import { AfterViewInit, OnChanges, SimpleChanges } from '@angular/core';
import { NzMenuItemComponent } from './nz-menu-item.component';
import { NzSubMenuComponent } from './nz-submenu.component';
export declare type NzMode = 'vertical' | 'horizontal' | 'inline';
export declare class NzMenuComponent implements OnChanges, AfterViewInit {
    private _clickActive;
    private _inlineCollapsed;
    /** set when has submenu component */
    hasSubMenu: boolean;
    /** set when in dropdown component */
    isInDropDown: boolean;
    /** collection of menu item */
    menuItems: NzMenuItemComponent[];
    /** collection of sub menu */
    subMenus: NzSubMenuComponent[];
    /** view init flat */
    isInit: boolean;
    /** temporary mode */
    _tempMode: NzMode;
    /** opened index of array */
    _subMenusOpenIndex: any[];
    nzMode: NzMode;
    nzTheme: 'light' | 'dark';
    nzClickActive: boolean;
    nzInlineCollapsed: boolean;
    /** define host class */
    readonly _isInDropDownClass: boolean;
    readonly _isNotInDropDownClass: boolean;
    readonly setDropDownThemeLightClass: boolean;
    readonly setDropDownThemeDarkClass: boolean;
    readonly setMenuThemeLightClass: boolean;
    readonly setMenuThemeDarkClass: boolean;
    readonly setMenuVerticalClass: boolean;
    readonly setMenuHorizontalClass: boolean;
    readonly setMenuInlineClass: boolean;
    readonly setMenuInlineCollapsedClass: boolean;
    ngOnChanges(changes: SimpleChanges): void;
    ngAfterViewInit(): void;
    /** trigger when menu item clicked */
    clearAllSelected(): void;
    hideSubMenus(): void;
    reductionSubMenus(): void;
    /** api for dropdown or navigation to set isInDropDown status */
    setDropDown(value: boolean): void;
    setHasSubMenu(value: boolean): void;
}