formik-fields/dist/formik-fields.umd.js

An extension to the great formik-library

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react'), require('formik')) :
  typeof define === 'function' && define.amd ? define(['exports', 'react', 'formik'], factory) :
  (factory((global.FormikFields = {}),global.React,global.Formik));
}(this, (function (exports,React,formik) { 'use strict';

  function _objectWithoutPropertiesLoose(source, excluded) {
    if (source == null) return {};
    var target = {};
    var sourceKeys = Object.keys(source);
    var key, i;

    for (i = 0; i < sourceKeys.length; i++) {
      key = sourceKeys[i];
      if (excluded.indexOf(key) >= 0) continue;
      target[key] = source[key];
    }

    return target;
  }

  function _objectWithoutProperties(source, excluded) {
    if (source == null) return {};
    var target = _objectWithoutPropertiesLoose(source, excluded);
    var key, i;

    if (Object.getOwnPropertySymbols) {
      var sourceSymbolKeys = Object.getOwnPropertySymbols(source);

      for (i = 0; i < sourceSymbolKeys.length; i++) {
        key = sourceSymbolKeys[i];
        if (excluded.indexOf(key) >= 0) continue;
        if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
        target[key] = source[key];
      }
    }

    return target;
  }

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _typeof2(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof2(obj); }

  function _typeof(obj) {
    if (typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol") {
      _typeof = function _typeof(obj) {
        return _typeof2(obj);
      };
    } else {
      _typeof = function _typeof(obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof2(obj);
      };
    }

    return _typeof(obj);
  }

  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return self;
  }

  function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
      return call;
    }

    return _assertThisInitialized(self);
  }

  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }

  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };

    return _setPrototypeOf(o, p);
  }

  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }

    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }

  var simpleIsEqual = function simpleIsEqual(a, b) {
    return a === b;
  };

  function index (resultFn, isEqual) {
    if (isEqual === void 0) {
      isEqual = simpleIsEqual;
    }

    var lastThis;
    var lastArgs = [];
    var lastResult;
    var calledOnce = false;

    var isNewArgEqualToLast = function isNewArgEqualToLast(newArg, index) {
      return isEqual(newArg, lastArgs[index]);
    };

    var result = function result() {
      for (var _len = arguments.length, newArgs = new Array(_len), _key = 0; _key < _len; _key++) {
        newArgs[_key] = arguments[_key];
      }

      if (calledOnce && lastThis === this && newArgs.length === lastArgs.length && newArgs.every(isNewArgEqualToLast)) {
        return lastResult;
      }

      lastResult = resultFn.apply(this, newArgs);
      calledOnce = true;
      lastThis = this;
      lastArgs = newArgs;
      return lastResult;
    };

    return result;
  }

  function getFieldKeys(props) {
    return Object.keys(props.fields);
  }
  function calcInitialValues(props) {
    var res = {};
    getFieldKeys(props).forEach(function (key) {
      return res[key] = props.fields[key].initialValue;
    });
    return res;
  }

  function toMemoizedValidator(props, key) {
    return index(props.fields[key].validate);
  }

  function calcMemoizedValidatorsFromProps(props) {
    var memoizedValidators = {};
    getFieldKeys(props).filter(function (key) {
      return props.fields[key].validate;
    }).forEach(function (key) {
      return memoizedValidators[key] = toMemoizedValidator(props, key);
    });
    return memoizedValidators;
  }

  function toFormikFieldStateMemoizedByKey(key) {
    return index(function (value, error, isTouched, setFieldValue, setFieldTouched) {
      return {
        name: key,
        error: error,
        isTouched: isTouched,
        value: value,
        handleChange: function handleChange(e) {
          return setFieldValue(key, e.target.value);
        },
        handleBlur: function handleBlur() {
          return setFieldTouched(key, true);
        },
        setValue: function setValue(newValue, shouldValidate) {
          return setFieldValue(key, newValue, shouldValidate);
        },
        setIsTouched: function setIsTouched(newTouched, shouldValidate) {
          return setFieldTouched(key, newTouched, shouldValidate);
        }
      };
    });
  }

  function calcMemoizedFormikBagToFormikFieldStateMap(props) {
    var res = {};
    getFieldKeys(props).forEach(function (key) {
      return res[key] = toFormikFieldStateMemoizedByKey(key);
    });
    return res;
  }

  var shallowEq = function shallowEq(a, b) {
    for (var key in a) {
      // @ts-ignore
      if (a[key] !== b[key]) {
        return false;
      }
    }

    return true;
  };

  var RenderPureFormikFields =
  /*#__PURE__*/
  function (_React$Component) {
    _inherits(RenderPureFormikFields, _React$Component);

    function RenderPureFormikFields() {
      _classCallCheck(this, RenderPureFormikFields);

      return _possibleConstructorReturn(this, _getPrototypeOf(RenderPureFormikFields).apply(this, arguments));
    }

    _createClass(RenderPureFormikFields, [{
      key: "shouldComponentUpdate",
      value: function shouldComponentUpdate(nextProps) {
        var formikFields = nextProps.formikFields,
            errors = nextProps.errors,
            rest = _objectWithoutProperties(nextProps, ["formikFields", "errors"]);

        if (shallowEq(rest, this.props) && shallowEq(formikFields, this.props.formikFields) && shallowEq(errors, this.props.errors)) {
          return false;
        }

        return true;
      }
    }, {
      key: "render",
      value: function render() {
        var _this$props = this.props,
            render = _this$props.render,
            children = _this$props.children,
            formikFields = _this$props.formikFields,
            formikBag = _objectWithoutProperties(_this$props, ["render", "children", "formikFields"]);

        if (render) {
          return render(formikFields, formikBag);
        }

        if (children) {
          return children(formikFields, formikBag);
        }

        throw new Error('you have to provide either the children- or the render-prop');
      }
    }]);

    return RenderPureFormikFields;
  }(React.Component);

  var withoutFalsies = function withoutFalsies(obj) {
    var res = {};
    Object.keys(obj) // @ts-ignore
    .filter(function (key) {
      return !!obj[key];
    }) // @ts-ignore
    .forEach(function (key) {
      return res[key] = obj[key];
    });
    return res;
  };

  var FormikFields =
  /*#__PURE__*/
  function (_React$PureComponent) {
    _inherits(FormikFields, _React$PureComponent);

    function FormikFields(props) {
      var _this;

      _classCallCheck(this, FormikFields);

      _this = _possibleConstructorReturn(this, _getPrototypeOf(FormikFields).call(this, props));
      _this.initialValues = void 0;
      _this.memoizedValidatorMap = void 0;
      _this.memoizedFormikBagToFormikFieldStateMap = void 0;

      _this.fieldKeys = function () {
        return getFieldKeys(_this.props);
      };

      _this.validateKey = function (key, values) {
        if (!_this.memoizedValidatorMap[key]) {
          return false;
        }

        var validator = _this.memoizedValidatorMap[key];
        return validator(values[key]);
      };

      _this.validate = function (values) {
        var res = {};

        _this.fieldKeys().filter(function (key) {
          return _this.memoizedValidatorMap[key];
        }).forEach(function (key) {
          return res[key] = _this.validateKey(key, values);
        });

        if (_this.props.validate) {
          return withoutFalsies(Object.assign(res, _this.props.validate(values)));
        }

        return withoutFalsies(res);
      };

      _this.formikFieldStateByKey = function (key, formikBag) {
        return _this.memoizedFormikBagToFormikFieldStateMap[key](formikBag.values[key], formikBag.errors[key], !!formikBag.touched[key], formikBag.setFieldValue, formikBag.setFieldTouched);
      };

      _this.getState = function (formikBag) {
        var res = {};

        _this.fieldKeys().forEach(function (key) {
          return res[key] = _this.formikFieldStateByKey(key, formikBag);
        });

        return res;
      };

      _this.renderCustomFieldsForm = function (formikBag) {
        var isValidating = formikBag.isValidating,
            other = _objectWithoutProperties(formikBag, ["isValidating"]);

        return React.createElement(RenderPureFormikFields, Object.assign({}, other, {
          render: _this.props.render,
          children: _this.props.children,
          formikFields: _this.getState(formikBag)
        }));
      };

      _this.initialValues = calcInitialValues(props);
      _this.memoizedValidatorMap = calcMemoizedValidatorsFromProps(props);
      _this.memoizedFormikBagToFormikFieldStateMap = calcMemoizedFormikBagToFormikFieldStateMap(props);
      return _this;
    }

    _createClass(FormikFields, [{
      key: "render",
      value: function render() {
        var _this$props = this.props,
            fields = _this$props.fields,
            render = _this$props.render,
            children = _this$props.children,
            props = _objectWithoutProperties(_this$props, ["fields", "render", "children"]);

        return React.createElement(formik.Formik, Object.assign({}, props, {
          initialValues: this.initialValues,
          validate: this.validate,
          render: this.renderCustomFieldsForm
        }));
      }
    }]);

    return FormikFields;
  }(React.PureComponent);

  exports.FormikFields = FormikFields;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
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