| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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.pde.internal.ui.views.dependencies; |
| |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.osgi.service.resolver.BundleDescription; |
| import org.eclipse.pde.core.plugin.IPluginBase; |
| import org.eclipse.pde.core.plugin.IPluginModelBase; |
| |
| public class CallersTreeContentProvider extends CallersContentProvider implements ITreeContentProvider { |
| |
| /** |
| * Constructor. |
| */ |
| public CallersTreeContentProvider(DependenciesView view) { |
| super(view); |
| } |
| |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement instanceof IPluginBase) { |
| parentElement = ((IPluginBase) parentElement).getModel(); |
| } |
| if (parentElement instanceof IPluginModelBase) { |
| parentElement = ((IPluginModelBase) parentElement).getBundleDescription(); |
| } |
| if (parentElement instanceof BundleDescription) { |
| return findReferences((BundleDescription) parentElement).toArray(); |
| } |
| return new Object[0]; |
| } |
| |
| /** |
| * @see IStructuredContentProvider#getElements(Object) |
| * @return Object[] with 0 or 1 IPluginBase |
| */ |
| public Object[] getElements(Object inputElement) { |
| if (inputElement instanceof IPluginModelBase) { |
| return new Object[] {((IPluginModelBase) inputElement).getPluginBase()}; |
| } |
| return new Object[0]; |
| } |
| |
| /** |
| * @see ITreeContentProvider#getParent(Object) |
| */ |
| public Object getParent(Object element) { |
| return null; |
| } |
| |
| /** |
| * @see ITreeContentProvider#hasChildren(Object) |
| */ |
| public boolean hasChildren(Object element) { |
| return getChildren(element).length > 0; |
| } |
| |
| } |