--- /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.scenegraph.ui;\r
+\r
+import org.eclipse.core.commands.AbstractHandler;\r
+import org.eclipse.core.commands.ExecutionEvent;\r
+import org.eclipse.core.commands.ExecutionException;\r
+import org.eclipse.ui.IWorkbenchPart;\r
+import org.eclipse.ui.handlers.HandlerUtil;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class CollapseAllHandler extends AbstractHandler {\r
+\r
+ @Override\r
+ public Object execute(ExecutionEvent event) throws ExecutionException {\r
+ IWorkbenchPart part = HandlerUtil.getActivePart(event);\r
+ if (part == null || !(part instanceof SceneGraphViewPart))\r
+ return null;\r
+\r
+ SceneGraphViewPart sg = (SceneGraphViewPart) part;\r
+ sg.collapseAll();\r
+\r
+ return null;\r
+ }\r
+\r
+}\r