--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/text/undo/IDocumentUndoListener.d	Sat Aug 23 19:10:48 2008 +0200
@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module dwtx.text.undo.IDocumentUndoListener;
+
+import dwt.dwthelper.utils;
+
+
+/**
+ * This interface is used to listen to notifications from a DocumentUndoManager.
+ * The supplied DocumentUndoEvent describes the particular notification.
+ * <p>
+ * Document undo listeners must be prepared to receive notifications from a
+ * background thread. Any UI access occurring inside the implementation must be
+ * properly synchronized using the techniques specified by the client's widget
+ * library.</p>
+ * <p>
+ * Clients may implement this interface.
+ * </p>
+ * 
+ * @since 3.2
+ */
+public interface IDocumentUndoListener {
+    
+    /**
+     * The document is involved in an undo-related change.  Notify listeners 
+     * with an event describing the change.
+     * 
+     * @param event the document undo event that describes the particular notification
+     */
+    void documentUndoNotification(DocumentUndoEvent event);
+
+}