eu.geclipse.workflow.ui.navigator.WorkflowNavigatorLinkHelper.java Source code

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Here is the source code for eu.geclipse.workflow.ui.navigator.WorkflowNavigatorLinkHelper.java

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/*******************************************************************************
 * Copyright (c) 2006, 2007 g-Eclipse Consortium 
 * 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 
 * 
 * Initial development of the original code was made for the g-Eclipse project 
 * funded by European Union project number: FP6-IST-034327 
 * http://www.geclipse.eu/
 *  
 * Contributors:
 *     RUR (http://acet.rdg.ac.uk/)
 *     - Ashish Thandavan - initial API and implementation
 ******************************************************************************/
package eu.geclipse.workflow.ui.navigator;

import java.util.Iterator;
import org.eclipse.core.resources.IFile;
import org.eclipse.emf.common.ui.URIEditorInput;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.workspace.util.WorkspaceSynchronizer;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalViewer;
import org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditor;
import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDiagramDocument;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.navigator.ILinkHelper;
import org.eclipse.ui.part.FileEditorInput;

import eu.geclipse.workflow.ui.internal.WorkflowDiagramEditorPlugin;

/**
 * @generated
 */
public class WorkflowNavigatorLinkHelper implements ILinkHelper {

    /**
     * @generated
     */
    private static IEditorInput getEditorInput(Diagram diagram) {
        Resource diagramResource = diagram.eResource();
        for (Iterator it = diagramResource.getContents().iterator(); it.hasNext();) {
            EObject nextEObject = (EObject) it.next();
            if (nextEObject == diagram) {
                return new FileEditorInput(WorkspaceSynchronizer.getFile(diagramResource));
            }
            if (nextEObject instanceof Diagram) {
                break;
            }
        }
        return new URIEditorInput(EcoreUtil.getURI(diagram));
    }

    /**
     * @generated
     */
    public IStructuredSelection findSelection(IEditorInput anInput) {
        IDiagramDocument document = WorkflowDiagramEditorPlugin.getInstance().getDocumentProvider()
                .getDiagramDocument(anInput);
        if (document == null) {
            return StructuredSelection.EMPTY;
        }
        Diagram diagram = document.getDiagram();
        IFile file = WorkspaceSynchronizer.getFile(diagram.eResource());
        if (file != null) {
            WorkflowNavigatorItem item = new WorkflowNavigatorItem(diagram, file, false);
            return new StructuredSelection(item);
        }
        return StructuredSelection.EMPTY;
    }

    /**
     * @generated
     */
    public void activateEditor(IWorkbenchPage aPage, IStructuredSelection aSelection) {
        if (aSelection == null || aSelection.isEmpty()) {
            return;
        }
        if (false == aSelection.getFirstElement() instanceof WorkflowAbstractNavigatorItem) {
            return;
        }
        WorkflowAbstractNavigatorItem abstractNavigatorItem = (WorkflowAbstractNavigatorItem) aSelection
                .getFirstElement();
        View navigatorView = null;
        if (abstractNavigatorItem instanceof WorkflowNavigatorItem) {
            navigatorView = ((WorkflowNavigatorItem) abstractNavigatorItem).getView();
        } else if (abstractNavigatorItem instanceof WorkflowNavigatorGroup) {
            WorkflowNavigatorGroup navigatorGroup = (WorkflowNavigatorGroup) abstractNavigatorItem;
            if (navigatorGroup.getParent() instanceof WorkflowNavigatorItem) {
                navigatorView = ((WorkflowNavigatorItem) navigatorGroup.getParent()).getView();
            }
        }
        if (navigatorView == null) {
            return;
        }
        IEditorInput editorInput = getEditorInput(navigatorView.getDiagram());
        IEditorPart editor = aPage.findEditor(editorInput);
        if (editor == null) {
            return;
        }
        aPage.bringToTop(editor);
        if (editor instanceof DiagramEditor) {
            DiagramEditor diagramEditor = (DiagramEditor) editor;
            ResourceSet diagramEditorResourceSet = diagramEditor.getEditingDomain().getResourceSet();
            EObject selectedView = diagramEditorResourceSet.getEObject(EcoreUtil.getURI(navigatorView), true);
            if (selectedView == null) {
                return;
            }
            GraphicalViewer graphicalViewer = (GraphicalViewer) diagramEditor.getAdapter(GraphicalViewer.class);
            EditPart selectedEditPart = (EditPart) graphicalViewer.getEditPartRegistry().get(selectedView);
            if (selectedEditPart != null) {
                graphicalViewer.select(selectedEditPart);
            }
        }
    }
}