import { FocusKeyManager } from '@angular/cdk/a11y';
import { AfterViewInit, ChangeDetectorRef, ElementRef, OnDestroy, QueryList } from '@angular/core';
import { Observable, Subject } from 'rxjs';
import { RealsoftChip } from './chip';
import { RealsoftChipAction } from './chip-avatar';
import { RealsoftChipEvent } from './models';
import * as i0 from "@angular/core";
export declare class RealsoftChipSet implements AfterViewInit, OnDestroy {
    protected _elementRef: ElementRef<HTMLElement>;
    protected _changeDetectorRef: ChangeDetectorRef;
    private _dir;
    private _lastDestroyedFocusedChipIndex;
    protected _keyManager: FocusKeyManager<RealsoftChipAction>;
    protected _destroyed: Subject<void>;
    protected _defaultRole: string;
    protected _disabled: boolean;
    private _explicitRole;
    _chipActions: QueryList<RealsoftChipAction>;
    get chipFocusChanges(): Observable<RealsoftChipEvent>;
    get chipDestroyedChanges(): Observable<RealsoftChipEvent>;
    get chipRemovedChanges(): Observable<RealsoftChipEvent>;
    get disabled(): boolean;
    set disabled(value: boolean);
    /** Whether the chip list contains chips or not. */
    get empty(): boolean;
    /** The ARIA role applied to the chip set. */
    get role(): string | null;
    tabIndex: number;
    set role(value: string | null);
    get focused(): boolean;
    _chips: QueryList<RealsoftChip>;
    constructor(...args: unknown[]);
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    protected _hasFocusedChip(): boolean;
    protected _syncChipsState(): void;
    focus(): void;
    _handleKeydown(event: KeyboardEvent): void;
    protected _isValidIndex(index: number): boolean;
    protected _allowFocusEscape(): void;
    protected _getChipStream<T, C extends RealsoftChip = RealsoftChip>(mappingFunction: (chip: C) => Observable<T>): Observable<T>;
    protected _originatesFromChip(event: Event): boolean;
    private _setUpFocusManagement;
    protected _skipPredicate(action: RealsoftChipAction): boolean;
    private _trackChipSetChanges;
    private _trackDestroyedFocusedChip;
    private _redirectDestroyedChipFocus;
    static ɵfac: i0.ɵɵFactoryDeclaration<RealsoftChipSet, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<RealsoftChipSet, "realsoft-chip-set", never, { "disabled": { "alias": "disabled"; "required": false; }; "role": { "alias": "role"; "required": false; }; "tabIndex": { "alias": "tabIndex"; "required": false; }; }, {}, ["_chips"], ["*"], true, never>;
    static ngAcceptInputType_disabled: unknown;
    static ngAcceptInputType_tabIndex: unknown;
}