import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, OnDestroy, OnInit } from '@angular/core';
import { MatAutocompleteTrigger } from '@angular/material/autocomplete';
import { FormGroup } from '@angular/forms';
import { Subject } from 'rxjs';
import { MatChipInputEvent } from '@angular/material/chips';
import { FormUtilityService } from '../../services/form-utility.service';
import { AutoCompleteOption } from '../../models/autocomplete-option.model';
import { SelectOption } from '@ieeesa-npm/models';
import { FieldConfig } from '../../models/field-config.model';
import { FormField } from '../../models/form-field.model';
import * as i0 from "@angular/core";
/**
 * MultiSelectAutocompleteComponent allows to search the option(s) from the list and select the option(s) from the autocomplete search results.
 * @class MultiSelectAutocompleteComponent
 * @implements {OnInit}
 * @implements {FormField}
 * @implements {OnDestroy}
 * @implements {AfterViewInit}
 */
export declare class MultiSelectAutocompleteComponent implements OnInit, FormField, OnDestroy, AfterViewInit {
    private formUtilityService;
    private readonly changeDetectorRef;
    separatorKeysCodes: number[];
    config: FieldConfig;
    group: FormGroup;
    selectedOptions: SelectOption[];
    autoCompleteOptionList: AutoCompleteOption[];
    /**
     * Sets the options for multi select autocomplete.
     * @memberof MultiSelectAutocompleteComponent
     */
    set multiSelectAutoCompleteOptions(value: AutoCompleteOption[]);
    /**
     * Returns the autocomplete options list.
     * @readonly
     * @type {AutoCompleteOption[]}
     * @memberof MultiSelectAutocompleteComponent
     */
    get multiSelectAutoCompleteOptions(): AutoCompleteOption[];
    multiSelectAutoCompleteSearchValue: EventEmitter<string>;
    multiSelectAutoCompleteClearSearchValue: EventEmitter<string>;
    multiSelectAutoCompleteOptionsSelected: EventEmitter<AutoCompleteOption[]>;
    multiSelectAutoComplete: ElementRef;
    matACTrigger: MatAutocompleteTrigger;
    destroy$: Subject<boolean>;
    autocompleteConstInfo: any;
    removeIconURL: any;
    clearAllIconURL: any;
    clearAll: any;
    constructor(formUtilityService: FormUtilityService, changeDetectorRef: ChangeDetectorRef);
    /**
     * Implementation of ngOnInit lifecycle hook method to initialize components instance properties.
     * @memberof MultiSelectAutocompleteComponent
     */
    ngOnInit(): void;
    /**
     * Initialize the form control change event once the form control is ready on ngAfterViewInit by calling onValueChanges method.
     * @memberof MultiSelectAutocompleteComponent
     */
    ngAfterViewInit(): void;
    /**
     * Emits an multiSelectAutoCompleteSearchValue change event when the value is changed and value is greater than minCharToSearch or equal to zero.
     * @memberof MultiSelectAutocompleteComponent
     */
    onValueChanges(): void;
    /**
     * Handles field error by setting the appropriate form control errors.
     * @memberof MultiSelectAutocompleteComponent
     */
    handleFieldError(): void;
    /**
     * Adds a newly entered option to the selectedOptions array.
     * @param {*} event -The event containing the input and value.
     * @memberof MultiSelectAutocompleteComponent
     */
    add(event: MatChipInputEvent): void;
    /**
     * Removes a selected option from the selectedOptions array.
     * @param {SelectOption} removedOption -The option to remove.
     * @memberof MultiSelectAutocompleteComponent
     */
    onOptionRemoved(removedOption: SelectOption): void;
    /**
     * Handles the selection of an autocomplete option.
     * @param {AutoCompleteOption} option  -The selected autocomplete option.
     * @return {AutoCompleteOption}
     * @memberof MultiSelectAutocompleteComponent
     */
    onChange(option: any): AutoCompleteOption;
    /**
     * Clears the typeahead search text from both the reactive form control and the
     * native input element without touching the selected chips. Uses
     * `emitEvent: false` so the valueChanges search stream is not re-triggered.
     * @memberof MultiSelectAutocompleteComponent
     */
    private clearSearchInput;
    /**
     * Fires when focus leaves the search input (click outside / tab away). If text
     * was typed but never committed as a chip (i.e. nothing was picked from the
     * dropdown), clear it so stale search text is not left behind. Deferred with a
     * short timeout so that if the blur was caused by clicking a dropdown option,
     * onChange commits the selection first (and has already cleared the text),
     * making this a no-op in that case. Clicking back into the same field does not
     * blur it, so the text is preserved while the user is still editing.
     * @memberof MultiSelectAutocompleteComponent
     */
    onInputBlur(): void;
    /**
     * Formats the selected options and emits the multiSelectAutoCompleteOptionSelected event.
     * @param {SelectOption[]} selectedOptions -Array of selected options.
     * @memberof MultiSelectAutocompleteComponent
     */
    formatSelectedOption(selectedOptions: SelectOption[]): void;
    /**
     * Displays the name of the option
     * @param {AutoCompleteOption} option
     * @return {*}  {string}
     * @memberof MultiSelectAutocompleteComponent
     */
    displayOptionName(option: AutoCompleteOption): string;
    /**
     * Tracks the option by its index or id.
     * @param {number} index
     * @param {SelectOption} option
     * @return {*}  {(number | string)}
     * @memberof MultiSelectAutocompleteComponent
     */
    trackByFn(index: number, option: SelectOption): number | string;
    /**
     * Checks if the checkbox is selected.
     * @param {AutoCompleteOption} option
     * @return {*}  {boolean}
     * @memberof MultiSelectAutocompleteComponent
     */
    isCheckboxSelected(option: AutoCompleteOption): boolean;
    /**
     * Clears all selected options.
     * @memberof MultiSelectAutocompleteComponent
     */
    clearSelections(): void;
    /**
     * Implementation of ngOnDestroy lifecycle hook method to unsubscribe the open observable subscriptions.
     * @memberof MultiSelectAutocompleteComponent
     */
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<MultiSelectAutocompleteComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<MultiSelectAutocompleteComponent, "ieeesa-multi-select-autocomplete", never, { "multiSelectAutoCompleteOptions": { "alias": "multiSelectAutoCompleteOptions"; "required": false; }; }, { "multiSelectAutoCompleteSearchValue": "multiSelectAutoCompleteSearchValue"; "multiSelectAutoCompleteClearSearchValue": "multiSelectAutoCompleteClearSearchValue"; "multiSelectAutoCompleteOptionsSelected": "multiSelectAutoCompleteOptionsSelected"; }, never, never, true, never>;
}