+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.graph.impl;\r
+\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public interface ObservableInputSource extends SessionContextInputSource {\r
+\r
+ /**\r
+ * This method may be invoked at any time. If the source is disposed it\r
+ * shouldn't do anything.\r
+ * \r
+ * @param listener the listener that shall be invoked when the input source\r
+ * content has changed. Previous listener will be overridden.\r
+ * <code>null</code> to remove current listener.\r
+ */\r
+ void setListener(InputSourceListener listener);\r
+\r
+}\r