| /** |
| * Copyright (c) 2011-2014 EclipseSource Muenchen GmbH and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Eugen Neufeld - initial API and implementation |
| */ |
| package org.eclipse.emf.ecp.view.mappingdmr.tooling; |
| |
| import java.util.Collection; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.databinding.observable.IObserving; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.emf.ecore.EClass; |
| import org.eclipse.emf.ecore.EClassifier; |
| import org.eclipse.emf.ecore.EPackage; |
| import org.eclipse.emf.ecore.EPackage.Descriptor; |
| import org.eclipse.emf.ecore.EPackage.Registry; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecp.common.spi.EMFUtils; |
| import org.eclipse.emf.ecp.view.internal.editor.controls.EditableEReferenceLabelControlSWTRenderer; |
| import org.eclipse.emf.ecp.view.spi.context.ViewModelContext; |
| import org.eclipse.emf.ecp.view.spi.mappingdmr.model.VMappingDomainModelReference; |
| import org.eclipse.emf.ecp.view.spi.model.VControl; |
| import org.eclipse.emf.edit.provider.ComposedAdapterFactory; |
| import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory; |
| import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider; |
| import org.eclipse.emfforms.spi.common.report.ReportService; |
| import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerComparator; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.dialogs.ElementTreeSelectionDialog; |
| import org.eclipse.ui.dialogs.ISelectionStatusValidator; |
| |
| /** |
| * Control for a {@link VMappingDomainModelReference}. |
| * |
| * @author Eugen Neufeld |
| * |
| */ |
| @SuppressWarnings("restriction") |
| public class MappedEClassControlSWTRenderer extends |
| EditableEReferenceLabelControlSWTRenderer { |
| |
| /** |
| * @param vElement the view model element to be rendered |
| * @param viewContext the view context |
| * @param reportService the {@link ReportService} |
| */ |
| public MappedEClassControlSWTRenderer(VControl vElement, ViewModelContext viewContext, |
| ReportService reportService) { |
| super(vElement, viewContext, reportService); |
| } |
| |
| /** |
| * @author Eugen |
| * |
| */ |
| private static final class EClassTreeContentProvider implements ITreeContentProvider { |
| @Override |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public void dispose() { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public boolean hasChildren(Object element) { |
| if (EPackage.class.isInstance(element)) { |
| return true; |
| } |
| if (Descriptor.class.isInstance(element)) { |
| final Descriptor descriptor = (Descriptor) element; |
| descriptor.getEPackage(); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public Object getParent(Object element) { |
| if (EClass.class.isInstance(element)) { |
| return ((EClass) element).eContainer(); |
| } |
| return null; |
| } |
| |
| @Override |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| @Override |
| public Object[] getChildren(Object parentElement) { |
| if (EPackage.class.isInstance(parentElement)) { |
| final EPackage ePackage = (EPackage) parentElement; |
| final Set<EClass> result = new LinkedHashSet<EClass>(); |
| for (final EClassifier classifier : ePackage.getEClassifiers()) { |
| if (EClass.class.isInstance(classifier)) { |
| result.add((EClass) classifier); |
| } |
| } |
| return result.toArray(); |
| } |
| if (Descriptor.class.isInstance(parentElement)) { |
| return getChildren(((Descriptor) parentElement).getEPackage()); |
| } |
| if (Registry.class.isInstance(parentElement)) { |
| return ((Registry) parentElement).values().toArray(); |
| } |
| if (Collection.class.isInstance(parentElement)) { |
| return Collection.class.cast(parentElement).toArray(); |
| } |
| return null; |
| } |
| } |
| |
| @Override |
| protected void linkValue(Shell shell) { |
| IObservableValue observableValue; |
| try { |
| observableValue = getEMFFormsDatabinding() |
| .getObservableValue(getVElement().getDomainModelReference(), getViewModelContext().getDomainModel()); |
| } catch (final DatabindingFailedException ex) { |
| showLinkValueFailedMessageDialog(shell, ex); |
| return; |
| } |
| final VMappingDomainModelReference dmr = (VMappingDomainModelReference) ((IObserving) observableValue) |
| .getObserved(); |
| observableValue.dispose(); |
| final ComposedAdapterFactory adapterFactory = new ComposedAdapterFactory(new AdapterFactory[] { |
| new ReflectiveItemProviderAdapterFactory(), |
| new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE) }); |
| final AdapterFactoryLabelProvider labelProvider = new AdapterFactoryLabelProvider( |
| adapterFactory); |
| final ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(shell, labelProvider, |
| getContentProvider()); |
| dialog.setAllowMultiple(false); |
| dialog.setValidator(new ISelectionStatusValidator() { |
| |
| @Override |
| public IStatus validate(Object[] selection) { |
| if (selection.length != 0 && EClass.class.isInstance(selection[0])) { |
| |
| return Status.OK_STATUS; |
| } |
| return new Status(IStatus.ERROR, org.eclipse.emf.ecp.view.internal.editor.controls.Activator.PLUGIN_ID, |
| "This is not an EClass."); //$NON-NLS-1$ |
| } |
| }); |
| dialog.setInput(getInput(dmr)); |
| dialog.setMessage("Select an EClass."); //$NON-NLS-1$ |
| dialog.setTitle("Select an EClass."); //$NON-NLS-1$ |
| dialog.setComparator(new ViewerComparator()); |
| final int result = dialog.open(); |
| if (Window.OK == result) { |
| final Object selection = dialog.getFirstResult(); |
| if (EClass.class.isInstance(selection)) { |
| final EClass selectedFeature = (EClass) selection; |
| |
| dmr.setMappedClass(selectedFeature); |
| |
| } |
| } |
| labelProvider.dispose(); |
| } |
| |
| private ITreeContentProvider getContentProvider() { |
| return new EClassTreeContentProvider(); |
| } |
| |
| /** |
| * @return an instance of the {@link org.eclipse.emf.ecore.EPackage.Registry} |
| */ |
| private Object getInput(VMappingDomainModelReference dmr) { |
| final EClass referenceMap = EReference.class.cast(dmr.getDomainModelEFeature()).getEReferenceType(); |
| |
| final EReference valueReference = EReference.class.cast(referenceMap.getEStructuralFeature("value")); //$NON-NLS-1$ |
| if (valueReference == null) { |
| return null; |
| } |
| return EMFUtils.getSubClasses(valueReference.getEReferenceType()); |
| // return Registry.INSTANCE; |
| } |
| |
| } |