XeNote/components/FolderTree.js

import * as React from 'react';
import { TreeView, TreeItem } from '@mui/x-tree-view';
import ExpandMoreIcon from '@mui/icons-material/ExpandMore';
import ChevronRightIcon from '@mui/icons-material/ChevronRight';
import { useRouter } from 'next/router'
import { styled } from '@mui/material/styles';
import { Divider } from '@mui/material';

const TCTreeItem = styled(TreeItem)(({ theme }) => ({
  '& .MuiTreeItem-content': {
    '& .MuiTreeItem-label': {
      fontSize: '1rem',
      paddingLeft: '6px',
      fontFamily: '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif,',
      lineHeight: 2.0,
    },
  },
}))


export default function FolderTree(props) {
  const renderTree = (nodes) => (
    <TCTreeItem key={nodes.id} nodeId={nodes.id} label={nodes.name}>
      {Array.isArray(nodes.children)
        ? nodes.children.map((node) => renderTree(node))
        : null}
    </TCTreeItem>
  );

  const router = useRouter()
  // const childrenNodeIds = props.tree.children.map(aNode => {return aNode.id})
  const expandedNodes = [props.tree.id]
  return (
    <>
      <a href='http://localhost:3000'>{"<-"} Back To Portfolio</a>
      <Divider />
      <TreeView
        aria-label="rich object"
        defaultCollapseIcon={<ExpandMoreIcon />}
        defaultExpanded={expandedNodes}
        defaultExpandIcon={<ChevronRightIcon />}
        onNodeSelect={(event, nodIds) => {
          const currentNode = props.flattenNodes.find(aNode => {
            return aNode.id === nodIds
          })
          if (currentNode != null && currentNode.routePath != null) {
            router.push(currentNode.routePath)
          }
        }}
        sx={{ flexGrow: 1, maxWidth: 400, overflowY: 'auto' }}
      >
        {renderTree(props.tree)}
      </TreeView>
    </>
  );
}