import { ApplicationRef, ComponentFactoryResolver, Injector, RendererFactory2 } from '@angular/core';
import { LuxModalConfig, LuxModalOptions } from './modal-config';
import { ModalRef } from './modal-ref';
import * as i0 from "@angular/core";
export declare class ModalStack {
    private _applicationRef;
    private _document;
    private _injector;
    private _rendererFactory;
    private modalConfig;
    private _activeWindowCmptHasChanged;
    private _modalRefs;
    private _windowCmpts;
    private _ariaHiddenValues;
    private _backdropAttributes;
    private _windowAttributes;
    constructor(_applicationRef: ApplicationRef, _document: any, _injector: Injector, _rendererFactory: RendererFactory2, modalConfig: LuxModalConfig);
    open(moduleCFR: ComponentFactoryResolver, content: any, options: LuxModalOptions): ModalRef;
    private _applyWindowOptions;
    private _applyBackgroundOptions;
    private _revertAriaHidden;
    private getContentRef;
    private createFromTemplateRef;
    private _attachBackdrop;
    private _attachWindowComponent;
    private _registerModalRef;
    private _registerWindowCmpt;
    private _setAriaHidden;
    static ɵfac: i0.ɵɵFactoryDeclaration<ModalStack, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ModalStack>;
}