import { OverlayRef } from '@angular/cdk/overlay';
import { Observable } from 'rxjs';
import { Location } from '@angular/common';
import { DialogPosition } from './grit-overlay-config';
import { GritOverlayContainer } from './grit-overlay-container';
export declare class GritOverlayRef<T, R = any> {
    private _overlayRef;
    _containerInstance: GritOverlayContainer;
    readonly id: string;
    componentInstance: T;
    disableClose: boolean | undefined;
    private readonly _afterOpened;
    private readonly _afterClosed;
    private readonly _beforeClosed;
    private _result;
    private _closeFallbackTimeout;
    constructor(_overlayRef: OverlayRef, _containerInstance: GritOverlayContainer, _location?: Location, id?: string);
    close(dialogResult?: R): void;
    /**
     * Gets an observable that is notified when the dialog is finished opening.
     */
    afterOpened(): Observable<R | void>;
    /**
     * Gets an observable that is notified when the dialog is finished closing.
     */
    afterClosed(): Observable<R | undefined>;
    /**
     * Gets an observable that is notified when the dialog has started closing.
     */
    beforeClosed(): Observable<R | undefined>;
    /**
     * Gets an observable that emits when the overlay's backdrop has been clicked.
     */
    backdropClick(): Observable<MouseEvent>;
    /**
     * Gets an observable that emits when keydown events are targeted on the overlay.
     */
    keydownEvents(): Observable<KeyboardEvent>;
    updatePosition(position?: DialogPosition): this;
    updateSize(width?: string, height?: string): this;
    addPanelClass(classes: string | string[]): this;
    removePanelClass(classes: string | string[]): this;
    afterOpen(): Observable<R | void>;
    beforeClose(): Observable<R | undefined>;
    private _getPositionStrategy;
}