@mui/icons-material#ArrowDropDown TypeScript Examples

Files: React.FC = () => {
  const plugin = usePlugin()
  const theme = useTheme()
  const his = useHistory()
  const loc = useLocation()
  const drawerWidth = useDrawerWidth()
  const tree = useRef<HTMLHRElement | null>(null)
  const editor = useRef<UnControlled | null>(null)
  const prevExpanded = useRef<string[]>([])
  const dirs = useRef<Record<string, boolean>>({ })
  // eslint-disable-next-line func-call-spacing
  const loading = useRef<Record<string, () => Promise<void>> & { '!#LOADING'?: boolean }>({ })
  const [id, setId] = useState(0)
  const [curPath, setCurPath] = useState('')
  const [progress, setProgress] = useState(-1)
  const [copyPath, setCopyPath] = useState('')
  const [expanded, setExpanded] = useState<string[]>([])
  const [compressFile, setCompressFile] = useState<string | null>(null)
  const [anchorEl, setAnchorEl] = React.useState<HTMLButtonElement | null>(null)

  const isDir = !!dirs.current[curPath]
  const dirPath = isDir ? curPath : curPath.substring(0, curPath.lastIndexOf('/'))

  const spacing = theme.spacing(3)
  const refresh = () => {
    loading.current = { }
    dirs.current = { }
    prevExpanded.current = []
    setCurPath('')
    setExpanded([])
    setId(id + 1)
  }

  useEffect(() => {
    if (!tree.current) return
    const resize = () => {
      if (!tree.current) return
      const height = tree.current.style.maxHeight = (window.innerHeight - tree.current.offsetTop - parseInt(spacing)) + 'px'
      const style = (editor as any).current?.editor?.display?.wrapper?.style
      if (style) style.height = height
    }
    resize()
    window.addEventListener('resize', resize)
    return window.removeEventListener('resize', resize)
  }, [tree.current, spacing])

  return <Box sx={{ height: '100vh', py: 3 }}>
    <Toolbar />
    <Container maxWidth={false}>
      <Grid container spacing={3} sx={{ width: { sm: `calc(100vw - ${drawerWidth}px - ${theme.spacing(3)})` } }}>
        <Grid item lg={4} md={12} xl={3} xs={12}>
          <Card sx={{ minHeight: 400 }}>
            <CardHeader
              title={lang.files.filesList}
              sx={{ position: 'relative' }}
              action={<Box sx={{ position: 'absolute', right: theme.spacing(1), top: '50%', transform: 'translateY(-50%)' }}
            >
              <Tooltip title={lang.files.delete}><span>
                <IconButton
                  disabled={!curPath}
                  size='small'
                  onClick={() => dialog({
                    okButton: { color: 'error' },
                    content: <>{lang.files.confirmDelete(<span className='bold'>{curPath}</span>)}&nbsp;
                      <span className='bold' style={{ color: theme.palette.error.main }}>({lang.unrecoverable})</span></>
                  }).then(it => it && plugin.emit('files:update', (res: boolean) => {
                    action(res)
                    if (!res) return
                    refresh()
                    if (loc.pathname.replace(/^\/NekoMaid\/files\/?/, '') === curPath) his.push('/NekoMaid/files')
                  }, curPath))}
                ><DeleteForever /></IconButton>
              </span></Tooltip>
              <Tooltip title={lang.files.createFile}>
                <IconButton size='small' onClick={() => fileNameDialog(lang.files.createFile, curPath)
                  .then(it => it != null && his.push(`/NekoMaid/files/${dirPath ? dirPath + '/' : ''}${it}`))}>
              <Description /></IconButton></Tooltip>
              <Tooltip title={lang.files.createFolder}>
                <IconButton size='small' onClick={() => fileNameDialog(lang.files.createFolder, curPath)
                  .then(it => it != null && plugin.emit('files:createDirectory', (res: boolean) => {
                    action(res)
                    if (res) refresh()
                  }, dirPath + '/' + it))}><CreateNewFolder /></IconButton></Tooltip>
              <Tooltip title={lang.more}>
                <IconButton size='small' onClick={e => setAnchorEl(anchorEl ? null : e.currentTarget)}><MoreHoriz /></IconButton>
              </Tooltip>
            </Box>} />
            <Divider />
            <TreeView
              ref={tree}
              defaultCollapseIcon={<ArrowDropDown />}
              defaultExpandIcon={<ArrowRight />}
              sx={{ flexGrow: 1, width: '100%', overflowY: 'auto' }}
              expanded={expanded}
              onNodeToggle={(_: any, it: string[]) => {
                const l = loading.current
                if (it.length < prevExpanded.current.length || !l[it[0]]) {
                  setExpanded(it)
                  prevExpanded.current = it
                  return
                }
                l[it[0]]().then(() => {
                  prevExpanded.current.unshift(it[0])
                  setExpanded([...prevExpanded.current])
                  delete l[it[0]]
                })
                delete l[it[0]]
              }}
              onNodeSelect={(_: any, it: string) => {
                setCurPath(it[0] === '/' ? it.slice(1) : it)
                if (dirs.current[it] || loading.current['!#LOADING']) return
                if (it.startsWith('/')) it = it.slice(1)
                his.push('/NekoMaid/files/' + it)
              }}
            >
              <Item plugin={plugin} path='' loading={loading.current} dirs={dirs.current} key={id} />
            </TreeView>
          </Card>
        </Grid>
        <Grid item lg={8} md={12} xl={9} xs={12} sx={{ maxWidth: `calc(100vw - ${theme.spacing(1)})`, paddingBottom: 3 }}>
          <Editor plugin={plugin} editorRef={editor} loading={loading.current} dirs={dirs.current} refresh={refresh} />
        </Grid>
      </Grid>
    </Container>
    <Menu
      anchorEl={anchorEl}
      open={Boolean(anchorEl)}
      onClose={() => setAnchorEl(null)}
      anchorOrigin={anchorOrigin}
      transformOrigin={anchorOrigin}
    >
      <MenuItem onClick={() => {
        refresh()
        setAnchorEl(null)
      }}><ListItemIcon><Refresh /></ListItemIcon>{lang.refresh}</MenuItem>
      <MenuItem disabled={!curPath} onClick={() => {
        setAnchorEl(null)
        fileNameDialog(lang.files.rename, curPath).then(it => it != null && plugin.emit('files:rename', (res: boolean) => {
          action(res)
          if (res) refresh()
        }, curPath, dirPath + '/' + it))
      }}><ListItemIcon><DriveFileRenameOutline /></ListItemIcon>{lang.files.rename}</MenuItem>
      <MenuItem disabled={!curPath} onClick={() => {
        setAnchorEl(null)
        setCopyPath(curPath)
      }}>
        <ListItemIcon><FileCopy /></ListItemIcon>{lang.files.copy}
      </MenuItem>
      <MenuItem disabled={!copyPath} onClick={() => {
        setAnchorEl(null)
        toast(lang.files.pasting)
        plugin.emit('files:copy', (res: boolean) => {
          action(res)
          refresh()
        }, copyPath, dirPath)
      }}>
        <ListItemIcon><ContentPaste /></ListItemIcon>{lang.files.paste}
      </MenuItem>
      <MenuItem disabled={progress !== -1} component='label' htmlFor='NekoMaid-files-upload-input' onClick={() => setAnchorEl(null)}>
        <ListItemIcon><Upload /></ListItemIcon>{progress === -1 ? lang.files.upload : `${lang.files.uploading} (${progress.toFixed(2)}%)`}
      </MenuItem>
      <MenuItem disabled={isDir} onClick={() => {
        setAnchorEl(null)
        toast(lang.files.downloading)
        plugin.emit('files:download', (res: ArrayBuffer | null) => {
          if (res) window.open(address! + 'Download/' + res, '_blank')
          else failed()
        }, curPath)
      }}><ListItemIcon><Download /></ListItemIcon>{lang.files.download}</MenuItem>
      <MenuItem onClick={() => {
        setAnchorEl(null)
        setCompressFile(curPath)
      }}><ListItemIcon><Inbox /></ListItemIcon>{lang.files.compress}</MenuItem>
      <MenuItem onClick={() => {
        setAnchorEl(null)
        toast(lang.files.uncompressing)
        plugin.emit('files:compress', (res: boolean) => {
          action(res)
          refresh()
        }, curPath)
      }}><ListItemIcon><Outbox /></ListItemIcon>{lang.files.decompress}</MenuItem>
    </Menu>
    <Input id='NekoMaid-files-upload-input' type='file' sx={{ display: 'none' }} onChange={e => {
      const elm = e.target as HTMLInputElement
      const file = elm.files?.[0]
      elm.value = ''
      if (!file) return
      const size = file.size
      if (size > 128 * 1024 * 1024) return failed(lang.files.uploadTooBig)
      toast(lang.files.uploading)
      const name = dirPath + '/' + file.name
      if (dirs.current[name] != null) return failed(lang.files.exists)
      plugin.emit('files:upload', (res: string | null) => {
        if (!res) return failed(lang.files.exists)
        const formdata = new FormData()
        formdata.append('file', file)
        const xhr = new XMLHttpRequest()
        setProgress(0)
        xhr.open('put', address! + 'Upload/' + res)
        xhr.onreadystatechange = () => {
          if (xhr.readyState !== 4) return
          setProgress(-1)
          action(xhr.status === 200)
          refresh()
        }
        xhr.upload.onprogress = e => e.lengthComputable && setProgress(e.loaded / e.total * 100)
        xhr.send(formdata)
      }, name[0] === '/' ? name.slice(1) : name)
    }} />
    <CompressDialog file={compressFile} path={dirPath} dirs={dirs.current} onClose={() => setCompressFile(null)} refresh={refresh} plugin={plugin} />
  </Box>
}