import { Overlay } from '@angular/cdk/overlay';
import { ElementRef, OnChanges, OnDestroy, OnInit, SimpleChanges, TemplateRef, ViewContainerRef } from '@angular/core';
import { KTooltipPosition, KTooltipType } from './tooltip.interface';
import * as i0 from "@angular/core";
export declare class KTooltipDirective implements OnInit, OnChanges, OnDestroy {
    private viewContainerRef;
    private elementRef;
    private overlay;
    message: string | TemplateRef<unknown> | undefined;
    position: KTooltipPosition;
    type: KTooltipType;
    trigger: 'hover' | 'click';
    openDelay: number;
    closeDelay: number;
    private overlayRef;
    private portal;
    private tooltipInstance;
    private onDestroy$;
    constructor(viewContainerRef: ViewContainerRef, elementRef: ElementRef<HTMLElement>, overlay: Overlay);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    private open;
    private close;
    private getPositionStrategy;
    private getOrigin;
    private getOverlayPosition;
    private invertPosition;
    private addOffset;
    private calcArrowPosition;
    private initHoverStrategy;
    private initClickStrategy;
    static ɵfac: i0.ɵɵFactoryDeclaration<KTooltipDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<KTooltipDirective, "[kTooltip]", never, { "message": { "alias": "kTooltip"; "required": false; }; "position": { "alias": "kTooltipPosition"; "required": false; }; "type": { "alias": "kTooltipType"; "required": false; }; "trigger": { "alias": "kTooltipTrigger"; "required": false; }; "openDelay": { "alias": "kTooltipOpenDelay"; "required": false; }; "closeDelay": { "alias": "kTooltipCloseDelay"; "required": false; }; }, {}, never, never, true, never>;
}