import { VirtualElement, PopoverOption } from './type';
export * from './type';
export default class PopoverInstance {
    private target;
    private popper;
    private option;
    private isDestroy;
    private listenerCb;
    constructor(target?: VirtualElement, popper?: HTMLElement, option?: PopoverOption);
    updateConfig(target?: VirtualElement, popper?: HTMLElement, option?: PopoverOption): void;
    forceUpdate(): void;
    destroy(): void;
    addEventListener(): void;
    private updatePopper;
    private updateArrow;
    private styleToString;
    private stringToStyle;
    private executeUpdate;
    private showRight;
    private showRightStart;
    private showRightEnd;
    private showLeft;
    private showLeftStart;
    private showLeftEnd;
    private showTop;
    private showTopStart;
    private showTopEnd;
    private showBottom;
    private showBottomStart;
    private showBottomEnd;
    private adjustBottom;
    private adjustTop;
    private adjustLeft;
    private adjustRight;
    private adjustOffset;
    private getDir;
}