http://stackoverflow.com/questions/25331732/reactjs-have-a-main-component-that-doesnt-own-its-children/25335645#25335645; A turn-based, strategy game in JavaScript http://games.lqbs.fr/reach/; https://github.com/AdrianGaudebert/reach/blob/master/js/player.js

gistfile1.java

var EventEmitter = require('events').EventEmitter;
var fooEvents = new EventEmitter();

var Counter = React.createClass(){
    mixins: [makeChangeEventMixin(fooEvents)],
    getInitialState: function(){ return {count: 0} },
    render: function(){return <div onClick={this.handleClick}>{this.state.count}</div>},
    handleClick: function(){
        this.emitStateChange({count: this.state.count + 1});
    }
};

reach.js

var makeChangeEventMixin = function(emitter){
   return {
       componentDidMount: function(){
           emitter.addListener('change', this.__makeChangeEventMixin_handler_);
       },
       componentWillUnmount: function(){
           emitter.removeListener('change', this.__makeChangeEventMixin_handler_);
       },
       __makeChangeEventMixin_handler_: function(payload){
           this.setState(payload);
       },
       emitStateChange: function(payload){
           emitter.emit('change', payload);
       }
   };
};