| /******************************************************************************* |
| * Copyright (c) 2005, 2006 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.model; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.core.resources.IFolder; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringDescriptorProxy; |
| import org.eclipse.ltk.core.refactoring.history.RefactoringHistory; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaProject; |
| |
| import org.eclipse.jdt.ui.StandardJavaElementContentProvider; |
| |
| /** |
| * Content provider for Java models. |
| * |
| * @since 3.2 |
| */ |
| public final class JavaModelContentProvider extends StandardJavaElementContentProvider { |
| |
| /** The name of the settings folder */ |
| private static final String NAME_SETTINGS_FOLDER= ".settings"; //$NON-NLS-1$ |
| |
| /** |
| * Creates a new java model content provider. |
| */ |
| public JavaModelContentProvider() { |
| super(true); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object[] getChildren(final Object element) { |
| if (element instanceof ICompilationUnit) |
| return NO_CHILDREN; |
| else if (element instanceof RefactoringHistory) |
| return ((RefactoringHistory) element).getDescriptors(); |
| else if (element instanceof IJavaProject) { |
| final List elements= new ArrayList(); |
| elements.add(((IJavaProject) element).getProject().getFolder(NAME_SETTINGS_FOLDER)); |
| final Object[] children= super.getChildren(element); |
| for (int index= 0; index < children.length; index++) { |
| if (!elements.contains(children[index])) |
| elements.add(children[index]); |
| } |
| return elements.toArray(); |
| } else if (element instanceof IFolder) { |
| final IFolder folder= (IFolder) element; |
| try { |
| return folder.members(); |
| } catch (CoreException exception) { |
| // Do nothing |
| } |
| } |
| return super.getChildren(element); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean hasChildren(final Object element) { |
| if (element instanceof ICompilationUnit) |
| return false; |
| else if (element instanceof RefactoringHistory) |
| return true; |
| else if (element instanceof RefactoringDescriptorProxy) |
| return false; |
| else if (element instanceof IFolder) |
| return true; |
| return super.hasChildren(element); |
| } |
| } |