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Fixed all line endings of the repository
[simantics/platform.git] / bundles / org.simantics.browsing.ui.common / src / org / simantics / browsing / ui / common / actions / CollapseSelected.java
1 /*******************************************************************************
2  * Copyright (c) 2016 Association for Decentralized Information Management
3  * in Industry THTH ry.
4  * All rights reserved. This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License v1.0
6  * which accompanies this distribution, and is available at
7  * http://www.eclipse.org/legal/epl-v10.html
8  *
9  * Contributors:
10  *     Semantum Oy - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.browsing.ui.common.actions;
13
14 import java.util.Set;
15
16 import org.eclipse.core.commands.AbstractHandler;
17 import org.eclipse.core.commands.ExecutionEvent;
18 import org.eclipse.core.commands.ExecutionException;
19 import org.eclipse.ui.handlers.HandlerUtil;
20 import org.simantics.browsing.ui.GraphExplorer;
21 import org.simantics.browsing.ui.NodeContext;
22 import org.simantics.browsing.ui.common.NodeContextUtil;
23 import org.simantics.utils.ui.ISelectionUtils;
24
25 /**
26  * @author Tuukka Lehtonen
27  * @since 1.24.0
28  */
29 public class CollapseSelected extends AbstractHandler {
30
31     @Override
32     public Object execute(ExecutionEvent event) throws ExecutionException {
33         GraphExplorer explorer = HandlerUtil.getActivePart(event).getAdapter(GraphExplorer.class);
34         if (explorer == null)
35             return null;
36         Set<NodeContext> nodes = ISelectionUtils.filterSetSelection(HandlerUtil.getCurrentSelection(event), NodeContext.class);
37         if (nodes.isEmpty())
38             return null;
39         NodeContextUtil.collapseNodesUnder(explorer, nodes);
40         return null;
41     }
42
43 }