import { Overlay, ScrollDispatcher, ViewportRuler } from '@angular/cdk/overlay';
import { AfterViewInit, OnDestroy, TemplateRef, ViewContainerRef } from '@angular/core';
import { ShDropdownContentDirective } from './sh-dropdown-content.directive';
import { ShDropdownTriggerDirective } from './sh-dropdown-trigger.directive';
import * as i0 from "@angular/core";
export declare class ShDropdownComponent implements AfterViewInit, OnDestroy {
    private overlay;
    private viewportRuler;
    private scrollDispatcher;
    private viewContainerRef;
    trigger: ShDropdownTriggerDirective;
    content: ShDropdownContentDirective;
    private overlayRef;
    private subscriptions;
    animationState: 'void' | 'visible';
    private isAnimating;
    animationWrapper: TemplateRef<any>;
    constructor(overlay: Overlay, viewportRuler: ViewportRuler, scrollDispatcher: ScrollDispatcher, viewContainerRef: ViewContainerRef);
    ngAfterViewInit(): void;
    private createOverlay;
    private getPositionStrategy;
    private getPositions;
    private setupListeners;
    private toggle;
    private open;
    private close;
    onAnimationDone(event: any): void;
    private updatePosition;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ShDropdownComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<ShDropdownComponent, "sh-dropdown", never, {}, {}, ["trigger", "content"], ["*"], false, never>;
}