import { IComponentController } from 'angular';
import type { TranslateFactory } from '../translate/translate-factory';
export declare type MFDropdownInputEnumOption = {
    id: MFDropdownInputOptionValue;
    label: string;
} | string;
export declare type MFDropdownInputOption = {
    id: MFDropdownInputOptionValue;
    label: string;
};
export declare type MFDropdownInputOptionValue = string | undefined | null;
export declare class MflyDropdown implements IComponentController {
    private translateFactory;
    dropdownTheme?: string;
    enumOptions: MFDropdownInputEnumOption[] | undefined;
    inputId: string;
    isDisabled: boolean;
    noEmptyOption: boolean;
    required: boolean;
    value: MFDropdownInputOptionValue;
    onChange?: (v: {
        value: MFDropdownInputOptionValue;
    }) => void;
    onClick?: () => void;
    protected options: Array<{
        id: MFDropdownInputOptionValue;
        label: string;
    }>;
    protected requiredText: string;
    constructor(translateFactory: TranslateFactory);
    $onChanges(changes: {
        enumOptions?: ng.IChangesObject<MFDropdownInputEnumOption[] | undefined>;
    }): void;
    $onInit(): void;
    valueWasChanged(value: MFDropdownInputOptionValue): void;
    inputWasClicked(): void;
    private transformOptions;
    private manageEmptyOptions;
}