/**
 *
 * carbon-angular v0.0.0 | tab-header-group.component.d.ts
 *
 * Copyright 2014, 2026 IBM
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


import { QueryList, EventEmitter, AfterContentInit, ElementRef, OnChanges, SimpleChanges, ChangeDetectorRef, OnInit, OnDestroy, Renderer2 } from "@angular/core";
import { Subscription } from "rxjs";
import { EventService } from "carbon-components-angular/utils";
import { I18n } from "carbon-components-angular/i18n";
import { TabHeaderBase } from "./tab-header.directive";
import { BaseTabHeader } from "./base-tab-header.component";
import * as i0 from "@angular/core";
export declare class TabHeaderGroup extends BaseTabHeader implements AfterContentInit, OnChanges, OnInit, OnDestroy {
    protected elementRef: ElementRef;
    protected changeDetectorRef: ChangeDetectorRef;
    protected eventService: EventService;
    protected renderer: Renderer2;
    protected i18n: I18n;
    get fullWidthClass(): boolean;
    /**
     * We use taller rows when any header has a secondary label.
     */
    get tallClass(): boolean;
    get hasSecondaryLabelTabs(): boolean;
    /**
     * True when `fullWidth` applies (contained, fewer than 9 headers).
     */
    get distributeWidth(): boolean;
    /**
     * i18n strings for overflow controls and the tab list `aria-label` fallback.
     */
    translations: any;
    /**
     * When `true`, sets each tab panel `tabindex` to `-1` for navigation-style usage.
     */
    isNavigation: boolean;
    /**
     * Emits when a tab close control is used (with `dismissable`).
     * The emitted value is the tab index.
     */
    tabClose: EventEmitter<number>;
    /**
     * Projected tab headers (`TabHeaderBase`: directive or `cds-tab-header`).
     */
    tabHeaderQuery: QueryList<TabHeaderBase>;
    headerContainer: any;
    selectedSubscriptionTracker: Subscription;
    closeSubscriptionTracker: Subscription;
    /**
     * Index of the selected tab for keyboard logic.
     */
    currentSelectedTab: number;
    /**
     * Focused tab index when `followFocus` is false (manual activation).
     */
    activeIndex: number | null;
    constructor(elementRef: ElementRef, changeDetectorRef: ChangeDetectorRef, eventService: EventService, renderer: Renderer2, i18n: I18n);
    keyboardInput(event: any): void;
    ngOnInit(): void;
    ngAfterContentInit(): void;
    ngOnDestroy(): void;
    ngOnChanges(changes: SimpleChanges): void;
    getSelectedTab(): any;
    /**
     * Determines which `Tab` is initially selected.
     */
    protected setFirstTab(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TabHeaderGroup, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<TabHeaderGroup, "cds-tab-header-group, ibm-tab-header-group", never, { "translations": "translations"; "isNavigation": "isNavigation"; }, { "tabClose": "tabClose"; }, ["tabHeaderQuery"], ["*"], false>;
}