// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.widgets;
import java.awt.Component;
import java.awt.FileDialog;
import java.awt.Frame;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.tools.Utils;
/**
* File chooser based on the AWT's {@link FileDialog} implementation,
* which looks like more a native file chooser than the Swing implementation.
* @since 7578
*/
public class NativeFileChooser extends AbstractFileChooser {
/** The instance of the fileDialog */
private final FileDialog fileDialog;
private FileFilter fileFilter;
private final List<FileFilter> fileFilters = new ArrayList<>();
private int selectionMode;
/**
* Constructs a new {@code NativeFileChooser}.
* @param file the current file/directory to point to
*/
public NativeFileChooser(File file) {
fileDialog = new FileDialog((Frame) Main.parent);
if (file != null) {
fileDialog.setDirectory(file.getAbsolutePath());
if (file.isFile()) {
fileDialog.setFile(file.toString());
}
}
}
@Override
public void addChoosableFileFilter(FileFilter filter) {
// TODO implement this after Oracle fixes JDK-4811090 / JDK-6192906
// https://bugs.openjdk.java.net/browse/JDK-4811090 : Extend awt filedialog
// https://bugs.openjdk.java.net/browse/JDK-6192906 : Add more features to java.awt.FileDialog
fileFilters.add(filter);
}
@Override
public FileFilter[] getChoosableFileFilters() {
// TODO implement this after Oracle fixes JDK-4811090 / JDK-6192906
// https://bugs.openjdk.java.net/browse/JDK-4811090 : Extend awt filedialog
// https://bugs.openjdk.java.net/browse/JDK-6192906 : Add more features to java.awt.FileDialog
return fileFilters.toArray(new FileFilter[fileFilters.size()]);
}
@Override
public File getCurrentDirectory() {
return new File(fileDialog.getDirectory());
}
@Override
public FileFilter getFileFilter() {
return fileFilter;
}
@Override
public File getSelectedFile() {
return new File(fileDialog.getDirectory() + fileDialog.getFile());
}
@Override
public File[] getSelectedFiles() {
return fileDialog.getFiles();
}
@Override
public boolean isMultiSelectionEnabled() {
return fileDialog.isMultipleMode();
}
@Override
public void setAcceptAllFileFilterUsed(boolean b) {
// TODO implement this after Oracle fixes JDK-4811090 / JDK-6192906
// https://bugs.openjdk.java.net/browse/JDK-4811090 : Extend awt filedialog
// https://bugs.openjdk.java.net/browse/JDK-6192906 : Add more features to java.awt.FileDialog
}
@Override
public void setCurrentDirectory(File f) {
fileDialog.setDirectory(f.toString());
}
@Override
public void setDialogTitle(String title) {
fileDialog.setTitle(title);
}
@Override
public void setFileFilter(final FileFilter cff) {
FilenameFilter filter = (directory, fileName) -> cff.accept(new File(directory.getAbsolutePath() + fileName));
fileDialog.setFilenameFilter(filter);
fileFilter = cff;
}
@Override
public void setFileSelectionMode(int selectionMode) {
// CHECKSTYLE.OFF: LineLength
// TODO implement this after Oracle fixes JDK-6192906 / JDK-6699863 / JDK-6927978 / JDK-7125172:
// https://bugs.openjdk.java.net/browse/JDK-6192906 : Add more features to java.awt.FileDialog
// https://bugs.openjdk.java.net/browse/JDK-6699863 : awt filedialog cannot select directories
// https://bugs.openjdk.java.net/browse/JDK-6927978 : Directory Selection standard dialog support
// https://bugs.openjdk.java.net/browse/JDK-7125172 : FileDialog objects don't allow directory AND files selection simultaneously
// There is however a basic support for directory selection on OS X, with Java >= 7u40:
// http://stackoverflow.com/questions/1224714/how-can-i-make-a-java-filedialog-accept-directories-as-its-filetype-in-os-x/1224744#1224744
// https://bugs.openjdk.java.net/browse/JDK-7161437 : [macosx] awt.FileDialog doesn't respond appropriately for mac when selecting folders
// CHECKSTYLE.ON: LineLength
this.selectionMode = selectionMode;
}
@Override
public void setMultiSelectionEnabled(boolean multiple) {
fileDialog.setMultipleMode(multiple);
}
@Override
public void setSelectedFile(File file) {
if (file == null) return;
fileDialog.setDirectory(file.getParent());
fileDialog.setFile(file.getName());
}
@Override
public int showOpenDialog(Component parent) {
boolean appleProperty = Main.isPlatformOsx() && selectionMode == JFileChooser.DIRECTORIES_ONLY;
if (appleProperty) {
Utils.updateSystemProperty("apple.awt.fileDialogForDirectories", "true");
}
try {
fileDialog.setLocale(locale);
fileDialog.setMode(FileDialog.LOAD);
fileDialog.setVisible(true);
return fileDialog.getFile() == null ? JFileChooser.CANCEL_OPTION : JFileChooser.APPROVE_OPTION;
} finally {
if (appleProperty) {
Utils.updateSystemProperty("apple.awt.fileDialogForDirectories", "false");
}
}
}
@Override
public int showSaveDialog(Component parent) {
fileDialog.setLocale(locale);
fileDialog.setMode(FileDialog.SAVE);
fileDialog.setVisible(true);
return fileDialog.getFile() == null ? JFileChooser.CANCEL_OPTION : JFileChooser.APPROVE_OPTION;
}
/**
* Determines if the selection mode is suuported by the native file chooser.
* @param selectionMode the selection mode
* @return {@code true} if the selection mode is supported, {@code false} otherwise
*/
public static boolean supportsSelectionMode(int selectionMode) {
switch (selectionMode) {
case JFileChooser.FILES_AND_DIRECTORIES:
// CHECKSTYLE.OFF: LineLength
// https://bugs.openjdk.java.net/browse/JDK-7125172 : FileDialog objects don't allow directory AND files selection simultaneously
return false;
case JFileChooser.DIRECTORIES_ONLY:
// http://stackoverflow.com/questions/1224714/how-can-i-make-a-java-filedialog-accept-directories-as-its-filetype-in-os-x/1224744#1224744
// CHECKSTYLE.ON: LineLength
return Main.isPlatformOsx();
case JFileChooser.FILES_ONLY:
default:
return true;
}
}
}