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.jface.window.Window;
  import org.eclipse.swt.widgets.Shell;
  import org.eclipse.ui.IWorkbenchPartSite;
  import org.eclipse.ui.IWorkingSet;
  import org.eclipse.ui.IWorkingSetManager;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.ui.dialogs.IWorkingSetSelectionDialog;
  import org.eclipse.wst.jsdt.internal.ui.IJavaHelpContextIds;
  import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin;
  
  /**
   * Displays an IWorkingSetSelectionDialog and sets the selected 
   * working set in the action group's view.
   * 
   * 
   */
  public class SelectWorkingSetAction extends Action {
  	private IWorkbenchPartSite fSite;
  	private Shell fShell;
  	private WorkingSetFilterActionGroup fActionGroup;
  
  	public SelectWorkingSetAction(WorkingSetFilterActionGroup actionGroup, IWorkbenchPartSite site) {
  		this(actionGroup); 
  		fSite= site;
  	}
  	
  	public SelectWorkingSetAction(WorkingSetFilterActionGroup actionGroup, Shell shell) {
  		this(actionGroup); 
  		fShell= shell;
  	}
  	
  	private SelectWorkingSetAction(WorkingSetFilterActionGroup actionGroup) {
  		super(WorkingSetMessages.SelectWorkingSetAction_text); 
  		Assert.isNotNull(actionGroup);
  		setToolTipText(WorkingSetMessages.SelectWorkingSetAction_toolTip); 
  		fActionGroup= actionGroup;
  		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.SELECT_WORKING_SET_ACTION);
  	}
  	
  	/*
  	 * Overrides method from Action
  	 */
  	public void run() {
  		Shell shell= getShell();
  		IWorkingSetManager manager= PlatformUI.getWorkbench().getWorkingSetManager();
  		IWorkingSetSelectionDialog dialog= manager.createWorkingSetSelectionDialog(shell, false);
  		IWorkingSet workingSet= fActionGroup.getWorkingSet();
  		if (workingSet != null)
  			dialog.setSelection(new IWorkingSet[]{workingSet});
  
  		if (dialog.open() == Window.OK) {
  			IWorkingSet[] result= dialog.getSelection();
  			if (result != null && result.length > 0) {
  				fActionGroup.setWorkingSet(result[0], true);
  				manager.addRecentWorkingSet(result[0]);
  			}
  			else
  				fActionGroup.setWorkingSet(null, true);
  		}
  	}
  	
  	private Shell getShell() {
  		if (fSite != null) {
  			return fSite.getShell();
  		} else if (fShell != null) {
  			return fShell;
  		} else {
  			return JavaScriptPlugin.getActiveWorkbenchShell();
  		}
  	}
  }
  