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| 1 | /* | ||
| 2 | * Copyright (c) 2000, 2009, 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.io.FileNotFoundException; | ||
| 30 | import java.util.concurrent.Callable; | ||
| 31 | |||
| 32 | /** | ||
| 33 | * @author Michael Martak | ||
| 34 | * @since 1.4 | ||
| 35 | */ | ||
| 36 | |||
| 37 | class ShellFolderManager { | ||
| 38 | /** | ||
| 39 | * Create a shell folder from a file. | ||
| 40 | * Override to return machine-dependent behavior. | ||
| 41 | */ | ||
| 42 | public ShellFolder createShellFolder(File file) throws FileNotFoundException { | ||
| 43 | return new DefaultShellFolder(null, file); | ||
| 44 | } | ||
| 45 | |||
| 46 | /** | ||
| 47 | * @param key a <code>String</code> | ||
| 48 | * "fileChooserDefaultFolder": | ||
| 49 | * Returns a <code>File</code> - the default shellfolder for a new filechooser | ||
| 50 | * "roots": | ||
| 51 | * Returns a <code>File[]</code> - containing the root(s) of the displayable hieararchy | ||
| 52 | * "fileChooserComboBoxFolders": | ||
| 53 | * Returns a <code>File[]</code> - an array of shellfolders representing the list to | ||
| 54 | * show by default in the file chooser's combobox | ||
| 55 | * "fileChooserShortcutPanelFolders": | ||
| 56 | * Returns a <code>File[]</code> - an array of shellfolders representing well-known | ||
| 57 | * folders, such as Desktop, Documents, History, Network, Home, etc. | ||
| 58 | * This is used in the shortcut panel of the filechooser on Windows 2000 | ||
| 59 | * and Windows Me. | ||
| 60 | * "fileChooserIcon <icon>": | ||
| 61 | * Returns an <code>Image</code> - icon can be ListView, DetailsView, UpFolder, NewFolder or | ||
| 62 | * ViewMenu (Windows only). | ||
| 63 | * | ||
| 64 | * @return An Object matching the key string. | ||
| 65 | */ | ||
| 66 | public Object get(String key) { | ||
| 67 | if (key.equals("fileChooserDefaultFolder")) { | ||
| 68 | // Return the default shellfolder for a new filechooser | ||
| 69 | File homeDir = new File(System.getProperty("user.home")); | ||
| 70 | try { | ||
| 71 | return createShellFolder(homeDir); | ||
| 72 | } catch (FileNotFoundException e) { | ||
| 73 | return homeDir; | ||
| 74 | } | ||
| 75 | } else if (key.equals("roots")) { | ||
| 76 | // The root(s) of the displayable hieararchy | ||
| 77 | return File.listRoots(); | ||
| 78 | } else if (key.equals("fileChooserComboBoxFolders")) { | ||
| 79 | // Return an array of ShellFolders representing the list to | ||
| 80 | // show by default in the file chooser's combobox | ||
| 81 | return get("roots"); | ||
| 82 | } else if (key.equals("fileChooserShortcutPanelFolders")) { | ||
| 83 | // Return an array of ShellFolders representing well-known | ||
| 84 | // folders, such as Desktop, Documents, History, Network, Home, etc. | ||
| 85 | // This is used in the shortcut panel of the filechooser on Windows 2000 | ||
| 86 | // and Windows Me | ||
| 87 | return new File[] { (File)get("fileChooserDefaultFolder") }; | ||
| 88 | } | ||
| 89 | return null; | ||
| 90 | } | ||
| 91 | |||
| 92 | /** | ||
| 93 | * Does <code>dir</code> represent a "computer" such as a node on the network, or | ||
| 94 | * "My Computer" on the desktop. | ||
| 95 | */ | ||
| 96 | public boolean isComputerNode(File dir) { | ||
| 97 | return false; | ||
| 98 | } | ||
| 99 | |||
| 100 | public boolean isFileSystemRoot(File dir) { | ||
| 101 | if (dir instanceof ShellFolder && !((ShellFolder) dir).isFileSystem()) { | ||
| 102 | return false; | ||
| 103 | } | ||
| 104 | return (dir.getParentFile() == null); | ||
| 105 | } | ||
| 106 | |||
| 107 | protected ShellFolder.Invoker createInvoker() { | ||
| 108 | return new DirectInvoker(); | ||
| 109 | } | ||
| 110 | |||
| 111 | private static class DirectInvoker implements ShellFolder.Invoker { | ||
| 112 | public <T> T invoke(Callable<T> task) throws Exception { | ||
| 113 | return task.call(); | ||
| 114 | } | ||
| 115 | } | ||
| 116 | } | ||