/*******************************************************************************
* Copyright (c) 2013, Ericsson AB 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:
* Sebastien Dubois (Ericsson) - Adapted to use with Mylyn Reviews
*******************************************************************************/
package org.eclipse.mylyn.internal.reviews.ui.compare;
import java.io.InputStream;
import org.apache.commons.io.FilenameUtils;
import org.eclipse.compare.CompareUI;
import org.eclipse.compare.ISharedDocumentAdapter;
import org.eclipse.compare.IStreamContentAccessor;
import org.eclipse.compare.ITypedElement;
import org.eclipse.compare.SharedDocumentAdapter;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.text.IDocument;
import org.eclipse.swt.graphics.Image;
import org.eclipse.team.core.history.IFileRevision;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.texteditor.IDocumentProvider;
/**
* An {@link ITypedElement} wrapper for {@link IFileRevision} for use with Mylyn Reviews
*
* @author Sebastien Dubois
*/
public class FileRevisionTypedElement implements IAdaptable, IStreamContentAccessor, ITypedElement {
private final IFileRevision fileRevision;
private final IProgressMonitor runningMonitor;
private ISharedDocumentAdapter sharedDocumentAdapter;
public FileRevisionTypedElement(IFileRevision fileRevision, IProgressMonitor monitor) {
this.fileRevision = fileRevision;
this.runningMonitor = monitor;
}
private IFileRevision getFileRevision() {
return fileRevision;
}
public Object getAdapter(@SuppressWarnings("rawtypes")
Class adapter) {
if (ISharedDocumentAdapter.class.equals(adapter)) {
synchronized (this) {
if (sharedDocumentAdapter == null) {
sharedDocumentAdapter = new SharedDocumentAdapter() {
@Override
public IEditorInput getDocumentKey(Object element) {
return FileRevisionTypedElement.this.getDocumentKey(element);
}
public void flushDocument(IDocumentProvider provider, IEditorInput documentKey,
IDocument document, boolean overwrite) {
// The document is read-only
}
};
}
return sharedDocumentAdapter;
}
}
return Platform.getAdapterManager().getAdapter(this, adapter);
}
public InputStream getContents() throws CoreException {
return fileRevision.getStorage(runningMonitor).getContents();
}
public IEditorInput getDocumentKey(Object element) {
if (element instanceof FileRevisionTypedElement) {
if (element.equals(this)) {
return new FileRevisionEditorInput(fileRevision, runningMonitor);
}
}
return null;
}
public String getName() {
return fileRevision.getName();
}
public Image getImage() {
return CompareUI.getImage(getType());
}
public String getType() {
String extension = FilenameUtils.getExtension(getName());
return extension != null && extension.length() > 0 ? extension : ITypedElement.TEXT_TYPE;
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof FileRevisionTypedElement) {
final FileRevisionTypedElement otherElement = (FileRevisionTypedElement) obj;
return otherElement.getFileRevision().equals(fileRevision);
}
return false;
}
@Override
public int hashCode() {
return fileRevision.hashCode();
}
}