/*******************************************************************************
* Copyright (c) 2000, 2006 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
* Michael Fraenkel (fraenkel@us.ibm.com) - contributed a fix for:
* o Go to next match on last match does nothing
* (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=58311)
*******************************************************************************/
package org.eclipse.search2.internal.ui.basic.views;
import org.eclipse.jface.viewers.TableViewer;
public class TableViewerNavigator implements INavigate {
private TableViewer fViewer;
public TableViewerNavigator(TableViewer viewer) {
fViewer = viewer;
}
@Override
public void navigateNext(boolean forward) {
int itemCount = fViewer.getTable().getItemCount();
if (itemCount == 0)
return;
int[] selection = fViewer.getTable().getSelectionIndices();
int nextIndex = 0;
if (selection.length > 0) {
if (forward) {
nextIndex = selection[selection.length - 1] + 1;
if (nextIndex >= itemCount)
nextIndex = 0;
} else {
nextIndex = selection[0] - 1;
if (nextIndex < 0)
nextIndex = itemCount - 1;
}
}
fViewer.getTable().setSelection(nextIndex);
fViewer.getTable().showSelection();
}
}