ant-design/components/tabs/demo/custom-tab-bar-node.tsx

import React, { useState } from 'react';
import type { DragEndEvent } from '@dnd-kit/core';
import { closestCenter, DndContext, PointerSensor, useSensor } from '@dnd-kit/core';
import {
  arrayMove,
  horizontalListSortingStrategy,
  SortableContext,
  useSortable,
} from '@dnd-kit/sortable';
import { CSS } from '@dnd-kit/utilities';
import { Tabs } from 'antd';
import type { TabsProps } from 'antd';

interface DraggableTabPaneProps extends React.HTMLAttributes<HTMLDivElement> {
  'data-node-key': string;
}

const DraggableTabNode: React.FC<Readonly<DraggableTabPaneProps>> = ({ className, ...props }) => {
  const { attributes, listeners, setNodeRef, transform, transition } = useSortable({
    id: props['data-node-key'],
  });

  const style: React.CSSProperties = {
    ...props.style,
    transform: CSS.Translate.toString(transform),
    transition,
    cursor: 'move',
  };

  return React.cloneElement(props.children as React.ReactElement<any>, {
    ref: setNodeRef,
    style,
    ...attributes,
    ...listeners,
  });
};

const App: React.FC = () => {
  const [items, setItems] = useState<NonNullable<TabsProps['items']>>([
    { key: '1', label: 'Tab 1', children: 'Content of Tab Pane 1' },
    { key: '2', label: 'Tab 2', children: 'Content of Tab Pane 2' },
    { key: '3', label: 'Tab 3', children: 'Content of Tab Pane 3' },
  ]);

  const sensor = useSensor(PointerSensor, { activationConstraint: { distance: 10 } });

  const onDragEnd = ({ active, over }: DragEndEvent) => {
    if (active.id !== over?.id) {
      setItems((prev) => {
        const activeIndex = prev.findIndex((i) => i.key === active.id);
        const overIndex = prev.findIndex((i) => i.key === over?.id);
        return arrayMove(prev, activeIndex, overIndex);
      });
    }
  };

  return (
    <Tabs
      items={items}
      renderTabBar={(tabBarProps, DefaultTabBar) => (
        <DndContext sensors={[sensor]} onDragEnd={onDragEnd} collisionDetection={closestCenter}>
          <SortableContext items={items.map((i) => i.key)} strategy={horizontalListSortingStrategy}>
            <DefaultTabBar {...tabBarProps}>
              {(node) => (
                <DraggableTabNode
                  {...(node as React.ReactElement<DraggableTabPaneProps>).props}
                  key={node.key}
                >
                  {node}
                </DraggableTabNode>
              )}
            </DefaultTabBar>
          </SortableContext>
        </DndContext>
      )}
    />
  );
};

export default App;