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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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.css.editpolicies;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gmf.runtime.common.core.service.AbstractProvider;
import org.eclipse.gmf.runtime.common.core.service.IOperation;
import org.eclipse.gmf.runtime.diagram.ui.services.editpolicy.CreateEditPoliciesOperation;
import org.eclipse.gmf.runtime.diagram.ui.services.editpolicy.IEditPolicyProvider;
import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
import org.eclipse.papyrus.infra.gmfdiag.common.service.ProviderServiceUtil;
import org.eclipse.papyrus.infra.gmfdiag.css.helper.CSSHelper;
/**
* An a provide which installs EventListenerEditPolicy on EditPart which support CSS Styling
*
* @author Camille Letavernier
*
*/
// TODO: Currently this provider is not plugged. Performance improvements are required
public class EventListenerEditPolicyProvider extends AbstractProvider implements IEditPolicyProvider {
@Override
public boolean provides(IOperation operation) {
CreateEditPoliciesOperation epOperation = (CreateEditPoliciesOperation) operation;
EditPart editPart = epOperation.getEditPart();
if (!ProviderServiceUtil.isEnabled(this, editPart)) {
return false;
}
if (!(editPart instanceof GraphicalEditPart)) {
return false;
}
EditingDomain domain = EMFHelper.resolveEditingDomain(editPart);
if (domain == null) {
return false;
}
ResourceSet resourceSet = domain.getResourceSet();
return CSSHelper.isCSSSupported(resourceSet);
}
@Override
public void createEditPolicies(EditPart editPart) {
editPart.installEditPolicy(EventListenerEditPolicy.ROLE, new EventListenerEditPolicy());
}
}
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