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/*******************************************************************************
* Copyright (c) 2011, 2012 Red Hat, Inc.
* All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
*
* @author Innar Made
******************************************************************************/
package org.eclipse.bpmn2.modeler.ui.wizards;
import java.io.File;
import org.eclipse.bpmn2.modeler.core.di.DIUtils;
import org.eclipse.bpmn2.modeler.core.utils.ErrorUtils;
import org.eclipse.bpmn2.modeler.core.utils.FileUtils;
import org.eclipse.bpmn2.modeler.core.utils.ModelUtil.Bpmn2DiagramType;
import org.eclipse.bpmn2.modeler.ui.Activator;
import org.eclipse.bpmn2.modeler.ui.Bpmn2DiagramEditorInput;
import org.eclipse.bpmn2.modeler.ui.editor.BPMN2Editor;
import org.eclipse.bpmn2.modeler.ui.editor.DefaultBPMN2Editor;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.util.URI;
import org.eclipse.graphiti.mm.pictograms.Diagram;
import org.eclipse.graphiti.ui.editor.DiagramEditorInput;
import org.eclipse.graphiti.ui.services.GraphitiUi;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
public class BPMN2DiagramCreator {
public static Bpmn2DiagramEditorInput createDiagram(URI uri, Bpmn2DiagramType diagramType, String targetNamespace) throws CoreException {
return createDiagram(null, uri, diagramType, targetNamespace, null);
}
public static Bpmn2DiagramEditorInput createDiagram(IEditorInput oldInput, URI modelUri, Bpmn2DiagramType diagramType, String targetNamespace, DefaultBPMN2Editor diagramEditor) {
// Should we create a new Graphiti diagram file or reuse the one
// from an already open editor window?
boolean createNew = true;
URI diagramUri = null;
BPMN2Editor otherEditor = BPMN2Editor.findOpenEditor(diagramEditor, oldInput);
String modelName = modelUri.trimFragment().trimFileExtension().lastSegment();
// We still need to create a Diagram object for this editor
final Diagram diagram = DIUtils.createDiagram(modelName); //$NON-NLS-1$
if (otherEditor!=null) {
// reuse the temp Diagram File from other editor
diagramUri = otherEditor.getDiagramUri();
createNew = false;
}
else {
// delete old temp file if necessary
if (oldInput instanceof Bpmn2DiagramEditorInput) {
URI oldUri = ((Bpmn2DiagramEditorInput)oldInput).getUri();
final File oldTempFile = new File(oldUri.toFileString());
if (oldTempFile!=null && oldTempFile.exists()) {
// If two or more editor windows are open on the same file
// when the workbench is first starting up, then deleting
// the old temp file before all copies of the editor are
// initialized can cause problems.
Display.getDefault().asyncExec(new Runnable() {
@Override
public void run() {
try {
oldTempFile.delete();
} catch (Exception e) {
}
}
});
}
}
String diagramName = FileUtils.createTempName(modelName);
diagramUri = URI.createFileURI(diagramName);
FileService.createEmfFileForDiagram(diagramUri, diagram, diagramEditor);
}
String providerId = GraphitiUi.getExtensionManager().getDiagramTypeProviderId(diagram.getDiagramTypeId());
// No need to create a new one if old input is already a Bpmn2DiagramEditorInput,
// just update it
Bpmn2DiagramEditorInput newInput;
if (oldInput instanceof Bpmn2DiagramEditorInput) {
newInput = (Bpmn2DiagramEditorInput)oldInput;
newInput.updateUri(diagramUri);
}
else if (createNew) {
newInput = new Bpmn2DiagramEditorInput(modelUri, diagramUri, providerId);
}
else {
newInput = (Bpmn2DiagramEditorInput) otherEditor.getEditorInput();
}
newInput.setInitialDiagramType(diagramType);
newInput.setTargetNamespace(targetNamespace);
if (diagramEditor==null) {
openEditor(newInput);
}
return newInput;
}
public static IEditorPart openEditor(final DiagramEditorInput editorInput) {
final Object result[] = { new Object() };
PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable() {
@Override
public void run() {
try {
IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
IEditorPart part = null;
part = page.findEditor(editorInput);
if (part!=null) {
page.activate(part);
}
else {
part = page.openEditor(editorInput, BPMN2Editor.EDITOR_ID);
}
result[0] = part;
} catch (PartInitException e) {
String error = Messages.BPMN2DiagramCreator_Create_Error;
IStatus status = new Status(IStatus.ERROR, Activator.PLUGIN_ID, error, e);
ErrorUtils.showErrorWithLogging(status);
}
}
});
return (IEditorPart)result[0];
}
}
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