import React, { useState, useRef } from 'react';
import './index.css';
import { Tree } from 'antd';
import type { TreeDataNode } from 'antd';
const treeData: TreeDataNode[] = [
{
title: '0-0',
key: '0-0',
children: [
{
title: '0-0-0',
key: '0-0-0',
children: [
{ title: '0-0-0-0', key: '0-0-0-0' },
{ title: '0-0-0-1', key: '0-0-0-1' },
{ title: '0-0-0-2', key: '0-0-0-2' },
],
},
{
title: '0-0-1',
key: '0-0-1',
children: [
{ title: '0-0-1-0', key: '0-0-1-0' },
{ title: '0-0-1-1', key: '0-0-1-1' },
{ title: '0-0-1-2', key: '0-0-1-2' },
],
},
{
title: '0-0-2',
key: '0-0-2',
},
],
},
{
title: '0-1',
key: '0-1',
children: [
{ title: '0-1-0-0', key: '0-1-0-0' },
{ title: '0-1-0-1', key: '0-1-0-1' },
{ title: '0-1-0-2', key: '0-1-0-2' },
],
},
{
title: '0-2',
key: '0-2',
},
];
const App: React.FC = () => {
const [expandedKeys, setExpandedKeys] = useState<React.Key[]>([]);
const [checkedKeys, setCheckedKeys] = useState<React.Key[]>([]);
const [selectedKeys, setSelectedKeys] = useState<React.Key[]>([]);
const [autoExpandParent, setAutoExpandParent] = useState<boolean>(true);
const keyLevelMap = useRef(new Map());
const onExpend = (
expandedKeysValue: React.Key[],
{ expanded, boolean, node }
) => {
if (expanded) {
const level: number = node.pos.split('-').length - 1;
keyLevelMap.current.set(node.key, level);
const filterKey: any[] = [];
expandedKeysValue.forEach((item) => {
if (keyLevelMap.current.get(item) !== level) {
filterKey.push(item);
}
});
filterKey.push(node.key);
setExpandedKeys(filterKey);
setAutoExpandParent(false);
} else {
setExpandedKeys(expandedKeysValue);
setAutoExpandParent(false);
}
};
const onCheck = (checkedKeysValue: React.Key[]) => {
console.log('onCheck', checkedKeysValue);
setCheckedKeys(checkedKeysValue);
};
const onSelect = (selectedKeysValue: React.Key[], info: any) => {
console.log('onSelect', info);
setSelectedKeys(selectedKeysValue);
};
return (
<Tree
checkable
onExpand={onExpend}
expandedKeys={expandedKeys}
autoExpandParent={autoExpandParent}
onCheck={onCheck}
checkedKeys={checkedKeys}
onSelect={onSelect}
selectedKeys={selectedKeys}
treeData={treeData}
/>
);
};
export default App;