import { ElementRef, EventEmitter, OnDestroy, OnInit, QueryList } from '@angular/core';
import { FormControl } from '@angular/forms';
import { Observable } from 'rxjs';
export declare class TypeaheadComponent implements OnInit, OnDestroy {
    /**
     * Function that will be executed to filter the results shown in the typeahead
     */
    filterFn: (filterTerm: string) => string[] | Observable<string[]>;
    /**
     * Model that will track the contents of the input field
     *
     * @deprecated
     * - Use the `value` input property instead to set the `value`
     * - Use the `valueChanged` output or `value` input property to retrieve the current value
     */
    FormControl: FormControl;
    /**
     * The value of the textinput
     */
    get value(): string;
    set value(value: string);
    /**
     * The text content of the label for the input box
     */
    label: string;
    /**
     * The placeholder text for the input field
     */
    placeholder: string;
    /**
     * Optional property to show results when input box is initally focused
     */
    showResultsOnInitialFocus: boolean;
    /**
     * Event that is fired whenever the value of the typeahead changes
     * e.g. selection from the dropdown or manually typed entry
     */
    valueChanged: EventEmitter<string>;
    /**
     * A reference to the typeahead list wrapper
     */
    listContainer: ElementRef;
    /**
     * A reference to the typeahead list items
     */
    listItems: QueryList<ElementRef>;
    filterResult: string[];
    selectedItemIndex: number;
    isFocused: boolean;
    isSilenced: boolean;
    isDebounced: boolean;
    isAlternateStatusSection: boolean;
    statusText: string;
    id: string;
    hintId: string;
    listId: string;
    private originalSearch;
    private hasBeenFocusedAtLeastOnce;
    private subscription;
    private searchTextChanged$;
    private selectedOption;
    /**
     * Optional function that will be executed when the user selects an item from the typeahead
     */
    selectionAction: (selectedItemText: any) => unknown;
    ngOnInit(): void;
    ngOnDestroy(): void;
    focusIn(): void;
    focusOut(): void;
    textChanged: (value: string) => void;
    keyPressed: (event: KeyboardEvent) => void;
    itemSelected: (value: string) => void;
    performFilter(value: string): void;
    selectCurrentItem(): void;
    itemHovered(index: number): void;
    setStatusText: (text: string) => void;
    /**
     * Status text to be read out by screen readers
     */
    getStatusText: () => Observable<string>;
    /**
     * Check if the selected option is in view, and scroll if not
     */
    updateScroll(): void;
    private navigateSuggestions;
}