/*******************************************************************************
* Copyright Technophobia Ltd 2012
*
* This file is part of the Substeps Eclipse Plugin.
*
* The Substeps Eclipse Plugin is free software: you can redistribute it and/or modify
* it under the terms of the Eclipse Public License v1.0.
*
* The Substeps Eclipse Plugin is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Eclipse Public License for more details.
*
* You should have received a copy of the Eclipse Public License
* along with the Substeps Eclipse Plugin. If not, see <http://www.eclipse.org/legal/epl-v10.html>.
******************************************************************************/
package com.technophobia.eclipse.transformer;
import org.eclipse.core.resources.IFolder;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import com.technophobia.substeps.supplier.Transformer;
public class SelectionToFolderOrNullTransformer implements Transformer<ISelection, IFolder> {
@Override
public IFolder from(final ISelection selection) {
if (selection instanceof IStructuredSelection) {
final IStructuredSelection structuredSelection = (IStructuredSelection) selection;
if (structuredSelection.size() == 1) {
final Object element = structuredSelection.getFirstElement();
if (element instanceof IFolder) {
return (IFolder) element;
}
}
}
return null;
}
}