tdesign-react/lib/form/hooks/useFormItemInitialData.js

TDesign Component for React

/**
 * tdesign v1.16.2
 * (c) 2025 tdesign
 * @license MIT
 */

import React, { useEffect } from 'react';
import { isEmpty, get, has, unset } from 'lodash-es';
import { useFormContext, useFormListContext } from '../FormContext.js';
import { TD_DEFAULT_VALUE_MAP } from '../const.js';

function useFormItemInitialData(name, fullPath) {
  var hadReadFloatingFormData = false;
  var _useFormContext = useFormContext(),
    form = _useFormContext.form,
    floatingFormDataRef = _useFormContext.floatingFormDataRef,
    formContextInitialData = _useFormContext.initialData;
  var _useFormListContext = useFormListContext(),
    formListName = _useFormListContext.name,
    formListInitialData = _useFormListContext.initialData;
  useEffect(function () {
    if (hadReadFloatingFormData) {
      var nameList = formListName ? [formListName, name].flat() : name;
      unset(floatingFormDataRef.current, nameList);
    }
  }, [hadReadFloatingFormData, floatingFormDataRef, formListName, name]);
  function getDefaultInitialData(_ref) {
    var children = _ref.children,
      initialData = _ref.initialData;
    if (name && floatingFormDataRef !== null && floatingFormDataRef !== void 0 && floatingFormDataRef.current && !isEmpty(floatingFormDataRef.current)) {
      var nameList = formListName ? [formListName, name].flat() : name;
      var defaultInitialData = get(floatingFormDataRef.current, nameList);
      if (typeof defaultInitialData !== "undefined") {
        hadReadFloatingFormData = true;
        return defaultInitialData;
      }
    }
    if (formListName && Array.isArray(fullPath)) {
      var pathPrefix = fullPath.slice(0, -1);
      var pathExisted = has(form.store, pathPrefix);
      if (pathExisted) {
        return get(form.store, fullPath);
      }
    }
    if (typeof initialData !== "undefined") {
      return initialData;
    }
    if (name && formListInitialData.length) {
      var _defaultInitialData = get(formListInitialData, name);
      if (typeof _defaultInitialData !== "undefined") return _defaultInitialData;
    }
    if (name && formContextInitialData) {
      var _defaultInitialData2 = get(formContextInitialData, name);
      if (typeof _defaultInitialData2 !== "undefined") return _defaultInitialData2;
    }
    if (typeof children !== "function") {
      var childList = React.Children.toArray(children);
      var lastChild = childList[childList.length - 1];
      if (lastChild && /*#__PURE__*/React.isValidElement(lastChild)) {
        var _lastChild$props;
        var isMultiple = lastChild === null || lastChild === void 0 || (_lastChild$props = lastChild.props) === null || _lastChild$props === void 0 ? void 0 : _lastChild$props.multiple;
        var componentName = lastChild.type.displayName;
        return isMultiple ? [] : TD_DEFAULT_VALUE_MAP.get(componentName);
      }
    }
  }
  return {
    getDefaultInitialData: getDefaultInitialData
  };
}

export { useFormItemInitialData as default };
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