ant-design/components/collapse/Collapse.tsx

import * as React from 'react';
import RcCollapse from 'rc-collapse';
import { CSSMotionProps } from 'rc-motion';
import classNames from 'classnames';
import RightOutlined from '@ant-design/icons/RightOutlined';

import toArray from 'rc-util/lib/Children/toArray';
import omit from 'rc-util/lib/omit';
import CollapsePanel, { CollapsibleType } from './CollapsePanel';
import { ConfigContext } from '../config-provider';
import collapseMotion from '../_util/motion';
import { cloneElement } from '../_util/reactNode';

export type ExpandIconPosition = 'left' | 'right' | undefined;

export interface CollapseProps {
  activeKey?: Array<string | number> | string | number;
  defaultActiveKey?: Array<string | number> | string | number;
  /** 手风琴效果 */
  accordion?: boolean;
  destroyInactivePanel?: boolean;
  onChange?: (key: string | string[]) => void;
  style?: React.CSSProperties;
  className?: string;
  bordered?: boolean;
  prefixCls?: string;
  expandIcon?: (panelProps: PanelProps) => React.ReactNode;
  expandIconPosition?: ExpandIconPosition;
  ghost?: boolean;
  collapsible?: CollapsibleType;
}

interface PanelProps {
  isActive?: boolean;
  header?: React.ReactNode;
  className?: string;
  style?: React.CSSProperties;
  showArrow?: boolean;
  forceRender?: boolean;
  /** @deprecated Use `collapsible="disabled"` instead */
  disabled?: boolean;
  extra?: React.ReactNode;
  collapsible?: CollapsibleType;
}

interface CollapseInterface extends React.FC<CollapseProps> {
  Panel: typeof CollapsePanel;
}

const Collapse: CollapseInterface = props => {
  const { getPrefixCls, direction } = React.useContext(ConfigContext);
  const { prefixCls: customizePrefixCls, className = '', bordered = true, ghost } = props;
  const prefixCls = getPrefixCls('collapse', customizePrefixCls);

  const getIconPosition = () => {
    const { expandIconPosition } = props;
    if (expandIconPosition !== undefined) {
      return expandIconPosition;
    }
    return direction === 'rtl' ? 'right' : 'left';
  };

  const renderExpandIcon = (panelProps: PanelProps = {}) => {
    const { expandIcon } = props;
    const icon = (