/******************************************************************************
* Copyright (c) 2011 GitHub Inc.
* 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:
* Kevin Sawicki (GitHub Inc.) - initial API and implementation
*****************************************************************************/
package org.eclipse.egit.ui.internal.dialogs;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.WorkbenchStyledLabelProvider;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.AbstractTreeViewer;
import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider;
import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.jgit.api.MergeResult;
import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.model.WorkbenchAdapter;
import org.eclipse.ui.model.WorkbenchContentProvider;
/**
* Dialog to display when a revert fails
*/
public class RevertFailureDialog extends MessageDialog {
/**
* Show dialog for failure result
*
* @param shell
* @param commit
* @param result
*/
public static void show(Shell shell, RevCommit commit, MergeResult result) {
String message;
Map<String, MergeFailureReason> reasons = result != null ? result
.getFailingPaths() : null;
if (reasons != null && !reasons.isEmpty())
message = MessageFormat.format(UIText.RevertFailureDialog_Message,
commit.abbreviate(7).name());
else
message = MessageFormat.format(
UIText.RevertFailureDialog_MessageNoFiles, commit
.abbreviate(7).name());
RevertFailureDialog dialog = new RevertFailureDialog(shell, message,
reasons);
dialog.setShellStyle(dialog.getShellStyle() | SWT.SHEET | SWT.RESIZE);
dialog.open();
}
private static class Path extends WorkbenchAdapter {
private final String path;
private Path(String path) {
this.path = path;
}
@Override
public String getLabel(Object object) {
return path;
}
@Override
public ImageDescriptor getImageDescriptor(Object object) {
String name = new org.eclipse.core.runtime.Path(path).lastSegment();
if (name != null) {
return PlatformUI.getWorkbench().getEditorRegistry()
.getImageDescriptor(name);
} else
return PlatformUI.getWorkbench().getSharedImages()
.getImageDescriptor(ISharedImages.IMG_OBJ_FILE);
}
@Override
public StyledString getStyledText(Object object) {
int lastSlash = path.lastIndexOf('/');
StyledString styled = new StyledString();
if (lastSlash != -1 && lastSlash + 1 < path.length()) {
String name = path.substring(lastSlash + 1);
styled.append(name).append(' ');
styled.append("- ", StyledString.QUALIFIER_STYLER); //$NON-NLS-1$
styled.append(path.substring(0, lastSlash),
StyledString.QUALIFIER_STYLER);
} else
styled.append(path);
return styled;
}
}
private static class RevertFailure extends WorkbenchAdapter {
private final MergeFailureReason reason;
private final List<Path> paths;
private RevertFailure(MergeFailureReason reason) {
this.reason = reason;
this.paths = new ArrayList<>();
}
private RevertFailure add(String path) {
paths.add(new Path(path));
return this;
}
@Override
public Object[] getChildren(Object object) {
return paths.toArray();
}
@Override
public String getLabel(Object object) {
switch (reason) {
case DIRTY_INDEX:
return UIText.RevertFailureDialog_ReasonChangesInIndex;
case DIRTY_WORKTREE:
return UIText.RevertFailureDialog_ReasonChangesInWorkingDirectory;
case COULD_NOT_DELETE:
return UIText.RevertFailureDialog_ReasonDeleteFailure;
default:
return super.getLabel(object);
}
}
@Override
public StyledString getStyledText(Object object) {
StyledString styled = new StyledString(getLabel(object));
styled.append(' ');
styled.append(MessageFormat.format("({0})", //$NON-NLS-1$
Integer.valueOf(paths.size())), StyledString.COUNTER_STYLER);
return styled;
}
}
private final Map<String, MergeFailureReason> reasons;
/**
* Create dialog for merge result
*
* @param shell
* @param message
* @param reasons
*/
public RevertFailureDialog(Shell shell, String message,
Map<String, MergeFailureReason> reasons) {
super(shell, UIText.RevertFailureDialog_Title, null, message, ERROR,
new String[] { IDialogConstants.OK_LABEL }, 0);
this.reasons = reasons;
}
@Override
protected Control createCustomArea(Composite parent) {
if (reasons == null || reasons.isEmpty())
return null;
Composite fileArea = new Composite(parent, SWT.NONE);
GridDataFactory.fillDefaults().grab(true, true).hint(SWT.DEFAULT, 80)
.applyTo(fileArea);
GridLayoutFactory.fillDefaults().applyTo(fileArea);
TreeViewer viewer = new TreeViewer(fileArea);
viewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);
GridDataFactory.fillDefaults().grab(true, true)
.applyTo(viewer.getControl());
viewer.setContentProvider(new WorkbenchContentProvider() {
@Override
public Object[] getElements(Object element) {
return ((Collection) element).toArray();
}
});
final IStyledLabelProvider styleProvider = new WorkbenchStyledLabelProvider() {
@Override
public StyledString getStyledText(Object element) {
// TODO Replace with use of IWorkbenchAdapter3 when is no longer
// supported
if (element instanceof RevertFailure)
return ((RevertFailure) element).getStyledText(element);
if (element instanceof Path)
return ((Path) element).getStyledText(element);
return super.getStyledText(element);
}
};
viewer.setLabelProvider(new DelegatingStyledCellLabelProvider(
styleProvider));
viewer.setComparator(new ViewerComparator());
Map<MergeFailureReason, RevertFailure> failures = new HashMap<>();
for (Entry<String, MergeFailureReason> reason : reasons.entrySet()) {
RevertFailure failure = failures.get(reason.getValue());
if (failure == null) {
failure = new RevertFailure(reason.getValue());
failures.put(reason.getValue(), failure);
}
failure.add(reason.getKey());
}
viewer.setInput(failures.values());
return fileArea;
}
}