import { OnInit, OnChanges, SimpleChanges, ElementRef } from "@angular/core";
import * as i0 from "@angular/core";
export declare enum SlickValidationTypes {
    None = 0,
    Error = 1,
    Warning = 2
}
export declare class SlickValidationIndicatorDirective implements OnInit, OnChanges {
    private el;
    isValid: boolean;
    validationType: SlickValidationTypes;
    private bgWarningStyle;
    private bgDangerStyle;
    private bgSuccessStyle;
    private originalBorderStyle;
    constructor(el: ElementRef);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    private setIndicator;
    static ɵfac: i0.ɵɵFactoryDeclaration<SlickValidationIndicatorDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<SlickValidationIndicatorDirective, "[slick-validation-indicator]", never, { "isValid": { "alias": "slick-validation-indicator"; "required": false; }; "validationType": { "alias": "slickValidationType"; "required": false; }; }, {}, never, never, false, never>;
}