Struct TuiStreamHandler 

pub struct TuiStreamHandler { /* private fields */ }

Renders streaming output as ratatui Lines for TUI display.

This handler produces output visually equivalent to PrettyStreamHandler but stores it as Line<'static> objects for rendering in a ratatui-based TUI.

Text content is parsed as markdown, producing styled output for bold, italic, code, headers, etc. Tool calls and errors bypass markdown parsing to preserve their explicit styling.

Chronological ordering: When a tool call arrives, the current text buffer is “frozen” into a content block, preserving the order in which events arrived.

Implementations

impl TuiStreamHandler

pub fn new(verbose: bool) -> Self

Creates a new TUI handler.

Arguments

• verbose - If true, shows session summary.

pub fn with_lines(verbose: bool, lines: Arc<Mutex<Vec<Line<'static>>>>) -> Self

Creates a TUI handler with shared lines storage.

Use this to share output lines with the TUI application.

pub fn get_lines(&self) -> Vec<Line<'static>>

Returns a clone of the collected lines.

pub fn flush_text_buffer(&mut self)

Flushes any buffered markdown text by re-parsing and updating lines.

Trait Implementations

impl StreamHandler for TuiStreamHandler

fn on_text(&mut self, text: &str)

Called when Claude emits text.

fn on_tool_call(&mut self, name: &str, _id: &str, input: &Value)

Called when Claude invokes a tool.

fn on_tool_result(&mut self, _id: &str, output: &str)

Called when a tool returns results.

fn on_error(&mut self, error: &str)

Called when an error occurs.

fn on_complete(&mut self, result: &SessionResult)

Called when session completes (verbose only).