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2026-05-25 17:08:18 +08:00
parent df501f6151
commit f1259b71b5
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+import * as React from 'react';
+import { convertChildrenToData } from "../utils/legacyUtil";
+
+/**
+ * Parse `children` to `options` if `options` is not provided.
+ * Then flatten the `options`.
+ */
+const useOptions = (options, children, fieldNames, optionFilterProp, optionLabelProp) => {
+  return React.useMemo(() => {
+    let mergedOptions = options;
+    const childrenAsData = !options;
+    if (childrenAsData) {
+      mergedOptions = convertChildrenToData(children);
+    }
+    const valueOptions = new Map();
+    const labelOptions = new Map();
+    const setLabelOptions = (labelOptionsMap, option, key) => {
+      if (key && typeof key === 'string') {
+        labelOptionsMap.set(option[key], option);
+      }
+    };
+    const dig = (optionList, isChildren = false) => {
+      // for loop to speed up collection speed
+      for (let i = 0; i < optionList.length; i += 1) {
+        const option = optionList[i];
+        if (!option[fieldNames.options] || isChildren) {
+          valueOptions.set(option[fieldNames.value], option);
+          setLabelOptions(labelOptions, option, fieldNames.label);
+          // https://github.com/ant-design/ant-design/issues/35304
+          optionFilterProp.forEach(prop => {
+            setLabelOptions(labelOptions, option, prop);
+          });
+          setLabelOptions(labelOptions, option, optionLabelProp);
+        } else {
+          dig(option[fieldNames.options], true);
+        }
+      }
+    };
+    dig(mergedOptions);
+    return {
+      options: mergedOptions,
+      valueOptions,
+      labelOptions
+    };
+  }, [options, children, fieldNames, optionFilterProp, optionLabelProp]);
+};
+export default useOptions;