Function Tree

_benchmarks/sample_antd.js:118012–118920

()

  var _super = Object(_babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"])(Tree);

  function Tree() {
    var _this;

    Object(_babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_4__[/* default */ "a"])(this, Tree);

    _this = _super.apply(this, arguments);
    _this.destroyed = false;
    _this.state = {
      keyEntities: {},
      indent: null,
      selectedKeys: [],
      checkedKeys: [],
      halfCheckedKeys: [],
      loadedKeys: [],
      loadingKeys: [],
      expandedKeys: [],
      dragging: false,
      dragChildrenKeys: [],
      // dropTargetKey is the key of abstract-drop-node
      // the abstract-drop-node is the real drop node when drag and drop
      // not the DOM drag over node
      dropTargetKey: null,
      dropPosition: null,
      dropContainerKey: null,
      dropLevelOffset: null,
      dropTargetPos: null,
      dropAllowed: true,
      // the abstract-drag-over-node
      // if mouse is on the bottom of top dom node or no the top of the bottom dom node
      // abstract-drag-over-node is the top node
      dragOverNodeKey: null,
      treeData: [],
      flattenNodes: [],
      focused: false,
      activeKey: null,
      listChanging: false,
      prevProps: null
    };
    _this.dragStartMousePosition = null;
    _this.listRef = /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9__["createRef"]();

    _this.onNodeDragStart = function (event, node) {
      var _this$state = _this.state,
          expandedKeys = _this$state.expandedKeys,
          keyEntities = _this$state.keyEntities;
      var onDragStart = _this.props.onDragStart;
      var eventKey = node.props.eventKey;
      _this.dragNode = node;
      _this.dragStartMousePosition = {
        x: event.clientX,
        y: event.clientY
      };
      var newExpandedKeys = Object(_util__WEBPACK_IMPORTED_MODULE_14__[/* arrDel */ "b"])(expandedKeys, eventKey);

      _this.setState({
        dragging: true,
        dragChildrenKeys: Object(_util__WEBPACK_IMPORTED_MODULE_14__[/* getDragChildrenKeys */ "g"])(eventKey, keyEntities),
        indent: _this.listRef.current.getIndentWidth()