import { InjectionToken, OnDestroy, Injector, TemplateRef } from '@angular/core';
import { Overlay, OverlayContainer, ScrollStrategy, ComponentType } from '@angular/cdk/overlay';
import { Observable, Subject, BehaviorSubject } from 'rxjs';
import { GritOverlayConfig, OverlayType } from './grit-overlay-config';
import { GritOverlayRef } from './grit-overlay-ref';
import { Location } from '@angular/common';
import { BreakpointObserver, MediaMatcher } from '@angular/cdk/layout';
import * as i0 from "@angular/core";
export declare const GRIT_OVERLAY_DATA: InjectionToken<any>;
export declare const GRIT_OVERLAY_DEFAULT_OPTIONS: InjectionToken<GritOverlayConfig<any>>;
/** Injection token that determines the scroll handling while the dialog is open. */
export declare const GRIT_OVERLAY_SCROLL_STRATEGY: InjectionToken<() => ScrollStrategy>;
export declare function GRIT_OVERLAY_SCROLL_STRATEGY_FACTORY(overlay: Overlay): () => ScrollStrategy;
export declare function GRIT_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay: Overlay): () => ScrollStrategy;
export declare const GRIT_OVERLAY_SCROLL_STRATEGY_PROVIDER: {
    provide: InjectionToken<() => ScrollStrategy>;
    deps: (typeof Overlay)[];
    useFactory: typeof GRIT_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY;
};
export declare class GritOverlay implements OnDestroy {
    private _overlay;
    private _injector;
    private _location;
    private _defaultOptions;
    private _parentOverlay;
    private _overlayContainer;
    _overlayType: BehaviorSubject<OverlayType>;
    private _openOverlaysAtThisLevel;
    private readonly _afterAllClosedAtThisLevel;
    private readonly _afterOpenedAtThisLevel;
    private _ariaHiddenElements;
    private _scrollStrategy;
    /** Keeps track of the currently-open dialogs. */
    get openOverlays(): GritOverlayRef<any>[];
    get afterOpened(): Subject<GritOverlayRef<any>>;
    get afterOpen(): Subject<GritOverlayRef<any>>;
    get _afterAllClosed(): Subject<void>;
    readonly afterAllClosed: Observable<void>;
    _isTablet: boolean;
    _overlayBoundingBox: any;
    constructor(_overlay: Overlay, _injector: Injector, _location: Location, _defaultOptions: GritOverlayConfig, scrollStrategy: any, _parentOverlay: GritOverlay, _overlayContainer: OverlayContainer, breakpointObserver: BreakpointObserver, mediaMatcher: MediaMatcher);
    open<T, D = any, R = any>(componentOrTemplateRef: ComponentType<T> | TemplateRef<T>, config?: GritOverlayConfig<D>): GritOverlayRef<T, R>;
    getCurrentOverlayType(): Observable<OverlayType>;
    updateOverlayType(type: any): void;
    closeAll(): void;
    getDialogById(id: string): GritOverlayRef<any> | undefined;
    ngOnDestroy(): void;
    private _attachDialogContent;
    private _createInjector;
    private _attachDialogContainer;
    private _createOverlay;
    private _createModalPosition;
    private _createBottomSheetPosition;
    private _createRightSheetPosition;
    private _getOverlayConfig;
    private _getBackdrop;
    private _removeOpenDialog;
    private _closeDialogs;
    private _hideNonDialogContentFromAssistiveTechnology;
    static ɵfac: i0.ɵɵFactoryDef<GritOverlay, [null, null, { optional: true; }, { optional: true; }, null, { optional: true; skipSelf: true; }, null, null, null]>;
    static ɵprov: i0.ɵɵInjectableDef<GritOverlay>;
}