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Java > Open Source Codes > org > eclipse > ui > internal > activities > ws > ActivityViewerFilter


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.activities.ws;
12
13 import org.eclipse.jface.viewers.Viewer;
14 import org.eclipse.jface.viewers.ViewerFilter;
15 import org.eclipse.ui.activities.WorkbenchActivityHelper;
16
17 /**
18  * Generic viewer filter that works based on activity enablement.
19  *
20  * @since 3.0
21  */
22 public class ActivityViewerFilter extends ViewerFilter {
23
24     private boolean hasEncounteredFilteredItem = false;
25
26     /* (non-Javadoc)
27      * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
28      */
29     public boolean select(Viewer viewer, Object JavaDoc parentElement, Object JavaDoc element) {
30         if (WorkbenchActivityHelper.filterItem(element)) {
31             setHasEncounteredFilteredItem(true);
32             return false;
33         }
34         return true;
35     }
36
37     /**
38      * @return returns whether the filter has filtered an item
39      */
40     public boolean getHasEncounteredFilteredItem() {
41         return hasEncounteredFilteredItem;
42     }
43
44     /**
45      * @param sets whether the filter has filtered an item
46      */
47     public void setHasEncounteredFilteredItem(boolean hasEncounteredFilteredItem) {
48         this.hasEncounteredFilteredItem = hasEncounteredFilteredItem;
49     }
50 }
51
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