'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var React = require('react');
var utils = require('primereact/utils');
var ripple = require('primereact/ripple');
var csstransition = require('primereact/csstransition');
var portal = require('primereact/portal');
var virtualscroller = require('primereact/virtualscroller');
var PrimeReact = require('primereact/api');
var tooltip = require('primereact/tooltip');
var overlayservice = require('primereact/overlayservice');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var React__default = /*#__PURE__*/_interopDefaultLegacy(React);
var PrimeReact__default = /*#__PURE__*/_interopDefaultLegacy(PrimeReact);

function _extends() {
  _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

    return target;
  };

  return _extends.apply(this, arguments);
}

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);
  Object.defineProperty(Constructor, "prototype", {
    writable: false
  });
  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
    }
  });
  Object.defineProperty(subClass, "prototype", {
    writable: false
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _typeof(obj) {
  "@babel/helpers - typeof";

  return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
  }, _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 _createSuper$2(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct$2(); 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$2() { 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 DropdownItem = /*#__PURE__*/function (_Component) {
  _inherits(DropdownItem, _Component);

  var _super = _createSuper$2(DropdownItem);

  function DropdownItem(props) {
    var _this;

    _classCallCheck(this, DropdownItem);

    _this = _super.call(this, props);
    _this.onClick = _this.onClick.bind(_assertThisInitialized(_this));
    return _this;
  }

  _createClass(DropdownItem, [{
    key: "onClick",
    value: function onClick(event) {
      if (this.props.onClick) {
        this.props.onClick({
          originalEvent: event,
          option: this.props.option
        });
      }
    }
  }, {
    key: "render",
    value: function render() {
      var className = utils.classNames('p-dropdown-item', {
        'p-highlight': this.props.selected,
        'p-disabled': this.props.disabled,
        'p-dropdown-item-empty': !this.props.label || this.props.label.length === 0
      }, this.props.option.className);
      var content = this.props.template ? utils.ObjectUtils.getJSXElement(this.props.template, this.props.option) : this.props.label;
      return /*#__PURE__*/React__default["default"].createElement("li", {
        className: className,
        onClick: this.onClick,
        "aria-label": this.props.label,
        key: this.props.label,
        role: "option",
        "aria-selected": this.props.selected
      }, content, /*#__PURE__*/React__default["default"].createElement(ripple.Ripple, null));
    }
  }]);

  return DropdownItem;
}(React.Component);

_defineProperty(DropdownItem, "defaultProps", {
  option: null,
  label: null,
  template: null,
  selected: false,
  disabled: false,
  onClick: null
});

function ownKeys$1(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); 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 = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys$1(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : 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 DropdownPanelComponent = /*#__PURE__*/function (_Component) {
  _inherits(DropdownPanelComponent, _Component);

  var _super = _createSuper$1(DropdownPanelComponent);

  function DropdownPanelComponent(props) {
    var _this;

    _classCallCheck(this, DropdownPanelComponent);

    _this = _super.call(this, props);
    _this.onEnter = _this.onEnter.bind(_assertThisInitialized(_this));
    _this.onEntered = _this.onEntered.bind(_assertThisInitialized(_this));
    _this.onFilterInputChange = _this.onFilterInputChange.bind(_assertThisInitialized(_this));
    return _this;
  }

  _createClass(DropdownPanelComponent, [{
    key: "onEnter",
    value: function onEnter() {
      var _this2 = this;

      this.props.onEnter(function () {
        if (_this2.virtualScrollerRef) {
          var selectedIndex = _this2.props.getSelectedOptionIndex();

          if (selectedIndex !== -1) {
            _this2.virtualScrollerRef.scrollToIndex(selectedIndex);
          }
        }
      });
    }
  }, {
    key: "onEntered",
    value: function onEntered() {
      var _this3 = this;

      this.props.onEntered(function () {
        if (_this3.props.filter && _this3.props.filterInputAutoFocus) {
          _this3.filterInput.focus();
        }
      });
    }
  }, {
    key: "onFilterInputChange",
    value: function onFilterInputChange(event) {
      if (this.virtualScrollerRef) {
        this.virtualScrollerRef.scrollToIndex(0);
      }

      this.props.onFilterInputChange && this.props.onFilterInputChange(event);
    }
  }, {
    key: "isEmptyFilter",
    value: function isEmptyFilter() {
      return !(this.props.visibleOptions && this.props.visibleOptions.length) && this.props.hasFilter();
    }
  }, {
    key: "renderGroupChildren",
    value: function renderGroupChildren(optionGroup) {
      var _this4 = this;

      var groupChildren = this.props.getOptionGroupChildren(optionGroup);
      return groupChildren.map(function (option, j) {
        var optionLabel = _this4.props.getOptionLabel(option);

        var optionKey = j + '_' + _this4.props.getOptionRenderKey(option);

        var disabled = _this4.props.isOptionDisabled(option);

        return /*#__PURE__*/React__default["default"].createElement(DropdownItem, {
          key: optionKey,
          label: optionLabel,
          option: option,
          template: _this4.props.itemTemplate,
          selected: _this4.props.isSelected(option),
          disabled: disabled,
          onClick: _this4.props.onOptionClick
        });
      });
    }
  }, {
    key: "renderEmptyMessage",
    value: function renderEmptyMessage(emptyMessage, isFilter) {
      var message = utils.ObjectUtils.getJSXElement(emptyMessage, this.props) || PrimeReact.localeOption(isFilter ? 'emptyFilterMessage' : 'emptyMessage');
      return /*#__PURE__*/React__default["default"].createElement("li", {
        className: "p-dropdown-empty-message"
      }, message);
    }
  }, {
    key: "renderItem",
    value: function renderItem(option, index) {
      if (this.props.optionGroupLabel) {
        var groupContent = this.props.optionGroupTemplate ? utils.ObjectUtils.getJSXElement(this.props.optionGroupTemplate, option, index) : this.props.getOptionGroupLabel(option);
        var groupChildrenContent = this.renderGroupChildren(option);
        var key = index + '_' + this.props.getOptionGroupRenderKey(option);
        return /*#__PURE__*/React__default["default"].createElement(React__default["default"].Fragment, {
          key: key
        }, /*#__PURE__*/React__default["default"].createElement("li", {
          className: "p-dropdown-item-group"
        }, groupContent), groupChildrenContent);
      } else {
        var optionLabel = this.props.getOptionLabel(option);
        var optionKey = index + '_' + this.props.getOptionRenderKey(option);
        var disabled = this.props.isOptionDisabled(option);
        return /*#__PURE__*/React__default["default"].createElement(DropdownItem, {
          key: optionKey,
          label: optionLabel,
          option: option,
          template: this.props.itemTemplate,
          selected: this.props.isSelected(option),
          disabled: disabled,
          onClick: this.props.onOptionClick
        });
      }
    }
  }, {
    key: "renderItems",
    value: function renderItems() {
      var _this5 = this;

      if (this.props.visibleOptions && this.props.visibleOptions.length) {
        return this.props.visibleOptions.map(function (option, index) {
          return _this5.renderItem(option, index);
        });
      } else if (this.props.hasFilter()) {
        return this.renderEmptyMessage(this.props.emptyFilterMessage, true);
      }

      return this.renderEmptyMessage(this.props.emptyMessage);
    }
  }, {
    key: "renderFilterClearIcon",
    value: function renderFilterClearIcon() {
      var _this6 = this;

      if (this.props.showFilterClear && this.props.filterValue) {
        return /*#__PURE__*/React__default["default"].createElement("i", {
          className: "p-dropdown-filter-clear-icon pi pi-times",
          onClick: function onClick() {
            return _this6.props.onFilterClearIconClick(function () {
              return _this6.filterInput.focus();
            });
          }
        });
      }

      return null;
    }
  }, {
    key: "renderFilter",
    value: function renderFilter() {
      var _this7 = this;

      if (this.props.filter) {
        var clearIcon = this.renderFilterClearIcon();
        var containerClassName = utils.classNames('p-dropdown-filter-container', {
          'p-dropdown-clearable-filter': !!clearIcon
        });
        return /*#__PURE__*/React__default["default"].createElement("div", {
          className: "p-dropdown-header"
        }, /*#__PURE__*/React__default["default"].createElement("div", {
          className: containerClassName
        }, /*#__PURE__*/React__default["default"].createElement("input", {
          ref: function ref(el) {
            return _this7.filterInput = el;
          },
          type: "text",
          autoComplete: "off",
          className: "p-dropdown-filter p-inputtext p-component",
          placeholder: this.props.filterPlaceholder,
          onKeyDown: this.props.onFilterInputKeyDown,
          onChange: this.onFilterInputChange,
          value: this.props.filterValue
        }), clearIcon, /*#__PURE__*/React__default["default"].createElement("i", {
          className: "p-dropdown-filter-icon pi pi-search"
        })));
      }

      return null;
    }
  }, {
    key: "renderContent",
    value: function renderContent() {
      var _this8 = this;

      if (this.props.virtualScrollerOptions) {
        var virtualScrollerProps = _objectSpread$1(_objectSpread$1({}, this.props.virtualScrollerOptions), {
          style: _objectSpread$1(_objectSpread$1({}, this.props.virtualScrollerOptions.style), {
            height: this.props.scrollHeight
          }),
          className: utils.classNames('p-dropdown-items-wrapper', this.props.virtualScrollerOptions.className),
          items: this.props.visibleOptions,
          onLazyLoad: function onLazyLoad(event) {
            return _this8.props.virtualScrollerOptions.onLazyLoad(_objectSpread$1(_objectSpread$1({}, event), {
              filter: _this8.props.filterValue
            }));
          },
          itemTemplate: function itemTemplate(item, options) {
            return item && _this8.renderItem(item, options.index);
          },
          contentTemplate: function contentTemplate(options) {
            var className = utils.classNames('p-dropdown-items', options.className);
            var content = _this8.isEmptyFilter() ? _this8.renderEmptyMessage() : options.children;
            return /*#__PURE__*/React__default["default"].createElement("ul", {
              ref: options.contentRef,
              className: className,
              role: "listbox"
            }, content);
          }
        });

        return /*#__PURE__*/React__default["default"].createElement(virtualscroller.VirtualScroller, _extends({
          ref: function ref(el) {
            return _this8.virtualScrollerRef = el;
          }
        }, virtualScrollerProps));
      } else {
        var items = this.renderItems();
        return /*#__PURE__*/React__default["default"].createElement("div", {
          className: "p-dropdown-items-wrapper",
          style: {
            maxHeight: this.props.scrollHeight || 'auto'
          }
        }, /*#__PURE__*/React__default["default"].createElement("ul", {
          className: "p-dropdown-items",
          role: "listbox"
        }, items));
      }
    }
  }, {
    key: "renderElement",
    value: function renderElement() {
      var className = utils.classNames('p-dropdown-panel p-component', this.props.panelClassName);
      var filter = this.renderFilter();
      var content = this.renderContent();
      return /*#__PURE__*/React__default["default"].createElement(csstransition.CSSTransition, {
        nodeRef: this.props.forwardRef,
        classNames: "p-connected-overlay",
        "in": this.props["in"],
        timeout: {
          enter: 120,
          exit: 100
        },
        options: this.props.transitionOptions,
        unmountOnExit: true,
        onEnter: this.onEnter,
        onEntering: this.props.onEntering,
        onEntered: this.onEntered,
        onExit: this.props.onExit,
        onExited: this.props.onExited
      }, /*#__PURE__*/React__default["default"].createElement("div", {
        ref: this.props.forwardRef,
        className: className,
        style: this.props.panelStyle,
        onClick: this.props.onClick
      }, filter, content));
    }
  }, {
    key: "render",
    value: function render() {
      var element = this.renderElement();
      return /*#__PURE__*/React__default["default"].createElement(portal.Portal, {
        element: element,
        appendTo: this.props.appendTo
      });
    }
  }]);

  return DropdownPanelComponent;
}(React.Component);

var DropdownPanel = /*#__PURE__*/React__default["default"].forwardRef(function (props, ref) {
  return /*#__PURE__*/React__default["default"].createElement(DropdownPanelComponent, _extends({
    forwardRef: ref
  }, props));
});

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); 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 = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : 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 Dropdown = /*#__PURE__*/function (_Component) {
  _inherits(Dropdown, _Component);

  var _super = _createSuper(Dropdown);

  function Dropdown(props) {
    var _this;

    _classCallCheck(this, Dropdown);

    _this = _super.call(this, props);
    _this.state = {
      filter: '',
      focused: false,
      overlayVisible: false
    };
    _this.onClick = _this.onClick.bind(_assertThisInitialized(_this));
    _this.onInputFocus = _this.onInputFocus.bind(_assertThisInitialized(_this));
    _this.onInputBlur = _this.onInputBlur.bind(_assertThisInitialized(_this));
    _this.onInputKeyDown = _this.onInputKeyDown.bind(_assertThisInitialized(_this));
    _this.onEditableInputChange = _this.onEditableInputChange.bind(_assertThisInitialized(_this));
    _this.onEditableInputFocus = _this.onEditableInputFocus.bind(_assertThisInitialized(_this));
    _this.onOptionClick = _this.onOptionClick.bind(_assertThisInitialized(_this));
    _this.onFilterInputChange = _this.onFilterInputChange.bind(_assertThisInitialized(_this));
    _this.onFilterInputKeyDown = _this.onFilterInputKeyDown.bind(_assertThisInitialized(_this));
    _this.onFilterClearIconClick = _this.onFilterClearIconClick.bind(_assertThisInitialized(_this));
    _this.onPanelClick = _this.onPanelClick.bind(_assertThisInitialized(_this));
    _this.onOverlayEnter = _this.onOverlayEnter.bind(_assertThisInitialized(_this));
    _this.onOverlayEntered = _this.onOverlayEntered.bind(_assertThisInitialized(_this));
    _this.onOverlayExit = _this.onOverlayExit.bind(_assertThisInitialized(_this));
    _this.onOverlayExited = _this.onOverlayExited.bind(_assertThisInitialized(_this));
    _this.resetFilter = _this.resetFilter.bind(_assertThisInitialized(_this));
    _this.clear = _this.clear.bind(_assertThisInitialized(_this));
    _this.hasFilter = _this.hasFilter.bind(_assertThisInitialized(_this));
    _this.getOptionLabel = _this.getOptionLabel.bind(_assertThisInitialized(_this));
    _this.getOptionRenderKey = _this.getOptionRenderKey.bind(_assertThisInitialized(_this));
    _this.isOptionDisabled = _this.isOptionDisabled.bind(_assertThisInitialized(_this));
    _this.getOptionGroupChildren = _this.getOptionGroupChildren.bind(_assertThisInitialized(_this));
    _this.getOptionGroupLabel = _this.getOptionGroupLabel.bind(_assertThisInitialized(_this));
    _this.getOptionGroupRenderKey = _this.getOptionGroupRenderKey.bind(_assertThisInitialized(_this));
    _this.getSelectedOptionIndex = _this.getSelectedOptionIndex.bind(_assertThisInitialized(_this));
    _this.isSelected = _this.isSelected.bind(_assertThisInitialized(_this));
    _this.overlayRef = /*#__PURE__*/React.createRef();
    _this.inputRef = /*#__PURE__*/React.createRef(_this.props.inputRef);
    return _this;
  }

  _createClass(Dropdown, [{
    key: "onClick",
    value: function onClick(event) {
      if (this.props.disabled) {
        return;
      }

      if (utils.DomHandler.hasClass(event.target, 'p-dropdown-clear-icon') || event.target.tagName === 'INPUT') {
        return;
      } else if (!this.overlayRef.current || !(this.overlayRef.current && this.overlayRef.current.contains(event.target))) {
        this.focusInput.focus();

        if (this.state.overlayVisible) {
          this.hideOverlay();
        } else {
          this.showOverlay();
        }
      }
    }
  }, {
    key: "onInputFocus",
    value: function onInputFocus(event) {
      var _this2 = this;

      event.persist();

      if (this.props.showOnFocus && !this.state.overlayVisible) {
        this.showOverlay();
      }

      this.setState({
        focused: true
      }, function () {
        if (_this2.props.onFocus) {
          _this2.props.onFocus(event);
        }
      });
    }
  }, {
    key: "onInputBlur",
    value: function onInputBlur(event) {
      var _this3 = this;

      event.persist();
      this.setState({
        focused: false
      }, function () {
        if (_this3.props.onBlur) {
          _this3.props.onBlur(event);
        }
      });
    }
  }, {
    key: "onPanelClick",
    value: function onPanelClick(event) {
      overlayservice.OverlayService.emit('overlay-click', {
        originalEvent: event,
        target: this.container
      });
    }
  }, {
    key: "onInputKeyDown",
    value: function onInputKeyDown(event) {
      switch (event.which) {
        //down
        case 40:
          this.onDownKey(event);
          break;
        //up

        case 38:
          this.onUpKey(event);
          break;
        //space

        case 32:
          if (this.state.overlayVisible) this.hideOverlay();else this.showOverlay();
          event.preventDefault();
          break;
        //enter

        case 13:
          this.hideOverlay();
          event.preventDefault();
          break;
        //escape and tab

        case 27:
        case 9:
          this.hideOverlay();
          break;

        default:
          this.search(event);
          break;
      }
    }
  }, {
    key: "onFilterInputKeyDown",
    value: function onFilterInputKeyDown(event) {
      switch (event.which) {
        //down
        case 40:
          this.onDownKey(event);
          break;
        //up

        case 38:
          this.onUpKey(event);
          break;
        //enter and escape

        case 13:
        case 27:
          this.hideOverlay();
          event.preventDefault();
          break;
      }
    }
  }, {
    key: "onUpKey",
    value: function onUpKey(event) {
      var visibleOptions = this.getVisibleOptions();

      if (visibleOptions) {
        var prevOption = this.findPrevOption(this.getSelectedOptionIndex());

        if (prevOption) {
          this.selectItem({
            originalEvent: event,
            option: prevOption
          });
        }
      }

      event.preventDefault();
    }
  }, {
    key: "onDownKey",
    value: function onDownKey(event) {
      var visibleOptions = this.getVisibleOptions();

      if (visibleOptions) {
        if (!this.state.overlayVisible && event.altKey) {
          this.showOverlay();
        } else {
          var nextOption = this.findNextOption(this.getSelectedOptionIndex());

          if (nextOption) {
            this.selectItem({
              originalEvent: event,
              option: nextOption
            });
          }
        }
      }

      event.preventDefault();
    }
  }, {
    key: "findNextOption",
    value: function findNextOption(index) {
      var visibleOptions = this.getVisibleOptions();

      if (this.props.optionGroupLabel) {
        var groupIndex = index === -1 ? 0 : index.group;
        var optionIndex = index === -1 ? -1 : index.option;
        var option = this.findNextOptionInList(this.getOptionGroupChildren(visibleOptions[groupIndex]), optionIndex);
        if (option) return option;else if (groupIndex + 1 !== visibleOptions.length) return this.findNextOption({
          group: groupIndex + 1,
          option: -1
        });else return null;
      } else {
        return this.findNextOptionInList(visibleOptions, index);
      }
    }
  }, {
    key: "findNextOptionInList",
    value: function findNextOptionInList(list, index) {
      var i = index + 1;

      if (i === list.length) {
        return null;
      }

      var option = list[i];
      if (this.isOptionDisabled(option)) return this.findNextOptionInList(i);else return option;
    }
  }, {
    key: "findPrevOption",
    value: function findPrevOption(index) {
      if (index === -1) {
        return null;
      }

      var visibleOptions = this.getVisibleOptions();

      if (this.props.optionGroupLabel) {
        var groupIndex = index.group;
        var optionIndex = index.option;
        var option = this.findPrevOptionInList(this.getOptionGroupChildren(visibleOptions[groupIndex]), optionIndex);
        if (option) return option;else if (groupIndex > 0) return this.findPrevOption({
          group: groupIndex - 1,
          option: this.getOptionGroupChildren(visibleOptions[groupIndex - 1]).length
        });else return null;
      } else {
        return this.findPrevOptionInList(visibleOptions, index);
      }
    }
  }, {
    key: "findPrevOptionInList",
    value: function findPrevOptionInList(list, index) {
      var i = index - 1;

      if (i < 0) {
        return null;
      }

      var option = list[i];
      if (this.isOptionDisabled(option)) return this.findPrevOption(i);else return option;
    }
  }, {
    key: "search",
    value: function search(event) {
      var _this4 = this;

      if (this.searchTimeout) {
        clearTimeout(this.searchTimeout);
      }

      var _char = event.key;
      this.previousSearchChar = this.currentSearchChar;
      this.currentSearchChar = _char;
      if (this.previousSearchChar === this.currentSearchChar) this.searchValue = this.currentSearchChar;else this.searchValue = this.searchValue ? this.searchValue + _char : _char;

      if (this.searchValue) {
        var searchIndex = this.getSelectedOptionIndex();
        var newOption = this.props.optionGroupLabel ? this.searchOptionInGroup(searchIndex) : this.searchOption(++searchIndex);

        if (newOption) {
          this.selectItem({
            originalEvent: event,
            option: newOption
          });
          this.selectedOptionUpdated = true;
        }
      }

      this.searchTimeout = setTimeout(function () {
        _this4.searchValue = null;
      }, 250);
    }
  }, {
    key: "searchOption",
    value: function searchOption(index) {
      var option;

      if (this.searchValue) {
        var visibleOptions = this.getVisibleOptions();
        option = this.searchOptionInRange(index, visibleOptions.length);

        if (!option) {
          option = this.searchOptionInRange(0, index);
        }
      }

      return option;
    }
  }, {
    key: "searchOptionInRange",
    value: function searchOptionInRange(start, end) {
      var visibleOptions = this.getVisibleOptions();

      for (var i = start; i < end; i++) {
        var opt = visibleOptions[i];

        if (this.matchesSearchValue(opt)) {
          return opt;
        }
      }

      return null;
    }
  }, {
    key: "searchOptionInGroup",
    value: function searchOptionInGroup(index) {
      var searchIndex = index === -1 ? {
        group: 0,
        option: -1
      } : index;
      var visibleOptions = this.getVisibleOptions();

      for (var i = searchIndex.group; i < visibleOptions.length; i++) {
        var groupOptions = this.getOptionGroupChildren(visibleOptions[i]);

        for (var j = searchIndex.group === i ? searchIndex.option + 1 : 0; j < groupOptions.length; j++) {
          if (this.matchesSearchValue(groupOptions[j])) {
            return groupOptions[j];
          }
        }
      }

      for (var _i = 0; _i <= searchIndex.group; _i++) {
        var _groupOptions = this.getOptionGroupChildren(visibleOptions[_i]);

        for (var _j = 0; _j < (searchIndex.group === _i ? searchIndex.option : _groupOptions.length); _j++) {
          if (this.matchesSearchValue(_groupOptions[_j])) {
            return _groupOptions[_j];
          }
        }
      }

      return null;
    }
  }, {
    key: "matchesSearchValue",
    value: function matchesSearchValue(option) {
      var label = this.getOptionLabel(option).toLocaleLowerCase(this.props.filterLocale);
      return label.startsWith(this.searchValue.toLocaleLowerCase(this.props.filterLocale));
    }
  }, {
    key: "onEditableInputChange",
    value: function onEditableInputChange(event) {
      if (this.props.onChange) {
        this.props.onChange({
          originalEvent: event.originalEvent,
          value: event.target.value,
          stopPropagation: function stopPropagation() {},
          preventDefault: function preventDefault() {},
          target: {
            name: this.props.name,
            id: this.props.id,
            value: event.target.value
          }
        });
      }
    }
  }, {
    key: "onEditableInputFocus",
    value: function onEditableInputFocus(event) {
      var _this5 = this;

      event.persist();
      this.setState({
        focused: true
      }, function () {
        _this5.hideOverlay();

        if (_this5.props.onFocus) {
          _this5.props.onFocus(event);
        }
      });
    }
  }, {
    key: "onOptionClick",
    value: function onOptionClick(event) {
      var option = event.option;

      if (!option.disabled) {
        this.selectItem(event);
        this.focusInput.focus();
      }

      this.hideOverlay();
    }
  }, {
    key: "onFilterInputChange",
    value: function onFilterInputChange(event) {
      var _this6 = this;

      var filter = event.target.value;
      this.setState({
        filter: filter
      }, function () {
        if (_this6.props.onFilter) {
          _this6.props.onFilter({
            originalEvent: event,
            filter: filter
          });
        }
      });
    }
  }, {
    key: "onFilterClearIconClick",
    value: function onFilterClearIconClick(callback) {
      this.resetFilter(callback);
    }
  }, {
    key: "resetFilter",
    value: function resetFilter(callback) {
      var _this7 = this;

      var filter = '';
      this.setState({
        filter: filter
      }, function () {
        _this7.props.onFilter && _this7.props.onFilter({
          filter: filter
        });
        callback && callback();
      });
    }
  }, {
    key: "clear",
    value: function clear(event) {
      if (this.props.onChange) {
        this.props.onChange({
          originalEvent: event,
          value: undefined,
          stopPropagation: function stopPropagation() {},
          preventDefault: function preventDefault() {},
          target: {
            name: this.props.name,
            id: this.props.id,
            value: undefined
          }
        });
      }

      this.updateEditableLabel();
    }
  }, {
    key: "selectItem",
    value: function selectItem(event) {
      var currentSelectedOption = this.getSelectedOption();

      if (currentSelectedOption !== event.option) {
        this.updateEditableLabel(event.option);
        var optionValue = this.getOptionValue(event.option);

        if (this.props.onChange) {
          this.props.onChange({
            originalEvent: event.originalEvent,
            value: optionValue,
            stopPropagation: function stopPropagation() {},
            preventDefault: function preventDefault() {},
            target: {
              name: this.props.name,
              id: this.props.id,
              value: optionValue
            }
          });
        }
      }
    }
  }, {
    key: "getSelectedOption",
    value: function getSelectedOption() {
      var index = this.getSelectedOptionIndex();
      var visibleOptions = this.getVisibleOptions();
      return index !== -1 ? this.props.optionGroupLabel ? this.getOptionGroupChildren(visibleOptions[index.group])[index.option] : visibleOptions[index] : null;
    }
  }, {
    key: "getSelectedOptionIndex",
    value: function getSelectedOptionIndex() {
      var visibleOptions = this.getVisibleOptions();

      if (this.props.value != null && visibleOptions) {
        if (this.props.optionGroupLabel) {
          for (var i = 0; i < visibleOptions.length; i++) {
            var selectedOptionIndex = this.findOptionIndexInList(this.props.value, this.getOptionGroupChildren(visibleOptions[i]));

            if (selectedOptionIndex !== -1) {
              return {
                group: i,
                option: selectedOptionIndex
              };
            }
          }
        } else {
          return this.findOptionIndexInList(this.props.value, visibleOptions);
        }
      }

      return -1;
    }
  }, {
    key: "findOptionIndexInList",
    value: function findOptionIndexInList(value, list) {
      var key = this.equalityKey();

      for (var i = 0; i < list.length; i++) {
        if (utils.ObjectUtils.equals(value, this.getOptionValue(list[i]), key)) {
          return i;
        }
      }

      return -1;
    }
  }, {
    key: "isSelected",
    value: function isSelected(option) {
      return utils.ObjectUtils.equals(this.props.value, this.getOptionValue(option), this.equalityKey());
    }
  }, {
    key: "equalityKey",
    value: function equalityKey() {
      return this.props.optionValue ? null : this.props.dataKey;
    }
  }, {
    key: "showOverlay",
    value: function showOverlay() {
      this.setState({
        overlayVisible: true
      });
    }
  }, {
    key: "hideOverlay",
    value: function hideOverlay() {
      this.setState({
        overlayVisible: false
      });
    }
  }, {
    key: "onOverlayEnter",
    value: function onOverlayEnter(callback) {
      utils.ZIndexUtils.set('overlay', this.overlayRef.current, PrimeReact__default["default"].autoZIndex, PrimeReact__default["default"].zIndex['overlay']);
      this.alignOverlay();
      callback && callback();
    }
  }, {
    key: "onOverlayEntered",
    value: function onOverlayEntered(callback) {
      callback && callback();
      this.bindDocumentClickListener();
      this.bindScrollListener();
      this.bindResizeListener();
      this.props.onShow && this.props.onShow();
    }
  }, {
    key: "onOverlayExit",
    value: function onOverlayExit() {
      this.unbindDocumentClickListener();
      this.unbindScrollListener();
      this.unbindResizeListener();
    }
  }, {
    key: "onOverlayExited",
    value: function onOverlayExited() {
      if (this.props.filter && this.props.resetFilterOnHide) {
        this.resetFilter();
      }

      utils.ZIndexUtils.clear(this.overlayRef.current);
      this.props.onHide && this.props.onHide();
    }
  }, {
    key: "alignOverlay",
    value: function alignOverlay() {
      utils.DomHandler.alignOverlay(this.overlayRef.current, this.input.parentElement, this.props.appendTo || PrimeReact__default["default"].appendTo);
    }
  }, {
    key: "scrollInView",
    value: function scrollInView() {
      var highlightItem = utils.DomHandler.findSingle(this.overlayRef.current, 'li.p-highlight');

      if (highlightItem) {
        highlightItem.scrollIntoView({
          block: 'nearest',
          inline: 'start'
        });
      }
    }
  }, {
    key: "bindDocumentClickListener",
    value: function bindDocumentClickListener() {
      var _this8 = this;

      if (!this.documentClickListener) {
        this.documentClickListener = function (event) {
          if (_this8.state.overlayVisible && _this8.isOutsideClicked(event)) {
            _this8.hideOverlay();
          }
        };

        document.addEventListener('click', this.documentClickListener);
      }
    }
  }, {
    key: "unbindDocumentClickListener",
    value: function unbindDocumentClickListener() {
      if (this.documentClickListener) {
        document.removeEventListener('click', this.documentClickListener);
        this.documentClickListener = null;
      }
    }
  }, {
    key: "bindScrollListener",
    value: function bindScrollListener() {
      var _this9 = this;

      if (!this.scrollHandler) {
        this.scrollHandler = new utils.ConnectedOverlayScrollHandler(this.container, function () {
          if (_this9.state.overlayVisible) {
            _this9.hideOverlay();
          }
        });
      }

      this.scrollHandler.bindScrollListener();
    }
  }, {
    key: "unbindScrollListener",
    value: function unbindScrollListener() {
      if (this.scrollHandler) {
        this.scrollHandler.unbindScrollListener();
      }
    }
  }, {
    key: "bindResizeListener",
    value: function bindResizeListener() {
      var _this10 = this;

      if (!this.resizeListener) {
        this.resizeListener = function () {
          if (_this10.state.overlayVisible && !utils.DomHandler.isTouchDevice()) {
            _this10.hideOverlay();
          }
        };

        window.addEventListener('resize', this.resizeListener);
      }
    }
  }, {
    key: "unbindResizeListener",
    value: function unbindResizeListener() {
      if (this.resizeListener) {
        window.removeEventListener('resize', this.resizeListener);
        this.resizeListener = null;
      }
    }
  }, {
    key: "isOutsideClicked",
    value: function isOutsideClicked(event) {
      return this.container && !(this.container.isSameNode(event.target) || this.isClearClicked(event) || this.container.contains(event.target) || this.overlayRef && this.overlayRef.current.contains(event.target));
    }
  }, {
    key: "isClearClicked",
    value: function isClearClicked(event) {
      return utils.DomHandler.hasClass(event.target, 'p-dropdown-clear-icon') || utils.DomHandler.hasClass(event.target, 'p-dropdown-filter-clear-icon');
    }
  }, {
    key: "updateEditableLabel",
    value: function updateEditableLabel(option) {
      if (this.input) {
        this.input.value = option ? this.getOptionLabel(option) : this.props.value || '';
      }
    }
  }, {
    key: "hasFilter",
    value: function hasFilter() {
      return this.state.filter && this.state.filter.trim().length > 0;
    }
  }, {
    key: "getOptionLabel",
    value: function getOptionLabel(option) {
      return this.props.optionLabel ? utils.ObjectUtils.resolveFieldData(option, this.props.optionLabel) : option && option['label'] !== undefined ? option['label'] : option;
    }
  }, {
    key: "getOptionValue",
    value: function getOptionValue(option) {
      return this.props.optionValue ? utils.ObjectUtils.resolveFieldData(option, this.props.optionValue) : option && option['value'] !== undefined ? option['value'] : option;
    }
  }, {
    key: "getOptionRenderKey",
    value: function getOptionRenderKey(option) {
      return this.props.dataKey ? utils.ObjectUtils.resolveFieldData(option, this.props.dataKey) : this.getOptionLabel(option);
    }
  }, {
    key: "isOptionDisabled",
    value: function isOptionDisabled(option) {
      if (this.props.optionDisabled) {
        return utils.ObjectUtils.isFunction(this.props.optionDisabled) ? this.props.optionDisabled(option) : utils.ObjectUtils.resolveFieldData(option, this.props.optionDisabled);
      }

      return option && option['disabled'] !== undefined ? option['disabled'] : false;
    }
  }, {
    key: "getOptionGroupRenderKey",
    value: function getOptionGroupRenderKey(optionGroup) {
      return utils.ObjectUtils.resolveFieldData(optionGroup, this.props.optionGroupLabel);
    }
  }, {
    key: "getOptionGroupLabel",
    value: function getOptionGroupLabel(optionGroup) {
      return utils.ObjectUtils.resolveFieldData(optionGroup, this.props.optionGroupLabel);
    }
  }, {
    key: "getOptionGroupChildren",
    value: function getOptionGroupChildren(optionGroup) {
      return utils.ObjectUtils.resolveFieldData(optionGroup, this.props.optionGroupChildren);
    }
  }, {
    key: "checkValidity",
    value: function checkValidity() {
      if (this.inputRef.current) {
        return this.inputRef.current.checkValidity();
      }

      return false;
    }
  }, {
    key: "isLazy",
    value: function isLazy() {
      return this.props.virtualScrollerOptions && this.props.virtualScrollerOptions.lazy;
    }
  }, {
    key: "getVisibleOptions",
    value: function getVisibleOptions() {
      if (this.hasFilter() && !this.isLazy()) {
        var filterValue = this.state.filter.trim().toLocaleLowerCase(this.props.filterLocale);
        var searchFields = this.props.filterBy ? this.props.filterBy.split(',') : [this.props.optionLabel || 'label'];

        if (this.props.optionGroupLabel) {
          var filteredGroups = [];

          var _iterator = _createForOfIteratorHelper(this.props.options),
              _step;

          try {
            for (_iterator.s(); !(_step = _iterator.n()).done;) {
              var optgroup = _step.value;
              var filteredSubOptions = PrimeReact.FilterService.filter(this.getOptionGroupChildren(optgroup), searchFields, filterValue, this.props.filterMatchMode, this.props.filterLocale);

              if (filteredSubOptions && filteredSubOptions.length) {
                filteredGroups.push(_objectSpread(_objectSpread({}, optgroup), {
                  items: filteredSubOptions
                }));
              }
            }
          } catch (err) {
            _iterator.e(err);
          } finally {
            _iterator.f();
          }

          return filteredGroups;
        } else {
          return PrimeReact.FilterService.filter(this.props.options, searchFields, filterValue, this.props.filterMatchMode, this.props.filterLocale);
        }
      } else {
        return this.props.options;
      }
    }
  }, {
    key: "updateInputField",
    value: function updateInputField() {
      if (this.props.editable && this.input) {
        var selectedOption = this.getSelectedOption();
        var label = selectedOption ? this.getOptionLabel(selectedOption) : null;
        var value = label || this.props.value || '';
        this.input.value = value;
      }
    }
  }, {
    key: "updateInputRef",
    value: function updateInputRef() {
      var ref = this.props.inputRef;

      if (ref) {
        if (typeof ref === 'function') {
          ref(this.inputRef.current);
        } else {
          ref.current = this.inputRef.current;
        }
      }
    }
  }, {
    key: "componentDidMount",
    value: function componentDidMount() {
      this.updateInputRef();

      if (this.props.autoFocus && this.focusInput) {
        this.focusInput.focus();
      }

      if (this.props.tooltip) {
        this.renderTooltip();
      }

      this.updateInputField();

      if (this.inputRef.current) {
        this.inputRef.current.selectedIndex = 1;
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      this.unbindDocumentClickListener();
      this.unbindResizeListener();

      if (this.scrollHandler) {
        this.scrollHandler.destroy();
        this.scrollHandler = null;
      }

      if (this.tooltip) {
        this.tooltip.destroy();
        this.tooltip = null;
      }

      if (this.hideTimeout) {
        clearTimeout(this.hideTimeout);
        this.hideTimeout = null;
      }

      utils.ZIndexUtils.clear(this.overlayRef.current);
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps) {
      if (this.state.overlayVisible) {
        if (this.props.filter) {
          this.alignOverlay();
        }

        if (prevProps.value !== this.props.value) {
          this.scrollInView();
        }
      }

      if (prevProps.tooltip !== this.props.tooltip || prevProps.tooltipOptions !== this.props.tooltipOptions) {
        if (this.tooltip) this.tooltip.update(_objectSpread({
          content: this.props.tooltip
        }, this.props.tooltipOptions || {}));else this.renderTooltip();
      }

      if (this.state.filter && (!this.props.options || this.props.options.length === 0)) {
        this.setState({
          filter: ''
        });
      }

      this.updateInputField();

      if (this.inputRef.current) {
        this.inputRef.current.selectedIndex = 1;
      }
    }
  }, {
    key: "renderHiddenSelect",
    value: function renderHiddenSelect(selectedOption) {
      var placeHolderOption = /*#__PURE__*/React__default["default"].createElement("option", {
        value: ""
      }, this.props.placeholder);
      var option = selectedOption ? /*#__PURE__*/React__default["default"].createElement("option", {
        value: selectedOption.value
      }, this.getOptionLabel(selectedOption)) : null;
      return /*#__PURE__*/React__default["default"].createElement("div", {
        className: "p-hidden-accessible p-dropdown-hidden-select"
      }, /*#__PURE__*/React__default["default"].createElement("select", {
        ref: this.inputRef,
        required: this.props.required,
        name: this.props.name,
        tabIndex: -1,
        "aria-hidden": "true"
      }, placeHolderOption, option));
    }
  }, {
    key: "renderTooltip",
    value: function renderTooltip() {
      this.tooltip = tooltip.tip({
        target: this.container,
        content: this.props.tooltip,
        options: this.props.tooltipOptions
      });
    }
  }, {
    key: "renderKeyboardHelper",
    value: function renderKeyboardHelper() {
      var _this11 = this;

      return /*#__PURE__*/React__default["default"].createElement("div", {
        className: "p-hidden-accessible"
      }, /*#__PURE__*/React__default["default"].createElement("input", {
        ref: function ref(el) {
          return _this11.focusInput = el;
        },
        id: this.props.inputId,
        type: "text",
        readOnly: true,
        "aria-haspopup": "listbox",
        onFocus: this.onInputFocus,
        onBlur: this.onInputBlur,
        onKeyDown: this.onInputKeyDown,
        disabled: this.props.disabled,
        tabIndex: this.props.tabIndex,
        "aria-label": this.props.ariaLabel,
        "aria-labelledby": this.props.ariaLabelledBy
      }));
    }
  }, {
    key: "renderLabel",
    value: function renderLabel(selectedOption) {
      var _this12 = this;

      var label = utils.ObjectUtils.isNotEmpty(selectedOption) ? this.getOptionLabel(selectedOption) : null;

      if (this.props.editable) {
        var value = label || this.props.value || '';
        return /*#__PURE__*/React__default["default"].createElement("input", {
          ref: function ref(el) {
            return _this12.input = el;
          },
          type: "text",
          defaultValue: value,
          className: "p-dropdown-label p-inputtext",
          disabled: this.props.disabled,
          placeholder: this.props.placeholder,
          maxLength: this.props.maxLength,
          onInput: this.onEditableInputChange,
          onFocus: this.onEditableInputFocus,
          onBlur: this.onInputBlur,
          "aria-label": this.props.ariaLabel,
          "aria-labelledby": this.props.ariaLabelledBy,
          "aria-haspopup": "listbox"
        });
      } else {
        var className = utils.classNames('p-dropdown-label p-inputtext', {
          'p-placeholder': label === null && this.props.placeholder,
          'p-dropdown-label-empty': label === null && !this.props.placeholder
        });
        var content = this.props.valueTemplate ? utils.ObjectUtils.getJSXElement(this.props.valueTemplate, selectedOption, this.props) : label || this.props.placeholder || 'empty';
        return /*#__PURE__*/React__default["default"].createElement("span", {
          ref: function ref(el) {
            return _this12.input = el;
          },
          className: className
        }, content);
      }
    }
  }, {
    key: "renderClearIcon",
    value: function renderClearIcon() {
      if (this.props.value != null && this.props.showClear && !this.props.disabled) {
        return /*#__PURE__*/React__default["default"].createElement("i", {
          className: "p-dropdown-clear-icon pi pi-times",
          onClick: this.clear
        });
      }

      return null;
    }
  }, {
    key: "renderDropdownIcon",
    value: function renderDropdownIcon() {
      var _this13 = this;

      var iconClassName = utils.classNames('p-dropdown-trigger-icon p-clickable', this.props.dropdownIcon);
      return /*#__PURE__*/React__default["default"].createElement("div", {
        ref: function ref(el) {
          return _this13.trigger = el;
        },
        className: "p-dropdown-trigger",
        role: "button",
        "aria-haspopup": "listbox",
        "aria-expanded": this.state.overlayVisible
      }, /*#__PURE__*/React__default["default"].createElement("span", {
        className: iconClassName
      }));
    }
  }, {
    key: "render",
    value: function render() {
      var _this14 = this;

      var className = utils.classNames('p-dropdown p-component p-inputwrapper', this.props.className, {
        'p-disabled': this.props.disabled,
        'p-focus': this.state.focused,
        'p-dropdown-clearable': this.props.showClear && !this.props.disabled,
        'p-inputwrapper-filled': this.props.value,
        'p-inputwrapper-focus': this.state.focused || this.state.overlayVisible
      });
      var visibleOptions = this.getVisibleOptions();
      var selectedOption = this.getSelectedOption();
      var appendTo = this.props.appendTo || PrimeReact__default["default"].appendTo;
      var hiddenSelect = this.renderHiddenSelect(selectedOption);
      var keyboardHelper = this.renderKeyboardHelper();
      var labelElement = this.renderLabel(selectedOption);
      var dropdownIcon = this.renderDropdownIcon();
      var clearIcon = this.renderClearIcon();
      return /*#__PURE__*/React__default["default"].createElement("div", {
        id: this.props.id,
        ref: function ref(el) {
          return _this14.container = el;
        },
        className: className,
        style: this.props.style,
        onClick: this.onClick,
        onMouseDown: this.props.onMouseDown,
        onContextMenu: this.props.onContextMenu
      }, keyboardHelper, hiddenSelect, labelElement, clearIcon, dropdownIcon, /*#__PURE__*/React__default["default"].createElement(DropdownPanel, _extends({
        ref: this.overlayRef,
        visibleOptions: visibleOptions
      }, this.props, {
        appendTo: appendTo,
        onClick: this.onPanelClick,
        onOptionClick: this.onOptionClick,
        filterValue: this.state.filter,
        hasFilter: this.hasFilter,
        onFilterClearIconClick: this.onFilterClearIconClick,
        onFilterInputKeyDown: this.onFilterInputKeyDown,
        onFilterInputChange: this.onFilterInputChange,
        getOptionLabel: this.getOptionLabel,
        getOptionRenderKey: this.getOptionRenderKey,
        isOptionDisabled: this.isOptionDisabled,
        getOptionGroupChildren: this.getOptionGroupChildren,
        getOptionGroupLabel: this.getOptionGroupLabel,
        getOptionGroupRenderKey: this.getOptionGroupRenderKey,
        isSelected: this.isSelected,
        getSelectedOptionIndex: this.getSelectedOptionIndex,
        "in": this.state.overlayVisible,
        onEnter: this.onOverlayEnter,
        onEntered: this.onOverlayEntered,
        onExit: this.onOverlayExit,
        onExited: this.onOverlayExited
      })));
    }
  }]);

  return Dropdown;
}(React.Component);

_defineProperty(Dropdown, "defaultProps", {
  id: null,
  inputRef: null,
  name: null,
  value: null,
  options: null,
  optionLabel: null,
  optionValue: null,
  optionDisabled: null,
  optionGroupLabel: null,
  optionGroupChildren: null,
  optionGroupTemplate: null,
  valueTemplate: null,
  itemTemplate: null,
  style: null,
  className: null,
  virtualScrollerOptions: null,
  scrollHeight: '200px',
  filter: false,
  filterBy: null,
  filterMatchMode: 'contains',
  filterPlaceholder: null,
  filterLocale: undefined,
  emptyMessage: null,
  emptyFilterMessage: null,
  editable: false,
  placeholder: null,
  required: false,
  disabled: false,
  appendTo: null,
  tabIndex: null,
  autoFocus: false,
  filterInputAutoFocus: true,
  resetFilterOnHide: false,
  showFilterClear: false,
  panelClassName: null,
  panelStyle: null,
  dataKey: null,
  inputId: null,
  showClear: false,
  maxLength: null,
  tooltip: null,
  tooltipOptions: null,
  ariaLabel: null,
  ariaLabelledBy: null,
  transitionOptions: null,
  dropdownIcon: 'pi pi-chevron-down',
  showOnFocus: false,
  onChange: null,
  onFocus: null,
  onBlur: null,
  onMouseDown: null,
  onContextMenu: null,
  onShow: null,
  onHide: null,
  onFilter: null
});

exports.Dropdown = Dropdown;