import { ElementRects, Placement } from '@floating-ui/react';
import { Align, ElementPosition, ExtendedPlacement, Justify, TransformAlign } from '../Popover/Popover.types';
/**
 * Returns the width and height as well as the top, bottom, left, and right positions of an element
 * within a given container. If `scrollContainer` is undefined, the position is relative to the
 * document.
 */
export declare function getElementDocumentPosition(element: HTMLElement | null, scrollContainer?: HTMLElement | null, isReference?: boolean): ElementPosition;
/**
 * Function to convert `align` and `justify` props to a desired Floating UI
 * {@link https://floating-ui.com/docs/useFloating#placement placement}
 * value to provide in {@link https://floating-ui.com/docs/useFloating#placement useFloating hook}.
 * Floating UI supports 12 placements out-of-the-box. In addition to these placements, we override
 * the `align` prop when it is set to 'center-horizontal' or 'center-vertical' to
 * {@link https://floating-ui.com/docs/offset#creating-custom-placements create custom placements}
 */
export declare const getFloatingPlacement: (align: Align, justify: Justify) => Placement;
/**
 * Function to derive window-safe align and justify values that are used when rendering
 * children. The placement calculated by Floating UI does not explicitly specify the justify
 * value when it is 'middle'
 */
export declare const getWindowSafePlacementValues: (placement: Placement) => {
    align: Align;
    justify: Justify;
};
/**
 * Function to extend the {@link https://floating-ui.com/docs/usefloating#placement-1 final placement}
 * calculated by the `useFloating` hook and provide the align value used for transform styling.
 *
 * Floating UI supports 12 placements out-of-the-box. We extend these placements when the `align` prop is
 * set to 'center-horizontal' or 'center-vertical'
 */
export declare const getExtendedPlacementValues: ({ placement, align: alignProp, }: {
    placement: Placement;
    align: Align;
}) => {
    placement: ExtendedPlacement;
    transformAlign: TransformAlign;
};
/**
 * This function calculates the offset value of the popover element based on the `align` prop
 * If the `align` prop is 'center-horizontal' or 'center-vertical', an offset value is calculated
 * to position the popover element on top of the reference element. Otherwise, the `spacing` prop
 * is used to calculate the offset value
 */
export declare const getOffsetValue: (align: Align, spacing: number, rects: ElementRects) => number;
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