| /******************************************************************************* |
| * Copyright (c) 2003, 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 |
| *******************************************************************************/ |
| package org.eclipse.wst.server.ui.internal.actions; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.wst.server.core.IServer; |
| import org.eclipse.wst.server.ui.internal.EclipseUtil; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.IActionDelegate; |
| /** |
| * |
| */ |
| public abstract class AbstractServerActionDelegate implements IActionDelegate { |
| protected List<IServer> servers; |
| |
| /** |
| * Return true if this server can currently be acted on. |
| * |
| * @return boolean |
| * @param server org.eclipse.wst.server.core.IServer |
| */ |
| public abstract boolean accept(IServer server); |
| |
| /** |
| * Perform action on this server. |
| * |
| * @param shell a shell |
| * @param server a server |
| */ |
| public abstract void perform(Shell shell, IServer server); |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| public void run(IAction action) { |
| Shell shell = EclipseUtil.getShell(); |
| Iterator iterator = servers.iterator(); |
| Object obj = iterator.next(); |
| if (obj instanceof IServer) { |
| IServer server = (IServer) obj; |
| if (accept(server)) |
| perform(shell, server); |
| selectionChanged(action, new StructuredSelection(servers)); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection) |
| */ |
| public void selectionChanged(IAction action, ISelection selection) { |
| servers = new ArrayList<IServer>(); |
| if (selection.isEmpty() || !(selection instanceof StructuredSelection)) { |
| action.setEnabled(false); |
| return; |
| } |
| |
| boolean enabled = false; |
| Iterator iterator = ((StructuredSelection) selection).iterator(); |
| while (iterator.hasNext()) { |
| Object obj = iterator.next(); |
| if (obj instanceof IServer) { |
| IServer server = (IServer) obj; |
| if (accept(server)) { |
| servers.add(server); |
| enabled = true; |
| } |
| } else { |
| action.setEnabled(false); |
| return; |
| } |
| } |
| action.setEnabled(enabled); |
| } |
| } |