| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.tests.viewers.interactive; |
| |
| import org.eclipse.jface.tests.viewers.TestElement; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| |
| public abstract class TestSelectionAction extends TestBrowserAction implements ISelectionChangedListener { |
| public TestSelectionAction(String label, TestBrowser browser) { |
| super(label, browser); |
| browser.getViewer().addSelectionChangedListener(this); |
| setEnabled(false); |
| } |
| public TestElement getTestElement(ISelection selection) { |
| if (selection instanceof IStructuredSelection) { |
| return (TestElement) ((IStructuredSelection) selection).getFirstElement(); |
| } |
| return null; |
| } |
| /** |
| * Overridden from Action. |
| */ |
| public void run() { |
| TestElement testElement = getTestElement(getBrowser().getViewer().getSelection()); |
| if (testElement != null) { |
| run(testElement); |
| } |
| } |
| /** |
| * The default implementation calls run(TestElement) |
| * on every element contained in the vector. |
| */ |
| public void run(TestElement o) { |
| } |
| public void selectionChanged(SelectionChangedEvent event) { |
| setEnabled(!event.getSelection().isEmpty()); |
| } |
| } |