| /******************************************************************************* |
| * Copyright (c) 2007 Oracle. 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.ui.internal.mappings.details; |
| |
| import org.eclipse.emf.common.command.CommandStack; |
| import org.eclipse.emf.common.notify.Adapter; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.common.notify.impl.AdapterImpl; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.jface.text.Document; |
| import org.eclipse.jface.text.ITextListener; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.TextEvent; |
| import org.eclipse.jface.text.TextViewer; |
| import org.eclipse.jpt.core.internal.mappings.IGenerator; |
| import org.eclipse.jpt.core.internal.mappings.IId; |
| import org.eclipse.jpt.core.internal.mappings.JpaCoreMappingsPackage; |
| import org.eclipse.jpt.ui.internal.details.BaseJpaComposite; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory; |
| |
| /** |
| * GeneratorComposite |
| */ |
| public abstract class GeneratorComposite<E extends IGenerator> extends BaseJpaComposite |
| { |
| private IId id; |
| private E generator; |
| private Adapter generatorListener; |
| |
| protected ITextViewer nameViewer; |
| |
| public GeneratorComposite(Composite parent, CommandStack commandStack, TabbedPropertySheetWidgetFactory widgetFactory) { |
| super(parent, SWT.NULL, commandStack, widgetFactory); |
| this.generatorListener = buildGeneratorListner(); |
| } |
| |
| private Adapter buildGeneratorListner() { |
| return new AdapterImpl() { |
| public void notifyChanged(Notification notification) { |
| generatorChanged(notification); |
| } |
| }; |
| } |
| |
| /** |
| * Builds the Generator specifiedName viewer. |
| * |
| * @param parent |
| * @return |
| */ |
| protected ITextViewer buildNameViewer(Composite parent) { |
| final TextViewer textViewer = new TextViewer(parent, SWT.SINGLE | SWT.BORDER); |
| textViewer.setDocument(new Document()); |
| textViewer.addTextListener(new ITextListener() { |
| public void textChanged(TextEvent event) { |
| if (isPopulating()) { |
| return; |
| } |
| |
| String name = textViewer.getDocument().get(); |
| if (name.equals("")) { //$NON-NLS-1$ |
| if (getGenerator().getName() == null) { |
| return; |
| } |
| name = null; |
| } |
| IGenerator generator = getGenerator(); |
| if (generator == null) { |
| generator = createGenerator(); |
| } |
| generator.setName(name); |
| } |
| }); |
| return textViewer; |
| } |
| |
| protected abstract E createGenerator(); |
| |
| @Override |
| protected void doPopulate(EObject obj) { |
| this.id = (IId) obj; |
| if (this.id == null) { |
| this.generator = null; |
| return; |
| } |
| this.generator = generator(this.id); |
| if (this.generator == null) { |
| clear(); |
| return; |
| } |
| populateNameViewer(); |
| return; |
| } |
| |
| @Override |
| protected void doPopulate() { |
| populateNameViewer(); |
| } |
| |
| protected void engageListeners() { |
| if (this.generator != null) { |
| this.generator.eAdapters().add(this.generatorListener); |
| } |
| } |
| |
| protected void disengageListeners() { |
| if (this.generator != null) { |
| this.generator.eAdapters().remove(this.generatorListener); |
| } |
| } |
| |
| protected abstract E generator(IId id); |
| |
| protected IId idMapping() { |
| return this.id; |
| } |
| |
| protected void generatorChanged(Notification notification) { |
| if (notification.getFeatureID(IGenerator.class) == JpaCoreMappingsPackage.IGENERATOR__NAME) { |
| final String name = notification.getNewStringValue(); |
| Display.getDefault().asyncExec(new Runnable() { |
| public void run() { |
| if (getControl().isDisposed()) { |
| return; |
| } |
| if (nameViewer.getDocument().get() == null || !nameViewer.getDocument().get().equals(name)) { |
| if (name == null) { |
| clearNameViewer(); |
| } |
| else { |
| nameViewer.getDocument().set(name); |
| } |
| } |
| } |
| }); |
| } |
| } |
| |
| private void populateNameViewer() { |
| String name = this.getGenerator().getName(); |
| if (name != null) { |
| if (!this.nameViewer.getDocument().get().equals(name)) { |
| this.nameViewer.getDocument().set(name); |
| } |
| } |
| else { |
| this.clearNameViewer(); |
| } |
| } |
| |
| protected E getGenerator() { |
| return this.generator; |
| } |
| |
| protected void clear() { |
| this.clearNameViewer(); |
| } |
| |
| protected void clearNameViewer() { |
| this.nameViewer.getDocument().set(""); //$NON-NLS-1$ |
| } |
| |
| public void dispose() { |
| disengageListeners(); |
| super.dispose(); |
| } |
| } |