import { Component, ContextType, CSSProperties, ReactNode, ReactChild, MouseEvent } from 'react';
import { MenuItemProps } from './menu-item';
import { MenuPopper, MenuPopperProps } from './menu-popper';
import { MenuContext } from './menu-context';
import { MenuItemId, SubmenuType } from './common';
export interface MenuSubmenuProps extends Pick<MenuItemProps, 'icon' | 'prefix' | 'suffix' | 'title'> {
    /**
     * 自定义 class
     */
    className?: string;
    /**
     * 自定义 style
     */
    style?: CSSProperties;
    /**
     * 子菜单类型
     */
    type?: SubmenuType;
    /**
     * 唯一标识
     */
    id?: MenuItemId;
    /**
     * 是否选中控制值
     *
     * 如不控制，则以是否在 context.selectedIds 进行判断是否选中
     */
    selected?: boolean;
    /**
     * 是否展开控制值
     *
     * 如不控制，则以是否在 context.expandedIds 进行判断是否展开
     */
    expanded?: boolean;
    /**
     * 菜单项元素
     */
    itemContent?: ReactNode;
    /**
     * popper menu 触发类型
     */
    popperTriggerType?: 'hover' | 'click';
    /**
     * popper menu 位置
     */
    popperPlacement?: MenuPopperProps['placement'];
    /**
     * 点击回调
     */
    onClick?: (e: MouseEvent) => void;
    /**
     * 是否可以选择，即点击是否有进行 MenuItem 的 select 行为
     */
    selectable?: boolean;
    /**
     * 禁用 menu popper 的 popup portal
     *
     * 详见 [Popup](/components/popup)
     */
    disablePortal?: MenuPopperProps['disablePortal'];
    /**
     * 指定 menu popper 的 popup portal
     *
     * 详见 [Popup](/components/popup)
     */
    portalContainer?: MenuPopperProps['portalContainer'];
}
export declare class Submenu extends Component<MenuSubmenuProps> {
    static displayName: string;
    static defaultProps: {
        className: string;
        disabled: boolean;
    };
    static contextType: import("react").Context<import("./menu-context").MenuContextValue>;
    _id: string;
    context: ContextType<typeof MenuContext>;
    refMenuPopper: import("react").RefObject<MenuPopper>;
    refMenuArrow: import("react").RefObject<HTMLElement>;
    get id(): MenuItemId;
    get layout(): import("./common").MenuLayout | undefined;
    get isLayoutHorizontal(): boolean;
    get popperMenuPlacement(): MenuPopperProps['placement'];
    get isExpanded(): boolean;
    get isSelected(): boolean;
    get hasDescendantSelected(): boolean;
    get mustBePopper(): boolean;
    get isTypePopper(): boolean;
    get menuPopperSize(): "md" | "lg" | undefined;
    get isSelectable(): boolean;
    get type(): "group" | "folder" | "popper";
    get popperTriggerType(): "click" | "hover";
    get submenuSize(): "md" | "lg" | undefined;
    get submenuRefMenuPopper(): import("react").RefObject<MenuPopper> | undefined;
    handleClickItemContent: (e: MouseEvent) => void;
    renderMenuArrow: () => import("react/jsx-runtime").JSX.Element | null;
    renderPrefix: () => import("react/jsx-runtime").JSX.Element | null;
    renderMenuItem: (submenu: ReactChild | null) => import("react/jsx-runtime").JSX.Element;
    renderSubmenuMenu: () => import("react/jsx-runtime").JSX.Element;
    renderSubmenu: () => import("react/jsx-runtime").JSX.Element;
    render(): import("react/jsx-runtime").JSX.Element;
}