import { ChangeDetectorRef, EventEmitter } from '@angular/core';
import { RadioComponent } from '../radio.component';
import { ControlValueAccessor } from '@angular/forms';
import { BooleanInput } from '@angular/cdk/coercion';
import { FieldControl } from '../../../field/src/field-control';
import { SapphireRadioChange } from './radio-base';
import { FieldComponent } from '../../../field/src/field.component';
import * as i0 from "@angular/core";
export declare abstract class RadioGroupBase implements ControlValueAccessor, FieldControl {
    private changeDetectorRef;
    _field: FieldComponent;
    uniqueId: string;
    orientation: 'vertical' | 'horizontal';
    /** Name of the radio button group. All radio buttons inside this group will use this name. */
    get name(): string;
    set name(value: string);
    private _name;
    /**
     * Event emitted when the group value changes.
     * Change events are only emitted when the value changes due to user interaction with
     * the radio button (the same behavior as `<input type-"radio">`).
     */
    readonly change: EventEmitter<SapphireRadioChange>;
    get value(): any;
    set value(newValue: any);
    private _value;
    /**
     * The currently selected radio button. If set to a new radio button, the radio group value
     * will be updated to match the new selected button. */
    get selected(): RadioComponent | null;
    set selected(selected: RadioComponent | null);
    private _selected;
    /** Whether the radio group is disabled */
    get disabled(): boolean;
    set disabled(value: BooleanInput);
    private _disabled;
    /** Whether the radio group is readonly */
    get readonly(): boolean;
    set readonly(value: BooleanInput);
    private _readonly;
    /** Whether the radio group is required */
    get required(): boolean;
    set required(value: BooleanInput);
    private _required;
    /** Child radio buttons. */
    private radios;
    onTouched: () => any;
    _controlValueAccessorChangeFn: (value: any) => void;
    constructor(changeDetectorRef: ChangeDetectorRef, _field: FieldComponent);
    _checkSelectedRadioButton(): void;
    /** Dispatch change event with current selection and group value. */
    _emitChangeEvent(): void;
    writeValue(value: any): void;
    registerOnChange(fn: (value: any) => void): void;
    registerOnTouched(fn: any): void;
    setDisabledState(disabled: boolean): void;
    isDisabled(): boolean;
    /** Updates the `selected` radio button from the internal _value state. */
    private updateSelectedRadioFromValue;
    private updateRadioButtonNames;
    static ɵfac: i0.ɵɵFactoryDeclaration<RadioGroupBase, [null, { optional: true; }]>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<RadioGroupBase, never, never, { "orientation": "orientation"; "name": "name"; "value": "value"; "selected": "selected"; "disabled": "disabled"; "readonly": "readonly"; "required": "required"; }, { "change": "change"; }, ["radios"], never, true, never>;
}