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Java > Open Source Codes > org > apache > directory > ldapstudio > schemas > controller > 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 package org.apache.directory.ldapstudio.schemas.controller.actions;
21
22
23 import org.apache.directory.ldapstudio.schemas.Activator;
24 import org.apache.directory.ldapstudio.schemas.Messages;
25 import org.apache.directory.ldapstudio.schemas.PluginConstants;
26 import org.eclipse.jface.action.Action;
27 import org.eclipse.jface.viewers.TreeViewer;
28 import org.eclipse.ui.plugin.AbstractUIPlugin;
29
30
31 /**
32  * This action collapses all nodes of the viewer's tree, starting from the root.
33  *
34  * @author <a HREF="mailto:dev@directory.apache.org">Apache Directory Project</a>
35  * @version $Rev$, $Date$
36  */
37 public class CollapseAllAction extends Action
38 {
39     protected TreeViewer viewer;
40
41
42     /**
43      * Creates a new instance of CollapseAllAction.
44      *
45      * @param viewer
46      * the attached Viewer
47      */
48     public CollapseAllAction( TreeViewer viewer )
49     {
50         super( Messages.getString( "CollapseAllAction.Collapse_All" ) ); //$NON-NLS-1$
51 setToolTipText( getText() );
52         setId( PluginConstants.CMD_COLLAPSE_ALL );
53         setImageDescriptor( AbstractUIPlugin.imageDescriptorFromPlugin( Activator.PLUGIN_ID,
54             PluginConstants.IMG_COLLAPSE_ALL ) );
55         setEnabled( true );
56
57         this.viewer = viewer;
58     }
59
60
61     /**
62      * {@inheritDoc}
63      */
64     public void run()
65     {
66         this.viewer.collapseAll();
67     }
68
69
70     /**
71      * Disposes the action delegate.
72      */
73     public void dispose()
74     {
75         this.viewer = null;
76     }
77 }
78
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