| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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.browsing; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.Assert; |
| |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| class ProjectAndSourceFolderContentProvider extends JavaBrowsingContentProvider { |
| |
| ProjectAndSourceFolderContentProvider(JavaBrowsingPart browsingPart) { |
| super(false, browsingPart); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on ITreeContentProvider. |
| */ |
| @Override |
| public Object[] getChildren(Object element) { |
| if (!exists(element)) |
| return NO_CHILDREN; |
| |
| try { |
| startReadInDisplayThread(); |
| if (element instanceof IStructuredSelection) { |
| Assert.isLegal(false); |
| Object[] result= new Object[0]; |
| Class<? extends Object> clazz= null; |
| Iterator<?> iter= ((IStructuredSelection)element).iterator(); |
| while (iter.hasNext()) { |
| Object item= iter.next(); |
| if (clazz == null) |
| clazz= item.getClass(); |
| if (clazz == item.getClass()) |
| result= concatenate(result, getChildren(item)); |
| else |
| return NO_CHILDREN; |
| } |
| return result; |
| } |
| if (element instanceof IStructuredSelection) { |
| Assert.isLegal(false); |
| Object[] result= new Object[0]; |
| Iterator<?> iter= ((IStructuredSelection)element).iterator(); |
| while (iter.hasNext()) |
| result= concatenate(result, getChildren(iter.next())); |
| return result; |
| } |
| if (element instanceof IJavaProject) |
| return getPackageFragmentRoots((IJavaProject)element); |
| if (element instanceof IPackageFragmentRoot) |
| return NO_CHILDREN; |
| |
| return super.getChildren(element); |
| |
| } catch (JavaModelException e) { |
| return NO_CHILDREN; |
| } finally { |
| finishedReadInDisplayThread(); |
| } |
| } |
| |
| @Override |
| protected Object[] getPackageFragmentRoots(IJavaProject project) throws JavaModelException { |
| if (!project.getProject().isOpen()) |
| return NO_CHILDREN; |
| |
| IPackageFragmentRoot[] roots= project.getPackageFragmentRoots(); |
| List<IPackageFragmentRoot> list= new ArrayList<IPackageFragmentRoot>(roots.length); |
| // filter out package fragments that correspond to projects and |
| // replace them with the package fragments directly |
| for (int i= 0; i < roots.length; i++) { |
| IPackageFragmentRoot root= roots[i]; |
| if (!isProjectPackageFragmentRoot(root)) |
| list.add(root); |
| } |
| return list.toArray(); |
| } |
| |
| /* |
| * |
| * @see ITreeContentProvider |
| */ |
| @Override |
| public boolean hasChildren(Object element) { |
| return element instanceof IJavaProject && super.hasChildren(element); |
| } |
| } |