import type { ComputedRef, ShallowRef } from 'vue';
import type { Coord } from '../types/geometry.js';
export type PlacementVertical = 'top' | 'bottom' | 'center' | 'auto';
export type PlacementHorizontal = 'left' | 'center' | 'right' | 'auto-side';
type UseStickyToolbarOptions = {
    getPlacementY?: () => PlacementVertical;
    getPlacementX?: () => PlacementHorizontal;
    shouldUpdate?: () => boolean;
    getWidth?: () => number;
    getHeight?: () => number;
    getMargin?: () => number;
    getAnchorElement?: () => HTMLElement | null;
    getAnchorCoordinates?: () => Coord | null;
    getCaretWidth?: () => number;
    allowHorizontalOverflow?: boolean;
    isFullscreen?: () => boolean;
};
type UseStickyToolbar = {
    shouldRender: ComputedRef<boolean>;
    placementY: ComputedRef<'top' | 'bottom' | 'center'>;
    placementX: ComputedRef<'left' | 'center' | 'right'>;
    caretX: ComputedRef<number>;
};
export declare function useStickyToolbar(el: Readonly<ShallowRef<HTMLElement | null>>, options?: UseStickyToolbarOptions): UseStickyToolbar;
export {};