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/*******************************************************************************
* Copyright (c) 2006, 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.xml.details;
import java.util.Iterator;
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.jpt.core.internal.IJpaContentNode;
import org.eclipse.jpt.core.internal.IPersistentType;
import org.eclipse.jpt.core.internal.content.orm.OrmPackage;
import org.eclipse.jpt.core.internal.content.orm.XmlAttributeMapping;
import org.eclipse.jpt.core.internal.content.orm.XmlPersistentAttribute;
import org.eclipse.jpt.core.internal.content.orm.XmlPersistentType;
import org.eclipse.jpt.ui.internal.details.PersistentAttributeDetailsPage;
import org.eclipse.jpt.ui.internal.widgets.CComboViewer;
import org.eclipse.jpt.utility.internal.iterators.ArrayIterator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.part.PageBook;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
public class XmlPersistentAttributeDetailsPage
extends PersistentAttributeDetailsPage
{
private XmlJavaAttributeChooser javaAttributeChooser;
private Adapter persistentTypeListener;
private IPersistentType persistentType;
public XmlPersistentAttributeDetailsPage(Composite parent, TabbedPropertySheetWidgetFactory widgetFactory) {
super(parent, widgetFactory);
buildPersistentTypeListener();
}
private void buildPersistentTypeListener() {
this.persistentTypeListener = new AdapterImpl() {
@Override
public void notifyChanged(Notification notification) {
persistentTypeChanged(notification);
}
};
}
void persistentTypeChanged(Notification notification) {
if (notification.getFeatureID(XmlPersistentType.class) ==
OrmPackage.XML_PERSISTENT_TYPE__SPECIFIED_ATTRIBUTE_MAPPINGS) {
Display.getDefault().asyncExec(
new Runnable() {
public void run() {
updateEnbabledState();
}
});
}
}
@Override
protected void initializeLayout(Composite composite) {
composite.setLayout(new GridLayout(2, false));
GridData gridData;
CommonWidgets.buildJavaAttributeNameLabel(composite, getWidgetFactory());
this.javaAttributeChooser = CommonWidgets.buildJavaAttributeChooser(composite, this.commandStack, getWidgetFactory());
gridData = new GridData();
gridData.horizontalAlignment = SWT.FILL;
gridData.verticalAlignment = SWT.BEGINNING;
gridData.grabExcessHorizontalSpace = true;
this.javaAttributeChooser.getControl().setLayoutData(gridData);
buildMappingLabel(composite);
CComboViewer mappingCombo = buildMappingCombo(composite);
gridData = new GridData();
gridData.horizontalAlignment = SWT.FILL;
gridData.verticalAlignment = SWT.BEGINNING;
gridData.grabExcessHorizontalSpace = true;
mappingCombo.getCombo().setLayoutData(gridData);
PageBook book = buildMappingPageBook(composite);
gridData = new GridData();
gridData.horizontalAlignment = SWT.FILL;
gridData.verticalAlignment = SWT.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.grabExcessVerticalSpace = true;
gridData.horizontalSpan = 2;
book.setLayoutData(gridData);
}
@Override
protected void engageListeners() {
super.engageListeners();
if (getAttribute() != null) {
this.persistentType = getAttribute().typeMapping().getPersistentType();
this.persistentType.eAdapters().add(this.persistentTypeListener);
}
}
@Override
protected void disengageListeners() {
if (this.persistentType != null) {
this.persistentType.eAdapters().remove(this.persistentTypeListener);
this.persistentType = null;
}
super.disengageListeners();
}
@Override
protected void doPopulate(IJpaContentNode persistentAttributeNode) {
super.doPopulate(persistentAttributeNode);
if (persistentAttributeNode == null) {
this.javaAttributeChooser.populate(null);
}
else {
XmlAttributeMapping mapping = ((XmlPersistentAttribute) persistentAttributeNode).getMapping();
this.javaAttributeChooser.populate(mapping);
updateEnbabledState();
}
}
@Override
protected void doPopulate() {
super.doPopulate();
this.javaAttributeChooser.populate();
updateEnbabledState();
}
@Override
public void dispose() {
this.javaAttributeChooser.dispose();
super.dispose();
}
public void updateEnbabledState() {
if (getAttribute() == null || getAttribute().eContainer() == null) {
return;
}
boolean enabled = !((XmlPersistentAttribute) getAttribute()).isVirtual();
updateEnabledState(enabled, getControl());
}
public void updateEnabledState(boolean enabled, Control control) {
control.setEnabled(enabled);
if (control instanceof Composite) {
for (Iterator<Control> i = new ArrayIterator<Control>(((Composite) control).getChildren()); i.hasNext(); ) {
updateEnabledState(enabled, i.next());
}
}
}
}
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