import { DDropdownBase, DDropdownBaseEvents, DDropdownBaseOptions, DThemeDropdownBase } from "./d-dropdown-base";
import { DMenu } from "./d-menu";
import { DMenuItem } from "./d-menu-item";
import { DOnOptions } from "./d-on-options";
/**
 * {@link DSelect} events.
 */
export interface DSelectEvents<VALUE, EMITTER> extends DDropdownBaseEvents<VALUE, DMenuItem<VALUE> | null, EMITTER> {
    /**
     * Triggered when a selection is changed.
     *
     * @param newValue a newly-selected value
     * @param oldValue a previously-selected value
     * @param item a newly-selected item
     * @param emitter an emitter
     */
    change(newValue: VALUE | null, oldValue: VALUE | null, item: DMenuItem<VALUE> | null, emitter: EMITTER): void;
}
/**
 * {@link DSelect} "on" options.
 */
export interface DSelectOnOptions<VALUE, EMITTER> extends Partial<DSelectEvents<VALUE, EMITTER>>, DOnOptions {
}
/**
 * {@link DSelect} options.
 */
export interface DSelectOptions<VALUE = unknown, THEME extends DThemeSelect<VALUE> = DThemeSelect<VALUE>, EMITTER = any> extends DDropdownBaseOptions<VALUE, DMenuItem<VALUE> | null, THEME, EMITTER> {
    /**
     * A default value.
     */
    value?: VALUE | null;
    on?: DSelectOnOptions<VALUE, EMITTER>;
}
/**
 * {@link DSelect} theme.
 */
export interface DThemeSelect<VALUE = unknown> extends DThemeDropdownBase<DMenuItem<VALUE> | null> {
}
/**
 * A selector class.
 */
export declare class DSelect<VALUE = unknown, THEME extends DThemeSelect<VALUE> = DThemeSelect<VALUE>, OPTIONS extends DSelectOptions<VALUE, THEME> = DSelectOptions<VALUE, THEME>> extends DDropdownBase<VALUE, DMenuItem<VALUE> | null, THEME, OPTIONS> {
    protected _value: VALUE | null;
    constructor(options?: OPTIONS);
    protected onMenuSelect(newValue: VALUE, item: DMenuItem<VALUE>, menu: DMenu<VALUE>): void;
    protected onMenuReplaced(newMenu: DMenu<VALUE>, oldMenu?: DMenu<VALUE>): void;
    protected onValueChange(newValue: VALUE | null, oldValue: VALUE | null, item: DMenuItem<VALUE> | null): void;
    protected onMenuOpening(menu: DMenu<VALUE>): void;
    /**
     * Returns a selected value or null.
     */
    get value(): VALUE | null;
    /**
     * Sets to the specified value.
     */
    set value(value: VALUE | null);
    getValue(): VALUE | null;
    setValue(value: VALUE | null, forcibly?: boolean): void;
    protected getType(): string;
}