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;
  
  
  import org.eclipse.core.resources.IFile;
  import org.eclipse.core.resources.IResource;
  import org.eclipse.core.runtime.IAdapterFactory;
  import org.eclipse.ui.part.FileEditorInput;
  import org.eclipse.wst.jsdt.core.IJavaScriptElement;
  import org.eclipse.wst.jsdt.core.JavaScriptCore;
  
  public class ResourceAdapterFactory implements IAdapterFactory {
  
  	private static Class[] PROPERTIES= new Class[] {
  		IJavaScriptElement.class
  	};
  		
  	public Class[] getAdapterList() {
  		return PROPERTIES;
  	}
  	
  	public Object getAdapter(Object element, Class key) {
  		if (IJavaScriptElement.class.equals(key)) {
  			
  			// Performance optimization, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=133141
  			if (element instanceof IFile) {
  				IJavaScriptElement je= JavaScriptPlugin.getDefault().getWorkingCopyManager().getWorkingCopy(new FileEditorInput((IFile)element));
  				if (je != null)
  					return je;
  			}
  			
  			return JavaScriptCore.create((IResource)element);
  		}
  		return null;
  	}	
  }
  