content: import React, { Component } from 'react';
  import { OverlayService, DomHandler, ZIndexUtils, ConnectedOverlayScrollHandler, classNames, ObjectUtils, CSSTransition, Portal } 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 Menu = /*#__PURE__*/function (_Component) {
    _inherits(Menu, _Component);
  
    var _super = _createSuper(Menu);
  
    function Menu(props) {
      var _this;
  
      _classCallCheck(this, Menu);
  
      _this = _super.call(this, props);
      _this.state = {
        visible: !props.popup
      };
      _this.onEnter = _this.onEnter.bind(_assertThisInitialized(_this));
      _this.onEntered = _this.onEntered.bind(_assertThisInitialized(_this));
      _this.onExit = _this.onExit.bind(_assertThisInitialized(_this));
      _this.onExited = _this.onExited.bind(_assertThisInitialized(_this));
      _this.onPanelClick = _this.onPanelClick.bind(_assertThisInitialized(_this));
      _this.menuRef = /*#__PURE__*/React.createRef();
      return _this;
    }
  
    _createClass(Menu, [{
      key: "onPanelClick",
      value: function onPanelClick(event) {
        if (this.props.popup) {
          OverlayService.emit('overlay-click', {
            originalEvent: event,
            target: this.target
          });
        }
      }
    }, {
      key: "onItemClick",
      value: function onItemClick(event, item) {
        if (item.disabled) {
          event.preventDefault();
          return;
        }
  
        if (!item.url) {
          event.preventDefault();
        }
  
        if (item.command) {
          item.command({
            originalEvent: event,
            item: item
          });
        }
  
        if (this.props.popup) {
          this.hide(event);
        }
      }
    }, {
      key: "onItemKeyDown",
      value: function onItemKeyDown(event, item) {
        var listItem = event.currentTarget.parentElement;
  
        switch (event.which) {
          //down
          case 40:
            var nextItem = this.findNextItem(listItem);
  
            if (nextItem) {
              nextItem.children[0].focus();
            }
  
            event.preventDefault();
            break;
          //up
  
          case 38:
            var prevItem = this.findPrevItem(listItem);
  
            if (prevItem) {
              prevItem.children[0].focus();
            }
  
            event.preventDefault();
            break;
        }
      }
    }, {
      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: "toggle",
      value: function toggle(event) {
        if (this.props.popup) {
          if (this.state.visible) this.hide(event);else this.show(event);
        }
      }
    }, {
      key: "show",
      value: function show(event) {
        var _this2 = this;
  
        this.target = event.currentTarget;
        var currentEvent = event;
        this.setState({
          visible: true
        }, function () {
          if (_this2.props.onShow) {
            _this2.props.onShow(currentEvent);
          }
        });
      }
    }, {
      key: "hide",
      value: function hide(event) {
        var _this3 = this;
  
        var currentEvent = event;
        this.setState({
          visible: false
        }, function () {
          if (_this3.props.onHide) {
            _this3.props.onHide(currentEvent);
          }
        });
      }
    }, {
      key: "onEnter",
      value: function onEnter() {
        ZIndexUtils.set('menu', this.menuRef.current, this.props.baseZIndex);
        DomHandler.absolutePosition(this.menuRef.current, this.target);
      }
    }, {
      key: "onEntered",
      value: function onEntered() {
        this.bindDocumentListeners();
        this.bindScrollListener();
      }
    }, {
      key: "onExit",
      value: function onExit() {
        this.target = null;
        this.unbindDocumentListeners();
        this.unbindScrollListener();
      }
    }, {
      key: "onExited",
      value: function onExited() {
        ZIndexUtils.clear(this.menuRef.current);
      }
    }, {
      key: "bindDocumentListeners",
      value: function bindDocumentListeners() {
        var _this4 = this;
  
        if (!this.documentClickListener) {
          this.documentClickListener = function (event) {
            if (_this4.state.visible && _this4.isOutsideClicked(event)) {
              _this4.hide(event);
            }
          };
  
          document.addEventListener('click', this.documentClickListener);
        }
  
        if (!this.documentResizeListener) {
          this.documentResizeListener = function (event) {
            if (_this4.state.visible && !DomHandler.isAndroid()) {
              _this4.hide(event);
            }
          };
  
          window.addEventListener('resize', this.documentResizeListener);
        }
      }
    }, {
      key: "unbindDocumentListeners",
      value: function unbindDocumentListeners() {
        if (this.documentClickListener) {
          document.removeEventListener('click', this.documentClickListener);
          this.documentClickListener = null;
        }
  
        if (this.documentResizeListener) {
          window.removeEventListener('resize', this.documentResizeListener);
          this.documentResizeListener = null;
        }
      }
    }, {
      key: "bindScrollListener",
      value: function bindScrollListener() {
        var _this5 = this;
  
        if (!this.scrollHandler) {
          this.scrollHandler = new ConnectedOverlayScrollHandler(this.target, function (event) {
            if (_this5.state.visible) {
              _this5.hide(event);
            }
          });
        }
  
        this.scrollHandler.bindScrollListener();
      }
    }, {
      key: "unbindScrollListener",
      value: function unbindScrollListener() {
        if (this.scrollHandler) {
          this.scrollHandler.unbindScrollListener();
        }
      }
    }, {
      key: "isOutsideClicked",
      value: function isOutsideClicked(event) {
        return this.menuRef && this.menuRef.current && !(this.menuRef.current.isSameNode(event.target) || this.menuRef.current.contains(event.target));
      }
    }, {
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        this.unbindDocumentListeners();
  
        if (this.scrollHandler) {
          this.scrollHandler.destroy();
          this.scrollHandler = null;
        }
  
        ZIndexUtils.clear(this.menuRef.current);
      }
    }, {
      key: "renderSubmenu",
      value: function renderSubmenu(submenu, index) {
        var _this6 = this;
  
        var className = classNames('p-submenu-header', {
          'p-disabled': submenu.disabled
        }, submenu.className);
        var items = submenu.items.map(function (item, index) {
          return _this6.renderMenuitem(item, index);
        });
        return /*#__PURE__*/React.createElement(React.Fragment, {
          key: submenu.label + '_' + index
        }, /*#__PURE__*/React.createElement("li", {
          className: className,
          style: submenu.style,
          role: "presentation",
          "aria-disabled": submenu.disabled
        }, submenu.label), items);
      }
    }, {
      key: "renderSeparator",
      value: function renderSeparator(index) {
        return /*#__PURE__*/React.createElement("li", {
          key: 'separator_' + index,
          className: "p-menu-separator",
          role: "separator"
        });
      }
    }, {
      key: "renderMenuitem",
      value: function renderMenuitem(item, index) {
        var _this7 = this;
  
        var className = classNames('p-menuitem', item.className);
        var linkClassName = classNames('p-menuitem-link', {
          'p-disabled': item.disabled
        });
        var iconClassName = classNames('p-menuitem-icon', item.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 tabIndex = item.disabled ? null : 0;
        var content = /*#__PURE__*/React.createElement("a", {
          href: item.url || '#',
          className: linkClassName,
          role: "menuitem",
          target: item.target,
          onClick: function onClick(event) {
            return _this7.onItemClick(event, item);
          },
          onKeyDown: function onKeyDown(event) {
            return _this7.onItemKeyDown(event, item);
          },
          tabIndex: tabIndex,
          "aria-disabled": item.disabled
        }, icon, label);
  
        if (item.template) {
          var defaultContentOptions = {
            onClick: function onClick(event) {
              return _this7.onItemClick(event, item);
            },
            onKeyDown: function onKeyDown(event) {
              return _this7.onItemKeyDown(event, item);
            },
            className: linkClassName,
            tabIndex: tabIndex,
            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: "renderItem",
      value: function renderItem(item, index) {
        if (item.separator) {
          return this.renderSeparator(index);
        } else {
          if (item.items) return this.renderSubmenu(item, index);else return this.renderMenuitem(item, index);
        }
      }
    }, {
      key: "renderMenu",
      value: function renderMenu() {
        var _this8 = this;
  
        return this.props.model.map(function (item, index) {
          return _this8.renderItem(item, index);
        });
      }
    }, {
      key: "renderElement",
      value: function renderElement() {
        if (this.props.model) {
          var className = classNames('p-menu p-component', this.props.className, {
            'p-menu-overlay': this.props.popup
          });
          var menuitems = this.renderMenu();
          return /*#__PURE__*/React.createElement(CSSTransition, {
            nodeRef: this.menuRef,
            classNames: "p-connected-overlay",
            in: this.state.visible,
            timeout: {
              enter: 120,
              exit: 100
            },
            options: this.props.transitionOptions,
            unmountOnExit: true,
            onEnter: this.onEnter,
            onEntered: this.onEntered,
            onExit: this.onExit,
            onExited: this.onExited
          }, /*#__PURE__*/React.createElement("div", {
            ref: this.menuRef,
            id: this.props.id,
            className: className,
            style: this.props.style,
            onClick: this.onPanelClick
          }, /*#__PURE__*/React.createElement("ul", {
            className: "p-menu-list p-reset",
            role: "menu"
          }, menuitems)));
        }
  
        return null;
      }
    }, {
      key: "render",
      value: function render() {
        var element = this.renderElement();
        return this.props.popup ? /*#__PURE__*/React.createElement(Portal, {
          element: element,
          appendTo: this.props.appendTo
        }) : element;
      }
    }]);
  
    return Menu;
  }(Component);
  
  _defineProperty(Menu, "defaultProps", {
    id: null,
    model: null,
    popup: false,
    style: null,
    className: null,
    autoZIndex: true,
    baseZIndex: 0,
    appendTo: null,
    transitionOptions: null,
    onShow: null,
    onHide: null
  });
  
  export { Menu };
  