public void fileDeleted(FileEvent fe) {
FileObject fo = fe.getFile();
if (FileUtil.isParentOf(root, fo) && isVisible(root, fo)) {
if (fo.isFolder() || get(fo) != null) {
removeSubTree(fo);
// Now add the parent if necessary
FileObject parent = fo.getParent();
if ((FileUtil.isParentOf(root, parent) || root.equals(parent))
&& get(parent) == null
&& parent.isValid()) {
// Candidate for adding
if (!toBeRemoved(parent)) {
add(parent, true);
}
}
refreshKeysAsync();
} else {
FileObject parent = fo.getParent();
final PackageNode n = get(parent);
if (n != null) {
// #61027: workaround to a deadlock when the package is being changed from non-leaf to
// leaf:
boolean leaf = n.isLeaf();
DataFolder df = n.getDataFolder();
boolean empty = n.isEmpty(df);
if (leaf != empty) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
n.updateChildren();
}
});
} else {
n.updateChildren();
}
}
// If the parent folder only contains folders remove it
if (toBeRemoved(parent)) {
remove(parent);
refreshKeysAsync();
}
}
}
}
/** Finds all empty parents of given package and deletes them */
private void cleanEmptyKeys(FileObject fo) {
FileObject parent = fo.getParent();
// Special case for default package
if (root.equals(parent)) {
PackageNode n = get(parent);
// the default package is considered empty if it only contains folders,
// regardless of the contents of these folders (empty or not)
if (n != null && PackageDisplayUtils.isEmpty(root, false)) {
remove(root);
}
return;
}
while (FileUtil.isParentOf(root, parent)) {
PackageNode n = get(parent);
if (n != null && n.isLeaf()) {
remove(parent);
}
parent = parent.getParent();
}
}