"use strict";

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); }

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var React = _interopRequireWildcard(require("react"));

var _KeyCode = _interopRequireDefault(require("rc-util/lib/KeyCode"));

var _useMemo = _interopRequireDefault(require("rc-util/lib/hooks/useMemo"));

var _classnames = _interopRequireDefault(require("classnames"));

var _rcVirtualList = _interopRequireDefault(require("rc-virtual-list"));

var _TransBtn = _interopRequireDefault(require("./TransBtn"));

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 _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 _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

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(n); 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 _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

/**
 * Using virtual list of option display.
 * Will fallback to dom if use customize render.
 */
var OptionList = function OptionList(_ref, ref) {
  var prefixCls = _ref.prefixCls,
      id = _ref.id,
      flattenOptions = _ref.flattenOptions,
      childrenAsData = _ref.childrenAsData,
      values = _ref.values,
      searchValue = _ref.searchValue,
      multiple = _ref.multiple,
      defaultActiveFirstOption = _ref.defaultActiveFirstOption,
      height = _ref.height,
      itemHeight = _ref.itemHeight,
      notFoundContent = _ref.notFoundContent,
      open = _ref.open,
      menuItemSelectedIcon = _ref.menuItemSelectedIcon,
      virtual = _ref.virtual,
      onSelect = _ref.onSelect,
      onToggleOpen = _ref.onToggleOpen,
      onActiveValue = _ref.onActiveValue,
      onScroll = _ref.onScroll;
  var itemPrefixCls = "".concat(prefixCls, "-item");
  var memoFlattenOptions = (0, _useMemo.default)(function () {
    return flattenOptions;
  }, [open, flattenOptions], function (prev, next) {
    return next[0] && prev[1] !== next[1];
  }); // =========================== List ===========================

  var listRef = React.useRef(null);

  var onListMouseDown = function onListMouseDown(event) {
    event.preventDefault();
  };

  var scrollIntoView = function scrollIntoView(index) {
    if (listRef.current) {
      listRef.current.scrollTo({
        index: index
      });
    }
  }; // ========================== Active ==========================


  var getEnabledActiveIndex = function getEnabledActiveIndex(index) {
    var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
    var len = memoFlattenOptions.length;

    for (var i = 0; i < len; i += 1) {
      var current = (index + i * offset + len) % len;
      var _memoFlattenOptions$c = memoFlattenOptions[current],
          group = _memoFlattenOptions$c.group,
          data = _memoFlattenOptions$c.data;

      if (!group && !data.disabled) {
        return current;
      }
    }

    return -1;
  };

  var _React$useState = React.useState(function () {
    return getEnabledActiveIndex(0);
  }),
      _React$useState2 = _slicedToArray(_React$useState, 2),
      activeIndex = _React$useState2[0],
      setActiveIndex = _React$useState2[1];

  var setActive = function setActive(index) {
    setActiveIndex(index); // Trigger active event

    var flattenItem = memoFlattenOptions[index];

    if (!flattenItem) {
      onActiveValue(null, -1);
      return;
    }

    onActiveValue(flattenItem.data.value, index);
  }; // Auto active first item when list length or searchValue changed


  React.useEffect(function () {
    setActive(defaultActiveFirstOption !== false ? getEnabledActiveIndex(0) : -1);
  }, [memoFlattenOptions.length, searchValue]); // Auto scroll to item position in single mode

  React.useEffect(function () {
    /**
     * React will skip `onChange` when component update.
     * `setActive` function will call root accessibility state update which makes re-render.
     * So we need to delay to let Input component trigger onChange first.
     */
    var timeoutId = setTimeout(function () {
      if (!multiple && open && values.size === 1) {
        var value = Array.from(values)[0];
        var index = memoFlattenOptions.findIndex(function (_ref2) {
          var data = _ref2.data;
          return data.value === value;
        });
        setActive(index);
        scrollIntoView(index);
      }
    });
    return function () {
      return clearTimeout(timeoutId);
    };
  }, [open]); // ========================== Values ==========================

  var onSelectValue = function onSelectValue(value) {
    if (value !== undefined) {
      onSelect(value, {
        selected: !values.has(value)
      });
    } // Single mode should always close by select


    if (!multiple) {
      onToggleOpen(false);
    }
  }; // ========================= Keyboard =========================


  React.useImperativeHandle(ref, function () {
    return {
      onKeyDown: function onKeyDown(event) {
        var which = event.which;

        switch (which) {
          // >>> Arrow keys
          case _KeyCode.default.UP:
          case _KeyCode.default.DOWN:
            {
              var offset = 0;

              if (which === _KeyCode.default.UP) {
                offset = -1;
              } else if (which === _KeyCode.default.DOWN) {
                offset = 1;
              }

              if (offset !== 0) {
                var nextActiveIndex = getEnabledActiveIndex(activeIndex + offset, offset);
                scrollIntoView(nextActiveIndex);
                setActive(nextActiveIndex);
              }

              break;
            }
          // >>> Select

          case _KeyCode.default.ENTER:
            {
              // value
              var item = memoFlattenOptions[activeIndex];

              if (item && !item.data.disabled) {
                onSelectValue(item.data.value);
              } else {
                onSelectValue(undefined);
              }

              if (open) {
                event.preventDefault();
              }

              break;
            }
          // >>> Close

          case _KeyCode.default.ESC:
            {
              onToggleOpen(false);
            }
        }
      },
      onKeyUp: function onKeyUp() {},
      scrollTo: function scrollTo(index) {
        scrollIntoView(index);
      }
    };
  }); // ========================== Render ==========================

  if (memoFlattenOptions.length === 0) {
    return React.createElement("div", {
      role: "listbox",
      id: "".concat(id, "_list"),
      className: "".concat(itemPrefixCls, "-empty"),
      onMouseDown: onListMouseDown
    }, notFoundContent);
  }

  function renderItem(index) {
    var item = memoFlattenOptions[index];
    var value = item && item.data.value;
    return item ? React.createElement("div", {
      key: index,
      role: "option",
      id: "".concat(id, "_list_").concat(index),
      "aria-selected": values.has(value)
    }, value) : null;
  }

  return React.createElement(React.Fragment, null, React.createElement("div", {
    role: "listbox",
    id: "".concat(id, "_list"),
    style: {
      height: 0,
      overflow: 'hidden'
    }
  }, renderItem(activeIndex - 1), renderItem(activeIndex), renderItem(activeIndex + 1)), React.createElement(_rcVirtualList.default, {
    itemKey: "key",
    ref: listRef,
    data: memoFlattenOptions,
    height: height,
    itemHeight: itemHeight,
    fullHeight: false,
    onMouseDown: onListMouseDown,
    onScroll: onScroll,
    virtual: virtual
  }, function (_ref3, itemIndex) {
    var _classNames;

    var group = _ref3.group,
        groupOption = _ref3.groupOption,
        data = _ref3.data;
    var label = data.label,
        key = data.key; // Group

    if (group) {
      return React.createElement("div", {
        className: (0, _classnames.default)(itemPrefixCls, "".concat(itemPrefixCls, "-group"))
      }, label !== undefined ? label : key);
    }

    var disabled = data.disabled,
        value = data.value,
        title = data.title,
        children = data.children,
        style = data.style,
        className = data.className,
        otherProps = _objectWithoutProperties(data, ["disabled", "value", "title", "children", "style", "className"]); // Option


    var selected = values.has(value);
    var optionPrefixCls = "".concat(itemPrefixCls, "-option");
    var optionClassName = (0, _classnames.default)(itemPrefixCls, optionPrefixCls, className, (_classNames = {}, _defineProperty(_classNames, "".concat(optionPrefixCls, "-grouped"), groupOption), _defineProperty(_classNames, "".concat(optionPrefixCls, "-active"), activeIndex === itemIndex && !disabled), _defineProperty(_classNames, "".concat(optionPrefixCls, "-disabled"), disabled), _defineProperty(_classNames, "".concat(optionPrefixCls, "-selected"), selected), _classNames));
    var mergedLabel = childrenAsData ? children : label;
    var iconVisible = !menuItemSelectedIcon || typeof menuItemSelectedIcon === 'function' || selected;
    return React.createElement("div", Object.assign({}, otherProps, {
      "aria-selected": selected,
      className: optionClassName,
      title: title,
      onMouseMove: function onMouseMove() {
        if (activeIndex === itemIndex || disabled) {
          return;
        }

        setActive(itemIndex);
      },
      onClick: function onClick() {
        if (!disabled) {
          onSelectValue(value);
        }
      },
      style: style
    }), React.createElement("div", {
      className: "".concat(optionPrefixCls, "-content")
    }, mergedLabel || value), React.isValidElement(menuItemSelectedIcon) || selected, iconVisible && React.createElement(_TransBtn.default, {
      className: "".concat(itemPrefixCls, "-option-state"),
      customizeIcon: menuItemSelectedIcon,
      customizeIconProps: {
        isSelected: selected
      }
    }, selected ? '✓' : null));
  }));
};

var RefOptionList = React.forwardRef(OptionList);
RefOptionList.displayName = 'OptionList';
var _default = RefOptionList;
exports.default = _default;