refactor: remove deprecated

Author: Wxh16144

src/Collapse.tsx

@@ -1,6 +1,5 @@
 import classNames from 'classnames';
 import useMergedState from 'rc-util/lib/hooks/useMergedState';
-import warning from 'rc-util/lib/warning';
 import React from 'react';
 import useItems from './hooks/useItems';
 import type { CollapseProps } from './interface';
@@ -23,7 +22,6 @@ const Collapse = React.forwardRef<HTMLDivElement, CollapseProps>((props, ref) =>
     style,
     accordion,
     className,
-    children,
     collapsible,
     openMotion,
     expandIcon,
@@ -58,12 +56,7 @@ const Collapse = React.forwardRef<HTMLDivElement, CollapseProps>((props, ref) =>
     });
 
   // ======================== Children ========================
-  warning(
-    !children,
-    '`children` will be removed in next major version. Please use `items` instead.',
-  );
-
-  const mergedChildren = useItems(items, children, {
+  const mergedChildren = useItems(items, {
     prefixCls,
     accordion,
     openMotion,

src/hooks/useItems.tsx

@@ -1,4 +1,3 @@
-import toArray from 'rc-util/lib/Children/toArray';
 import React from 'react';
 import type { CollapsePanelProps, CollapseProps, ItemType } from '../interface';
 import CollapsePanel from '../Panel';
@@ -31,8 +30,6 @@ const convertItemsToNodes = (items: ItemType[], props: Props) => {
       ...restProps
     } = item;
 
-    // You may be puzzled why you want to convert them all into strings, me too.
-    // Maybe: https://github.com/react-component/collapse/blob/aac303a8b6ff30e35060b4f8fecde6f4556fcbe2/src/Collapse.tsx#L15
     const key = String(rawKey ?? index);
     const mergeCollapsible = rawCollapsible ?? collapsible;
     const mergeDestroyInactivePanel = rawDestroyInactivePanel ?? destroyInactivePanel;
@@ -71,92 +68,12 @@ const convertItemsToNodes = (items: ItemType[], props: Props) => {
   });
 };
 
-/**
- * @deprecated The next major version will be removed
- */
-const getNewChild = (
-  child: React.ReactElement<CollapsePanelProps>,
-  index: number,
-  props: Props,
-) => {
-  if (!child) return null;
-
-  const {
-    prefixCls,
-    accordion,
-    collapsible,
-    destroyInactivePanel,
-    onItemClick,
-    activeKey,
-    openMotion,
-    expandIcon,
-  } = props;
-
-  const key = child.key || String(index);
-
-  const {
-    header,
-    headerClass,
-    destroyInactivePanel: childDestroyInactivePanel,
-    collapsible: childCollapsible,
-    onItemClick: childOnItemClick,
-  } = child.props;
-
-  let isActive = false;
-  if (accordion) {
-    isActive = activeKey[0] === key;
-  } else {
-    isActive = activeKey.indexOf(key) > -1;
-  }
-
-  const mergeCollapsible = childCollapsible ?? collapsible;
-
-  const handleItemClick = (value: React.Key) => {
-    if (mergeCollapsible === 'disabled') return;
-    onItemClick(value);
-    childOnItemClick?.(value);
-  };
-
-  const childProps = {
-    key,
-    panelKey: key,
-    header,
-    headerClass,
-    isActive,
-    prefixCls,
-    destroyInactivePanel: childDestroyInactivePanel ?? destroyInactivePanel,
-    openMotion,
-    accordion,
-    children: child.props.children,
-    onItemClick: handleItemClick,
-    expandIcon,
-    collapsible: mergeCollapsible,
-  };
-
-  // https://github.com/ant-design/ant-design/issues/20479
-  if (typeof child.type === 'string') {
-    return child;
-  }
-
-  Object.keys(childProps).forEach((propName) => {
-    if (typeof childProps[propName] === 'undefined') {
-      delete childProps[propName];
-    }
-  });
-
-  return React.cloneElement(child, childProps);
-};
-
-function useItems(
-  items?: ItemType[],
-  rawChildren?: React.ReactNode,
-  props?: Props,
-): React.ReactElement<CollapsePanelProps>[] {
+function useItems(items?: ItemType[], props?: Props) {
   if (Array.isArray(items)) {
     return convertItemsToNodes(items, props);
   }
 
-  return toArray(rawChildren).map((child, index) => getNewChild(child, index, props));
+  return null;
 }
 
 export default useItems;

src/index.tsx

@@ -1,10 +1,2 @@
-import Collapse from './Collapse';
-
+export { default } from './Collapse';
 export type { CollapsePanelProps, CollapseProps } from './interface';
-
-export default Collapse;
-
-/**
- * @deprecated use `items` instead, will be removed in `v4.0.0`
- */
-export const { Panel } = Collapse;