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    1   /*
    2    * Copyright (c) 2000, 2002, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package sun.awt.shell;
   27   
   28   import java.io.File;
   29   import java.security.AccessController;
   30   import javax.swing.Icon;
   31   import sun.security.action.GetPropertyAction;
   32   
   33   /**
   34    * @author Michael Martak
   35    * @since 1.4
   36    */
   37   
   38   class DefaultShellFolder extends ShellFolder {
   39   
   40       /**
   41        * Create a file system shell folder from a file
   42        */
   43       DefaultShellFolder(ShellFolder parent, File f) {
   44           super(parent, f.getAbsolutePath());
   45       }
   46   
   47       /**
   48        * This method is implemented to make sure that no instances
   49        * of <code>ShellFolder</code> are ever serialized. An instance of
   50        * this default implementation can always be represented with a
   51        * <code>java.io.File</code> object instead.
   52        *
   53        * @returns a <code>java.io.File</code> replacement object.
   54        */
   55       protected Object writeReplace() throws java.io.ObjectStreamException {
   56           return new File(getPath());
   57       }
   58   
   59       /**
   60        * @return An array of shell folders that are children of this shell folder
   61        * object, null if this shell folder is empty.
   62        */
   63       public File[] listFiles() {
   64           File[] files = super.listFiles();
   65           if (files != null) {
   66               for (int i = 0; i < files.length; i++) {
   67                   files[i] = new DefaultShellFolder(this, files[i]);
   68               }
   69           }
   70           return files;
   71       }
   72   
   73       /**
   74        * @return Whether this shell folder is a link
   75        */
   76       public boolean isLink() {
   77           return false; // Not supported by default
   78       }
   79   
   80       /**
   81        * @return Whether this shell folder is marked as hidden
   82        */
   83       public boolean isHidden() {
   84           String fileName = getName();
   85           if (fileName.length() > 0) {
   86               return (fileName.charAt(0) == '.');
   87           }
   88           return false;
   89       }
   90   
   91       /**
   92        * @return The shell folder linked to by this shell folder, or null
   93        * if this shell folder is not a link
   94        */
   95       public ShellFolder getLinkLocation() {
   96           return null; // Not supported by default
   97       }
   98   
   99       /**
  100        * @return The name used to display this shell folder
  101        */
  102       public String getDisplayName() {
  103           return getName();
  104       }
  105   
  106       /**
  107        * @return The type of shell folder as a string
  108        */
  109       public String getFolderType() {
  110           if (isDirectory()) {
  111               return "File Folder"; // TODO : LOCALIZE THIS STRING!!!
  112           } else {
  113               return "File"; // TODO : LOCALIZE THIS STRING!!!
  114           }
  115       }
  116   
  117       /**
  118        * @return The executable type as a string
  119        */
  120       public String getExecutableType() {
  121           return null; // Not supported by default
  122       }
  123   }

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