Replies in the compose form

app/assets/javascripts/components/components/icon_button.jsx

@@ -0,0 +1,35 @@
+import PureRenderMixin from 'react-addons-pure-render-mixin';
+
+const IconButton = React.createClass({
+
+  propTypes: {
+    title: React.PropTypes.string.isRequired,
+    icon: React.PropTypes.string.isRequired,
+    onClick: React.PropTypes.func.isRequired,
+    size: React.PropTypes.number
+  },
+
+  getDefaultProps () {
+    return {
+      size: 18
+    };
+  },
+
+  mixins: [PureRenderMixin],
+
+  handleClick (e) {
+    e.preventDefault();
+    this.props.onClick();
+  },
+
+  render () {
+    return (
+      <a href='#' title={this.props.title} className='icon-button' onClick={this.handleClick} style={{ display: 'inline-block', fontSize: `${this.props.size}px`, width: `${this.props.size}px`, height: `${this.props.size}px`, lineHeight: `${this.props.size}px`}}>
+        <i className={`fa fa-fw fa-${this.props.icon}`}></i>
+      </a>
+    );
+  }
+
+});
+
+export default IconButton;