text: 'use strict';
  
  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 flexSpec = require('./flex-spec');
  var Declaration = require('../declaration');
  
  var FlexFlow = function (_Declaration) {
      _inherits(FlexFlow, _Declaration);
  
      function FlexFlow() {
          _classCallCheck(this, FlexFlow);
  
          return _possibleConstructorReturn(this, _Declaration.apply(this, arguments));
      }
  
      /**
       * Use two properties for 2009 spec
       */
      FlexFlow.prototype.insert = function insert(decl, prefix, prefixes) {
          var spec = void 0;
  
          var _flexSpec = flexSpec(prefix);
  
          spec = _flexSpec[0];
          prefix = _flexSpec[1];
  
          if (spec !== 2009) {
              return _Declaration.prototype.insert.call(this, decl, prefix, prefixes);
          } else {
              var values = decl.value.split(/\s+/).filter(function (i) {
                  return i !== 'wrap' && i !== 'nowrap' && 'wrap-reverse';
              });
              if (values.length === 0) {
                  return undefined;
              }
  
              var already = decl.parent.some(function (i) {
                  return i.prop === prefix + 'box-orient' || i.prop === prefix + 'box-direction';
              });
              if (already) {
                  return undefined;
              }
  
              var value = values[0];
              var orient = value.indexOf('row') !== -1 ? 'horizontal' : 'vertical';
              var dir = value.indexOf('reverse') !== -1 ? 'reverse' : 'normal';
  
              var cloned = this.clone(decl);
              cloned.prop = prefix + 'box-orient';
              cloned.value = orient;
              if (this.needCascade(decl)) {
                  cloned.raws.before = this.calcBefore(prefixes, decl, prefix);
              }
              decl.parent.insertBefore(decl, cloned);
  
              cloned = this.clone(decl);
              cloned.prop = prefix + 'box-direction';
              cloned.value = dir;
              if (this.needCascade(decl)) {
                  cloned.raws.before = this.calcBefore(prefixes, decl, prefix);
              }
              return decl.parent.insertBefore(decl, cloned);
          }
      };
  
      return FlexFlow;
  }(Declaration);
  
  Object.defineProperty(FlexFlow, 'names', {
      enumerable: true,
      writable: true,
      value: ['flex-flow', 'box-direction', 'box-orient']
  });
  
  
  module.exports = FlexFlow;