/*******************************************************************************
* Copyright (c) 2010 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.xsd.ui.internal.refactor.handlers;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.xsd.XSDSchema;
public abstract class RefactoringHandler extends AbstractHandler
{
public Object execute(ExecutionEvent event) throws ExecutionException {
IWorkbenchWindow workbenchWindow = HandlerUtil.getActiveWorkbenchWindow(event);
if (workbenchWindow == null) return null;
IWorkbenchPage activePage = workbenchWindow.getActivePage();
if (activePage == null) return null;
IEditorPart editor = activePage.getActiveEditor();
if (editor == null) return null;
XSDSchema schema = (XSDSchema)editor.getAdapter(XSDSchema.class);
ISelection selection = activePage.getSelection();
return doExecute(selection, schema);
}
protected abstract Object doExecute(ISelection selection, XSDSchema schema);
}