import { ApplicationRef, EnvironmentInjector, Type } from '@angular/core';
import { ModalComponent } from './modal.component';
import { ModalResponse, Options } from './modal-options';
import * as i0 from "@angular/core";
export declare class ModalService {
    private appRef;
    private injector;
    private newModalComponent;
    private newComponent;
    /**
     * Internal use only.
     */
    options: Options | undefined;
    /**
     * Internal use only.
     */
    modalInstances: ModalComponent[];
    /**
     * Internal use only.
     */
    layerLevel: number;
    /**
     * Internal use only.
     */
    closedOnClickOrEscape: boolean;
    private isBrowser;
    private promiseContainer;
    constructor(appRef: ApplicationRef, injector: EnvironmentInjector, platformId: Object);
    /**
     * Opens a custom component within a modal.
     * @param componentToCreate The custom component to display within the modal.
     * @param options Additional options for configuring the modal appearance and animations.
     * @returns A Promise that will emit custom data on closing the modal.
     * ```
     * this.modalService.open(ModalContentComponent, {
     *   modal: {
     *     enter: 'enter-scale-down 0.1s ease-out',
     *     leave: 'fade-out 0.5s',
     *   },
     *   overlay: {
     *     leave: 'fade-out 0.3s',
     *   },
     *   data: {
     *     type: 'Angular modal library',
     *   },
     * })
     * .then((dataFromComponent) => {
     *    ...
     * });
     * ```
     */
    open<C>(componentToCreate: Type<C>, options?: Options): Promise<ModalResponse>;
    private openComponent;
    private instantiateProps;
    /**
     * Close the current modal.
     * @param data The optional data to emit on closing the modal (communication from modal to caller).
     */
    close(data?: unknown): any;
    /**
     * Close all modal instances.
     * Respective animations will be applied.
     */
    closeAll(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ModalService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ModalService>;
}