content: /*******************************************************************************
   * Copyright (c) 2000, 2008 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.wst.jsdt.internal.ui.filters;
  
  import org.eclipse.core.resources.IProject;
  import org.eclipse.core.resources.IResource;
  import org.eclipse.jface.viewers.Viewer;
  import org.eclipse.jface.viewers.ViewerFilter;
  import org.eclipse.wst.jsdt.core.IPackageFragmentRoot;
  
  
  /**
   * The LibraryFilter is a filter used to determine whether
   * a Java internal library is shown
   */
  public class ContainedLibraryFilter extends ViewerFilter {
  	
  	/* (non-Javadoc)
  	 * Method declared on ViewerFilter.
  	 */
  	public boolean select(Viewer viewer, Object parentElement, Object element) {
  		if (element instanceof IPackageFragmentRoot) {
  			IPackageFragmentRoot root= (IPackageFragmentRoot)element;
  			if (root.isArchive()) {
  				// don't filter out JARs contained in the project itself
  				IResource resource= root.getResource();
  				if (resource != null) {
  					IProject jarProject= resource.getProject();
  					IProject container= root.getJavaScriptProject().getProject();
  					return !container.equals(jarProject);
  				}
  			}
  		}
  		return true;
  	}
  }
  