RepoResourceContentProvider.java

package org.codefaces.ui.internal.commons;

import org.codefaces.core.models.RepoResource;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;

public class RepoResourceContentProvider implements ITreeContentProvider {
	private RepoResourceContentProviderManager manager;

	@Override
	public void dispose() {
		if (manager != null) {
			manager.dispose();
		}
	}

	@Override
	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
		if (manager != null) {
			manager.dispose();
		}
		manager = new RepoResourceContentProviderManager((TreeViewer) viewer);
	}

	@Override
	public Object[] getElements(Object parent) {
		return getChildren(parent);
	}

	@Override
	public Object getParent(Object child) {
		if (child instanceof RepoResource) {
			return ((RepoResource) child).getParent();
		}
		return null;
	}

	@Override
	public Object[] getChildren(Object parent) {
		return manager.getChildren(parent);
	}

	@Override
	public boolean hasChildren(Object parent) {
		return manager.hasChildren(parent);
	}
}