/*****************************************************************************
* Copyright (c) 2009 CEA LIST & LIFL
*
*
* 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:
* Cedric Dumoulin Cedric.dumoulin@lifl.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.core.sasheditor.editor.actionbarcontributor;
import org.eclipse.ui.IEditorPart;
/**
* Interface implemented by ActionBarContributor dedicated to MultiEditor.
* ActionBarContributor that want to be advised of a page change should implement this interface.
* Another way should be to use a Observer/Observee mechanism, allowing to remove the dependancy
* from the editor to the ActionBarContributor ?
*
* @author dumoulin
*
*/
public interface IMultiPageEditorActionBarContributor {
/**
* Sets the active page of the the multi-page editor to be the given editor. Redirect actions to the given editor if actions are not already being
* sent to it.
* <p>
* This method is called whenever the page changes. Subclasses must implement this method to redirect actions to the given editor (if not already
* directed to it).
* </p>
*
* @param activeEditor
* the new active editor, or <code>null</code> if there is no active page, or if the active page does not have a corresponding editor
*/
public abstract void setActivePage(IEditorPart activeEditor);
}