package msgview import ( "errors" "fmt" "strconv" "git.sr.ht/~sircmpwn/aerc/widgets" ) func init() { register("next-part", NextPrevPart) register("prev-part", NextPrevPart) } func nextPrevPartUsage(cmd string) error { return errors.New(fmt.Sprintf("Usage: %s [n]", cmd)) } func NextPrevPart(aerc *widgets.Aerc, args []string) error { if len(args) > 2 { return nextPrevPartUsage(args[0]) } var ( n int = 1 err error ) if len(args) > 1 { n, err = strconv.Atoi(args[1]) if err != nil { return nextPrevPartUsage(args[0]) } } mv, _ := aerc.SelectedTab().(*widgets.MessageViewer) for ; n > 0; n-- { if args[0] == "prev-part" { mv.PreviousPart() } else { mv.NextPart() } } return nil }