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/*******************************************************************************
* 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
*******************************************************************************/
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());
}
}
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