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/**
* Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) 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:
* Simon McDuff - initial API and implementation
* Eike Stepper - maintenance
* Victor Roldan Betancort - maintenance
*/
package org.eclipse.emf.cdo.internal.ui.actions;
import org.eclipse.emf.cdo.CDOLock;
import org.eclipse.emf.cdo.internal.ui.messages.Messages;
import org.eclipse.emf.cdo.ui.CDOEditorUtil;
import org.eclipse.emf.cdo.view.CDOView;
import org.eclipse.emf.spi.cdo.InternalCDOObject;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPage;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* @author Simon McDuff
*/
public abstract class AbstractLockObjectsAction extends EditingDomainAction
{
private List<InternalCDOObject> objects = new ArrayList<InternalCDOObject>();
private List<InternalCDOObject> lockObjects = new ArrayList<InternalCDOObject>();
private Boolean lock;
public AbstractLockObjectsAction(String title)
{
super(title);
}
public void selectionChanged(IStructuredSelection selection)
{
objects.clear();
lock = null;
if (selection != null)
{
for (Iterator<?> it = selection.iterator(); it.hasNext();)
{
Object object = it.next();
if (object instanceof InternalCDOObject)
{
objects.add((InternalCDOObject)object);
}
}
}
}
@Override
public void update()
{
updateLockInfo();
setEnabled(!lockObjects.isEmpty() && lock != null);
setChecked(lock != null && lock);
}
@Override
protected void doRun(IProgressMonitor progressMonitor) throws Exception
{
if (!objects.isEmpty())
{
InternalCDOObject[] array = objects.toArray(new InternalCDOObject[objects.size()]);
for (InternalCDOObject object : lockObjects)
{
if (lock)
{
getLock(object).unlock();
}
else
{
if (!getLock(object).tryLock())
{
getDisplay().asyncExec(new Runnable()
{
public void run()
{
MessageDialog
.openError(
getShell(),
Messages.getString("AbstractLockObjectsAction.0"), Messages.getString("AbstractLockObjectsAction.1")); //$NON-NLS-1$ //$NON-NLS-2$
}
});
}
}
}
IWorkbenchPage page = getPage();
if (page != null)
{
CDOView view = array[0].cdoView();
CDOEditorUtil.refreshEditors(page, view);
}
}
}
protected abstract CDOLock getLock(InternalCDOObject object);
private void updateLockInfo()
{
lock = null;
lockObjects.clear();
for (InternalCDOObject object : objects)
{
boolean isLocked = getLock(object).isLocked();
if (lock == null || isLocked == lock)
{
lock = isLocked;
lockObjects.add(object);
}
}
}
}
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