| /******************************************************************************* |
| * Copyright (c) 2004, 2005 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.ws.internal.explorer; |
| |
| import org.eclipse.swt.SWTException; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.PlatformUI; |
| |
| public class LaunchWizardTask { |
| // singleton |
| private static LaunchWizardTask task_; |
| |
| // the shell for the wizard to be launched |
| private Shell shell_; |
| |
| // the LaunchWizardRunnable that is currently running |
| private LaunchWizardRunnable runnable_; |
| |
| private LaunchWizardTask(Shell shell) { |
| shell_ = shell; |
| runnable_ = null; |
| } |
| |
| public static LaunchWizardTask getInstance() { |
| if (task_ == null) |
| task_ = new LaunchWizardTask(PlatformUI.getWorkbench() |
| .getActiveWorkbenchWindow().getShell()); |
| return task_; |
| } |
| |
| public void asyncExec(Runnable runnable) throws SWTException { |
| shell_.getDisplay().asyncExec(runnable); |
| } |
| |
| public boolean checkAndAsyncExec(LaunchWizardRunnable runnable) { |
| try { |
| if (!getIsExecuting()) { |
| asyncExec(runnable); |
| runnable_ = runnable; |
| return true; |
| } else |
| return false; |
| } catch (Exception e) { |
| return false; |
| } |
| } |
| |
| public boolean getIsExecuting() { |
| if (runnable_ != null) { |
| boolean isFinish = runnable_.isFinish(); |
| if (isFinish) |
| runnable_ = null; |
| return !isFinish; |
| } else |
| return false; |
| } |
| } |