/** Checks if element is blocked from scrolling */
export declare function isScrollLocked(target: Element): boolean;
/** Checks vertical scroll based on content height */
export declare function hasVerticalScroll(target?: Element): boolean;
/** Checks horizontal scroll based on content height */
export declare function hasHorizontalScroll(target?: Element): boolean;
export type ScrollLockOptions = {
    /**
     * Option to lock scroll:
     * - 'none' | null | undefined - totally locks scroll with `overflow: hidden` option
     * - 'native' (applicable for page only) - left page scroll visible but inactive
     * - 'pseudo' (applicable for page only) - uses padding offset to make page static on lock
     * - 'background' (applicable for page only) - uses padding offset to make page static on lock and uses small pseudo-scrollbar z-index
     */
    strategy?: 'none' | 'native' | 'pseudo' | 'background' | null;
    /** Locks all scrollable parents */
    recursive?: boolean;
    /** Initiator (requester) object to limit lock operations by the query */
    initiator?: any;
};
/**
 * Disables a scroll on the element.
 * @param target - scrollable element which will be blocked from scrolling
 * @param options - additional options to lock scroll
 * */
export declare function lockScroll(target?: Element, options?: ScrollLockOptions): void;
/**
 * Enables a scroll on the target element in case it was requested with given initiator.
 * @param target - scrollable element
 * @param options - additional options to unlock scroll
 */
export declare function unlockScroll(target?: Element, options?: ScrollLockOptions): void;
export interface ElementScrollOffset {
    element: Element;
    top: number;
    left: number;
}
export declare function isOffsetChanged(offsets: ElementScrollOffset[]): boolean;
export declare function getParentScrollOffsets($el: Element, $topContainer: Element): ElementScrollOffset[];