content: /*******************************************************************************
   * Copyright (c) 2000, 2008 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.jsdt.internal.ui.workingsets;
  
  import org.eclipse.core.runtime.Assert;
  import org.eclipse.jface.action.Action;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.wst.jsdt.internal.ui.IJavaHelpContextIds;
  
  /**
   * Clears the selected working set in the action group's view.
   * 
   * 
   */
  public class ClearWorkingSetAction extends Action {
  	
  	private WorkingSetFilterActionGroup fActionGroup;
  
  	public ClearWorkingSetAction(WorkingSetFilterActionGroup actionGroup) {
  		super(WorkingSetMessages.ClearWorkingSetAction_text); 
  		Assert.isNotNull(actionGroup);
  		setToolTipText(WorkingSetMessages.ClearWorkingSetAction_toolTip); 
  		setEnabled(actionGroup.getWorkingSet() != null);
  		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.CLEAR_WORKING_SET_ACTION);
  		fActionGroup= actionGroup;
  	}
  
  	/*
  	 * Overrides method from Action
  	 */
  	public void run() {
  		fActionGroup.setWorkingSet(null, true);
  	}
  }
  