From 87e895eebdf619a04b8bb355d604479f041d4adf Mon Sep 17 00:00:00 2001
From: Cedric GESTES <cedric.gestes@gmail.com>
Date: Wed, 20 May 2015 08:46:20 +0200
Subject: [PATCH] toolbar: fix for empty toolbar

---
 src/toolbar/toolbar.jsx | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/toolbar/toolbar.jsx b/src/toolbar/toolbar.jsx
index a981644a490e01..4d5c1c7ade75bc 100644
--- a/src/toolbar/toolbar.jsx
+++ b/src/toolbar/toolbar.jsx
@@ -30,11 +30,12 @@ var Toolbar = React.createClass({
 
   render: function() {
 
-    var firstChild = this.props.children[0];
-    var lastChild = this.props.children[this.props.children.length - 1];
-    if (firstChild.type.displayName === 'ToolbarGroup') firstChild = React.cloneElement(firstChild, {firstChild: true});
-    if (lastChild.type.displayName === 'ToolbarGroup') lastChild = React.cloneElement(lastChild, {lastChild: true});
-
+    if (React.Children.count > 0) {
+      var firstChild = this.props.children[0];
+      var lastChild = this.props.children[this.props.children.length - 1];
+      if (firstChild.type.displayName === 'ToolbarGroup') firstChild = React.cloneElement(firstChild, {firstChild: true});
+      if (lastChild.type.displayName === 'ToolbarGroup') lastChild = React.cloneElement(lastChild, {lastChild: true});
+    }
     return (
       <div className={this.props.className} style={this.getStyles()}>
         {this.props.children}