import { ElementRef } from '@angular/core';
import { SkyAppWindowRef } from '@skyux/core';
import * as i0 from "@angular/core";
/**
 * @internal
 */
export declare class SkyModalAdapterService {
    #private;
    private static readonly MODAL_BODY_FULL_CLASS;
    private static readonly MODAL_BODY_CLASS;
    constructor(windowRef: SkyAppWindowRef);
    toggleFullPageModalClass(isAddFull: boolean): void;
    setPageScroll(isAdd: boolean): void;
    getModalOpener(): HTMLElement;
    scrollContentToTop(element: ElementRef): void;
    /**
     * Hides siblings of modal-host from screen readers
     * @param hostElRef reference to modal-host element
     */
    hideHostSiblingsFromScreenReaders(hostElRef: ElementRef): void;
    focusFirstElement(modalEl: ElementRef): void;
    /**
     * Restores modal-host siblings to screen reader status prior to modals being opened
     */
    unhideOrRestoreHostSiblingsFromScreenReaders(): void;
    hidePreviousModalFromScreenReaders(topModal: ElementRef): void;
    unhidePreviousModalFromScreenReaders(topModal: ElementRef): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SkyModalAdapterService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SkyModalAdapterService>;
}