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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) Vincent.Lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.emf.compare.common.handler;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.workspace.AbstractEMFOperation;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.papyrus.commands.CheckedOperationHistory;
import org.eclipse.papyrus.infra.core.resource.NotFoundException;
import org.eclipse.papyrus.infra.core.sasheditor.contentprovider.IPageMngr;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.core.services.ServicesRegistry;
import org.eclipse.papyrus.infra.core.utils.ServiceUtils;
import org.eclipse.papyrus.infra.core.utils.ServiceUtilsForActionHandlers;
import org.eclipse.papyrus.infra.emf.compare.common.Activator;
import org.eclipse.papyrus.infra.emf.compare.common.modelresource.EMFCompareEditorModel;
import org.eclipse.papyrus.infra.emf.compare.instance.papyrusemfcompareinstance.PapyrusEMFCompareInstance;
import org.eclipse.papyrus.infra.emf.compare.instance.papyrusemfcompareinstance.PapyrusemfcompareinstanceFactory;
import org.eclipse.ui.PlatformUI;
public abstract class AbstractEMFCompareEditorHandler extends AbstractHandler {
final private String type;
public AbstractEMFCompareEditorHandler(final String type) {
this.type = type;
}
/**
*
* @see org.eclipse.core.commands.AbstractHandler#isEnabled()
*
* @return
*/
@Override
public boolean isEnabled() {
return getSelection().size() == 2;
}
//TODO essayer de merger cet handler avec un autre fournissant une commande et la sélection!
protected List<EObject> getSelection() {
ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService().getSelection();
List<EObject> currentSelection = new ArrayList<EObject>();
Iterator<?> iter = ((IStructuredSelection)selection).iterator();
while(iter.hasNext()) {
Object current = iter.next();
if(current instanceof IAdaptable) {
EObject tmp = (EObject)((IAdaptable)current).getAdapter(EObject.class);
if(tmp != null) {
currentSelection.add(tmp);
}
}
}
return currentSelection;
}
/**
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*
* @param event
* @return
* @throws ExecutionException
*/
public Object execute(final ExecutionEvent event) throws ExecutionException {
try {
runAsTransaction();
} catch (ServiceException e) {
throw new ExecutionException("I can't create CompareEditor", e); //$NON-NLS-1$
}
return null;
}
/**
* Run the command as a transaction.
* Create a Transaction and delegate the command to {@link #doExecute(ServicesRegistry)}.
*
* @throws ServiceException
*
*/
public void runAsTransaction() throws ServiceException {
final ServicesRegistry serviceRegistry = ServiceUtilsForActionHandlers.getInstance().getServiceRegistry();
TransactionalEditingDomain domain = ServiceUtils.getInstance().getTransactionalEditingDomain(serviceRegistry);
//Create the transactional command
AbstractEMFOperation command = new AbstractEMFOperation(domain, "Create CompareEditor") { //$NON-NLS-1$
@Override
protected IStatus doExecute(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
try {
AbstractEMFCompareEditorHandler.this.doExecute(serviceRegistry);
} catch (ServiceException e) {
Activator.log.error(e);
return Status.CANCEL_STATUS;
} catch (NotFoundException e) {
Activator.log.error(e);
return Status.CANCEL_STATUS;
}
return Status.OK_STATUS;
}
};
// Execute the command
try {
CheckedOperationHistory.getInstance().execute(command, new NullProgressMonitor(), null);
} catch (ExecutionException e) {
Activator.log.error("I can't create CompareEditor", e); //$NON-NLS-1$
}
}
/**
* Do the execution of the command.
*
* @param serviceRegistry
* @throws ServiceException
* @throws NotFoundException
*/
public void doExecute(final ServicesRegistry serviceRegistry) throws ServiceException, NotFoundException {
Object editorModel = createEditorModel(serviceRegistry);
// Get the mngr allowing to add/open new editor.
IPageMngr pageMngr = ServiceUtils.getInstance().getIPageMngr(serviceRegistry);
// add the new editor model to the sash.
pageMngr.openPage(editorModel);
}
/**
* Create a model identifying the editor. This model will be saved with the sash
*
* @return
* @throws ServiceException
* @throws NotFoundException
* The model where to save the TableInstance is not found.
*/
protected Object createEditorModel(final ServicesRegistry serviceRegistry) throws ServiceException, NotFoundException {
PapyrusEMFCompareInstance editor = PapyrusemfcompareinstanceFactory.eINSTANCE.createPapyrusEMFCompareInstance();
editor.setLeft(getSelection().get(0));
editor.setRight(getSelection().get(1));
editor.setType(this.type);
EMFCompareEditorModel model = (EMFCompareEditorModel)ServiceUtils.getInstance().getModelSet(serviceRegistry).getModelChecked(EMFCompareEditorModel.MODEL_ID);
model.addEMFCompareEditorInstance(editor);
return editor;
}
}
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