overleaf/services/web/frontend/js/shared/hooks/use-detach-action.js

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import { useCallback, useEffect } from 'react'
import { useDetachContext } from '../context/detach-context'
import getMeta from '../../utils/meta'
const debugPdfDetach = getMeta('ol-debugPdfDetach')
export default function useDetachAction(
actionName,
actionFunction,
senderRole,
targetRole
) {
const {
role,
broadcastEvent,
addEventHandler,
deleteEventHandler,
} = useDetachContext()
const eventName = `action-${actionName}`
const triggerFn = useCallback(
(...args) => {
if (role === senderRole) {
broadcastEvent(eventName, { args })
} else {
actionFunction(...args)
}
},
[role, senderRole, eventName, actionFunction, broadcastEvent]
)
const handleActionEvent = useCallback(
message => {
if (message.event !== eventName) {
return
}
if (role !== targetRole) {
return
}
if (debugPdfDetach) {
console.log(`Do ${actionFunction.name} on event ${eventName}`)
}
actionFunction(...message.data.args)
},
[role, targetRole, eventName, actionFunction]
)
useEffect(() => {
addEventHandler(handleActionEvent)
return () => deleteEventHandler(handleActionEvent)
}, [addEventHandler, deleteEventHandler, handleActionEvent])
return triggerFn
}