org.eclipse.osbp.ecview.dsl/src/org/eclipse/osbp/ecview/dsl/scope/BindingEndpointDefVisibilityMethodScope.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * 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:
 *         Florian Pirchner - Initial implementation
 */

package org.eclipse.osbp.ecview.dsl.scope;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.xtext.resource.EObjectDescription;
import org.eclipse.xtext.resource.IEObjectDescription;
import org.eclipse.xtext.resource.IResourceDescriptions;
import org.eclipse.xtext.scoping.IScope;
import org.eclipse.xtext.scoping.impl.AbstractScope;
import org.eclipse.osbp.ecview.semantic.uimodel.UiRawBindable;
import org.eclipse.osbp.ecview.semantic.uimodel.UiTypedBindableDef;
import org.eclipse.osbp.ecview.semantic.uisemantics.UiSemanticsPackage;
import org.eclipse.osbp.ecview.semantic.uisemantics.UxElementDefinition;
import org.eclipse.osbp.ecview.semantic.uisemantics.UxEndpointDef;

public class BindingEndpointDefVisibilityMethodScope extends AbstractScope {

	private UiTypedBindableDef bindingEndpointDef;
	private IResourceDescriptions desc;

	protected BindingEndpointDefVisibilityMethodScope(
			IResourceDescriptions desc, UiTypedBindableDef context) {
		super(IScope.NULLSCOPE, true);
		this.desc = desc;
		bindingEndpointDef = context;
	}

	@Override
	protected Iterable<IEObjectDescription> getAllLocalElements() {
		UiRawBindable yEmb = bindingEndpointDef.getRawBindableOfLastSegment();
		if (yEmb == null) {
			return Collections.emptyList();
		}
		List<IEObjectDescription> result = new ArrayList<IEObjectDescription>();
		for (IEObjectDescription des : desc
				.getExportedObjectsByType(UiSemanticsPackage.Literals.UX_VISIBLEABLE_OPTION)) {
			UxEndpointDef binding = (UxEndpointDef) des.getEObjectOrProxy();
			binding = (UxEndpointDef) EcoreUtil.resolve(binding,
					bindingEndpointDef);
			UxElementDefinition elementDef = (UxElementDefinition) binding
					.eContainer().eContainer();

			if (elementDef.getUri().getEClass().isSuperTypeOf(yEmb.eClass())) {
				result.add(EObjectDescription.create(binding.getName(), binding));
			}
		}
		return result;
	}
}