import { ElementRef, EventEmitter, OnDestroy, OnInit } from '@angular/core';
import { Overlay, OverlayPositionBuilder, OverlayRef } from '@angular/cdk/overlay';
import { TooltipContainerComponent } from './tooltip-container.component';
export declare class TooltipDirective implements OnInit, OnDestroy {
    private overlay;
    private overlayPositionBuilder;
    private elementRef;
    /** Content of the tooltip */
    content: string;
    /** Position of the tooltip relative to the origin */
    position: string;
    /** The delay before showing the tooltip */
    showDelay: number;
    /** The delay before hiding the tooltip */
    hideDelay: number;
    /** Whether the tooltip is disabled */
    disabled: boolean;
    /** Emits when the tooltip is done showing */
    shown: EventEmitter<void>;
    /** Emits when the tooltip is done hiding */
    hidden: EventEmitter<void>;
    /** Subject that notifies when the directive is destroyed */
    private destroyed$;
    /** Reference to the tooltip overlay */
    private overlayRef;
    /** The component portal into which the tooltip will be loaded. */
    private componentPortal;
    /** Reference to the tooltip overlay */
    private componentInstance;
    /** Connected tooltip position relative to the origin */
    private connectedPosition;
    /** Timeout id for the show delay */
    private showTimeout;
    /** Timeout id for the hide delay */
    private hideTimeout;
    constructor(overlay: Overlay, overlayPositionBuilder: OverlayPositionBuilder, elementRef: ElementRef);
    onMouseEnter(): void;
    onMouseLeave(): void;
    ngOnInit(): void;
    /**
     * Shows the tooltip.
     */
    show(delay?: number): void;
    /**
     * Hides the tooltip.
     */
    hide(delay?: number): void;
    /**
     * Whether the tooltip components is (busy) showing.
     */
    get isShowing(): boolean;
    /**
     * Attaches a new tooltip component.
     */
    attach(): TooltipContainerComponent;
    /**
     * Detaches the current tooltip component.
     */
    detach(): void;
    /**
     * Creates a new tooltip overlay.
     */
    createOverlay(): OverlayRef;
    /**
     * Invoked when the directive is destroyed.
     */
    ngOnDestroy(): void;
}