From 078e422faa2923f72057c66c7ed5cc52f35fb8e9 Mon Sep 17 00:00:00 2001
From: Thomas Geymayer <tomgey@gmail.com>
Date: Sat, 27 Jul 2013 22:22:38 +0200
Subject: [PATCH] Canvas GUI: check if canvas is valid on resize.

---
 Nasal/canvas/gui.nas | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Nasal/canvas/gui.nas b/Nasal/canvas/gui.nas
index 730ffe4c6..12d17dda8 100644
--- a/Nasal/canvas/gui.nas
+++ b/Nasal/canvas/gui.nas
@@ -208,6 +208,9 @@ var Window = {
   },
   onResize: func()
   {
+    if( me['_canvas'] == nil )
+      return;
+
     for(var i = 0; i < 2; i += 1)
     {
       var size = me.get("content-size[" ~ i ~ "]");