/**
* DevExtreme (ui/drop_down_editor/ui.drop_down_list.d.ts)
* Version: 20.1.7
* Build date: Tue Aug 25 2020
*
* Copyright (c) 2012 - 2020 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import '../../jquery_augmentation';

import {
    dxElement
} from '../../core/element';

import {
    template
} from '../../core/templates/template';

import DataSource from '../../data/data_source';

import {
    event
} from '../../events/index';

import {
    DataExpressionMixinOptions
} from '../editor/ui.data_expression';

import dxDropDownEditor, {
    dxDropDownEditorOptions
} from './ui.drop_down_editor';

/** Warning! This type is used for internal purposes. Do not import it directly. */
export interface dxDropDownListOptions<T = dxDropDownList> extends DataExpressionMixinOptions<T>, dxDropDownEditorOptions<T> {
    /** Returns the value currently displayed by the widget. */
    displayValue?: string;
    /** Specifies a custom template for group captions. */
    groupTemplate?: template | ((itemData: any, itemIndex: number, itemElement: dxElement) => string | Element | JQuery);
    /** Specifies whether data items should be grouped. */
    grouped?: boolean;
    /** The minimum number of characters that must be entered into the text box to begin a search. Applies only if searchEnabled is true. */
    minSearchLength?: number;
    /** The text or HTML markup displayed by the widget if the item collection is empty. */
    noDataText?: string;
    /** A function that is executed when a list item is clicked or tapped. */
    onItemClick?: ((e: { component?: T, element?: dxElement, model?: any, itemData?: any, itemElement?: any, itemIndex?: number | any, event?: event }) => any);
    /** A function that is executed when a list item is selected or selection is canceled. */
    onSelectionChanged?: ((e: { component?: T, element?: dxElement, model?: any, selectedItem?: any }) => any);
    /** A function that is executed after the widget's value is changed. */
    onValueChanged?: ((e: { component?: T, element?: dxElement, model?: any, value?: any, previousValue?: any, jQueryEvent?: JQueryEventObject, event?: event }) => any);
    /** Specifies whether to allow searching. */
    searchEnabled?: boolean;
    /** Specifies the name of a data source item field or an expression whose value is compared to the search criterion. */
    searchExpr?: string | Function | Array<string | Function>;
    /** Specifies a comparison operation used to search widget items. */
    searchMode?: 'contains' | 'startswith';
    /** Specifies the time delay, in milliseconds, after the last character has been typed in, before a search is executed. */
    searchTimeout?: number;
    /** Gets the currently selected item. */
    selectedItem?: any;
    /** Specifies whether or not the widget displays unfiltered values until a user types a number of characters exceeding the minSearchLength option value. */
    showDataBeforeSearch?: boolean;
    /** Specifies the currently selected value. May be an object if dataSource contains objects and valueExpr is not set. */
    value?: any;
    /** Specifies the DOM events after which the widget's value should be updated. */
    valueChangeEvent?: string;
    /** Specifies whether text that exceeds the drop-down list width should be wrapped. */
    wrapItemText?: boolean;
}
/** Warning! This type is used for internal purposes. Do not import it directly. */
/** A base class for drop-down list widgets. */
export default class dxDropDownList extends dxDropDownEditor {
    constructor(element: Element, options?: dxDropDownListOptions)
    constructor(element: JQuery, options?: dxDropDownListOptions)
    getDataSource(): DataSource;
}