import { AnimationTriggerMetadata } from '@angular/animations';
import { AfterViewInit } from '@angular/core';
import { Observable } from 'rxjs';
import { DropdownRef } from '../dropdown-ref.class';
import * as i0 from "@angular/core";
export declare abstract class DropdownComponentBase<TData> implements AfterViewInit {
    protected readonly dropdownRef: DropdownRef<TData>;
    private readonly document;
    readonly data: TData;
    private readonly animationStateSubject$;
    readonly animationState$: Observable<boolean>;
    static readonly animations: AnimationTriggerMetadata[];
    constructor(dropdownRef: DropdownRef<TData>, document: Document);
    ngAfterViewInit(): void;
    private setAnimationState;
    private listenOutsideEventsForClose;
    static ɵfac: i0.ɵɵFactoryDeclaration<DropdownComponentBase<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DropdownComponentBase<any>, never, never, {}, {}, never, never, false>;
}