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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 org.eclipse.core.resources.IProject;
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.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.search.IJavaSearchScope;
import org.eclipse.jdt.core.search.SearchEngine;
import org.eclipse.jdt.internal.ui.refactoring.contentassist.ControlContentAssistHelper;
import org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor;
import org.eclipse.jdt.ui.IJavaElementSearchConstants;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.window.Window;
import org.eclipse.jpt.core.internal.content.orm.OrmPackage;
import org.eclipse.jpt.core.internal.content.orm.XmlPersistentType;
import org.eclipse.jpt.core.internal.content.orm.XmlTypeMapping;
import org.eclipse.jpt.ui.internal.JptUiPlugin;
import org.eclipse.jpt.ui.internal.details.BaseJpaController;
import org.eclipse.jpt.ui.internal.xml.JptUiXmlMessages;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.SelectionDialog;
import org.eclipse.ui.progress.IProgressService;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
//TODO possibly help the user and if they have chosen a package at the entity-mappings level
//only insert the class name in the xml file if they choose a class from the package.
//Not sure if this should be driven by the UI or by ui api in the model
public class XmlJavaClassChooser extends BaseJpaController
{
private XmlPersistentType persistentType;
private Adapter persistentTypeListener;
private Composite composite;
private Text text;
private JavaTypeCompletionProcessor javaTypeCompletionProcessor;
public XmlJavaClassChooser(Composite parent, CommandStack theCommandStack, TabbedPropertySheetWidgetFactory widgetFactory) {
super(parent, theCommandStack, widgetFactory);
buildPersistentTypeListener();
}
private void buildPersistentTypeListener() {
persistentTypeListener = new AdapterImpl() {
public void notifyChanged(Notification notification) {
persistentTypeChanged(notification);
}
};
}
@Override
protected void buildWidget(Composite parent) {
this.composite = getWidgetFactory().createComposite(parent);
GridLayout gridLayout = new GridLayout();
gridLayout.marginHeight = 0;
gridLayout.marginWidth = 1;
gridLayout.numColumns = 2;
this.composite.setLayout(gridLayout);
text = getWidgetFactory().createText(this.composite, "");
GridData data = new GridData();
data.grabExcessHorizontalSpace = true;
data.horizontalAlignment = GridData.FILL;
this.text.setLayoutData(data);
text.addModifyListener(
new ModifyListener() {
public void modifyText(ModifyEvent e) {
textModified(e);
}
});
//TODO bug 156185 - when this is fixed there should be api for this
this.javaTypeCompletionProcessor = new JavaTypeCompletionProcessor(false, false);
ControlContentAssistHelper.createTextContentAssistant(this.text, this.javaTypeCompletionProcessor);
Button browseButton = getWidgetFactory().createButton(this.composite, "Browse...", SWT.FLAT);
data = new GridData();
browseButton.setLayoutData(data);
browseButton.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
IType type = chooseType();
if (type != null) {
text.setText(type.getFullyQualifiedName());
}
}
public void widgetDefaultSelected(SelectionEvent e) {
IType type = chooseType();
if (type != null) {
text.setText(type.getFullyQualifiedName());
}
}
});
}
private void textModified(ModifyEvent e) {
if (isPopulating()) {
return;
}
String text = ((Text) e.getSource()).getText();
persistentType.setClass(text);
// TODO Does this need to be done?
//this.editingDomain.getCommandStack().execute(SetCommand.create(this.editingDomain, this.entity, MappingsPackage.eINSTANCE.getEntity_SpecifiedName(), text));
}
protected IType chooseType() {
IPackageFragmentRoot root= getPackageFragmentRoot();
if (root == null) {
return null;
}
IJavaElement[] elements= new IJavaElement[] { root.getJavaProject() };
IJavaSearchScope scope= SearchEngine.createJavaSearchScope(elements);
IProgressService service = PlatformUI.getWorkbench().getProgressService();
SelectionDialog typeSelectionDialog;
try {
typeSelectionDialog = JavaUI.createTypeDialog(this.text.getShell(), service, scope, IJavaElementSearchConstants.CONSIDER_CLASSES, false, getType());
}
catch (JavaModelException e) {
JptUiPlugin.log(e);
throw new RuntimeException(e);
}
typeSelectionDialog.setTitle(JptUiXmlMessages.XmlJavaClassChooser_XmlJavaClassDialog_title);
typeSelectionDialog.setMessage(JptUiXmlMessages.XmlJavaClassChooser_XmlJavaClassDialog_message);
if (typeSelectionDialog.open() == Window.OK) {
return (IType) typeSelectionDialog.getResult()[0];
}
return null;
}
private String getType() {
return this.text.getText();
}
private IPackageFragmentRoot getPackageFragmentRoot() {
IProject project = this.persistentType.getJpaProject().getProject();
IJavaProject root = JavaCore.create(project);
try {
return root.getAllPackageFragmentRoots()[0];
}
catch (JavaModelException e) {
JptUiPlugin.log(e);
}
return null;
}
private void persistentTypeChanged(Notification notification) {
if (notification.getFeatureID(XmlPersistentType.class) ==
OrmPackage.XML_PERSISTENT_TYPE__CLASS) {
Display.getDefault().asyncExec(
new Runnable() {
public void run() {
populate();
}
});
}
}
@Override
protected void engageListeners() {
if (persistentType != null) {
persistentType.eAdapters().add(persistentTypeListener);
}
}
@Override
protected void disengageListeners() {
if (persistentType != null) {
persistentType.eAdapters().remove(persistentTypeListener);
}
}
@Override
public void doPopulate(EObject obj) {
persistentType = (obj == null) ? null : ((XmlTypeMapping) obj).getPersistentType();
populateText();
}
@Override
protected void doPopulate() {
populateText();
}
private void populateText() {
if (persistentType == null) {
text.clearSelection();
return;
}
IPackageFragmentRoot root = getPackageFragmentRoot();
if (root != null) {
this.javaTypeCompletionProcessor.setPackageFragment(root.getPackageFragment(""));
}
String javaClass = persistentType.getClass_();
if (javaClass == null) {
setTextData("");
}
else {
setTextData(javaClass);
}
}
private void setTextData(String textData) {
if (! textData.equals(text.getText())) {
text.setText(textData);
}
}
public Control getControl() {
return this.composite;
}
}
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