import { ChangeDetectorRef, ElementRef, EventEmitter, OnChanges, OnInit, Renderer2, SimpleChanges } from "@angular/core";
import { SpsActionDescriptor, SpsOptionListOption } from "@spscommerce/ds-shared";
import { Position, PositionAnchor } from "@spscommerce/positioning";
import { Eventually } from "@spscommerce/utils";
import { Observable } from "rxjs";
export declare class SpsOptionListComponent<T> implements OnChanges, OnInit {
    private changeDetector;
    private elementRef;
    private renderer;
    private static _idNum;
    private _positioningService;
    id: string;
    options: Eventually<Iterable<T>> | Observable<Iterable<T>> | ((filter?: string) => Eventually<Iterable<T>> | Observable<Iterable<T>>);
    textKey: string;
    captionKey: string;
    zeroState: string;
    hideInlineSearch: boolean;
    searchPlaceholder: string;
    selectedOption: T;
    attachTo: HTMLElement;
    conformWidth: boolean;
    alignLeft: boolean;
    searchDebounce: number;
    role: string;
    offsets: [number, number];
    zIndex: number;
    ariaLabelledBy: string;
    _nullOptionOption: SpsOptionListOption<null>;
    nullOption: string;
    _specialActionOption: SpsOptionListOption<SpsActionDescriptor>;
    specialAction: SpsActionDescriptor;
    private _search;
    _searchReplacementPattern: RegExp;
    search: string;
    searchChange: EventEmitter<string>;
    optionSelected: EventEmitter<T>;
    readonly spsOptionListClass = true;
    readonly zStratumDropdownClass = true;
    readonly roleAttr = "menu";
    private _isOpen;
    readonly isOpen: boolean;
    private _opensUpward;
    opensUpward: boolean;
    isAsync: boolean;
    readonly _ariaActiveDescendentAttr: string;
    readonly hasVisibleSpecialAction: boolean;
    searchInput: ElementRef;
    private _optionElements;
    private _ignoreIntersections;
    _optionList: ReadonlyArray<SpsOptionListOption<T>>;
    _highlightedOptionIndex: number;
    readonly highlightedOption: SpsOptionListOption<SpsActionDescriptor> | SpsOptionListOption<T>;
    readonly anyOptionHasIcon: boolean;
    readonly isEmpty: boolean;
    readonly pending: any;
    readonly _positioningOptions: {
        relativeTo: HTMLElement;
        useRelativeTargetWidth: boolean;
        position: Position;
        anchor: PositionAnchor;
        offsets: [number, number];
        zIndex: number;
    };
    constructor(changeDetector: ChangeDetectorRef, elementRef: ElementRef, renderer: Renderer2);
    ngOnInit(): void;
    open(): void;
    close(): void;
    toggle(): void;
    selectOption(option?: SpsOptionListOption<T | SpsActionDescriptor>): void;
    private _autoScrollIfNeeded;
    _resetHighlight(): void;
    _onKeyDown(event: KeyboardEvent): void;
    ngOnChanges(changes: SimpleChanges): void;
    private _onViewportIntersection;
    private _onElementIntersection;
    _onSearchClearClick(event: MouseEvent): void;
    private _updateOptions;
}