DataListHandler.java

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 * This file is protected by Copyright. 
 * Please refer to the COPYRIGHT file distributed with this source distribution.
 *
 * This file is part of REDHAWK IDE.
 *
 * 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
 *******************************************************************************/
package gov.redhawk.datalist.ui.handlers;

import gov.redhawk.datalist.ui.DataListPlugin;
import gov.redhawk.datalist.ui.views.DataListView;
import gov.redhawk.model.sca.ScaUsesPort;
import gov.redhawk.sca.util.PluginUtil;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.handlers.HandlerUtil;

/**
 * @since 2.0
 */
public class DataListHandler extends AbstractHandler {
	/**
	 * The constructor.
	 */
	public DataListHandler() {
	}

	@Override
	public Object execute(final ExecutionEvent event) throws ExecutionException {
		final IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event);
		ISelection selection = HandlerUtil.getActiveMenuSelection(event);
		if (selection == null) {
			selection = HandlerUtil.getCurrentSelection(event);
		}
		if (selection instanceof IStructuredSelection && !selection.isEmpty()) {
			final IStructuredSelection ss = (IStructuredSelection) selection;
			for (final Object obj : ss.toArray()) {
				final ScaUsesPort port = PluginUtil.adapt(ScaUsesPort.class, obj, true);
				if (port != null) {
					try {
						final IViewPart view = window.getActivePage().showView(DataListView.ID, String.valueOf(port.hashCode()), IWorkbenchPage.VIEW_ACTIVATE);
						if (view instanceof DataListView) {
							final DataListView dView = (DataListView) view;
							dView.setInput(port);
						}
					} catch (final PartInitException e) {
						e.fillInStackTrace();
						DataListPlugin.getDefault().getLog().log(new Status(
								Status.WARNING, 
								DataListPlugin.PLUGIN_ID, 
								"Problem initializing part.", e));
					}
				}
			}
		}
		return null;
	}
}