ant-design/components/menu/menu.tsx

import type { MenuProps as RcMenuProps, MenuRef as RcMenuRef } from 'rc-menu';
import RcMenu from 'rc-menu';
import * as React from 'react';
import { forwardRef } from 'react';
import omit from 'rc-util/lib/omit';
import useEvent from 'rc-util/lib/hooks/useEvent';
import classNames from 'classnames';
import EllipsisOutlined from '@ant-design/icons/EllipsisOutlined';
import warning from '../_util/warning';
import initCollapseMotion from '../_util/motion';
import { cloneElement } from '../_util/reactNode';
import type { SiderContextProps } from '../layout/Sider';
import { ConfigContext } from '../config-provider';
import useStyle from './style';
import OverrideContext from './OverrideContext';
import useItems from './hooks/useItems';
import type { ItemType } from './hooks/useItems';
import MenuContext from './MenuContext';
import type { MenuTheme, MenuContextProps } from './MenuContext';

export interface MenuProps extends Omit<RcMenuProps, 'items'> {
  theme?: MenuTheme;
  inlineIndent?: number;

  // >>>>> Private
  /**
   * @private Internal Usage. Not promise crash if used in production. Connect with chenshuai2144
   *   for removing.
   */
  _internalDisableMenuItemTitleTooltip?: boolean;

  items?: ItemType[];
}

type InternalMenuProps = MenuProps &
  SiderContextProps & {
    collapsedWidth?: string | number;
  };

const InternalMenu = forwardRef<RcMenuRef, InternalMenuProps>((props, ref) => {
  const override = React.useContext(OverrideContext);
  const overrideObj = override || {};

  const { getPrefixCls, getPopupContainer, direction } = React.useContext(ConfigContext);

  const rootPrefixCls = getPrefixCls();

  const {
    prefixCls: customizePrefixCls,
    className,
    theme = 'light',
    expandIcon,
    _internalDisableMenuItemTitleTooltip,
    inlineCollapsed,
    siderCollapsed,
    items,
    children,
    rootClassName,
    mode,
    selectable,
    onClick,
    ...restProps
  } = props;

  const passedProps = omit(restProps, ['collapsedWidth']);

  // ========================= Items ===========================
  const mergedChildren = useItems(items) || children;

  // ======================== Warning ==========================
  warning(
    !('inlineCollapsed' in props && mode !== 'inline'),
    'Menu',
    '`inlineCollapsed` should only be used when `mode` is inline.',
  );

  warning(
    !(props.siderCollapsed !== undefined && 'inlineCollapsed' in props),
    'Menu',
    '`inlineCollapsed` not control Menu under Sider. Should set `collapsed` on Sider instead.',
  );

  warning(
    'items' in props && !children,
    'Menu',
    '`children` will be removed in next major version. Please use `items` instead.',
  );

  overrideObj.validator?.({ mode });

  // ========================== Click ==========================
  // Tell dropdown that item clicked
  const onItemClick = useEvent<Required<MenuProps>['onClick']>((...args) => {
    onClick?.(...args);
    overrideObj.onClick?.();
  });

  // ========================== Mode ===========================
  const mergedMode = overrideObj.mode || mode;

  // ======================= Selectable ========================
  const mergedSelectable = selectable ?? overrideObj.selectable;

  // ======================== Collapsed ========================
  // Inline Collapsed
  const mergedInlineCollapsed = React.useMemo(() => {
    if (siderCollapsed !== undefined) {
      return siderCollapsed;
    }
    return inlineCollapsed;
  }, [inlineCollapsed, siderCollapsed]);

  const defaultMotions = {
    horizontal: { motionName: `${rootPrefixCls}-slide-up` },
    inline: initCollapseMotion(rootPrefixCls),
    other: { motionName: `${rootPrefixCls}-zoom-big` },
  };

  const prefixCls = getPrefixCls('menu', customizePrefixCls || overrideObj.prefixCls);
  const [wrapSSR, hashId] = useStyle(prefixCls, !override);
  const menuClassName = classNames(`${prefixCls}-${theme}`, className);

  // ====================== Expand Icon ========================
  let mergedExpandIcon: MenuProps[`expandIcon`];
  if (typeof expandIcon === 'function') {
    mergedExpandIcon = expandIcon;
  } else {
    mergedExpandIcon = cloneElement(expandIcon || overrideObj.expandIcon, {
      className: `${prefixCls}-submenu-expand-icon`,
    });
  }

  // ======================== Context ==========================
  const contextValue = React.useMemo<MenuContextProps>(
    () => ({
      prefixCls,
      inlineCollapsed: mergedInlineCollapsed || false,
      direction,
      firstLevel: true,
      theme,
      mode: mergedMode,
      disableMenuItemTitleTooltip: _internalDisableMenuItemTitleTooltip,
    }),
    [prefixCls, mergedInlineCollapsed, direction, _internalDisableMenuItemTitleTooltip, theme],
  );

  // ========================= Render ==========================
  return wrapSSR(
    <OverrideContext.Provider value={null}>
      <MenuContext.Provider value={contextValue}>
        <RcMenu
          getPopupContainer={getPopupContainer}
          overflowedIndicator={<EllipsisOutlined />}
          overflowedIndicatorPopupClassName={`${prefixCls}-${theme}`}
          mode={mergedMode}
          selectable={mergedSelectable}
          onClick={onItemClick}
          {...passedProps}
          inlineCollapsed={mergedInlineCollapsed}
          className={menuClassName}
          prefixCls={prefixCls}
          direction={direction}
          defaultMotions={defaultMotions}
          expandIcon={mergedExpandIcon}
          ref={ref}
          rootClassName={classNames(rootClassName, hashId)}
        >
          {mergedChildren}
        </RcMenu>
      </MenuContext.Provider>
    </OverrideContext.Provider>,
  );
});

export default InternalMenu;