/**
 *
 * carbon-angular v0.0.0 | tab-headers-vertical.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, AfterContentInit, ElementRef, OnChanges, SimpleChanges, OnDestroy, OnInit, ChangeDetectorRef, Renderer2 } from "@angular/core";
import { EventService } from "carbon-components-angular/utils";
import { I18n } from "carbon-components-angular/i18n";
import { BaseTabHeader } from "./base-tab-header.component";
import { Tab } from "./tab.component";
import * as i0 from "@angular/core";
/**
 * The `TabHeadersVertical` component renders tab headers in a vertical
 * orientation. It contains the `Tab` items and supports keyboard navigation
 * via ArrowUp/ArrowDown/Home/End.
 */
export declare class TabHeadersVertical extends BaseTabHeader implements AfterContentInit, OnChanges, OnDestroy, OnInit {
    protected elementRef: ElementRef;
    protected changeDetectorRef: ChangeDetectorRef;
    protected eventService: EventService;
    protected renderer: Renderer2;
    protected i18n: I18n;
    /**
     * List of `Tab` components.
     */
    tabInput: QueryList<Tab>;
    /**
     * i18n strings for the tab list `aria-label` fallback.
     */
    translations: any;
    verticalClass: boolean;
    headerContainer: ElementRef<HTMLElement>;
    /**
     * ContentChild of all the tabs
     */
    tabQuery: QueryList<Tab>;
    tabs: QueryList<Tab>;
    allTabHeaders: QueryList<ElementRef>;
    /**
     * Focused tab index when `followFocus` is false (manual activation)
     */
    activeIndex: number | null;
    /**
     * Whether the tab list is overflowing at the top (some tabs are clipped).
     */
    isOverflowingTop: boolean;
    /**
     * Whether the tab list is overflowing at the bottom (some tabs are clipped).
     */
    isOverflowingBottom: boolean;
    private resizeObserver;
    constructor(elementRef: ElementRef, changeDetectorRef: ChangeDetectorRef, eventService: EventService, renderer: Renderer2, i18n: I18n);
    keyboardInput(event: KeyboardEvent): void;
    handleBlur(event: FocusEvent): void;
    ngOnInit(): void;
    ngOnDestroy(): void;
    ngAfterContentInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    onTabFocus(index: number): void;
    selectTab(tab: Tab, tabIndex: number): void;
    getSelectedTab(): any;
    protected updateOverflowState(): void;
    protected scrollSelectedTabIntoView(): void;
    protected setFirstTab(): void;
    private listScrollHandler;
    static ɵfac: i0.ɵɵFactoryDeclaration<TabHeadersVertical, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<TabHeadersVertical, "cds-tab-headers-vertical, ibm-tab-headers-vertical", never, { "tabInput": "tabs"; "translations": "translations"; }, {}, ["tabQuery"], never, false>;
}