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.actions;
  
  import org.eclipse.jface.action.Action;
  import org.eclipse.jface.action.IAction;
  import org.eclipse.jface.dialogs.IDialogConstants;
  import org.eclipse.jface.viewers.ISelection;
  import org.eclipse.swt.widgets.Shell;
  import org.eclipse.ui.IWorkbenchWindow;
  import org.eclipse.ui.IWorkbenchWindowActionDelegate;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.wst.jsdt.core.IType;
  import org.eclipse.wst.jsdt.core.search.IJavaScriptSearchConstants;
  import org.eclipse.wst.jsdt.core.search.SearchEngine;
  import org.eclipse.wst.jsdt.internal.ui.IJavaHelpContextIds;
  import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin;
  import org.eclipse.wst.jsdt.internal.ui.dialogs.OpenTypeSelectionDialog;
  import org.eclipse.wst.jsdt.internal.ui.util.OpenTypeHierarchyUtil;
  
  public class OpenTypeInHierarchyAction extends Action implements IWorkbenchWindowActionDelegate {
  	
  	private IWorkbenchWindow fWindow;
  	
  	public OpenTypeInHierarchyAction() {
  		super();
  		setText(ActionMessages.OpenTypeInHierarchyAction_label); 
  		setDescription(ActionMessages.OpenTypeInHierarchyAction_description); 
  		setToolTipText(ActionMessages.OpenTypeInHierarchyAction_tooltip); 
  		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.OPEN_TYPE_IN_HIERARCHY_ACTION);
  	}
  
  	public void run() {
  		Shell parent= JavaScriptPlugin.getActiveWorkbenchShell();
  		OpenTypeSelectionDialog dialog= new OpenTypeSelectionDialog(parent, false, 
  			PlatformUI.getWorkbench().getProgressService(), 
  			SearchEngine.createWorkspaceScope(), IJavaScriptSearchConstants.TYPE);
  		
  		dialog.setTitle(ActionMessages.OpenTypeInHierarchyAction_dialogTitle); 
  		dialog.setMessage(ActionMessages.OpenTypeInHierarchyAction_dialogMessage); 
  		int result= dialog.open();
  		if (result != IDialogConstants.OK_ID)
  			return;
  		
  		Object[] types= dialog.getResult();
  		if (types != null && types.length > 0) {
  			IType type= (IType)types[0];
  			OpenTypeHierarchyUtil.open(new IType[] { type }, fWindow);
  		}
  	}
  
  	//---- IWorkbenchWindowActionDelegate ------------------------------------------------
  
  	public void run(IAction action) {
  		run();
  	}
  	
  	public void dispose() {
  		fWindow= null;
  	}
  	
  	public void init(IWorkbenchWindow window) {
  		fWindow= window;
  	}
  	
  	public void selectionChanged(IAction action, ISelection selection) {
  		// do nothing. Action doesn't depend on selection.
  	}
  }
  