aerc/commands/move-tab.go

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2020-03-02 19:54:42 +00:00
package commands
import (
"fmt"
"strconv"
"strings"
"git.sr.ht/~sircmpwn/aerc/widgets"
)
type MoveTab struct{}
func init() {
register(MoveTab{})
}
func (MoveTab) Aliases() []string {
return []string{"move-tab"}
}
func (MoveTab) Complete(aerc *widgets.Aerc, args []string) []string {
return nil
}
func (MoveTab) Execute(aerc *widgets.Aerc, args []string) error {
if len(args) == 1 {
return fmt.Errorf("Usage: %s [+|-]<index>", args[0])
}
joinedArgs := strings.Join(args[1:], "")
n, err := strconv.Atoi(joinedArgs)
if err != nil {
return fmt.Errorf("failed to parse index argument: %v", err)
}
i := aerc.SelectedTabIndex()
l := aerc.NumTabs()
if strings.HasPrefix(joinedArgs, "+") {
i = (i + n) % l
} else if strings.HasPrefix(joinedArgs, "-") {
i = (((i + n) % l) + l) % l
} else {
i = n
}
aerc.MoveTab(i)
return nil
}