import { EventEmitter, ElementRef, OnChanges, OnInit, OnDestroy } from '@angular/core';
import { FudisIcon, FudisIconRotate } from '../../types/icons';
import { PopoverApiDirective } from '../../directives/popover/popover-api.directive';
import { FudisIdService } from '../../services/id/id.service';
import { FudisButtonSize, FudisButtonType, FudisButtonVariant, FudisComponentChanges } from '../../types/miscellaneous';
import { BehaviorSubject } from 'rxjs';
import { DropdownEventService } from '../../services/dropdown/dropdown-event.service';
import * as i0 from "@angular/core";
export declare class ButtonComponent extends PopoverApiDirective implements OnChanges, OnInit, OnDestroy {
    private _idService;
    private _dropdownEventService;
    constructor(_idService: FudisIdService, _dropdownEventService: DropdownEventService);
    /**
     * Binding host CSS class to component wrapper
     */
    private _classes;
    /**
     * Reference to native button element
     */
    buttonEl: ElementRef<HTMLButtonElement>;
    /**
     * Text content of the button
     */
    label: string;
    /**
     * Button variant options
     */
    variant: FudisButtonVariant;
    /**
     * Button size options
     */
    size: FudisButtonSize;
    /**
     * Button type options
     */
    type: FudisButtonType;
    /**
     * Hide visible label text for icon-only buttons.
     */
    labelHidden: boolean;
    /**
     * Additional aria-label for describing context
     */
    ariaLabel: string;
    /**
     * Disables the button, keeping it focusable
     */
    disabled: boolean;
    /**
     * Icon for button if needed
     */
    icon: FudisIcon | undefined;
    /**
     * Icon rotation option
     */
    iconRotate: FudisIconRotate;
    /**
     * Id for HTML button element. By default generated.
     */
    id: string;
    /**
     * Assign button as menu button with dropdown
     */
    asMenuButton: boolean;
    /**
     * Click handler
     */
    handleClick: EventEmitter<Event>;
    /**
     * Focus handler
     */
    handleFocus: EventEmitter<FocusEvent>;
    /**
     * Blur handler
     */
    handleBlur: EventEmitter<FocusEvent>;
    /**
     * OnDestroy handler emit
     */
    handleDestroy: EventEmitter<void>;
    /**
     * Toggle dropdown menu button
     */
    dropdownOpen: BehaviorSubject<boolean>;
    /**
     * Id of child Dropdown Menu. Passed from child to parent Button.
     */
    dropdownMenuId: string;
    /**
     * Automatically sets icon color based on button variant
     */
    protected _iconColor: BehaviorSubject<"primary" | "yellow" | "red" | "gray-dark" | "gray-light" | "primary-dark" | "green" | "white">;
    /**
     * Button CSS class list
     */
    protected _classList: BehaviorSubject<string[]>;
    /**
     * Aria-label for icon-only buttons
     */
    protected _ariaLabel: BehaviorSubject<string>;
    /**
     * Is button focused or not
     */
    private _focused;
    ngOnInit(): void;
    ngOnChanges(changes: FudisComponentChanges<ButtonComponent>): void;
    ngOnDestroy(): void;
    /**
     * Button click event
     */
    buttonClick(event: Event): void;
    /**
     * Toggling when Button is used as Menu Button
     */
    toggleMenu(): void;
    /**
     * Close dropdown when Button is used as Menu Button
     */
    closeMenu(focusToButton?: boolean): void;
    /**
     * Handle Escape key down for Menu Button
     */
    protected _handleMenuButtonKeyDown(event: KeyboardEvent): void;
    /**
     * Handler for blurring out and closing Menu Button's dropdown
     */
    protected _handleButtonBlur(event: FocusEvent): void;
    /**
     * Handle button focus
     */
    protected _handleButtonFocus(event: FocusEvent): void;
    /**
     * Add aria-label for buttons without visible label
     */
    private _getAriaLabel;
    /**
     * Determine icon color based on button variant. Return CSS classes with size and variant
     */
    private _getClasses;
    static ɵfac: i0.ɵɵFactoryDeclaration<ButtonComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<ButtonComponent, "fudis-button", never, { "label": { "alias": "label"; "required": true; }; "variant": { "alias": "variant"; "required": false; }; "size": { "alias": "size"; "required": false; }; "type": { "alias": "type"; "required": false; }; "labelHidden": { "alias": "labelHidden"; "required": false; }; "ariaLabel": { "alias": "ariaLabel"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; "icon": { "alias": "icon"; "required": false; }; "iconRotate": { "alias": "iconRotate"; "required": false; }; "id": { "alias": "id"; "required": false; }; "asMenuButton": { "alias": "asMenuButton"; "required": false; }; }, { "handleClick": "handleClick"; "handleFocus": "handleFocus"; "handleBlur": "handleBlur"; "handleDestroy": "handleDestroy"; }, never, ["*"], false, never>;
}