import { FormControlController } from '../../internal/form.js';
import ShoelaceElement from '../../internal/shoelace-element.js';
import SlButtonGroup from '../button-group/button-group.component.js';
import type { CSSResultGroup } from 'lit';
import type { ShoelaceFormControl } from '../../internal/shoelace-element.js';
/**
 * @summary Radio groups are used to group multiple [radio buttons](/components/radio) or [segmented controls](/components/radio-button) so they function as a single control.
 * @documentation https://shoelace.style/components/radio-group
 * @status stable
 * @since 2.0
 * @pattern stable
 * @figma ready
 *
 * @dependency sl-button-group
 *
 * @slot - The default slot where `<sl-radio>` or `<sl-radio-button>` elements are placed.
 * @slot label - The radio group's label. Required for proper accessibility. Alternatively, you can use the `label` attribute.
 * @slot label-tooltip - Used to add text that is displayed in a tooltip next to the label. Alternatively, you can use the `label-tooltip` attribute.
 * @slot help-text - Text that describes how to use the radio group. Alternatively, you can use the `help-text` attribute.
 *
 * @event sl-change - Emitted when the radio group's selected value changes.
 * @event sl-input - Emitted when the radio group receives user input.
 * @event sl-invalid - Emitted when the form control has been checked for validity and its constraints aren't satisfied.
 *
 * @csspart form-control - The form control that wraps the label, input, and help text.
 * @csspart form-control-label - The label's wrapper.
 * @csspart form-control-input - The input's wrapper.
 * @csspart form-control-help-text - The help text's wrapper.
 * @csspart button-group - The button group that wraps radio buttons.
 * @csspart button-group__base - The button group's `base` part.
 */
export default class SlRadioGroup extends ShoelaceElement implements ShoelaceFormControl {
    static styles: CSSResultGroup;
    static dependencies: {
        'sl-button-group': typeof SlButtonGroup;
    };
    protected readonly formControlController: FormControlController;
    private readonly hasSlotController;
    private customValidityMessage;
    private validationTimeout;
    defaultSlot: HTMLSlotElement;
    validationInput: HTMLInputElement;
    private hasButtonGroup;
    private errorMessage;
    defaultValue: string;
    /**
     * The radio group's label. Required for proper accessibility. If you need to display HTML, use the `label` slot
     * instead.
     */
    label: string;
    /** Text that appears in a tooltip next to the label. If you need to display HTML in the tooltip, use the `label-tooltip` slot instead. */
    labelTooltip: string;
    /** The radio groups's help text. If you need to display HTML, use the `help-text` slot instead. */
    helpText: string;
    /** The name of the radio group, submitted as a name/value pair with form data. */
    name: string;
    /** The current value of the radio group, submitted as a name/value pair with form data. */
    value: string;
    /** The radio group's size. This size will be applied to all child radios and radio buttons. */
    size: 'small' | 'medium' | 'large';
    /** The radio group's orientation. Changes the group's layout from the default (vertical) to horizontal. */
    horizontal: boolean;
    /** The radio group's style. Changes the group's style from the default (plain) style to the 'contained' style. This style will be applied to all child radios (but not child radio buttons, which do not have the 'contained' style as an option). */
    contained: boolean;
    /**
     * By default, form controls are associated with the nearest containing `<form>` element. This attribute allows you
     * to place the form control outside of a form and associate it with the form that has this `id`. The form must be in
     * the same document or shadow root for this to work.
     */
    form: string;
    /** Ensures a child radio is checked before allowing the containing form to submit. */
    required: boolean;
    /** Gets the validity state object */
    get validity(): ValidityState;
    /** Gets the validation message */
    get validationMessage(): string;
    connectedCallback(): void;
    firstUpdated(): void;
    private getAllRadios;
    private handleRadioClick;
    private handleKeyDown;
    private handleLabelClick;
    private handleInvalid;
    private syncRadioElements;
    private syncRadios;
    private updateCheckedRadio;
    handleSizeChange(): void;
    handleValueChange(): void;
    /** Checks for validity but does not show a validation message. Returns `true` when valid and `false` when invalid. */
    checkValidity(): boolean;
    /** Gets the associated form, if one exists. */
    getForm(): HTMLFormElement | null;
    /** Checks for validity and shows the browser's validation message if the control is invalid. */
    reportValidity(): boolean;
    /** Sets a custom validation message. Pass an empty string to restore validity. */
    setCustomValidity(message?: string): void;
    render(): import("lit-html").TemplateResult<1>;
}