private void updateNewFolderButtonState() {
IStructuredSelection selection = (IStructuredSelection) fViewer.getSelection();
fSelectedContainer = null;
if (selection.size() == 1) {
Object first = selection.getFirstElement();
if (first instanceof IContainer) {
fSelectedContainer = (IContainer) first;
}
}
fNewFolderButton.setEnabled(fSelectedContainer != null);
}
