import { AnimationEvent } from '@angular/animations';
import { BasePortalOutlet, CdkPortalOutlet, ComponentPortal, DomPortal, TemplatePortal } from '@angular/cdk/portal';
import { ChangeDetectorRef, ComponentRef, ElementRef, EmbeddedViewRef, NgZone, OnDestroy } from '@angular/core';
import { Observable, Subject } from 'rxjs';
import { SbbNotificationToastConfig } from './notification-toast-config';
export declare class SbbNotificationToastContainer extends BasePortalOutlet implements OnDestroy {
    private _ngZone;
    private _elementRef;
    private _changeDetectorRef;
    config: SbbNotificationToastConfig;
    private _destroyed;
    /** The portal outlet inside of this container into which the notification toast content will be loaded. */
    _portalOutlet: CdkPortalOutlet;
    /** Subject for notifying that the notification toast has exited from view. */
    readonly _onExit: Subject<void>;
    /** Subject for notifying that the notification toast has finished entering the view. */
    readonly _onEnter: Subject<void>;
    /** The state of the notification toast animations. */
    _animationState: string;
    /** ARIA role for the notification toast container. */
    _role: 'alert' | 'status' | null;
    get _svgIcon(): "kom:tick-small" | "kom:sign-exclamation-point-small" | "kom:circle-information-small";
    constructor(_ngZone: NgZone, _elementRef: ElementRef<HTMLElement>, _changeDetectorRef: ChangeDetectorRef, config: SbbNotificationToastConfig);
    /** Attach a component portal as content to this notification toast container. */
    attachComponentPortal<T>(portal: ComponentPortal<T>): ComponentRef<T>;
    /** Attach a template portal as content to this notification toast container. */
    attachTemplatePortal<C>(portal: TemplatePortal<C>): EmbeddedViewRef<C>;
    /**
     * Attaches a DOM portal to the notification toast container.
     * @deprecated To be turned into a method.
     * @breaking-change 10.0.0
     */
    attachDomPortal: (portal: DomPortal) => void;
    /** Handle end of animations, updating the state of the notification toast. */
    onAnimationEnd(event: AnimationEvent): void;
    /** Begin animation of notification toast entrance into view. */
    enter(): void;
    /** Begin animation of the notification toast exiting from view. */
    exit(): Observable<void>;
    /** Makes sure the exit callbacks have been invoked when the element is destroyed. */
    ngOnDestroy(): void;
    /**
     * Waits for the zone to settle before removing the element. Helps prevent
     * errors where we end up removing an element which is in the middle of an animation.
     */
    private _completeExit;
    /** Applies the various positioning and user-configured CSS classes to the notification toast. */
    private _applyNotificationClasses;
    /** Asserts that no content is already attached to the container. */
    private _assertNotAttached;
}