| /******************************************************************************* |
| * Copyright (c) 2007, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * 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; |
| } |
| |
| } |
