import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, OnDestroy, OnInit, Renderer2, TemplateRef } from '@angular/core';
import { AbstractControl, ControlContainer, ControlValueAccessor, FormGroupDirective } from '@angular/forms';
import { BzLayoutService } from '../../layout/layout.service';
import { OverlayPositionEnum } from '../../overlay/overlay.enum';
import { CommonService } from '../../utilities/service/common.service';
import { RendererService } from '../../utilities/service/renderer.service';
import { SafeAny, SafeBoolean } from '../../utilities/type/type';
import { BzBaseComponent } from '../base/base.component';
import { BzContextMenuService } from '../context-menu/context-menu.service';
export declare class BzDropdownComponent extends BzBaseComponent implements OnInit, AfterViewInit, ControlValueAccessor, OnDestroy {
    private _controlContainer;
    private contextMenuService;
    private _commonService;
    private cd;
    private _renderer;
    private _layoutService;
    private _renderer2;
    formGroupDirective: FormGroupDirective;
    label: string;
    multiValue: boolean;
    private _multiArray;
    checkedArray: boolean[];
    flip: string;
    disabledValue: boolean;
    buttonWidth: number;
    isPlaceholder: boolean;
    onChanged: any;
    onTouched: any;
    private _DEFAULT_STATUS;
    statusValue: string;
    positionValue: OverlayPositionEnum;
    scrollIndex: number;
    private _subscriptions;
    selectedValue: any;
    formControl: AbstractControl | undefined | null;
    validation: boolean;
    validStatusClass: string;
    validationErrorClass: string;
    private selected;
    private multiSelected;
    private _isTouched;
    private _alreadyInwrite;
    isTriggerValid: boolean;
    optionsValue: any[];
    noOptionHeight: boolean;
    set options(values: any[]);
    optionLabel: string;
    set multiSelectedOption(value: any[]);
    set multi(value: boolean | string);
    set disableAttr(value: boolean | string);
    formControlName: string;
    placeholder: string;
    optionValue: string;
    template: TemplateRef<HTMLElement>;
    set status(value: string);
    errorStatus: Function;
    set position(value: string);
    set selectedOption(value: SafeAny);
    dropLabel: string;
    set noOptHeight(value: boolean | string);
    validKey: string;
    iconButton: string;
    onSelect: EventEmitter<SafeAny>;
    onChange: EventEmitter<SafeAny>;
    onChangeFromSecond: EventEmitter<SafeAny>;
    button: ElementRef<HTMLButtonElement>;
    constructor(_controlContainer: ControlContainer, contextMenuService: BzContextMenuService, _commonService: CommonService, cd: ChangeDetectorRef, _renderer: RendererService, _layoutService: BzLayoutService, _renderer2: Renderer2, formGroupDirective: FormGroupDirective);
    ngOnInit(): void;
    ngAfterViewInit(): void;
    /**
     * Set control and status.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     */
    private _setControlAndStatus;
    /**
     * Set dropdown value at start.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @return {void}
     */
    private setDropdownValueAtStart;
    /**
     * Gets selected item when dropdwon is not multiple.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {SafeAny} option
     */
    getOption(option: SafeAny): void;
    /**
     * Gets option label by value.
     *
     * @author Federico Gambardella<federico.gambardella@micgeroup.it>
     * @param {any} value
     * @returns {any}
     */
    getOptionLabelByValue(value: any): any;
    /**
     * Get option value.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {any} option
     * @returns {any}
     */
    getOptionValue(option: any): any;
    /**
     * Resolves option by property.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {any} option
     * @param {string} property
     */
    _resolveOption(options: any, property: string): any;
    /**
     * Opens context menu.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {TemplateRef<HTMLElement>} templElement
     * @param {TemplateRef<HTMLElement>} dropRefNormal
     * @param {TemplateRef<HTMLElement>} dropRefMulti
     * @param {any} options
     * @param {string} optionLabel
     */
    openContextMenu(templElement: TemplateRef<HTMLElement> | HTMLElement, dropRefNormal: TemplateRef<HTMLElement>, dropRefMulti: TemplateRef<HTMLElement>, options: any, optionLabel: string): void;
    /**
     * Sets context menu width.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     */
    private _setContextMenuWidth;
    /**
     * Gets selected item when dropdown is multiple.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {any} option
     * @param {HTMLInputElement} input
     * @param {number} index
     */
    getOptionMulti(option: any, index: number, checked: boolean): void;
    /**
     * Sets dropdwon placeholder.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     */
    private _setPlaceholder;
    /**
     * Fill form control.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {itemArray} itemArray
     */
    private _fillFormControl;
    /**
     * Builds label and select checkbox  of item selected
     * when menu is opened.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     */
    private _buildLabelMultiAndItemArray;
    /**
     * Builds label of mulitple select.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {NumberObject} indexIterator
     * @param {any} array
     * @param {number} arrayLength
     */
    private _buildLabelMulti;
    /**
     * Sets dropdown label and select
     * checkbox of item presents in initArraySelected list.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {any[]} initArraySelected
     */
    private _initDropdown;
    /**
     * Build label for multi select if optionValue is defined.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {any} values
     * @param {NumberObject} indexIterator
     * @param {number} valuesLength
     */
    private _buildLabelMultiByOptionValue;
    /**
     * Set label multi.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {number} index
     * @param {NumberObject} indexIterator
     * @param {number} valuesLength
     */
    private _setLabelMulti;
    /**
     * Animate icon.
     *
     * @author Federico Gambardella<fe.gambarella@reply.it>
     */
    private _flipIcon;
    /**
     * listen when context menu is closed.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     */
    private _listenForCloseMenu;
    /**
     * Listen to toggle menu.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @return {void}
     */
    private _listenToggleMenu;
    /**
     * Write value in the form.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {SafeAny} value
     */
    writeValue(value: SafeAny, option?: SafeAny): void;
    /**
     * Emit option selected only if option value is changed.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {SafeAny} prevValue
     * @param {SafeAny} option
     */
    emitOnChangeEvent(prevValue: SafeAny, option: SafeAny): void;
    /**
     * Emit option selected only if option value is changed.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {SafeAny} prevValue
     * @param {SafeAny} option
     */
    private emitOnChangeFromSecondEvent;
    /**
    * Get otpion label if value in input is not an object.
    *
    * @author Federico Gambardella<fedega86@libero.it>
    * @param {number} index
    * @param {any} value
    */
    private _getOptionLabelNotObject;
    /**
       * Get otpion label if value in input is  an object.
       *
       * @author Federico Gambardella<fedega86@libero.it>
       * @param {number} index
       * @param {SafeAny} value
       */
    private _getOptionLabelObject;
    /**
      * Set input state.
      *
      * @author Federico Gambardella<fedega86@libero.it>
      * @return {void}
      */
    private _setInputState;
    /**
     * Mark control as touched and set error state.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param {SafeAny} value
     */
    private _setTouchedAndState;
    /**
       * Set css radio class by status.
       *
       * @author Federico Gambardella<fedega86@libero.it>
       * @param {string} status
       */
    private _setInputCssClassByStatus;
    /**
    * Set status value.
    *
    * @author Federico Gambardella<fedega86@libero.it>
    * @param {string} value
    */
    private _setStatus;
    /**
     * Set focus on button.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     */
    private _setFocusOnButton;
    /**
     * Set context menu width on resize.
     *
     * @author Federico Gambardella<fedega86@libero.it>
     */
    private _setContextMenuWidthOnResize;
    /**
     * Set label
     *
     * @author Federico Gambardella<fedega86@libero.it>
     * @param value
     */
    _setLabel(value: any): void;
    registerOnChange(fn: (item: any) => void): void;
    registerOnTouched(fn: () => void): void;
    setDisabledState(isDisabled: boolean): void;
    /**
  * Check validation if triggered by event.
  *
  * @author Federico Gambardella
  * @param {boolean} isTriggered
  * @returns
  */
    checkIfTriggerByEvent(isTriggered: SafeBoolean): boolean;
    /**
       * Check sumbit.
       *
       * @author Federico Gambardella<federico.gambardella>
       * @return {void}
       */
    protected _checkSumbit(): void;
    /**
       * Check validation on event.
       *
       * @author Federico Gambardella
       */
    protected _chekValidationOnEvent(): void;
    /**
     * Check validation.
     *
     * @author Federico Gambardella
     */
    protected _checkValidation(): void;
    /**
        * Set is error state color.
        *
        * @author Federico Gambardella<fedega86@libero.it>
        * @return {void}
        */
    protected _setIsErrorStateColor(isTriggered?: boolean): void;
    /**
    * Set required css class.
    *
    * @author Federico Gambardella
    */
    protected _setRequiredCssClass(): void;
    ngOnDestroy(): void;
}