react-conventions/lib/components/Radio/RadioGroup.js

An open source set of React components that implement Ambassador's Design and UX patterns.

'use strict';

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

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _bind = require('classnames/bind');

var _bind2 = _interopRequireDefault(_bind);

var _Radio = require('./Radio');

var _Radio2 = _interopRequireDefault(_Radio);

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

var _style2 = _interopRequireDefault(_style);

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

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

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 RadioGroup = function (_React$Component) {
  _inherits(RadioGroup, _React$Component);

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

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

    _this.state = {
      value: _this.props.value,
      options: []
    };

    _this.componentWillMount = function () {
      //form an array of options based on the children that were passed in
      //this can be done in the case of a RadioGroup with explicit children (see docs example)
      if (_this.props.children) {
        var childOptions = _this.props.children.reduce(function (options, child) {
          if (child.type === _Radio2.default) {
            options.push({ name: child.props.name, label: child.props.label });
          }
          return options;
        }, []);

        _this.setState({ options: childOptions });
      }

      if (typeof _this.state.value !== 'undefined' && (_this.state.options || _this.props.options)) {
        _this.checkItem(_this.state.value, _this.state.options || _this.props.options);
      }
    };

    _this.componentWillReceiveProps = function (nextProps) {
      if (nextProps.value !== _this.state.value) {
        _this.setState({ value: nextProps.value }, function () {
          _this.checkItem(nextProps.value, _this.state.options || nextProps.options);
        });
      }
    };

    _this.handleChange = function (event, value) {
      event.persist();
      if (value !== _this.state.value) {
        _this.setState({ value: value }, function () {
          _this.checkItem(value, _this.state.options || _this.props.options);
        });
        if (typeof _this.props.changeCallback === 'function') {
          _this.props.changeCallback(event, value);
        }
      }
    };

    _this.checkItem = function (value, options) {
      var index = _this.getIndex(value, options);
      if (index >= 0) {
        options[index].checked = true;
      }
    };

    _this.getIndex = function (value, options) {
      var optionIndex = -1;
      options.map(function (radio, index) {
        if (radio.value === value) {
          optionIndex = index;
          return;
        }
      });

      return optionIndex;
    };

    _this.getOptions = function () {
      var groupName = _this.props.name;
      var groupLabelPosition = _this.props.labelPosition;

      var _this$props = _this.props,
          options = _this$props.options,
          label = _this$props.label,
          name = _this$props.name,
          value = _this$props.value,
          required = _this$props.required,
          labelPosition = _this$props.labelPosition,
          changeCallback = _this$props.changeCallback,
          other = _objectWithoutProperties(_this$props, ['options', 'label', 'name', 'value', 'required', 'labelPosition', 'changeCallback']);

      //this means explicit radio buttons were defined (usually paired with other form fields)
      //we create an options array in the state (because there is no options in props) for checkItem to use


      if (_this.props.children) {
        return _this.props.children.map(function (child, index) {
          if (child.type === _Radio2.default) {
            return _react2.default.cloneElement(child, {
              key: index,
              name: groupName,
              checked: _this.state.value === child.props.value,
              changeCallback: _this.handleChange,
              labelPosition: groupLabelPosition
            });
          } else {
            return child;
          }
        });
      }
      //this means a normal RadioGroup with an options array was defined
      else {
          return _this.props.options.map(function (option) {
            return _react2.default.createElement(_Radio2.default, _extends({
              key: option.value,
              value: option.value,
              label: option.label,
              name: groupName,
              checked: _this.state.value === option.value,
              labelPosition: groupLabelPosition,
              optClass: option.optClass,
              changeCallback: _this.handleChange
            }, other));
          });
        }
    };

    return _this;
  }

  _createClass(RadioGroup, [{
    key: 'render',
    value: function render() {
      var cx = _bind2.default.bind(_style2.default);
      var radioGroupClass = cx(_style2.default['radio-group'], this.props.optClass);

      return _react2.default.createElement(
        'div',
        { className: radioGroupClass },
        this.props.required ? _react2.default.createElement(
          'span',
          { className: _style2.default.asterisk },
          '*'
        ) : null,
        this.props.label ? _react2.default.createElement(
          'label',
          { className: _style2.default['radio-group-label'] },
          this.props.label
        ) : null,
        this.getOptions()
      );
    }
  }]);

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

RadioGroup.defaultProps = {
  disabled: false,
  required: false,
  labelPosition: 'right'
};
RadioGroup.propTypes = {
  /**
   * Text shown above the radio group.
   */
  label: _react2.default.PropTypes.string,
  /**
   * The name that will be applied to all radio buttons inside it.
   */
  name: _react2.default.PropTypes.string.isRequired,
  /**
   * Whether the radio group is required.
   */
  required: _react2.default.PropTypes.bool,
  /**
   * Whether the radio group is disabled.
   */
  disabled: _react2.default.PropTypes.bool,
  /**
   * A list of options for the radio group.
   */
  options: _react2.default.PropTypes.array,
  /**
   * Which option is checked.
   */
  value: _react2.default.PropTypes.string,
  /**
   * Where the label will be placed for all radio buttons. This will override any labelPosition properties defined for an individual radio button.
   */
  labelPosition: _react2.default.PropTypes.oneOf(['left', 'right']),
  /**
   * A callback function to be called when an option is changed.
   */
  changeCallback: _react2.default.PropTypes.func
};
exports.default = RadioGroup;