|
| 1 | +import _ from 'lodash'; |
| 2 | +import { nanoid } from 'nanoid'; |
| 3 | +import { useEffect, useState } from 'react'; |
| 4 | +import { Control, useFormState, useWatch } from 'react-hook-form'; |
| 5 | +import useDeepCompareEffect from 'use-deep-compare-effect'; |
| 6 | +import { MessageData, UpdatePayload } from './types'; |
| 7 | +import { proxyToObject } from './utils'; |
| 8 | + |
| 9 | +const id = nanoid(); |
| 10 | + |
| 11 | +export function useExportControlToExtension(control: Control<any>) { |
| 12 | + const nestedFormValues = useWatch({ control }); |
| 13 | + const formState = useFormState({ control }); |
| 14 | + |
| 15 | + const [isExtensionEnabled, setIsExtensionEnabled] = useState(false); |
| 16 | + |
| 17 | + const handleInitMessage = (message: MessageEvent<MessageData>) => { |
| 18 | + if ( |
| 19 | + message.data.source !== 'react-hook-form-bridge' || |
| 20 | + message.data.type !== 'INIT' |
| 21 | + ) { |
| 22 | + return; |
| 23 | + } |
| 24 | + window.postMessage({ |
| 25 | + source: 'react-hook-form-bridge', |
| 26 | + type: 'WELCOME', |
| 27 | + } as MessageData); |
| 28 | + setIsExtensionEnabled(true); |
| 29 | + }; |
| 30 | + |
| 31 | + useEffect(() => { |
| 32 | + window.addEventListener('message', handleInitMessage); |
| 33 | + return () => window.removeEventListener('message', handleInitMessage); |
| 34 | + }, []); |
| 35 | + |
| 36 | + const toFlat = <V>(obj: object, defaultValue?: V) => { |
| 37 | + return [...control._names.mount].reduce((perv, name) => { |
| 38 | + // nested field may be `undefined` |
| 39 | + perv[name] = _.get(obj, name) || defaultValue; |
| 40 | + return perv; |
| 41 | + }, {} as Record<string, V>); |
| 42 | + }; |
| 43 | + |
| 44 | + useDeepCompareEffect(() => { |
| 45 | + if (!isExtensionEnabled) { |
| 46 | + return; |
| 47 | + } |
| 48 | + |
| 49 | + const { |
| 50 | + errors: nestedErrors, |
| 51 | + dirtyFields: nestedDirtyFields, |
| 52 | + touchedFields: nestedTouchedFields, |
| 53 | + ...formStatus |
| 54 | + } = proxyToObject(formState); |
| 55 | + |
| 56 | + const formValues = toFlat(nestedFormValues, ''); |
| 57 | + const dirtyFields = toFlat(nestedDirtyFields, false); |
| 58 | + const touchedFields = toFlat(nestedTouchedFields, false); |
| 59 | + |
| 60 | + const errors = Object.entries( |
| 61 | + toFlat<{ type: string; message: string }>(nestedErrors), |
| 62 | + ).reduce((perv, [key, value]) => { |
| 63 | + perv[key] = { |
| 64 | + type: value?.type as string, |
| 65 | + message: value?.message as string, |
| 66 | + }; |
| 67 | + return perv; |
| 68 | + }, {} as Record<string, { type?: string; message?: string }>); |
| 69 | + |
| 70 | + const nativeFields = [...control._names.mount].reduce((perv, name) => { |
| 71 | + perv[name] = !!_.get(control._fields, name)?._f?.ref?.type; |
| 72 | + return perv; |
| 73 | + }, {} as Record<string, boolean>); |
| 74 | + |
| 75 | + const updateMessagePayload: UpdatePayload = { |
| 76 | + id, |
| 77 | + data: { |
| 78 | + formValues, |
| 79 | + formState: { |
| 80 | + errors, |
| 81 | + dirtyFields, |
| 82 | + touchedFields, |
| 83 | + nativeFields, |
| 84 | + ...formStatus, |
| 85 | + }, |
| 86 | + }, |
| 87 | + }; |
| 88 | + window.postMessage({ |
| 89 | + source: 'react-hook-form-bridge', |
| 90 | + type: 'UPDATE', |
| 91 | + payload: updateMessagePayload, |
| 92 | + } as MessageData); |
| 93 | + }, [isExtensionEnabled, nestedFormValues, proxyToObject(formState)]); |
| 94 | + |
| 95 | + return { isExtensionEnabled }; |
| 96 | +} |
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