/
ArrayOfPrimitivesInput.tsx
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/
ArrayOfPrimitivesInput.tsx
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import React from 'react'
import {get} from 'lodash'
import {Card, Stack, Text} from '@sanity/ui'
import {ArrayOfPrimitivesInputProps} from '../../../types'
import {Item, List} from '../common/list'
import {PrimitiveItemProps} from '../../../types/itemProps'
import {ArrayOfPrimitivesItem} from '../../../members'
import {ErrorItem} from '../ArrayOfObjectsInput/List/ErrorItem'
import {UploadTargetCard} from '../common/UploadTargetCard'
import {getEmptyValue} from './getEmptyValue'
import {PrimitiveValue} from './types'
import {nearestIndexOf} from './utils/nearestIndex'
import {ItemRow} from './ItemRow'
import {ArrayOfPrimitivesFunctions} from './ArrayOfPrimitivesFunctions'
interface State {
disableTransition: boolean
}
// Note: this should be a class component until React provides support for a hook version of getSnapshotBeforeUpdate
/** @beta */
export class ArrayOfPrimitivesInput extends React.PureComponent<
ArrayOfPrimitivesInputProps,
State
> {
_element: HTMLElement | null = null
constructor(props: ArrayOfPrimitivesInputProps) {
super(props)
this.state = {
disableTransition: false,
}
}
handleAppend = (itemValue: PrimitiveValue) => {
const {value = [], onIndexFocus, onItemAppend} = this.props
onItemAppend(itemValue)
onIndexFocus(value.length)
}
handlePrepend = (itemValue: PrimitiveValue) => {
const {onIndexFocus, value = [], onItemPrepend} = this.props
onItemPrepend(itemValue)
onIndexFocus(value.length)
}
handleSortEnd = (event: {fromIndex: number; toIndex: number}) => {
const {onIndexFocus, onMoveItem, value} = this.props
if (value) onMoveItem(event)
onIndexFocus(event.toIndex)
}
// Enable transition when the user starts dragging an item
handleItemMoveStart = () => {
this.setState({disableTransition: false})
}
// Disable transition when the user stops dragging an item.
// Note: there's an issue with the transition of items when the sorting is completed, so we disable the
// transition effect when the user stops dragging.
handleItemMoveEnd = () => {
this.setState({disableTransition: true})
}
focus() {
if (this._element) {
this._element.focus()
}
}
getSnapshotBeforeUpdate(prevProps: ArrayOfPrimitivesInputProps) {
const {focusPath: prevFocusPath = [], value: prevValue = []} = prevProps
const {focusPath = [], value = []} = this.props
if (prevFocusPath[0] === focusPath[0] && prevValue.length !== value.length) {
// the length of the array has changed, but the focus path has not, which may happen if someone inserts or removes a new item above the one currently in focus
const focusIndex = focusPath[0]
const selection = window.getSelection()
if (!(selection?.focusNode instanceof HTMLElement)) {
return null
}
const input = selection.focusNode?.querySelector('input,textarea')
return input instanceof HTMLInputElement
? {
prevFocusedIndex: focusIndex,
restoreSelection: {
text: selection.toString(),
start: input.selectionStart,
end: input.selectionEnd,
value: input.value,
},
}
: {}
}
return null
}
componentDidUpdate(
prevProps: ArrayOfPrimitivesInputProps,
prevState: Record<string, unknown>,
snapshot?: {restoreSelection: {start: number; end: number}; prevFocusedIndex: number}
) {
const {onIndexFocus} = this.props
if (snapshot?.restoreSelection && prevProps.value) {
const prevFocusedValue = prevProps.value[snapshot.prevFocusedIndex]
const nearestIndex = nearestIndexOf(
this.props.value || [],
snapshot.prevFocusedIndex,
prevFocusedValue
)
if (nearestIndex === -1) {
return
}
const newInput = this._element?.querySelector(
`[data-item-index='${nearestIndex}'] input,textarea`
)
if (newInput instanceof HTMLInputElement) {
newInput.focus()
try {
newInput.setSelectionRange(snapshot.restoreSelection.start, snapshot.restoreSelection.end)
} catch {
// not all inputs supports selection (e.g. <input type="number" />)
}
}
onIndexFocus(nearestIndex)
}
}
renderArrayItem = (props: Omit<PrimitiveItemProps, 'renderDefault'>) => {
const {schemaType} = this.props
const sortable = schemaType.options?.sortable !== false
return <ItemRow {...props} sortable={sortable} insertableTypes={schemaType.of} />
}
render() {
const {
schemaType,
members,
readOnly,
renderInput,
onUpload,
onItemRemove,
resolveUploader,
elementProps,
arrayFunctions: ArrayFunctions = ArrayOfPrimitivesFunctions,
} = this.props
const isSortable = !readOnly && get(schemaType, 'options.sortable') !== false
// Note: we need this in order to generate new id's when items are moved around in the list
// without it, dndkit will restore focus on the original index of the dragged item
const membersWithSortIds = members.map((member) => ({
id: `${member.key}-${member.kind === 'item' ? member.item.value : 'error'}`,
member: member,
}))
return (
<Stack space={3} data-testid="array-primitives-input">
<UploadTargetCard
types={schemaType.of}
resolveUploader={resolveUploader}
onUpload={onUpload}
{...elementProps}
tabIndex={0}
>
<Stack space={1}>
{membersWithSortIds.length === 0 ? (
<Card padding={3} border style={{borderStyle: 'dashed'}} radius={2}>
<Text align="center" muted size={1}>
{schemaType.placeholder || <>No items</>}
</Text>
</Card>
) : (
<Card padding={1} border>
<List
onItemMove={this.handleSortEnd}
onItemMoveStart={this.handleItemMoveStart}
onItemMoveEnd={this.handleItemMoveEnd}
items={membersWithSortIds.map((m) => m.id)}
sortable={isSortable}
gap={1}
>
{membersWithSortIds.map(({member, id}, index) => {
return (
<Item
key={member.key}
id={id}
sortable={isSortable}
disableTransition={this.state.disableTransition}
>
{member.kind === 'item' && (
<ArrayOfPrimitivesItem
member={member}
renderItem={this.renderArrayItem}
renderInput={renderInput}
/>
)}
{member.kind === 'error' && (
<ErrorItem
sortable={isSortable}
member={member}
onRemove={() => onItemRemove(index)}
/>
)}
</Item>
)
})}
</List>
</Card>
)}
</Stack>
</UploadTargetCard>
<ArrayFunctions
onChange={this.props.onChange}
onItemAppend={this.handleAppend}
onItemPrepend={this.handlePrepend}
onValueCreate={getEmptyValue}
readOnly={this.props.readOnly}
schemaType={this.props.schemaType}
value={this.props.value}
/>
</Stack>
)
}
}