import { ComponentRef, ElementRef, NgZone, OnDestroy, OnInit, TemplateRef } from '@angular/core';
import { Subject } from 'rxjs';
import { SingTooltipPosition } from './models/tooltip-position.type';
import { TooltipService } from './services/tooltip.service';
import { TooltipContainerComponent } from './tooltip-container/tooltip-container.component';
import * as i0 from "@angular/core";
export declare class TooltipDirective implements OnInit, OnDestroy {
    private elementRef;
    private tooltipService;
    private ngZone;
    tooltip: TemplateRef<any>;
    tooltipContext: Record<string, any> | null;
    showDelay: number;
    hideDelay: number;
    position: SingTooltipPosition;
    showTriggerEventName: string | null;
    hideTriggerEventName: string | null;
    automationId: string;
    offset: number;
    disable: boolean;
    closeOnEscape: boolean;
    closeOnClickOutside: boolean;
    tooltipClass: string;
    keepOpenOnTemplateHover: boolean;
    private hostElementVisible;
    private itWasShow;
    private killShowTimeout;
    private killHideTimeout;
    private observer;
    readonly ngUnSubscribe: Subject<void>;
    readonly scrollEvent$: import("rxjs").Observable<Event>;
    /**
     * check if tooltip is visible.
     */
    get isTooltipVisible(): boolean;
    constructor(elementRef: ElementRef, tooltipService: TooltipService, ngZone: NgZone);
    ngOnInit(): void;
    ngOnDestroy(): void;
    /**
     * show tooltip
     */
    show(): void;
    /**
     * hide tooltip
     */
    hide(): void;
    /**
     * toggle between show and hide tooltip
     */
    toggle(): void;
    /**
     * start listening to events in order to show and hide tooltip.
     * in order to prevent listening -> init the inputs as null.
     * For example:
     * [singTooltipShowTriggerEventName]="null"
     * [singTooltipHideTriggerEventName]="null"
     */
    private initListenShowAndHideEvents;
    /**
     * subscribe to tooltip component events if needed
     */
    attachEventListensAfterTooltipIsOpen(component: ComponentRef<TooltipContainerComponent>): void;
    /**
     * listen to scroll event.
     * we have some scenario we need to handle when tooltip is displayed.
     *
     * Step 1: Hide tooltip in case it's visible.
     * Step 2: reposition tooltip if the directive host element is still in hover mode
     *         or the tooltip was show will scroll and the showTriggerEventName is different from 'mouseenter'
     *
     * NOTE: the scrollEvent$ includes the unsubscribe in the declaration.
     */
    private initListenScrollEvent;
    /**
     * check if the directive host element is currently hovered.
     */
    private isDirectiveHostElementHasHoverAttribute;
    /**
     * check the given is valid template ref
     */
    private isValidTemplateRef;
    /**
     * listen to host element to check if it's visible in the viewport.
     * The "hostElementVisible" flag helps us avoid unnecessary calculations for the tooltip visibility
     * when the host element is outside of the viewport
     */
    private intersectionObserverOnHostElement;
    /**
     * check if need to start close side-nav.
     * when user clicks on escape
     */
    escapeClicked(): void;
    handleOutsideClick(event: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TooltipDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TooltipDirective, "[singTooltip]", ["singTooltip"], { "tooltip": "singTooltip"; "tooltipContext": "singTooltipContext"; "showDelay": "singTooltipShowDelay"; "hideDelay": "singTooltipHideDelay"; "position": "singTooltipPosition"; "showTriggerEventName": "singTooltipShowTriggerEventName"; "hideTriggerEventName": "singTooltipHideTriggerEventName"; "automationId": "singTooltipAutomationId"; "offset": "singTooltipOffset"; "disable": "singTooltipDisabled"; "closeOnEscape": "singTooltipCloseOnEscape"; "closeOnClickOutside": "singTooltipCloseOnClickOutside"; "tooltipClass": "singTooltipClass"; "keepOpenOnTemplateHover": "singTooltipKeepOpenOnTemplateHover"; }, {}, never, never, false, never>;
}
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