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Showing content from https://github.com/fritz-c/react-sortable-tree below:

frontend-collective/react-sortable-tree: Drag-and-drop sortable component for nested data and hierarchies

treeData
(required) object[] Tree data with the following keys:

title is the primary label for the node.

subtitle is a secondary label for the node.

expanded shows children of the node if true, or hides them if false. Defaults to false.

children is an array of child nodes belonging to the node.

Example: [{title: 'main', subtitle: 'sub'}, { title: 'value2', expanded: true, children: [{ title: 'value3') }] }]

onChange
(required) func Called whenever tree data changed. Just like with React input elements, you have to update your own component's data to see the changes reflected.

( treeData: object[] ): void

getNodeKey
(recommended) func Specify the unique key used to identify each node and generate the path array passed in callbacks. With a setting of getNodeKey={({ node }) => node.id}, for example, in callbacks this will let you easily determine that the node with an id of 35 is (or has just become) a child of the node with an id of 12, which is a child of ... and so on. It uses defaultGetNodeKey by default, which returns the index in the tree (omitting hidden nodes).

({ node: object, treeIndex: number }): string or number

generateNodeProps func Generate an object with additional props to be passed to the node renderer. Use this for adding buttons via the buttons key, or additional style / className settings.

({ node: object, path: number[] or string[], treeIndex: number, lowerSiblingCounts: number[], isSearchMatch: bool, isSearchFocus: bool }): object

onMoveNode func Called after node move operation.

({ treeData: object[], node: object, nextParentNode: object, prevPath: number[] or string[], prevTreeIndex: number, nextPath: number[] or string[], nextTreeIndex: number }): void

onVisibilityToggle func Called after children nodes collapsed or expanded.

({ treeData: object[], node: object, expanded: bool, path: number[] or string[] }): void

onDragStateChanged func Called when a drag is initiated or ended.

({ isDragging: bool, draggedNode: object }): void

maxDepth number Maximum depth nodes can be inserted at. Defaults to infinite. rowDirection string Adds row direction support if set to 'rtl' Defaults to 'ltr'. canDrag func or bool Return false from callback to prevent node from dragging, by hiding the drag handle. Set prop to false to disable dragging on all nodes. Defaults to true.

({ node: object, path: number[] or string[], treeIndex: number, lowerSiblingCounts: number[], isSearchMatch: bool, isSearchFocus: bool }): bool

canDrop func Return false to prevent node from dropping in the given location.

({ node: object, prevPath: number[] or string[], prevParent: object, prevTreeIndex: number, nextPath: number[] or string[], nextParent: object, nextTreeIndex: number }): bool

canNodeHaveChildren func Function to determine whether a node can have children, useful for preventing hover preview when you have a canDrop condition. Default is set to a function that returns true. Functions should be of type (node): bool. theme object Set an all-in-one packaged appearance for the tree. See the Themes section for more information. searchMethod func The method used to search nodes. Defaults to defaultSearchMethod, which uses the searchQuery string to search for nodes with matching title or subtitle values. NOTE: Changing searchMethod will not update the search, but changing the searchQuery will.

({ node: object, path: number[] or string[], treeIndex: number, searchQuery: any }): bool

searchQuery string or any Used by the searchMethod to highlight and scroll to matched nodes. Should be a string for the default searchMethod, but can be anything when using a custom search. Defaults to null. searchFocusOffset number Outline the <searchFocusOffset>th node and scroll to it. onlyExpandSearchedNodes boolean Only expand the nodes that match searches. Collapses all other nodes. Defaults to false. searchFinishCallback func Get the nodes that match the search criteria. Used for counting total matches, etc.

(matches: { node: object, path: number[] or string[], treeIndex: number }[]): void

dndType string String value used by react-dnd (see overview at the link) for dropTargets and dragSources types. If not set explicitly, a default value is applied by react-sortable-tree for you for its internal use. NOTE: Must be explicitly set and the same value used in order for correct functioning of external nodes shouldCopyOnOutsideDrop func or bool Return true, or a callback returning true, and dropping nodes to react-dnd drop targets outside of the tree will not remove them from the tree. Defaults to false.

({ node: object, prevPath: number[] or string[], prevTreeIndex: number, }): bool

reactVirtualizedListProps object Custom properties to hand to the internal react-virtualized List style object Style applied to the container wrapping the tree (style defaults to {height: '100%'}) innerStyle object Style applied to the inner, scrollable container (for padding, etc.) className string Class name for the container wrapping the tree rowHeight number or func Used by react-sortable-tree. Defaults to 62. Either a fixed row height (number) or a function that returns the height of a row given its index: ({ treeIndex: number, node: object, path: number[] or string[] }): number slideRegionSize number Size in px of the region near the edges that initiates scrolling on dragover. Defaults to 100. scaffoldBlockPxWidth number The width of the blocks containing the lines representing the structure of the tree. Defaults to 44. isVirtualized bool Set to false to disable virtualization. Defaults to true. NOTE: Auto-scrolling while dragging, and scrolling to the searchFocusOffset will be disabled. nodeContentRenderer any Override the default component (NodeRendererDefault) for rendering nodes (but keep the scaffolding generator). This is a last resort for customization - most custom styling should be able to be solved with generateNodeProps, a theme or CSS rules. If you must use it, is best to copy the component in node-renderer-default.js to use as a base, and customize as needed. placeholderRenderer any Override the default placeholder component (PlaceholderRendererDefault) which is displayed when the tree is empty. This is an advanced option, and in most cases should probably be solved with a theme or custom CSS instead.

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