Struct PaneWebKeyboardController 

pub struct PaneWebKeyboardController { /* private fields */ }

A reusable web pane keyboard host: browser-safe keymap + canonical resolution

• focus tracking + a live roving-tabindex/ARIA tree.

Implementations

impl PaneWebKeyboardController

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 an aria-live region), coalesced and de-duplicated. Call once per render / live-region update.

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 browser reports a prefers-reduced-motion / prefers-contrast media-query change). Never affects focus/command semantics — presentation only.

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 accessibility_dataset(&self) -> [(&'static str, bool); 3]

Accessibility state as data-* attribute pairs for the workspace root.

The browser host stamps these on the pane container so CSS can apply high-contrast palettes, reduced-motion overrides, and enlarged hit targets via attribute selectors (e.g. [data-pane-high-contrast="true"] .pane-splitter { … }). This is the web counterpart to the terminal host’s themed focus ring + sizing: the same host-agnostic preference drives presentation on both platforms.

pub const fn focus(&self) -> PaneFocusContext

The current focus context.

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 interaction changes focus).

pub fn accessibility_tree(&self, tree: &PaneTree) -> Vec<PaneAriaNode>

The current roving-tabindex + ARIA tree for tree, reflecting focus.

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

Translate, resolve, and apply one browser key event. Structural commands mutate tree; focus/maximize commands update internal state. layout must be the solved layout of tree.

Trait Implementations

impl Clone for PaneWebKeyboardController

fn clone(&self) -> PaneWebKeyboardController

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PaneWebKeyboardController

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

Formats the value using the given formatter.