import { OnInit } from '@angular/core';
import { BaseDirective } from '../directives';
import { Popup } from '../directives';
import { SizeOption } from '../types/size-options.type';
import * as i0 from "@angular/core";
/**
 * @TailwindNG Button component interface.
 */
export interface Button {
    readonly popup?: Popup;
    readonly size: SizeOption;
    readonly isFab: boolean;
    readonly tabIndex: number;
    readonly variant: ButtonVariant;
}
/** Button variant */
export type ButtonVariant = 'primary' | 'secondary' | 'tonal' | 'text';
export interface ButtonConfig extends Partial<Record<ButtonVariant, string> & Record<SizeOption, string>> {
    base?: string;
    fab?: string;
}
export declare const BUTTON_CONFIG: import("@angular/core").InjectionToken<Partial<ButtonConfig>>;
export declare abstract class ButtonBase extends BaseDirective<HTMLButtonElement> implements Button, OnInit {
    tabIndex: number;
    popup?: Popup;
    isFab: boolean;
    size: SizeOption;
    variant: ButtonVariant;
    ngOnInit(): void;
    protected get isPopupExpanded(): boolean;
    protected onPointerUp(event: Event): void;
    protected onKeyup(event: KeyboardEvent): void;
    protected addEventListeners(): void;
    protected removeEventListeners(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ButtonBase, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ButtonBase, never, never, { "tabIndex": { "alias": "tabIndex"; "required": false; }; "popup": { "alias": "popup"; "required": false; }; "isFab": { "alias": "isFab"; "required": false; }; "size": { "alias": "size"; "required": false; }; "variant": { "alias": "variant"; "required": false; }; }, {}, never, never, true, never>;
}
/**
 * Checks if the component is a Button.
 * If so, you can have access to the Button members inside this block scope.
 */
export declare function isButton(component: unknown): component is Button;
/**
 * Checks if the component is a Primary Button.
 * If so, you can safely access the Button members inside this block scope.
 */
export declare function isPrimaryButton(component: unknown): component is Button;
/**
 * Checks if the component is a Secondary Button.
 * If so, you can safely access the Button members inside this block scope.
 */
export declare function isSecondaryButton(component: unknown): component is Button;
/**
 * Checks if the component is a Tonal Button.
 * If so, you can safely access the Button members inside this block scope.
 */
export declare function isTonalButton(component: unknown): component is Button;
/**
 * Checks if the component is a Text Button.
 * If so, you can safely access the Button members inside this block scope.
 */
export declare function isTextButton(component: unknown): component is Button;