antd/es/dropdown/dropdown.js

An enterprise-class UI design language and React components implementation

function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

import * as React from 'react';
import RcDropdown from 'rc-dropdown';
import classNames from 'classnames';
import RightOutlined from '@ant-design/icons/RightOutlined';
import DropdownButton from './dropdown-button';
import { ConfigContext } from '../config-provider';
import devWarning from '../_util/devWarning';
import { tuple } from '../_util/type';
import { cloneElement } from '../_util/reactNode';
var Placements = tuple('topLeft', 'topCenter', 'topRight', 'bottomLeft', 'bottomCenter', 'bottomRight');

var Dropdown = function Dropdown(props) {
  var _React$useContext = React.useContext(ConfigContext),
      getContextPopupContainer = _React$useContext.getPopupContainer,
      getPrefixCls = _React$useContext.getPrefixCls,
      direction = _React$useContext.direction;

  var getTransitionName = function getTransitionName() {
    var _props$placement = props.placement,
        placement = _props$placement === void 0 ? '' : _props$placement,
        transitionName = props.transitionName;

    if (transitionName !== undefined) {
      return transitionName;
    }

    if (placement.indexOf('top') >= 0) {
      return 'slide-down';
    }

    return 'slide-up';
  };

  var renderOverlay = function renderOverlay(prefixCls) {
    // rc-dropdown already can process the function of overlay, but we have check logic here.
    // So we need render the element to check and pass back to rc-dropdown.
    var overlay = props.overlay;
    var overlayNode;

    if (typeof overlay === 'function') {
      overlayNode = overlay();
    } else {
      overlayNode = overlay;
    }

    overlayNode = React.Children.only(typeof overlayNode === 'string' ? /*#__PURE__*/React.createElement("span", null, "overlayNode") : overlayNode);
    var overlayProps = overlayNode.props; // Warning if use other mode

    devWarning(!overlayProps.mode || overlayProps.mode === 'vertical', 'Dropdown', "mode=\"".concat(overlayProps.mode, "\" is not supported for Dropdown's Menu.")); // menu cannot be selectable in dropdown defaultly
    // menu should be focusable in dropdown defaultly

    var _overlayProps$selecta = overlayProps.selectable,
        selectable = _overlayProps$selecta === void 0 ? false : _overlayProps$selecta,
        _overlayProps$focusab = overlayProps.focusable,
        focusable = _overlayProps$focusab === void 0 ? true : _overlayProps$focusab;
    var expandIcon = /*#__PURE__*/React.createElement("span", {
      className: "".concat(prefixCls, "-menu-submenu-arrow")
    }, /*#__PURE__*/React.createElement(RightOutlined, {
      className: "".concat(prefixCls, "-menu-submenu-arrow-icon")
    }));
    var fixedModeOverlay = typeof overlayNode.type === 'string' ? overlayNode : cloneElement(overlayNode, {
      mode: 'vertical',
      selectable: selectable,
      focusable: focusable,
      expandIcon: expandIcon
    });
    return fixedModeOverlay;
  };

  var getPlacement = function getPlacement() {
    var placement = props.placement;

    if (placement !== undefined) {
      return placement;
    }

    return direction === 'rtl' ? 'bottomRight' : 'bottomLeft';
  };

  var customizePrefixCls = props.prefixCls,
      children = props.children,
      trigger = props.trigger,
      disabled = props.disabled,
      getPopupContainer = props.getPopupContainer,
      overlayClassName = props.overlayClassName;
  var prefixCls = getPrefixCls('dropdown', customizePrefixCls);
  var child = React.Children.only(children);
  var dropdownTrigger = cloneElement(child, {
    className: classNames(child.props.className, "".concat(prefixCls, "-trigger"), _defineProperty({}, "".concat(prefixCls, "-rtl"), direction === 'rtl')),
    disabled: disabled
  });
  var overlayClassNameCustomized = classNames(overlayClassName, _defineProperty({}, "".concat(prefixCls, "-rtl"), direction === 'rtl'));
  var triggerActions = disabled ? [] : trigger;
  var alignPoint;

  if (triggerActions && triggerActions.indexOf('contextMenu') !== -1) {
    alignPoint = true;
  }

  return /*#__PURE__*/React.createElement(RcDropdown, _extends({
    alignPoint: alignPoint
  }, props, {
    overlayClassName: overlayClassNameCustomized,
    prefixCls: prefixCls,
    getPopupContainer: getPopupContainer || getContextPopupContainer,
    transitionName: getTransitionName(),
    trigger: triggerActions,
    overlay: function overlay() {
      return renderOverlay(prefixCls);
    },
    placement: getPlacement()
  }), dropdownTrigger);
};

Dropdown.Button = DropdownButton;
Dropdown.defaultProps = {
  mouseEnterDelay: 0.15,
  mouseLeaveDelay: 0.1
};
export default Dropdown;