import { ControlValueAccessor, FormGroup } from '@angular/forms';
import * as i0 from "@angular/core";
/** Possible radio button color variants */
export type RadioVariantProps = 'primary' | 'secondary' | 'tertiary' | 'accent' | 'success' | 'warning' | 'info' | 'error' | null | undefined;
/** Possible radio button size variants */
export type RadioSizeProps = 'xs' | 'sm' | 'md' | 'lg' | 'xl' | null | undefined;
/** Configuration object for radio button styling */
export type RadioProps = {
    variant?: RadioVariantProps;
    size?: RadioSizeProps;
};
/**
 * A customizable radio button component with form integration
 *
 * @remarks
 * Implements ControlValueAccessor for seamless Angular form integration.
 * Supports grouped radio buttons through name attribute binding.
 *
 * @example
 * ```html
 * <!-- Basic usage -->
 * <st-radio value="option1" [(selected)]="selectedOption"></st-radio>
 * ```
 *
 * @example
 * ```html
 * <!-- Grouped radio buttons with labels -->
 * <st-radio
 *   variant="success"
 *   size="lg"
 *   label="Option 1"
 *   value="opt1"
 *   name="options"
 *   [(selected)]="selectedOption"
 * ></st-radio>
 * <st-radio
 *   variant="success"
 *   size="lg"
 *   label="Option 2"
 *   value="opt2"
 *   name="options"
 *   [(selected)]="selectedOption"
 * ></st-radio>
 * ```
 */
export declare class RadioComponent implements ControlValueAccessor {
    /**
     * Radio button color variant
     * @defaultValue 'primary'
     */
    variant: import("@angular/core").InputSignal<RadioVariantProps>;
    /**
     * Radio button size variant
     * @defaultValue 'md'
     */
    size: import("@angular/core").InputSignal<RadioSizeProps>;
    /**
     * Label text displayed next to the radio button
     */
    label: import("@angular/core").InputSignal<string>;
    /**
     * Group name for radio button selection
     */
    name: import("@angular/core").InputSignal<string | null>;
    /**
     * The value associated with this radio button
     */
    value: import("@angular/core").InputSignal<any>;
    /**
     * Two-way bindable selected value for radio group
     */
    selected: import("@angular/core").ModelSignal<any>;
    /**
     * Parent form group for reactive forms
     */
    parentForm: import("@angular/core").InputSignal<FormGroup<any> | null>;
    /**
     * Form control name for reactive forms
     */
    formControlName: import("@angular/core").InputSignal<string>;
    /**
     * Event emitted when radio button is selected
     */
    valueUpdated: import("@angular/core").OutputEmitterRef<any>;
    /**
     * Stop event propagation for activation events
     * @defaultValue false
     */
    stopPropagation: import("@angular/core").InputSignal<boolean>;
    /**
     * Event emitted on click
     */
    clicked: import("@angular/core").OutputEmitterRef<MouseEvent>;
    /**
     * Event emitted on Enter keydown
     */
    keyDownEnter: import("@angular/core").OutputEmitterRef<KeyboardEvent>;
    /**
     * Event emitted on Space keydown
     */
    keyDownSpace: import("@angular/core").OutputEmitterRef<KeyboardEvent>;
    /**
     * Event emitted on activation (click or keyboard)
     */
    triggered: import("@angular/core").OutputEmitterRef<void>;
    private onControlChange;
    private onControlTouch;
    /**
     * Whether the radio button is disabled
     * @defaultValue false
     */
    disabled: import("@angular/core").ModelSignal<boolean>;
    /**
     * @internal
     * Computed class string for the radio button
     */
    componentClass: import("@angular/core").Signal<string>;
    writeValue(obj: any): void;
    registerOnChange(fn: any): void;
    registerOnTouched(fn: any): void;
    setDisabledState(isDisabled: boolean): void;
    /**
     * @internal
     * Handles radio button selection changes
     */
    handleChange(): void;
    /**
     * @internal
     * Handles blur event
     */
    handleBlur(): void;
    /**
     * @internal
     * Handles click activation
     */
    handleClick(event: MouseEvent): void;
    /**
     * @internal
     * Handles Enter keydown activation
     */
    handleKeyDownEnter(event: Event): void;
    /**
     * @internal
     * Handles Space keydown activation
     */
    handleKeyDownSpace(event: Event): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<RadioComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<RadioComponent, "st-radio", never, { "variant": { "alias": "variant"; "required": false; "isSignal": true; }; "size": { "alias": "size"; "required": false; "isSignal": true; }; "label": { "alias": "label"; "required": false; "isSignal": true; }; "name": { "alias": "name"; "required": false; "isSignal": true; }; "value": { "alias": "value"; "required": true; "isSignal": true; }; "selected": { "alias": "selected"; "required": false; "isSignal": true; }; "parentForm": { "alias": "parentForm"; "required": false; "isSignal": true; }; "formControlName": { "alias": "formControlName"; "required": false; "isSignal": true; }; "stopPropagation": { "alias": "stopPropagation"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; }, { "selected": "selectedChange"; "valueUpdated": "valueUpdated"; "clicked": "clicked"; "keyDownEnter": "keyDownEnter"; "keyDownSpace": "keyDownSpace"; "triggered": "triggered"; "disabled": "disabledChange"; }, never, never, true, never>;
}