From 2fe91f0411feb9daa12840ca316da7977a2e5c47 Mon Sep 17 00:00:00 2001
From: lempinen <lempinen@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Thu, 28 Feb 2013 06:52:31 +0000
Subject: [PATCH] Null check for saving equations before experiment actions.
 (refs #4130)

git-svn-id: https://www.simantics.org/svn/simantics/sysdyn/trunk@26935 ac1ea38d-2e2b-0410-8846-a27921b304fc
---
 .../src/org/simantics/sysdyn/ui/utils/HandlerUtils.java     | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/utils/HandlerUtils.java b/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/utils/HandlerUtils.java
index af029760..05771fbe 100644
--- a/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/utils/HandlerUtils.java
+++ b/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/utils/HandlerUtils.java
@@ -22,6 +22,12 @@ public class HandlerUtils {
         if (event.getTrigger() instanceof Event) {
             Event trigger = (Event)event.getTrigger();
             Control focusControl = trigger.display.getFocusControl();
+            if(focusControl == null) {
+                new Exception(
+                        "Could not determine, if equation needs to be saved before action. focusControl == null")
+                .printStackTrace();
+                return;
+            }
             Composite parent = focusControl.getParent();
             
             /* Scan bottom-up if we come across an EquationTab. 
-- 
2.47.1