import { AriaRole } from "../../util/aria";
import { IRowing } from "../../util/rowing";
import { ISwitchBehaviorProperties, SwitchBehavior } from "../switch/switch-behavior";
export interface IRadioBehaviorProperties extends ISwitchBehaviorProperties {
}
/**
 * Radio behavior.
 */
export declare abstract class RadioBehavior extends SwitchBehavior implements IRadioBehaviorProperties, IRowing<RadioBehavior> {
    static styles: import("lit-element").CSSResult[];
    /**
     * Role of the radio behavior.
     * @attr
     */
    role: AriaRole;
    /**
     * Form element type.
     */
    protected formElementType: string;
    /**
     * Query the group.
     */
    queryGroup(): RadioBehavior[];
    /**
     * Checks and focuses a grouped element.
     * @param elem
     */
    rowToElement(elem: RadioBehavior): void;
    /**
     * Checks and unchecks the component.
     */
    protected toggle(): void;
    /**
     * Updates the tabindex.
     */
    protected updateTabindex(props: Map<keyof ISwitchBehaviorProperties, unknown>): void;
    /**
     * Returns whether at least one radio from the group is checked.
     */
    protected isGroupedChecked(): boolean;
    /**
     * Unchecks the rest of the group.
     * Also removes the other radios from the tab order to support rowing tabindex.
     */
    protected uncheckGroup(): void;
    /**
     * Handles the key up event.
     * Adds support for rowing tabindex.
     * @param e
     */
    protected onKeyDown(e: KeyboardEvent): void;
}