Java tutorial
/******************************************************************************* * Copyright (c) 2006-2013 The RCP Company 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: * The RCP Company - initial API and implementation *******************************************************************************/ package com.rcpcompany.uibindings.extests.viewerBindings; import static com.rcpcompany.test.utils.BaseTestUtils.*; import static com.rcpcompany.test.utils.ui.UITestUtils.*; import static org.junit.Assert.*; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.jface.viewers.ColumnViewerEditor; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.jface.viewers.ViewerCell; import org.eclipse.jface.viewers.ViewerRow; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.forms.widgets.TableWrapData; import org.eclipse.ui.forms.widgets.TableWrapLayout; import org.junit.After; import org.junit.Before; import org.junit.Test; import com.rcpcompany.uibindings.IBindingContext; import com.rcpcompany.uibindings.IManager; import com.rcpcompany.uibindings.IViewerBinding; import com.rcpcompany.uibindings.TextCommitStrategy; import com.rcpcompany.uibindings.moao.IMOAOPackage; import com.rcpcompany.uibindings.tests.shop.Country; import com.rcpcompany.uibindings.tests.shop.Shop; import com.rcpcompany.uibindings.tests.shop.ShopFactory; import com.rcpcompany.uibindings.tests.shop.ShopPackage; import com.rcpcompany.uibindings.tests.utils.BaseUIBTestUtils; import com.rcpcompany.uibindings.tests.utils.views.UIBTestView; /** * Tests that selections works for viewers. Also that a selection change event is issued properly. * * @author Tonny Madsen, The RCP Company */ public class ViewerSingleSelectionTest { private Shop myShop; private Country myCountry1; private Country myCountry2; private Country myCountry3; private Country myCountry4; private UIBTestView myView; private Composite myBody; private Text myEmptyText; private TableViewer myTableViewer; private Table myTable; private TableViewerColumn myNameColumn; private IBindingContext myContext; private IViewerBinding myViewerBinding; private Text myNameText; @Before public void before() { BaseUIBTestUtils.resetAll(); IManager.Factory.getManager().setTextCommitStrategy(TextCommitStrategy.ON_MODIFY); IManager.Factory.getManager().setEditCellSingleClick(false); createShop(); createView(); bindUI(); myView.getSite().getPage().activate(myView); myBody.layout(); } @After public void after() { IManager.Factory.getManager().setEditCellSingleClick(true); } /** * Creates the shop itself */ public void createShop() { myShop = ShopFactory.eINSTANCE.createShop(); myCountry1 = ShopFactory.eINSTANCE.createCountry(); myCountry1.setName("1"); myShop.getCountries().add(myCountry1); myCountry2 = ShopFactory.eINSTANCE.createCountry(); myCountry2.setName("2"); myShop.getCountries().add(myCountry2); myCountry3 = ShopFactory.eINSTANCE.createCountry(); myCountry3.setName("3"); myShop.getCountries().add(myCountry3); myCountry4 = ShopFactory.eINSTANCE.createCountry(); myCountry4.setName("4"); myShop.getCountries().add(myCountry4); } /** * Creates the view */ public void createView() { myView = BaseUIBTestUtils.createUIBTestView(this); myBody = myView.getBody(); myBody.setLayout(new TableWrapLayout()); myEmptyText = myView.getToolkit().createText(myBody, ""); myTableViewer = new TableViewer(myBody, SWT.FULL_SELECTION | SWT.BORDER); myTable = myTableViewer.getTable(); myTable.setLayoutData(new TableWrapData(TableWrapData.FILL)); myTable.setHeaderVisible(true); myNameColumn = new TableViewerColumn(myTableViewer, SWT.NONE); myNameColumn.getColumn().setWidth(100); myNameText = myView.getToolkit().createText(myBody, ""); } @After public void disposeView() { if (myView != null) { myView.getSite().getPage().hideView(myView); } } /** * Binds the UI */ public void bindUI() { myContext = IBindingContext.Factory.createContext(myView.getScrolledForm()); myViewerBinding = myContext.addViewer(myTableViewer, myShop, ShopPackage.Literals.SHOP__COUNTRIES); myViewerBinding.addColumn(myNameColumn, IMOAOPackage.Literals.NAMED_OBJECT__NAME); final IObservableValue selection = myViewerBinding.getSingleSelection(); myContext.addBinding(myNameText, selection, IMOAOPackage.Literals.NAMED_OBJECT__NAME); myContext.finish(); yield(); } /** * Checks the initial selection */ @Test public void testInitialSelection() { checkSelection(myCountry1, null); } /** * Checks the change of the selection of the {@link Table}. */ @Test public void testChangeOfTableSelection() { checkSelection(myCountry3, new Runnable() { @Override public void run() { myTable.setSelection(2); } }); } /** * Checks the change of the selection of the {@link TableViewer}. */ @Test public void testChangeOfTableViewerSelection() { checkSelection(myCountry4, new Runnable() { @Override public void run() { myTableViewer.setSelection(new StructuredSelection(myCountry4)); } }); } /** * Checks the change of the selection of the {@link TableViewer}. */ @Test public void testChangeOfTableViewerRevealSelection() { checkSelection(myCountry4, new Runnable() { @Override public void run() { myTableViewer.setSelection(new StructuredSelection(myCountry4), true); } }); } /** * @param c the expected selected country * @param runnable a {@link Runnable} that will perform the selection */ protected void checkSelection(Country c, Runnable runnable) { yield(); if (runnable != null) { final boolean[] selectionChangedSeen = new boolean[] { false }; final ISelectionChangedListener listener = new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { // LogUtils.debug(this, ""); selectionChangedSeen[0] = true; } }; myTableViewer.addSelectionChangedListener(listener); assertNoLog(runnable); yield(); myTableViewer.removeSelectionChangedListener(listener); assertTrue("no selection change seen", selectionChangedSeen[0]); } final int i = myShop.getCountries().indexOf(c); assertEquals(i, myTable.getSelectionIndex()); assertArrayEquals(new Object[] { c }, ((IStructuredSelection) myTableViewer.getSelection()).toArray()); assertEquals(c.getName(), myNameText.getText()); final ColumnViewerEditor columnViewerEditor = myTableViewer.getColumnViewerEditor(); assertNotNull(columnViewerEditor); final ViewerCell focusCell = columnViewerEditor.getFocusCell(); assertNotNull(focusCell); final ViewerRow viewerRow = focusCell.getViewerRow(); assertNotNull(viewerRow); assertEquals(c, viewerRow.getElement()); } }