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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 | +} | |