import { AfterContentInit, ChangeDetectorRef, ElementRef, EventEmitter, OnDestroy, QueryList, Renderer2, TemplateRef } from '@angular/core';
import { ControlValueAccessor } from '@angular/forms';
import { FormItemComponent } from '../form-item/form-item.component';
import { ListItemDeprecatedComponent } from '../list-item-deprecated/list-item-deprecated.component';
import { AutocompleteOption } from './autocomplete.model';
import * as i0 from "@angular/core";
export declare class AutocompleteComponent extends FormItemComponent implements ControlValueAccessor, AfterContentInit, OnDestroy {
    private renderer;
    private elementRef;
    private cdr;
    private _document;
    private readonly INPUT_BORDER_IN_PX;
    private readonly LIST_OFFSET_IN_PX;
    /**
     * @ignore
     */
    private unsubscribe;
    /**
     * @ignore
     */
    private _parentElement;
    /**
     * @ignore
     */
    private _onChange;
    /**
     * @ignore
     */
    protected _onTouched: () => void;
    /**
     * @ignore
     */
    private clickListenerDisposeFct?;
    /**
     * @ignore
     */
    private scrollListenerDisposeFct?;
    /**
     * Bandaid hack to prevent a weird focusout event bug happening when
     * `appendTo` is set and an item is selected. For *some* reason, the focusout
     * event is triggered multiple times when opening the list, which causes
     * unexpected behavior.
     *
     * This variable allows to temporarily "disables" the `handleFocusout` handler.
     *
     * FIXME: Find an actual solution to this problem instead of a bandaid hack.
     * @ignore
     */
    private ignoreFocusout;
    /**
     * @ignore
     */
    isOpen: boolean;
    /**
     * @ignore
     */
    isFiltered: boolean;
    /**
     * @ignore
     */
    selectedValue?: AutocompleteOption;
    /**
     * @ignore
     */
    filteredData?: AutocompleteOption[];
    /**
     * Input search text
     * @ignore
     */
    searchText?: string;
    /**
     * Index of currently selected suggestion. -1 if no suggestion is currently selected
     * @ignore
     */
    focusIndex: number;
    protected activeIndex: number;
    /**
     * Id of currently selected item. Null if no suggestion is currently selected
     * @ignore
     */
    protected focusedItemId?: string | null;
    /**
     * Live zone content. It will be announced by assistive technologies everytime it is changed.
     * @ignore
     */
    liveZoneContent: string;
    /**
     * Dropdown icon name
     */
    iconName: string;
    /**
     * Whether to show number of results or no
     */
    showNumberOfResults: boolean;
    /**
     * No results message to display
     */
    noResultMessage: string;
    /**
     * Result message, formatted like `{numberOfResults} {resultsNumberMessage}`
     */
    resultsNumberMessage: string;
    /**
     * Whether to show number of results or no
     */
    showNoResultsMessage: boolean;
    /**
     * Limit of results to show on search
     */
    searchLimit?: number;
    /**
     * Selector that points to dom node where the list should be rendered
     */
    appendTo?: string;
    /**
     * Track by Function
     */
    trackByFn?: (index: number, option: AutocompleteOption) => any;
    /**
     * @ignore
     */
    _data?: AutocompleteOption[];
    /**
     * Autocomplete data
     */
    set data(value: AutocompleteOption[]);
    get data(): AutocompleteOption[];
    /**
     * Suggestion list text alternative for assistive technologies.
     */
    listLabel?: string;
    /**
     * Instructions on how to navigate the list. It is append after the input label.
     * @example "Use the UP / DOWN arrows to navigate within the suggestion list. Press Enter to select an option. On touch devices, use swipe to navigate and double tap to select an option"
     */
    inputInstructions?: string;
    /**
     * Emits value of searched value on input type
     */
    inputValueChange: EventEmitter<string>;
    /**
     * @ignore
     */
    inputRef?: ElementRef;
    /**
     * @ignore
     */
    optionsList?: ElementRef;
    /**
     * Option items
     * @ignore
     */
    selectOptions?: QueryList<ListItemDeprecatedComponent>;
    /**
     * @ignore
     */
    optionLabelTemplate?: TemplateRef<any>;
    /**
     * @ignore
     */
    searchResultsTemplate?: TemplateRef<any>;
    /**
     * @ignore
     */
    noResultTemplate?: TemplateRef<any>;
    constructor(renderer: Renderer2, elementRef: ElementRef<HTMLElement>, cdr: ChangeDetectorRef, _document: Document);
    /**
     * @ignore
     */
    ngAfterContentInit(): void;
    /**
     * @ignore
     */
    ngOnDestroy(): void;
    /**
     * Content of hint item and hidden.
     * @ignore
     */
    private createResultsMessageContent;
    /**
     * Update displayed suggestions and update live zone
     * @private
     */
    private updateList;
    private processActiveOption;
    get interactedItemIndex(): number;
    private scrollOnListOpening;
    private appendAndComputeListPosition;
    /**
     * @private
     */
    private computeListPosition;
    /**
     * @ignore
     */
    private removeAppendedElementFromParent;
    /**
     * @ignore
     */
    private initScrollListener;
    /**
     * @ignore
     */
    getAdditionalClass(): string;
    /**
     * Implemented as part of ControlValueAccessor.
     * @ignore
     */
    registerOnChange(fn: any): void;
    /**
     * Implemented as part of ControlValueAccessor.
     * @ignore
     */
    registerOnTouched(fn: any): void;
    /**
     * Implemented as part of ControlValueAccessor.
     * @ignore
     */
    setDisabledState(isDisabled: boolean): void;
    /**
     * Implemented as part of ControlValueAccessor.
     * @ignore
     */
    writeValue(value: AutocompleteOption): void;
    /** Open the suggestion list. */
    openList(): void;
    /** Close the suggestion list. */
    closeList(): void;
    /**
     * Toggle the suggestion list.
     * @ignore
     */
    handleInputClick(): void;
    /**
     * Handle input change and save searchText
     * @ignore
     */
    handleInputEvent(event: InputEvent): void;
    /**
     * @ignore
     */
    getItemId(index: number): string;
    /**
     * @ignore
     */
    getListId(): string;
    /**
     * @ignore
     */
    getInstructionsId(): string;
    /**
     * @ignore
     */
    private focusFocusedOption;
    /**
     * @ignore
     */
    private selectNextOption;
    /**
     * @ignore
     */
    private selectPreviousOption;
    /**
     * @ignore
     */
    private unselectOption;
    /**
     * @ignore
     */
    handleKeydownEvent(e: KeyboardEvent): void;
    /**
     * @ignore
     */
    private getMatchinOption;
    /**
     * @ignore
     */
    selectItem(option: AutocompleteOption): void;
    /**
     * Closes the suggestion list if the focus is moved outside of the autocomplete.
     * @ignore
     */
    handleFocusout(e: FocusEvent): void;
    handleClearClick(): void;
    /**
     * @ignore
     * @param index
     * @param option
     */
    trackByOption(index: number, option: AutocompleteOption): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<AutocompleteComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<AutocompleteComponent, "nj-autocomplete", never, { "iconName": { "alias": "iconName"; "required": false; }; "showNumberOfResults": { "alias": "showNumberOfResults"; "required": false; }; "noResultMessage": { "alias": "noResultMessage"; "required": false; }; "resultsNumberMessage": { "alias": "resultsNumberMessage"; "required": false; }; "showNoResultsMessage": { "alias": "showNoResultsMessage"; "required": false; }; "searchLimit": { "alias": "searchLimit"; "required": false; }; "appendTo": { "alias": "appendTo"; "required": false; }; "trackByFn": { "alias": "trackByFn"; "required": false; }; "data": { "alias": "data"; "required": false; }; "listLabel": { "alias": "listLabel"; "required": false; }; "inputInstructions": { "alias": "inputInstructions"; "required": false; }; }, { "inputValueChange": "inputValueChange"; }, ["optionLabelTemplate", "searchResultsTemplate", "noResultTemplate"], ["[njFormLabel]", "[njFormSubscript]", "[njAutocompleteAdditional]"], true, never>;
}