| /* |
| |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| |
| */ |
| package org.apache.batik.apps.svgbrowser; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.ArrayList; |
| |
| import javax.swing.filechooser.FileSystemView; |
| |
| /** |
| * Work around FileSystemView implementation bug on the Windows |
| * platform. See: |
| * |
| * <a href="http://forums.java.sun.com/thread.jsp?forum=38&thread=71491"> |
| * Using JFileChooser in WebStart-deployed application</a> |
| * |
| * @author <a href="mailto:vhardy@apache.org">Vincent Hardy</a> |
| * @version $Id$ |
| */ |
| |
| // This class is necessary due to an annoying bug on Windows NT where |
| // instantiating a JFileChooser with the default FileSystemView will |
| // cause a "drive A: not ready" error every time. I grabbed the |
| // Windows FileSystemView impl from the 1.3 SDK and modified it so |
| // as to not use java.io.File.listRoots() to get fileSystem roots. |
| // java.io.File.listRoots() does a SecurityManager.checkRead() which |
| // causes the OS to try to access drive A: even when there is no disk, |
| // causing an annoying "abort, retry, ignore" popup message every time |
| // we instantiate a JFileChooser! |
| // |
| // Instead of calling listRoots() we use a straightforward alternate |
| // method of getting file system roots. |
| |
| class WindowsAltFileSystemView extends FileSystemView { |
| public static final String EXCEPTION_CONTAINING_DIR_NULL |
| = "AltFileSystemView.exception.containing.dir.null"; |
| |
| public static final String EXCEPTION_DIRECTORY_ALREADY_EXISTS |
| = "AltFileSystemView.exception.directory.already.exists"; |
| |
| public static final String NEW_FOLDER_NAME = |
| " AltFileSystemView.new.folder.name"; |
| |
| public static final String FLOPPY_DRIVE = |
| "AltFileSystemView.floppy.drive"; |
| |
| /** |
| * Returns true if the given file is a root. |
| */ |
| public boolean isRoot(File f) { |
| if(!f.isAbsolute()) { |
| return false; |
| } |
| |
| String parentPath = f.getParent(); |
| if(parentPath == null) { |
| return true; |
| } else { |
| File parent = new File(parentPath); |
| return parent.equals(f); |
| } |
| } |
| |
| /** |
| * creates a new folder with a default folder name. |
| */ |
| public File createNewFolder(File containingDir) throws |
| IOException { |
| if(containingDir == null) { |
| throw new IOException(Resources.getString(EXCEPTION_CONTAINING_DIR_NULL)); |
| } |
| File newFolder = null; |
| // Using NT's default folder name |
| newFolder = createFileObject(containingDir, |
| Resources.getString(NEW_FOLDER_NAME)); |
| int i = 2; |
| while (newFolder.exists() && (i < 100)) { |
| newFolder = createFileObject |
| (containingDir, Resources.getString(NEW_FOLDER_NAME) + " (" + i + ')' ); |
| i++; |
| } |
| |
| if(newFolder.exists()) { |
| throw new IOException |
| (Resources.formatMessage(EXCEPTION_DIRECTORY_ALREADY_EXISTS, |
| new Object[]{newFolder.getAbsolutePath()})); |
| } else { |
| newFolder.mkdirs(); |
| } |
| |
| return newFolder; |
| } |
| |
| /** |
| * Returns whether a file is hidden or not. On Windows |
| * there is currently no way to get this information from |
| * io.File, therefore always return false. |
| */ |
| public boolean isHiddenFile(File f) { |
| return false; |
| } |
| |
| /** |
| * Returns all root partitians on this system. On Windows, this |
| * will be the A: through Z: drives. |
| */ |
| public File[] getRoots() { |
| |
| List rootsVector = new ArrayList(); |
| |
| // Create the A: drive whether it is mounted or not |
| FileSystemRoot floppy = new FileSystemRoot(Resources.getString(FLOPPY_DRIVE) |
| + "\\"); |
| rootsVector.add(floppy); |
| |
| // Run through all possible mount points and check |
| // for their existance. |
| for (char c = 'C'; c <= 'Z'; c++) { |
| char[] device = {c, ':', '\\'}; |
| String deviceName = new String(device); |
| File deviceFile = new FileSystemRoot(deviceName); |
| if (deviceFile != null && deviceFile.exists()) { |
| rootsVector.add(deviceFile); |
| } |
| } |
| File[] roots = new File[rootsVector.size()]; |
| rootsVector.toArray(roots); |
| return roots; |
| } |
| |
| static class FileSystemRoot extends File { |
| public FileSystemRoot(File f) { |
| super(f, ""); |
| } |
| |
| public FileSystemRoot(String s) { |
| super(s); |
| } |
| |
| public boolean isDirectory() { |
| return true; |
| } |
| } |
| |
| } |
| |