import { ElementRef, EventEmitter, OnInit, AfterViewInit, OnDestroy, QueryList } from '@angular/core';
import { FormGroup } from '@angular/forms';
import { SelectOption } from '@ieeesa-npm/models';
import { FieldConfig } from '../../models/field-config.model';
import { SearchType } from '../../models/search.model';
import { SearchComponent } from '../../components/search/search.component';
import { FormUtilityService } from '../../services/form-utility.service';
import { SelectOpenedState } from '../../models/select-opened-state.model';
import * as i0 from "@angular/core";
/**
 * Component implementation supports select type of form filed and select type is configurable to support single selection or multi-selection with multilevel or single level.
 * @export
 * @class SelectComponent
 * @implements {OnInit}
 * @implements {AfterViewInit}
 * @implements {OnDestroy}
 */
export declare class SelectComponent implements OnInit, AfterViewInit, OnDestroy {
    private formUtilityService;
    private elementRef;
    formFields: QueryList<SearchComponent>;
    group: FormGroup;
    config: FieldConfig;
    arrowDirection: boolean;
    searchType: SearchType;
    sortedOptions: SelectOption[];
    dropdownInfo: any;
    private _dropdownOptions;
    private _selectedOptions;
    private _isSortNeeded;
    private unsortedDropdownOptions;
    private formOverlayScrollContainer?;
    private readonly overlayWheelListener;
    /**
     * Takes isSortNeeded as input to check if the passed options are sorted or not.
     * @memberof SelectComponent
     */
    set isSortNeeded(value: boolean);
    get isSortNeeded(): boolean;
    /**
     * Sets the dropdown options for selection.
     * @memberof SelectComponent
     */
    set dropdownOptions(value: SelectOption[]);
    get dropdownOptions(): SelectOption[];
    /**
     * Sets the selected option
     * @memberof SelectComponent
     */
    set selectedOptions(value: SelectOption | SelectOption[]);
    get selectedOptions(): SelectOption | SelectOption[];
    formControlName: string;
    isMultiLevel: boolean;
    isLabelAlignedLeft: boolean;
    selectLabel: string;
    isMultiSelect: boolean;
    isDisabled: boolean;
    isSearch: boolean;
    placeholderText: any;
    optionSelected: EventEmitter<SelectOption>;
    optionSearched: EventEmitter<string>;
    dropdownOpenedChange: EventEmitter<SelectOpenedState>;
    constructor(formUtilityService: FormUtilityService, elementRef: ElementRef<HTMLElement>);
    /**
     * Initializes components instance properties from config if its defined otherwise creates form group and config.
     * @memberof SelectComponent
     */
    ngOnInit(): void;
    /**
     * Emits selected option on changes the selected option.
     * @param {SelectOption} event
     * @memberof SelectComponent
     */
    onChange(event: SelectOption): void;
    /**
     * Sets the select dropdown arrow direction
     * @param {boolean} opened
     * @memberof SelectComponent
     */
    updateArrowDirection(opened: boolean): void;
    prepareSelectOverlayPosition(): void;
    /**
     * Clears form overlay bounds when the component is destroyed while open.
     * @memberof SelectComponent
     */
    ngOnDestroy(): void;
    private setOverlayClipBounds;
    private getFormOverlayScrollContainer;
    private clearOverlayClipBounds;
    private keepTopSelectPanelInsideFormBody;
    /**
     * Takes the index and the current option as arguments and needs to return the unique identifier for this option.
     * @param {number} index
     * @param {SelectOption} option
     * @return {(number | string)}
     * @memberof SelectComponent
     */
    trackByFn(index: number, option: SelectOption): number | string;
    /**
     * Emits searched options on filtering options in select dropdown
     * @param {string} searchText
     * @memberof SelectComponent
     */
    onOptionSearch(searchText: string): void;
    /**
     * Compares the two passed options
     * @param {any} option1
     * @param {any} option2
     * @return {boolean}
     * @memberof SelectComponent
     */
    comparer(option1: any, option2: any): boolean;
    /**
     * Sorts the options
     * @memberof SelectComponent
     */
    ngAfterViewInit(): void;
    /**
     * Sorts the options by using arraySorting method
     * @memberof SelectComponent
     */
    sortOptions(): void;
    /**
     * Utility method to sort dropdown options in ascending order.
     * @param {SelectOption[]} list
     * @return {SelectOption[]}
     * @memberof SelectComponent
     */
    arraySorting(list: SelectOption[]): SelectOption[];
    static ɵfac: i0.ɵɵFactoryDeclaration<SelectComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<SelectComponent, "ieeesa-select", never, { "isSortNeeded": { "alias": "isSortNeeded"; "required": false; }; "dropdownOptions": { "alias": "dropdownOptions"; "required": false; }; "selectedOptions": { "alias": "selectedOptions"; "required": false; }; "formControlName": { "alias": "formControlName"; "required": false; }; "isMultiLevel": { "alias": "isMultiLevel"; "required": false; }; "isLabelAlignedLeft": { "alias": "isLabelAlignedLeft"; "required": false; }; "selectLabel": { "alias": "selectLabel"; "required": false; }; "isMultiSelect": { "alias": "isMultiSelect"; "required": false; }; "isDisabled": { "alias": "isDisabled"; "required": false; }; "isSearch": { "alias": "isSearch"; "required": false; }; "placeholderText": { "alias": "placeholderText"; "required": false; }; }, { "optionSelected": "optionSelected"; "optionSearched": "optionSearched"; "dropdownOpenedChange": "dropdownOpenedChange"; }, never, never, true, never>;
}