export interface CalloutCollisionTransformProps {
    container: string;
    target: string;
    absolute?: boolean;
}
/**
 * This class is responsible for Dialog/Container element transformation to avoid collision/overlap between Callout/Dropdown Menu and target element.
 * In example when multi select dropdown is used inside dialog with actions,
 *  then class will apply transformation dialog to make sure that dialog actions and dropdown menu is visible.
 */
export declare class CalloutCollisionTransform {
    private readonly props;
    private readonly source;
    private readonly callout;
    private placeholder?;
    private originalStyle;
    /**
     * Initializes class with options.
     *
     * @param source Source element.
     * @param callout Dropdown menu/callout element.
     * @param props Transformation properties.
     */
    constructor(source: React.RefObject<HTMLElement>, callout: React.RefObject<HTMLElement>, props?: CalloutCollisionTransformProps);
    /**
     * Method creates placeholder element with given size.
     *
     * @param size Size of placeholder.
     * @returns HTML element for placeholder.
     */
    private createPlaceholder;
    /**
     * Method returns DOM elements and rectangles of associated elements(container, target, callout).
     *
     * @returns DOM elements and rectangles of associated elements.
     */
    private getElements;
    /**
     * Method calculates callout overlap with target and applies transformation to make target visible.
     */
    applyTransformation(): void;
    /**
     * Method resets current applied transformation.
     */
    resetTransformation(): void;
    /**
     * Method prevents callout dismiss/close if focus/click on target elements.
     *
     * @param event Triggered event to check.
     * @returns Returns true if callout should not be closed.
     */
    preventDismissOnEvent(event: Event | React.FocusEvent<Element> | React.KeyboardEvent<Element> | React.MouseEvent<Element, MouseEvent>): boolean;
}
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