react-ions/lib/components/FormGroup/FormGroup.js

'use strict';

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

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _debounce = require('lodash/debounce');

var _debounce2 = _interopRequireDefault(_debounce);

var _validation = require('../../utilities/validation');

var _form = require('../../utilities/form');

var _immutable = require('immutable');

var _style = require('./style.scss');

var _style2 = _interopRequireDefault(_style);

var _OptClass = require('../internal/OptClass');

var _OptClass2 = _interopRequireDefault(_OptClass);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

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

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var FormGroup = function (_React$Component) {
  _inherits(FormGroup, _React$Component);

  function FormGroup(props) {
    _classCallCheck(this, FormGroup);

    var _this = _possibleConstructorReturn(this, (FormGroup.__proto__ || Object.getPrototypeOf(FormGroup)).call(this, props));

    _this.state = {
      fieldErrors: (0, _immutable.Map)()
    };

    _this.UNSAFE_componentWillReceiveProps = function (nextProps) {
      var nextPropsSchema = (0, _immutable.fromJS)(nextProps.schema);
      var thisPropsSchema = (0, _immutable.fromJS)(_this.props.schema);
      var nextPropsErrors = (0, _immutable.fromJS)(nextProps.fieldErrors);
      var thisPropsErrors = (0, _immutable.fromJS)(_this.props.fieldErrors);

      var updatedState = {};

      if (!(0, _immutable.is)(nextPropsSchema, thisPropsSchema)) {
        updatedState.fields = (0, _immutable.fromJS)(nextProps.schema);
      }

      if (!(0, _immutable.is)(nextPropsErrors, thisPropsErrors)) {
        updatedState.fieldErrors = nextProps.fieldErrors;
      }

      if (updatedState.fields || updatedState.fieldErrors) _this.setState(updatedState);
    };

    _this.UNSAFE_componentWillMount = function () {
      _this.setState({
        fields: (0, _immutable.fromJS)(_this.props.schema)
      });
    };

    _this._mapFieldErrors = function () {
      return _this.state.fieldErrors.merge(_this.props.fieldErrors);
    };

    _this.handleSubmit = function (event) {
      event.preventDefault();

      var fieldErrors = (0, _validation.validate)(_this._formValidation, (0, _form.formSchemaToKeyVal)(_this.state.fields));

      // Required to send error prop to ValidatedField component
      _this.setState({ fieldErrors: fieldErrors });

      if (fieldErrors && fieldErrors.size) {
        _this.props.errorCallback && _this.props.errorCallback(fieldErrors);
      } else {
        _this.props.submitCallback && _this.props.submitCallback(event, _this.state.fields.toJS());
      }
    };

    _this.handleChange = function (event) {
      var name = event.target.name;
      var val = event.target.value;
      var option = event.target.option;

      // Handle checkbox values
      if (event.target.type === 'checkbox') {
        val = event.target.checked;
      }

      _this.setState(function (prevState) {
        var fields = prevState.fields.setIn([name, 'value'], val);

        if (option) {
          fields = fields.setIn([name, 'option'], option);
        }

        var fieldErrors = _this._mapFieldErrors().set(name, '');

        return { fields: fields, fieldErrors: fieldErrors };
      }, function () {
        if (_this.props.changeCallback) {
          _this.props.changeCallback(_this.state.fields.toJS(), _this.props.fieldErrors.merge(_this.state.fieldErrors));
        }
      });
    };

    _this.getElements = function (children, recursiveCall) {
      // Reset validation each time this called on the form group
      if (!recursiveCall) {
        _this._formValidation = (0, _immutable.Map)();
      }
      var fieldErrors = _this._mapFieldErrors();

      return _react2.default.Children.map(children, function (child) {
        if (!child) return child;

        var childProps = {};

        if (child.props) {
          var name = child.props.name;

          var error = fieldErrors.get(name);
          var value = _this.state.fields.getIn([name, 'value']);
          var valueIsImmutable = _immutable.Iterable.isIterable(value);
          var valueProp = valueIsImmutable ? value.toJS() : value;

          if (child.props.validation) {
            _this._formValidation = _this._formValidation.set(name, (0, _immutable.Map)({
              validators: (0, _immutable.fromJS)(child.props.validation)
            }));
          }

          if (_this.state.fields.has(name) && _react2.default.isValidElement(child)) {
            childProps = {
              changeCallback: _this.props.debounceTime ? _this.debounce : _this.handleChange,
              value: valueProp,
              error: error
            };
          }

          childProps.children = _this.getElements(child.props.children, true);
          return _react2.default.cloneElement(child, childProps);
        }

        return child;
      });
    };

    _this.renderForm = function () {
      var elements = _this.getElements(_this.props.children);
      var formGroupClass = (0, _OptClass2.default)(_style2.default, 'form-group', _this.props.optClass);
      var formWrapper = void 0;

      if (!_this.props.nested) {
        formWrapper = _react2.default.createElement(
          'form',
          { className: formGroupClass, onSubmit: _this.handleSubmit },
          _react2.default.createElement(
            'fieldset',
            { className: _style2.default.fieldset },
            elements
          )
        );
      } else {
        var fieldsetClass = (0, _OptClass2.default)(_style2.default, 'fieldset', _this.props.optClass);

        formWrapper = _react2.default.createElement(
          'fieldset',
          { className: fieldsetClass },
          elements
        );
      }
      return formWrapper;
    };

    _this.render = function () {
      return _this.renderForm();
    };

    _this.debounce = (0, _debounce2.default)(_this.handleChange, _this.props.debounceTime);
    _this._formValidation = null;
    return _this;
  }

  // Errors can be passed in via props if external validation is used or
  // they can be captured from state if internal validation is used


  return FormGroup;
}(_react2.default.Component);

FormGroup.propTypes = {
  /**
   * A configuration object of name/value pairs
   * that correspond to the form fields names.
   */
  schema: _propTypes2.default.object,
  /**
   * A callback function to be called when a form value changes.
   */
  changeCallback: _propTypes2.default.func,
  /**
   * A callback function to be called when the form has error(s).
   */
  errorCallback: _propTypes2.default.func,
  /**
   * A callback function to be called when the form is submitted.
   */
  submitCallback: _propTypes2.default.func,
  /**
   * Optional CSS class(es) to be used for local styles (string or array of strings)
   */
  optClass: _propTypes2.default.oneOfType([_propTypes2.default.array, _propTypes2.default.string]),
  /**
   * Option to turn off form wrapper (for nested components)
   */
  nested: _propTypes2.default.bool,
  /**
   * Option to turn off debounce when something in the form group changes
   */
  debounceTime: _propTypes2.default.number,
  /**
   * A key value pair eg: { 'message': 'this is an error message' }, were the
   * key repesents the `name` of the given field to validate
   */
  fieldErrors: _propTypes2.default.object
};
FormGroup.defaultProps = {
  debounceTime: 0,
  fieldErrors: (0, _immutable.Map)()
};
exports.default = FormGroup;