content: import React from 'react';
  
  var { object } = React.PropTypes;
  
  /**
   * A mixin for components that need to know the path, routes, URL
   * params and query that are currently active.
   *
   * Example:
   *
   *   import { State } from 'react-router';
   *
   *   var AboutLink = React.createClass({
   *     mixins: [ State ],
   *     render() {
   *       var className = this.props.className;
   *
   *       if (this.isActive('/about'))
   *         className += ' is-active';
   *
   *       return React.createElement('a', { className }, this.props.children);
   *     }
   *   });
   */
  var State = {
  
    contextTypes: {
      router: object.isRequired
    }
  
  };
  
  var RouterStateMethods = [
    'isActive'
  ];
  
  RouterStateMethods.forEach(function (method) {
    State[method] = function () {
      var router = this.context.router;
      return router[method].apply(router, arguments);
    };
  });
  
  export default State;
  