es.cv.gvcase.mdt.common.actions.OpenUpperDiagramPopupMenuContributionPolicy.java Source code

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Here is the source code for es.cv.gvcase.mdt.common.actions.OpenUpperDiagramPopupMenuContributionPolicy.java

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/***************************************************************************
 * Copyright (c) 2008 Conselleria de Infraestructuras y Transporte,
 * Generalitat de la Comunitat Valenciana . 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: Francisco Javier Cano Muoz (Prodevelop)  initial API and implementation
 *
 ******************************************************************************/

package es.cv.gvcase.mdt.common.actions;

import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.gmf.runtime.common.ui.services.action.contributionitem.IPopupMenuContributionPolicy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.PlatformUI;

import es.cv.gvcase.mdt.common.part.CachedResourcesDiagramEditor;
import es.cv.gvcase.mdt.common.part.MOSKittMultiPageEditor;
import es.cv.gvcase.mdt.common.util.MultiDiagramUtil;

// TODO: Auto-generated Javadoc
/**
 * The Class OpenUpperDiagramPopupMenuContributionPolicy.
 */
public class OpenUpperDiagramPopupMenuContributionPolicy implements IPopupMenuContributionPolicy {

    /*
     * (non-Javadoc)
     * 
     * @seeorg.eclipse.gmf.runtime.common.ui.services.action.contributionitem.
     * IPopupMenuContributionPolicy
     * #appliesTo(org.eclipse.jface.viewers.ISelection,
     * org.eclipse.core.runtime.IConfigurationElement)
     */
    public boolean appliesTo(ISelection selection, IConfigurationElement configuration) {
        IEditorPart activeEditor = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
                .getActiveEditor();
        if (activeEditor instanceof CachedResourcesDiagramEditor == false
                && activeEditor instanceof MOSKittMultiPageEditor == false) {
            return false;
        }

        if (selection instanceof StructuredSelection) {
            StructuredSelection ss = (StructuredSelection) selection;
            if (ss.size() <= 0 || ss.size() > 1) {
                return false;
            }
            Object object = ss.getFirstElement();
            if (object instanceof IGraphicalEditPart) {
                if (((IGraphicalEditPart) object).getNotationView() instanceof Diagram) {
                    Diagram diagram = (Diagram) ((IGraphicalEditPart) object).getNotationView();
                    if (MultiDiagramUtil.getUpperDiagram(diagram) != null) {
                        return true;
                    }
                }
            }
        }

        return false;
    }

}