import { InjectionToken } from '@angular/core';
import { Observable } from 'rxjs';
import { NgControl } from '@angular/forms';
export interface FormControlHost {
    readonly input?: FormControlInput;
    readonly pending: boolean;
    readonly invalid: boolean;
    readonly valid: boolean;
    readonly touched: boolean;
    readonly untouched: boolean;
    readonly submitted: boolean;
}
export interface FormControlInput<T = any> {
    readonly stateChanged: Observable<void>;
    readonly controlType: string;
    readonly elementId: string;
    readonly isDisabled: boolean;
    readonly isFocused: boolean;
    readonly hasError: boolean;
    readonly ngControl?: NgControl;
    readonly value: T;
    onLabelClick(event: Event): void;
}
export interface FormControlAgentInput<T = any> {
    readonly controlType: string;
    readonly elementId: string;
    readonly isDisabled: boolean;
    readonly isFocused: boolean;
    readonly ngControl?: NgControl;
    readonly value: T;
}
export declare type FormControlErrorStateAgent = (host?: FormControlHost, input?: FormControlAgentInput) => (boolean);
export declare const FORM_CONTROL_HOST: InjectionToken<FormControlHost>;
export declare const FORM_CONTROL_ERROR_STATE_AGENT: InjectionToken<FormControlErrorStateAgent>;
export declare const FORM_CONTROL_INPUT: InjectionToken<FormControlInput<any>>;