@dnb/eufemia
Version:
DNB Eufemia Design System UI Library
51 lines (50 loc) • 3.98 kB
JavaScript
"use client";
import { useContext, useMemo } from 'react';
import pointer from '../utils/json-pointer';
import DataContext from '../DataContext/Context';
import IterateItemContext from '../Iterate/IterateItemContext';
export default function useExternalValue(props) {
const {
path,
itemPath,
value = undefined,
transformers,
emptyValue = undefined
} = props;
const {
data
} = useContext(DataContext) || {};
const iterateItemContext = useContext(IterateItemContext);
const inIterate = Boolean(iterateItemContext);
const {
value: iterateElementValue
} = iterateItemContext || {};
return useMemo(() => {
if (value !== undefined && value !== emptyValue) {
var _transformers$current, _transformers$current2, _transformers$current3;
return (_transformers$current = transformers === null || transformers === void 0 ? void 0 : (_transformers$current2 = transformers.current) === null || _transformers$current2 === void 0 ? void 0 : (_transformers$current3 = _transformers$current2.fromExternal) === null || _transformers$current3 === void 0 ? void 0 : _transformers$current3.call(_transformers$current2, value)) !== null && _transformers$current !== void 0 ? _transformers$current : emptyValue;
}
if (inIterate && itemPath) {
if (itemPath === '/') {
var _transformers$current4, _transformers$current5, _transformers$current6;
return (_transformers$current4 = transformers === null || transformers === void 0 ? void 0 : (_transformers$current5 = transformers.current) === null || _transformers$current5 === void 0 ? void 0 : (_transformers$current6 = _transformers$current5.fromExternal) === null || _transformers$current6 === void 0 ? void 0 : _transformers$current6.call(_transformers$current5, iterateElementValue)) !== null && _transformers$current4 !== void 0 ? _transformers$current4 : emptyValue;
}
if (pointer.has(iterateElementValue, itemPath)) {
var _transformers$current7, _transformers$current8, _transformers$current9;
return (_transformers$current7 = transformers === null || transformers === void 0 ? void 0 : (_transformers$current8 = transformers.current) === null || _transformers$current8 === void 0 ? void 0 : (_transformers$current9 = _transformers$current8.fromExternal) === null || _transformers$current9 === void 0 ? void 0 : _transformers$current9.call(_transformers$current8, pointer.get(iterateElementValue, itemPath))) !== null && _transformers$current7 !== void 0 ? _transformers$current7 : emptyValue;
}
}
if (data && path) {
if (path === '/') {
var _transformers$current10, _transformers$current11, _transformers$current12;
return (_transformers$current10 = transformers === null || transformers === void 0 ? void 0 : (_transformers$current11 = transformers.current) === null || _transformers$current11 === void 0 ? void 0 : (_transformers$current12 = _transformers$current11.fromExternal) === null || _transformers$current12 === void 0 ? void 0 : _transformers$current12.call(_transformers$current11, data)) !== null && _transformers$current10 !== void 0 ? _transformers$current10 : emptyValue;
}
if (pointer.has(data, path)) {
var _transformers$current13, _transformers$current14, _transformers$current15;
return (_transformers$current13 = transformers === null || transformers === void 0 ? void 0 : (_transformers$current14 = transformers.current) === null || _transformers$current14 === void 0 ? void 0 : (_transformers$current15 = _transformers$current14.fromExternal) === null || _transformers$current15 === void 0 ? void 0 : _transformers$current15.call(_transformers$current14, pointer.get(data, path))) !== null && _transformers$current13 !== void 0 ? _transformers$current13 : emptyValue;
}
}
return emptyValue;
}, [data, emptyValue, inIterate, itemPath, iterateElementValue, path, transformers, value]);
}
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