1 /*
   2  * Copyright (c) 2000, 2014, 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 @SuppressWarnings("serial") // JDK-implementation class
  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 }