import { AfterViewInit, ElementRef, OnInit, QueryList } from '@angular/core';
import { AtLabel } from '../directives/label.directive';
import { AtSuffix } from '../directives/suffix.directive';
import { AtPrefix } from '../directives/prefix.directive';
import { AtSupport } from '../directives/support.directive';
export declare type FormFieldAppearance = 'standard' | 'outline';
export declare type FormFieldTheme = 'primary' | 'secondary' | 'tertiary' | 'magenta' | 'orange' | 'purple' | 'red' | 'teal' | 'yellow' | 'gray';
export declare class FormFieldComponent implements OnInit, AfterViewInit {
    private element;
    _labelChild: AtLabel;
    _prefixChildren: QueryList<AtPrefix>;
    _suffixChildren: QueryList<AtSuffix>;
    _supportChildren: QueryList<AtSupport>;
    appearance: FormFieldAppearance;
    _appearance: FormFieldAppearance;
    theme: FormFieldTheme;
    _theme: FormFieldTheme;
    type: string;
    constructor(element: ElementRef);
    ngOnInit(): void;
    ngAfterViewInit(): void;
    hasLabel(): boolean;
    onClick(event: Event): void;
    onFocusOut(event: Event): void;
    onChangeInput(event: Event): void;
    _onChangeInput: any;
    hasValue(element: any): void;
}