/
selectwithadd.go
68 lines (55 loc) · 1.47 KB
/
selectwithadd.go
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package prompts
import (
"os"
"strconv"
"github.com/manifoldco/promptui"
)
// SelectedAdd is returned when a user has requested to create the given value
var SelectedAdd = promptui.SelectedAdd
// selectWithAdd is a composite of promptui.Select and promptui.Prompt as
// promptui.SelectWithAdd does not support templating and several other
// features of promptui.Select.
type selectWithAdd struct {
Label string
AddLabel string
Items []string
IsVimMode bool
Validate promptui.ValidateFunc
SelectTemplates *promptui.SelectTemplates
PromptTemplates *promptui.PromptTemplates
}
func (sa *selectWithAdd) Run() (int, string, error) {
if len(sa.Items) > 0 {
newItems := append([]string{sa.AddLabel}, sa.Items...)
s := promptui.Select{
Label: sa.Label,
Items: newItems,
Templates: sa.SelectTemplates,
IsVimMode: sa.IsVimMode,
}
idx, value, err := s.Run()
if err != nil {
return 0, "", err
}
if idx != 0 {
return idx - 1, value, nil
}
os.Stdout.Write([]byte(upLine(1) + "\r" + clearLine))
}
p := promptui.Prompt{
Label: sa.AddLabel,
Validate: sa.Validate,
Templates: sa.PromptTemplates,
IsVimMode: sa.IsVimMode,
}
value, err := p.Run()
return SelectedAdd, value, err
}
const esc = "\033["
const clearLine = esc + "2K"
func upLine(n uint) string {
return movementCode(n, 'A')
}
func movementCode(n uint, code rune) string {
return esc + strconv.FormatUint(uint64(n), 10) + string(code)
}