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/*******************************************************************************
* Copyright (c) 2005, 2006 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ccvs.ui.mappings;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.resources.mapping.ResourceMapping;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.team.core.diff.*;
import org.eclipse.team.core.mapping.IMergeContext;
import org.eclipse.team.core.mapping.ISynchronizationContext;
import org.eclipse.team.internal.ccvs.ui.CVSUIMessages;
import org.eclipse.team.internal.ccvs.ui.CVSUIPlugin;
import org.eclipse.ui.IWorkbenchPart;
public class ModelReplaceOperation extends ModelUpdateOperation {
boolean hasPrompted = false;
public ModelReplaceOperation(IWorkbenchPart part, ResourceMapping[] selectedMappings, boolean consultModels) {
super(part, selectedMappings, consultModels);
}
@Override
protected String getJobName() {
return CVSUIMessages.ReplaceOperation_taskName;
}
@Override
protected boolean isAttemptHeadlessMerge() {
return true;
}
@Override
protected boolean hasChangesOfInterest() {
IMergeContext context = (IMergeContext)getContext();
return !context.getDiffTree().isEmpty();
}
@Override
protected int getMergeType() {
return ISynchronizationContext.TWO_WAY;
}
@Override
protected IStatus performMerge(IProgressMonitor monitor) throws CoreException {
if (!hasLocalChanges() || promptForOverwrite()) {
return super.performMerge(monitor);
}
return new Status(IStatus.ERROR, CVSUIPlugin.ID, REQUEST_PREVIEW, "", null); //$NON-NLS-1$
}
/*
* Mde porotected to be overriden by test cases.
*/
protected boolean promptForOverwrite() {
if (hasPrompted)
return true;
final int[] result = new int[] { 1 };
Display.getDefault().syncExec(() -> {
MessageDialog dialog = new MessageDialog(getShell(), CVSUIMessages.ModelReplaceOperation_0, null, // accept
// the
// default
// window
// icon
CVSUIMessages.ModelReplaceOperation_1, MessageDialog.QUESTION,
new String[] { CVSUIMessages.ModelReplaceOperation_2, CVSUIMessages.ModelReplaceOperation_3,
IDialogConstants.CANCEL_LABEL },
result[0]); // preview is the default
result[0] = dialog.open();
});
if (result[0] == 2)
throw new OperationCanceledException();
hasPrompted = true;
return result[0] == 0;
}
private boolean hasLocalChanges() {
return getContext().getDiffTree().hasMatchingDiffs(ResourcesPlugin.getWorkspace().getRoot().getFullPath(), new FastDiffFilter() {
@Override
public boolean select(IDiff node) {
if (node instanceof IThreeWayDiff) {
IThreeWayDiff twd = (IThreeWayDiff) node;
int direction = twd.getDirection();
if (direction == IThreeWayDiff.OUTGOING || direction == IThreeWayDiff.CONFLICTING) {
return true;
}
} else {
// Return true for any two-way change
return true;
}
return false;
}
});
}
}
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