import { OnChanges, SimpleChanges } from '@angular/core';
import { ValidationErrors } from '@angular/forms';
import { IErrorMessages } from '../../form-field.model';
import * as i0 from "@angular/core";
export declare class FormFieldHintComponent implements OnChanges {
    /**
     * A hint to display, helping the user when filling a form field.
     */
    help: string | undefined | null;
    /**
     * the ValidationErrors of a formControl
     */
    errors: ValidationErrors | undefined | null;
    /**
     * Activate the display of error messages (disable for example when formControl is pristine if you don't
     * want to display errors at initial state)
     */
    showErrors: boolean;
    /**
     * Display all errors or only the first error encountered (errors being sorted by key)
     */
    showAllErrors: boolean;
    /**
     * Provides default messages to display for the possible error keys when none is present
     * in the errors object. If a message (string) is provided for a given key, it
     * will be displayed rather than the message provided in errorMessages.
     */
    errorMessages: IErrorMessages | undefined | null;
    /**
     * Id for the hint message, can be used for accessibility aria-describedby attribute in parent component
     */
    set id(val: string | undefined);
    get id(): string | undefined;
    readonly autoId: string;
    private _id?;
    hint: string | undefined | null;
    constructor();
    ngOnChanges(changes: SimpleChanges): void;
    /**
     * Concat all error messages, either from input messages or from the value provided by validators
     */
    buildErrorMessage(errors?: ValidationErrors | null): string | undefined;
    refreshMessage(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<FormFieldHintComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<FormFieldHintComponent, "pa-form-field-hint", never, { "help": { "alias": "help"; "required": false; }; "errors": { "alias": "errors"; "required": false; }; "showErrors": { "alias": "showErrors"; "required": false; }; "showAllErrors": { "alias": "showAllErrors"; "required": false; }; "errorMessages": { "alias": "errorMessages"; "required": false; }; "id": { "alias": "id"; "required": false; }; }, {}, never, never, false, never>;
}