@Override
protected boolean isAlwaysShowPlus(NodeDescriptor nodeDescriptor) {
Object element = nodeDescriptor.getElement();
if (element != null) {
FileElement descriptor = (FileElement) element;
VirtualFile file = descriptor.getFile();
if (file != null) {
if (myChooserDescriptor.isChooseJarContents() && FileElement.isArchive(file)) {
return true;
}
return file.isDirectory();
}
}
return true;
}
public void valueChanged(TreeSelectionEvent e) {
TreePath[] paths = e.getPaths();
boolean enabled = true;
for (TreePath treePath : paths) {
if (!e.isAddedPath(treePath)) {
continue;
}
DefaultMutableTreeNode node = (DefaultMutableTreeNode) treePath.getLastPathComponent();
Object userObject = node.getUserObject();
if (!(userObject instanceof FileNodeDescriptor)) {
enabled = false;
break;
}
FileElement descriptor = ((FileNodeDescriptor) userObject).getElement();
VirtualFile file = descriptor.getFile();
enabled = file != null && myChooserDescriptor.isFileSelectable(file);
}
setOKActionEnabled(enabled);
}