useMultipleSelectionState

Manages state for multiple selection and focus in a collection.

install	`yarn add @react-stately/selection`
version	3.3.0
usage	`import {useMultipleSelectionState} from '@react-stately/selection'`

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NPM

Introduction#

useMultipleSelectionState manages selection state for many components. Oftentimes, you won't need to use this hook directly, since it's included in hooks like useListState, and useSelectState. These expose a SelectionManager, which provides a higher level way to manipulate selection state.

API#

useMultipleSelectionState(
  (props: MultipleSelection
)): MultipleSelectionState

Interface#

Properties

Name	Type	Description
`selectionMode`	`SelectionMode`	The type of selection that is allowed in 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.
`isFocused`	`boolean`	Whether the collection is currently focused.
`focusedKey`	`Key`	The current focused key in the collection.

Methods

Method	Description
`setSelectedKeys( (keys: Selection \| \| ( (v: Selection )) => Selection )): void`	Sets the selected keys in the collection.
`setFocused( (isFocused: boolean )): void`	Sets whether the collection is focused.
`setFocusedKey( (key: Key )): void`	Sets the focused key.

Provides state management for list-like components. Handles building a collection of items from props, and manages multiple selection state.

useListState<T>(
  (props: ListProps<T>
)): ListState<T>

Name	Type	Description
`children`	`CollectionChildren<T>`	The contents of the collection.
`filter`	`( (nodes: Iterable<Node<T>> )) => Iterable<Node<T>>`	Filter function to generate a filtered list of nodes.
`items`	`Iterable<T>`	Item objects in the collection.
`disabledKeys`	`Iterable<Key>`	The item keys that are disabled. These items cannot be selected, focused, or otherwise interacted with.
`selectionMode`	`SelectionMode`	The type of selection that is allowed in the collection.
`disallowEmptySelection`	`boolean`	Whether the collection allows empty selection.
`selectedKeys`	`'all' \| Iterable<Key>`	The currently selected keys in the collection (controlled).
`defaultSelectedKeys`	`'all' \| Iterable<Key>`	The initial selected keys in the collection (uncontrolled).
`onSelectionChange`	`( (keys: Selection )) => any`	Handler that is called when the selection changes.

Name	Type	Description
`type`	`string`	The type of item this node represents.
`key`	`Key`	A unique key for the node.
`value`	`T`	The object value the node was created from.
`level`	`number`	The level of depth this node is at in the heirarchy.
`hasChildNodes`	`boolean`	Whether this item has children, even if not loaded yet.
`childNodes`	`Iterable<Node<T>>`	The loaded children of this node.
`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`	The key of the parent node.
`prevKey`	`Key`	The key of the node before this node.
`nextKey`	`Key`	The key of the node after this node.
`props`	`any`	Additional properties specific to a particular node type.

CollectionElement<T>
  | CollectionElement<T>[]
  | (
    (item: T
  )) => CollectionElement<T>

SectionElement<T> | ItemElement<T>

ReactElement<SectionProps<T>>

Name	Type	Description
`children`	`ItemElement<T> \| ItemElement<T>[] \| ItemRenderer<T>`	Static child items or a function to render children.
`title`	`ReactNode`	Rendered contents of the section, e.g. a header.
`aria-label`	`string`	An accessibility label for the section.
`items`	`Iterable<T>`	Item objects in the section.

ReactElement<ItemProps<T>>

Name	Type	Description
`children`	`ReactNode`	Rendered contents of the item or child items.
`title`	`ReactNode`	Rendered contents of the item if `children` contains child items.
`textValue`	`string`	A string representation of the item's contents, used for features like typeahead.
`aria-label`	`string`	An accessibility label for this item.
`childItems`	`Iterable<T>`	A list of child item objects. Used for dynamic collections.
`hasChildItems`	`boolean`	Whether this item has children, even if not loaded yet.

(
  (item: T
)) => ItemElement<T>

'none'
  | 'single'
  | 'multiple'

'all' | Set<Key>

Name	Type	Description
`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.

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

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`	Get an item by 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.

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.
`isFocused`	`boolean`	Whether the collection is currently focused.
`focusedKey`	`Key`	The current focused key in the collection.
`selectedKeys`	`Set<Key>`	The currently selected keys in the collection.
`isEmpty`	`boolean`	Whether the selection is empty.
`isSelectAll`	`boolean`	Whether all items in the collection are selected.
`firstSelectedKey`	`Key \| null`
`lastSelectedKey`	`Key \| null`

Methods

Method	Description
`setFocused( (isFocused: boolean )): void`	Sets whether the collection is focused.
`setFocusedKey( (key: Key )): 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.
`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 \| \| PointerEvent )): void`

Properties

Name	Type	Description
`selectionMode`	`SelectionMode`	The type of selection that is allowed in 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.
`isFocused`	`boolean`	Whether the collection is currently focused.
`focusedKey`	`Key`	The current focused key in the collection.

Methods

Method	Description
`setSelectedKeys( (keys: Selection \| \| ( (v: Selection )) => Selection )): void`	Sets the selected keys in the collection.
`setFocused( (isFocused: boolean )): void`	Sets whether the collection is focused.
`setFocusedKey( (key: Key )): void`	Sets the focused key.

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`	`HTMLElement`	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.

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

Provides state management for a select component. Handles building a collection of items from props, handles the open state for the popup menu, and manages multiple selection state.

useSelectState<T>(
  (props: SelectProps<T>
)): SelectState<T>

Name	Type	Default	Description
`children`	`CollectionChildren<T>`	—	The contents of the collection.
`isOpen`	`boolean`	—	Sets the open state of the menu.
`defaultOpen`	`boolean`	—	Sets the default open state of the menu.
`onOpenChange`	`( (isOpen: boolean )) => void`	—	Method that is called when the open state of the menu changes.
`shouldFlip`	`boolean`	`true`	Whether the menu should automatically flip direction when space is limited.
`items`	`Iterable<T>`	—	Item objects in the collection.
`disabledKeys`	`Iterable<Key>`	—	The item keys that are disabled. These items cannot be selected, focused, or otherwise interacted with.
`isLoading`	`boolean`	—	Whether the items are currently loading.
`onLoadMore`	`() => any`	—	Handler that is called when more items should be loaded, e.g. while scrolling near the bottom.
`isDisabled`	`boolean`	—	Whether the input is disabled.
`isReadOnly`	`boolean`	—	Whether the input can be selected but not changed by the user.
`validationState`	`ValidationState`	—	Whether the input should display its "valid" or "invalid" visual styling.
`isRequired`	`boolean`	—	Whether user input is required on the input before form submission. Often paired with the `necessityIndicator` prop to add a visual indicator to the input.
`label`	`ReactNode`	—	The content to display as the label.
`placeholder`	`string`	—	Temporary text that occupies the text input when it is empty.
`disallowEmptySelection`	`boolean`	—	Whether the collection allows empty selection.
`selectedKey`	`Key`	—	The currently selected key in the collection (controlled).
`defaultSelectedKey`	`Key`	—	The initial selected key in the collection (uncontrolled).
`onSelectionChange`	`( (key: Key )) => any`	—	Handler that is called when the selection changes.
`autoFocus`	`boolean`	—	Whether the element should receive focus on render.
`onFocus`	`( (e: FocusEvent )) => void`	—	Handler that is called when the element receives focus.
`onBlur`	`( (e: FocusEvent )) => 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.

'valid' | 'invalid'

BaseEvent<ReactKeyboardEvent<any>>

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

Properties

Name	Type	Description
`isFocused`	`boolean`	Whether the select is currently focused.
`selectedKey`	`Key`	The key for the currently selected item.
`selectedItem`	`Node<T>`	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.
`focusStrategy`	`FocusStrategy`	Controls which item will be auto focused when the menu opens.
`isOpen`	`boolean`	Whether the overlay is currently open.

Methods

Method	Description
`setFocused( (isFocused: boolean )): void`	Sets whether the select is focused.
`setSelectedKey( (key: Key )): void`	Sets the selected key.
`open( (focusStrategy: FocusStrategy \| \| null )): void`	Opens the menu.
`toggle( (focusStrategy: FocusStrategy \| \| null )): void`	Toggles the menu.
`close(): void`	Closes the overlay.

'first' | 'last'

Name	Type	Description
`selectionMode`	`SelectionMode`	The type of selection that is allowed in the collection.
`disallowEmptySelection`	`boolean`	Whether the collection allows empty selection.
`selectedKeys`	`'all' \| Iterable<Key>`	The currently selected keys in the collection (controlled).
`defaultSelectedKeys`	`'all' \| Iterable<Key>`	The initial selected keys in the collection (uncontrolled).
`onSelectionChange`	`( (keys: Selection )) => any`	Handler that is called when the selection changes.
`disabledKeys`	`Iterable<Key>`	The currently disabled keys in the collection (controlled).