| /******************************************************************************* |
| * Copyright (c) 2000, 2017 IBM Corporation 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 |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.ui.filters; |
| |
| import org.eclipse.dltk.core.IScriptFolder; |
| import org.eclipse.dltk.core.ModelException; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| |
| /** |
| * filters out all empty package fragments. |
| */ |
| public class EmptyPackageFilter extends ViewerFilter { |
| |
| /** |
| * Returns the result of this filter, when applied to the |
| * given inputs. |
| * |
| * @return Returns true if element should be included in filtered set |
| */ |
| @Override |
| public boolean select(Viewer viewer, Object parent, Object element) { |
| if (element instanceof IScriptFolder) { |
| IScriptFolder pkg= (IScriptFolder)element; |
| try { |
| Object[] foreignResources = pkg.getForeignResources(); |
| boolean hasForeign = false; |
| if( foreignResources != null ) { |
| hasForeign = foreignResources.length > 0; |
| } |
| return pkg.hasChildren() || hasForeign; |
| } catch (ModelException e) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| |
| } |