semantic-ui-react/dist/es/lib/factories.js

The official Semantic-UI-React integration.

import _extends from 'babel-runtime/helpers/extends';
import _typeof from 'babel-runtime/helpers/typeof';
import _uniq from 'lodash/uniq';
import _isFunction from 'lodash/isFunction';
import _isArray from 'lodash/isArray';
import _isPlainObject from 'lodash/isPlainObject';
import _isNumber from 'lodash/isNumber';
import _isString from 'lodash/isString';
import _isBoolean from 'lodash/isBoolean';
import _isNil from 'lodash/isNil';

import cx from 'classnames';
import React, { cloneElement, isValidElement } from 'react';

// ============================================================
// Factories
// ============================================================

/**
 * A more robust React.createElement. It can create elements from primitive values.
 *
 * @param {function|string} Component A ReactClass or string
 * @param {function} mapValueToProps A function that maps a primitive value to the Component props
 * @param {string|object|function} val The value to create a ReactElement from
 * @param {Object} [options={}]
 * @param {object} [options.defaultProps={}] Default props object
 * @param {object|function} [options.overrideProps={}] Override props object or function (called with regular props)
 * @returns {object|null}
 */
export function createShorthand(Component, mapValueToProps, val) {
  var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

  if (typeof Component !== 'function' && typeof Component !== 'string') {
    throw new Error('createShorthandFactory() Component must be a string or function.');
  }
  // short circuit noop values
  if (_isNil(val) || _isBoolean(val)) return null;

  var valIsString = _isString(val);
  var valIsNumber = _isNumber(val);

  var isReactElement = isValidElement(val);
  var isPropsObject = _isPlainObject(val);
  var isPrimitiveValue = valIsString || valIsNumber || _isArray(val);

  // unhandled type return null
  /* eslint-disable no-console */
  if (!isReactElement && !isPropsObject && !isPrimitiveValue) {
    if (process.env.NODE_ENV !== 'production') {
      console.error(['Shorthand value must be a string|number|array|object|ReactElement.', ' Use null|undefined|boolean for none', ' Received ' + (typeof val === 'undefined' ? 'undefined' : _typeof(val)) + '.'].join(''));
    }
    return null;
  }
  /* eslint-enable no-console */

  // ----------------------------------------
  // Build up props
  // ----------------------------------------
  var _options$defaultProps = options.defaultProps,
      defaultProps = _options$defaultProps === undefined ? {} : _options$defaultProps;

  // User's props

  var usersProps = isReactElement && val.props || isPropsObject && val || isPrimitiveValue && mapValueToProps(val);

  // Override props
  var _options$overrideProp = options.overrideProps,
      overrideProps = _options$overrideProp === undefined ? {} : _options$overrideProp;

  overrideProps = _isFunction(overrideProps) ? overrideProps(_extends({}, defaultProps, usersProps)) : overrideProps;

  // Merge props
  /* eslint-disable react/prop-types */
  var props = _extends({}, defaultProps, usersProps, overrideProps);

  // Merge className
  if (defaultProps.className || overrideProps.className || usersProps.className) {
    var mergedClassesNames = cx(defaultProps.className, overrideProps.className, usersProps.className);
    props.className = _uniq(mergedClassesNames.split(' ')).join(' ');
  }

  // Merge style
  if (defaultProps.style || overrideProps.style || usersProps.style) {
    props.style = _extends({}, defaultProps.style, usersProps.style, overrideProps.style);
  }

  // ----------------------------------------
  // Get key
  // ----------------------------------------

  // Use key, childKey, or generate key
  if (_isNil(props.key)) {
    var childKey = props.childKey;


    if (!_isNil(childKey)) {
      // apply and consume the childKey
      props.key = typeof childKey === 'function' ? childKey(props) : childKey;
      delete props.childKey;
    } else if (valIsString || valIsNumber) {
      // use string/number shorthand values as the key
      props.key = val;
    }
  }
  /* eslint-enable react/prop-types */

  // ----------------------------------------
  // Create Element
  // ----------------------------------------

  // Clone ReactElements
  if (isReactElement) return cloneElement(val, props);

  // Create ReactElements from built up props
  if (isPrimitiveValue || isPropsObject) return React.createElement(Component, props);
}

// ============================================================
// Factory Creators
// ============================================================

/**
 * Creates a `createShorthand` function that is waiting for a value and options.
 *
 * @param {function|string} Component A ReactClass or string
 * @param {function} mapValueToProps A function that maps a primitive value to the Component props
 * @returns {function} A shorthand factory function waiting for `val` and `defaultProps`.
 */
createShorthand.handledProps = [];
export function createShorthandFactory(Component, mapValueToProps) {
  if (typeof Component !== 'function' && typeof Component !== 'string') {
    throw new Error('createShorthandFactory() Component must be a string or function.');
  }

  return function (val, options) {
    return createShorthand(Component, mapValueToProps, val, options);
  };
}

// ============================================================
// HTML Factories
// ============================================================
export var createHTMLDivision = createShorthandFactory('div', function (val) {
  return { children: val };
});
export var createHTMLIframe = createShorthandFactory('iframe', function (src) {
  return { src: src };
});
export var createHTMLImage = createShorthandFactory('img', function (val) {
  return { src: val };
});
export var createHTMLInput = createShorthandFactory('input', function (val) {
  return { type: val };
});
export var createHTMLLabel = createShorthandFactory('label', function (val) {
  return { children: val };
});
export var createHTMLParagraph = createShorthandFactory('p', function (val) {
  return { children: val };
});