import { DoCheck, ElementRef, OnChanges, Renderer2, SimpleChanges, OnInit } from '@angular/core';
import { ControlValueAccessor, NgControl } from '@angular/forms';
import { InputDirective } from '@eui/components/shared';
import { BooleanInput } from '@angular/cdk/coercion';
import * as i0 from "@angular/core";
/**
 * A radio input component that implements form control functionality and custom styling.
 * This component extends InputDirective and implements form control interfaces for seamless
 * integration with Angular's form controls.
 */
export declare class EuiInputRadioComponent extends InputDirective implements OnInit, DoCheck, OnChanges, ControlValueAccessor {
    /**
     * Gets or sets whether the radio input is in an invalid state.
     * This can be set manually or will be automatically set when used with form validation.
     *
     * @property {boolean} isInvalid - The invalid state of the radio input
     */
    get isInvalid(): boolean;
    set isInvalid(state: BooleanInput);
    protected _isInvalid: boolean;
    /**
     * Gets the CSS classes for the radio input component.
     * Combines base classes with invalid state modifier if applicable.
     *
     * @returns {string} Space-separated list of CSS classes
     */
    get class(): string;
    protected type: string;
    /**
     * Gets or sets the default checked state of the radio input.
     * This is different from the current checked state and represents the initial value.
     *
     * @property {any} defaultChecked - The default checked state
     */
    get defaultChecked(): any;
    set defaultChecked(value: BooleanInput);
    protected _defaultChecked: boolean;
    /**
     * Gets whether the radio input is currently selected.
     *
     * @returns {boolean} True if the radio input is selected, false otherwise
     */
    get selected(): boolean;
    /**
     * Gets or sets the value of the radio input.
     * The value can be of any type and will be used when the radio is selected in a form group.
     *
     * @property {any} value - The value associated with this radio input
     */
    get value(): any;
    set value(value: any);
    private _value;
    protected ngControl: NgControl;
    protected _elementRef: ElementRef<HTMLInputElement>;
    protected _renderer: Renderer2;
    constructor();
    /**
     * Initializes the component.
     * Sets up form control validation status subscription and handles initial state.
     */
    ngOnInit(): void;
    /**
     * Performs change detection and updates invalid state based on form control status.
     */
    ngDoCheck(): void;
    /**
     * Handles changes to component inputs. Specifically, handles changes to
     * readonly and invalid states.
     *
     * @param {SimpleChanges} changes - Object containing changed properties
     */
    ngOnChanges(changes: SimpleChanges): void;
    /**
     * Implements ControlValueAccessor.writeValue.
     * Updates the checked state based on the form control value.
     *
     * @param {string} obj - The value to write
     */
    writeValue(obj: string): void;
    /**
     * Registers a callback function that is called when the control's value changes.
     *
     * @param {Function} fn - The callback function
     */
    registerOnChange(fn: any): void;
    /**
     * Registers a callback function that is called when the control is touched.
     *
     * @param {Function} fn - The callback function
     */
    registerOnTouched(fn: any): void;
    /**
     * Sets the disabled state of the radio input.
     *
     * @param {boolean} isDisabled - Whether the radio input should be disabled
     */
    setDisabledState?(isDisabled: boolean): void;
    /**
     * Handles change events on the radio input.
     * Updates the model value when the radio selection changes.
     *
     * @param {Event} event - The change event
     */
    protected onCheckedChanged(event: Event): void;
    /**
     * Handles space key press events. Prevents selection changes when the input
     * is readonly.
     *
     * @param {KeyboardEvent} event - The keyboard event
     */
    protected onSpacePressed(event: KeyboardEvent): void;
    /**
     * Sets the invalid state of the radio input.
     * Updates both the internal state and the visual appearance.
     *
     * @param {boolean} state - The invalid state to set
     */
    protected setInvalid(state: any): void;
    protected onChange: (_: any) => void;
    protected onTouched: (_: any) => void;
    static ɵfac: i0.ɵɵFactoryDeclaration<EuiInputRadioComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<EuiInputRadioComponent, "input[euiInputRadio]", never, { "isInvalid": { "alias": "isInvalid"; "required": false; }; "defaultChecked": { "alias": "checked"; "required": false; }; "value": { "alias": "value"; "required": false; }; }, {}, never, never, true, never>;
}
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