/*******************************************************************************
* Copyright (C) 2010, 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
*
* Contributors:
* Mathias Kinzler <mathias.kinzler@sap.com>
* Laurent Goubet <laurent.goubet@obeo.fr>
* Gunnar Wagenknecht <gunnar@wagenknecht.org>
*******************************************************************************/
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.dialogs.CompareTargetSelectionDialog;
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 ref" 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 CompareWithRefActionHandler extends RepositoryActionHandler {
public Object execute(ExecutionEvent event) throws ExecutionException {
final Repository repo = getRepository(true, event);
// assert all resources map to the same repository
if (repo == null)
return null;
final IResource[] resources = getSelectedResources(event);
CompareTargetSelectionDialog dlg = new CompareTargetSelectionDialog(
getShell(event), repo, resources.length == 1 ? resources[0]
.getFullPath().lastSegment() : null);
if (dlg.open() != Window.OK)
return null;
final String refName = dlg.getRefName();
IWorkbenchPage workBenchPage = PlatformUI.getWorkbench()
.getActiveWorkbenchWindow().getActivePage();
try {
CompareUtils
.compare(resources, repo, Constants.HEAD, refName, true, workBenchPage);
} catch (IOException e) {
Activator.handleError(
UIText.CompareWithRefAction_errorOnSynchronize, e, true);
}
return null;
}
@Override
public boolean isEnabled() {
return selectionMapsToSingleRepository();
}
}