Java tutorial
/******************************************************************************* * Copyright (c) 2006-2007 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 * IBM Research *******************************************************************************/ package com.ibm.research.tours.actions; import java.util.ArrayList; import java.util.List; import org.eclipse.jface.action.IAction; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.ui.IObjectActionDelegate; import org.eclipse.ui.IWorkbenchPart; import com.ibm.research.tours.ITourElement; public class TourElementActionDelegate implements IObjectActionDelegate { private List<ITourElement> fSelectedElements; private IAction fAction; private IWorkbenchPart fTargetPart; public void setActivePart(IAction action, IWorkbenchPart targetPart) { fAction = action; fTargetPart = targetPart; } public void run(IAction action) { } public void selectionChanged(IAction action, ISelection selection) { IStructuredSelection structuredSelection = (IStructuredSelection) selection; fSelectedElements = new ArrayList<ITourElement>(); if (!structuredSelection.isEmpty()) { Object[] selectionArray = structuredSelection.toArray(); for (Object o : selectionArray) { if (o instanceof ITourElement) fSelectedElements.add((ITourElement) o); } } } public IAction getAction() { return fAction; } public ITourElement[] getSelectedElements() { return fSelectedElements.toArray(new ITourElement[0]); } public IWorkbenchPart getTargetPart() { return fTargetPart; } }