/*******************************************************************************
* Copyright (c) 2007, 2015 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.ui.internal;
import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.ui.IPerspectiveDescriptor;
import org.eclipse.ui.IWorkbenchPage;
/**
* Tests if any Perspective is open or not.
*
* @since 3.3
*
*/
public class OpenPerspectivePropertyTester extends PropertyTester {
private static final String PROPERTY_IS_PERSPECTIVE_OPEN = "isPerspectiveOpen"; //$NON-NLS-1$
@Override
public boolean test(Object receiver, String property, Object[] args,
Object expectedValue) {
if (args.length == 0 && receiver instanceof WorkbenchWindow) {
final WorkbenchWindow window = (WorkbenchWindow) receiver;
if (PROPERTY_IS_PERSPECTIVE_OPEN.equals(property)) {
IWorkbenchPage page = window.getActivePage();
if (page != null) {
IPerspectiveDescriptor persp = page.getPerspective();
if (persp != null) {
return true;
}
}
}
}
return false;
}
}