diff -r 14dc2103a631 -r ed1c9f64298a trace/tracebuilder/com.nokia.tracebuilder.eclipse/src/com/nokia/tracebuilder/eclipse/JFaceSourceChangeListener.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/tracebuilder/com.nokia.tracebuilder.eclipse/src/com/nokia/tracebuilder/eclipse/JFaceSourceChangeListener.java	Wed Jun 23 14:35:40 2010 +0300
@@ -0,0 +1,92 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+* Listener interface for source file changes
+*
+*/
+package com.nokia.tracebuilder.eclipse;
+
+import org.eclipse.jface.text.DocumentEvent;
+import org.eclipse.jface.text.IDocumentListener;
+
+import com.nokia.tracebuilder.engine.TraceBuilderConfiguration;
+import com.nokia.tracebuilder.engine.TraceBuilderGlobals;
+
+/**
+ * Listener interface for source file changes
+ * 
+ */
+final class JFaceSourceChangeListener implements IDocumentListener {
+
+	/**
+	 * Workbench monitor
+	 */
+	private WorkbenchEditorMonitor monitor;
+
+	/**
+	 * Source to be monitored
+	 */
+	private JFaceDocumentWrapper source;
+
+	/**
+	 * Constructor
+	 * 
+	 * @param monitor
+	 *            the workbench monitor
+	 * @param source
+	 *            the observed source
+	 */
+	JFaceSourceChangeListener(WorkbenchEditorMonitor monitor,
+			JFaceDocumentWrapper source) {
+		this.monitor = monitor;
+		this.source = source;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see org.eclipse.jface.text.IDocumentListener#
+	 *      documentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent)
+	 */
+	public void documentAboutToBeChanged(DocumentEvent event) {
+		try {
+			monitor.sourceAboutToBeChanged(source, event.getOffset(), event
+					.getLength(), event.getText());
+		} catch (Exception e) {
+			if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {
+				TraceBuilderGlobals.getEvents().postCriticalAssertionFailed(
+						"Document change preprocessor failure", e); //$NON-NLS-1$
+			}
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see org.eclipse.jface.text.IDocumentListener#
+	 *      documentChanged(org.eclipse.jface.text.DocumentEvent)
+	 */
+	public void documentChanged(DocumentEvent event) {
+		try {
+			monitor.sourceChanged(source, event.getOffset(), event.getLength(),
+					event.getText());
+		} catch (Exception e) {
+			if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {
+				TraceBuilderGlobals.getEvents().postCriticalAssertionFailed(
+						"Document change processor failure", e); //$NON-NLS-1$
+			}
+		}
+	}
+}