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/*******************************************************************************
* Copyright (c) 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.ui;
/**
* Extension interface to <code>IPerspectiveListener</code> which adds support
* for listening to perspective pre-deactivate events.
* <p>
* This interface may be implemented by clients.
* </p>
*
* @see IPageService#addPerspectiveListener(IPerspectiveListener)
* @see PerspectiveAdapter
* @since 1.0
*
*/
public interface IPerspectiveListener4 extends IPerspectiveListener3 {
/**
* <p>
* Notifies this listener that a perspective in the given page is about to
* be deactivated.
* </p>
* <p>
* Note: This does not have the ability to veto a perspective deactivation.
* </p>
*
* @param page
* the page containing the deactivated perspective
* @param perspective
* the perspective descriptor that was deactivated
* @see IWorkbenchPage#setPerspective(IPerspectiveDescriptor)
*/
public void perspectivePreDeactivate(IWorkbenchPage page,
IPerspectiveDescriptor perspective);
}