import { AfterContentInit, EventEmitter, ExistingProvider, OnDestroy, QueryList } from '@angular/core';
import { ControlValueAccessor } from '@angular/forms';
import { RadioButtonComponent } from '../radiobutton.component';
import * as i0 from "@angular/core";
export declare const RADIO_GROUP_CONTROL_VALUE_ACCESSOR: ExistingProvider;
export declare class RadioButtonGroupDirective<T = unknown> implements ControlValueAccessor, AfterContentInit, OnDestroy {
    private readonly _changeDetector;
    /** Define the current selected value within the group */
    set value(value: T);
    /** Return the currently selected value */
    get value(): T;
    /** Emit when the currently selected value changes */
    valueChange: EventEmitter<T>;
    /** Used to inform Angular forms that the component has been touched */
    onTouched: () => void;
    /** Used to inform Angular forms that the component value has changed */
    onChange: (value: any) => void;
    _radioButtons: QueryList<RadioButtonComponent>;
    /** Unsubscribe from all subscriptions on destroy */
    private readonly _onDestroy$;
    /** Internally store the current value */
    private _value;
    ngAfterContentInit(): void;
    ngOnDestroy(): void;
    /** Allow Angular forms for provide us with a callback for when the input value changes */
    registerOnChange(fn: (value: any) => void): void;
    /** Allow Angular forms for provide us with a callback for when the touched state changes */
    registerOnTouched(fn: () => void): void;
    /** Allow Angular forms to give us the current value */
    writeValue(value: any): void;
    /** Allow Angular forms to disable the component */
    setDisabledState(isDisabled: boolean): void;
    /** Emit the currently selected value */
    emitChange(value: T): void;
    /** Determine and set the correct internal tabindex */
    determineAndSetInternalTabIndex(): void;
    /** Inform all child radio buttons of the latest value */
    private updateSelectedRadioButton;
    static ɵfac: i0.ɵɵFactoryDeclaration<RadioButtonGroupDirective<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<RadioButtonGroupDirective<any>, "ux-radio-button-group, [uxRadioButtonGroup]", never, { "value": { "alias": "value"; "required": false; }; }, { "valueChange": "valueChange"; }, ["_radioButtons"], never, false, never>;
}