@dnb/eufemia
Version:
DNB Eufemia Design System UI Library
63 lines (62 loc) • 2.09 kB
JavaScript
"use client";
import { useCallback, useContext, useEffect, useReducer, useState } from 'react';
import DataContext from '../../DataContext/Context';
import WizardContext from '../../Wizard/Context';
import IsolationContext from './IsolationContext';
import { createDataReference } from './IsolationDataReference';
import structuredClone from '@ungap/structured-clone';
export default function useDataContextSnapshot({
enabled
} = {}) {
const [, forceUpdate] = useReducer(() => ({}), {});
const {
internalDataRef,
setData
} = useContext(DataContext);
const isolationContext = useContext(IsolationContext);
const hasWizard = Boolean(useContext(WizardContext));
const [dataReferenceFallback] = useState(() => {
if (enabled && !(isolationContext !== null && isolationContext !== void 0 && isolationContext.dataReference)) {
return createDataReference();
}
});
const {
dataReference = dataReferenceFallback,
setIsolatedData
} = isolationContext || {};
const {
snapshotRef,
eventsRef,
update,
refresh,
cleanup
} = dataReference || {};
const updateHandler = useCallback((data = null) => {
update(data || structuredClone(internalDataRef === null || internalDataRef === void 0 ? void 0 : internalDataRef.current));
forceUpdate();
}, [internalDataRef, update]);
useEffect(() => {
if (enabled && eventsRef) {
eventsRef.current.push(updateHandler);
refresh({
deferred: hasWizard
});
}
return () => cleanup === null || cleanup === void 0 ? void 0 : cleanup(updateHandler);
}, [cleanup, enabled, eventsRef, hasWizard, refresh, updateHandler]);
const handleReset = useCallback(() => {
window.requestAnimationFrame(() => {
if (snapshotRef) {
const data = structuredClone(snapshotRef.current);
setIsolatedData(data);
setData(data);
updateHandler(data);
}
});
}, [setData, setIsolatedData, snapshotRef, updateHandler]);
return {
handleReset,
snapshotRef
};
}
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