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/*******************************************************************************
* Copyright (c) 2005, 2009 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
* Brad Reynolds - bug 116920
* Brad Reynolds - bug 160000
* Matthew Hall - bugs 260329, 260337
*******************************************************************************/
package org.eclipse.jface.tests.databinding.scenarios;
import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.jface.databinding.viewers.ViewerSupport;
import org.eclipse.jface.databinding.viewers.ViewersObservables;
import org.eclipse.jface.examples.databinding.model.Adventure;
import org.eclipse.jface.examples.databinding.model.Catalog;
import org.eclipse.jface.examples.databinding.model.Lodging;
import org.eclipse.jface.examples.databinding.model.SampleData;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Combo;
/**
* To run the tests in this class, right-click and select "Run As JUnit Plug-in
* Test". This will also start an Eclipse instance. To clean up the launch
* configuration, open up its "Main" tab and select "[No Application] - Headless
* Mode" as the application to run.
*/
public class ComboViewerScenario extends ScenariosTestCase {
private Catalog catalog;
private Combo combo;
private ComboViewer comboViewer;
protected void setUp() throws Exception {
super.setUp();
// do any setup work here
combo = new Combo(getComposite(), SWT.READ_ONLY | SWT.DROP_DOWN);
comboViewer = new ComboViewer(combo);
catalog = SampleData.CATALOG_2005; // Lodging source
}
protected void tearDown() throws Exception {
combo.dispose();
combo = null;
comboViewer = null;
super.tearDown();
}
public void testScenario01() {
// Bind the catalog's lodgings to the combo
IObservableList lodgings = BeansObservables.observeList(realm, catalog,
"lodgings");
ViewerSupport.bind(comboViewer, lodgings, BeanProperties.value(
Lodging.class, "name"));
// Verify that the combo's items are the lodgings
for (int i = 0; i < catalog.getLodgings().length; i++) {
assertEquals(catalog.getLodgings()[i], comboViewer.getElementAt(i));
}
// Verify that the String being shown in the combo viewer is the
// "toString" of the combo viewer
String[] lodgingStrings = new String[catalog.getLodgings().length];
for (int i = 0; i < catalog.getLodgings().length; i++) {
lodgingStrings[i] = catalog.getLodgings()[i].getName();
}
assertArrayEquals(lodgingStrings, combo.getItems());
// Verify that the combo has no selected item
assertEquals(null, ((IStructuredSelection) comboViewer.getSelection())
.getFirstElement());
// Now bind the selection of the combo to the "defaultLodging" property
// of an adventure
final Adventure adventure = SampleData.WINTER_HOLIDAY;
IObservableValue selection = ViewersObservables
.observeSingleSelection(comboViewer);
getDbc().bindValue(selection,
BeansObservables.observeValue(adventure, "defaultLodging"));
// Verify that the combo selection is the default lodging
assertEquals(((IStructuredSelection) comboViewer.getSelection())
.getFirstElement(), adventure.getDefaultLodging());
// Change the model and verify that the combo selection changes
adventure.setDefaultLodging(SampleData.CAMP_GROUND);
assertEquals(adventure.getDefaultLodging(), SampleData.CAMP_GROUND);
assertEquals(((IStructuredSelection) comboViewer.getSelection())
.getFirstElement(), adventure.getDefaultLodging());
// Change the combo selection and verify that the model changes
comboViewer.getCombo().select(3);
assertEquals(((IStructuredSelection) comboViewer.getSelection())
.getFirstElement(), adventure.getDefaultLodging());
adventure.setDefaultLodging(SampleData.YOUTH_HOSTEL);
spinEventLoop(0);
assertEquals(((IStructuredSelection) comboViewer.getSelection())
.getFirstElement(), adventure.getDefaultLodging());
}
}
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