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messageBox.go
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messageBox.go
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package tui
import (
"fmt"
"strings"
"time"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
// Message livespan
const BASE_DELAY = 5 * time.Second
var (
// Stylesheet
message_box_s = lipgloss.NewStyle().
PaddingLeft(1).
PaddingRight(1).
Border(lipgloss.RoundedBorder(), true, true, true, true).
Align(lipgloss.Center)
mb_error_s = lipgloss.NewStyle().
Foreground(lipgloss.Color("#D64B23"))
)
type Message struct {
msg string
err error
time time.Time
}
func NewMessage(msg string) *Message {
return &Message{
msg: msg,
err: nil,
time: time.Now().Add(BASE_DELAY),
}
}
func NewMessageFromErr(err error) *Message {
return &Message{
msg: "",
err: err,
time: time.Now().Add(BASE_DELAY),
}
}
// append a message to the message box
func (mb *MessageBox) append(msg *Message) {
mb.content = append(mb.content, msg)
}
type MessageBox struct {
content []*Message
}
func (mb *MessageBox) View() string {
var b strings.Builder
for i, m := range mb.content {
if m.err != nil {
b.WriteString(
mb_error_s.Render(
fmt.Sprintf("An error happened: %q", m.err.Error())),
)
} else {
b.WriteString(
lipgloss.NewStyle().Italic(true).Render(
m.msg,
))
}
if len(mb.content) == 1 {
continue
}
if i != len(mb.content)-1 {
b.WriteString("\n")
}
}
if len(mb.content) == 0 {
return ""
}
return message_box_s.Render(b.String())
}
// Remove old message
func (mb *MessageBox) clean() {
now := time.Now()
var newMessageList []*Message
for _, m := range mb.content {
if !now.After(m.time) {
newMessageList = append(newMessageList, m)
}
}
mb.content = newMessageList
}
// Update the Message box
func (mb *MessageBox) Update(tmsg tea.Msg) tea.Cmd {
switch tmsg.(type) {
case TickMessageBox:
mb.clean()
return CmdTickerMessageBox
}
return nil
}
// wait 1 sec and then send a Tick
func CmdTickerMessageBox() tea.Msg {
time.Sleep(time.Second)
return TickMessageBox{}
}
// tea.Msg send by CmdTickerTrackname
type TickMessageBox struct{}