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/*****************************************************************************
* Copyright (c) 2013 CEA
*
*
* 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:
* Soyatec - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.providers;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.action.ContributionItem;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.BehaviorExecutionSpecificationBehaviorEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.BehaviorExecutionSpecificationEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.util.BehaviorDisplayHelper;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.ui.ISelectionService;
import org.eclipse.ui.menus.IWorkbenchContribution;
import org.eclipse.ui.services.IServiceLocator;
/**
* @author Jin Liu (jin.liu@soyatec.com)
*/
public class DisplayBehaviorContributionItem extends ContributionItem implements IWorkbenchContribution {
private IServiceLocator serviceLocator;
/**
* @see org.eclipse.ui.menus.IWorkbenchContribution#initialize(org.eclipse.ui.services.IServiceLocator)
*
* @param serviceLocator
*/
public void initialize(IServiceLocator serviceLocator) {
this.serviceLocator = serviceLocator;
}
@Override
public boolean isDynamic() {
return true;
}
private ISelection getSelection() {
if(serviceLocator == null) {
return null;
}
ISelectionService selectionService = (ISelectionService)serviceLocator.getService(ISelectionService.class);
if(selectionService != null) {
return selectionService.getSelection();
}
return null;
}
/**
* @see org.eclipse.jface.action.ContributionItem#fill(org.eclipse.swt.widgets.Menu, int)
*
* @param menu
* @param index
*/
@Override
public void fill(Menu menu, int index) {
super.fill(menu, index);
ISelection selection = getSelection();
if(selection == null || selection.isEmpty()) {
return;
}
if(selection instanceof IStructuredSelection) {
Object firstElement = ((IStructuredSelection)selection).getFirstElement();
if(firstElement instanceof BehaviorExecutionSpecificationEditPart) {
final View view = ((BehaviorExecutionSpecificationEditPart)firstElement).getNotationView();
final TransactionalEditingDomain domain = ((BehaviorExecutionSpecificationEditPart)firstElement).getEditingDomain();
boolean displayBehavior = BehaviorDisplayHelper.shouldDisplayBehavior(view);
if(displayBehavior) {
MenuItem hide = new MenuItem(menu, SWT.NONE, 0);
hide.setText("Hide Behavior Label");
hide.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
Command cmd = BehaviorDisplayHelper.getChangeDisplayBehaviorCommand(domain, view, false);
domain.getCommandStack().execute(cmd);
}
});
new MenuItem(menu, SWT.SEPARATOR, 1);
} else {
MenuItem show = new MenuItem(menu, SWT.NONE, 0);
show.setText("Display Behavior Label");
show.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
Command cmd = BehaviorDisplayHelper.getChangeDisplayBehaviorCommand(domain, view, true);
domain.getCommandStack().execute(cmd);
}
});
new MenuItem(menu, SWT.SEPARATOR, 1);
}
}
}
}
}
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