/**
 * Roving Tabindex 管理器
 * 实现 WAI-ARIA 的 Roving Tabindex 模式，用于管理复合组件内的焦点导航
 *
 * @example
 * const roving = new RovingTabindex({
 *   orientation: 'horizontal',
 *   loop: true,
 *   onActivate: (index) => this._selectItem(index),
 * });
 * roving.setItems(items);
 *
 * @see https://www.w3.org/WAI/ARIA/apg/practices/keyboard-interface/#kbd_roving_tabindex
 */
export declare class RovingTabindex {
    private _items;
    private _currentIndex;
    private _orientation;
    private _loop;
    private _onActivate?;
    private _onFocus?;
    constructor(options: {
        orientation?: "horizontal" | "vertical" | "both";
        loop?: boolean;
        onActivate?: (index: number) => void;
        onFocus?: (index: number) => void;
    });
    setItems(items: HTMLElement[]): void;
    handleKeydown(e: KeyboardEvent): void;
    getCurrentIndex(): number;
    focusItem(index: number): void;
    /** 更新当前索引和 tabindex，但不移动焦点 */
    setCurrentIndex(index: number): void;
    destroy(): void;
    private _moveToNext;
    private _moveToPrev;
    private _moveToFirst;
    private _moveToLast;
    private _updateTabindices;
}
//# sourceMappingURL=roving-tabindex.d.ts.map