@dnb/eufemia
Version:
DNB Eufemia Design System UI Library
82 lines (81 loc) • 4.5 kB
JavaScript
"use strict";
"use client";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = useExternalValue;
var _react = require("react");
var _index = _interopRequireWildcard(require("../utils/json-pointer/index.js"));
var _Context = _interopRequireDefault(require("../DataContext/Context.js"));
var _IterateItemContext = _interopRequireDefault(require("../Iterate/IterateItemContext.js"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
function useExternalValue(props) {
const {
path,
itemPath,
value = undefined,
getValueSnapshot,
transformers,
emptyValue = undefined
} = props;
const dataContext = (0, _react.useContext)(_Context.default);
const {
data,
subscribeDataValue,
getDataValue
} = dataContext || {};
const iterateItemContext = (0, _react.useContext)(_IterateItemContext.default);
const inIterate = Boolean(iterateItemContext);
const {
value: iterateElementValue
} = iterateItemContext || {};
const subscribablePath = (0, _index.isPath)(path) ? path : undefined;
const subscribe = (0, _react.useCallback)(callback => {
if (subscribablePath && subscribeDataValue) {
return subscribeDataValue(subscribablePath, callback);
}
return () => undefined;
}, [subscribablePath, subscribeDataValue]);
const getSnapshot = (0, _react.useCallback)(() => {
if (subscribablePath && getDataValue) {
const value = getDataValue(subscribablePath);
return getValueSnapshot ? getValueSnapshot(value) : value;
}
return undefined;
}, [getDataValue, getValueSnapshot, subscribablePath]);
const dataValueSnapshot = (0, _react.useSyncExternalStore)(subscribe, getSnapshot, getSnapshot);
const dataValue = getValueSnapshot && subscribablePath && getDataValue ? getDataValue(subscribablePath) : dataValueSnapshot;
return (0, _react.useMemo)(() => {
if (value !== undefined && value !== emptyValue) {
var _transformers$current;
return (_transformers$current = transformers?.current?.fromExternal?.(value)) !== null && _transformers$current !== void 0 ? _transformers$current : emptyValue;
}
if (subscribablePath && getDataValue && (!inIterate || !itemPath || dataValue !== undefined)) {
var _transformers$current2;
return (_transformers$current2 = transformers?.current?.fromExternal?.(dataValue)) !== null && _transformers$current2 !== void 0 ? _transformers$current2 : emptyValue;
}
if (inIterate && itemPath) {
if (itemPath === '/') {
var _transformers$current3;
return (_transformers$current3 = transformers?.current?.fromExternal?.(iterateElementValue)) !== null && _transformers$current3 !== void 0 ? _transformers$current3 : emptyValue;
}
if (_index.default.has(iterateElementValue, itemPath)) {
var _transformers$current4;
return (_transformers$current4 = transformers?.current?.fromExternal?.(_index.default.get(iterateElementValue, itemPath))) !== null && _transformers$current4 !== void 0 ? _transformers$current4 : emptyValue;
}
}
if (data && path) {
if (path === '/') {
var _transformers$current5;
return (_transformers$current5 = transformers?.current?.fromExternal?.(data)) !== null && _transformers$current5 !== void 0 ? _transformers$current5 : emptyValue;
}
if (_index.default.has(data, path)) {
var _transformers$current6;
return (_transformers$current6 = transformers?.current?.fromExternal?.(_index.default.get(data, path))) !== null && _transformers$current6 !== void 0 ? _transformers$current6 : emptyValue;
}
}
return emptyValue;
}, [data, dataValue, getDataValue, getValueSnapshot, emptyValue, inIterate, itemPath, iterateElementValue, path, subscribablePath, transformers, value]);
}
//# sourceMappingURL=useExternalValue.js.map