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/*****************************************************************************
* Copyright (c) 2013 CEA LIST.
*
*
* 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:
* Camille Letavernier (camille.letavernier@cea.fr) - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.services.navigation.provider.impl;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.core.services.ServicesRegistry;
import org.eclipse.papyrus.infra.services.navigation.provider.NavigationTargetProvider;
import org.eclipse.papyrus.infra.ui.editor.IMultiDiagramEditor;
import org.eclipse.papyrus.infra.widgets.util.IRevealSemanticElement;
import org.eclipse.papyrus.infra.widgets.util.NavigationTarget;
import org.eclipse.papyrus.infra.widgets.util.RevealSemanticElementWrapper;
import org.eclipse.ui.IEditorPart;
/**
* A NavigationTargetProvider to navigate in the current nested active editor
*
* @author Camille Letavernier
*
*/
public class ActiveEditorNavigationTargetProvider implements NavigationTargetProvider {
/**
* {@inheritDoc}
*
* Returns the current active nestedEditor
*/
public NavigationTarget getNavigationTarget(ServicesRegistry registry) {
IMultiDiagramEditor editor;
try {
editor = registry.getService(IMultiDiagramEditor.class);
if (editor == null) {
return null;
}
} catch (ServiceException ex) {
// We're not in the context of the multi diagram editor. We have nothing to contribute.
// Ignore the exception and do not do anything.
return null;
}
IEditorPart activeEditor = editor.getActiveEditor();
if (activeEditor instanceof NavigationTarget) {
return (NavigationTarget) activeEditor;
} else if (activeEditor instanceof IRevealSemanticElement) {
return new RevealSemanticElementWrapper((IRevealSemanticElement) activeEditor);
}
return null;
}
}
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