Method renderResizeHandle

pkg/tui/tui.go:2482–2544

renderResizeHandle renders the draggable separator between content and bottom panel.

(width int)

// renderResizeHandle renders the draggable separator between content and bottom panel.
func (m *appModel) renderResizeHandle(width int) string {
	if width <= 0 {
		return ""
	}

	innerWidth := width - appPaddingHorizontal

	// Use brighter style when actively dragging
	centerStyle := styles.ResizeHandleHoverStyle
	if m.isDragging {
		centerStyle = styles.ResizeHandleActiveStyle
	}

	// Show a small centered highlight when hovered or dragging
	centerPart := strings.Repeat("─", min(resizeHandleWidth, innerWidth))
	handle := centerStyle.Render(centerPart)

	// Always center handle on full width
	fullLine := lipgloss.PlaceHorizontal(
		max(0, innerWidth), lipgloss.Center, handle,
		lipgloss.WithWhitespaceChars("─"),
		lipgloss.WithWhitespaceStyle(styles.ResizeHandleStyle),
	)

	var result string
	switch {
	case m.sessionState.PauseState() == service.PausePaused:
		// Static indicator: the loop is idle until the user resumes.
		resumeKey := styles.HighlightWhiteStyle.Render("/pause")
		suffix := " " + styles.WarningStyle.Render("⏸ Paused") + " (" + resumeKey + " to resume)"
		suffixWidth := lipgloss.Width(suffix)
		result = lipgloss.NewStyle().MaxWidth(innerWidth-suffixWidth).Render(fullLine) + suffix

	case m.sessionState.PauseState() == service.PausePausing:
		// The agent is finishing the in-flight request before it pauses.
		suffix := " " + m.workingSpinner.View() + " " + styles.WarningStyle.Render("Pausing…") + " (finishing current request)"
		suffixWidth := lipgloss.Width(suffix)
		result = lipgloss.NewStyle().MaxWidth(innerWidth-suffixWidth).Render(fullLine) + suffix

	case m.chatPage.IsWorking():
		// Truncate right side and append spinner (handle stays centered)
		workingText := "Working…"
		if queueLen := m.chatPage.QueueLength(); queueLen > 0 {
			workingText = fmt.Sprintf("Working… (%d queued)", queueLen)
		}
		suffix := " " + m.workingSpinner.View() + " " + styles.SpinnerDotsHighlightStyle.Render(workingText)
		cancelKeyPart := styles.HighlightWhiteStyle.Render("Esc")
		suffix += " (" + cancelKeyPart + " to interrupt)"
		suffixWidth := lipgloss.Width(suffix)
		result = lipgloss.NewStyle().MaxWidth(innerWidth-suffixWidth).Render(fullLine) + suffix

	case m.chatPage.QueueLength() > 0:
		queueText := fmt.Sprintf("%d queued", m.chatPage.QueueLength())
		suffix := " " + styles.WarningStyle.Render(queueText) + " "
		suffixWidth := lipgloss.Width(suffix)
		result = lipgloss.NewStyle().MaxWidth(innerWidth-suffixWidth).Render(fullLine) + suffix

	default: