/*
* Copyright 2003-2016 JetBrains s.r.o.
*
* Licensed 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 jetbrains.mps.ide.ui.filechoosers.treefilechooser;
import com.intellij.openapi.fileChooser.FileChooserDescriptor;
import com.intellij.openapi.fileChooser.FileChooserDialog;
import com.intellij.openapi.fileChooser.FileChooserFactory;
import com.intellij.openapi.vfs.VirtualFile;
import jetbrains.mps.ide.vfs.VirtualFileUtils;
import jetbrains.mps.util.PathManager;
import jetbrains.mps.vfs.FileSystem;
import jetbrains.mps.vfs.IFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.JComponent;
import javax.swing.JOptionPane;
import java.awt.Component;
import java.awt.Frame;
import java.util.ArrayList;
import java.util.List;
public class TreeFileChooser {
public static final int MODE_FILES = 1;
public static final int MODE_DIRECTORIES = 2;
public static final int MODE_FILES_AND_DIRECTORIES = 3;
public static final IFileFilter ALL_FILES_FILTER = new IFileFilter() {
@Override
public boolean accept(IFile file) {
return true;
}
};
/////////////////////////////
@NotNull
private static IFile ourInitialSelectedFile = FileSystem.getInstance().getFile(PathManager.getHomePath());
private int myMode = MODE_FILES;
private IFileFilter myFileFilter = ALL_FILES_FILTER;
private String myTitle = null;
private boolean myDirectoriesAlwaysVisible = false;
/////////////////////////////
public void setMode(int mode) {
myMode = mode;
}
public void setExtensionFileFilter(final String... extension) {
myFileFilter = new IFileFilter() {
@Override
public boolean accept(IFile file) {
if (file.isDirectory()) return true;
for (String e : extension) {
if (file.getName().toLowerCase().endsWith(e)) return true;
}
return false;
}
};
}
public void setFileFilter(IFileFilter fileFilter) {
myFileFilter = fileFilter;
}
public void setTitle(String title) {
myTitle = title;
}
public void setInitialFile(IFile file) {
ourInitialSelectedFile = file;
}
public void setDirectoriesAreAlwaysVisible(boolean visible) {
myDirectoriesAlwaysVisible = visible;
}
public List<IFile> showMultiSelectionDialog(Component owner) {
return showDialogInternal(JOptionPane.getFrameForComponent(owner), true);
}
@Nullable
public IFile showDialog(Frame owner) {
List<IFile> files = showDialogInternal(owner, false);
if (files.isEmpty()) return null;
return files.get(0);
}
@Nullable
public IFile showDialog(JComponent owner) {
return showDialog(JOptionPane.getFrameForComponent(owner));
}
@Nullable
public IFile showDialog() {
return showDialog((Frame) null);
}
private List<IFile> showDialogInternal(Frame owner, boolean multipleSelection) {
if (owner == null) owner = JOptionPane.getRootFrame();
setAdditionalModeFilter(myMode);
List<IFile> res = new ArrayList<IFile>();
FileChooserDescriptor descriptor = new FileChooserDescriptor(myMode != MODE_DIRECTORIES, myMode != MODE_FILES, true, true, false, multipleSelection) {
@Override
public boolean isFileVisible(VirtualFile file, boolean showHiddenFiles) {
if (!super.isFileVisible(file, showHiddenFiles)) return false;
if (file.isDirectory() && myDirectoriesAlwaysVisible) {
return true;
}
return myFileFilter.accept(FileSystem.getInstance().getFileByPath(file.getPath()));
}
};
descriptor.setTitle(myTitle == null ? "Select File" : myTitle);
descriptor.setShowFileSystemRoots(true);
FileChooserDialog dialog = FileChooserFactory.getInstance().createFileChooser(descriptor, null, owner);
VirtualFile selection = VirtualFileUtils.getOrCreateVirtualFile(ourInitialSelectedFile);
for (VirtualFile file : dialog.choose(selection, null)) {
res.add(FileSystem.getInstance().getFileByPath(file.getPath()));
}
if (!res.isEmpty()) ourInitialSelectedFile = res.get(0);
return res;
}
private void setAdditionalModeFilter(int mode) {
if (mode == MODE_DIRECTORIES) {
//show only directories
myFileFilter = new IFileFilter() {
IFileFilter myInnerFilter = myFileFilter;
@Override
public boolean accept(IFile file) {
if (!file.isDirectory()) return false;
return myInnerFilter.accept(file);
}
};
}
}
}