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:
   *   Jesper Kamstrup Linnet (eclipse@kamstrup-linnet.dk) - initial API and implementation 
   *          (report 36180: Callers/Callees view)
   *******************************************************************************/
  package org.eclipse.wst.jsdt.internal.ui.callhierarchy;
  
  import org.eclipse.jface.action.Action;
  import org.eclipse.ui.IWorkingSet;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.wst.jsdt.core.JavaScriptModelException;
  import org.eclipse.wst.jsdt.internal.ui.IJavaHelpContextIds;
  import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin;
  import org.eclipse.wst.jsdt.internal.ui.search.JavaSearchScopeFactory;
  import org.eclipse.wst.jsdt.internal.ui.util.ExceptionHandler;
  
  class SelectWorkingSetAction extends Action {
  	private final SearchScopeActionGroup fGroup;
  	
  	public SelectWorkingSetAction(SearchScopeActionGroup group) {
  		super(CallHierarchyMessages.SearchScopeActionGroup_workingset_select_text); 
  		this.fGroup = group;
  		setToolTipText(CallHierarchyMessages.SearchScopeActionGroup_workingset_select_tooltip); 
  		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.CALL_HIERARCHY_SEARCH_SCOPE_ACTION);
  	}
  	/*
  	 * (non-Javadoc)
  	 * 
  	 * @see org.eclipse.jface.action.Action#run()
  	 */
  	public void run() {
  		try {
  			IWorkingSet[] workingSets;
  			workingSets = JavaSearchScopeFactory.getInstance().queryWorkingSets();
  			if (workingSets != null) {
  				this.fGroup.setActiveWorkingSets(workingSets);
  				SearchUtil.updateLRUWorkingSets(workingSets);
  			} else {
  				this.fGroup.setActiveWorkingSets(null);
  			}
  		} catch (JavaScriptModelException e) {
  			ExceptionHandler.handle(e, JavaScriptPlugin.getActiveWorkbenchShell(), 
  					CallHierarchyMessages.SelectWorkingSetAction_error_title, 
  					CallHierarchyMessages.SelectWorkingSetAction_error_message); 
  		} catch (InterruptedException e) {
  			// cancel pressed
  		}
  	}
  }
  