/*******************************************************************************
* Copyright (c) 2010-2015 Henshin developers. 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:
* TU Berlin, University of Luxembourg, SES S.A.
*******************************************************************************/
package de.tub.tfs.henshin.editor.actions.rule;
import java.util.List;
import org.eclipse.emf.henshin.model.HenshinFactory;
import org.eclipse.emf.henshin.model.HenshinPackage;
import org.eclipse.emf.henshin.model.Module;
import org.eclipse.emf.henshin.model.Rule;
import org.eclipse.emf.henshin.model.Unit;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.ui.actions.SelectionAction;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.ui.IWorkbenchPart;
import de.tub.tfs.henshin.editor.commands.transformation_unit.CreateTransformationUnitCommand;
import de.tub.tfs.henshin.editor.util.IconUtil;
import de.tub.tfs.henshin.editor.util.ModelUtil;
import de.tub.tfs.henshin.editor.util.validator.NameEditValidator;
import de.tub.tfs.henshin.model.layout.EContainerDescriptor;
/**
* The Class CreateRuleAction.
*/
public class CreateRuleAction extends SelectionAction {
/** The Constant ID for this Action. */
public static final String ID = "henshineditor.actions.CreateRuleAction";
/**
* The containing transformation system of this Editparts rule model object.
*/
private Module transformationSystem;
/**
* Instantiates a new create rule action.
*
* @param part
* the part
*/
public CreateRuleAction(IWorkbenchPart part) {
super(part);
setId(ID);
setText("Rule");
setImageDescriptor(IconUtil.getDescriptor("Rule16.png"));
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.ui.actions.WorkbenchPartAction#calculateEnabled()
*/
@Override
protected boolean calculateEnabled() {
List<?> selectedObjects = getSelectedObjects();
transformationSystem = null;
if (selectedObjects.size() == 1) {
Object selectedObject = selectedObjects.get(0);
if ((selectedObject instanceof EditPart)) {
EditPart editpart = (EditPart) selectedObject;
Object model = editpart.getModel();
if (model instanceof Module) {
transformationSystem = (Module) model;
}
else if (model instanceof EContainerDescriptor
&& editpart.getAdapter(Unit.class) != null) {
transformationSystem = (Module) ((EContainerDescriptor) model)
.getContainer();
}
}
}
return transformationSystem != null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.Action#run()
*/
@Override
public void run() {
final String defaultRuleName = ModelUtil.getNewChildDistinctName(
transformationSystem,
HenshinPackage.MODULE__UNITS, "rule");
// asks the user for the new rule name, which has to be unique in the
// containing TransfomationSystem
final InputDialog dialog = new InputDialog(getWorkbenchPart().getSite()
.getShell(), "Rule Name Input",
"Enter a name for the new rule:", defaultRuleName,
new NameEditValidator(transformationSystem,
HenshinPackage.MODULE__UNITS, true));
dialog.open();
if (dialog.getReturnCode() == Window.OK) {
Command command = new CreateTransformationUnitCommand<Rule>(
transformationSystem,
HenshinFactory.eINSTANCE.createRule(), dialog.getValue(),
HenshinPackage.Literals.MODULE__UNITS);
execute(command);
}
}
}