Content of file ViewModelSelectControlSWTRenderer.java
/*******************************************************************************
* 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 - initial API and implementation
******************************************************************************/
package org.eclipse.emf.ecp.view.template.internal.tooling.controls;
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.command.Command;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecp.common.spi.EMFUtils;
import org.eclipse.emf.ecp.view.internal.editor.controls.EditableEReferenceLabelControlSWTRenderer;
import org.eclipse.emf.ecp.view.model.common.edit.provider.CustomReflectiveItemProviderAdapterFactory;
import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
import org.eclipse.emf.ecp.view.spi.model.VControl;
import org.eclipse.emf.ecp.view.spi.model.VViewPackage;
import org.eclipse.emf.ecp.view.template.internal.tooling.Messages;
import org.eclipse.emf.edit.command.SetCommand;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
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.window.Window;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.ElementListSelectionDialog;
import org.eclipse.ui.dialogs.ISelectionStatusValidator;
/**
* Renderer for the
* {@link org.eclipse.emf.ecp.view.template.selector.viewModelElement.model.VTViewModelElementSelector#setClassType(EClass)
* VTViewModelElementSelector#setClassType(EClass)}.
*
* @author Eugen Neufeld
*
*/
@SuppressWarnings("restriction")
public class ViewModelSelectControlSWTRenderer extends EditableEReferenceLabelControlSWTRenderer {
/**
* Default constructor.
*
* @param vElement the view model element to be rendered
* @param viewContext the view context
* @param reportService the {@link ReportService}
*/
public ViewModelSelectControlSWTRenderer(VControl vElement, ViewModelContext viewContext,
ReportService reportService) {
super(vElement, viewContext, reportService);
}
private static final String PLUGIN_ID = "org.eclipse.emf.ecp.view.template.tooling"; //$NON-NLS-1$
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.ecp.view.internal.editor.controls.EditableEReferenceLabelControlSWTRenderer#linkValue(org.eclipse.swt.widgets.Shell)
*/
@Override
protected void linkValue(Shell shell) {
final ComposedAdapterFactory adapterFactory = new ComposedAdapterFactory(new AdapterFactory[] {
new CustomReflectiveItemProviderAdapterFactory(),
new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE) });
final AdapterFactoryLabelProvider labelProvider = new AdapterFactoryLabelProvider(
adapterFactory);
final ElementListSelectionDialog elsd = new ElementListSelectionDialog(shell, labelProvider);
elsd.setTitle(Messages.ViewModelSelectControlSWTRenderer_SelectionDialogTilte);
elsd.setMultipleSelection(false);
elsd.setValidator(new ISelectionStatusValidator() {
@Override
public IStatus validate(Object[] selection) {
if (selection == null || selection.length == 0) {
return new Status(IStatus.ERROR, PLUGIN_ID,
Messages.ViewModelSelectControlSWTRenderer_ErrorNoSelection);
}
final Object object = selection[0];
if (!EClass.class.isInstance(object)) {
return new Status(IStatus.ERROR, PLUGIN_ID,
Messages.ViewModelSelectControlSWTRenderer_ErrorNoEClass);
}
if (!VViewPackage.eINSTANCE.getElement().isSuperTypeOf(EClass.class.cast(object))) {
return new Status(IStatus.ERROR, PLUGIN_ID,
Messages.ViewModelSelectControlSWTRenderer_ErrorNoVElement);
}
return Status.OK_STATUS;
}
});
elsd.setBlockOnOpen(true);
elsd.setElements(EMFUtils.getSubClasses(VViewPackage.eINSTANCE.getElement()).toArray());
final int open = elsd.open();
labelProvider.dispose();
adapterFactory.dispose();
if (Window.CANCEL == open) {
return;
}
final Object result = elsd.getFirstResult();
final IObservableValue observableValue;
try {
observableValue = getEMFFormsDatabinding()
.getObservableValue(getVElement().getDomainModelReference(), getViewModelContext().getDomainModel());
} catch (final DatabindingFailedException ex) {
showLinkValueFailedMessageDialog(shell, ex);
return;
}
final EObject eObject = (EObject) ((IObserving) observableValue).getObserved();
final EStructuralFeature structuralFeature = (EStructuralFeature) observableValue.getValueType();
observableValue.dispose();
final EditingDomain editingDomain = getEditingDomain(eObject);
final Command command = SetCommand.create(editingDomain, eObject, structuralFeature, result);
editingDomain.getCommandStack().execute(command);
}
}