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/*****************************************************************************
* Copyright (c) 2009 Atos Origin.
*
*
* 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:
* Atos Origin - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.activity.edit.policies;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Iterator;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.ui.URIEditorInput;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.transaction.util.TransactionUtil;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.core.preferences.PreferencesHint;
import org.eclipse.gmf.runtime.diagram.core.services.ViewService;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.OpenEditPolicy;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.HintedDiagramLinkStyle;
import org.eclipse.gmf.runtime.notation.NotationPackage;
import org.eclipse.gmf.runtime.notation.Style;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ActivityDiagramEditPart;
import org.eclipse.papyrus.uml.diagram.activity.part.Messages;
import org.eclipse.papyrus.uml.diagram.activity.part.UMLDiagramEditor;
import org.eclipse.papyrus.uml.diagram.activity.part.UMLDiagramEditorPlugin;
import org.eclipse.papyrus.uml.diagram.activity.part.UMLDiagramEditorUtil;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.WorkspaceModifyOperation;
/**
* @generated
*/
public class OpenDiagramEditPolicy extends OpenEditPolicy {
/**
* @generated
*/
@Override
protected Command getOpenCommand(Request request) {
EditPart targetEditPart = getTargetEditPart(request);
if (false == targetEditPart.getModel() instanceof View) {
return null;
}
View view = (View) targetEditPart.getModel();
Style link = view.getStyle(NotationPackage.eINSTANCE.getHintedDiagramLinkStyle());
if (false == link instanceof HintedDiagramLinkStyle) {
return null;
}
return new ICommandProxy(new OpenDiagramCommand((HintedDiagramLinkStyle) link));
}
/**
* @generated
*/
private static class OpenDiagramCommand extends AbstractTransactionalCommand {
/**
* @generated
*/
private final HintedDiagramLinkStyle diagramFacet;
/**
* @generated
*/
OpenDiagramCommand(HintedDiagramLinkStyle linkStyle) {
// editing domain is taken for original diagram,
// if we open diagram from another file, we should use another editing domain
super(TransactionUtil.getEditingDomain(linkStyle), Messages.CommandName_OpenDiagram, null);
diagramFacet = linkStyle;
}
// FIXME canExecute if !(readOnly && getDiagramToOpen == null), i.e. open works on ro diagrams only when there's associated diagram already
/**
* @generated
*/
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info)
throws ExecutionException {
try {
Diagram diagram = getDiagramToOpen();
if (diagram == null) {
diagram = intializeNewDiagram();
}
URI uri = EcoreUtil.getURI(diagram);
String editorName = uri.lastSegment() + '#' + diagram.eResource().getContents().indexOf(diagram);
IEditorInput editorInput = new URIEditorInput(uri, editorName);
IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
page.openEditor(editorInput, getEditorID());
return CommandResult.newOKCommandResult();
} catch (Exception ex) {
throw new ExecutionException("Can't open diagram", ex);
}
}
/**
* @generated
*/
protected Diagram getDiagramToOpen() {
return diagramFacet.getDiagramLink();
}
/**
* @generated
*/
protected Diagram intializeNewDiagram() throws ExecutionException {
Diagram d = ViewService.createDiagram(getDiagramDomainElement(), getDiagramKind(), getPreferencesHint());
if (d == null) {
throw new ExecutionException("Can't create diagram of '" + getDiagramKind() + "' kind");
}
diagramFacet.setDiagramLink(d);
assert diagramFacet.eResource() != null;
diagramFacet.eResource().getContents().add(d);
EObject container = diagramFacet.eContainer();
while (container instanceof View) {
((View) container).persist();
container = container.eContainer();
}
try {
new WorkspaceModifyOperation() {
protected void execute(IProgressMonitor monitor)
throws CoreException, InvocationTargetException, InterruptedException {
try {
for (Iterator<?> it = diagramFacet.eResource().getResourceSet().getResources()
.iterator(); it.hasNext();) {
Resource nextResource = (Resource) it.next();
if (nextResource.isLoaded() && !getEditingDomain().isReadOnly(nextResource)) {
nextResource.save(UMLDiagramEditorUtil.getSaveOptions());
}
}
} catch (IOException ex) {
throw new InvocationTargetException(ex, "Save operation failed");
}
}
}.run(null);
} catch (InvocationTargetException e) {
throw new ExecutionException("Can't create diagram of '" + getDiagramKind() + "' kind", e);
} catch (InterruptedException e) {
throw new ExecutionException("Can't create diagram of '" + getDiagramKind() + "' kind", e);
}
return d;
}
/**
* @generated
*/
protected EObject getDiagramDomainElement() {
// use same element as associated with EP
return ((View) diagramFacet.eContainer()).getElement();
}
/**
* @generated
*/
protected PreferencesHint getPreferencesHint() {
// XXX prefhint from target diagram's editor?
return UMLDiagramEditorPlugin.DIAGRAM_PREFERENCES_HINT;
}
/**
* @generated
*/
protected String getDiagramKind() {
return ActivityDiagramEditPart.MODEL_ID;
}
/**
* @generated
*/
protected String getEditorID() {
return UMLDiagramEditor.ID;
}
}
}
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