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/*******************************************************************************
* Copyright (c) 2003, 2005 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.debug.internal.ui.sourcelookup;
import java.util.ArrayList;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
/**
* Provides content for a tree viewer that shows only containers.
*
* @since 3.0
*/
public class BasicContainerContentProvider implements ITreeContentProvider {
private boolean fShowClosedProjects = true;
/**
* Creates a new ResourceContentProvider.
*/
public BasicContainerContentProvider() {
}
/**
* The visual part that is using this content provider is about
* to be disposed. Deallocate all allocated SWT resources.
*/
public void dispose() {
}
/**
* @see ITreeContentProvider#getChildren
*/
public Object[] getChildren(Object element) {
if (element instanceof IWorkspaceRoot) {
// check if closed projects should be shown
IProject[] allProjects = ((IWorkspaceRoot) element).getProjects();
if (fShowClosedProjects)
return allProjects;
ArrayList accessibleProjects = new ArrayList();
for (int i = 0; i < allProjects.length; i++) {
if (allProjects[i].isOpen()) {
accessibleProjects.add(allProjects[i]);
}
}
return accessibleProjects.toArray();
}
return new Object[0];
}
/**
* @see ITreeContentProvider#getElements
*/
public Object[] getElements(Object element) {
return getChildren(element);
}
/**
* @see ITreeContentProvider#getParent
*/
public Object getParent(Object element) {
if (element instanceof IResource)
return ((IResource) element).getParent();
return null;
}
/**
* @see ITreeContentProvider#hasChildren
*/
public boolean hasChildren(Object element) {
return getChildren(element).length > 0;
}
/**
* @see IContentProvider#inputChanged
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
}
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