| /******************************************************************************* |
| * Copyright (c) 2010 Tasktop Technologies and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.ui.views; |
| |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.mylyn.internal.tasks.core.Category; |
| |
| /** |
| * @author Robert Elves |
| */ |
| public class EmptyCategoriesFilter extends ViewerFilter { |
| |
| private final TaskRepositoriesContentProvider provider; |
| |
| public EmptyCategoriesFilter(TaskRepositoriesContentProvider provider) { |
| this.provider = provider; |
| } |
| |
| @Override |
| public boolean select(Viewer viewer, Object parentElement, Object element) { |
| if (element instanceof Category) { |
| return provider.getChildren(element).length > 0; |
| } |
| return true; |
| } |
| } |