1 /*
   2  * Copyright (c) 1997, 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 javax.swing.plaf;
  27 
  28 import javax.swing.*;
  29 import javax.swing.filechooser.FileFilter;
  30 import javax.swing.filechooser.FileView;
  31 import java.io.File;
  32 
  33 /**
  34  * Pluggable look and feel interface for <code>JFileChooser</code>.
  35  *
  36  * @author Jeff Dinkins
  37  */
  38 
  39 public abstract class FileChooserUI extends ComponentUI
  40 {
  41     /**
  42      * Returns an accept-all file filter.
  43      * @param fc the file chooser
  44      * @return an accept-all file filter
  45      */
  46     public abstract FileFilter getAcceptAllFileFilter(JFileChooser fc);
  47     /**
  48      * Returns a file view.
  49      * @param fc the file chooser
  50      * @return a file view
  51      */
  52     public abstract FileView getFileView(JFileChooser fc);
  53 
  54     /**
  55      * Returns approve button text.
  56      * @param fc the file chooser
  57      * @return approve button text.
  58      */
  59     public abstract String getApproveButtonText(JFileChooser fc);
  60     /**
  61      * Returns the dialog title.
  62      * @param fc the file chooser
  63      * @return the dialog title.
  64      */
  65     public abstract String getDialogTitle(JFileChooser fc);
  66 
  67     /**
  68      * Rescan the current directory.
  69      * @param fc the file chooser
  70      */
  71     public abstract void rescanCurrentDirectory(JFileChooser fc);
  72     /**
  73      * Ensure the file in question is visible.
  74      * @param fc the file chooser
  75      * @param f the file
  76      */
  77     public abstract void ensureFileIsVisible(JFileChooser fc, File f);
  78 
  79     /**
  80      * Returns default button for current <code>LookAndFeel</code>.
  81      * <code>JFileChooser</code> will use this button as default button
  82      * for dialog windows.
  83      *
  84      * @param fc the {@code JFileChooser} whose default button is requested
  85      * @return the default JButton for current look and feel
  86      * @since 1.7
  87      */
  88     public JButton getDefaultButton(JFileChooser fc) {
  89         return null;
  90     }
  91 }