Struct ActionLoggerMiddleware 

pub struct ActionLoggerMiddleware { /* private fields */ }

Middleware that logs actions with configurable pattern filtering.

Supports two modes:

• Tracing only (default): logs via tracing::debug!()
• With storage: also stores in ActionLog ring buffer for overlay display

Example

use tui_dispatch_core::debug::{ActionLoggerConfig, ActionLoggerMiddleware, ActionLogConfig};
use tui_dispatch_core::{Store, StoreWithMiddleware};

// Tracing only
let middleware = ActionLoggerMiddleware::new(ActionLoggerConfig::default());

// With in-memory storage
let middleware = ActionLoggerMiddleware::with_log(ActionLogConfig::default());

// Access the log for display
if let Some(log) = middleware.log() {
    for entry in log.recent(10) {
        println!("{}", entry.params);
    }
}

Implementations

impl ActionLoggerMiddleware

pub fn new(config: ActionLoggerConfig) -> Self

Create a new action logger middleware with tracing only (no in-memory storage)

pub fn with_log(config: ActionLogConfig) -> Self

Create middleware with in-memory storage

pub fn with_default_log() -> Self

Create with default config and in-memory storage

pub fn default_filtering() -> Self

Create with default config (excludes Tick and Render), tracing only

pub fn log_all() -> Self

Create with no filtering (logs all actions), tracing only

pub fn active(self, active: bool) -> Self

Set whether the middleware is active.

When inactive (false), all methods become no-ops with zero overhead. This is useful for conditional logging based on CLI flags.

Example

let middleware = ActionLoggerMiddleware::default_filtering()
    .active(args.debug);  // Only log if --debug flag passed

pub fn is_active(&self) -> bool

Check if the middleware is active.

pub fn log(&self) -> Option<&ActionLog>

Get the action log (if storage is enabled)

pub fn log_mut(&mut self) -> Option<&mut ActionLog>

Get mutable action log

pub fn config(&self) -> &ActionLoggerConfig

Get a reference to the config

pub fn config_mut(&mut self) -> &mut ActionLoggerConfig

Get a mutable reference to the config

Trait Implementations

impl Clone for ActionLoggerMiddleware

fn clone(&self) -> ActionLoggerMiddleware

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ActionLoggerMiddleware

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A: ActionParams> Middleware<A> for ActionLoggerMiddleware

fn before(&mut self, action: &A)

Called before the action is dispatched to the reducer

fn after(&mut self, _action: &A, _state_changed: bool)

Called after the action is processed by the reducer