content: import React, { Component } from 'react';
  import { DomHandler, classNames, Ripple, ObjectUtils } from 'primereact/core';
  
  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;
    }
  
    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 _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 MegaMenu = /*#__PURE__*/function (_Component) {
    _inherits(MegaMenu, _Component);
  
    var _super = _createSuper(MegaMenu);
  
    function MegaMenu(props) {
      var _this;
  
      _classCallCheck(this, MegaMenu);
  
      _this = _super.call(this, props);
      _this.state = {
        activeItem: null
      };
      _this.onLeafClick = _this.onLeafClick.bind(_assertThisInitialized(_this));
      return _this;
    }
  
    _createClass(MegaMenu, [{
      key: "onLeafClick",
      value: function onLeafClick(event, item) {
        if (item.disabled) {
          event.preventDefault();
          return;
        }
  
        if (!item.url) {
          event.preventDefault();
        }
  
        if (item.command) {
          item.command({
            originalEvent: event,
            item: item
          });
        }
  
        this.setState({
          activeItem: null
        });
      }
    }, {
      key: "onCategoryMouseEnter",
      value: function onCategoryMouseEnter(event, item) {
        if (item.disabled) {
          event.preventDefault();
          return;
        }
  
        if (this.state.activeItem) {
          this.setState({
            activeItem: item
          });
        }
      }
    }, {
      key: "onCategoryClick",
      value: function onCategoryClick(event, item) {
        if (item.disabled) {
          event.preventDefault();
          return;
        }
  
        if (!item.url) {
          event.preventDefault();
        }
  
        if (item.command) {
          item.command({
            originalEvent: event,
            item: this.props.item
          });
        }
  
        if (item.items) {
          if (this.state.activeItem && this.state.activeItem === item) {
            this.setState({
              activeItem: null
            });
          } else {
            this.setState({
              activeItem: item
            });
          }
        }
  
        event.preventDefault();
      }
    }, {
      key: "onCategoryKeyDown",
      value: function onCategoryKeyDown(event, item) {
        var listItem = event.currentTarget.parentElement;
  
        switch (event.which) {
          //down
          case 40:
            if (this.isHorizontal()) this.expandMenu(item);else this.navigateToNextItem(listItem);
            event.preventDefault();
            break;
          //up
  
          case 38:
            if (this.isVertical()) this.navigateToPrevItem(listItem);else if (item.items && item === this.state.activeItem) this.collapseMenu();
            event.preventDefault();
            break;
          //right
  
          case 39:
            if (this.isHorizontal()) this.navigateToNextItem(listItem);else this.expandMenu(item);
            event.preventDefault();
            break;
          //left
  
          case 37:
            if (this.isHorizontal()) this.navigateToPrevItem(listItem);else if (item.items && item === this.state.activeItem) this.collapseMenu();
            event.preventDefault();
            break;
        }
      }
    }, {
      key: "expandMenu",
      value: function expandMenu(item) {
        if (item.items) {
          this.setState({
            activeItem: item
          });
        }
      }
    }, {
      key: "collapseMenu",
      value: function collapseMenu(item) {
        this.setState({
          activeItem: null
        });
      }
    }, {
      key: "findNextItem",
      value: function findNextItem(item) {
        var nextItem = item.nextElementSibling;
        if (nextItem) return DomHandler.hasClass(nextItem, 'p-disabled') || !DomHandler.hasClass(nextItem, 'p-menuitem') ? this.findNextItem(nextItem) : nextItem;else return null;
      }
    }, {
      key: "findPrevItem",
      value: function findPrevItem(item) {
        var prevItem = item.previousElementSibling;
        if (prevItem) return DomHandler.hasClass(prevItem, 'p-disabled') || !DomHandler.hasClass(prevItem, 'p-menuitem') ? this.findPrevItem(prevItem) : prevItem;else return null;
      }
    }, {
      key: "navigateToNextItem",
      value: function navigateToNextItem(listItem) {
        var nextItem = this.findNextItem(listItem);
  
        if (nextItem) {
          nextItem.children[0].focus();
        }
      }
    }, {
      key: "navigateToPrevItem",
      value: function navigateToPrevItem(listItem) {
        var prevItem = this.findPrevItem(listItem);
  
        if (prevItem) {
          prevItem.children[0].focus();
        }
      }
    }, {
      key: "isHorizontal",
      value: function isHorizontal() {
        return this.props.orientation === 'horizontal';
      }
    }, {
      key: "isVertical",
      value: function isVertical() {
        return this.props.orientation === 'vertical';
      }
    }, {
      key: "getColumnClassName",
      value: function getColumnClassName(category) {
        var length = category.items ? category.items.length : 0;
        var columnClass;
  
        switch (length) {
          case 2:
            columnClass = 'p-megamenu-col-6';
            break;
  
          case 3:
            columnClass = 'p-megamenu-col-4';
            break;
  
          case 4:
            columnClass = 'p-megamenu-col-3';
            break;
  
          case 6:
            columnClass = 'p-megamenu-col-2';
            break;
  
          default:
            columnClass = 'p-megamenu-col-12';
            break;
        }
  
        return columnClass;
      }
    }, {
      key: "componentDidMount",
      value: function componentDidMount() {
        var _this2 = this;
  
        if (!this.documentClickListener) {
          this.documentClickListener = function (event) {
            if (_this2.container && !_this2.container.contains(event.target)) {
              _this2.setState({
                activeItem: null
              });
            }
          };
  
          document.addEventListener('click', this.documentClickListener);
        }
      }
    }, {
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        if (this.documentClickListener) {
          document.removeEventListener('click', this.documentClickListener);
          this.documentClickListener = null;
        }
      }
    }, {
      key: "renderSeparator",
      value: function renderSeparator(index) {
        return /*#__PURE__*/React.createElement("li", {
          key: 'separator_' + index,
          className: "p-menu-separator",
          role: "separator"
        });
      }
    }, {
      key: "renderSubmenuIcon",
      value: function renderSubmenuIcon(item) {
        if (item.items) {
          var className = classNames('p-submenu-icon pi', {
            'pi-angle-down': this.isHorizontal(),
            'pi-angle-right': this.isVertical()
          });
          return /*#__PURE__*/React.createElement("span", {
            className: className
          });
        }
  
        return null;
      }
    }, {
      key: "renderSubmenuItem",
      value: function renderSubmenuItem(item, index) {
        var _this3 = this;
  
        if (item.separator) {
          return this.renderSeparator(index);
        } else {
          var className = classNames('p-menuitem', item.className);
          var linkClassName = classNames('p-menuitem-link', {
            'p-disabled': item.disabled
          });
          var iconClassName = classNames(item.icon, 'p-menuitem-icon');
          var icon = item.icon && /*#__PURE__*/React.createElement("span", {
            className: iconClassName
          });
          var label = item.label && /*#__PURE__*/React.createElement("span", {
            className: "p-menuitem-text"
          }, item.label);
          var content = /*#__PURE__*/React.createElement("a", {
            href: item.url || '#',
            className: linkClassName,
            target: item.target,
            onClick: function onClick(event) {
              return _this3.onLeafClick(event, item);
            },
            role: "menuitem",
            "aria-disabled": item.disabled
          }, icon, label, /*#__PURE__*/React.createElement(Ripple, null));
  
          if (item.template) {
            var defaultContentOptions = {
              onClick: function onClick(event) {
                return _this3.onLeafClick(event, item);
              },
              className: linkClassName,
              labelClassName: 'p-menuitem-text',
              iconClassName: iconClassName,
              element: content,
              props: this.props
            };
            content = ObjectUtils.getJSXElement(item.template, item, defaultContentOptions);
          }
  
          return /*#__PURE__*/React.createElement("li", {
            key: item.label + '_' + index,
            className: className,
            style: item.style,
            role: "none"
          }, content);
        }
      }
    }, {
      key: "renderSubmenu",
      value: function renderSubmenu(submenu) {
        var _this4 = this;
  
        var className = classNames('p-megamenu-submenu-header', {
          'p-disabled': submenu.disabled
        }, submenu.className);
        var items = submenu.items.map(function (item, index) {
          return _this4.renderSubmenuItem(item, index);
        });
        return /*#__PURE__*/React.createElement(React.Fragment, {
          key: submenu.label
        }, /*#__PURE__*/React.createElement("li", {
          className: className,
          style: submenu.style,
          role: "presentation",
          "aria-disabled": submenu.disabled
        }, submenu.label), items);
      }
    }, {
      key: "renderSubmenus",
      value: function renderSubmenus(column) {
        var _this5 = this;
  
        return column.map(function (submenu, index) {
          return _this5.renderSubmenu(submenu, index);
        });
      }
    }, {
      key: "renderColumn",
      value: function renderColumn(category, column, index, columnClassName) {
        var submenus = this.renderSubmenus(column);
        return /*#__PURE__*/React.createElement("div", {
          key: category.label + '_column_' + index,
          className: columnClassName
        }, /*#__PURE__*/React.createElement("ul", {
          className: "p-megamenu-submenu",
          role: "menu"
        }, submenus));
      }
    }, {
      key: "renderColumns",
      value: function renderColumns(category) {
        var _this6 = this;
  
        if (category.items) {
          var columnClassName = this.getColumnClassName(category);
          return category.items.map(function (column, index) {
            return _this6.renderColumn(category, column, index, columnClassName);
          });
        }
  
        return null;
      }
    }, {
      key: "renderCategoryPanel",
      value: function renderCategoryPanel(category) {
        if (category.items) {
          var columns = this.renderColumns(category);
          return /*#__PURE__*/React.createElement("div", {
            className: "p-megamenu-panel"
          }, /*#__PURE__*/React.createElement("div", {
            className: "p-megamenu-grid"
          }, columns));
        }
  
        return null;
      }
    }, {
      key: "renderCategory",
      value: function renderCategory(category, index) {
        var _this7 = this;
  
        var className = classNames('p-menuitem', {
          'p-menuitem-active': category === this.state.activeItem
        }, category.className);
        var linkClassName = classNames('p-menuitem-link', {
          'p-disabled': category.disabled
        });
        var iconClassName = classNames('p-menuitem-icon', category.icon);
        var icon = category.icon && /*#__PURE__*/React.createElement("span", {
          className: iconClassName
        });
        var label = category.label && /*#__PURE__*/React.createElement("span", {
          className: "p-menuitem-text"
        }, category.label);
        var itemContent = category.template ? ObjectUtils.getJSXElement(category.template, category) : null;
        var submenuIcon = this.renderSubmenuIcon(category);
        var panel = this.renderCategoryPanel(category);
        return /*#__PURE__*/React.createElement("li", {
          key: category.label + '_' + index,
          className: className,
          style: category.style,
          onMouseEnter: function onMouseEnter(e) {
            return _this7.onCategoryMouseEnter(e, category);
          },
          role: "none"
        }, /*#__PURE__*/React.createElement("a", {
          href: category.url || '#',
          className: linkClassName,
          target: category.target,
          onClick: function onClick(e) {
            return _this7.onCategoryClick(e, category);
          },
          onKeyDown: function onKeyDown(e) {
            return _this7.onCategoryKeyDown(e, category);
          },
          role: "menuitem",
          "aria-haspopup": category.items != null
        }, icon, label, itemContent, submenuIcon, /*#__PURE__*/React.createElement(Ripple, null)), panel);
      }
    }, {
      key: "renderMenu",
      value: function renderMenu() {
        var _this8 = this;
  
        if (this.props.model) {
          return this.props.model.map(function (item, index) {
            return _this8.renderCategory(item, index, true);
          });
        }
  
        return null;
      }
    }, {
      key: "renderCustomContent",
      value: function renderCustomContent() {
        if (this.props.children) {
          return /*#__PURE__*/React.createElement("div", {
            className: "p-megamenu-custom"
          }, this.props.children);
        }
  
        return null;
      }
    }, {
      key: "render",
      value: function render() {
        var _this9 = this;
  
        var className = classNames('p-megamenu p-component', {
          'p-megamenu-horizontal': this.props.orientation === 'horizontal',
          'p-megamenu-vertical': this.props.orientation === 'vertical'
        }, this.props.className);
        var menu = this.renderMenu();
        var customContent = this.renderCustomContent();
        return /*#__PURE__*/React.createElement("div", {
          ref: function ref(el) {
            return _this9.container = el;
          },
          id: this.props.id,
          className: className,
          style: this.props.style
        }, /*#__PURE__*/React.createElement("ul", {
          className: "p-megamenu-root-list",
          role: "menubar"
        }, menu), customContent);
      }
    }]);
  
    return MegaMenu;
  }(Component);
  
  _defineProperty(MegaMenu, "defaultProps", {
    id: null,
    model: null,
    style: null,
    className: null,
    orientation: 'horizontal'
  });
  
  export { MegaMenu };
  