import { Injector, OnDestroy, ElementRef, TemplateRef, ComponentRef } from '@angular/core';
import { OverlayRef } from '@angular/cdk/overlay';
import { InjectionToken } from '@angular/core';
import { Overlay } from '@angular/cdk/overlay';
import { Observable } from 'rxjs';
import { OnInit } from '@angular/core';
import { Subject } from 'rxjs';
import { TooltipComponent } from './tooltip.component';
export declare const TOOLTIP_DATA: InjectionToken<{}>;
export declare class TooltipDirective implements OnInit, OnDestroy {
    private el;
    private overlay;
    private injector;
    _title: string;
    _offset: number;
    _delay: number;
    _show: boolean;
    _tooltip: OverlayRef;
    _template: TemplateRef<any>;
    _templateCompRef: ComponentRef<TooltipComponent>;
    _placement: 'top' | 'bottom' | 'left' | 'right';
    blur$: Observable<Event>;
    hover$: Observable<Event>;
    focus$: Observable<Event>;
    escape$: Observable<Event>;
    mousemove$: Observable<Event>;
    hoverOutSideTriggerAndTooltip$: Observable<Event>;
    openEvents$: Observable<Event>;
    closeEvents$: Observable<Event>;
    destroy$: Subject<{}>;
    tooltipClass: string;
    delay: string | number;
    show: string | boolean;
    title: string;
    offset: string | number;
    template: TemplateRef<any>;
    placement: 'top' | 'bottom' | 'left' | 'right';
    constructor(el: ElementRef, overlay: Overlay, injector: Injector);
    ngOnInit(): void;
    ngOnDestroy(): void;
    open(): void;
    close(): void;
    private getOffset;
    private getConfig;
    private getPosition;
    private createInjector;
    private attachListeners;
}