| /* |
| * Copyright (c) 2015 Eike Stepper (Berlin, Germany) 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.emf.cdo.ui.internal.compare; |
| |
| import org.eclipse.net4j.util.AdapterUtil; |
| import org.eclipse.net4j.util.ui.actions.LongRunningActionDelegate; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public abstract class CompareActionDelegate<TARGET> extends LongRunningActionDelegate |
| { |
| private final Class<TARGET> targetClass; |
| |
| private IWorkbenchPart targetPart; |
| |
| private ISelection selection; |
| |
| public CompareActionDelegate(Class<TARGET> targetClass) |
| { |
| this.targetClass = targetClass; |
| } |
| |
| public IWorkbenchPart getTargetPart() |
| { |
| return targetPart; |
| } |
| |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) |
| { |
| this.targetPart = targetPart; |
| } |
| |
| @Override |
| public void selectionChanged(IAction action, ISelection selection) |
| { |
| this.selection = selection; |
| } |
| |
| @Override |
| protected void doRun(IProgressMonitor progressMonitor) throws Exception |
| { |
| if (selection instanceof IStructuredSelection) |
| { |
| IStructuredSelection ssel = (IStructuredSelection)selection; |
| List<TARGET> targets = new ArrayList<TARGET>(); |
| |
| @SuppressWarnings("unchecked") |
| Iterator<Object> iterator = ssel.iterator(); |
| |
| while (iterator.hasNext()) |
| { |
| Object element = iterator.next(); |
| TARGET target = AdapterUtil.adapt(element, targetClass); |
| if (target != null) |
| { |
| targets.add(target); |
| } |
| } |
| |
| run(targets, progressMonitor); |
| } |
| } |
| |
| protected abstract void run(List<TARGET> targets, IProgressMonitor progressMonitor); |
| } |