opencode/packages/tui/internal/components/chat/editor.go
2025-07-02 16:08:11 -05:00

302 lines
8.2 KiB
Go

package chat
import (
"fmt"
"log/slog"
"strings"
"github.com/charmbracelet/bubbles/v2/spinner"
tea "github.com/charmbracelet/bubbletea/v2"
"github.com/charmbracelet/lipgloss/v2"
"github.com/sst/opencode/internal/app"
"github.com/sst/opencode/internal/commands"
"github.com/sst/opencode/internal/components/dialog"
"github.com/sst/opencode/internal/components/textarea"
"github.com/sst/opencode/internal/image"
"github.com/sst/opencode/internal/styles"
"github.com/sst/opencode/internal/theme"
"github.com/sst/opencode/internal/util"
)
type EditorComponent interface {
tea.Model
View(width int) string
Content(width int) string
Lines() int
Value() string
Focused() bool
Focus() (tea.Model, tea.Cmd)
Blur()
Submit() (tea.Model, tea.Cmd)
Clear() (tea.Model, tea.Cmd)
Paste() (tea.Model, tea.Cmd)
Newline() (tea.Model, tea.Cmd)
SetInterruptKeyInDebounce(inDebounce bool)
}
type editorComponent struct {
app *app.App
textarea textarea.Model
attachments []app.Attachment
spinner spinner.Model
interruptKeyInDebounce bool
}
func (m *editorComponent) Init() tea.Cmd {
return tea.Batch(m.textarea.Focus(), m.spinner.Tick, tea.EnableReportFocus)
}
func (m *editorComponent) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmds []tea.Cmd
var cmd tea.Cmd
switch msg := msg.(type) {
case spinner.TickMsg:
m.spinner, cmd = m.spinner.Update(msg)
return m, cmd
case tea.KeyPressMsg:
// Maximize editor responsiveness for printable characters
if msg.Text != "" {
m.textarea, cmd = m.textarea.Update(msg)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
case dialog.ThemeSelectedMsg:
m.textarea = createTextArea(&m.textarea)
m.spinner = createSpinner()
return m, tea.Batch(m.spinner.Tick, m.textarea.Focus())
case dialog.CompletionSelectedMsg:
if msg.IsCommand {
commandName := strings.TrimPrefix(msg.CompletionValue, "/")
updated, cmd := m.Clear()
m = updated.(*editorComponent)
cmds = append(cmds, cmd)
cmds = append(cmds, util.CmdHandler(commands.ExecuteCommandMsg(m.app.Commands[commands.CommandName(commandName)])))
return m, tea.Batch(cmds...)
} else {
existingValue := m.textarea.Value()
// Replace the current token (after last space)
lastSpaceIndex := strings.LastIndex(existingValue, " ")
if lastSpaceIndex == -1 {
m.textarea.SetValue(msg.CompletionValue + " ")
} else {
modifiedValue := existingValue[:lastSpaceIndex+1] + msg.CompletionValue
m.textarea.SetValue(modifiedValue + " ")
}
return m, nil
}
}
m.spinner, cmd = m.spinner.Update(msg)
cmds = append(cmds, cmd)
m.textarea, cmd = m.textarea.Update(msg)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
func (m *editorComponent) Content(width int) string {
t := theme.CurrentTheme()
base := styles.NewStyle().Foreground(t.Text()).Background(t.Background()).Render
muted := styles.NewStyle().Foreground(t.TextMuted()).Background(t.Background()).Render
promptStyle := styles.NewStyle().Foreground(t.Primary()).
Padding(0, 0, 0, 1).
Bold(true)
prompt := promptStyle.Render(">")
m.textarea.SetWidth(width - 6)
textarea := lipgloss.JoinHorizontal(
lipgloss.Top,
prompt,
m.textarea.View(),
)
textarea = styles.NewStyle().
Background(t.BackgroundElement()).
Width(width).
PaddingTop(1).
PaddingBottom(1).
BorderStyle(lipgloss.ThickBorder()).
BorderForeground(t.Border()).
BorderBackground(t.Background()).
BorderLeft(true).
BorderRight(true).
Render(textarea)
hint := base(m.getSubmitKeyText()) + muted(" send ")
if m.app.IsBusy() {
keyText := m.getInterruptKeyText()
if m.interruptKeyInDebounce {
hint = muted("working") + m.spinner.View() + muted(" ") + base(keyText+" again") + muted(" interrupt")
} else {
hint = muted("working") + m.spinner.View() + muted(" ") + base(keyText) + muted(" interrupt")
}
}
model := ""
if m.app.Model != nil {
model = muted(m.app.Provider.Name) + base(" "+m.app.Model.Name)
}
space := width - 2 - lipgloss.Width(model) - lipgloss.Width(hint)
spacer := styles.NewStyle().Background(t.Background()).Width(space).Render("")
info := hint + spacer + model
info = styles.NewStyle().Background(t.Background()).Padding(0, 1).Render(info)
content := strings.Join([]string{"", textarea, info}, "\n")
return content
}
func (m *editorComponent) View(width int) string {
if m.Lines() > 1 {
return lipgloss.Place(
width,
5,
lipgloss.Center,
lipgloss.Center,
"",
styles.WhitespaceStyle(theme.CurrentTheme().Background()),
)
}
return m.Content(width)
}
func (m *editorComponent) Focused() bool {
return m.textarea.Focused()
}
func (m *editorComponent) Focus() (tea.Model, tea.Cmd) {
return m, m.textarea.Focus()
}
func (m *editorComponent) Blur() {
m.textarea.Blur()
}
func (m *editorComponent) Lines() int {
return m.textarea.LineCount()
}
func (m *editorComponent) Value() string {
return m.textarea.Value()
}
func (m *editorComponent) Submit() (tea.Model, tea.Cmd) {
value := strings.TrimSpace(m.Value())
if value == "" {
return m, nil
}
if len(value) > 0 && value[len(value)-1] == '\\' {
// If the last character is a backslash, remove it and add a newline
m.textarea.SetValue(value[:len(value)-1] + "\n")
return m, nil
}
var cmds []tea.Cmd
updated, cmd := m.Clear()
m = updated.(*editorComponent)
cmds = append(cmds, cmd)
attachments := m.attachments
m.attachments = nil
cmds = append(cmds, util.CmdHandler(app.SendMsg{Text: value, Attachments: attachments}))
return m, tea.Batch(cmds...)
}
func (m *editorComponent) Clear() (tea.Model, tea.Cmd) {
m.textarea.Reset()
return m, nil
}
func (m *editorComponent) Paste() (tea.Model, tea.Cmd) {
imageBytes, text, err := image.GetImageFromClipboard()
if err != nil {
slog.Error(err.Error())
return m, nil
}
if len(imageBytes) != 0 {
attachmentName := fmt.Sprintf("clipboard-image-%d", len(m.attachments))
attachment := app.Attachment{FilePath: attachmentName, FileName: attachmentName, Content: imageBytes, MimeType: "image/png"}
m.attachments = append(m.attachments, attachment)
} else {
m.textarea.SetValue(m.textarea.Value() + text)
}
return m, nil
}
func (m *editorComponent) Newline() (tea.Model, tea.Cmd) {
m.textarea.Newline()
return m, nil
}
func (m *editorComponent) SetInterruptKeyInDebounce(inDebounce bool) {
m.interruptKeyInDebounce = inDebounce
}
func (m *editorComponent) getInterruptKeyText() string {
return m.app.Commands[commands.SessionInterruptCommand].Keys()[0]
}
func (m *editorComponent) getSubmitKeyText() string {
return m.app.Commands[commands.InputSubmitCommand].Keys()[0]
}
func createTextArea(existing *textarea.Model) textarea.Model {
t := theme.CurrentTheme()
bgColor := t.BackgroundElement()
textColor := t.Text()
textMutedColor := t.TextMuted()
ta := textarea.New()
ta.Styles.Blurred.Base = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Blurred.CursorLine = styles.NewStyle().Background(bgColor).Lipgloss()
ta.Styles.Blurred.Placeholder = styles.NewStyle().Foreground(textMutedColor).Background(bgColor).Lipgloss()
ta.Styles.Blurred.Text = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Focused.Base = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Focused.CursorLine = styles.NewStyle().Background(bgColor).Lipgloss()
ta.Styles.Focused.Placeholder = styles.NewStyle().Foreground(textMutedColor).Background(bgColor).Lipgloss()
ta.Styles.Focused.Text = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Cursor.Color = t.Primary()
ta.Prompt = " "
ta.ShowLineNumbers = false
ta.CharLimit = -1
if existing != nil {
ta.SetValue(existing.Value())
// ta.SetWidth(existing.Width())
ta.SetHeight(existing.Height())
}
return ta
}
func createSpinner() spinner.Model {
t := theme.CurrentTheme()
return spinner.New(
spinner.WithSpinner(spinner.Ellipsis),
spinner.WithStyle(
styles.NewStyle().
Background(t.Background()).
Foreground(t.TextMuted()).
Width(3).
Lipgloss(),
),
)
}
func NewEditorComponent(app *app.App) EditorComponent {
s := createSpinner()
ta := createTextArea(nil)
return &editorComponent{
app: app,
textarea: ta,
spinner: s,
interruptKeyInDebounce: false,
}
}