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/*******************************************************************************
* Copyright (c) 2009, 2011, 2012 Mia-Software.
* 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:
* Nicolas Bros (Mia-Software) - initial API and implementation
* Alban Ménager (Soft-Maint) - Bug 387470 - [EFacet][Custom] Editors
* Grégoire Dupé (Mia-Software) - Bug 387470 - [EFacet][Custom] Editors
*******************************************************************************/
package org.eclipse.papyrus.emf.facet.util.emf.ui.internal.exported.util.wizard.page;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EDataType;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.ETypedElement;
import org.eclipse.papyrus.emf.facet.util.core.DebugUtils;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.Activator;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.Messages;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.exported.util.composite.EClassifierSelectionControl;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.exported.util.wizard.page.exception.SelectedEClassifierRuntimeException;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.exported.wizard.page.ISelectEClassifierWizardPage;
import org.eclipse.papyrus.emf.facet.util.emf.ui.internal.exported.wizard.page.ISelectEPackageWizardPage;
import org.eclipse.jface.wizard.WizardPage;
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.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.dialogs.FilteredList;
/**
* @since 0.3
*/
public class SelectEClassifierWizardPage<T extends EClassifier> extends
WizardPage implements ISelectEClassifierWizardPage<T> {
private static final boolean DEBUG = DebugUtils.getDebugStatus(Activator
.getDefault());
private EClassifierSelectionControl<T> eClassSelection;
private final Class<? extends T> eTypeOption;
private String metamodelNsUri;
public SelectEClassifierWizardPage(final Class<? extends T> eTypeOption,
final EPackage ePackage) {
super("Whatever"); //$NON-NLS-1$
if (eTypeOption == EClass.class) {
setTitle(Messages.Select_EClass);
} else if (eTypeOption == EDataType.class) {
setTitle(Messages.Select_EDataType);
} else if (eTypeOption == EClassifier.class) {
setTitle(Messages.Select_EClassifier);
} else if (eTypeOption == ETypedElement.class) {
setTitle(Messages.Select_ETypedElement);
}
if (ePackage != null) {
this.metamodelNsUri = ePackage.getNsURI();
}
this.eTypeOption = eTypeOption;
}
@Override
public boolean isPageComplete() {
return this.eClassSelection.getSelectedEClassifier() != null;
}
@Override
public void setVisible(final boolean visible) {
super.setVisible(visible);
if (getPreviousPage() instanceof SelectEPackageWizardPage) {
final ISelectEPackageWizardPage selectEPackage = (ISelectEPackageWizardPage) getPreviousPage();
this.metamodelNsUri = selectEPackage.getSelectedEPackage()
.getNsURI();
if (this.metamodelNsUri != null) {
setDescription(selectEPackage.getSelectedEPackage()
.getNsURI());
}
}
this.eClassSelection.updateList(this.metamodelNsUri);
}
public void createControl(final Composite parent) {
this.eClassSelection = new EClassifierSelectionControl<T>(parent,
this.metamodelNsUri, this.eTypeOption);
final FilteredList filteredList = this.eClassSelection
.getFilteredList();
filteredList.addSelectionListener(new SelectionListener() {
public void widgetSelected(final SelectionEvent event) {
if (event.item != null) {
updateButton();
// setPageComplete(filteredList.getSelection().length == 1);
}
}
public void widgetDefaultSelected(final SelectionEvent event) {
if (getWizard().canFinish()) {
getWizard().performFinish();
}
if (getNextPage() != null) {
goToNextPage();
}
}
});
this.eClassSelection.getFilterText().addModifyListener(
new ModifyListener() {
public void modifyText(final ModifyEvent event) {
updateButton();
}
});
// avoid the page being "complete" when still on a previous page
filteredList.setSelection(new int[0]);
setPageComplete(false);
setControl(this.eClassSelection);
}
protected void goToNextPage() {
getContainer().showPage(getNextPage());
}
protected void updateButton() {
if ((getContainer() != null) && (getContainer().getCurrentPage() != null)) {
getContainer().updateButtons();
}
}
public T getSelectedEClassifier() {
return this.eClassSelection.getSelectedEClassifier();
}
/**
* Select the <code>eclassifierName</code> into the list.
*
* @param eclassifierName
* the name of the classifier to select.
*/
public void selectEClassifier(final String eclassifierName) {
DebugUtils.debug(DEBUG);
boolean doItNow = true;
// We get all the jobs
for (final Job job : Job.getJobManager().find(null)) {
// We check if the job of 'FilteredList' is ended. If not, we
// recursively call this method to check again without interfering
// with the 'FilteredList' job (doing an asynchrony call).
if (job.getClass().getName()
.startsWith(FilteredList.class.getName())) {
asyncSelectionClassifier(eclassifierName);
DebugUtils.debug(DEBUG, "Selection defered."); //$NON-NLS-1$
doItNow = false;
break;
}
}
// If the job 'FilteredList' is done, we can do the selection.
if (doItNow) {
internalSelectEClassifier(eclassifierName);
}
}
private void asyncSelectionClassifier(final String eclassifierName) {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
selectEClassifier(eclassifierName);
}
});
}
private void internalSelectEClassifier(final String packageName) {
final FilteredList filteredList = this.eClassSelection
.getFilteredList();
filteredList.setSelection(new String[] { packageName });
if (getSelectedEClassifier() == null) {
throw new SelectedEClassifierRuntimeException();
}
DebugUtils.debug(DEBUG, "Selection setting finished."); //$NON-NLS-1$
DebugUtils.debug(DEBUG,
"selectedEClassifier=" + getSelectedEClassifier()); //$NON-NLS-1$
}
}
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