import { InteractionEvent } from "pixi.js";
import { DButtonBase, DButtonBaseEvents, DButtonBaseOptions, DThemeButtonBase } from "./d-button-base";
import { DMenu, DMenuOptions, DThemeMenu } from "./d-menu";
import { DMenuItem } from "./d-menu-item";
import { DOnOptions } from "./d-on-options";
/**
 * {@link DDropdownBase} events.
 */
export interface DDropdownBaseEvents<VALUE, TEXT_VALUE, EMITTER> extends DButtonBaseEvents<VALUE, EMITTER> {
    /**
     * Triggered when a menu item is selected.
     *
     * @param value a value of a selected menu item
     * @param item a selected menu item
     * @param emitter an emitter
     */
    select(value: VALUE, item: DMenuItem<VALUE>, emitter: EMITTER): void;
    /**
     * Triggered when a menu is opened.
     */
    open(menu: DMenu<VALUE>, emitter: EMITTER): void;
}
/**
 * {@link DDropdownBase} "on" options.
 */
export interface DDropdownBaseOnOptions<VALUE, TEXT_VALUE, EMITTER> extends Partial<DDropdownBaseEvents<VALUE, TEXT_VALUE, EMITTER>>, DOnOptions {
}
/**
 * {@link DDropdownBase} options.
 */
export interface DDropdownBaseOptions<VALUE = unknown, TEXT_VALUE = string, THEME extends DThemeDropdownBase<TEXT_VALUE> = DThemeDropdownBase<TEXT_VALUE>, EMITTER = any> extends DButtonBaseOptions<TEXT_VALUE, THEME, EMITTER> {
    /**
     * Menu options.
     */
    menu?: DMenuOptions<VALUE> | DMenu<VALUE>;
    on?: DDropdownBaseOnOptions<VALUE, TEXT_VALUE, EMITTER>;
}
/**
 * {@link DDropdownBase} theme.
 */
export interface DThemeDropdownBase<TEXT_VALUE = unknown> extends DThemeButtonBase<TEXT_VALUE> {
}
/**
 * A dropdown base class.
 */
export declare class DDropdownBase<VALUE = unknown, TEXT_VALUE = string, THEME extends DThemeDropdownBase<TEXT_VALUE> = DThemeDropdownBase<TEXT_VALUE>, OPTIONS extends DDropdownBaseOptions<VALUE, TEXT_VALUE, THEME> = DDropdownBaseOptions<VALUE, TEXT_VALUE, THEME>> extends DButtonBase<TEXT_VALUE, THEME, OPTIONS> {
    protected _menu?: DMenu<VALUE>;
    protected _onMenuSelectBound?: (selected: VALUE, item: DMenuItem<VALUE>, menu: DMenu<VALUE>) => void;
    protected _onMenuCloseBound?: () => void;
    protected onMenuSelect(value: VALUE, item: DMenuItem<VALUE>, menu: DMenu<VALUE>): void;
    protected onMenuClose(menu?: DMenu<VALUE>): void;
    protected toMenu(theme: THEME, options?: OPTIONS): DMenu<VALUE>;
    protected toMenuOptions(theme: THEME, options?: DMenuOptions<VALUE>): DMenuOptions<VALUE, DThemeMenu>;
    get menu(): DMenu<VALUE>;
    set menu(newMenu: DMenu<VALUE>);
    protected onMenuReplaced(newMenu: DMenu<VALUE>, oldMenu?: DMenu<VALUE>): void;
    protected getType(): string;
    protected onKeyDown(e: KeyboardEvent): boolean;
    protected onKeyDownArrowDown(e: KeyboardEvent): boolean;
    protected onActivate(e?: InteractionEvent | KeyboardEvent | MouseEvent | TouchEvent): void;
    open(): void;
    protected onMenuOpening(menu: DMenu<VALUE>): void;
    protected onMenuOpened(menu: DMenu<VALUE>): void;
    close(): void;
}