# File lib/json/editor.rb, line 444 444: def collapse_expand(item) 445: if current = selection.selected 446: if row_expanded?(current.path) 447: collapse_row(current.path) 448: else 449: expand_row(current.path, true) 450: end 451: else 452: toplevel.display_status("Append a node into the root first!") 453: end 454: end