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/*******************************************************************************
* Copyright (c) 2006, 2011 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.compare.structuremergeviewer;
import org.eclipse.compare.ISharedDocumentAdapter;
import org.eclipse.compare.SharedDocumentAdapter;
import org.eclipse.compare.internal.Utilities;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.texteditor.IDocumentProvider;
/**
* An implementation of {@link ISharedDocumentAdapter} that wraps another
* shared document adapter.
* <p>
* Clients may subclass this class.
* </p>
* @since 3.3
*/
public class SharedDocumentAdapterWrapper implements ISharedDocumentAdapter {
private ISharedDocumentAdapter wrappedAdapter;
/**
* Helper method that returns the shared document adapter for the
* given typed element or <code>null</code> if there isn't one.
* @param element the typed element
* @return the shared document adapter for the given typed element
* or <code>null</code>
*/
public static ISharedDocumentAdapter getAdapter(Object element) {
return (ISharedDocumentAdapter)Utilities.getAdapter(element, ISharedDocumentAdapter.class, true);
}
/**
* Create a shared document adapter that wraps the given adapter.
* @param wrappedAdapter the wrapped adapter
*/
public SharedDocumentAdapterWrapper(ISharedDocumentAdapter wrappedAdapter) {
super();
this.wrappedAdapter = wrappedAdapter;
}
@Override
public void connect(IDocumentProvider provider, IEditorInput documentKey)
throws CoreException {
wrappedAdapter.connect(provider, documentKey);
}
@Override
public void disconnect(IDocumentProvider provider, IEditorInput documentKey) {
wrappedAdapter.disconnect(provider, documentKey);
}
@Override
public IEditorInput getDocumentKey(Object element) {
return wrappedAdapter.getDocumentKey(element);
}
@Override
public void flushDocument(IDocumentProvider provider,
IEditorInput documentKey, IDocument document, boolean overwrite) throws CoreException {
wrappedAdapter.flushDocument(provider, documentKey, document, overwrite);
}
/**
* Return the wrapped adapter.
* @return the wrapped adapter
*/
public final ISharedDocumentAdapter getWrappedAdapter() {
return wrappedAdapter;
}
@Override
public void disconnect(Object element) {
IEditorInput input = getDocumentKey(element);
if (input == null)
return;
IDocumentProvider provider = SharedDocumentAdapter.getDocumentProvider(input);
if (provider == null)
return;
disconnect(provider, input);
}
}
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