overleaf/services/web/frontend/js/shared/hooks/use-detach-state.js
Timothée Alby f6fc3d468c Merge pull request #5854 from overleaf/ta-pdf-detach-v2
PDF Detach Updates

GitOrigin-RevId: c09c4fe37a922b041cfa1376e110a264a88177c8
2021-12-01 09:03:41 +00:00

52 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]
}