store_file (MainWindow)

          # File lib/json/editor.rb, line 1217
    1217:       def store_file(path)
    1218:         if path
    1219:           data = Editor.model2data(@treeview.model.iter_first)
    1220:           File.open(path + '.tmp', 'wb') do |output|
    1221:             data or break
    1222:             if @options_menu.pretty_item.active?
    1223:               output.puts JSON.pretty_generate(data, :max_nesting => false)
    1224:             else
    1225:               output.write JSON.generate(data, :max_nesting => false)
    1226:             end
    1227:           end
    1228:           File.rename path + '.tmp', path
    1229:           @filename = path
    1230:           toplevel.display_status("Saved data to '#@filename'.")
    1231:           unchange
    1232:         end
    1233:       rescue SystemCallError => e
    1234:         Editor.error_dialog(self, "Failed to store JSON file: #{e}!")
    1235:       end