/*******************************************************************************
* Copyright (C) 2011, 2013 Mathias Kinzler <mathias.kinzler@sap.com> 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
*******************************************************************************/
package org.eclipse.egit.ui.internal.actions;
import java.io.IOException;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IResource;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.internal.CompareUtils;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.history.CommitSelectionDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
/**
* The "compare with commit" action. This action opens a diff editor comparing
* the file as found in the working directory and the version in the selected
* ref.
*/
public class CompareWithCommitActionHandler extends RepositoryActionHandler {
public Object execute(ExecutionEvent event) throws ExecutionException {
final Repository repo = getRepository(true, event);
if (repo == null)
return null;
IResource[] resources = getSelectedResources(event);
CommitSelectionDialog dlg = new CommitSelectionDialog(getShell(event),
repo, resources);
if (dlg.open() != Window.OK)
return null;
final String commitId = dlg.getCommitId().getName();
IWorkbenchPage workBenchPage = PlatformUI.getWorkbench()
.getActiveWorkbenchWindow().getActivePage();
try {
CompareUtils.compare(resources, repo, Constants.HEAD, commitId,
true, workBenchPage);
} catch (IOException e) {
Activator.handleError(
UIText.CompareWithRefAction_errorOnSynchronize, e, true);
}
return null;
}
@Override
public boolean isEnabled() {
return selectionMapsToSingleRepository();
}
}