Struct CanvasHost 

pub struct CanvasHost { /* private fields */ }

Canvas host server.

Serves HTML/CSS/JS content and handles A2UI updates.

Implementations

impl CanvasHost

pub fn new(config: CanvasConfig, workspace: PathBuf) -> Self

Create a new canvas host.

pub async fn start(&self) -> Result<()>

Start the canvas host server.

pub async fn stop(&self) -> Result<()>

Stop the canvas host server.

pub async fn is_running(&self) -> bool

Check if the host is running.

pub fn canvas_url(&self, session: &str) -> String

Get the canvas URL for a session.

pub fn a2ui_url(&self, session: &str) -> String

Get the A2UI URL for a session.

pub async fn ensure_session(&self, session: &str) -> Result<PathBuf>

Ensure a session canvas directory exists.

pub async fn write_file( &self, session: &str, path: &str, content: &[u8], ) -> Result<PathBuf>

Write a file to a session’s canvas directory.

pub async fn read_file(&self, session: &str, path: &str) -> Result<Vec<u8>>

Read a file from a session’s canvas directory.

pub async fn push_a2ui( &self, session: &str, messages: Vec<A2UIMessage>, ) -> Result<()>

Push A2UI messages to a session.

pub async fn push_text(&self, session: &str, text: &str) -> Result<()>

Push simple text to A2UI.

pub async fn get_surfaces(&self, session: &str) -> HashMap<String, A2UISurface>

Get all surfaces for a session.

pub async fn reset_a2ui(&self, session: &str) -> Result<()>

Reset A2UI state for a session.

pub async fn snapshot(&self, _session: &str) -> Result<Vec<u8>>

Capture a snapshot of the canvas (placeholder for browser-based capture).