cw-form-render-mobile/es/render-core/FieldItem/index.js

通过 JSON Schema 生成标准 Form，常用于自定义搭建配置界面生成

import _Form from "antd-mobile/es/components/form";
function _createForOfIteratorHelper(r, e) { var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (!t) { if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) { t && (r = t); var _n = 0, F = function F() {}; return { s: F, n: function n() { return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] }; }, e: function e(r) { throw r; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var o, a = !0, u = !1; return { s: function s() { t = t.call(r); }, n: function n() { var r = t.next(); return a = r.done, r; }, e: function e(r) { u = !0, o = r; }, f: function f() { try { a || null == t.return || t.return(); } finally { if (u) throw o; } } }; }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
import { __rest } from "tslib";
import React, { useContext } from 'react';
import { cloneDeep } from 'lodash-es';
import { isObject } from '../../utils';
import { FRContext } from '../../models/context';
import { isHasExpression, parseAllExpression } from 'cw-form-render/es/models/expression';
import { getDependValues } from './module';
import Main from './main';
import { isLayoutContainer } from '../../constants';
// 将嵌套的表单数据扁平化（移除布局容器层级）
var flattenFormData = function flattenFormData(values, flattenSchema) {
  if (!flattenSchema || !values || !isObject(values)) {
    return values;
  }
  // 找出所有布局容器字段
  var containerPaths = Object.keys(flattenSchema).filter(function (key) {
    var _a;
    var schema = (_a = flattenSchema[key]) === null || _a === void 0 ? void 0 : _a.schema;
    return isLayoutContainer(schema);
  }).sort(function (a, b) {
    var depthA = (a.match(/\./g) || []).length;
    var depthB = (b.match(/\./g) || []).length;
    return depthB - depthA; // 从深到浅
  });
  if (containerPaths.length === 0) {
    return values;
  }
  var result = cloneDeep(values);
  containerPaths.forEach(function (containerPath) {
    var cleanPath = containerPath.replace(/\[\]/g, '').replace(/^#\.?/, '');
    if (!cleanPath) return;
    var pathParts = cleanPath.split('.');
    var containerKey = pathParts[pathParts.length - 1];
    var parentPath = pathParts.slice(0, -1);
    var parent = result;
    var _iterator = _createForOfIteratorHelper(parentPath),
      _step;
    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var part = _step.value;
        if (!parent[part]) return;
        parent = parent[part];
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }
    if (parent[containerKey] && isObject(parent[containerKey])) {
      var container = parent[containerKey];
      Object.keys(container).forEach(function (childKey) {
        parent[childKey] = container[childKey];
      });
      delete parent[containerKey];
    }
  });
  return result;
};
export default (function (props) {
  var schema = props.schema,
    rootPath = props.rootPath,
    otherProps = __rest(props, ["schema", "rootPath"]);
  var store = useContext(FRContext);
  var _store$getState = store.getState(),
    formSchema = _store$getState.schema;
  var dependencies = schema === null || schema === void 0 ? void 0 : schema.dependencies;
  // No function expressions exist
  if (!isHasExpression(schema) && !(schema === null || schema === void 0 ? void 0 : schema.dependencies)) {
    return /*#__PURE__*/React.createElement(Main, Object.assign({}, props, {
      store: store
    }));
  }
  // Need to listen to form values for dynamic rendering
  return /*#__PURE__*/React.createElement(_Form.Item, {
    noStyle: true,
    //dependencies={schema.dependencies}
    shouldUpdate: function shouldUpdate(prevValues, curValues) {
      // Observe whether the value of a function expression dependency has changed
      // TODO 进行优化
      return true;
    }
  }, function (form) {
    var formData = form.getFieldsValue(true);
    var _store$getState2 = store.getState(),
      flattenSchema = _store$getState2.flattenSchema,
      flattenData = _store$getState2.flattenData;
    // 如果启用了 flattenData，将嵌套数据扁平化供表达式使用
    if (flattenData && flattenSchema) {
      formData = flattenFormData(formData, flattenSchema);
    }
    var formDependencies = [];
    var dependValues = (dependencies || []).map(function (depPath) {
      var item = [];
      formDependencies.push(item);
      return getDependValues(form.getFieldsValue(true), depPath, props, item, flattenSchema);
    });
    var newSchema = parseAllExpression(schema, formData, rootPath, formSchema);
    return /*#__PURE__*/React.createElement(Main, Object.assign({
      schema: Object.assign(Object.assign({}, newSchema), {
        dependencies: formDependencies
      }),
      rootPath: rootPath
    }, otherProps, {
      dependValues: dependValues,
      store: store
    }));
  });
});