import type { KeymapEvent, KeymapHost, RegisteredLayer } from "../../types.js";
export declare function getFocusedTargetIfAvailable<TTarget extends object, TEvent extends KeymapEvent>(host: KeymapHost<TTarget, TEvent>): TTarget | null;
export declare function forEachActivationTarget<TTarget extends object, TEvent extends KeymapEvent>(host: KeymapHost<TTarget, TEvent>, focused: TTarget | null, visit: (target: TTarget, isFocusedTarget: boolean) => boolean | void): void;
export declare function getActivationPath<TTarget extends object, TEvent extends KeymapEvent>(host: KeymapHost<TTarget, TEvent>, focused: TTarget | null): Set<TTarget>;
export declare function getActiveLayersForFocused<TTarget extends object, TEvent extends KeymapEvent>(layers: readonly RegisteredLayer<TTarget, TEvent>[] | ReadonlySet<RegisteredLayer<TTarget, TEvent>>, host: KeymapHost<TTarget, TEvent>, focused: TTarget | null): readonly RegisteredLayer<TTarget, TEvent>[];
export declare function getSortedLayers<TTarget extends object, TEvent extends KeymapEvent>(layers: ReadonlySet<RegisteredLayer<TTarget, TEvent>>): RegisteredLayer<TTarget, TEvent>[];
export declare function isLayerActiveForFocused<TTarget extends object, TEvent extends KeymapEvent>(host: KeymapHost<TTarget, TEvent>, layer: RegisteredLayer<TTarget, TEvent>, focused: TTarget | null, activationPath?: ReadonlySet<TTarget>): boolean;