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43 lines
1.2 KiB
43 lines
1.2 KiB
import * as React from 'react';
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import { convertChildrenToData } from '../utils/legacyUtil';
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/**
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* Parse `children` to `options` if `options` is not provided.
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* Then flatten the `options`.
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*/
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export default function useOptions(options, children, fieldNames) {
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return React.useMemo(function () {
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var mergedOptions = options;
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var childrenAsData = !options;
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if (childrenAsData) {
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mergedOptions = convertChildrenToData(children);
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}
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var valueOptions = new Map();
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var labelOptions = new Map();
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function dig(optionList) {
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var isChildren = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
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// for loop to speed up collection speed
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for (var i = 0; i < optionList.length; i += 1) {
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var option = optionList[i];
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if (!option[fieldNames.options] || isChildren) {
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valueOptions.set(option[fieldNames.value], option);
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labelOptions.set(option[fieldNames.label], option);
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} else {
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dig(option[fieldNames.options], true);
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}
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}
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}
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dig(mergedOptions);
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return {
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options: mergedOptions,
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valueOptions: valueOptions,
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labelOptions: labelOptions
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};
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}, [options, children, fieldNames]);
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} |