paste (EditMenu)

         # File lib/json/editor.rb, line 556
    556:       def paste(item)
    557:         c = Gtk::Clipboard.get(Gdk::Selection::PRIMARY)
    558:         if json = c.wait_for_text
    559:           window.ask_save if @changed
    560:           begin
    561:             window.edit json
    562:           rescue JSON::ParserError
    563:             window.clear
    564:           end
    565:         end
    566:       end