/*******************************************************************************
 * Copyright (C) 2011, Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2010, Matthias Sohn <matthias.sohn@sap.com>
 *
 * 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
 *******************************************************************************/
package org.eclipse.egit.ui.internal.actions;

import java.util.Arrays;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IResource;
import org.eclipse.egit.core.internal.job.JobUtil;
import org.eclipse.egit.core.op.AssumeUnchangedOperation;
import org.eclipse.egit.ui.JobFamilies;
import org.eclipse.egit.ui.internal.UIText;

/**
 * This operation unsets the assume-valid bit in the index for the selected
 * resources.
 *
 * @see AssumeUnchangedOperation
 */
public class NoAssumeUnchangedActionHandler extends RepositoryActionHandler {
	public Object execute(ExecutionEvent event) throws ExecutionException {
		IResource[] resources = getSelectedResources(event);
		if (resources.length == 0)
			return null;
		AssumeUnchangedOperation op = new AssumeUnchangedOperation(Arrays
				.asList(resources), false);
		JobUtil.scheduleUserJob(op, UIText.AssumeUnchanged_assumeUnchanged,
				JobFamilies.ASSUME_NOASSUME_UNCHANGED);
		return null;
	}
}
