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/*****************************************************************************
* Copyright (c) 2013 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.nattable.common.handlers;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.papyrus.infra.core.editor.IMultiDiagramEditor;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.emf.utils.ServiceUtilsForIEvaluationContext;
import org.eclipse.papyrus.infra.nattable.manager.table.INattableModelManager;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorPart;
/**
* This handler allows to rename a Papyrus Table. The handler is activated when
* the active editor is a Papyrus NatTableEditor.
*
* @author Camille Letavernier
*
*/
public class RenameTableHandler extends AbstractHandler {
public static String RenameTableHandler_NewName = "New name:";
public static String RenameTableHandler_RenameAnExistingTable = "Rename an existing table";
/**
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
* @param event
* @return
* @throws ExecutionException
*
*/
public Object execute(ExecutionEvent event) throws ExecutionException {
executeTransaction(event);
return null;
}
/**
* Execute as transaction
*
* @param event
*/
private void executeTransaction(ExecutionEvent event) {
// Get requested objects
final INattableModelManager tableManager;
try {
IEvaluationContext context = getIEvaluationContext(event);
tableManager = lookupTableManager(context);
} catch (ServiceException e) {
// silently fails
return;
}
if(tableManager == null) {
return;
}
// Open the dialog to ask the new name
String currentName = tableManager.getTableName();
String newName = null;
InputDialog dialog = new InputDialog(Display.getCurrent().getActiveShell(), RenameTableHandler_RenameAnExistingTable, RenameTableHandler_NewName, currentName, null);
if(dialog.open() == Window.OK) {
newName = dialog.getValue();
if(newName == null || newName.length() <= 0) {
return;
}
} else {
// cancelled
return;
}
tableManager.setTableName(newName);
}
/**
* Get the name used in the {@link RecordingCommand}. This name will be
* visible in undo/redo.
*
* @return The command name to show.
*/
public String getCommandName() {
return "Rename Table";
}
protected IEvaluationContext getIEvaluationContext(ExecutionEvent event) {
if(event.getApplicationContext() instanceof IEvaluationContext) {
return (IEvaluationContext)event.getApplicationContext();
}
return null;
}
/**
* Get the Table model element. This method can be used from {@link #execute(ExecutionEvent)} or {@link #setEnabled(Object)}.
*
* @return The current table
* @throws ServiceException
*/
protected INattableModelManager lookupTableManager(IEvaluationContext context) throws ServiceException {
IEditorPart editor = ServiceUtilsForIEvaluationContext.getInstance().getService(IMultiDiagramEditor.class, context);
INattableModelManager tableManager = (INattableModelManager)editor.getAdapter(INattableModelManager.class);
return tableManager;
}
/**
* Try to lookup the TransactionalEditingDomain.
*
* @return
* @throws ServiceException
* If the Editing domain can't be found.
*/
protected TransactionalEditingDomain lookupTransactionalEditingDomain(IEvaluationContext context) throws ServiceException {
// Get page from the event !
// IWorkbenchPage page =
// HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
return ServiceUtilsForIEvaluationContext.getInstance().getTransactionalEditingDomain(context);
}
/**
* Called by framework. Need to set the enabled flag.
*
* @see org.eclipse.core.commands.AbstractHandler#setEnabled(java.lang.Object)
*
* @param evaluationContext
*/
@Override
public void setEnabled(Object evaluationContext) {
if(!(evaluationContext instanceof IEvaluationContext)) {
setBaseEnabled(false);
return;
}
IEvaluationContext context = (IEvaluationContext)evaluationContext;
try {
// Try to get the Table
setBaseEnabled(lookupTableManager(context) != null);
return;
} catch (ServiceException e) {
// Can't find ServiceRegistry: disable
}
//In all other cases
setBaseEnabled(false);
}
}
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