forked from Mirrors/bubbletea
57 lines
952 B
Go
57 lines
952 B
Go
package main
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// A simple program that opens the alternate screen buffer then counts down
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// from 5 and then exits.
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import (
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"fmt"
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"log"
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"time"
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tea "github.com/charmbracelet/bubbletea"
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)
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type model int
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type tickMsg time.Time
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func main() {
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p := tea.NewProgram(model(5), tea.WithAltScreen())
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if err := p.Start(); err != nil {
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log.Fatal(err)
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}
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}
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func (m model) Init() tea.Cmd {
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return tea.Batch(tick(), tea.EnterAltScreen)
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}
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func (m model) Update(message tea.Msg) (tea.Model, tea.Cmd) {
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switch msg := message.(type) {
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case tea.KeyMsg:
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switch msg.String() {
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case "q", "esc", "ctrl+c":
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return m, tea.Quit
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}
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case tickMsg:
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m--
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if m <= 0 {
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return m, tea.Quit
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}
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return m, tick()
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}
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return m, nil
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}
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func (m model) View() string {
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return fmt.Sprintf("\n\n Hi. This program will exit in %d seconds...", m)
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}
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func tick() tea.Cmd {
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return tea.Tick(time.Second, func(t time.Time) tea.Msg {
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return tickMsg(t)
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})
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}
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