01: /*******************************************************************************
02: * Copyright (c) 2000, 2005 IBM Corporation and others.
03: * All rights reserved. This program and the accompanying materials
04: * are made available under the terms of the Eclipse Public License v1.0
05: * which accompanies this distribution, and is available at
06: * http://www.eclipse.org/legal/epl-v10.html
07: *
08: * Contributors:
09: * IBM Corporation - initial API and implementation
10: *******************************************************************************/package org.eclipse.jdt.internal.ui.jarpackager;
11:
12: import java.util.List;
13:
14: import org.eclipse.jface.viewers.Viewer;
15: import org.eclipse.jface.viewers.ViewerFilter;
16:
17: import org.eclipse.jdt.core.IJavaElement;
18:
19: /**
20: * Only selects packages (i.e. IPackageFragments) which are in
21: * the initial packages list and parent types (i.e. package fragment
22: * root, Java project and Java model)
23: */
24: class SealPackagesFilter extends ViewerFilter {
25:
26: private List fAllowedPackages;
27:
28: public SealPackagesFilter(List packages) {
29: fAllowedPackages = packages;
30: }
31:
32: /* (non-Javadoc)
33: * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
34: */
35: public boolean select(Viewer viewer, Object parent, Object element) {
36: if (element instanceof IJavaElement) {
37: int type = ((IJavaElement) element).getElementType();
38: if (type == IJavaElement.JAVA_MODEL
39: || type == IJavaElement.JAVA_PROJECT
40: || type == IJavaElement.PACKAGE_FRAGMENT_ROOT)
41: return true;
42: return (type == IJavaElement.PACKAGE_FRAGMENT && fAllowedPackages
43: .contains(element));
44:
45: } else
46: return false;
47: }
48: }
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