| import * as React from 'react'; |
|
|
| export interface Selection<T = string> { |
| deselectAll: () => void; |
| deselectOne: (key: T) => void; |
| selectAll: () => void; |
| selectOne: (key: T) => void; |
| selected: Set<T>; |
| selectedAny: boolean; |
| selectedAll: boolean; |
| } |
|
|
| |
| export function useSelection<T = string>(keys: T[] = []): Selection<T> { |
| const [selected, setSelected] = React.useState<Set<T>>(new Set()); |
|
|
| React.useEffect(() => { |
| setSelected(new Set()); |
| }, [keys]); |
|
|
| const handleDeselectAll = React.useCallback(() => { |
| setSelected(new Set()); |
| }, []); |
|
|
| const handleDeselectOne = React.useCallback((key: T) => { |
| setSelected((prev) => { |
| const copy = new Set(prev); |
| copy.delete(key); |
| return copy; |
| }); |
| }, []); |
|
|
| const handleSelectAll = React.useCallback(() => { |
| setSelected(new Set(keys)); |
| }, [keys]); |
|
|
| const handleSelectOne = React.useCallback((key: T) => { |
| setSelected((prev) => { |
| const copy = new Set(prev); |
| copy.add(key); |
| return copy; |
| }); |
| }, []); |
|
|
| const selectedAny = selected.size > 0; |
| const selectedAll = selected.size === keys.length; |
|
|
| return { |
| deselectAll: handleDeselectAll, |
| deselectOne: handleDeselectOne, |
| selectAll: handleSelectAll, |
| selectOne: handleSelectOne, |
| selected, |
| selectedAny, |
| selectedAll, |
| }; |
| } |
|
|
