/**
 * Shared WPS-style keyboard contract for Presentation slide thumbnails.
 *
 * Sorter view activates the selected slide (return to normal) on Enter, matching
 * the WPS slide-sorter contract. Arrow/Home/End move between slides;
 * Delete/Backspace remove the current slide.
 */
export declare function handlePresentationThumbnailKey(event: {
    key: string;
    preventDefault: () => void;
    stopPropagation: () => void;
}, options: {
    index: number;
    slideCount: number;
    onDelete: () => boolean;
    onNavigate: (index: number) => void;
    onActivate?: () => void;
}): boolean;