import { ElementRef, OnDestroy, TemplateRef, ViewContainerRef } from '@angular/core';
import * as i0 from "@angular/core";
export declare class TooltipDirective implements OnDestroy {
    private el;
    private vcr;
    libTooltip: TemplateRef<any>;
    tooltipPosition: 'top' | 'bottom' | 'left' | 'right';
    private tooltipElement;
    private viewRef;
    constructor(el: ElementRef, vcr: ViewContainerRef);
    private setupEventListeners;
    private adjustPositionForViewport;
    private positionTooltip;
    private showTooltip;
    private hideTooltip;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TooltipDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TooltipDirective, "[libTooltip]", never, { "libTooltip": { "alias": "libTooltip"; "required": false; }; "tooltipPosition": { "alias": "tooltipPosition"; "required": false; }; }, {}, never, never, true, never>;
}