overleaf/services/web/frontend/js/features/file-tree/components/file-tree-folder.jsx

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import { useEffect } from 'react'
import PropTypes from 'prop-types'
import { useTranslation } from 'react-i18next'
import classNames from 'classnames'
import Icon from '../../../shared/components/icon'
import {
useFileTreeSelectable,
useSelectableEntity,
} from '../contexts/file-tree-selectable'
import { useDroppable } from '../contexts/file-tree-draggable'
import FileTreeItemInner from './file-tree-item/file-tree-item-inner'
import FileTreeFolderList from './file-tree-folder-list'
import usePersistedState from '../../../shared/hooks/use-persisted-state'
function FileTreeFolder({ name, id, folders, docs, files }) {
const { t } = useTranslation()
const { isSelected, props: selectableEntityProps } = useSelectableEntity(
id,
'folder'
)
const { selectedEntityParentIds } = useFileTreeSelectable(id)
const [expanded, setExpanded] = usePersistedState(
`folder.${id}.expanded`,
false
)
useEffect(() => {
if (selectedEntityParentIds.has(id)) {
setExpanded(true)
}
}, [id, selectedEntityParentIds, setExpanded])
function handleExpandCollapseClick() {
setExpanded(!expanded)
}
const { isOver: isOverRoot, dropRef: dropRefRoot } = useDroppable(id)
const { isOver: isOverList, dropRef: dropRefList } = useDroppable(id)
const icons = (
<>
<button
onClick={handleExpandCollapseClick}
aria-label={expanded ? t('collapse') : t('expand')}
>
<Icon
type={expanded ? 'angle-down' : 'angle-right'}
fw
className="file-tree-expand-icon"
/>
</button>
<Icon
type={expanded ? 'folder-open' : 'folder'}
fw
className="file-tree-folder-icon"
/>
</>
)
return (
<>
<li
// eslint-disable-next-line jsx-a11y/role-has-required-aria-props
role="treeitem"
// aria-selected is provided in selectableEntityProps
{...selectableEntityProps}
aria-expanded={expanded}
aria-label={name}
tabIndex="0"
ref={dropRefRoot}
className={classNames(selectableEntityProps.className, {
'dnd-droppable-hover': isOverRoot || isOverList,
})}
>
<FileTreeItemInner
id={id}
name={name}
type="folder"
isSelected={isSelected}
icons={icons}
/>
</li>
{expanded ? (
<FileTreeFolderList
folders={folders}
docs={docs}
files={files}
dropRef={dropRefList}
/>
) : null}
</>
)
}
FileTreeFolder.propTypes = {
name: PropTypes.string.isRequired,
id: PropTypes.string.isRequired,
folders: PropTypes.array.isRequired,
docs: PropTypes.array.isRequired,
files: PropTypes.array.isRequired,
}
export default FileTreeFolder