import { BooleanInput } from '@angular/cdk/coercion';
import { ChangeDetectorRef, ElementRef, EventEmitter, OnInit, QueryList } from '@angular/core';
import { ControlValueAccessor } from '@angular/forms';
import { MatOption } from '@angular/material/core';
import { MatSelect } from '@angular/material/select';
import { CanDestroyNotify, CanDestroyNotifyCtor } from '@mtna/lib-ui';
import * as i0 from "@angular/core";
declare class SelectSearchBase {
}
export declare const _SelectSearchMixinBase: CanDestroyNotifyCtor & typeof SelectSearchBase;
export declare class MtnaSelectSearchComponent extends _SelectSearchMixinBase implements CanDestroyNotify, ControlValueAccessor, OnInit {
    matSelect: MatSelect;
    private changeDetectorRef;
    static ngAcceptInputType_noResultsFound: BooleanInput;
    /** Reference to the search input field */
    searchSelectInput?: ElementRef;
    /** Label to be shown when no entries are found. Set to null if no message should be shown. Defaults to 'No Options Found' */
    noResultsFoundLabel: string;
    /** Whether no results have been found. Only necessary when using virtual scroll */
    get noResultsFound(): boolean;
    set noResultsFound(value: boolean);
    private _noResultsFound;
    /** Placeholder label for search input, defaults to 'Search' */
    placeholderLabel: string;
    /** Resets the input value on mat-select close. Defaults to true */
    resetOnClose: boolean;
    /** Sets the aria-label value for the input, defaults to 'Search'. */
    selectSearchAriaLabel: string;
    /** Search text value change */
    search: EventEmitter<string>;
    /** Current search value */
    get value(): string;
    private _value;
    /** Previously selected values when using <mat-select [multiple]="true">*/
    previousSelectedValues: unknown[];
    /** Reference to the MatSelect options */
    _options?: QueryList<MatOption>;
    onChange: (value: unknown) => void;
    onTouched: (value?: unknown) => void;
    constructor(matSelect: MatSelect, changeDetectorRef: ChangeDetectorRef);
    ngOnInit(): void;
    /**
     * Initializes handling <mat-select [multiple]="true">
     * Note: to improve this code, mat-select should be extended to allow disabling resetting the selection while filtering.
     */
    initMultipleHandling(): void;
    onInputChange(value: string): void;
    onBlur(value: string): void;
    registerOnChange(fn: (value: unknown) => void): void;
    registerOnTouched(fn: () => void): void;
    writeValue(value: string): void;
    /** Focuses the search input field */
    _focus(): void;
    /** Handles the key down event with MatSelect.
     * Allows e.g. selecting with enter key, navigation with arrow keys, etc.
     * @param event */
    _handleKeydown(event: KeyboardEvent): void;
    /** Resets the current search value
     * @param focus whether to focus after resetting */
    _reset(focus?: boolean): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<MtnaSelectSearchComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<MtnaSelectSearchComponent, "mtna-select-search", never, { "noResultsFoundLabel": "noResultsFoundLabel"; "noResultsFound": "noResultsFound"; "placeholderLabel": "placeholderLabel"; "resetOnClose": "resetOnClose"; "selectSearchAriaLabel": "selectSearchAriaLabel"; }, { "search": "search"; }, never, never>;
}
export {};