JarEntryEditorInput


1   /*******************************************************************************
2    * Copyright (c) 2000, 2007 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  
12  package org.eclipse.jdt.internal.ui.javaeditor;
13  
14  
15  import org.eclipse.core.runtime.IPath;
16  
17  import org.eclipse.core.resources.IStorage;
18  
19  import org.eclipse.jface.resource.ImageDescriptor;
20  
21  import org.eclipse.ui.IEditorRegistry;
22  import org.eclipse.ui.IPersistableElement;
23  import org.eclipse.ui.IStorageEditorInput;
24  import org.eclipse.ui.PlatformUI;
25  
26  import org.eclipse.jdt.core.IJarEntryResource;
27  import org.eclipse.jdt.core.IPackageFragmentRoot;
28  
29  
30  /**
31   * An EditorInput for a JarEntryFile.
32   */
33  public class JarEntryEditorInput implements IStorageEditorInput {
34  
35      private IStorage fJarEntryFile;
36  
37      public JarEntryEditorInput(IStorage jarEntryFile) {
38          fJarEntryFile= jarEntryFile;
39      }
40  
41      /*
42       */
43      public boolean equals(Object   obj) {
44          if (this == obj)
45              return true;
46          if (!(obj instanceof JarEntryEditorInput))
47              return false;
48          JarEntryEditorInput other= (JarEntryEditorInput) obj;
49          return fJarEntryFile.equals(other.fJarEntryFile);
50      }
51  
52      /*
53       * @see IEditorInput#getPersistable()
54       */
55      public IPersistableElement getPersistable() {
56          return null;
57      }
58  
59      /*
60       * @see IEditorInput#getName()
61       */
62      public String   getName() {
63          return fJarEntryFile.getName();
64      }
65  
66      /*
67       * @see IEditorInput#getContentType()
68       */
69      public String   getContentType() {
70          return fJarEntryFile.getFullPath().getFileExtension();
71      }
72  
73      /*
74       * @see IEditorInput#getToolTipText()
75       */
76      public String   getToolTipText() {
77          if (fJarEntryFile instanceof IJarEntryResource) {
78              IJarEntryResource jarEntry= (IJarEntryResource)fJarEntryFile;
79              IPackageFragmentRoot root= jarEntry.getPackageFragmentRoot();
80              IPath fullPath= root.getPath().append(fJarEntryFile.getFullPath());
81              if (root.isExternal())
82                  return fullPath.toOSString();
83              return fullPath.toString();
84              
85          }
86          
87          IPath fullPath= fJarEntryFile.getFullPath();
88          if (fullPath == null)
89              return null;
90          return fullPath.toString();
91      }
92  
93      /*
94       * @see IEditorInput#getImageDescriptor()
95       */
96      public ImageDescriptor getImageDescriptor() {
97          IEditorRegistry registry= PlatformUI.getWorkbench().getEditorRegistry();
98          return registry.getImageDescriptor(getContentType());
99      }
100 
101     /*
102      * @see IEditorInput#exists()
103      */
104     public boolean exists() {
105         // JAR entries can't be deleted
106         return true;
107     }
108 
109     /*
110      * @see IAdaptable#getAdapter(Class)
111      */
112     public Object   getAdapter(Class   adapter) {
113         return null;
114     }
115 
116     /*
117      * see IStorageEditorInput#getStorage()
118      */
119      public IStorage getStorage() {
120         return fJarEntryFile;
121      }
122 }
123 
124 
125
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