/**
 * @license
 * Copyright 厦门乾元盛世科技有限公司 All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file.
 */
import { EventEmitter, ElementRef, Renderer } from '@angular/core';
import { OnInit, OnDestroy } from '@angular/core';
import { MenuItem } from './menu.item';
import { Menu } from './menu';
/**
 * 子菜单
 * 参考: https://github.com/react-component/menu
 */
export declare class SubMenu implements OnInit, OnDestroy {
    private renderer;
    private elementRef;
    private parentMenu;
    private submenu;
    isMenuItem: number;
    isSubMenu: number;
    /** 用户CSS样式 */
    class: string;
    eventKey: string;
    /** 模式的菜单缩进宽度，默认为24px */
    inlineIndent: number;
    disabled: boolean;
    open: boolean;
    defaultActiveFirst: boolean;
    /**
     * menuItem 被点击时的事件，参数为：({ item, key })
     */
    titleClick: EventEmitter<{
        key: string;
        domEvent: Event;
    }>;
    /**
     * menuItem 事件，参数为：({ item, key })
     */
    titleMouseEnter: EventEmitter<{
        key: string;
        domEvent: Event;
    }>;
    /**
     * menuItem 事件，参数为：({ item, key })
     */
    titleMouseLeave: EventEmitter<{
        key: string;
        domEvent: Event;
    }>;
    level: number;
    protected instanceArray: Array<MenuItem>;
    /**
     * 鼠标移出的一定时间后(如100毫秒)，再执行隐藏子菜单的操作
     */
    private mouseLeaveTimer;
    private mouseLeaveTitleTimer;
    constructor(renderer: Renderer, elementRef: ElementRef, parentMenu: Menu, submenu: SubMenu);
    readonly active: boolean;
    readonly mode: string;
    readonly openSubMenuOnMouseEnter: boolean;
    readonly closeSubMenuOnMouseLeave: boolean;
    /** 样式前缀 */
    readonly prefixCls: string;
    ngOnInit(): void;
    ngOnDestroy(): void;
    /**
     * 菜单样式
     */
    readonly classes: string;
    readonly titlePaddingLeft: string;
    readonly expanded: boolean;
    /**
     * 菜单样式
     */
    readonly titleClasses: string;
    readonly subClasses: string;
    /**
     * The underlying host native element
     */
    getHostElement(): HTMLElement;
    onKeyDown(event: KeyboardEvent): void;
    onMouseEnter(event: MouseEvent): void;
    onMouseLeave(event: MouseEvent): void;
    onTitleMouseEnter(event: Event): void;
    onTitleMouseLeave(event: Event): void;
    onTitleClick(event: Event): void;
    getKeyPath(): string[];
    triggerOpenChange(open: boolean, type?: string): void;
    isChildrenSelected(): boolean;
    isOpen(): boolean;
    registerItem(item: MenuItem): void;
    clearMouseLeaveTimer(): void;
    clearMouseLeaveSubMenuTimer(): void;
    clearMouseLeaveTitleTimer(): void;
}