Struct ChatMode 

pub struct ChatMode {
    input_history: Vec<String>,
    history_index: Option<usize>,
    completer: ChatCompleter,
    current_suggestion: Option<String>,
}

Manages the state and logic for the chat input and display.

Fields

input_history: Vec<String>

History of user input commands/messages.

history_index: Option<usize>

Current index in the input history for navigation.

completer: ChatCompleter

Completer for command and peer ID suggestions.

current_suggestion: Option<String>

The currently suggested completion for the input.

Implementations

impl ChatMode

pub async fn handle_key( &mut self, state: &mut UIState, key: KeyEvent, action_tx: &UnboundedSender<UIAction>, ) -> Result<()>

Handles a key event in chat mode.

This function processes various key presses, including typing characters, navigating input history, moving the cursor, and executing commands.

Arguments

• state - The current UI state.
• key - The KeyEvent to handle.
• action_tx - The sender for dispatching UI actions.

Errors

This function returns an error if a command execution fails.

fn update_suggestion(&mut self, state: &UIState)

Updates the current input suggestion based on the input buffer content.

This is typically used for command autocompletion.

fn navigate_history(&mut self, state: &mut UIState, up: bool)

Navigates through the input history.

Arguments

• state - The current UI state.
• up - If true, navigates up (older entries); if false, navigates down (newer entries).

async fn execute_command( &self, input: &str, action_tx: &UnboundedSender<UIAction>, ) -> Result<()>

Executes a command based on the input string.

This function parses the input, identifies commands like “send”, and dispatches appropriate UIActions.

Arguments

• input - The input string to parse and execute.
• action_tx - The sender for dispatching UI actions.

Errors

This function returns an error if the action sender fails.

impl ChatMode

pub fn render( &self, stdout: &mut impl Write, state: &UIState, area: (u16, u16, u16, u16), node: Option<&Node>, ) -> Result<()>

Renders the chat interface, including messages and suggestions.

This function draws the chat history, input buffer, and any active suggestions to the terminal. It handles scrolling and message formatting.

Arguments

• stdout - A mutable reference to the output stream.
• state - The current UI state.
• area - The (x, y, width, height) coordinates of the rendering area.
• node - An optional reference to the application’s Node for message decryption and friend information.

Errors

This function returns an error if writing to the output stream fails.

impl ChatMode

pub fn new() -> Self

Creates a new ChatMode instance.

pub fn update_friends(&mut self, friends: Vec<String>)

Updates the list of friends for the completer.

pub fn update_discovered_peers(&mut self, peers: Vec<String>)

Updates the list of discovered peers for the completer.

pub fn get_current_suggestion(&self) -> Option<&str>

Returns the current suggestion string, if any.