passing-through/lib/index.js

Pass properties and modifier functions to child context's which can modify children

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Pass = Pass;
exports.Through = Through;
exports.Consumer = exports.Provider = void 0;

var _react = _interopRequireWildcard(require("react"));

var _propTypes = _interopRequireDefault(require("prop-types"));

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

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj["default"] = obj; return newObj; } }

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 _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; }

/**
 * Context used to shared the data.
 *
 * @private
 */
var _createContext = (0, _react.createContext)({
  passed: function passed() {
    return {};
  },
  modify: function modify() {
    return {};
  }
}),
    Provider = _createContext.Provider,
    Consumer = _createContext.Consumer;
/**
 * Pass properties through context to child components so they can change
 * props on the fly.
 *
 * @param {Object} props The properties of the component.
 * @public
 */


exports.Consumer = Consumer;
exports.Provider = Provider;

function Pass(props) {
  var children = props.children,
      modify = props.modify,
      passed = _objectWithoutProperties(props, ["children", "modify"]);

  return _react["default"].createElement(Provider, {
    value: {
      passed: passed,
      modify: modify
    }
  }, children);
}
/**
 * Validate that we've received all required properties in order to function.
 *
 * @type {Object}
 * @private
 */


Pass.propTypes = {
  children: _propTypes["default"].node.isRequired,
  modify: _propTypes["default"].object
};
/**
 * Default properties.
 *
 * @type {Object};
 */

Pass.defaultProps = {
  modify: {}
};
/**
 * Preferres the passed through properties over their own supplied properties.
 *
 * @param {Object} props The properties of the component.
 * @public
 */

function Through(props) {
  return _react["default"].createElement(Consumer, null, function (_ref) {
    var modify = _ref.modify,
        passed = _ref.passed;

    var children = props.children,
        attributes = _objectWithoutProperties(props, ["children"]);

    var child = _react.Children.only(children);

    Object.keys(passed).forEach(function applyModifiers(name) {
      var modifiers = modify[name];
      if (!Array.isArray(modifiers)) return;
      modifiers.forEach(function makeitso(modifier) {
        child = modifier(attributes, passed, child) || child;
      });
    });
    return (0, _react.cloneElement)(child, attributes);
  });
}
/**
 * Validate that we've received all required properties in order to function.
 *
 * @type {Object}
 * @private
 */


Through.propTypes = {
  children: _propTypes["default"].node.isRequired
};