From 4843994cc1d99c2b51b4c6394299730d6c66e29f Mon Sep 17 00:00:00 2001
From: lempinen <lempinen@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Fri, 29 Apr 2011 06:37:12 +0000
Subject: [PATCH] Add dispose listener to make sure name listening receives the
 correct isDisposed -value

git-svn-id: https://www.simantics.org/svn/simantics/sysdyn/trunk@20670 ac1ea38d-2e2b-0410-8846-a27921b304fc
---
 .../LabelPropertyTabContributor.java          | 29 ++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/properties/LabelPropertyTabContributor.java b/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/properties/LabelPropertyTabContributor.java
index 2d9d76c6..36d6bd7a 100644
--- a/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/properties/LabelPropertyTabContributor.java
+++ b/org.simantics.sysdyn.ui/src/org/simantics/sysdyn/ui/properties/LabelPropertyTabContributor.java
@@ -1,11 +1,17 @@
 package org.simantics.sysdyn.ui.properties;
 
 import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.IWorkbenchSite;
 import org.simantics.browsing.ui.swt.PropertyTabContributorImpl;
+import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupportImpl;
 import org.simantics.db.AsyncReadGraph;
 import org.simantics.db.ReadGraph;
 import org.simantics.db.Resource;
 import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.management.ISessionContext;
 import org.simantics.db.procedure.AsyncListener;
 import org.simantics.db.request.Read;
 import org.simantics.layer0.Layer0;
@@ -15,7 +21,23 @@ import org.simantics.utils.datastructures.Callback;
 
 public abstract class LabelPropertyTabContributor extends PropertyTabContributorImpl {
 
+	private boolean isDisposed = false;
 	
+	
+	public void createControl(Composite parent, final IWorkbenchSite site, final ISessionContext context, final WidgetSupportImpl support) {
+		super.createControl(parent, site, context, support);
+		
+		// Add dispose listener to make sure name listening receives the correct isDisposed -value
+		parent.addDisposeListener(new DisposeListener() {
+			
+			@Override
+			public void widgetDisposed(DisposeEvent e) {
+				LabelPropertyTabContributor.this.dispose();
+			}
+		});
+	}
+	
+	@Override
     public void updatePartName(ISelection forSelection, final Callback<String> updateCallback) {
     	final Resource r = AdaptionUtils.adaptToSingle(forSelection, Resource.class);
     	if(r == null) {
@@ -51,7 +73,7 @@ public abstract class LabelPropertyTabContributor extends PropertyTabContributor
 
 				@Override
 				public boolean isDisposed() {
-					return false;
+					return isDisposed;
 				}
 			});
 		} catch (DatabaseException e) {
@@ -60,4 +82,9 @@ public abstract class LabelPropertyTabContributor extends PropertyTabContributor
 		}
 		
     }
+    
+    @Override
+    protected void dispose() {
+    	this.isDisposed = true;
+    }
 }
-- 
2.47.1