/*******************************************************************************
* <copyright>
*
* Copyright (c) 2013, 2013 Felix Velasco.
* 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:
* fvelasco - Initial version
*
* </copyright>
*
*******************************************************************************/
package org.eclipse.graphiti.examples.composite.dialog;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* Handler that is registered on the selection of 2 diagram files and opens the
* dialog that displays these diagrams.
*
* @since 0.10
*/
public class PreviewDiagramHandler extends AbstractHandler implements IHandler {
public Object execute(ExecutionEvent event) throws ExecutionException {
IStructuredSelection currentSelection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
Object[] elements = currentSelection.toArray();
IResource res1 = (IResource) Platform.getAdapterManager().getAdapter(elements[0], IResource.class);
IResource res2 = (IResource) Platform.getAdapterManager().getAdapter(elements[1], IResource.class);
if (res1 != null && res2 != null) {
DoubleDiagramDialog dialog = new DoubleDiagramDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow()
.getShell(), res1, res2);
dialog.open();
}
return null;
}
}