/**
 * The _Popover_ is a nested dialog which is used for e.g. autocompletions.
 *
 * _Popover_ elements are anchored to the parent [`<uwc-input>`](../uwc-input.ts)
 *
 * They can be added like this:
 *
 * @example
 *
 * ```html
 * <uwc-input>
 *   <dialog popover>
 *     <div>Some custom popover content</div>
 *   </dialog>
 * </uwc-input>
 * ```
 *
 * @module
 */
/**
 * marks all elements in the associated popover dialog with `[aria-selected]` if their value occurs in the associated values
 *
 * @internal
 */
export declare function markSelected(input: UwcInputElement): void;
/**
 * given an input listen to changes of aria-selected attributes on contained ValueElements
 *
 * @internal
 */
export declare function setup(input: UwcInputElement, abortController: {
    signal: AbortSignal;
}): void;
/**
 * get the associated dialog for a given input
 *
 * @internal
 */
export declare function getDialog(input: UwcInputElement, { createIfAbsent, }?: {
    /**
     * create a dialog if none is found
     */
    createIfAbsent?: boolean;
}): HTMLDialogElement | undefined;
/**
 * get the currently highlighted element
 *
 * @internal
 */
export declare function getHighlighted(input: UwcInputElement): HTMLElement | null | undefined;
/**
 * remove the highlighting
 *
 * @internal
 */
export declare function clearHighlight(input: UwcInputElement): void;
/**
 * highlight the given element
 *
 * @internal
 */
export declare function highlight(input: UwcInputElement, element: Element | undefined): void;
/**
 * get an element by a relative offset from the currently highlighted element, if any
 *
 * @internal
 */
export declare function getRelativeFromCurrent(input: UwcInputElement, offset: number): Element | undefined;
/**
 * highlight the next element
 *
 * @internal
 */
export declare function highlightNext(input: UwcInputElement): void;
/**
 * highlight the previous element
 *
 * @internal
 */
export declare function highlightPrevious(input: UwcInputElement): void;
export declare function show(input: UwcInputElement): void;
export declare function hide(input: UwcInputElement): void;