Tldraw/packages/editor/src/lib/hooks/usePresence.ts

23 wiersze
558 B
TypeScript

import { useValue } from '@tldraw/state'
import { TLInstancePresence } from '@tldraw/tlschema'
import { useEditor } from './useEditor'
// TODO: maybe move this to a computed property on the App class?
/**
* @returns The list of peer UserIDs
* @internal
*/
export function usePresence(userId: string): TLInstancePresence | null {
const editor = useEditor()
const latestPresence = useValue(
`latestPresence:${userId}`,
() => {
return editor.getCollaborators().find((c) => c.userId === userId)
},
[editor]
)
return latestPresence ?? null
}