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Java > Open Source Codes > org > apache > directory > ldapstudio > browser > common > actions > CollapseAllAction


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one
3  * or more contributor license agreements. See the NOTICE file
4  * distributed with this work for additional information
5  * regarding copyright ownership. The ASF licenses this file
6  * to you under the Apache License, Version 2.0 (the
7  * "License"); you may not use this file except in compliance
8  * with the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing,
13  * software distributed under the License is distributed on an
14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15  * KIND, either express or implied. See the License for the
16  * specific language governing permissions and limitations
17  * under the License.
18  *
19  */
20
21 package org.apache.directory.ldapstudio.browser.common.actions;
22
23
24 import org.apache.directory.ldapstudio.browser.common.BrowserCommonActivator;
25 import org.apache.directory.ldapstudio.browser.common.BrowserCommonConstants;
26 import org.eclipse.jface.action.Action;
27 import org.eclipse.jface.viewers.TreeViewer;
28
29
30 /**
31  * This action collapses all nodes of the viewer's tree, starting with the root.
32  *
33  * @author <a HREF="mailto:dev@directory.apache.org">Apache Directory Project</a>
34  * @version $Rev$, $Date$
35  */
36 public class CollapseAllAction extends Action
37 {
38     protected TreeViewer viewer;
39
40
41     /**
42      * Creates a new instance of CollapseAllAction.
43      *
44      * @param viewer
45      * the attached Viewer
46      */
47     public CollapseAllAction( TreeViewer viewer )
48     {
49         super( "Collapse All", BrowserCommonActivator.getDefault().getImageDescriptor( BrowserCommonConstants.IMG_COLLAPSEALL ) );
50         super.setToolTipText( getText() );
51         super.setEnabled( true );
52
53         this.viewer = viewer;
54     }
55
56
57     /**
58      * {@inheritDoc}
59      */
60     public void run()
61     {
62         this.viewer.collapseAll();
63     }
64
65
66     /**
67      * Disposes the action delegate.
68      */
69     public void dispose()
70     {
71         this.viewer = null;
72     }
73 }
74
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