{"ast":null,"code":"import _defineProperty from \"@babel/runtime/helpers/esm/defineProperty\";\nimport _objectSpread from \"@babel/runtime/helpers/esm/objectSpread2\";\nimport _toConsumableArray from \"@babel/runtime/helpers/esm/toConsumableArray\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport { useMemo } from 'react';\nimport classNames from 'classnames';\nimport { fillRef } from \"rc-util/es/ref\";\nimport Header from './Header';\nimport ColGroup from '../ColGroup';\nimport TableContext from '../context/TableContext';\n\nfunction useColumnWidth(colWidths, columCount) {\n  return useMemo(function () {\n    var cloneColumns = [];\n\n    for (var i = 0; i < columCount; i += 1) {\n      var val = colWidths[i];\n\n      if (val !== undefined) {\n        cloneColumns[i] = val;\n      } else {\n        return null;\n      }\n    }\n\n    return cloneColumns;\n  }, [colWidths.join('_'), columCount]);\n}\n\nvar FixedHeader = React.forwardRef(function (_ref, ref) {\n  var noData = _ref.noData,\n      columns = _ref.columns,\n      flattenColumns = _ref.flattenColumns,\n      colWidths = _ref.colWidths,\n      columCount = _ref.columCount,\n      stickyOffsets = _ref.stickyOffsets,\n      direction = _ref.direction,\n      fixHeader = _ref.fixHeader,\n      offsetHeader = _ref.offsetHeader,\n      stickyClassName = _ref.stickyClassName,\n      onScroll = _ref.onScroll,\n      props = _objectWithoutProperties(_ref, [\"noData\", \"columns\", \"flattenColumns\", \"colWidths\", \"columCount\", \"stickyOffsets\", \"direction\", \"fixHeader\", \"offsetHeader\", \"stickyClassName\", \"onScroll\"]);\n\n  var _React$useContext = React.useContext(TableContext),\n      prefixCls = _React$useContext.prefixCls,\n      scrollbarSize = _React$useContext.scrollbarSize,\n      isSticky = _React$useContext.isSticky;\n\n  var combinationScrollBarSize = isSticky && !fixHeader ? 0 : scrollbarSize; // Pass wheel to scroll event\n\n  var scrollRef = React.useRef(null);\n  var setScrollRef = React.useCallback(function (element) {\n    fillRef(ref, element);\n    fillRef(scrollRef, element);\n  }, []);\n  React.useEffect(function () {\n    var _scrollRef$current;\n\n    function onWheel(e) {\n      var currentTarget = e.currentTarget,\n          deltaX = e.deltaX;\n\n      if (deltaX) {\n        onScroll({\n          currentTarget: currentTarget,\n          scrollLeft: currentTarget.scrollLeft + deltaX\n        });\n        e.preventDefault();\n      }\n    }\n\n    (_scrollRef$current = scrollRef.current) === null || _scrollRef$current === void 0 ? void 0 : _scrollRef$current.addEventListener('wheel', onWheel);\n    return function () {\n      var _scrollRef$current2;\n\n      (_scrollRef$current2 = scrollRef.current) === null || _scrollRef$current2 === void 0 ? void 0 : _scrollRef$current2.removeEventListener('wheel', onWheel);\n    };\n  }, []); // Add scrollbar column\n\n  var lastColumn = flattenColumns[flattenColumns.length - 1];\n  var ScrollBarColumn = {\n    fixed: lastColumn ? lastColumn.fixed : null,\n    onHeaderCell: function onHeaderCell() {\n      return {\n        className: \"\".concat(prefixCls, \"-cell-scrollbar\")\n      };\n    }\n  };\n  var columnsWithScrollbar = useMemo(function () {\n    return combinationScrollBarSize ? [].concat(_toConsumableArray(columns), [ScrollBarColumn]) : columns;\n  }, [combinationScrollBarSize, columns]);\n  var flattenColumnsWithScrollbar = useMemo(function () {\n    return combinationScrollBarSize ? [].concat(_toConsumableArray(flattenColumns), [ScrollBarColumn]) : flattenColumns;\n  }, [combinationScrollBarSize, flattenColumns]); // Calculate the sticky offsets\n\n  var headerStickyOffsets = useMemo(function () {\n    var right = stickyOffsets.right,\n        left = stickyOffsets.left;\n    return _objectSpread(_objectSpread({}, stickyOffsets), {}, {\n      left: direction === 'rtl' ? [].concat(_toConsumableArray(left.map(function (width) {\n        return width + combinationScrollBarSize;\n      })), [0]) : left,\n      right: direction === 'rtl' ? right : [].concat(_toConsumableArray(right.map(function (width) {\n        return width + combinationScrollBarSize;\n      })), [0]),\n      isSticky: isSticky\n    });\n  }, [combinationScrollBarSize, stickyOffsets, isSticky]);\n  var mergedColumnWidth = useColumnWidth(colWidths, columCount);\n  return React.createElement(\"div\", {\n    style: _objectSpread({\n      overflow: 'hidden'\n    }, isSticky ? {\n      top: offsetHeader\n    } : {}),\n    ref: setScrollRef,\n    className: classNames(\"\".concat(prefixCls, \"-header\"), _defineProperty({}, stickyClassName, !!stickyClassName))\n  }, React.createElement(\"table\", {\n    style: {\n      tableLayout: 'fixed',\n      visibility: noData || mergedColumnWidth ? null : 'hidden'\n    }\n  }, React.createElement(ColGroup, {\n    colWidths: mergedColumnWidth ? [].concat(_toConsumableArray(mergedColumnWidth), [combinationScrollBarSize]) : [],\n    columCount: columCount + 1,\n    columns: flattenColumnsWithScrollbar\n  }), React.createElement(Header, Object.assign({}, props, {\n    stickyOffsets: headerStickyOffsets,\n    columns: columnsWithScrollbar,\n    flattenColumns: flattenColumnsWithScrollbar\n  }))));\n});\nFixedHeader.displayName = 'FixedHeader';\nexport default 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React.forwardRef(function (_ref, ref) {\n  var noData = _ref.noData,\n      columns = _ref.columns,\n      flattenColumns = _ref.flattenColumns,\n      colWidths = _ref.colWidths,\n      columCount = _ref.columCount,\n      stickyOffsets = _ref.stickyOffsets,\n      direction = _ref.direction,\n      fixHeader = _ref.fixHeader,\n      offsetHeader = _ref.offsetHeader,\n      stickyClassName = _ref.stickyClassName,\n      onScroll = _ref.onScroll,\n      props = _objectWithoutProperties(_ref, [\"noData\", \"columns\", \"flattenColumns\", \"colWidths\", \"columCount\", \"stickyOffsets\", \"direction\", \"fixHeader\", \"offsetHeader\", \"stickyClassName\", \"onScroll\"]);\n\n  var _React$useContext = React.useContext(TableContext),\n      prefixCls = _React$useContext.prefixCls,\n      scrollbarSize = _React$useContext.scrollbarSize,\n      isSticky = _React$useContext.isSticky;\n\n  var combinationScrollBarSize = isSticky && !fixHeader ? 0 : scrollbarSize; // Pass wheel to scroll event\n\n  var scrollRef = React.useRef(null);\n  var setScrollRef = React.useCallback(function (element) {\n    fillRef(ref, element);\n    fillRef(scrollRef, element);\n  }, []);\n  React.useEffect(function () {\n    var _scrollRef$current;\n\n    function onWheel(e) {\n      var currentTarget = e.currentTarget,\n          deltaX = e.deltaX;\n\n      if (deltaX) {\n        onScroll({\n          currentTarget: currentTarget,\n          scrollLeft: currentTarget.scrollLeft + deltaX\n        });\n        e.preventDefault();\n      }\n    }\n\n    (_scrollRef$current = scrollRef.current) === null || _scrollRef$current === void 0 ? void 0 : _scrollRef$current.addEventListener('wheel', onWheel);\n    return function () {\n      var _scrollRef$current2;\n\n      (_scrollRef$current2 = scrollRef.current) === null || _scrollRef$current2 === void 0 ? void 0 : _scrollRef$current2.removeEventListener('wheel', onWheel);\n    };\n  }, []); // Add scrollbar column\n\n  var lastColumn = flattenColumns[flattenColumns.length - 1];\n  var ScrollBarColumn = {\n    fixed: lastColumn ? lastColumn.fixed : null,\n    onHeaderCell: function onHeaderCell() {\n      return {\n        className: \"\".concat(prefixCls, \"-cell-scrollbar\")\n      };\n    }\n  };\n  var columnsWithScrollbar = useMemo(function () {\n    return combinationScrollBarSize ? [].concat(_toConsumableArray(columns), [ScrollBarColumn]) : columns;\n  }, [combinationScrollBarSize, columns]);\n  var flattenColumnsWithScrollbar = useMemo(function () {\n    return combinationScrollBarSize ? [].concat(_toConsumableArray(flattenColumns), [ScrollBarColumn]) : flattenColumns;\n  }, [combinationScrollBarSize, flattenColumns]); // Calculate the sticky offsets\n\n  var headerStickyOffsets = useMemo(function () {\n    var right = stickyOffsets.right,\n        left = stickyOffsets.left;\n    return _objectSpread(_objectSpread({}, stickyOffsets), {}, {\n      left: direction === 'rtl' ? [].concat(_toConsumableArray(left.map(function (width) {\n        return width + combinationScrollBarSize;\n      })), [0]) : left,\n      right: direction === 'rtl' ? right : [].concat(_toConsumableArray(right.map(function (width) {\n        return width + combinationScrollBarSize;\n      })), [0]),\n      isSticky: isSticky\n    });\n  }, [combinationScrollBarSize, stickyOffsets, isSticky]);\n  var mergedColumnWidth = useColumnWidth(colWidths, columCount);\n  return React.createElement(\"div\", {\n    style: _objectSpread({\n      overflow: 'hidden'\n    }, isSticky ? {\n      top: offsetHeader\n    } : {}),\n    ref: setScrollRef,\n    className: classNames(\"\".concat(prefixCls, \"-header\"), _defineProperty({}, stickyClassName, !!stickyClassName))\n  }, React.createElement(\"table\", {\n    style: {\n      tableLayout: 'fixed',\n      visibility: noData || mergedColumnWidth ? null : 'hidden'\n    }\n  }, React.createElement(ColGroup, {\n    colWidths: mergedColumnWidth ? [].concat(_toConsumableArray(mergedColumnWidth), [combinationScrollBarSize]) : [],\n    columCount: columCount + 1,\n    columns: flattenColumnsWithScrollbar\n  }), React.createElement(Header, Object.assign({}, props, {\n    stickyOffsets: headerStickyOffsets,\n    columns: columnsWithScrollbar,\n    flattenColumns: flattenColumnsWithScrollbar\n  }))));\n});\nFixedHeader.displayName = 'FixedHeader';\nexport default FixedHeader;"]},"metadata":{},"sourceType":"module"}