--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 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;\r
+\r
+/**\r
+ * A basic SelectionFilter implementation that filters NodeContexts into the\r
+ * input objects contained by the contexts.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ * \r
+ * @see GraphExplorer#setSelectionFilter(SelectionFilter)\r
+ */\r
+public class InputSelectionFilter implements SelectionFilter {\r
+\r
+ public static final InputSelectionFilter INSTANCE = new InputSelectionFilter();\r
+\r
+ @Override\r
+ public Object filter(NodeContext context) {\r
+ return context.getConstant(BuiltinKeys.INPUT);\r
+ }\r
+\r
+}\r