polished/lib/mixins/linearGradient.js

A lightweight toolset for writing styles in Javascript.

"use strict";

exports.__esModule = true;
exports["default"] = linearGradient;

var _constructGradientValue = /*#__PURE__*/_interopRequireDefault( /*#__PURE__*/require("../internalHelpers/_constructGradientValue"));

var _errors = /*#__PURE__*/_interopRequireDefault( /*#__PURE__*/require("../internalHelpers/_errors"));

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

function _templateObject() {
  var data = _taggedTemplateLiteralLoose(["linear-gradient(", "", ")"]);

  _templateObject = function _templateObject() {
    return data;
  };

  return data;
}

function _taggedTemplateLiteralLoose(strings, raw) { if (!raw) { raw = strings.slice(0); } strings.raw = raw; return strings; }

/**
 * CSS for declaring a linear gradient, including a fallback background-color. The fallback is either the first color-stop or an explicitly passed fallback color.
 *
 * @example
 * // Styles as object usage
 * const styles = {
 *   ...linearGradient({
        colorStops: ['#00FFFF 0%', 'rgba(0, 0, 255, 0) 50%', '#0000FF 95%'],
        toDirection: 'to top right',
        fallback: '#FFF',
      })
 * }
 *
 * // styled-components usage
 * const div = styled.div`
 *   ${linearGradient({
        colorStops: ['#00FFFF 0%', 'rgba(0, 0, 255, 0) 50%', '#0000FF 95%'],
        toDirection: 'to top right',
        fallback: '#FFF',
      })}
 *`
 *
 * // CSS as JS Output
 *
 * div: {
 *   'backgroundColor': '#FFF',
 *   'backgroundImage': 'linear-gradient(to top right, #00FFFF 0%, rgba(0, 0, 255, 0) 50%, #0000FF 95%)',
 * }
 */
function linearGradient(_ref) {
  var colorStops = _ref.colorStops,
      fallback = _ref.fallback,
      _ref$toDirection = _ref.toDirection,
      toDirection = _ref$toDirection === void 0 ? '' : _ref$toDirection;

  if (!colorStops || colorStops.length < 2) {
    throw new _errors["default"](56);
  }

  return {
    backgroundColor: fallback || colorStops[0].replace(/,\s+/g, ',').split(' ')[0].replace(/,(?=\S)/g, ', '),
    backgroundImage: (0, _constructGradientValue["default"])(_templateObject(), toDirection, colorStops.join(', ').replace(/,(?=\S)/g, ', '))
  };
}

module.exports = exports.default;