import { EventEmitter } from '../../stencil-public-runtime';
/**
 * Checkboxes allow users to select none, one, or multiple items from a list.
 *
 * Overall behavior is based on native `<input type="checkbox">`
 *
 * Example:
 * ```
 * <r-checkbox name="newsletter" value="subscribe">Subscribe to newsletter</r-checkbox>
 * <r-checkbox name="terms" value="accepted" required>I accept the terms and conditions</r-checkbox>
 * <r-checkbox name="promo" value="promo" checked>Receive promotional emails</r-checkbox>
 * <r-checkbox name="archived" value="archived" disabled>Archived (disabled)</r-checkbox>
 * ```
 *
 * @slot - Checkbox label text
 */
export declare class Checkbox {
    /** Host DOM element */
    host: HTMLRCheckboxElement;
    /** Specifies the `id` of the `<form>` to which the element belongs */
    form?: string;
    /** Specifies if element must be ignored during validation of the form elements */
    novalidate?: boolean;
    /** Name of element (data) within a form */
    name?: string;
    /** Value of element data within a form */
    value?: string;
    /** Pass initial checked state */
    checked?: boolean;
    /** Visually present checkbox in indeterminate state (neither checked nor unchecked) */
    indeterminate?: boolean;
    /** Prevent user interaction and apply disabled style */
    disabled?: boolean;
    /** Automatically focus the checkbox when the component is mounted. Note: Only one element per page should have autofocus set to true, following browser standard behavior. */
    autofocus?: boolean;
    /** Indicate that validation is successful */
    valid?: boolean;
    /** Indicate that validation has failed */
    invalid?: boolean;
    /** Custom validation error message */
    error?: string;
    /** Specifies if checkbox must be checked */
    required?: boolean;
    /** Set custom message for `valueMissing` property of a ValidityState object (set by `required`) within Constrain Validation API */
    valueMissingMessage?: string;
    /** Set custom message for `customError` property of a ValidityState object indicating whether the element's custom validity message has been set to a non-empty string by calling the element's setCustomValidity() method. */
    customErrorMessage?: string;
    validityState: string;
    validityMessage: string;
    touched: boolean;
    /**
     * Emit custom `rChange` event when checkbox onChange event emitted.
     * Emitted `event.details` contain checkbox value and checked state.
     * */
    rChange: EventEmitter<{
        element: HTMLRCheckboxElement;
        value: any;
        checked: boolean;
    }>;
    /** Emits `rReset` when component was reset to initial state by form reset */
    rReset: EventEmitter<{
        element: HTMLRCheckboxElement;
        value: any;
        checked: boolean;
    }>;
    /** Emits event after each validation */
    rValidate: EventEmitter<{
        state: string;
        message: string;
    }>;
    /**
     * Asynchronously retrieves the validity state of the checkbox.
     *
     * This method updates the internal validity state and message by calling `getValidityStateData`
     * with the native element, and then returns an object containing the current validity state and message.
     *
     * @returns A promise that resolves to an object containing the validity state and message.
     * The object has two properties:
     *   - `state`: A string representing the validity state.
     *   - `message`: A string containing the validity message.
     */
    getValidityState(): Promise<{
        state: string;
        message: string;
    }>;
    /**
     * Sets focus on the checkbox element.
     */
    setFocus(): Promise<void>;
    /**
     * Removes focus from the checkbox element.
     */
    setBlur(): Promise<void>;
    /**
     * Checks the checkbox element.
     */
    check(): Promise<void>;
    /**
     * Unchecks the checkbox element.
     */
    uncheck(): Promise<void>;
    /**
     * Toggles the checked state of the checkbox element.
     */
    toggleChecked(): Promise<void>;
    /**
     * Sets the indeterminate state of the checkbox element.
     */
    setIndeterminate(): Promise<void>;
    /**
     * Sets the indeterminate state of the checkbox element.
     */
    clearIndeterminate(): Promise<void>;
    /** Validates an element, displays provided message in case value is invalid. */
    setCustomValidity(message: string): Promise<void>;
    /**
     * Validates the checkbox without triggering UI and returns a boolean indicating its validity.
     * @returns A boolean indicating whether the checkbox is valid.
     */
    checkValidity(): Promise<boolean>;
    private initial;
    private nativeElement?;
    private uniqueId;
    handleCheckedChange(): Promise<void>;
    /** Identify wrapping form element */
    private get parentFormEl();
    /** Determine whether this element should be ignored during Constraint Validation API validation. */
    private get isNoValidate();
    private get hasErrorMessage();
    private get hasCustomErrorMessage();
    private get hasValidationError();
    private get hasInvalidMessage();
    private getValidityStateData;
    private validateFormElement;
    private handleClick;
    private onSubmitForm;
    private onResetForm;
    private contributeToFormData;
    private connectFormEventListeners;
    private disconnectFormEventListeners;
    private applyAutofocus;
    componentWillLoad(): void;
    componentDidLoad(): void;
    connectedCallback(): void;
    disconnectedCallback(): void;
    render(): any;
}