func UiApplianceName(ui *gui.DialogUi, defaultName string, driver deployer.EnvDriver) (string, error) { var name string var err error for { ui.SetSize(8, len(defaultName)+10) ui.SetTitle("Virtual machine name") ui.HelpButton(true) ui.SetHelpLabel("Back") name, err = ui.Inputbox(defaultName) if err != nil { return "", err } if name != "" { name = strings.Replace(name, ".", "-", -1) if driver != nil { if driver.DomainExists(name) { ui.Output(gui.Warning, "domain "+name+" already exists.", "Press <OK> to return to menu.") continue } } break } } return name, nil }