Module app 

Structs

App

BlockCache

Cached rendered lines for a block. Stores a version counter so the cache is only recomputed when the block content actually changes.

ChatMessage

ChatViewport

Single owner of all chat layout state: scroll, per-message heights, and prefix sums.

FocusManager

Focus claim manager: latest valid claim wins; invalid claims are dropped during normalization.

IncrementalMarkdown

Paragraph-level incremental markdown cache.

InlinePermission

Permission state stored inline on a ToolCallInfo, so the permission controls render inside the tool call block (unified edit/permission UX).

InputState

LoginHint

Login hint displayed when authentication is required during connection. Rendered as a banner above the input field.

ModeInfo

ModeState

SelectionPoint

SelectionState

TodoItem

A single todo item from Claude’s TodoWrite tool call.

ToolCallInfo

WelcomeBlock

Enums

AppStatus

FocusOwner

Effective owner of directional/navigation keys.

FocusTarget

Logical focus target that can claim directional key navigation.

HelpView

MessageBlock

Ordered content block - text and tool calls interleaved as they arrive.

MessageRole

SelectionKind

TodoStatus

Functions

create_app

Create the App struct in Connecting state. No I/O - returns immediately.

handle_acp_event

handle_terminal_event

run_tui

start_connection

Spawn the background connection task. Uses spawn_local so it runs on the same LocalSet as the TUI - Rc<Connection> stays on one thread.

start_update_check