ui/org.eclipse.sensinact.studio.ui.common/src/org/eclipse/sensinact/studio/ui/common/dialog/SnaHandler.java

/**
 * Copyright (c) 2019 CEA.
 * 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:
 *     CEA - initial API and implementation and/or initial documentation
 */
package org.eclipse.sensinact.studio.ui.common.dialog;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.HandlerUtil;

/**
 * @author Etienne Gandrille
 */
public abstract class SnaHandler extends AbstractHandler {

	protected Shell getShell(ExecutionEvent event) {
		return HandlerUtil.getActiveWorkbenchWindow(event).getShell();
	}
	
	protected Object getSelectedElement(ExecutionEvent event) {
		ISelection selection = HandlerUtil.getCurrentSelection(event);
		if (selection != null && selection instanceof IStructuredSelection) {
			IStructuredSelection structuredSelection = (IStructuredSelection) selection;
			return structuredSelection.getFirstElement();
		}
		return null;
	}
	
	public static Shell getShell(DoubleClickEvent event) {
		return event.getViewer().getControl().getShell();
	}
}