import * as i0 from "@angular/core";
export declare class VlSpinnerService {
    private document;
    private context;
    private activeCounter;
    private spinnerNode;
    private MAX_DELAY;
    private MAX_TIMEOUT;
    constructor(document: Document);
    setContext(context: Node): void;
    show(delay?: number, timeout?: number): void;
    hide(delay?: number, force?: boolean): void;
    isActive(): boolean;
    private appendSpinner;
    private removeSpinner;
    private _initSpinner;
    static ɵfac: i0.ɵɵFactoryDeclaration<VlSpinnerService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<VlSpinnerService>;
}