forked from Mirrors/bubbletea
82 lines
1.3 KiB
Go
82 lines
1.3 KiB
Go
package main
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// A simple program demonstrating the text input component from the Bubbles
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// component library.
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import (
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"fmt"
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"log"
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"github.com/charmbracelet/bubbles/textarea"
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tea "github.com/charmbracelet/bubbletea"
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)
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func main() {
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p := tea.NewProgram(initialModel())
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if _, err := p.Run(); err != nil {
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log.Fatal(err)
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}
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}
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type errMsg error
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type model struct {
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textarea textarea.Model
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err error
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}
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func initialModel() model {
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ti := textarea.New()
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ti.Placeholder = "Once upon a time..."
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ti.Focus()
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return model{
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textarea: ti,
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err: nil,
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}
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}
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func (m model) Init() tea.Cmd {
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return textarea.Blink
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}
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func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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var cmds []tea.Cmd
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var cmd tea.Cmd
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switch msg := msg.(type) {
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case tea.KeyMsg:
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switch msg.Type {
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case tea.KeyEsc:
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if m.textarea.Focused() {
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m.textarea.Blur()
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}
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case tea.KeyCtrlC:
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return m, tea.Quit
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default:
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if !m.textarea.Focused() {
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cmd = m.textarea.Focus()
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cmds = append(cmds, cmd)
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}
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}
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// We handle errors just like any other message
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case errMsg:
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m.err = msg
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return m, nil
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}
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m.textarea, cmd = m.textarea.Update(msg)
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cmds = append(cmds, cmd)
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return m, tea.Batch(cmds...)
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}
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func (m model) View() string {
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return fmt.Sprintf(
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"Tell me a story.\n\n%s\n\n%s",
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m.textarea.View(),
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"(ctrl+c to quit)",
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) + "\n\n"
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}
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