kitchensink/examples/node_modules/radium/lib/prefixer.js

Dispatch's awesome components and style guide

'use strict';

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

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; }; /**
                                                                                                                                                                                                                                                   * Based on https://github.com/jsstyles/css-vendor, but without having to
                                                                                                                                                                                                                                                   * convert between different cases all the time.
                                                                                                                                                                                                                                                   *
                                                                                                                                                                                                                                                   * 
                                                                                                                                                                                                                                                   */

exports.getPrefixedKeyframes = getPrefixedKeyframes;
exports.getPrefixedStyle = getPrefixedStyle;

var _inlineStylePrefixer = require('inline-style-prefixer');

var _inlineStylePrefixer2 = _interopRequireDefault(_inlineStylePrefixer);

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

function transformValues(style) {
  return Object.keys(style).reduce(function (newStyle, key) {
    var value = style[key];
    if (Array.isArray(value)) {
      value = value.join(';' + key + ':');
    } else if (value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && typeof value.toString === 'function') {
      value = value.toString();
    }

    newStyle[key] = value;
    return newStyle;
  }, {});
}

var _hasWarnedAboutUserAgent = false;
var _lastUserAgent = void 0;
var _cachedPrefixer = void 0;

function getPrefixer(userAgent) {
  var actualUserAgent = userAgent || global && global.navigator && global.navigator.userAgent;

  if (process.env.NODE_ENV !== 'production') {
    if (!actualUserAgent && !_hasWarnedAboutUserAgent) {
      /* eslint-disable no-console */
      console.warn('Radium: userAgent should be supplied for server-side rendering. See ' + 'https://github.com/FormidableLabs/radium/tree/master/docs/api#radium ' + 'for more information.');
      /* eslint-enable no-console */
      _hasWarnedAboutUserAgent = true;
    }
  }

  if (!_cachedPrefixer || actualUserAgent !== _lastUserAgent) {
    if (actualUserAgent === 'all') {
      _cachedPrefixer = {
        prefix: _inlineStylePrefixer2.default.prefixAll,
        prefixedKeyframes: 'keyframes'
      };
    } else {
      _cachedPrefixer = new _inlineStylePrefixer2.default({ userAgent: actualUserAgent });
    }
    _lastUserAgent = actualUserAgent;
  }
  return _cachedPrefixer;
}

function getPrefixedKeyframes(userAgent) {
  return getPrefixer(userAgent).prefixedKeyframes;
}

// Returns a new style object with vendor prefixes added to property names
// and values.
function getPrefixedStyle(style, userAgent) {
  var styleWithFallbacks = transformValues(style);
  var prefixer = getPrefixer(userAgent);
  var prefixedStyle = prefixer.prefix(styleWithFallbacks);
  return prefixedStyle;
}