Struct TransitionHistory 

pub struct TransitionHistory<S: Clone> { /* private fields */ }

Fixed-capacity ring buffer of screen transitions.

When full, the oldest entry is evicted on each new record().

Example

use ftui_runtime::tick_strategy::TransitionHistory;

let mut history = TransitionHistory::with_capacity(100);
history.record("Dashboard".to_string(), "Messages".to_string(), 42);
assert_eq!(history.len(), 1);

Implementations

impl<S: Clone> TransitionHistory<S>

pub fn with_capacity(capacity: usize) -> Self

Create a history buffer with the given capacity.

A capacity of 0 is clamped to 1.

pub fn record(&mut self, from: S, to: S, tick_count: u64)

Record a new screen transition.

If the buffer is at capacity, the oldest entry is evicted.

pub fn recent(&self, n: usize) -> Vec<&TransitionEntry<S>>

Return the most recent n transitions (or fewer if less are stored).

Entries are ordered oldest-first.

pub fn last_n_screens(&self, n: usize) -> Vec<&S>

where S: PartialEq,

Return the last n distinct destination screens visited, most recent last.

pub fn len(&self) -> usize

Number of transitions currently stored.

pub fn is_empty(&self) -> bool

Whether the buffer is empty.

pub fn capacity(&self) -> usize

The configured capacity.

pub fn clear(&mut self)

Clear all stored transitions.

Trait Implementations

impl<S: Clone + Clone> Clone for TransitionHistory<S>

fn clone(&self) -> TransitionHistory<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: Debug + Clone> Debug for TransitionHistory<S>

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

Formats the value using the given formatter.

impl<S: Clone> Default for TransitionHistory<S>

fn default() -> Self

Returns the “default value” for a type.