| /******************************************************************************* |
| * Copyright (c) 2008, 2011 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.filters; |
| |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| |
| import org.eclipse.jdt.internal.ui.packageview.PackageFragmentRootContainer; |
| import org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer; |
| |
| /** |
| * The library container filter is a filter used to determine whether |
| * library containers are shown that are empty or have all children filtered out by other filters. |
| * The filter is only applicable on a {@link ProblemTreeViewer} |
| */ |
| public class EmptyLibraryContainerFilter extends ViewerFilter { |
| |
| /* (non-Javadoc) |
| * Method declared on ViewerFilter. |
| */ |
| @Override |
| public boolean select(Viewer viewer, Object parentElement, Object element) { |
| if (element instanceof PackageFragmentRootContainer && viewer instanceof ProblemTreeViewer) { |
| return ((ProblemTreeViewer) viewer).hasFilteredChildren(element); |
| } |
| return true; |
| } |
| } |
