@sula/ruler/es/Ruler.js

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

import * as React from 'react';
import RForm, { useForm } from 'rc-field-form';
import RulerContext, { HOOK_MARK } from './RulerContext';
import { transObjToArr } from './utils/lang';
import useRulerContext from './useContext';

var Ruler = function Ruler(props, ref) {
  var _useForm = useForm(),
      _useForm2 = _slicedToArray(_useForm, 1),
      formInstance = _useForm2[0];

  var _useRulerContext = useRulerContext(formInstance),
      _useRulerContext2 = _slicedToArray(_useRulerContext, 1),
      context = _useRulerContext2[0];

  var _props$disabled = props.disabled,
      disabled = _props$disabled === void 0 ? false : _props$disabled,
      _props$onChange = props.onChange,
      onChange = _props$onChange === void 0 ? function () {} : _props$onChange,
      _props$children = props.children,
      children = _props$children === void 0 ? function () {
    return null;
  } : _props$children,
      _props$onFieldValueCh = props.onFieldValueChange,
      onFieldValueChange = _props$onFieldValueCh === void 0 ? function () {} : _props$onFieldValueCh,
      _props$onFieldDidMoun = props.onFieldDidMount,
      onFieldDidMount = _props$onFieldDidMoun === void 0 ? function () {} : _props$onFieldDidMoun,
      _props$hasValidate = props.hasValidate,
      hasValidate = _props$hasValidate === void 0 ? true : _props$hasValidate,
      _props$component = props.component,
      component = _props$component === void 0 ? 'div' : _props$component;
  var keyRef = React.useRef({
    keys: [],
    id: 0
  });
  var value = props.value && props.value.length ? props.value : [[]];
  var initialValues = React.useMemo(function () {
    return value;
  }, []);
  React.useImperativeHandle(ref, context.getRuler);

  var _context$getInternalH = context.getInternalHooks(HOOK_MARK),
      setCallbacks = _context$getInternalH.setCallbacks,
      setGlobal = _context$getInternalH.setGlobal;

  React.useEffect(function () {
    /**
     * 外部更新value时
     */
    formInstance.setFieldsValue(value);
  }, [value]);
  setGlobal({
    disabled: disabled,
    hasValidate: hasValidate
  });
  var keyManager = keyRef.current;

  var onValuesChange = function onValuesChange() {
    // 如果不加true，则会拿到被动态删除的值
    var store = formInstance.getFieldsValue(true); // 用keys的长度过滤掉多余的undefined

    onChange(transObjToArr(store, keyManager.keys.length));
  };

  setCallbacks({
    onFieldValueChange: onFieldValueChange,
    onFieldDidMount: onFieldDidMount,
    onValuesChange: onValuesChange
  });
  var operations = {
    /** 增加 list */
    add: function add() {
      keyManager.keys = keyManager.keys.concat([keyManager.id]);
      keyManager.id += 1;
      var oldValue = formInstance.getFieldsValue(); // oldValue会残留删除后设置的undefined，但是没关系，反正keys会帮你干掉

      var newValue = transObjToArr(oldValue, keyManager.keys.length);
      onChange(newValue);
    },
    remove: function remove(name) {
      var oldValue = formInstance.getFieldsValue();
      var newValue = transObjToArr(oldValue, keyManager.keys.length);
      var newKeys = keyManager.keys.map(function (key, id) {
        if (id < name) {
          return key;
        }

        return keyManager.keys[id + 1];
      });
      keyManager.keys = newKeys.slice(0, -1);
      onChange(newValue.filter(function (_, id) {
        return id !== name;
      }));
    }
  };
  var listProvider = React.createElement(RulerContext.Provider, {
    value: context
  }, children(value.map(function (__, index) {
    var key = keyManager.keys[index];

    if (key === undefined) {
      keyManager.keys[index] = keyManager.id;
      key = keyManager.keys[index];
      keyManager.id += 1;
    }

    return {
      name: index,
      key: key
    };
  }), operations));
  return React.createElement(RForm, {
    component: component,
    onValuesChange: onValuesChange,
    form: formInstance,
    initialValues: initialValues
  }, listProvider);
};

export default Ruler;