import { ButtonSize, ButtonEmphasis, ButtonType } from '../../utils/constants';
/**
 * @slot default - Content of the button.
 * @slot leading-icon - Icon before the label.
 * @slot trailing-icon - Icon after the label.
 */
export declare class NvButton {
    internals: ElementInternals;
    el: HTMLNvButtonElement;
    /****************************************************************************/
    /**
     * Determines how large or small the button appears, allowing for
     * customization of the button's dimensions to fit different design
     * specifications and user needs.
     */
    readonly size: `${ButtonSize}`;
    /**
     * Adjusts the button's emphasis to make it more or less visually prominent
     * to users. Use this to draw attention to important actions or reduce focus
     * on less critical ones
     */
    readonly emphasis: `${ButtonEmphasis}`;
    /**
     * Use this prop to highlight the button when it represents the current page
     * or active selection. This helps users understand their navigation context.
     */
    readonly active: boolean;
    /**
     * Applies styling that visually indicates the button represents a dangerous
     * action.
     */
    readonly danger: boolean;
    /**
     * Set this to true to show a spinner on the button, letting users know that
     * their action is being processed. It helps improve user experience by
     * indicating ongoing activities.
     */
    loading: boolean;
    /**
     * Disables the button, preventing user interaction.
     */
    disabled: boolean;
    /**
     * Allows the button to stretch and fill the entire width of its container.
     */
    readonly fluid: boolean;
    /**
     * Sets the button type to control its function in forms. Use 'submit' to send
     * form data, 'reset' to clear the form, or 'button' for a standard button
     * that doesn't interact with form submission by default.
     */
    readonly type: `${ButtonType}`;
    /**
     * Sets the form associated with the button in case the (submit) button is not a child of a form.
     * Matches the native HTML button 'form' attribute behavior.
     */
    readonly form: string;
    /**
     * Use this to make the button skip-able when users navigate with the keyboard.
     * The button remains clickable but won’t be reached via the Tab key.
     */
    readonly disableTabindex: boolean;
    /****************************************************************************/
    /**
     * Handles button click events, managing form actions and disabled states.
     * Prevents default behavior when button is disabled or loading, and
     * processes form submissions/resets when appropriate.
     * @param {Event} event - The click event.
     */
    private handleButtonClick;
    /**
     * Processes form-related actions by finding the associated form element
     * and triggering the appropriate action (submit/reset) based on button type.
     * Falls back to ElementInternals form if no explicit form ID is provided.
     */
    private processFormAction;
    /****************************************************************************/
    handleKeyDown(event: KeyboardEvent): void;
    /****************************************************************************/
    handleLoadingChange(loading: boolean): void;
    handleDisabledChange(disabled: boolean): void;
    /****************************************************************************/
    componentWillLoad(): void;
    /****************************************************************************/
    render(): any;
}