/**
 *
 * carbon-angular v0.0.0 | tab-header-group.component.d.ts
 *
 * Copyright 2014, 2020 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, OnDestroy, AfterContentInit, ElementRef, TemplateRef, OnChanges, SimpleChanges } from "@angular/core";
import { TabHeader } from "./tab-header.component";
import { Subscription } from "rxjs";
export declare class TabHeaderGroup implements AfterContentInit, OnDestroy, OnChanges {
    protected elementRef: ElementRef;
    /**
     * Set to 'true' to have tabs automatically activated and have their content displayed when they receive focus.
     */
    followFocus: boolean;
    /**
     * Set to `true` to put tabs in a loading state.
     */
    skeleton: boolean;
    /**
     * Sets the aria label on the nav element.
     */
    ariaLabel: string;
    /**
     * Sets the aria labelledby on the nav element.
     */
    ariaLabelledby: string;
    contentAfter: TemplateRef<any>;
    contentBefore: TemplateRef<any>;
    /**
     * Set to 'true' to have all pane references associated with each tab header
     * in the tab header group cached and not reloaded on tab switching.
     */
    cacheActive: boolean;
    /**
     * ContentChildren of all the tabHeaders.
     */
    tabHeaderQuery: QueryList<TabHeader>;
    /**
     * Keeps track of all the subscriptions to the tab header selection events.
     */
    selectedSubscriptionTracker: Subscription;
    tabListVisible: boolean;
    /**
     * Controls the manual focusing done by tabbing through headings.
     */
    currentSelectedIndex: number;
    private _cacheActive;
    constructor(elementRef: ElementRef);
    /**
     * Controls the keydown events used for tabbing through the headings.
     */
    keyboardInput(event: any): void;
    focusOut(event: any): void;
    ngAfterContentInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    getSelectedTab(): any;
    showTabList(): void;
    onDropdownKeydown(event: KeyboardEvent): void;
    tabDropdownKeydown(event: KeyboardEvent): void;
    ngOnDestroy(): void;
}
