/**
* Copyright (c) 2009 Bestsolution.at and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* Tom Schindl<tom.schindl@bestsolution.at> - Initial API and implementation
*/
package org.eclipse.emf.example.databinding.project.ui.rcp.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.core.runtime.IStatus;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.ISources;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.edit.command.AddCommand;
import org.eclipse.emf.example.databinding.project.ui.rcp.Activator;
import org.eclipse.emf.example.databinding.project.ui.rcp.ResourceProvider;
import org.eclipse.emf.example.databinding.project.ui.rcp.dialogs.PersonDialog;
import org.eclipse.emf.examples.databinding.project.core.IModelResource;
import org.eclipse.emf.examples.databinding.project.core.model.project.CommitterShip;
import org.eclipse.emf.examples.databinding.project.core.model.project.Person;
import org.eclipse.emf.examples.databinding.project.core.model.project.ProjectFactory;
import org.eclipse.emf.examples.databinding.project.core.model.project.ProjectPackage;
/**
* Handles the editing/creation of persons
*/
public class PersonEditingHandler extends AbstractHandler
{
/**
* Parameter passed to switch between creation/editing
*/
public static final String ACTION_PARAM = Activator.PLUGIN_ID + ".person.action";
/**
* Parameter value to create a new person
*/
public static final String ACTION_PARAM_VALUE_NEW = "new";
/**
* Parameter value to edit a person
*/
public static final String ACTION_PARAM_VALUE_EDIT = "edit";
public Object execute(ExecutionEvent event) throws ExecutionException
{
IEvaluationContext ctx = (IEvaluationContext)event.getApplicationContext();
IModelResource resource = (IModelResource)ctx.getVariable(ResourceProvider.MODEL_RESOURCE_NAME);
Shell shell = (Shell)ctx.getVariable(ISources.ACTIVE_WORKBENCH_WINDOW_SHELL_NAME);
String action = event.getParameter(ACTION_PARAM);
if (action != null)
{
if (action.equals(ACTION_PARAM_VALUE_NEW) || action.equals(ACTION_PARAM_VALUE_EDIT))
{
IStatus s = resource.setSavePoint();
if (s.isOK())
{
Person p;
if (action.equals(ACTION_PARAM_VALUE_NEW))
{
p = ProjectFactory.eINSTANCE.createPerson();
Command cmd = AddCommand.create(
resource.getEditingDomain(),
resource.getFoundation(),
ProjectPackage.Literals.FOUNDATION__PERSONS,
p);
if (cmd.canExecute())
{
resource.executeCmd(cmd);
}
else
{
resource.rollback();
throw new ExecutionException("Could not execute add command");
}
}
else
{
p = ((CommitterShip)ctx.getVariable(ResourceProvider.COMMITTER_NAME)).getPerson();
}
if (p != null)
{
PersonDialog dialog = new PersonDialog(shell, resource.getEditingDomain(), p);
if (dialog.open() == IDialogConstants.OK_ID)
{
resource.commit();
}
else
{
resource.rollback();
}
}
}
else
{
throw new ExecutionException("Could not set a save point");
}
}
}
return null;
}
}