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.javaeditor;
  
  
  import org.eclipse.core.resources.IStorage;
  import org.eclipse.core.runtime.IPath;
  import org.eclipse.jface.resource.ImageDescriptor;
  import org.eclipse.ui.IEditorRegistry;
  import org.eclipse.ui.IPersistableElement;
  import org.eclipse.ui.IStorageEditorInput;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.wst.jsdt.core.IJarEntryResource;
  import org.eclipse.wst.jsdt.core.IPackageFragmentRoot;
  
  
  /**
   * An EditorInput for a JarEntryFile.
   */
  public class JarEntryEditorInput implements IStorageEditorInput {
  
  	private IStorage fJarEntryFile;
  
  	public JarEntryEditorInput(IStorage jarEntryFile) {
  		fJarEntryFile= jarEntryFile;
  	}
  
  	/*
  	 */
  	public boolean equals(Object obj) {
  		if (this == obj)
  			return true;
  		if (!(obj instanceof JarEntryEditorInput))
  			return false;
  		JarEntryEditorInput other= (JarEntryEditorInput) obj;
  		return fJarEntryFile.equals(other.fJarEntryFile);
  	}
  
  	/*
  	 * @see IEditorInput#getPersistable()
  	 */
  	public IPersistableElement getPersistable() {
  		return null;
  	}
  
  	/*
  	 * @see IEditorInput#getName()
  	 */
  	public String getName() {
  		return fJarEntryFile.getName();
  	}
  
  	/*
  	 * @see IEditorInput#getContentType()
  	 */
  	public String getContentType() {
  		return fJarEntryFile.getFullPath().getFileExtension();
  	}
  
  	/*
  	 * @see IEditorInput#getToolTipText()
  	 */
  	public String getToolTipText() {
  		if (fJarEntryFile instanceof IJarEntryResource) {
  			IJarEntryResource jarEntry= (IJarEntryResource)fJarEntryFile;
  			IPackageFragmentRoot root= jarEntry.getPackageFragmentRoot();
  			IPath fullPath= root.getPath().append(fJarEntryFile.getFullPath());
  			if (root.isExternal())
  				return fullPath.toOSString();
  			return fullPath.toString();
  			
  		}
  		
  		IPath fullPath= fJarEntryFile.getFullPath();
  		if (fullPath == null)
  			return null;
  		return fullPath.toString();
  	}
  
  	/*
  	 * @see IEditorInput#getImageDescriptor()
  	 */
  	public ImageDescriptor getImageDescriptor() {
  		IEditorRegistry registry= PlatformUI.getWorkbench().getEditorRegistry();
  		return registry.getImageDescriptor(getContentType());
  	}
  
  	/*
  	 * @see IEditorInput#exists()
  	 */
  	public boolean exists() {
  		// JAR entries can't be deleted
  		return true;
  	}
  
  	/*
  	 * @see IAdaptable#getAdapter(Class)
  	 */
  	public Object getAdapter(Class adapter) {
  		return null;
  	}
  
  	/*
  	 * see IStorageEditorInput#getStorage()
  	 */
  	 public IStorage getStorage() {
  	 	return fJarEntryFile;
  	 }
  }
  
  
  