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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.debug.internal.ui.viewers.model;
import org.eclipse.debug.internal.ui.viewers.model.ViewerStateTracker.IElementMementoCollector;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementMementoRequest;
import org.eclipse.debug.internal.ui.viewers.model.provisional.ITreeModelViewer;
import org.eclipse.debug.internal.ui.viewers.model.provisional.ModelDelta;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.ui.IMemento;
/**
* Request for element memento.
*
* @since 3.3
*/
class ElementMementoRequest extends MementoUpdate implements IElementMementoRequest {
private IElementMementoCollector fManager;
private ModelDelta fDelta;
/**
* @param provider the content provider to use for the update
* @param viewerInput the current input
* @param collector Collector to report the result to
* @param element the element to update
* @param elementPath the path of the element to update
* @param memento Memento to encode result into
* @param delta Delta to write the result comparison into.
*/
public ElementMementoRequest(TreeModelContentProvider provider, Object viewerInput, IElementMementoCollector collector, Object element, TreePath elementPath, IMemento memento, ModelDelta delta) {
super(provider, viewerInput, provider.getPresentationContext(), element, elementPath, memento);
fManager = collector;
fDelta = delta;
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.IProgressMonitor#done()
*/
@Override
public void done() {
ITreeModelViewer viewer = getContentProvider().getViewer();
if (viewer == null) return; // disposed
if (viewer.getDisplay().getThread() == Thread.currentThread()) {
doComplete();
} else {
viewer.getDisplay().asyncExec(new Runnable() {
@Override
public void run() {
doComplete();
}
});
}
}
private void doComplete() {
if (getContentProvider().isDisposed()) return;
if (!isCanceled() && (getStatus() == null || getStatus().isOK())) {
// replace the element with a memento
fDelta.setElement(getMemento());
}
fManager.requestComplete(ElementMementoRequest.this);
}
@Override
public String toString() {
StringBuffer buf = new StringBuffer();
buf.append("IElementMementoRequest: "); //$NON-NLS-1$
buf.append(getElement());
return buf.toString();
}
}
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