/**
 * GestureRouter — Central arbiter for pointer-based gesture conflicts.
 *
 * When multiple gesture controllers (drag, range-select, swipe) are active on
 * the same or overlapping elements, the router ensures only one "wins" per
 * pointer sequence (pointerdown → pointermove → pointerup).
 *
 * Controllers register as participants. On pointerdown, the router queries
 * participants in priority order. The first to return 'claim' wins; others
 * are told to stand down.
 */
export interface GestureParticipant {
    /** Unique identifier for this participant instance. */
    readonly id: string;
    /** Lower number = higher priority. Drag=10, RangeSelect=20, Swipe=30. */
    readonly priority: number;
    /** The element this participant manages. */
    readonly host: HTMLElement;
    /**
     * Called by the router on pointerdown. Return 'claim' to own the gesture
     * or 'pass' to decline.
     */
    onGestureStart(e: PointerEvent): 'claim' | 'pass';
    /** Called when another participant claims the gesture. */
    onGestureCancel?(): void;
}
export declare class GestureRouter {
    #private;
    register(participant: GestureParticipant): void;
    unregister(participant: GestureParticipant): void;
    /** Release the current claim (e.g. on pointerup). */
    release(): void;
    /** Get the currently active (claiming) participant, if any. */
    get activeParticipant(): GestureParticipant | null;
}
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