content: /*******************************************************************************
   * Copyright (c) 2000, 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.jsdt.internal.ui.workingsets;
  
  import org.eclipse.jface.viewers.IStructuredSelection;
  import org.eclipse.jface.wizard.WizardDialog;
  import org.eclipse.ui.IWorkbenchSite;
  import org.eclipse.ui.IWorkingSet;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.ui.dialogs.IWorkingSetEditWizard;
  import org.eclipse.wst.jsdt.ui.actions.SelectionDispatchAction;
  
  
  public class OpenPropertiesWorkingSetAction extends SelectionDispatchAction {
  
  	public OpenPropertiesWorkingSetAction(IWorkbenchSite site) {
  		super(site);
  		setText(WorkingSetMessages.OpenPropertiesWorkingSetAction_label); 
  		setEnabled(false);
  	}
  	
  	public void selectionChanged(IStructuredSelection selection) {
  		setEnabled(getWorkingSet(selection) != null);
  	}
  
  	private IWorkingSet getWorkingSet(IStructuredSelection selection) {
  		if (selection.size() != 1)
  			return null;
  		Object element= selection.getFirstElement();
  		if (!(element instanceof IWorkingSet))
  			return null;
  		IWorkingSet ws= (IWorkingSet)element;
  		if (!ws.isEditable())
  			return null;
  		return ws;
  	}
  	
  	public void run(IStructuredSelection selection) {
  		IWorkingSet ws= getWorkingSet(selection);
  		if (ws == null)
  			return;
  		IWorkingSetEditWizard wizard= PlatformUI.getWorkbench().
  			getWorkingSetManager().createWorkingSetEditWizard(ws);
  		WizardDialog dialog= new WizardDialog(getShell(), wizard);
  		dialog.open();
  	}
  }
  