content: import React, { Component } from 'react';
  import { DomHandler, ObjectUtils, classNames } from 'primereact/utils';
  import { Ripple } from 'primereact/ripple';
  
  function _arrayLikeToArray$2(arr, len) {
    if (len == null || len > arr.length) len = arr.length;
  
    for (var i = 0, arr2 = new Array(len); i < len; i++) {
      arr2[i] = arr[i];
    }
  
    return arr2;
  }
  
  function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) return _arrayLikeToArray$2(arr);
  }
  
  function _iterableToArray(iter) {
    if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
  }
  
  function _unsupportedIterableToArray$2(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _arrayLikeToArray$2(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(o);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$2(o, minLen);
  }
  
  function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }
  
  function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray$2(arr) || _nonIterableSpread();
  }
  
  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }
  
  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }
  
  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }
  
  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
  
    return self;
  }
  
  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };
  
    return _setPrototypeOf(o, p);
  }
  
  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }
  
    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }
  
  function _typeof(obj) {
    "@babel/helpers - typeof";
  
    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
      _typeof = function _typeof(obj) {
        return typeof obj;
      };
    } else {
      _typeof = function _typeof(obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      };
    }
  
    return _typeof(obj);
  }
  
  function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
      return call;
    } else if (call !== void 0) {
      throw new TypeError("Derived constructors may only return object or undefined");
    }
  
    return _assertThisInitialized(self);
  }
  
  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }
  
  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }
  
    return obj;
  }
  
  function _createForOfIteratorHelper$1(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray$1(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
  
  function _unsupportedIterableToArray$1(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray$1(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$1(o, minLen); }
  
  function _arrayLikeToArray$1(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
  
  function ownKeys$1(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }
  
  function _objectSpread$1(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$1(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$1(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
  
  function _createSuper$1(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct$1(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _isNativeReflectConstruct$1() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  var UITreeNode = /*#__PURE__*/function (_Component) {
    _inherits(UITreeNode, _Component);
  
    var _super = _createSuper$1(UITreeNode);
  
    function UITreeNode(props) {
      var _this;
  
      _classCallCheck(this, UITreeNode);
  
      _this = _super.call(this, props);
      _this.onClick = _this.onClick.bind(_assertThisInitialized(_this));
      _this.onDoubleClick = _this.onDoubleClick.bind(_assertThisInitialized(_this));
      _this.onRightClick = _this.onRightClick.bind(_assertThisInitialized(_this));
      _this.onTouchEnd = _this.onTouchEnd.bind(_assertThisInitialized(_this));
      _this.onTogglerClick = _this.onTogglerClick.bind(_assertThisInitialized(_this));
      _this.onNodeKeyDown = _this.onNodeKeyDown.bind(_assertThisInitialized(_this));
      _this.propagateUp = _this.propagateUp.bind(_assertThisInitialized(_this));
      _this.onDrop = _this.onDrop.bind(_assertThisInitialized(_this));
      _this.onDragOver = _this.onDragOver.bind(_assertThisInitialized(_this));
      _this.onDragEnter = _this.onDragEnter.bind(_assertThisInitialized(_this));
      _this.onDragLeave = _this.onDragLeave.bind(_assertThisInitialized(_this));
      _this.onDragStart = _this.onDragStart.bind(_assertThisInitialized(_this));
      _this.onDragEnd = _this.onDragEnd.bind(_assertThisInitialized(_this));
      _this.onDropPointDragOver = _this.onDropPointDragOver.bind(_assertThisInitialized(_this));
      _this.onDropPointDragEnter = _this.onDropPointDragEnter.bind(_assertThisInitialized(_this));
      _this.onDropPointDragLeave = _this.onDropPointDragLeave.bind(_assertThisInitialized(_this));
      return _this;
    }
  
    _createClass(UITreeNode, [{
      key: "isLeaf",
      value: function isLeaf() {
        return this.props.isNodeLeaf(this.props.node);
      }
    }, {
      key: "expand",
      value: function expand(event) {
        var expandedKeys = this.props.expandedKeys ? _objectSpread$1({}, this.props.expandedKeys) : {};
        expandedKeys[this.props.node.key] = true;
        this.props.onToggle({
          originalEvent: event,
          value: expandedKeys
        });
        this.invokeToggleEvents(event, true);
      }
    }, {
      key: "collapse",
      value: function collapse(event) {
        var expandedKeys = _objectSpread$1({}, this.props.expandedKeys);
  
        delete expandedKeys[this.props.node.key];
        this.props.onToggle({
          originalEvent: event,
          value: expandedKeys
        });
        this.invokeToggleEvents(event, false);
      }
    }, {
      key: "onTogglerClick",
      value: function onTogglerClick(event) {
        if (this.props.disabled) {
          return;
        }
  
        if (this.isExpanded()) this.collapse(event);else this.expand(event);
      }
    }, {
      key: "invokeToggleEvents",
      value: function invokeToggleEvents(event, expanded) {
        if (expanded) {
          if (this.props.onExpand) {
            this.props.onExpand({
              originalEvent: event,
              node: this.props.node
            });
          }
        } else {
          if (this.props.onCollapse) {
            this.props.onCollapse({
              originalEvent: event,
              node: this.props.node
            });
          }
        }
      }
    }, {
      key: "isExpanded",
      value: function isExpanded() {
        return (this.props.expandedKeys ? this.props.expandedKeys[this.props.node.key] !== undefined : false) || this.props.node.expanded;
      }
    }, {
      key: "onNodeKeyDown",
      value: function onNodeKeyDown(event) {
        if (this.props.disabled) {
          return;
        }
  
        var nodeElement = event.target.parentElement;
  
        if (!DomHandler.hasClass(nodeElement, 'p-treenode')) {
          return;
        }
  
        switch (event.which) {
          //down arrow
          case 40:
            var listElement = nodeElement.children[1];
  
            if (listElement) {
              this.focusNode(listElement.children[0]);
            } else {
              var nextNodeElement = nodeElement.nextElementSibling;
  
              if (nextNodeElement) {
                this.focusNode(nextNodeElement);
              } else {
                var nextSiblingAncestor = this.findNextSiblingOfAncestor(nodeElement);
  
                if (nextSiblingAncestor) {
                  this.focusNode(nextSiblingAncestor);
                }
              }
            }
  
            event.preventDefault();
            break;
          //up arrow
  
          case 38:
            if (nodeElement.previousElementSibling) {
              this.focusNode(this.findLastVisibleDescendant(nodeElement.previousElementSibling));
            } else {
              var parentNodeElement = this.getParentNodeElement(nodeElement);
  
              if (parentNodeElement) {
                this.focusNode(parentNodeElement);
              }
            }
  
            event.preventDefault();
            break;
          //right arrow
  
          case 39:
            if (!this.isExpanded()) {
              this.expand(event);
            }
  
            event.preventDefault();
            break;
          //left arrow
  
          case 37:
            if (this.isExpanded()) {
              this.collapse(event);
            }
  
            event.preventDefault();
            break;
          //enter
  
          case 13:
            this.onClick(event);
            event.preventDefault();
            break;
        }
      }
    }, {
      key: "findNextSiblingOfAncestor",
      value: function findNextSiblingOfAncestor(nodeElement) {
        var parentNodeElement = this.getParentNodeElement(nodeElement);
  
        if (parentNodeElement) {
          if (parentNodeElement.nextElementSibling) return parentNodeElement.nextElementSibling;else return this.findNextSiblingOfAncestor(parentNodeElement);
        } else {
          return null;
        }
      }
    }, {
      key: "findLastVisibleDescendant",
      value: function findLastVisibleDescendant(nodeElement) {
        var childrenListElement = nodeElement.children[1];
  
        if (childrenListElement) {
          var lastChildElement = childrenListElement.children[childrenListElement.children.length - 1];
          return this.findLastVisibleDescendant(lastChildElement);
        } else {
          return nodeElement;
        }
      }
    }, {
      key: "getParentNodeElement",
      value: function getParentNodeElement(nodeElement) {
        var parentNodeElement = nodeElement.parentElement.parentElement;
        return DomHandler.hasClass(parentNodeElement, 'p-treenode') ? parentNodeElement : null;
      }
    }, {
      key: "focusNode",
      value: function focusNode(element) {
        element.children[0].focus();
      }
    }, {
      key: "onClick",
      value: function onClick(event) {
        if (this.props.onClick) {
          this.props.onClick({
            originalEvent: event,
            node: this.props.node
          });
        }
  
        if (event.target.className && event.target.className.constructor === String && event.target.className.indexOf('p-tree-toggler') === 0 || this.props.disabled) {
          return;
        }
  
        if (this.props.selectionMode && this.props.node.selectable !== false) {
          var selectionKeys;
  
          if (this.isCheckboxSelectionMode()) {
            var checked = this.isChecked();
            selectionKeys = this.props.selectionKeys ? _objectSpread$1({}, this.props.selectionKeys) : {};
  
            if (checked) {
              if (this.props.propagateSelectionDown) this.propagateDown(this.props.node, false, selectionKeys);else delete selectionKeys[this.props.node.key];
  
              if (this.props.propagateSelectionUp && this.props.onPropagateUp) {
                this.props.onPropagateUp({
                  originalEvent: event,
                  check: false,
                  selectionKeys: selectionKeys
                });
              }
  
              if (this.props.onUnselect) {
                this.props.onUnselect({
                  originalEvent: event,
                  node: this.props.node
                });
              }
            } else {
              if (this.props.propagateSelectionDown) this.propagateDown(this.props.node, true, selectionKeys);else selectionKeys[this.props.node.key] = {
                checked: true
              };
  
              if (this.props.propagateSelectionUp && this.props.onPropagateUp) {
                this.props.onPropagateUp({
                  originalEvent: event,
                  check: true,
                  selectionKeys: selectionKeys
                });
              }
  
              if (this.props.onSelect) {
                this.props.onSelect({
                  originalEvent: event,
                  node: this.props.node
                });
              }
            }
          } else {
            var selected = this.isSelected();
            var metaSelection = this.nodeTouched ? false : this.props.metaKeySelection;
  
            if (metaSelection) {
              var metaKey = event.metaKey || event.ctrlKey;
  
              if (selected && metaKey) {
                if (this.isSingleSelectionMode()) {
                  selectionKeys = null;
                } else {
                  selectionKeys = _objectSpread$1({}, this.props.selectionKeys);
                  delete selectionKeys[this.props.node.key];
                }
  
                if (this.props.onUnselect) {
                  this.props.onUnselect({
                    originalEvent: event,
                    node: this.props.node
                  });
                }
              } else {
                if (this.isSingleSelectionMode()) {
                  selectionKeys = this.props.node.key;
                } else if (this.isMultipleSelectionMode()) {
                  selectionKeys = !metaKey ? {} : this.props.selectionKeys ? _objectSpread$1({}, this.props.selectionKeys) : {};
                  selectionKeys[this.props.node.key] = true;
                }
  
                if (this.props.onSelect) {
                  this.props.onSelect({
                    originalEvent: event,
                    node: this.props.node
                  });
                }
              }
            } else {
              if (this.isSingleSelectionMode()) {
                if (selected) {
                  selectionKeys = null;
  
                  if (this.props.onUnselect) {
                    this.props.onUnselect({
                      originalEvent: event,
                      node: this.props.node
                    });
                  }
                } else {
                  selectionKeys = this.props.node.key;
  
                  if (this.props.onSelect) {
                    this.props.onSelect({
                      originalEvent: event,
                      node: this.props.node
                    });
                  }
                }
              } else {
                if (selected) {
                  selectionKeys = _objectSpread$1({}, this.props.selectionKeys);
                  delete selectionKeys[this.props.node.key];
  
                  if (this.props.onUnselect) {
                    this.props.onUnselect({
                      originalEvent: event,
                      node: this.props.node
                    });
                  }
                } else {
                  selectionKeys = this.props.selectionKeys ? _objectSpread$1({}, this.props.selectionKeys) : {};
                  selectionKeys[this.props.node.key] = true;
  
                  if (this.props.onSelect) {
                    this.props.onSelect({
                      originalEvent: event,
                      node: this.props.node
                    });
                  }
                }
              }
            }
          }
  
          if (this.props.onSelectionChange) {
            this.props.onSelectionChange({
              originalEvent: event,
              value: selectionKeys
            });
          }
        }
  
        this.nodeTouched = false;
      }
    }, {
      key: "onDoubleClick",
      value: function onDoubleClick(event) {
        if (this.props.onDoubleClick) {
          this.props.onDoubleClick({
            originalEvent: event,
            node: this.props.node
          });
        }
      }
    }, {
      key: "onRightClick",
      value: function onRightClick(event) {
        if (this.props.disabled) {
          return;
        }
  
        DomHandler.clearSelection();
  
        if (this.props.onContextMenuSelectionChange) {
          this.props.onContextMenuSelectionChange({
            originalEvent: event,
            value: this.props.node.key
          });
        }
  
        if (this.props.onContextMenu) {
          this.props.onContextMenu({
            originalEvent: event,
            node: this.props.node
          });
        }
      }
    }, {
      key: "propagateUp",
      value: function propagateUp(event) {
        var check = event.check;
        var selectionKeys = event.selectionKeys;
        var checkedChildCount = 0;
        var childPartialSelected = false;
  
        var _iterator = _createForOfIteratorHelper$1(this.props.node.children),
            _step;
  
        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var child = _step.value;
            if (selectionKeys[child.key] && selectionKeys[child.key].checked) checkedChildCount++;else if (selectionKeys[child.key] && selectionKeys[child.key].partialChecked) childPartialSelected = true;
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
  
        if (check && checkedChildCount === this.props.node.children.length) {
          selectionKeys[this.props.node.key] = {
            checked: true,
            partialChecked: false
          };
        } else {
          if (!check) {
            delete selectionKeys[this.props.node.key];
          }
  
          if (childPartialSelected || checkedChildCount > 0 && checkedChildCount !== this.props.node.children.length) selectionKeys[this.props.node.key] = {
            checked: false,
            partialChecked: true
          };else delete selectionKeys[this.props.node.key];
        }
  
        if (this.props.propagateSelectionUp && this.props.onPropagateUp) {
          this.props.onPropagateUp(event);
        }
      }
    }, {
      key: "propagateDown",
      value: function propagateDown(node, check, selectionKeys) {
        if (check) selectionKeys[node.key] = {
          checked: true,
          partialChecked: false
        };else delete selectionKeys[node.key];
  
        if (node.children && node.children.length) {
          for (var i = 0; i < node.children.length; i++) {
            this.propagateDown(node.children[i], check, selectionKeys);
          }
        }
      }
    }, {
      key: "isSelected",
      value: function isSelected() {
        if (this.props.selectionMode && this.props.selectionKeys) return this.isSingleSelectionMode() ? this.props.selectionKeys === this.props.node.key : this.props.selectionKeys[this.props.node.key] !== undefined;else return false;
      }
    }, {
      key: "isChecked",
      value: function isChecked() {
        return this.props.selectionKeys ? this.props.selectionKeys[this.props.node.key] && this.props.selectionKeys[this.props.node.key].checked : false;
      }
    }, {
      key: "isPartialChecked",
      value: function isPartialChecked() {
        return this.props.selectionKeys ? this.props.selectionKeys[this.props.node.key] && this.props.selectionKeys[this.props.node.key].partialChecked : false;
      }
    }, {
      key: "isSingleSelectionMode",
      value: function isSingleSelectionMode() {
        return this.props.selectionMode && this.props.selectionMode === 'single';
      }
    }, {
      key: "isMultipleSelectionMode",
      value: function isMultipleSelectionMode() {
        return this.props.selectionMode && this.props.selectionMode === 'multiple';
      }
    }, {
      key: "isCheckboxSelectionMode",
      value: function isCheckboxSelectionMode() {
        return this.props.selectionMode && this.props.selectionMode === 'checkbox';
      }
    }, {
      key: "onTouchEnd",
      value: function onTouchEnd() {
        this.nodeTouched = true;
      }
    }, {
      key: "onDropPoint",
      value: function onDropPoint(event, position) {
        event.preventDefault();
  
        if (this.props.node.droppable !== false) {
          DomHandler.removeClass(event.target, 'p-treenode-droppoint-active');
  
          if (this.props.onDropPoint) {
            this.props.onDropPoint({
              originalEvent: event,
              path: this.props.path,
              index: this.props.index,
              position: position
            });
          }
        }
      }
    }, {
      key: "onDropPointDragOver",
      value: function onDropPointDragOver(event) {
        if (event.dataTransfer.types[1] === this.props.dragdropScope.toLocaleLowerCase()) {
          event.dataTransfer.dropEffect = 'move';
          event.preventDefault();
        }
      }
    }, {
      key: "onDropPointDragEnter",
      value: function onDropPointDragEnter(event) {
        if (event.dataTransfer.types[1] === this.props.dragdropScope.toLocaleLowerCase()) {
          DomHandler.addClass(event.target, 'p-treenode-droppoint-active');
        }
      }
    }, {
      key: "onDropPointDragLeave",
      value: function onDropPointDragLeave(event) {
        if (event.dataTransfer.types[1] === this.props.dragdropScope.toLocaleLowerCase()) {
          DomHandler.removeClass(event.target, 'p-treenode-droppoint-active');
        }
      }
    }, {
      key: "onDrop",
      value: function onDrop(event) {
        if (this.props.dragdropScope && this.props.node.droppable !== false) {
          DomHandler.removeClass(this.contentElement, 'p-treenode-dragover');
          event.preventDefault();
          event.stopPropagation();
  
          if (this.props.onDrop) {
            this.props.onDrop({
              originalEvent: event,
              path: this.props.path,
              index: this.props.index
            });
          }
        }
      }
    }, {
      key: "onDragOver",
      value: function onDragOver(event) {
        if (event.dataTransfer.types[1] === this.props.dragdropScope.toLocaleLowerCase() && this.props.node.droppable !== false) {
          event.dataTransfer.dropEffect = 'move';
          event.preventDefault();
          event.stopPropagation();
        }
      }
    }, {
      key: "onDragEnter",
      value: function onDragEnter(event) {
        if (event.dataTransfer.types[1] === this.props.dragdropScope.toLocaleLowerCase() && this.props.node.droppable !== false) {
          DomHandler.addClass(this.contentElement, 'p-treenode-dragover');
        }
      }
    }, {
      key: "onDragLeave",
      value: function onDragLeave(event) {
        if (event.dataTransfer.types[1] === this.props.dragdropScope.toLocaleLowerCase() && this.props.node.droppable !== false) {
          var rect = event.currentTarget.getBoundingClientRect();
  
          if (event.nativeEvent.x > rect.left + rect.width || event.nativeEvent.x < rect.left || event.nativeEvent.y >= Math.floor(rect.top + rect.height) || event.nativeEvent.y < rect.top) {
            DomHandler.removeClass(this.contentElement, 'p-treenode-dragover');
          }
        }
      }
    }, {
      key: "onDragStart",
      value: function onDragStart(event) {
        event.dataTransfer.setData("text", this.props.dragdropScope);
        event.dataTransfer.setData(this.props.dragdropScope, this.props.dragdropScope);
  
        if (this.props.onDragStart) {
          this.props.onDragStart({
            originalEvent: event,
            path: this.props.path,
            index: this.props.index
          });
        }
      }
    }, {
      key: "onDragEnd",
      value: function onDragEnd(event) {
        if (this.props.onDragEnd) {
          this.props.onDragEnd({
            originalEvent: event
          });
        }
      }
    }, {
      key: "renderLabel",
      value: function renderLabel() {
        var content = /*#__PURE__*/React.createElement("span", {
          className: "p-treenode-label"
        }, this.props.node.label);
  
        if (this.props.nodeTemplate) {
          var defaultContentOptions = {
            onTogglerClick: this.onTogglerClick,
            className: 'p-treenode-label',
            element: content,
            props: this.props,
            expanded: this.isExpanded()
          };
          content = ObjectUtils.getJSXElement(this.props.nodeTemplate, this.props.node, defaultContentOptions);
        }
  
        return content;
      }
    }, {
      key: "renderCheckbox",
      value: function renderCheckbox() {
        if (this.isCheckboxSelectionMode() && this.props.node.selectable !== false) {
          var checked = this.isChecked();
          var partialChecked = this.isPartialChecked();
          var className = classNames('p-checkbox-box', {
            'p-highlight': checked,
            'p-indeterminate': partialChecked,
            'p-disabled': this.props.disabled
          });
          var icon = classNames('p-checkbox-icon p-c', {
            'pi pi-check': checked,
            'pi pi-minus': partialChecked
          });
          return /*#__PURE__*/React.createElement("div", {
            className: "p-checkbox p-component"
          }, /*#__PURE__*/React.createElement("div", {
            className: className,
            role: "checkbox",
            "aria-checked": checked
          }, /*#__PURE__*/React.createElement("span", {
            className: icon
          })));
        }
  
        return null;
      }
    }, {
      key: "renderIcon",
      value: function renderIcon(expanded) {
        var icon = this.props.node.icon || (expanded ? this.props.node.expandedIcon : this.props.node.collapsedIcon);
  
        if (icon) {
          var className = classNames('p-treenode-icon', icon);
          return /*#__PURE__*/React.createElement("span", {
            className: className
          });
        }
  
        return null;
      }
    }, {
      key: "renderToggler",
      value: function renderToggler(expanded) {
        var iconClassName = classNames('p-tree-toggler-icon pi pi-fw', {
          'pi-chevron-right': !expanded,
          'pi-chevron-down': expanded
        });
        var content = /*#__PURE__*/React.createElement("button", {
          type: "button",
          className: "p-tree-toggler p-link",
          tabIndex: -1,
          onClick: this.onTogglerClick
        }, /*#__PURE__*/React.createElement("span", {
          className: iconClassName
        }), /*#__PURE__*/React.createElement(Ripple, null));
  
        if (this.props.togglerTemplate) {
          var defaultContentOptions = {
            onClick: this.onTogglerClick,
            containerClassName: 'p-tree-toggler p-link',
            iconClassName: 'p-tree-toggler-icon',
            element: content,
            props: this.props,
            expanded: expanded
          };
          content = ObjectUtils.getJSXElement(this.props.togglerTemplate, this.props.node, defaultContentOptions);
        }
  
        return content;
      }
    }, {
      key: "renderDropPoint",
      value: function renderDropPoint(position) {
        var _this2 = this;
  
        if (this.props.dragdropScope) {
          return /*#__PURE__*/React.createElement("li", {
            className: "p-treenode-droppoint",
            onDrop: function onDrop(event) {
              return _this2.onDropPoint(event, position);
            },
            onDragOver: this.onDropPointDragOver,
            onDragEnter: this.onDropPointDragEnter,
            onDragLeave: this.onDropPointDragLeave
          });
        }
  
        return null;
      }
    }, {
      key: "renderContent",
      value: function renderContent() {
        var _this3 = this;
  
        var selected = this.isSelected();
        var checked = this.isChecked();
        var className = classNames('p-treenode-content', this.props.node.className, {
          'p-treenode-selectable': this.props.selectionMode && this.props.node.selectable !== false,
          'p-highlight': this.isCheckboxSelectionMode() ? checked : selected,
          'p-highlight-contextmenu': this.props.contextMenuSelectionKey && this.props.contextMenuSelectionKey === this.props.node.key,
          'p-disabled': this.props.disabled
        });
        var expanded = this.isExpanded();
        var toggler = this.renderToggler(expanded);
        var checkbox = this.renderCheckbox();
        var icon = this.renderIcon(expanded);
        var label = this.renderLabel();
        var tabIndex = this.props.disabled ? undefined : 0;
        return /*#__PURE__*/React.createElement("div", {
          ref: function ref(el) {
            return _this3.contentElement = el;
          },
          className: className,
          style: this.props.node.style,
          onClick: this.onClick,
          onDoubleClick: this.onDoubleClick,
          onContextMenu: this.onRightClick,
          onTouchEnd: this.onTouchEnd,
          draggable: this.props.dragdropScope && this.props.node.draggable !== false && !this.props.disabled,
          onDrop: this.onDrop,
          onDragOver: this.onDragOver,
          onDragEnter: this.onDragEnter,
          onDragLeave: this.onDragLeave,
          onDragStart: this.onDragStart,
          onDragEnd: this.onDragEnd,
          tabIndex: tabIndex,
          onKeyDown: this.onNodeKeyDown,
          role: "treeitem",
          "aria-posinset": this.props.index + 1,
          "aria-expanded": this.isExpanded(),
          "aria-selected": checked || selected
        }, toggler, checkbox, icon, label);
      }
    }, {
      key: "renderChildren",
      value: function renderChildren() {
        var _this4 = this;
  
        if (this.props.node.children && this.props.node.children.length && this.isExpanded()) {
          return /*#__PURE__*/React.createElement("ul", {
            className: "p-treenode-children",
            role: "group"
          }, this.props.node.children.map(function (childNode, index) {
            return /*#__PURE__*/React.createElement(UITreeNode, {
              key: childNode.key || childNode.label,
              node: childNode,
              parent: _this4.props.node,
              index: index,
              last: index === _this4.props.node.children.length - 1,
              path: _this4.props.path + '-' + index,
              disabled: _this4.props.disabled,
              selectionMode: _this4.props.selectionMode,
              selectionKeys: _this4.props.selectionKeys,
              onSelectionChange: _this4.props.onSelectionChange,
              metaKeySelection: _this4.props.metaKeySelection,
              propagateSelectionDown: _this4.props.propagateSelectionDown,
              propagateSelectionUp: _this4.props.propagateSelectionUp,
              contextMenuSelectionKey: _this4.props.contextMenuSelectionKey,
              onContextMenuSelectionChange: _this4.props.onContextMenuSelectionChange,
              onContextMenu: _this4.props.onContextMenu,
              onExpand: _this4.props.onExpand,
              onCollapse: _this4.props.onCollapse,
              onSelect: _this4.props.onSelect,
              onUnselect: _this4.props.onUnselect,
              expandedKeys: _this4.props.expandedKeys,
              onToggle: _this4.props.onToggle,
              onPropagateUp: _this4.propagateUp,
              nodeTemplate: _this4.props.nodeTemplate,
              togglerTemplate: _this4.props.togglerTemplate,
              isNodeLeaf: _this4.props.isNodeLeaf,
              dragdropScope: _this4.props.dragdropScope,
              onDragStart: _this4.props.onDragStart,
              onDragEnd: _this4.props.onDragEnd,
              onDrop: _this4.props.onDrop,
              onDropPoint: _this4.props.onDropPoint
            });
          }));
        }
  
        return null;
      }
    }, {
      key: "renderNode",
      value: function renderNode() {
        var className = classNames('p-treenode', {
          'p-treenode-leaf': this.isLeaf()
        }, this.props.node.className);
        var content = this.renderContent();
        var children = this.renderChildren();
        return /*#__PURE__*/React.createElement("li", {
          className: className,
          style: this.props.node.style
        }, content, children);
      }
    }, {
      key: "render",
      value: function render() {
        var node = this.renderNode();
  
        if (this.props.dragdropScope && !this.props.disabled) {
          var beforeDropPoint = this.renderDropPoint(-1);
          var afterDropPoint = this.props.last ? this.renderDropPoint(1) : null;
          return /*#__PURE__*/React.createElement(React.Fragment, null, beforeDropPoint, node, afterDropPoint);
        } else {
          return node;
        }
      }
    }]);
  
    return UITreeNode;
  }(Component);
  
  _defineProperty(UITreeNode, "defaultProps", {
    node: null,
    index: null,
    last: null,
    parent: null,
    path: null,
    disabled: false,
    selectionMode: null,
    selectionKeys: null,
    contextMenuSelectionKey: null,
    metaKeySelection: true,
    expandedKeys: null,
    propagateSelectionUp: true,
    propagateSelectionDown: true,
    dragdropScope: null,
    ariaLabel: null,
    ariaLabelledBy: null,
    nodeTemplate: null,
    togglerTemplate: null,
    isNodeLeaf: null,
    onSelect: null,
    onUnselect: null,
    onExpand: null,
    onCollapse: null,
    onToggle: null,
    onSelectionChange: null,
    onContextMenuSelectionChange: null,
    onPropagateUp: null,
    onDragStart: null,
    onDragEnd: null,
    onDrop: null,
    onDropPoint: null,
    onContextMenu: null,
    onNodeClick: null,
    onNodeDoubleClick: null
  });
  
  function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }
  
  function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
  
  function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
  
  function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
  
  function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  var Tree = /*#__PURE__*/function (_Component) {
    _inherits(Tree, _Component);
  
    var _super = _createSuper(Tree);
  
    function Tree(props) {
      var _this;
  
      _classCallCheck(this, Tree);
  
      _this = _super.call(this, props);
      _this.state = {};
  
      if (!_this.props.onFilterValueChange) {
        _this.state['filterValue'] = '';
      }
  
      if (!_this.props.onToggle) {
        _this.state['expandedKeys'] = _this.props.expandedKeys;
      }
  
      _this.isNodeLeaf = _this.isNodeLeaf.bind(_assertThisInitialized(_this));
      _this.onToggle = _this.onToggle.bind(_assertThisInitialized(_this));
      _this.onDragStart = _this.onDragStart.bind(_assertThisInitialized(_this));
      _this.onDragEnd = _this.onDragEnd.bind(_assertThisInitialized(_this));
      _this.onDrop = _this.onDrop.bind(_assertThisInitialized(_this));
      _this.onDropPoint = _this.onDropPoint.bind(_assertThisInitialized(_this));
      _this.onFilterInputChange = _this.onFilterInputChange.bind(_assertThisInitialized(_this));
      _this.onFilterInputKeyDown = _this.onFilterInputKeyDown.bind(_assertThisInitialized(_this));
      return _this;
    }
  
    _createClass(Tree, [{
      key: "getFilterValue",
      value: function getFilterValue() {
        return this.props.onFilterValueChange ? this.props.filterValue : this.state.filterValue;
      }
    }, {
      key: "getExpandedKeys",
      value: function getExpandedKeys() {
        return this.props.onToggle ? this.props.expandedKeys : this.state.expandedKeys;
      }
    }, {
      key: "getRootNode",
      value: function getRootNode() {
        return this.props.filter && this.filteredNodes ? this.filteredNodes : this.props.value;
      }
    }, {
      key: "onToggle",
      value: function onToggle(event) {
        if (this.props.onToggle) {
          this.props.onToggle(event);
        } else {
          this.setState({
            expandedKeys: event.value
          });
        }
      }
    }, {
      key: "onDragStart",
      value: function onDragStart(event) {
        this.dragState = {
          path: event.path,
          index: event.index
        };
      }
    }, {
      key: "onDragEnd",
      value: function onDragEnd() {
        this.dragState = null;
      }
    }, {
      key: "onDrop",
      value: function onDrop(event) {
        if (this.validateDropNode(this.dragState.path, event.path)) {
          var value = JSON.parse(JSON.stringify(this.props.value));
          var dragPaths = this.dragState.path.split('-');
          dragPaths.pop();
          var dragNodeParent = this.findNode(value, dragPaths);
          var dragNode = dragNodeParent ? dragNodeParent.children[this.dragState.index] : value[this.dragState.index];
          var dropNode = this.findNode(value, event.path.split('-'));
          if (dropNode.children) dropNode.children.push(dragNode);else dropNode.children = [dragNode];
          if (dragNodeParent) dragNodeParent.children.splice(this.dragState.index, 1);else value.splice(this.dragState.index, 1);
  
          if (this.props.onDragDrop) {
            this.props.onDragDrop({
              originalEvent: event.originalEvent,
              value: value,
              dragNode: dragNode,
              dropNode: dropNode,
              dropIndex: event.index
            });
          }
        }
      }
    }, {
      key: "onDropPoint",
      value: function onDropPoint(event) {
        if (this.validateDropPoint(event)) {
          var value = JSON.parse(JSON.stringify(this.props.value));
          var dragPaths = this.dragState.path.split('-');
          dragPaths.pop();
          var dropPaths = event.path.split('-');
          dropPaths.pop();
          var dragNodeParent = this.findNode(value, dragPaths);
          var dropNodeParent = this.findNode(value, dropPaths);
          var dragNode = dragNodeParent ? dragNodeParent.children[this.dragState.index] : value[this.dragState.index];
          var siblings = this.areSiblings(this.dragState.path, event.path);
          if (dragNodeParent) dragNodeParent.children.splice(this.dragState.index, 1);else value.splice(this.dragState.index, 1);
  
          if (event.position < 0) {
            var dropIndex = siblings ? this.dragState.index > event.index ? event.index : event.index - 1 : event.index;
            if (dropNodeParent) dropNodeParent.children.splice(dropIndex, 0, dragNode);else value.splice(dropIndex, 0, dragNode);
          } else {
            if (dropNodeParent) dropNodeParent.children.push(dragNode);else value.push(dragNode);
          }
  
          if (this.props.onDragDrop) {
            this.props.onDragDrop({
              originalEvent: event.originalEvent,
              value: value,
              dragNode: dragNode,
              dropNode: dropNodeParent,
              dropIndex: event.index
            });
          }
        }
      }
    }, {
      key: "validateDrop",
      value: function validateDrop(dragPath, dropPath) {
        if (!dragPath) {
          return false;
        } else {
          //same node
          if (dragPath === dropPath) {
            return false;
          } //parent dropped on an descendant
  
  
          if (dropPath.indexOf(dragPath) === 0) {
            return false;
          }
  
          return true;
        }
      }
    }, {
      key: "validateDropNode",
      value: function validateDropNode(dragPath, dropPath) {
        var validateDrop = this.validateDrop(dragPath, dropPath);
  
        if (validateDrop) {
          //child dropped on parent
          if (dragPath.indexOf('-') > 0 && dragPath.substring(0, dragPath.lastIndexOf('-')) === dropPath) {
            return false;
          }
  
          return true;
        } else {
          return false;
        }
      }
    }, {
      key: "validateDropPoint",
      value: function validateDropPoint(event) {
        var validateDrop = this.validateDrop(this.dragState.path, event.path);
  
        if (validateDrop) {
          //child dropped to next sibling's drop point
          if (event.position === -1 && this.areSiblings(this.dragState.path, event.path) && this.dragState.index + 1 === event.index) {
            return false;
          }
  
          return true;
        } else {
          return false;
        }
      }
    }, {
      key: "areSiblings",
      value: function areSiblings(path1, path2) {
        if (path1.length === 1 && path2.length === 1) return true;else return path1.substring(0, path1.lastIndexOf('-')) === path2.substring(0, path2.lastIndexOf('-'));
      }
    }, {
      key: "findNode",
      value: function findNode(value, path) {
        if (path.length === 0) {
          return null;
        } else {
          var index = parseInt(path[0], 10);
          var nextSearchRoot = value.children ? value.children[index] : value[index];
  
          if (path.length === 1) {
            return nextSearchRoot;
          } else {
            path.shift();
            return this.findNode(nextSearchRoot, path);
          }
        }
      }
    }, {
      key: "isNodeLeaf",
      value: function isNodeLeaf(node) {
        return node.leaf === false ? false : !(node.children && node.children.length);
      }
    }, {
      key: "onFilterInputKeyDown",
      value: function onFilterInputKeyDown(event) {
        //enter
        if (event.which === 13) {
          event.preventDefault();
        }
      }
    }, {
      key: "onFilterInputChange",
      value: function onFilterInputChange(event) {
        this.filterChanged = true;
        var filterValue = event.target.value;
  
        if (this.props.onFilterValueChange) {
          this.props.onFilterValueChange({
            originalEvent: event,
            value: filterValue
          });
        } else {
          this.setState({
            filterValue: filterValue
          });
        }
      }
    }, {
      key: "filter",
      value: function filter(value) {
        this.setState({
          filterValue: ObjectUtils.isNotEmpty(value) ? value : ''
        }, this._filter);
      }
    }, {
      key: "_filter",
      value: function _filter() {
        if (!this.filterChanged) {
          return;
        }
  
        var filterValue = this.getFilterValue();
  
        if (ObjectUtils.isEmpty(filterValue)) {
          this.filteredNodes = this.props.value;
        } else {
          this.filteredNodes = [];
          var searchFields = this.props.filterBy.split(',');
          var filterText = filterValue.toLocaleLowerCase(this.props.filterLocale);
          var isStrictMode = this.props.filterMode === 'strict';
  
          var _iterator = _createForOfIteratorHelper(this.props.value),
              _step;
  
          try {
            for (_iterator.s(); !(_step = _iterator.n()).done;) {
              var node = _step.value;
  
              var copyNode = _objectSpread({}, node);
  
              var paramsWithoutNode = {
                searchFields: searchFields,
                filterText: filterText,
                isStrictMode: isStrictMode
              };
  
              if (isStrictMode && (this.findFilteredNodes(copyNode, paramsWithoutNode) || this.isFilterMatched(copyNode, paramsWithoutNode)) || !isStrictMode && (this.isFilterMatched(copyNode, paramsWithoutNode) || this.findFilteredNodes(copyNode, paramsWithoutNode))) {
                this.filteredNodes.push(copyNode);
              }
            }
          } catch (err) {
            _iterator.e(err);
          } finally {
            _iterator.f();
          }
        }
  
        this.filterChanged = false;
      }
    }, {
      key: "findFilteredNodes",
      value: function findFilteredNodes(node, paramsWithoutNode) {
        if (node) {
          var matched = false;
  
          if (node.children) {
            var childNodes = _toConsumableArray(node.children);
  
            node.children = [];
  
            var _iterator2 = _createForOfIteratorHelper(childNodes),
                _step2;
  
            try {
              for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
                var childNode = _step2.value;
  
                var copyChildNode = _objectSpread({}, childNode);
  
                if (this.isFilterMatched(copyChildNode, paramsWithoutNode)) {
                  matched = true;
                  node.children.push(copyChildNode);
                }
              }
            } catch (err) {
              _iterator2.e(err);
            } finally {
              _iterator2.f();
            }
          }
  
          if (matched) {
            node.expanded = true;
            return true;
          }
        }
      }
    }, {
      key: "isFilterMatched",
      value: function isFilterMatched(node, _ref) {
        var searchFields = _ref.searchFields,
            filterText = _ref.filterText,
            isStrictMode = _ref.isStrictMode;
        var matched = false;
  
        var _iterator3 = _createForOfIteratorHelper(searchFields),
            _step3;
  
        try {
          for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
            var field = _step3.value;
            var fieldValue = String(ObjectUtils.resolveFieldData(node, field)).toLocaleLowerCase(this.props.filterLocale);
  
            if (fieldValue.indexOf(filterText) > -1) {
              matched = true;
            }
          }
        } catch (err) {
          _iterator3.e(err);
        } finally {
          _iterator3.f();
        }
  
        if (!matched || isStrictMode && !this.isNodeLeaf(node)) {
          matched = this.findFilteredNodes(node, {
            searchFields: searchFields,
            filterText: filterText,
            isStrictMode: isStrictMode
          }) || matched;
        }
  
        return matched;
      }
    }, {
      key: "renderRootChild",
      value: function renderRootChild(node, index, last) {
        return /*#__PURE__*/React.createElement(UITreeNode, {
          key: node.key || node.label,
          node: node,
          index: index,
          last: last,
          path: String(index),
          disabled: this.props.disabled,
          selectionMode: this.props.selectionMode,
          selectionKeys: this.props.selectionKeys,
          onSelectionChange: this.props.onSelectionChange,
          metaKeySelection: this.props.metaKeySelection,
          contextMenuSelectionKey: this.props.contextMenuSelectionKey,
          onContextMenuSelectionChange: this.props.onContextMenuSelectionChange,
          onContextMenu: this.props.onContextMenu,
          propagateSelectionDown: this.props.propagateSelectionDown,
          propagateSelectionUp: this.props.propagateSelectionUp,
          onExpand: this.props.onExpand,
          onCollapse: this.props.onCollapse,
          onSelect: this.props.onSelect,
          onUnselect: this.props.onUnselect,
          expandedKeys: this.getExpandedKeys(),
          onToggle: this.onToggle,
          nodeTemplate: this.props.nodeTemplate,
          togglerTemplate: this.props.togglerTemplate,
          isNodeLeaf: this.isNodeLeaf,
          dragdropScope: this.props.dragdropScope,
          onDragStart: this.onDragStart,
          onDragEnd: this.onDragEnd,
          onDrop: this.onDrop,
          onDropPoint: this.onDropPoint,
          onNodeClick: this.props.onNodeClick,
          onNodeDoubleClick: this.props.onNodeDoubleClick
        });
      }
    }, {
      key: "renderRootChildren",
      value: function renderRootChildren() {
        var _this2 = this;
  
        if (this.props.filter) {
          this.filterChanged = true;
  
          this._filter();
        }
  
        var value = this.getRootNode();
        return value.map(function (node, index) {
          return _this2.renderRootChild(node, index, index === value.length - 1);
        });
      }
    }, {
      key: "renderModel",
      value: function renderModel() {
        if (this.props.value) {
          var rootNodes = this.renderRootChildren();
          var contentClass = classNames('p-tree-container', this.props.contentClassName);
          return /*#__PURE__*/React.createElement("ul", {
            className: contentClass,
            role: "tree",
            "aria-label": this.props.ariaLabel,
            "aria-labelledby": this.props.ariaLabelledBy,
            style: this.props.contentStyle
          }, rootNodes);
        }
  
        return null;
      }
    }, {
      key: "renderLoader",
      value: function renderLoader() {
        if (this.props.loading) {
          var icon = classNames('p-tree-loading-icon pi-spin', this.props.loadingIcon);
          return /*#__PURE__*/React.createElement("div", {
            className: "p-tree-loading-overlay p-component-overlay"
          }, /*#__PURE__*/React.createElement("i", {
            className: icon
          }));
        }
  
        return null;
      }
    }, {
      key: "renderFilter",
      value: function renderFilter() {
        if (this.props.filter) {
          var filterValue = this.getFilterValue();
          filterValue = ObjectUtils.isNotEmpty(filterValue) ? filterValue : '';
          return /*#__PURE__*/React.createElement("div", {
            className: "p-tree-filter-container"
          }, /*#__PURE__*/React.createElement("input", {
            type: "text",
            value: filterValue,
            autoComplete: "off",
            className: "p-tree-filter p-inputtext p-component",
            placeholder: this.props.filterPlaceholder,
            onKeyDown: this.onFilterInputKeyDown,
            onChange: this.onFilterInputChange,
            disabled: this.props.disabled
          }), /*#__PURE__*/React.createElement("span", {
            className: "p-tree-filter-icon pi pi-search"
          }));
        }
  
        return null;
      }
    }, {
      key: "renderHeader",
      value: function renderHeader() {
        if (this.props.showHeader) {
          var filterElement = this.renderFilter();
          var content = filterElement;
  
          if (this.props.header) {
            var defaultContentOptions = {
              filterContainerClassName: 'p-tree-filter-container',
              filterIconClasssName: 'p-tree-filter-icon pi pi-search',
              filterInput: {
                className: 'p-tree-filter p-inputtext p-component',
                onKeyDown: this.onFilterInputKeyDown,
                onChange: this.onFilterInputChange
              },
              filterElement: filterElement,
              element: content,
              props: this.props
            };
            content = ObjectUtils.getJSXElement(this.props.header, defaultContentOptions);
          }
  
          return /*#__PURE__*/React.createElement("div", {
            className: "p-tree-header"
          }, content);
        }
  
        return null;
      }
    }, {
      key: "renderFooter",
      value: function renderFooter() {
        var content = ObjectUtils.getJSXElement(this.props.footer, this.props);
        return /*#__PURE__*/React.createElement("div", {
          className: "p-tree-footer"
        }, content);
      }
    }, {
      key: "render",
      value: function render() {
        var className = classNames('p-tree p-component', this.props.className, {
          'p-tree-selectable': this.props.selectionMode,
          'p-tree-loading': this.props.loading,
          'p-disabled': this.props.disabled
        });
        var loader = this.renderLoader();
        var content = this.renderModel();
        var header = this.renderHeader();
        var footer = this.renderFooter();
        return /*#__PURE__*/React.createElement("div", {
          id: this.props.id,
          className: className,
          style: this.props.style
        }, loader, header, content, footer);
      }
    }]);
  
    return Tree;
  }(Component);
  
  _defineProperty(Tree, "defaultProps", {
    id: null,
    value: null,
    disabled: false,
    selectionMode: null,
    selectionKeys: null,
    onSelectionChange: null,
    contextMenuSelectionKey: null,
    onContextMenuSelectionChange: null,
    expandedKeys: null,
    style: null,
    className: null,
    contentStyle: null,
    contentClassName: null,
    metaKeySelection: true,
    propagateSelectionUp: true,
    propagateSelectionDown: true,
    loading: false,
    loadingIcon: 'pi pi-spinner',
    dragdropScope: null,
    header: null,
    footer: null,
    showHeader: true,
    filter: false,
    filterValue: null,
    filterBy: 'label',
    filterMode: 'lenient',
    filterPlaceholder: null,
    filterLocale: undefined,
    nodeTemplate: null,
    togglerTemplate: null,
    onSelect: null,
    onUnselect: null,
    onExpand: null,
    onCollapse: null,
    onToggle: null,
    onDragDrop: null,
    onContextMenu: null,
    onFilterValueChange: null,
    onNodeClick: null,
    onNodeDoubleClick: null
  });
  
  export { Tree };
  