Struct PaneKeyboardController 

pub struct PaneKeyboardController { /* private fields */ }

A reusable terminal pane keyboard host: translates keys to commands, resolves them against a live tree, applies structural operations, and tracks focus + maximize state. Hosts own the PaneTree; this owns the focus state and a monotonic operation counter.

Implementations

impl PaneKeyboardController

pub fn new(active: Option<PaneId>) -> Self

Create a controller focused on active (or unfocused if None).

pub fn take_announcement(&mut self) -> Option<PaneAnnouncement>

Take the pending accessibility announcement (for a status line / screen reader), coalesced and de-duplicated. Call once per render.

pub fn pending_announcement(&self) -> Option<&PaneAnnouncement>

Peek the pending accessibility announcement without consuming it.

pub const fn with_acceleration( self, acceleration: PaneCommandAcceleration, ) -> Self

Override the resize acceleration policy.

pub const fn with_preferences( self, preferences: PaneAccessibilityPreferences, ) -> Self

Set the accessibility preferences (reduced-motion / high-contrast / large-target) at construction time (bd-21pbi.5).

pub const fn set_preferences( &mut self, preferences: PaneAccessibilityPreferences, )

Update the accessibility preferences at runtime (e.g. when the user toggles a mode). Never affects focus/command semantics — only the presentation helpers below.

pub const fn preferences(&self) -> PaneAccessibilityPreferences

The active accessibility preferences.

pub fn affordance_motion(&self) -> PaneAffordanceMotion

The affordance micro-animation policy implied by the current preferences (motion is stepped under reduced-motion).

pub fn focus_ring(&self, theme: &ResolvedTheme) -> PaneFocusRing

Build a focus ring for the active pane from theme, honoring the high-contrast preference. The ring color is contrast-clamped against the pane surface (AAA when high-contrast is on, AA otherwise).

pub const fn focus(&self) -> PaneFocusContext

The current focus context (active + maximized pane).

pub const fn active(&self) -> Option<PaneId>

The currently active (focused) pane.

pub const fn maximized(&self) -> Option<PaneId>

The currently maximized pane, if any.

pub const fn set_active(&mut self, active: Option<PaneId>)

Set the active pane (e.g. when a pointer click changes focus).

pub fn handle_key( &mut self, key: &KeyEvent, tree: &mut PaneTree, layout: &PaneLayout, ) -> PaneKeyOutcome

Translate, resolve, and apply one key event. Structural commands mutate tree; focus/maximize commands update internal state. The layout must be the solved layout of tree (used for spatial focus + move).

Trait Implementations

impl Clone for PaneKeyboardController

fn clone(&self) -> PaneKeyboardController

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PaneKeyboardController

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

Formats the value using the given formatter.