| /* |
| * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.awt.shell; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.util.concurrent.Callable; |
| |
| /** |
| * @author Michael Martak |
| * @since 1.4 |
| */ |
| |
| class ShellFolderManager { |
| /** |
| * Create a shell folder from a file. |
| * Override to return machine-dependent behavior. |
| */ |
| public ShellFolder createShellFolder(File file) throws FileNotFoundException { |
| return new DefaultShellFolder(null, file); |
| } |
| |
| /** |
| * @param key a {@code String} |
| * "fileChooserDefaultFolder": |
| * Returns a {@code File} - the default shellfolder for a new filechooser |
| * "roots": |
| * Returns a {@code File[]} - containing the root(s) of the displayable hierarchy |
| * "fileChooserComboBoxFolders": |
| * Returns a {@code File[]} - an array of shellfolders representing the list to |
| * show by default in the file chooser's combobox |
| * "fileChooserShortcutPanelFolders": |
| * Returns a {@code File[]} - an array of shellfolders representing well-known |
| * folders, such as Desktop, Documents, History, Network, Home, etc. |
| * This is used in the shortcut panel of the filechooser on Windows 2000 |
| * and Windows Me. |
| * "fileChooserIcon <icon>": |
| * Returns an {@code Image} - icon can be ListView, DetailsView, UpFolder, NewFolder or |
| * ViewMenu (Windows only). |
| * |
| * @return An Object matching the key string. |
| */ |
| public Object get(String key) { |
| if (key.equals("fileChooserDefaultFolder")) { |
| // Return the default shellfolder for a new filechooser |
| File homeDir = new File(System.getProperty("user.home")); |
| try { |
| return createShellFolder(homeDir); |
| } catch (FileNotFoundException e) { |
| return homeDir; |
| } |
| } else if (key.equals("roots")) { |
| // The root(s) of the displayable hierarchy |
| return File.listRoots(); |
| } else if (key.equals("fileChooserComboBoxFolders")) { |
| // Return an array of ShellFolders representing the list to |
| // show by default in the file chooser's combobox |
| return get("roots"); |
| } else if (key.equals("fileChooserShortcutPanelFolders")) { |
| // Return an array of ShellFolders representing well-known |
| // folders, such as Desktop, Documents, History, Network, Home, etc. |
| // This is used in the shortcut panel of the filechooser on Windows 2000 |
| // and Windows Me |
| return new File[] { (File)get("fileChooserDefaultFolder") }; |
| } |
| return null; |
| } |
| |
| /** |
| * Does {@code dir} represent a "computer" such as a node on the network, or |
| * "My Computer" on the desktop. |
| */ |
| public boolean isComputerNode(File dir) { |
| return false; |
| } |
| |
| public boolean isFileSystemRoot(File dir) { |
| if (dir instanceof ShellFolder && !((ShellFolder) dir).isFileSystem()) { |
| return false; |
| } |
| return (dir.getParentFile() == null); |
| } |
| |
| protected ShellFolder.Invoker createInvoker() { |
| return new DirectInvoker(); |
| } |
| |
| private static class DirectInvoker implements ShellFolder.Invoker { |
| public <T> T invoke(Callable<T> task) throws Exception { |
| return task.call(); |
| } |
| } |
| } |