File size: 2,859 Bytes
064bfd6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | import { useCallback, useState } from 'react'
import type { OptionWithDescription } from './select.js'
import { useSelectNavigation } from './use-select-navigation.js'
export type UseSelectStateProps<T> = {
/**
* Number of items to display.
*
* @default 5
*/
visibleOptionCount?: number
/**
* Options.
*/
options: OptionWithDescription<T>[]
/**
* Initially selected option's value.
*/
defaultValue?: T
/**
* Callback for selecting an option.
*/
onChange?: (value: T) => void
/**
* Callback for canceling the select.
*/
onCancel?: () => void
/**
* Callback for focusing an option.
*/
onFocus?: (value: T) => void
/**
* Value to focus
*/
focusValue?: T
}
export type SelectState<T> = {
/**
* Value of the currently focused option.
*/
focusedValue: T | undefined
/**
* 1-based index of the focused option in the full list.
* Returns 0 if no option is focused.
*/
focusedIndex: number
/**
* Index of the first visible option.
*/
visibleFromIndex: number
/**
* Index of the last visible option.
*/
visibleToIndex: number
/**
* Value of the selected option.
*/
value: T | undefined
/**
* All options.
*/
options: OptionWithDescription<T>[]
/**
* Visible options.
*/
visibleOptions: Array<OptionWithDescription<T> & { index: number }>
/**
* Whether the focused option is an input type.
*/
isInInput: boolean
/**
* Focus next option and scroll the list down, if needed.
*/
focusNextOption: () => void
/**
* Focus previous option and scroll the list up, if needed.
*/
focusPreviousOption: () => void
/**
* Focus next page and scroll the list down by a page.
*/
focusNextPage: () => void
/**
* Focus previous page and scroll the list up by a page.
*/
focusPreviousPage: () => void
/**
* Focus a specific option by value.
*/
focusOption: (value: T | undefined) => void
/**
* Select currently focused option.
*/
selectFocusedOption: () => void
/**
* Callback for selecting an option.
*/
onChange?: (value: T) => void
/**
* Callback for canceling the select.
*/
onCancel?: () => void
}
export function useSelectState<T>({
visibleOptionCount = 5,
options,
defaultValue,
onChange,
onCancel,
onFocus,
focusValue,
}: UseSelectStateProps<T>): SelectState<T> {
const [value, setValue] = useState<T | undefined>(defaultValue)
const navigation = useSelectNavigation<T>({
visibleOptionCount,
options,
initialFocusValue: undefined,
onFocus,
focusValue,
})
const selectFocusedOption = useCallback(() => {
setValue(navigation.focusedValue)
}, [navigation.focusedValue])
return {
...navigation,
value,
selectFocusedOption,
onChange,
onCancel,
}
}
|