basicfilechooserui.java

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    /**
     * Sets the directory to the user's home directory, and repaints the
     * file chooser component.
     *
     * @param e  the action event (ignored).
     */
    public void actionPerformed(ActionEvent e)
    {
      filechooser.setCurrentDirectory(filechooser.getFileSystemView()
                                                 .getHomeDirectory());
      filechooser.revalidate();
      filechooser.repaint();
    }
  }

  /**
   * An action that handles the creation of a new folder/directory.
   * 
   * @see BasicFileChooserUI#getNewFolderAction()
   */
  protected class NewFolderAction extends AbstractAction
  {
    /**
     * Creates a new <code>NewFolderAction</code> object.
     */
    protected NewFolderAction()
    {
      super("New Folder");
    }

    /**
     * Handles the event by creating a new folder.
     *
     * @param e  the action event (ignored).
     */
    public void actionPerformed(ActionEvent e)
    {
      try
        {
	  filechooser.getFileSystemView().createNewFolder(filechooser
	                                                  .getCurrentDirectory());
        }
      catch (IOException ioe)
        {
	  return;
        }
      filechooser.rescanCurrentDirectory();
      filechooser.repaint();
    }
  }

  /**
   * A listener for selection events in the file list.
   * 
   * @see BasicFileChooserUI#createListSelectionListener(JFileChooser)
   */
  protected class SelectionListener implements ListSelectionListener
  {
    /**
     * Creates a new <code>SelectionListener</code> object.
     */
    protected SelectionListener()
    {
      // Nothing to do here.
    }

    /**
     * DOCUMENT ME!
     *
     * @param e DOCUMENT ME!
     */
    public void valueChanged(ListSelectionEvent e)
    {
      JList list = (JList) e.getSource();
      Object f = list.getSelectedValue();
      if (f == null)
	return;
      File file = filechooser.getFileSystemView().createFileObject(f.toString());
      if (! filechooser.isTraversable(file))
	filechooser.setSelectedFile(file);
      else
	filechooser.setSelectedFile(null);
    }
  }

  /**
   * DOCUMENT ME!
   * 
   * @see BasicFileChooserUI#getUpdateAction()
   */
  protected class UpdateAction extends AbstractAction
  {
    /**
     * Creates a new UpdateAction object.
     */
    protected UpdateAction()
    {
      super(null);
    }

    /**
     * NOT YET IMPLEMENTED.
     *
     * @param e  the action event.
     */
    public void actionPerformed(ActionEvent e)
    {
      // FIXME: implement this
    }
  }

  /** The localised mnemonic for the cancel button. */
  protected int cancelButtonMnemonic;

  /** The localised text for the cancel button. */
  protected String cancelButtonText;

  /** The localised tool tip text for the cancel button. */
  protected String cancelButtonToolTipText;

  /** An icon representing a computer. */
  protected Icon computerIcon;

  /** An icon for the "details view" button. */
  protected Icon detailsViewIcon;

  /** An icon representing a directory. */
  protected Icon directoryIcon;

  /** The localised Mnemonic for the open button. */
  protected int directoryOpenButtonMnemonic;

  /** The localised text for the open button. */
  protected String directoryOpenButtonText;

  /** The localised tool tip text for the open button. */
  protected String directoryOpenButtonToolTipText;

  /** An icon representing a file. */
  protected Icon fileIcon;

  /** An icon representing a floppy drive. */
  protected Icon floppyDriveIcon;

  /** An icon representing a hard drive. */
  protected Icon hardDriveIcon;

  /** The localised mnemonic for the "help" button. */
  protected int helpButtonMnemonic;

  /** The localised text for the "help" button. */
  protected String helpButtonText;

  /** The localised tool tip text for the help button. */
  protected String helpButtonToolTipText;

  /** An icon representing the user's home folder. */
  protected Icon homeFolderIcon;

  /** An icon for the "list view" button. */
  protected Icon listViewIcon;

  /** An icon for the "new folder" button. */
  protected Icon newFolderIcon = directoryIcon;

  /** The localised mnemonic for the "open" button. */
  protected int openButtonMnemonic;

  /** The localised text for the "open" button. */
  protected String openButtonText;

  /** The localised tool tip text for the "open" button. */
  protected String openButtonToolTipText;

  /** The localised mnemonic for the "save" button. */
  protected int saveButtonMnemonic;

  /** The localised text for the "save" button. */
  protected String saveButtonText;

  /** The localised tool tip text for the save button. */
  protected String saveButtonToolTipText;

  /** The localised mnemonic for the "update" button. */
  protected int updateButtonMnemonic;

  /** The localised text for the "update" button. */
  protected String updateButtonText;

  /** The localised tool tip text for the "update" button. */
  protected String updateButtonToolTipText;

  /** An icon for the "up folder" button. */
  protected Icon upFolderIcon;

  // -- begin private, but package local since used in inner classes --

  /** The file chooser component represented by this UI delegate. */
  JFileChooser filechooser;

  /** The model for the directory list. */
  BasicDirectoryModel model;

  /** The file filter for all files. */
  FileFilter acceptAll = new AcceptAllFileFilter();

  /** The default file view. */
  FileView fv = new BasicFileView();

  /** The accept (open/save) button. */
  JButton accept;

  /** An optional accessory panel. */
  JPanel accessoryPanel = new JPanel();

  /** A property change listener. */
  PropertyChangeListener propertyChangeListener;

  /** The text describing the filter for "all files". */
  String acceptAllFileFilterText;

  /** The text describing a directory type. */
  String dirDescText;

  /** The text describing a file type. */
  String fileDescText;

  /** Is a directory selected? */
  boolean dirSelected = false;

  /** The current directory. */
  File currDir = null;

  // FIXME: describe what is contained in the bottom panel
  /** The bottom panel. */
  JPanel bottomPanel;
  
  /** The close panel. */
  JPanel closePanel;

  /** Text box that displays file name */
  JTextField entry;
    
  /** Current parent path */
  String parentPath;
  
  /**
   * The action for the 'approve' button.
   * @see #getApproveSelectionAction()
   */
  private ApproveSelectionAction approveSelectionAction;
  
  /**
   * The action for the 'cancel' button.
   * @see #getCancelSelectionAction()
   */
  private CancelSelectionAction cancelSelectionAction;
  
  /**
   * The action for the 'go home' control button.
   * @see #getGoHomeAction()
   */
  private GoHomeAction goHomeAction;
  
  /**
   * The action for the 'up folder' control button.
   * @see #getChangeToParentDirectoryAction()
   */
  private ChangeToParentDirectoryAction changeToParentDirectoryAction;
  
  /**
   * The action for the 'new folder' control button.
   * @see #getNewFolderAction()
   */
  private NewFolderAction newFolderAction;
  
  /**
   * The action for ???.  // FIXME: what is this?
   * @see #getUpdateAction()
   */
  private UpdateAction updateAction;
  
  // -- end private --

  /**
   * Closes the dialog.
   */
  void closeDialog()
  {
    Window owner = SwingUtilities.windowForComponent(filechooser);
    if (owner instanceof JDialog)
      ((JDialog) owner).dispose();
  }

  /**
   * Creates a new <code>BasicFileChooserUI</code> object.
   *
   * @param b  the file chooser component.
   */
  public BasicFileChooserUI(JFileChooser b)
  {
  }

  /**
   * Returns a UI delegate for the given component.
   *
   * @param c  the component (should be a {@link JFileChooser}).
   *
   * @return A new UI delegate.
   */
  public static ComponentUI createUI(JComponent c)
  {
    return new BasicFileChooserUI((JFileChooser) c);
  }

  /**
   * Installs the UI for the specified component.
   * 
   * @param c  the component (should be a {@link JFileChooser}).
   */
  public void installUI(JComponent c)
  {
    if (c instanceof JFileChooser)
      {
        JFileChooser fc = (JFileChooser) c;
        this.filechooser = fc;
        fc.resetChoosableFileFilters();
        createModel();
        clearIconCache();
        installDefaults(fc);
        installComponents(fc);
        installListeners(fc);
        
        Object path = filechooser.getCurrentDirectory();
        if (path != null)
          parentPath = path.toString().substring(path.toString().lastIndexOf("/"));
      }
  }

  /**
   * Uninstalls this UI from the given component.
   * 
   * @param c  the component (should be a {@link JFileChooser}).
   */
  public void uninstallUI(JComponent c)
  {
    model = null;
    uninstallListeners(filechooser);
    uninstallComponents(filechooser);
    uninstallDefaults(filechooser);
    filechooser = null;
  }

  // FIXME: Indent the entries in the combobox
  // Made this method package private to access it from within inner classes
  // with better performance
  void boxEntries()
  {
    ArrayList parentFiles = new ArrayList();
    File parent = filechooser.getCurrentDirectory();
    if (parent == null)
      parent = filechooser.getFileSystemView().getDefaultDirectory();
    while (parent != null)
      {
        String name = parent.getName();
        if (name.equals(""))
          name = parent.getAbsolutePath();

        parentFiles.add(parentFiles.size(), name);
        parent = parent.getParentFile();
      }

    if (parentFiles.size() == 0)
      return;

  }  

  /**
   * Creates and install the subcomponents for the file chooser.
   *
   * @param fc  the file chooser.
   */
  public void installComponents(JFileChooser fc)
  {
  }

  /**
   * Uninstalls the components from the file chooser.
   *
   * @param fc  the file chooser.
   */
  public void uninstallComponents(JFileChooser fc)
  {
  }

  /**
   * Installs the listeners required by this UI delegate.
   *
   * @param fc  the file chooser.
   */
  protected void installListeners(JFileChooser fc)
  {
    propertyChangeListener = createPropertyChangeListener(filechooser);
    filechooser.addPropertyChangeListener(propertyChangeListener);
  }

  /**
   * Uninstalls the listeners previously installed by this UI delegate.
   *
   * @param fc  the file chooser.
   */
  protected void uninstallListeners(JFileChooser fc)
  {
    filechooser.removePropertyChangeListener(propertyChangeListener);
    propertyChangeListener = null;
  }

  /**
   * Installs the defaults for this UI delegate.
   *
   * @param fc  the file chooser.
   */
  protected void installDefaults(JFileChooser fc)
  {
    installIcons(fc);
    installStrings(fc);
  }

  /**
   * Uninstalls the defaults previously added by this UI delegate.
   *
   * @param fc  the file chooser.
   */
  protected void uninstallDefaults(JFileChooser fc)
  {
    uninstallStrings(fc);
    uninstallIcons(fc);
  }

  /**
   * Installs the icons for this UI delegate.
   *
   * @param fc  the file chooser (ignored).
   */
  protected void installIcons(JFileChooser fc)
  {
    UIDefaults defaults = UIManager.getLookAndFeelDefaults();
    computerIcon = MetalIconFactory.getTreeComputerIcon();
    detailsViewIcon = defaults.getIcon("FileChooser.detailsViewIcon");
    directoryIcon = new MetalIconFactory.TreeFolderIcon();
    fileIcon = new MetalIconFactory.TreeLeafIcon();
    floppyDriveIcon = MetalIconFactory.getTreeFloppyDriveIcon();
    hardDriveIcon = MetalIconFactory.getTreeHardDriveIcon();
    homeFolderIcon = defaults.getIcon("FileChooser.homeFolderIcon");
    listViewIcon = defaults.getIcon("FileChooser.listViewIcon");
    newFolderIcon = defaults.getIcon("FileChooser.newFolderIcon");
    upFolderIcon = defaults.getIcon("FileChooser.upFolderIcon");
  }

  /**
   * Uninstalls the icons previously added by this UI delegate.
   *
   * @param fc  the file chooser.
   */
  protected void uninstallIcons(JFileChooser fc)
  {
    computerIcon = null;
    detailsViewIcon = null;
    directoryIcon = null;
    fileIcon = null;
    floppyDriveIcon = null;