ReactJS.NET Tutorial v1

Tutorial.jsx

/** @jsx React.DOM */
var CommentBox = React.createClass({
  loadCommentsFromServer: function() {
    var xhr = new XMLHttpRequest();
    xhr.open('get', this.props.url, true);
    xhr.onload = function() {
      var data = JSON.parse(xhr.responseText);
      this.setState({ data: data });
    }.bind(this);
    xhr.send();
  },
  handleCommentSubmit: function(comment) {
    var comments = this.state.data;
    var newComments = comments.concat([comment]);
    this.setState({data: newComments});

	var data = new FormData();
	data.append('Author', comment.Author);
	data.append('Text', comment.Text);

    var xhr = new XMLHttpRequest();
    xhr.open('post', this.props.submitUrl, true);
    xhr.onload = function() {
      this.loadCommentsFromServer();
    }.bind(this);
    xhr.send(data);
  },
  getInitialState: function() {
    return {data: []};
  },
  componentWillMount: function() {
    this.loadCommentsFromServer();
    setInterval(this.loadCommentsFromServer, this.props.pollInterval);
  },
  render: function() {
    return (
      <div className="commentBox">
        <h1>Comments</h1>
        <CommentList data={this.state.data} />
        <CommentForm
          onCommentSubmit={this.handleCommentSubmit}
        />
      </div>
    );
  }
});

var CommentList = React.createClass({
  render: function() {
    var commentNodes = this.props.data.map(function (comment) {
      return <Comment author={comment.Author}>{comment.Text}</Comment>;
    });
    return (
      <div className="commentList">
        {commentNodes}
      </div>
    );
  }
});

var CommentForm = React.createClass({
  handleSubmit: function() {
    var author = this.refs.author.getDOMNode().value.trim();
    var text = this.refs.text.getDOMNode().value.trim();
    if (!text || !author) {
      return false;
    }
    this.props.onCommentSubmit({ Author: author, Text: text });
    this.refs.author.getDOMNode().value = '';
    this.refs.text.getDOMNode().value = '';
    return false;
  },
  render: function() {
    return (
      <form className="commentForm" onSubmit={this.handleSubmit}>
        <input type="text" placeholder="Your name" ref="author" />
        <input
          type="text"
          placeholder="Say something..."
          ref="text"
        />
        <input type="submit" value="Post" />
      </form>
    );
  }
});

var converter = new Showdown.converter();
var Comment = React.createClass({
  render: function() {
    var rawMarkup = converter.makeHtml(this.props.children.toString());
    return (
      <div className="comment">
        <h2 className="commentAuthor">
          {this.props.author}
        </h2>
        <span dangerouslySetInnerHTML={{__html: rawMarkup}} />
      </div>
    );
  }
});

React.renderComponent(
  <CommentBox url="/comments" submitUrl="/comments/new" pollInterval={2000} />,
  document.getElementById('content')
);