tests/org.eclipse.rap.rwt.test/src/org/eclipse/swt/internal/widgets/listkit/ListLCA_Test.java

/*******************************************************************************
 * Copyright (c) 2002-2006 Innoopract Informationssysteme GmbH.
 * 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:
 *     Innoopract Informationssysteme GmbH - initial API and implementation
 ******************************************************************************/

package org.eclipse.swt.internal.widgets.listkit;

import java.io.IOException;
import java.util.Arrays;
import junit.framework.TestCase;
import org.eclipse.swt.RWTFixture;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.internal.widgets.IListAdapter;
import org.eclipse.swt.lifecycle.*;
import org.eclipse.swt.widgets.*;
import com.w4t.Fixture;

// TODO [rh] tests for selectionEvent (proper event fields and so on)
public class ListLCA_Test extends TestCase {

  public void testReadDataForSingle() {
    Display display = new Display();
    Shell shell = new Shell( display, SWT.NONE );
    List list = new List( shell, SWT.SINGLE );
    list.add( "item1" );
    list.add( "item2" );
    list.add( "item3" );
    AbstractWidgetLCA lca = WidgetUtil.getLCA( list );
    String listId = WidgetUtil.getId( list );
    // Test initial state for the followin tests
    assertEquals( -1, list.getSelectionIndex() );
    
    // Fake request that selected a single item
    Fixture.fakeRequestParam( listId + ".selection", "0" );
    lca.readData( list );
    assertEquals( 0, list.getSelectionIndex() );
    
    // Fake request that does not contain a selection parameter
    list.setSelection( 1 );
    Fixture.fakeRequestParam( listId + ".selection", null );
    lca.readData( list );
    assertEquals( 1, list.getSelectionIndex() );

    // Fake request that contains empty selection parameter -> must deselect all
    list.setSelection( 1 );
    Fixture.fakeRequestParam( listId + ".selection", "" );
    lca.readData( list );
    assertEquals( -1, list.getSelectionIndex() );
  }
  
  public void testReadDataForMulti() {
    Display display = new Display();
    Shell shell = new Shell( display, SWT.NONE );
    List list = new List( shell, SWT.MULTI );
    list.add( "item1" );
    list.add( "item2" );
    list.add( "item3" );
    AbstractWidgetLCA lca = WidgetUtil.getLCA( list );
    String listId = WidgetUtil.getId( list );
    // Test initial state for the followin tests
    assertEquals( -1, list.getSelectionIndex() );
    
    // Fake request that selected 'item1' and 'item2'
    Fixture.fakeRequestParam( listId + ".selection", "0,1" );
    lca.readData( list );
    assertEquals( 0, list.getSelectionIndex() );
    int[] expected = new int[] { 0, 1 };
    assertTrue( Arrays.equals( expected, list.getSelectionIndices() ) );
    
    // Fake request that does not contain a selection parameter
    list.setSelection( 1 );
    Fixture.fakeRequestParam( listId + ".selection", null );
    lca.readData( list );
    assertEquals( 1, list.getSelectionIndex() );
  }
  
  public void testSelectionEvent() {
    final StringBuffer log = new StringBuffer();
    Display display = new Display();
    Shell shell = new Shell( display, SWT.NONE );
    final List list = new List( shell, SWT.SINGLE );
    list.add( "item1" );
    list.add( "item2" );
    list.setSelection( -1 );
    list.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( final SelectionEvent event ) {
        log.append( "selectionEvent" );
        assertSame( list, event.getSource() );
        assertEquals( 0, event.detail );
        assertEquals( 0, event.x );
        assertEquals( 0, event.y );
        assertEquals( 0, event.width );
        assertEquals( 0, event.height );
        assertEquals( null, event.item );
        assertEquals( true, event.doit );
      }
    } );
    String listId = WidgetUtil.getId( list );
    Fixture.fakeRequestParam( listId + ".selection", "1" );
    Fixture.fakeRequestParam( JSConst.EVENT_WIDGET_SELECTED, listId );
    RWTFixture.readDataAndProcessAction( list );
    assertEquals( "selectionEvent", log.toString() );
    assertEquals( 1, list.getSelectionIndex() );
  }
  
  public void testRenderSetItems() throws IOException {
    Display display = new Display();
    Shell shell = new Shell( display, SWT.NONE );
    List list = new List( shell, SWT.SINGLE );
    
    // Ensure that changed items are rendered
    RWTFixture.markInitialized( display );
    RWTFixture.markInitialized( list );
    Fixture.fakeResponseWriter();
    RWTFixture.preserveWidgets();
    AbstractWidgetLCA listLCA = WidgetUtil.getLCA( list );
    list.setItems( new String[] { "a" } );
    listLCA.renderChanges( list );
    assertTrue( Fixture.getAllMarkup().indexOf( "setItems" ) != -1 );

    // Ensure that unchanged items do not cause unnecessary JavaScript code
    RWTFixture.markInitialized( list );
    Fixture.fakeResponseWriter();
    RWTFixture.preserveWidgets();
    listLCA.renderChanges( list );
    assertTrue( Fixture.getAllMarkup().indexOf( "setItems" ) == -1 );
  }
  
  public void testFocusedItem() {
    Display display = new Display();
    Composite shell = new Shell( display , SWT.NONE );
    List list = new List( shell, SWT.NONE );
    list.add( "item0" );
    list.add( "item1" );
    list.add( "item2" );
    String listId = WidgetUtil.getId( list );
    
    // Test with focusIndex -1
    setFocusIndex( list, 0 );
    Fixture.fakeRequestParam( listId + ".focusIndex", "-1" );
    RWTFixture.readDataAndProcessAction( list );
    assertEquals( -1, list.getFocusIndex() );

    // Test with value focusIndex
    setFocusIndex( list, 0 );
    Fixture.fakeRequestParam( listId + ".focusIndex", "1" );
    RWTFixture.readDataAndProcessAction( list );
    assertEquals( 1, list.getFocusIndex() );
    
    // Test with focusIndex out of range
    setFocusIndex( list, 0 );
    Fixture.fakeRequestParam( listId + ".focusIndex", "22" );
    RWTFixture.readDataAndProcessAction( list );
    assertEquals( 0, list.getFocusIndex() );
  }
  
  private static void setFocusIndex( final List list, final int focusIndex ) {
    Object adapter = list.getAdapter( IListAdapter.class );
    IListAdapter listAdapter = ( IListAdapter )adapter;
    listAdapter.setFocusIndex( focusIndex );
  }
  
  protected void setUp() throws Exception {
    RWTFixture.setUp();
  }

  protected void tearDown() throws Exception {
    RWTFixture.tearDown();
  }
}