text: "use strict";
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports["default"] = void 0;
  
  var React = _interopRequireWildcard(require("react"));
  
  var _rcCascader = _interopRequireDefault(require("rc-cascader"));
  
  var _arrayTreeFilter = _interopRequireDefault(require("array-tree-filter"));
  
  var _classnames = _interopRequireDefault(require("classnames"));
  
  var _omit = _interopRequireDefault(require("omit.js"));
  
  var _KeyCode = _interopRequireDefault(require("rc-util/lib/KeyCode"));
  
  var _reactLifecyclesCompat = require("react-lifecycles-compat");
  
  var _input = _interopRequireDefault(require("../input"));
  
  var _icon = _interopRequireDefault(require("../icon"));
  
  var _configProvider = require("../config-provider");
  
  var _LocaleReceiver = _interopRequireDefault(require("../locale-provider/LocaleReceiver"));
  
  var _warning = _interopRequireDefault(require("../_util/warning"));
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
  
  function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
  
  function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
  
  function _typeof(obj) { 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 _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 _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 _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 _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 _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  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 _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  var __rest = void 0 && (void 0).__rest || function (s, e) {
    var t = {};
  
    for (var p in s) {
      if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];
    }
  
    if (s != null && typeof Object.getOwnPropertySymbols === "function") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
      if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];
    }
    return t;
  };
  
  // We limit the filtered item count by default
  var defaultLimit = 50;
  
  function highlightKeyword(str, keyword, prefixCls) {
    return str.split(keyword).map(function (node, index) {
      return index === 0 ? node : [React.createElement("span", {
        className: "".concat(prefixCls, "-menu-item-keyword"),
        key: "seperator"
      }, keyword), node];
    });
  }
  
  function defaultFilterOption(inputValue, path, names) {
    return path.some(function (option) {
      return option[names.label].indexOf(inputValue) > -1;
    });
  }
  
  function defaultRenderFilteredOption(inputValue, path, prefixCls, names) {
    return path.map(function (option, index) {
      var label = option[names.label];
      var node = label.indexOf(inputValue) > -1 ? highlightKeyword(label, inputValue, prefixCls) : label;
      return index === 0 ? node : [' / ', node];
    });
  }
  
  function defaultSortFilteredOption(a, b, inputValue, names) {
    function callback(elem) {
      return elem[names.label].indexOf(inputValue) > -1;
    }
  
    return a.findIndex(callback) - b.findIndex(callback);
  }
  
  function getFieldNames(props) {
    var fieldNames = props.fieldNames,
        filedNames = props.filedNames;
  
    if ('filedNames' in props) {
      return filedNames; // For old compatibility
    }
  
    return fieldNames;
  }
  
  function getFilledFieldNames(props) {
    var fieldNames = getFieldNames(props) || {};
    var names = {
      children: fieldNames.children || 'children',
      label: fieldNames.label || 'label',
      value: fieldNames.value || 'value'
    };
    return names;
  }
  
  function flattenTree(options, props) {
    var ancestor = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];
    var names = getFilledFieldNames(props);
    var flattenOptions = [];
    var childrenName = names.children;
    options.forEach(function (option) {
      var path = ancestor.concat(option);
  
      if (props.changeOnSelect || !option[childrenName] || !option[childrenName].length) {
        flattenOptions.push(path);
      }
  
      if (option[childrenName]) {
        flattenOptions = flattenOptions.concat(flattenTree(option[childrenName], props, path));
      }
    });
    return flattenOptions;
  }
  
  var defaultDisplayRender = function defaultDisplayRender(label) {
    return label.join(' / ');
  };
  
  function warningValueNotExist(list) {
    var fieldNames = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (list || []).forEach(function (item) {
      var valueFieldName = fieldNames.value || 'value';
      (0, _warning["default"])(valueFieldName in item, 'Cascader', 'Not found `value` in `options`.');
      warningValueNotExist(item[fieldNames.children || 'children'], fieldNames);
    });
  }
  
  var Cascader =
  /*#__PURE__*/
  function (_React$Component) {
    _inherits(Cascader, _React$Component);
  
    function Cascader(props) {
      var _this;
  
      _classCallCheck(this, Cascader);
  
      _this = _possibleConstructorReturn(this, _getPrototypeOf(Cascader).call(this, props));
      _this.cachedOptions = [];
  
      _this.setValue = function (value) {
        var selectedOptions = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
  
        if (!('value' in _this.props)) {
          _this.setState({
            value: value
          });
        }
  
        var onChange = _this.props.onChange;
  
        if (onChange) {
          onChange(value, selectedOptions);
        }
      };
  
      _this.saveInput = function (node) {
        _this.input = node;
      };
  
      _this.handleChange = function (value, selectedOptions) {
        _this.setState({
          inputValue: ''
        });
  
        if (selectedOptions[0].__IS_FILTERED_OPTION) {
          var unwrappedValue = value[0];
          var unwrappedSelectedOptions = selectedOptions[0].path;
  
          _this.setValue(unwrappedValue, unwrappedSelectedOptions);
  
          return;
        }
  
        _this.setValue(value, selectedOptions);
      };
  
      _this.handlePopupVisibleChange = function (popupVisible) {
        if (!('popupVisible' in _this.props)) {
          _this.setState(function (state) {
            return {
              popupVisible: popupVisible,
              inputFocused: popupVisible,
              inputValue: popupVisible ? state.inputValue : ''
            };
          });
        }
  
        var onPopupVisibleChange = _this.props.onPopupVisibleChange;
  
        if (onPopupVisibleChange) {
          onPopupVisibleChange(popupVisible);
        }
      };
  
      _this.handleInputBlur = function () {
        _this.setState({
          inputFocused: false
        });
      };
  
      _this.handleInputClick = function (e) {
        var _this$state = _this.state,
            inputFocused = _this$state.inputFocused,
            popupVisible = _this$state.popupVisible; // Prevent `Trigger` behaviour.
  
        if (inputFocused || popupVisible) {
          e.stopPropagation();
  
          if (e.nativeEvent.stopImmediatePropagation) {
            e.nativeEvent.stopImmediatePropagation();
          }
        }
      };
  
      _this.handleKeyDown = function (e) {
        // SPACE => https://github.com/ant-design/ant-design/issues/16871
        if (e.keyCode === _KeyCode["default"].BACKSPACE || e.keyCode === _KeyCode["default"].SPACE) {
          e.stopPropagation();
        }
      };
  
      _this.handleInputChange = function (e) {
        var inputValue = e.target.value;
  
        _this.setState({
          inputValue: inputValue
        });
      };
  
      _this.clearSelection = function (e) {
        e.preventDefault();
        e.stopPropagation();
  
        if (!_this.state.inputValue) {
          _this.setValue([]);
  
          _this.handlePopupVisibleChange(false);
        } else {
          _this.setState({
            inputValue: ''
          });
        }
      };
  
      _this.renderCascader = function (_ref, locale) {
        var _classNames, _classNames2, _classNames3, _classNames4;
  
        var getContextPopupContainer = _ref.getPopupContainer,
            getPrefixCls = _ref.getPrefixCls,
            renderEmpty = _ref.renderEmpty;
  
        var _assertThisInitialize = _assertThisInitialized(_this),
            props = _assertThisInitialize.props,
            state = _assertThisInitialize.state;
  
        var customizePrefixCls = props.prefixCls,
            customizeInputPrefixCls = props.inputPrefixCls,
            children = props.children,
            _props$placeholder = props.placeholder,
            placeholder = _props$placeholder === void 0 ? locale.placeholder || 'Please select' : _props$placeholder,
            size = props.size,
            disabled = props.disabled,
            className = props.className,
            style = props.style,
            allowClear = props.allowClear,
            _props$showSearch = props.showSearch,
            showSearch = _props$showSearch === void 0 ? false : _props$showSearch,
            suffixIcon = props.suffixIcon,
            notFoundContent = props.notFoundContent,
            otherProps = __rest(props, ["prefixCls", "inputPrefixCls", "children", "placeholder", "size", "disabled", "className", "style", "allowClear", "showSearch", "suffixIcon", "notFoundContent"]);
  
        var value = state.value,
            inputFocused = state.inputFocused;
        var prefixCls = getPrefixCls('cascader', customizePrefixCls);
        var inputPrefixCls = getPrefixCls('input', customizeInputPrefixCls);
        var sizeCls = (0, _classnames["default"])((_classNames = {}, _defineProperty(_classNames, "".concat(inputPrefixCls, "-lg"), size === 'large'), _defineProperty(_classNames, "".concat(inputPrefixCls, "-sm"), size === 'small'), _classNames));
        var clearIcon = allowClear && !disabled && value.length > 0 || state.inputValue ? React.createElement(_icon["default"], {
          type: "close-circle",
          theme: "filled",
          className: "".concat(prefixCls, "-picker-clear"),
          onClick: _this.clearSelection
        }) : null;
        var arrowCls = (0, _classnames["default"])((_classNames2 = {}, _defineProperty(_classNames2, "".concat(prefixCls, "-picker-arrow"), true), _defineProperty(_classNames2, "".concat(prefixCls, "-picker-arrow-expand"), state.popupVisible), _classNames2));
        var pickerCls = (0, _classnames["default"])(className, "".concat(prefixCls, "-picker"), (_classNames3 = {}, _defineProperty(_classNames3, "".concat(prefixCls, "-picker-with-value"), state.inputValue), _defineProperty(_classNames3, "".concat(prefixCls, "-picker-disabled"), disabled), _defineProperty(_classNames3, "".concat(prefixCls, "-picker-").concat(size), !!size), _defineProperty(_classNames3, "".concat(prefixCls, "-picker-show-search"), !!showSearch), _defineProperty(_classNames3, "".concat(prefixCls, "-picker-focused"), inputFocused), _classNames3)); // Fix bug of https://github.com/facebook/react/pull/5004
        // and https://fb.me/react-unknown-prop
  
        var inputProps = (0, _omit["default"])(otherProps, ['onChange', 'options', 'popupPlacement', 'transitionName', 'displayRender', 'onPopupVisibleChange', 'changeOnSelect', 'expandTrigger', 'popupVisible', 'getPopupContainer', 'loadData', 'popupClassName', 'filterOption', 'renderFilteredOption', 'sortFilteredOption', 'notFoundContent', 'fieldNames', 'filedNames']);
        var options = props.options;
        var names = getFilledFieldNames(_this.props);
  
        if (options && options.length > 0) {
          if (state.inputValue) {
            options = _this.generateFilteredOptions(prefixCls, renderEmpty);
          }
        } else {
          var _ref2;
  
          options = [(_ref2 = {}, _defineProperty(_ref2, names.label, notFoundContent || renderEmpty('Cascader')), _defineProperty(_ref2, names.value, 'ANT_CASCADER_NOT_FOUND'), _defineProperty(_ref2, "disabled", true), _ref2)];
        } // Dropdown menu should keep previous status until it is fully closed.
  
  
        if (!state.popupVisible) {
          options = _this.cachedOptions;
        } else {
          _this.cachedOptions = options;
        }
  
        var dropdownMenuColumnStyle = {};
        var isNotFound = (options || []).length === 1 && options[0][names.value] === 'ANT_CASCADER_NOT_FOUND';
  
        if (isNotFound) {
          dropdownMenuColumnStyle.height = 'auto'; // Height of one row.
        } // The default value of `matchInputWidth` is `true`
  
  
        var resultListMatchInputWidth = showSearch.matchInputWidth !== false;
  
        if (resultListMatchInputWidth && (state.inputValue || isNotFound) && _this.input) {
          dropdownMenuColumnStyle.width = _this.input.input.offsetWidth;
        }
  
        var inputIcon = suffixIcon && (React.isValidElement(suffixIcon) ? React.cloneElement(suffixIcon, {
          className: (0, _classnames["default"])((_classNames4 = {}, _defineProperty(_classNames4, suffixIcon.props.className, suffixIcon.props.className), _defineProperty(_classNames4, "".concat(prefixCls, "-picker-arrow"), true), _classNames4))
        }) : React.createElement("span", {
          className: "".concat(prefixCls, "-picker-arrow")
        }, suffixIcon)) || React.createElement(_icon["default"], {
          type: "down",
          className: arrowCls
        });
        var input = children || React.createElement("span", {
          style: style,
          className: pickerCls
        }, React.createElement("span", {
          className: "".concat(prefixCls, "-picker-label")
        }, _this.getLabel()), React.createElement(_input["default"], _extends({}, inputProps, {
          tabIndex: "-1",
          ref: _this.saveInput,
          prefixCls: inputPrefixCls,
          placeholder: value && value.length > 0 ? undefined : placeholder,
          className: "".concat(prefixCls, "-input ").concat(sizeCls),
          value: state.inputValue,
          disabled: disabled,
          readOnly: !showSearch,
          autoComplete: inputProps.autoComplete || 'off',
          onClick: showSearch ? _this.handleInputClick : undefined,
          onBlur: showSearch ? _this.handleInputBlur : undefined,
          onKeyDown: _this.handleKeyDown,
          onChange: showSearch ? _this.handleInputChange : undefined
        })), clearIcon, inputIcon);
        var expandIcon = React.createElement(_icon["default"], {
          type: "right"
        });
        var loadingIcon = React.createElement("span", {
          className: "".concat(prefixCls, "-menu-item-loading-icon")
        }, React.createElement(_icon["default"], {
          type: "redo",
          spin: true
        }));
        var getPopupContainer = props.getPopupContainer || getContextPopupContainer;
        var rest = (0, _omit["default"])(props, ['inputIcon', 'expandIcon', 'loadingIcon']);
        return React.createElement(_rcCascader["default"], _extends({}, rest, {
          prefixCls: prefixCls,
          getPopupContainer: getPopupContainer,
          options: options,
          value: value,
          popupVisible: state.popupVisible,
          onPopupVisibleChange: _this.handlePopupVisibleChange,
          onChange: _this.handleChange,
          dropdownMenuColumnStyle: dropdownMenuColumnStyle,
          expandIcon: expandIcon,
          loadingIcon: loadingIcon
        }), input);
      };
  
      _this.state = {
        value: props.value || props.defaultValue || [],
        inputValue: '',
        inputFocused: false,
        popupVisible: props.popupVisible,
        flattenOptions: props.showSearch ? flattenTree(props.options, props) : undefined,
        prevProps: props
      };
      return _this;
    }
  
    _createClass(Cascader, [{
      key: "getLabel",
      value: function getLabel() {
        var _this$props = this.props,
            options = _this$props.options,
            _this$props$displayRe = _this$props.displayRender,
            displayRender = _this$props$displayRe === void 0 ? defaultDisplayRender : _this$props$displayRe;
        var names = getFilledFieldNames(this.props);
        var value = this.state.value;
        var unwrappedValue = Array.isArray(value[0]) ? value[0] : value;
        var selectedOptions = (0, _arrayTreeFilter["default"])(options, function (o, level) {
          return o[names.value] === unwrappedValue[level];
        }, {
          childrenKeyName: names.children
        });
        var label = selectedOptions.map(function (o) {
          return o[names.label];
        });
        return displayRender(label, selectedOptions);
      }
    }, {
      key: "generateFilteredOptions",
      value: function generateFilteredOptions(prefixCls, renderEmpty) {
        var _this2 = this,
            _ref4;
  
        var _this$props2 = this.props,
            showSearch = _this$props2.showSearch,
            notFoundContent = _this$props2.notFoundContent;
        var names = getFilledFieldNames(this.props);
        var _showSearch$filter = showSearch.filter,
            filter = _showSearch$filter === void 0 ? defaultFilterOption : _showSearch$filter,
            _showSearch$render = showSearch.render,
            render = _showSearch$render === void 0 ? defaultRenderFilteredOption : _showSearch$render,
            _showSearch$sort = showSearch.sort,
            sort = _showSearch$sort === void 0 ? defaultSortFilteredOption : _showSearch$sort,
            _showSearch$limit = showSearch.limit,
            limit = _showSearch$limit === void 0 ? defaultLimit : _showSearch$limit;
        var _this$state2 = this.state,
            _this$state2$flattenO = _this$state2.flattenOptions,
            flattenOptions = _this$state2$flattenO === void 0 ? [] : _this$state2$flattenO,
            inputValue = _this$state2.inputValue; // Limit the filter if needed
  
        var filtered;
  
        if (limit > 0) {
          filtered = [];
          var matchCount = 0; // Perf optimization to filter items only below the limit
  
          flattenOptions.some(function (path) {
            var match = filter(_this2.state.inputValue, path, names);
  
            if (match) {
              filtered.push(path);
              matchCount += 1;
            }
  
            return matchCount >= limit;
          });
        } else {
          (0, _warning["default"])(typeof limit !== 'number', 'Cascader', "'limit' of showSearch should be positive number or false.");
          filtered = flattenOptions.filter(function (path) {
            return filter(_this2.state.inputValue, path, names);
          });
        }
  
        filtered.sort(function (a, b) {
          return sort(a, b, inputValue, names);
        });
  
        if (filtered.length > 0) {
          return filtered.map(function (path) {
            var _ref3;
  
            return _ref3 = {
              __IS_FILTERED_OPTION: true,
              path: path
            }, _defineProperty(_ref3, names.label, render(inputValue, path, prefixCls, names)), _defineProperty(_ref3, names.value, path.map(function (o) {
              return o[names.value];
            })), _defineProperty(_ref3, "disabled", path.some(function (o) {
              return !!o.disabled;
            })), _ref3;
          });
        }
  
        return [(_ref4 = {}, _defineProperty(_ref4, names.label, notFoundContent || renderEmpty('Cascader')), _defineProperty(_ref4, names.value, 'ANT_CASCADER_NOT_FOUND'), _defineProperty(_ref4, "disabled", true), _ref4)];
      }
    }, {
      key: "focus",
      value: function focus() {
        this.input.focus();
      }
    }, {
      key: "blur",
      value: function blur() {
        this.input.blur();
      }
    }, {
      key: "render",
      value: function render() {
        var _this3 = this;
  
        return React.createElement(_configProvider.ConfigConsumer, null, function (configArgument) {
          return React.createElement(_LocaleReceiver["default"], null, function (locale) {
            return _this3.renderCascader(configArgument, locale);
          });
        });
      }
    }], [{
      key: "getDerivedStateFromProps",
      value: function getDerivedStateFromProps(nextProps, _ref5) {
        var prevProps = _ref5.prevProps;
        var newState = {
          prevProps: nextProps
        };
  
        if ('value' in nextProps) {
          newState.value = nextProps.value || [];
        }
  
        if ('popupVisible' in nextProps) {
          newState.popupVisible = nextProps.popupVisible;
        }
  
        if (nextProps.showSearch && prevProps.options !== nextProps.options) {
          newState.flattenOptions = flattenTree(nextProps.options, nextProps);
        }
  
        if (process.env.NODE_ENV !== 'production' && nextProps.options) {
          warningValueNotExist(nextProps.options, getFieldNames(nextProps));
        }
  
        return newState;
      }
    }]);
  
    return Cascader;
  }(React.Component);
  
  Cascader.defaultProps = {
    transitionName: 'slide-up',
    popupPlacement: 'bottomLeft',
    options: [],
    disabled: false,
    allowClear: true
  };
  (0, _reactLifecyclesCompat.polyfill)(Cascader);
  var _default = Cascader;
  exports["default"] = _default;
  //# sourceMappingURL=index.js.map
  