/*
* 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.
*/
/**
* @author Anton Avtamonov, Sergey Burlak
* @version $Revision$
*/
package javax.swing.filechooser;
import java.io.File;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.Arrays;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;
import javax.swing.Icon;
import javax.swing.UIManager;
import org.apache.harmony.misc.SystemUtils;
import org.apache.harmony.x.swing.filechooser.PlatformFile;
import org.apache.harmony.x.swing.filechooser.PlatformFileManager;
import org.apache.harmony.x.swing.internal.nls.Messages;
public abstract class FileSystemView {
private static FileSystemView instance;
private static abstract class AbstractFileSystemView extends FileSystemView {
public File createNewFolder(final File containingDir) throws IOException {
String fileName = getFirstFolderName();
int i = 1;
while (exists(containingDir, fileName)) {
fileName = getSubsequentFolderName(i++);
}
File result = createFileObject(containingDir, fileName);
result.mkdir();
return result;
}
private boolean exists(final File dir, final String fileName) {
File[] files = getFiles(dir, false);
if (files == null) {
return false;
}
for (int i = 0; i < files.length; i++) {
if (fileName.equals(files[i].getName())) {
return true;
}
}
return false;
}
private String getSubsequentFolderName(final int sequencialNumber) {
return MessageFormat.format(getSubsequentFolderNamePattern(), new Object[] {new Integer(sequencialNumber)});
}
protected abstract String getFirstFolderName();
protected abstract String getSubsequentFolderNamePattern();
}
private static class WindowsFileSystemView extends AbstractFileSystemView {
private static final String NEW_FOLDER_NAME = UIManager.getString("FileChooser.win32.newFolder");
private static final String NEW_FOLDER_SUBSEQUENT_NAME = UIManager.getString("FileChooser.win32.newFolder.subsequent");
private static PlatformFileManager fileManager = createManager();
protected String getFirstFolderName() {
return NEW_FOLDER_NAME;
}
protected String getSubsequentFolderNamePattern() {
return NEW_FOLDER_SUBSEQUENT_NAME;
}
public boolean isRoot(final File f) {
File[] roots = getRoots();
for (int i = 0; i < roots.length; i++) {
if (roots[i].equals(f)) {
return true;
}
}
return false;
}
public String getSystemDisplayName(final File f) {
if (f == null) {
return null;
}
PlatformFile ef = getPlatformFile(f);
return ef != null ? ef.getDisplayName() : super.getSystemDisplayName(f);
}
public String getSystemTypeDescription(final File f) {
if (f == null) {
return null;
}
PlatformFile ef = getPlatformFile(f);
return ef != null ? ef.getTypeName() : super.getSystemTypeDescription(f);
}
public Icon getSystemIcon(final File f) {
if (f == null) {
return null;
}
PlatformFile ef = getPlatformFile(f);
return ef != null ? ef.getIcon() : super.getSystemIcon(f);
}
public boolean isFileSystem(final File f) {
PlatformFile ef = getPlatformFile(f);
return ef != null ? ef.isFileSystem() : true;
}
public boolean isFileSystemRoot(final File dir) {
return isDrive(dir);
}
public boolean isDrive(final File dir) {
PlatformFile ef = getPlatformFile(dir);
return ef != null ? ef.isDrive() : super.isFileSystemRoot(dir);
}
public boolean isFloppyDrive(final File dir) {
PlatformFile ef = getPlatformFile(dir);
return ef != null ? ef.isFloppyDrive() : false;
}
public boolean isHiddenFile(final File f) {
PlatformFile ef = getPlatformFile(f);
return ef != null ? ef.isHidden() : false;
}
public boolean isComputerNode(final File dir) {
PlatformFile ef = getPlatformFile(dir);
return ef != null ? ef.isComputerNode() : false;
}
public File[] getRoots() {
return new File[] {fileManager.getHomeFolder()};
}
public File getDefaultDirectory() {
return fileManager.getDefaultFolder();
}
public File getHomeDirectory() {
return fileManager.getHomeFolder();
}
public File[] getFiles(final File dir, final boolean useFileHiding) {
File ef = getPlatformFile(dir);
File root = ef != null ? ef : dir;
File[] files = root.listFiles();
if (useFileHiding) {
List result = new LinkedList();
for (int i = 0; i < files.length; i++) {
if (!files[i].isHidden()) {
result.add(files[i]);
}
}
return (File[])result.toArray(new File[result.size()]);
}
return files;
}
public File getParentDirectory(final File dir) {
if (dir == null) {
return null;
}
File ef = getPlatformFile(dir);
File root = ef != null ? ef : dir;
return root.getParentFile();
}
private PlatformFile getPlatformFile(final File file) {
return fileManager.getPlatformFile(file);
}
private static PlatformFileManager createManager() {
try {
return (PlatformFileManager)Class.forName("org.apache.harmony.x.swing.filechooser.windows.WinFileManager").newInstance();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
private static class LinuxFileSystemView extends OtherFileSystemView {
public File[] getRoots() {
return new File[] { new File("/") };
}
}
private static class OtherFileSystemView extends AbstractFileSystemView {
private static final String NEW_FOLDER_NAME = UIManager.getString("FileChooser.other.newFolder");
private static final String NEW_FOLDER_SUBSEQUENT_NAME = UIManager.getString("FileChooser.other.newFolder.subsequent");
protected String getFirstFolderName() {
return NEW_FOLDER_NAME;
}
protected String getSubsequentFolderNamePattern() {
return NEW_FOLDER_SUBSEQUENT_NAME;
}
}
private Comparator CASE_INSENSITIVE_COMPARATOR = new Comparator() {
public int compare(final Object o1, final Object o2) {
return o1.toString().compareToIgnoreCase(o2.toString());
}
};
public static FileSystemView getFileSystemView() {
if (instance == null) {
if (SystemUtils.getOS() == SystemUtils.OS_WINDOWS) {
instance = new WindowsFileSystemView();
} else if (SystemUtils.getOS() == SystemUtils.OS_LINUX) {
instance = new LinuxFileSystemView();
} else {
instance = new OtherFileSystemView();
}
}
return instance;
}
public abstract File createNewFolder(final File containingDir) throws IOException;
public File createFileObject(final File dir, final String fileName) {
return new File(dir, fileName);
}
public File createFileObject(final String path) {
return new File(path);
}
public File getChild(final File parent, final String fileName) {
if (parent == null || !parent.exists()) {
return createFileObject(parent, fileName);
}
File[] files = parent.listFiles();
for (int i = 0; i < files.length; i++) {
if (files[i].getName().equals(fileName)) {
return files[i];
}
}
return createFileObject(parent, fileName);
}
public File getDefaultDirectory() {
return new File(System.getProperty("user.home"));
}
public File[] getFiles(final File dir, final boolean useFileHiding) {
File[] result = dir.listFiles();
if (useFileHiding) {
List filtered = new LinkedList();
for (int i = 0; i < result.length; i++) {
if (!result[i].isHidden()) {
filtered.add(result[i]);
}
}
result = (File[])filtered.toArray(new File[filtered.size()]);
}
if (result != null) {
Arrays.sort(result, CASE_INSENSITIVE_COMPARATOR);
} else {
result = new File[0];
}
return result;
}
public File getHomeDirectory() {
return new File(System.getProperty("user.home"));
}
public File getParentDirectory(final File dir) {
return dir != null && !isRoot(dir) ? dir.getParentFile() : null;
}
public File[] getRoots() {
return File.listRoots();
}
public String getSystemDisplayName(final File f) {
if (f == null) {
return null;
}
return f.getName();
}
public Icon getSystemIcon(final File f) {
return null;
}
public String getSystemTypeDescription(final File f) {
if (f.isDirectory()) {
return "Folder";
} else if (f.isFile()) {
return "File";
}
return null;
}
public boolean isComputerNode(final File dir) {
return false;
}
public boolean isDrive(final File dir) {
return false;
}
public boolean isFileSystem(final File f) {
return true;
}
public boolean isFileSystemRoot(final File dir) {
File[] roots = File.listRoots();
for (int i = 0; i < roots.length; i++) {
if (roots.equals(dir)) {
return true;
}
}
return false;
}
public boolean isFloppyDrive(final File dir) {
return false;
}
public boolean isHiddenFile(final File f) {
return f.isHidden();
}
public boolean isParent(final File folder, final File file) {
return getParentDirectory(file).equals(folder);
}
public boolean isRoot(final File f) {
File[] roots = getRoots();
for (int i = 0; i < roots.length; i++) {
if (roots[i].equals(f)) {
return true;
}
}
return false;
}
public Boolean isTraversable(final File f) {
return Boolean.valueOf(isDrive(f) || f.isDirectory() && f.canRead());
}
protected File createFileSystemRoot(final File f) {
throw new UnsupportedOperationException(Messages.getString("swing.27")); //$NON-NLS-1$
}
}