): void`
`getItemProps( (key: Key )): void`

Properties

Name	Type	Description
`selectionMode`	`SelectionMode`	The type of selection that is allowed in the collection.
`selectionBehavior`	`SelectionBehavior`	The selection behavior for the collection.
`disallowEmptySelection`	`boolean`	Whether the collection allows empty selection.
`selectedKeys`	`Selection`	The currently selected keys in the collection.
`disabledKeys`	`Set<Key>`	The currently disabled keys in the collection.
`disabledBehavior`	`DisabledBehavior`	Whether `disabledKeys` applies to selection, actions, or both.
`isFocused`	`boolean`	Whether the collection is currently focused.
`focusedKey`	`Key`	The current focused key in the collection.
`childFocusStrategy`	`FocusStrategy`	Whether the first or last child of the focused key should receive focus.

Methods

Method	Description
`setSelectionBehavior( (selectionBehavior: SelectionBehavior )): void`	Sets the selection behavior for the collection.
`setSelectedKeys( (keys: Selection )): void`	Sets the selected keys in the collection.
`setFocused( (isFocused: boolean )): void`	Sets whether the collection is focused.
`setFocusedKey( (key: Key \| \| null, , child?: FocusStrategy )): void`	Sets the focused key, and optionally, whether the first or last child of that key should receive focus.

'none'
  | 'single'
  | 'multiple'

'toggle' | 'replace'

'all' | Set<Key>

'selection' | 'all'

A LayoutDelegate provides layout information for collection items.

Method	Description
`getItemRect( (key: Key )): Rect \| null`	Returns a rectangle for the item with the given key.
`getVisibleRect(): Rect`	Returns the visible rectangle of the collection.
`getContentSize(): Size`	Returns the size of the scrollable content in the collection.
`getKeyRange( (from: Key, , to: Key )): Key[]`	Returns a list of keys between `from` and `to`.

Name	Type	Description
`x`	`number`
`y`	`number`
`width`	`number`
`height`	`number`

Name	Type	Description
`width`	`number`
`height`	`number`

Name	Type	Description
`allowsCellSelection`	`boolean`
`layoutDelegate`	`LayoutDelegate`

Properties

Name	Type	Description
`type`	`'pressstart' \| 'pressend' \| 'pressup' \| 'press'`	The type of press event being fired.
`pointerType`	`PointerType`	The pointer type that triggered the press event.
`target`	`Element`	The target element of the press event.
`shiftKey`	`boolean`	Whether the shift keyboard modifier was held during the press event.
`ctrlKey`	`boolean`	Whether the ctrl keyboard modifier was held during the press event.
`metaKey`	`boolean`	Whether the meta keyboard modifier was held during the press event.
`altKey`	`boolean`	Whether the alt keyboard modifier was held during the press event.
`x`	`number`	X position relative to the target.
`y`	`number`	Y position relative to the target.

Methods

Method	Description
`continuePropagation(): void`	By default, press events stop propagation to parent elements. In cases where a handler decides not to handle a specific event, it can call `continuePropagation()` to allow a parent to handle it.

'mouse'
  | 'pen'
  | 'touch'
  | 'keyboard'
  | 'virtual'

Name	Type	Description
`type`	`'longpressstart' \| 'longpressend' \| 'longpress'`	The type of long press event being fired.
`pointerType`	`PointerType`	The pointer type that triggered the press event.
`target`	`Element`	The target element of the press event.
`shiftKey`	`boolean`	Whether the shift keyboard modifier was held during the press event.
`ctrlKey`	`boolean`	Whether the ctrl keyboard modifier was held during the press event.
`metaKey`	`boolean`	Whether the meta keyboard modifier was held during the press event.
`altKey`	`boolean`	Whether the alt keyboard modifier was held during the press event.
`x`	`number`	X position relative to the target.
`y`	`number`	Y position relative to the target.