overleaf/services/web/frontend/js/shared/hooks/use-detach-state.js
Alf Eaton 50df230846 [web] Upgrade Prettier to match version in monorepo root (#6231)
GitOrigin-RevId: 02f97af1b9704782eee77a0b7dfc477ada23e34d
2022-01-11 09:03:23 +00:00

48 lines
1.2 KiB
JavaScript

import { useEffect, useState, useCallback } from 'react'
import { useDetachContext } from '../context/detach-context'
import getMeta from '../../utils/meta'
const debugPdfDetach = getMeta('ol-debugPdfDetach')
export default function useDetachState(
key,
defaultValue,
senderRole,
targetRole
) {
const [value, setValue] = useState(defaultValue)
const { role, broadcastEvent, addEventHandler, deleteEventHandler } =
useDetachContext()
const eventName = `state-${key}`
useEffect(() => {
if (role === senderRole) {
broadcastEvent(eventName, { value })
}
}, [role, senderRole, eventName, value, broadcastEvent])
const handleStateEvent = useCallback(
message => {
if (message.event !== eventName) {
return
}
if (role !== targetRole) {
return
}
if (debugPdfDetach) {
console.log(`Set ${message.data.value} for ${eventName}`)
}
setValue(message.data.value)
},
[role, targetRole, eventName, setValue]
)
useEffect(() => {
addEventHandler(handleStateEvent)
return () => deleteEventHandler(handleStateEvent)
}, [addEventHandler, deleteEventHandler, handleStateEvent])
return [value, setValue]
}