import { OnChanges, OnInit, SimpleChanges } from '@angular/core';
import { UntypedFormControl, NgControl } from '@angular/forms';
import { VudTooltipDirective } from '../tooltip';
import { VudErrorsComponent } from './error-messages';
import * as i0 from "@angular/core";
export declare class VudErrorTooltipDirective extends VudTooltipDirective implements OnInit, OnChanges {
    private readonly implicitNgControl;
    private readonly ngForm;
    private readonly controlContainer;
    private readonly _hasError;
    private inFocus;
    private formSubmitted;
    private contentInstance;
    private _errorMessages;
    private errorMessagesSub;
    readonly hasError: import("@angular/core").Signal<boolean>;
    get hasErrorClass(): boolean;
    readonly errorMessageId: string;
    errorMessages: VudErrorsComponent | string;
    explicitNgControl?: NgControl | UntypedFormControl;
    customErrors?: {
        [key: string]: any;
    } | null;
    constructor();
    ngOnInit(): void;
    ngDoCheck(): void;
    ngOnChanges(changes: SimpleChanges): void;
    onFocus(): void;
    onBlur(): void;
    hide(): void;
    private get ngControl();
    private get formContainer();
    private checkTooltipState;
    private createContentInstance;
    private updateErrorMessages;
    private getErrors;
    static ɵfac: i0.ɵɵFactoryDeclaration<VudErrorTooltipDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<VudErrorTooltipDirective, "[vudErrorTooltip]", ["vudErrorTooltip"], { "errorMessages": { "alias": "vudErrorTooltip"; "required": false; }; "explicitNgControl": { "alias": "vudErrorTooltipControl"; "required": false; }; "customErrors": { "alias": "vudErrorTooltipCustom"; "required": false; }; }, {}, never, never, true, never>;
}