if (editPart instanceof WebWebOwnedListCompartmentEditPart) {
			ArrayList<IElementType> types = new ArrayList<IElementType>(1);
			types.add(ContentElementTypes.CustomList_3001);
			return types;
		}
		if (editPart instanceof WebWebOwnedWebCompartmentEditPart) {
			ArrayList<IElementType> types = new ArrayList<IElementType>(1);
			types.add(ContentElementTypes.Web_3014);
			return types;
		}

package com.mdd4cca.msf.content.diagram.edit.policies;

import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.PopupBarEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;

import com.mdd4cca.msf.content.Web;
import com.mdd4cca.msf.content.diagram.part.Messages;
import com.mdd4cca.msf.content.diagram.providers.ContentElementTypes;
import com.mdd4cca.msf.content.diagram.toolBar.WebPopupBarTool;

public class WebPopupBarEditPolicy extends PopupBarEditPolicy{
	@Override
	protected void fillPopupBarDescriptors() {
		super.fillPopupBarDescriptors();
		EObject webElement = ((IGraphicalEditPart) getHost()).resolveSemanticElement();
		
		// Component -> State
		if (webElement instanceof Web) {
			addPopupBarDescriptor(new WebPopupBarTool(this, ContentElementTypes.Web_3014, Messages.Web5CreationTool_title));			
		}
	}
	
	public void addPopupBarDescriptor(WebPopupBarTool tool) {
		super.addPopupBarDescriptor(null, tool.getImage(), tool, tool.getDescription());
	}
	
	@Override
	protected boolean shouldShowDiagramAssistant() {
		return true;
	}
}

package com.mdd4cca.msf.content.diagram.toolBar;

import org.eclipse.gmf.runtime.diagram.ui.tools.PopupBarTool;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;

import com.mdd4cca.msf.content.diagram.edit.policies.WebPopupBarEditPolicy;
import com.mdd4cca.msf.content.diagram.providers.ContentElementTypes;

public class WebPopupBarTool extends PopupBarTool{
	private Image image;
	private String description;
	
	public WebPopupBarTool(WebPopupBarEditPolicy policy, IElementType elementType, String description) {
		super(policy.getHost(), elementType);
		
		ImageDescriptor imageDescriptor = ContentElementTypes.getImageDescriptor(elementType);
		this.image = imageDescriptor.createImage();
		this.description = description;
	}
	
	public Image getImage() {
		return image;
	}
	
	public String getDescription() {
		return description;
	}
}

	/**
	 * @generated
	 */
	protected void createDefaultEditPolicies() {
		super.createDefaultEditPolicies();
		installEditPolicy(EditPolicyRoles.SEMANTIC_ROLE,
				new WebItemSemanticEditPolicy());
		installEditPolicy(EditPolicy.LAYOUT_ROLE, createLayoutEditPolicy());
		installEditPolicy(EditPolicyRoles.OPEN_ROLE,
				new OpenDiagramEditPolicy());
		installEditPolicy(EditPolicyRoles.POPUPBAR_ROLE,
				new WebPopupBarEditPolicy());
		// XXX need an SCR to runtime to have another abstract superclass that would let children add reasonable editpolicies
		// removeEditPolicy(org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles.CONNECTION_HANDLES_ROLE);
	}