/*!
 * devextreme-angular-test
 * Version: 17.2.8
 * Build date: Mon Feb 05 2018
 *
 * Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
 *
 * This software may be modified and distributed under the terms
 * of the MIT license. See the LICENSE file in the root of the project for details.
 *
 * https://github.com/DevExpress/devextreme-angular
 */
import { ElementRef, NgZone, OnDestroy, Injector, EventEmitter, OnInit, AfterViewInit, OnChanges, DoCheck, SimpleChanges, QueryList } from '@angular/core';
import DevExpress from 'devextreme/bundles/dx.all';
import DxDropDownBox from 'devextreme/ui/drop_down_box';
import { DxValidatorComponent } from './validator';
import { ControlValueAccessor } from '@angular/forms';
import { DxComponent } from '../core/component';
import { DxTemplateHost } from '../core/template-host';
import { NestedOptionHost } from '../core/nested-option';
import { WatcherHelper } from '../core/watcher-helper';
import { IterableDifferHelper } from '../core/iterable-differ-helper';
import { DxiItemComponent } from './nested/item-dxi';
/**
 * The DropDownBox widget consists of a text field, which displays the current value, and a drop-down field, which can contain any UI element.
 */
export declare class DxDropDownBoxComponent extends DxComponent implements OnDestroy, OnInit, AfterViewInit, ControlValueAccessor, OnChanges, DoCheck {
    private _watcherHelper;
    private _idh;
    instance: DxDropDownBox;
    validator: DxValidatorComponent;
    /**
     * Specifies whether the widget allows a user to enter a custom value.
     */
    acceptCustomValue: boolean;
    /**
     * Specifies the shortcut key that sets focus on the widget.
     */
    accessKey: string;
    /**
     * Specifies whether or not the widget changes its state when interacting with a user.
     */
    activeStateEnabled: boolean;
    /**
     * Specifies a custom template for the drop-down content.
     */
    contentTemplate: any;
    /**
     * A data source used to fetch data to be displayed by the widget.
     */
    dataSource: DevExpress.data.DataSource | DevExpress.data.DataSourceOptions | string | Array<any>;
    /**
     * Specifies whether widget content is rendered when the widget is shown or when rendering the widget.
     */
    deferRendering: boolean;
    /**
     * Specifies whether the widget responds to user interaction.
     */
    disabled: boolean;
    /**
     * Specifies the name of the data source item field whose value is displayed by the widget.
     */
    displayExpr: Function | string;
    /**
     * Specifies a custom template for the drop-down button.
     */
    dropDownButtonTemplate: any;
    /**
     * Configures the drop-down field which holds the content.
     */
    dropDownOptions: DevExpress.ui.dxPopupOptions;
    /**
     * Specifies the attributes to be attached to the widget's root element.
     */
    elementAttr: any;
    /**
     * The template to be used for rendering the widget's text field.
     */
    fieldTemplate: any;
    /**
     * Specifies whether the widget can be focused using keyboard navigation.
     */
    focusStateEnabled: boolean;
    /**
     * Specifies the widget's height.
     */
    height: number | Function | string;
    /**
     * Specifies text for a hint that appears when a user pauses on the widget.
     */
    hint: string;
    /**
     * Specifies whether the widget changes its state when a user pauses on it.
     */
    hoverStateEnabled: boolean;
    /**
     * Specifies the attributes to be passed on to the underlying HTML element.
     */
    inputAttr: any;
    /**
     * Specifies whether the editor's value is valid.
     */
    isValid: boolean;
    /**
     * An array of items displayed by the widget.
     */
    items: Array<any | {
        disabled?: boolean;
        html?: string;
        template?: any;
        text?: string;
        visible?: boolean;
    }>;
    /**
     * The value to be assigned to the `name` attribute of the underlying HTML element.
     */
    name: string;
    /**
     * Specifies whether or not the drop-down editor is displayed.
     */
    opened: boolean;
    /**
     * The text displayed by the widget when the widget value is empty.
     */
    placeholder: string;
    /**
     * A Boolean value specifying whether or not the widget is read-only.
     */
    readOnly: boolean;
    /**
     * Switches the widget to a right-to-left representation.
     */
    rtlEnabled: boolean;
    /**
     * Specifies whether to display the Clear button in the widget.
     */
    showClearButton: boolean;
    /**
     * Specifies the number of the element when the Tab key is used for navigating.
     */
    tabIndex: number;
    /**
     * The read-only option that holds the text displayed by the widget input element.
     */
    text: string;
    /**
     * Specifies information on the validation error when using a custom validation engine. Should be changed at runtime along with the isValid option.
     */
    validationError: any;
    /**
     * Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.
     */
    validationMessageMode: string;
    /**
     * Specifies the currently selected value. May be an object if dataSource contains objects and valueExpr is not set.
     */
    value: any;
    /**
     * Specifies after which DOM events the widget updates the value.
     */
    valueChangeEvent: string;
    /**
     * Specifies which data field provides the widget's value. When this option is not set, the value is the entire data object.
     */
    valueExpr: Function | string;
    /**
     * Specifies whether the widget is visible.
     */
    visible: boolean;
    /**
     * Specifies the widget's width.
     */
    width: number | Function | string;
    /**
     * A handler for the change event.
     */
    onChange: EventEmitter<any>;
    /**
     * A handler for the closed event.
     */
    onClosed: EventEmitter<any>;
    /**
     * A handler for the copy event.
     */
    onCopy: EventEmitter<any>;
    /**
     * A handler for the cut event.
     */
    onCut: EventEmitter<any>;
    /**
     * A handler for the disposing event. Executed when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.
     */
    onDisposing: EventEmitter<any>;
    /**
     * A handler for the enterKey event.
     */
    onEnterKey: EventEmitter<any>;
    /**
     * A handler for the focusIn event.
     */
    onFocusIn: EventEmitter<any>;
    /**
     * A handler for the focusOut event.
     */
    onFocusOut: EventEmitter<any>;
    /**
     * A handler for the initialized event. Executed only once, after the widget is initialized.
     */
    onInitialized: EventEmitter<any>;
    /**
     * A handler for the input event.
     */
    onInput: EventEmitter<any>;
    /**
     * A handler for the keyDown event.
     */
    onKeyDown: EventEmitter<any>;
    /**
     * A handler for the keyPress event.
     */
    onKeyPress: EventEmitter<any>;
    /**
     * A handler for the keyUp event.
     */
    onKeyUp: EventEmitter<any>;
    /**
     * A handler for the opened event.
     */
    onOpened: EventEmitter<any>;
    /**
     * A handler for the optionChanged event. Executed after an option of the widget is changed.
     */
    onOptionChanged: EventEmitter<any>;
    /**
     * A handler for the paste event.
     */
    onPaste: EventEmitter<any>;
    /**
     * A handler for the valueChanged event.
     */
    onValueChanged: EventEmitter<any>;
    /**
     * A handler for the acceptCustomValueChange event.
     */
    acceptCustomValueChange: EventEmitter<boolean>;
    /**
     * A handler for the accessKeyChange event.
     */
    accessKeyChange: EventEmitter<string>;
    /**
     * A handler for the activeStateEnabledChange event.
     */
    activeStateEnabledChange: EventEmitter<boolean>;
    /**
     * A handler for the contentTemplateChange event.
     */
    contentTemplateChange: EventEmitter<any>;
    /**
     * A handler for the dataSourceChange event.
     */
    dataSourceChange: EventEmitter<DevExpress.data.DataSource | DevExpress.data.DataSourceOptions | string | Array<any>>;
    /**
     * A handler for the deferRenderingChange event.
     */
    deferRenderingChange: EventEmitter<boolean>;
    /**
     * A handler for the disabledChange event.
     */
    disabledChange: EventEmitter<boolean>;
    /**
     * A handler for the displayExprChange event.
     */
    displayExprChange: EventEmitter<Function | string>;
    /**
     * A handler for the dropDownButtonTemplateChange event.
     */
    dropDownButtonTemplateChange: EventEmitter<any>;
    /**
     * A handler for the dropDownOptionsChange event.
     */
    dropDownOptionsChange: EventEmitter<DevExpress.ui.dxPopupOptions>;
    /**
     * A handler for the elementAttrChange event.
     */
    elementAttrChange: EventEmitter<any>;
    /**
     * A handler for the fieldTemplateChange event.
     */
    fieldTemplateChange: EventEmitter<any>;
    /**
     * A handler for the focusStateEnabledChange event.
     */
    focusStateEnabledChange: EventEmitter<boolean>;
    /**
     * A handler for the heightChange event.
     */
    heightChange: EventEmitter<number | Function | string>;
    /**
     * A handler for the hintChange event.
     */
    hintChange: EventEmitter<string>;
    /**
     * A handler for the hoverStateEnabledChange event.
     */
    hoverStateEnabledChange: EventEmitter<boolean>;
    /**
     * A handler for the inputAttrChange event.
     */
    inputAttrChange: EventEmitter<any>;
    /**
     * A handler for the isValidChange event.
     */
    isValidChange: EventEmitter<boolean>;
    /**
     * A handler for the itemsChange event.
     */
    itemsChange: EventEmitter<Array<any | {
        disabled?: boolean;
        html?: string;
        template?: any;
        text?: string;
        visible?: boolean;
    }>>;
    /**
     * A handler for the nameChange event.
     */
    nameChange: EventEmitter<string>;
    /**
     * A handler for the openedChange event.
     */
    openedChange: EventEmitter<boolean>;
    /**
     * A handler for the placeholderChange event.
     */
    placeholderChange: EventEmitter<string>;
    /**
     * A handler for the readOnlyChange event.
     */
    readOnlyChange: EventEmitter<boolean>;
    /**
     * A handler for the rtlEnabledChange event.
     */
    rtlEnabledChange: EventEmitter<boolean>;
    /**
     * A handler for the showClearButtonChange event.
     */
    showClearButtonChange: EventEmitter<boolean>;
    /**
     * A handler for the tabIndexChange event.
     */
    tabIndexChange: EventEmitter<number>;
    /**
     * A handler for the textChange event.
     */
    textChange: EventEmitter<string>;
    /**
     * A handler for the validationErrorChange event.
     */
    validationErrorChange: EventEmitter<any>;
    /**
     * A handler for the validationMessageModeChange event.
     */
    validationMessageModeChange: EventEmitter<string>;
    /**
     * A handler for the valueChange event.
     */
    valueChange: EventEmitter<any>;
    /**
     * A handler for the valueChangeEventChange event.
     */
    valueChangeEventChange: EventEmitter<string>;
    /**
     * A handler for the valueExprChange event.
     */
    valueExprChange: EventEmitter<Function | string>;
    /**
     * A handler for the visibleChange event.
     */
    visibleChange: EventEmitter<boolean>;
    /**
     * A handler for the widthChange event.
     */
    widthChange: EventEmitter<number | Function | string>;
    onBlur: EventEmitter<any>;
    change(_: any): void;
    touched: () => void;
    itemsChildren: QueryList<DxiItemComponent>;
    constructor(elementRef: ElementRef, ngZone: NgZone, templateHost: DxTemplateHost, injector: Injector, _watcherHelper: WatcherHelper, _idh: IterableDifferHelper, optionHost: NestedOptionHost);
    protected _createInstance(element: any, options: any): DxDropDownBox;
    writeValue(value: any): void;
    setDisabledState(isDisabled: boolean): void;
    registerOnChange(fn: (_: any) => void): void;
    registerOnTouched(fn: () => void): void;
    _createWidget(element: any): void;
    ngOnDestroy(): void;
    ngOnChanges(changes: SimpleChanges): void;
    setupChanges(prop: string, changes: SimpleChanges): void;
    ngDoCheck(): void;
    _setOption(name: string, value: any): void;
    ngOnInit(): void;
    ngAfterViewInit(): void;
}
export declare class DxDropDownBoxModule {
}