/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { ChangeDetectorRef, ElementRef, EventEmitter, OnDestroy, TemplateRef } from '@angular/core';
import { NzSafeAny } from 'ng-zorro-antd/core/types';
import { NzTabNavItemDirective } from './tab-nav-item.directive';
import * as i0 from "@angular/core";
export declare class NzTabNavOperationComponent implements OnDestroy {
    cdr: ChangeDetectorRef;
    private elementRef;
    items: NzTabNavItemDirective[];
    addable: boolean;
    addIcon: string | TemplateRef<NzSafeAny>;
    readonly addClicked: EventEmitter<void>;
    readonly selected: EventEmitter<NzTabNavItemDirective>;
    closeAnimationWaitTimeoutId?: ReturnType<typeof setTimeout>;
    menuOpened: boolean;
    private readonly element;
    constructor(cdr: ChangeDetectorRef, elementRef: ElementRef<HTMLElement>);
    onSelect(item: NzTabNavItemDirective): void;
    onContextmenu(item: NzTabNavItemDirective, e: MouseEvent): void;
    showItems(): void;
    menuVisChange(visible: boolean): void;
    getElementWidth(): number;
    getElementHeight(): number;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTabNavOperationComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTabNavOperationComponent, "nz-tab-nav-operation", ["nzTabNavOperation"], { "items": { "alias": "items"; "required": false; }; "addable": { "alias": "addable"; "required": false; }; "addIcon": { "alias": "addIcon"; "required": false; }; }, { "addClicked": "addClicked"; "selected": "selected"; }, never, never, true, never>;
    static ngAcceptInputType_addable: unknown;
}