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From-SVN: r102074

1 files changed, 361 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/filechooser/FileSystemView.java b/libjava/classpath/javax/swing/filechooser/FileSystemView.java
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+/* FileSystemView.java --
+   Copyright (C) 2002, 2004, 2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.swing.filechooser;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import javax.swing.Icon;
+
+
+/**
+ * DOCUMENT ME!
+ */
+public abstract class FileSystemView
+{
+  /**
+   * DOCUMENT ME!
+   *
+   * @param dir DOCUMENT ME!
+   * @param filename DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File createFileObject(File dir, String filename)
+  {
+    return new File(dir, filename);
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param path DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File createFileObject(String path)
+  {
+    return new File(path);
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  protected File createFileSystemRoot(File f)
+  {
+    File[] roots = File.listRoots();
+    if (roots == null)
+      return null;
+    return roots[0];
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param containingDir DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   *
+   * @throws IOException DOCUMENT ME!
+   */
+  public abstract File createNewFolder(File containingDir)
+                                throws IOException;
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param parent DOCUMENT ME!
+   * @param fileName DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File getChild(File parent, String fileName)
+  {
+    // FIXME: Handle the case when parent and child are special folders.
+    return new File(parent, fileName);
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File getDefaultDirectory()
+  {
+    return getHomeDirectory();
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param dir DOCUMENT ME!
+   * @param useFileHiding DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File[] getFiles(File dir, boolean useFileHiding)
+  {
+    if (dir == null || dir.listFiles() == null)
+      return null;
+    File[] files = dir.listFiles();
+    if (! useFileHiding)
+      return files;
+    ArrayList trim = new ArrayList();
+    for (int i = 0; i < files.length; i++)
+      if (! files[i].isHidden())
+	trim.add(files[i]);
+    File[] value = (File[]) trim.toArray(new File[0]);
+    return value;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public static FileSystemView getFileSystemView()
+  {
+    if (File.separator.equals("/"))
+      return new UnixFileSystemView();
+
+    // else if (File.Separator.equals("\"))
+    //	return new Win32FileSystemView();
+    // else 
+    //	return new GenericFileSystemView();
+    return null;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File getHomeDirectory()
+  {
+    return createFileObject(System.getProperty("user.home"));
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File getParentDirectory(File f)
+  {
+    if (f == null)
+      return null;
+    return f.getParentFile();
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public File[] getRoots()
+  {
+    // subclass
+    return null;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public String getSystemDisplayName(File f)
+  {
+    return null;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public Icon getSystemIcon(File f)
+  {
+    return null;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public String getSystemTypeDescription(File f)
+  {
+    return null;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param dir DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isComputerNode(File dir)
+  {
+    return false;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param dir DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isDrive(File dir)
+  {
+    return false;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isFileSystem(File f)
+  {
+    return (f.isFile() || f.isDirectory());
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param dir DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isFileSystemRoot(File dir)
+  {
+    File[] roots = File.listRoots();
+    if (roots == null || dir == null)
+      return false;
+    String filename = dir.getAbsolutePath();
+    for (int i = 0; i < roots.length; i++)
+      if (roots[i].getAbsolutePath().equals(filename))
+	return true;
+    return false;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param dir DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isFloppyDrive(File dir)
+  {
+    return false;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isHiddenFile(File f)
+  {
+    return f.isHidden();
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param folder DOCUMENT ME!
+   * @param file DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isParent(File folder, File file)
+  {
+    File parent = file.getParentFile();
+    if (parent == null)
+      return false;
+    return folder.equals(parent);
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public boolean isRoot(File f)
+  {
+    // These are not file system roots.
+    return false;
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param f DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public Boolean isTraversable(File f)
+  {
+    // Tested. A directory where the user has no permission to rwx is still
+    // traversable. (No files are listed when you traverse the directory)
+    // My best guess is that as long as it's a directory, the file is
+    // traversable.
+    return new Boolean(f.isDirectory());
+  }
+}