forked from Mirrors/bubbletea
94 lines
1.8 KiB
Go
94 lines
1.8 KiB
Go
package main
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// An example illustrating how to pipe in data to a Bubble Tea application.
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// More so, this serves as proof that Bubble Tea will automatically listen for
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// keystrokes when input is not a TTY, such as when data is piped or redirected
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// in.
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import (
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"bufio"
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/charmbracelet/bubbles/textinput"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/charmbracelet/lipgloss"
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)
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func main() {
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stat, err := os.Stdin.Stat()
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if err != nil {
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panic(err)
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}
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if stat.Mode()&os.ModeNamedPipe == 0 && stat.Size() == 0 {
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fmt.Println("Try piping in some text.")
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os.Exit(1)
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}
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reader := bufio.NewReader(os.Stdin)
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var b strings.Builder
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for {
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r, _, err := reader.ReadRune()
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if err != nil && err == io.EOF {
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break
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}
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_, err = b.WriteRune(r)
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if err != nil {
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fmt.Println("Error getting input:", err)
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os.Exit(1)
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}
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}
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model := newModel(strings.TrimSpace(b.String()))
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if _, err := tea.NewProgram(model).Run(); err != nil {
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fmt.Println("Couldn't start program:", err)
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os.Exit(1)
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}
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}
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type model struct {
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userInput textinput.Model
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}
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func newModel(initialValue string) (m model) {
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i := textinput.New()
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i.Prompt = ""
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i.CursorStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("63"))
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i.Width = 48
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i.SetValue(initialValue)
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i.CursorEnd()
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i.Focus()
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m.userInput = i
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return
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}
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func (m model) Init() tea.Cmd {
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return textinput.Blink
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}
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func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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if key, ok := msg.(tea.KeyMsg); ok {
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switch key.Type {
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case tea.KeyCtrlC, tea.KeyEscape, tea.KeyEnter:
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return m, tea.Quit
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}
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}
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var cmd tea.Cmd
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m.userInput, cmd = m.userInput.Update(msg)
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return m, cmd
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}
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func (m model) View() string {
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return fmt.Sprintf(
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"\nYou piped in: %s\n\nPress ^C to exit",
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m.userInput.View(),
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)
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}
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