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Java > Open Source Codes > org > eclipse > ui > internal > presentations > UpdatingActionContributionItem


1 /*******************************************************************************
2  * Copyright (c) 2004, 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.ui.internal.presentations;
12
13 import org.eclipse.jface.action.ActionContributionItem;
14
15 /**
16  * @since 3.0
17  */
18 public class UpdatingActionContributionItem extends ActionContributionItem {
19
20     /**
21      * @param action
22      */
23     public UpdatingActionContributionItem(ISelfUpdatingAction action) {
24         super(action);
25     }
26
27     /* (non-Javadoc)
28      * @see org.eclipse.jface.action.IContributionItem#isVisible()
29      */
30     public boolean isVisible() {
31         ISelfUpdatingAction action = (ISelfUpdatingAction) getAction();
32         return super.isVisible() && action.shouldBeVisible();
33     }
34
35     /* (non-Javadoc)
36      * @see org.eclipse.jface.action.IContributionItem#update(java.lang.String)
37      */
38     public void update(String JavaDoc propertyName) {
39         ISelfUpdatingAction action = (ISelfUpdatingAction) getAction();
40         action.update();
41
42         super.update(propertyName);
43     }
44
45     /* (non-Javadoc)
46      * @see org.eclipse.jface.action.IContributionItem#isDynamic()
47      */
48     public boolean isDynamic() {
49         return true;
50     }
51 }
52
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