Struct ToastQueue 

pub struct ToastQueue { /* private fields */ }

Bounded queue of visible toasts.

When full, pushing a new toast drops the oldest entry to make room. Expired toasts are dropped by ToastQueue::tick.

Implementations

impl ToastQueue

pub const DEFAULT_LIFETIME: Duration

Default visible lifetime used by ToastQueue::push.

pub fn new() -> Self

Construct an empty queue with the default capacity (3 visible).

pub fn push(&mut self, message: impl Into<String>, level: ToastLevel)

Push a new toast with the default 3-second lifetime. Drops the oldest visible toast if the queue is already at capacity.

pub fn push_with_lifetime( &mut self, message: impl Into<String>, level: ToastLevel, lifetime: Duration, )

Push a toast with a caller-supplied lifetime. Mainly useful for tests that need a short-lived toast to exercise Self::tick.

pub fn tick(&mut self)

Drop expired toasts. Call on each render tick so entries disappear at the advertised lifetime even when no key / bus events arrive.

pub fn visible(&self) -> &[Toast]

Borrow the list of currently-visible toasts, oldest first.

pub const fn visible_count(&self) -> usize

Number of currently-visible toasts.

pub const fn is_empty(&self) -> bool

true when no toasts are currently visible.

Trait Implementations

impl Debug for ToastQueue

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

Formats the value using the given formatter.

impl Default for ToastQueue

fn default() -> Self

Returns the “default value” for a type.