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1 | /******************************************************************************* |
2 | * Copyright (c) 2000, 2012 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.jdt.internal.ui.filters; | |
12 | ||
13 | ||
14 | import org.eclipse.jface.viewers.Viewer; | |
15 | import org.eclipse.jface.viewers.ViewerFilter; | |
16 | ||
17 | import org.eclipse.jdt.core.IPackageFragment; | |
18 | import org.eclipse.jdt.core.JavaModelException; | |
19 | ||
20 | ||
21 | /** | |
22 | * Filters empty non-leaf package fragments | |
23 | */ | |
24 | public class EmptyInnerPackageFilter extends ViewerFilter { | |
25 | ||
26 | /* | |
27 | * @see ViewerFilter | |
28 | */ | |
29 | @Override | |
30 | public boolean select(Viewer viewer, Object parent, Object element) { | |
31 | if (element instanceof IPackageFragment) { | |
32 | IPackageFragment pkg= (IPackageFragment)element; | |
33 | try { | |
34 | if (pkg.isDefaultPackage()) | |
35 | return pkg.hasChildren(); | |
36 | return !pkg.hasSubpackages() || pkg.hasChildren() || EmptyPackageFilter.hasUnfilteredResources(viewer, pkg); | |
37 | } catch (JavaModelException e) { | |
38 | return false; | |
39 | } | |
40 | } | |
41 | ||
42 | return true; | |
43 | } | |
44 | } |