1 | import _extends from "@babel/runtime/helpers/esm/extends";
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2 | import _objectSpread from "@babel/runtime/helpers/esm/objectSpread2";
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3 | import _typeof from "@babel/runtime/helpers/esm/typeof";
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4 | import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
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5 | import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
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6 | import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
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7 | var _excluded = ["prefixCls", "className", "height", "itemHeight", "fullHeight", "style", "data", "children", "itemKey", "virtual", "direction", "scrollWidth", "component", "onScroll", "onVirtualScroll", "onVisibleChange", "innerProps", "extraRender"];
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8 | import * as React from 'react';
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9 | import { useRef, useState } from 'react';
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10 | import { flushSync } from 'react-dom';
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11 | import classNames from 'classnames';
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12 | import ResizeObserver from 'rc-resize-observer';
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13 | import Filler from './Filler';
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14 | import ScrollBar from './ScrollBar';
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15 | import useChildren from './hooks/useChildren';
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16 | import useHeights from './hooks/useHeights';
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17 | import useScrollTo from './hooks/useScrollTo';
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18 | import useDiffItem from './hooks/useDiffItem';
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19 | import useFrameWheel from './hooks/useFrameWheel';
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20 | import useMobileTouchMove from './hooks/useMobileTouchMove';
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21 | import useOriginScroll from './hooks/useOriginScroll';
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22 | import useLayoutEffect from "rc-util/es/hooks/useLayoutEffect";
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23 | import { getSpinSize } from './utils/scrollbarUtil';
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24 | import { useEvent } from 'rc-util';
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25 | var EMPTY_DATA = [];
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26 | var ScrollStyle = {
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27 | overflowY: 'auto',
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28 | overflowAnchor: 'none'
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29 | };
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30 | export function RawList(props, ref) {
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31 | var _props$prefixCls = props.prefixCls,
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32 | prefixCls = _props$prefixCls === void 0 ? 'rc-virtual-list' : _props$prefixCls,
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33 | className = props.className,
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34 | height = props.height,
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35 | itemHeight = props.itemHeight,
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36 | _props$fullHeight = props.fullHeight,
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37 | fullHeight = _props$fullHeight === void 0 ? true : _props$fullHeight,
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38 | style = props.style,
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39 | data = props.data,
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40 | children = props.children,
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41 | itemKey = props.itemKey,
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42 | virtual = props.virtual,
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43 | direction = props.direction,
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44 | scrollWidth = props.scrollWidth,
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45 | _props$component = props.component,
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46 | Component = _props$component === void 0 ? 'div' : _props$component,
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47 | onScroll = props.onScroll,
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48 | onVirtualScroll = props.onVirtualScroll,
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49 | onVisibleChange = props.onVisibleChange,
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50 | innerProps = props.innerProps,
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51 | extraRender = props.extraRender,
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52 | restProps = _objectWithoutProperties(props, _excluded);
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53 |
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54 | var useVirtual = !!(virtual !== false && height && itemHeight);
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55 | var inVirtual = useVirtual && data && itemHeight * data.length > height;
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56 | var isRTL = direction === 'rtl';
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57 | var mergedClassName = classNames(prefixCls, _defineProperty({}, "".concat(prefixCls, "-rtl"), isRTL), className);
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58 | var mergedData = data || EMPTY_DATA;
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59 | var componentRef = useRef();
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60 | var fillerInnerRef = useRef();
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61 |
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62 | var _useState = useState(0),
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63 | _useState2 = _slicedToArray(_useState, 2),
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64 | offsetTop = _useState2[0],
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65 | setOffsetTop = _useState2[1];
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66 | var _useState3 = useState(0),
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67 | _useState4 = _slicedToArray(_useState3, 2),
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68 | offsetLeft = _useState4[0],
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69 | setOffsetLeft = _useState4[1];
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70 | var _useState5 = useState(false),
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71 | _useState6 = _slicedToArray(_useState5, 2),
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72 | scrollMoving = _useState6[0],
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73 | setScrollMoving = _useState6[1];
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74 | var onScrollbarStartMove = function onScrollbarStartMove() {
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75 | setScrollMoving(true);
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76 | };
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77 | var onScrollbarStopMove = function onScrollbarStopMove() {
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78 | setScrollMoving(false);
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79 | };
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80 |
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81 | var getKey = React.useCallback(function (item) {
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82 | if (typeof itemKey === 'function') {
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83 | return itemKey(item);
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84 | }
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85 | return item === null || item === void 0 ? void 0 : item[itemKey];
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86 | }, [itemKey]);
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87 | var sharedConfig = {
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88 | getKey: getKey
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89 | };
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90 |
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91 | function syncScrollTop(newTop) {
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92 | setOffsetTop(function (origin) {
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93 | var value;
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94 | if (typeof newTop === 'function') {
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95 | value = newTop(origin);
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96 | } else {
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97 | value = newTop;
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98 | }
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99 | var alignedTop = keepInRange(value);
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100 | componentRef.current.scrollTop = alignedTop;
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101 | return alignedTop;
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102 | });
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103 | }
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104 |
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105 |
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106 | var rangeRef = useRef({
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107 | start: 0,
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108 | end: mergedData.length
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109 | });
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110 | var diffItemRef = useRef();
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111 | var _useDiffItem = useDiffItem(mergedData, getKey),
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112 | _useDiffItem2 = _slicedToArray(_useDiffItem, 1),
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113 | diffItem = _useDiffItem2[0];
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114 | diffItemRef.current = diffItem;
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115 |
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116 | var _useHeights = useHeights(getKey, null, null),
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117 | _useHeights2 = _slicedToArray(_useHeights, 4),
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118 | setInstanceRef = _useHeights2[0],
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119 | collectHeight = _useHeights2[1],
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120 | heights = _useHeights2[2],
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121 | heightUpdatedMark = _useHeights2[3];
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122 |
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123 | var _React$useMemo = React.useMemo(function () {
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124 | if (!useVirtual) {
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125 | return {
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126 | scrollHeight: undefined,
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127 | start: 0,
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128 | end: mergedData.length - 1,
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129 | offset: undefined
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130 | };
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131 | }
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132 |
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133 | if (!inVirtual) {
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134 | var _fillerInnerRef$curre;
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135 | return {
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136 | scrollHeight: ((_fillerInnerRef$curre = fillerInnerRef.current) === null || _fillerInnerRef$curre === void 0 ? void 0 : _fillerInnerRef$curre.offsetHeight) || 0,
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137 | start: 0,
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138 | end: mergedData.length - 1,
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139 | offset: undefined
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140 | };
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141 | }
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142 | var itemTop = 0;
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143 | var startIndex;
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144 | var startOffset;
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145 | var endIndex;
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146 | var dataLen = mergedData.length;
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147 | for (var i = 0; i < dataLen; i += 1) {
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148 | var item = mergedData[i];
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149 | var key = getKey(item);
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150 | var cacheHeight = heights.get(key);
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151 | var currentItemBottom = itemTop + (cacheHeight === undefined ? itemHeight : cacheHeight);
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152 |
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153 | if (currentItemBottom >= offsetTop && startIndex === undefined) {
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154 | startIndex = i;
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155 | startOffset = itemTop;
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156 | }
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157 |
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158 | if (currentItemBottom > offsetTop + height && endIndex === undefined) {
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159 | endIndex = i;
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160 | }
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161 | itemTop = currentItemBottom;
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162 | }
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163 |
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164 | if (startIndex === undefined) {
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165 | startIndex = 0;
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166 | startOffset = 0;
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167 | endIndex = Math.ceil(height / itemHeight);
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168 | }
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169 | if (endIndex === undefined) {
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170 | endIndex = mergedData.length - 1;
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171 | }
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172 |
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173 | endIndex = Math.min(endIndex + 1, mergedData.length);
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174 | return {
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175 | scrollHeight: itemTop,
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176 | start: startIndex,
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177 | end: endIndex,
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178 | offset: startOffset
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179 | };
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180 | }, [inVirtual, useVirtual, offsetTop, mergedData, heightUpdatedMark, height]),
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181 | scrollHeight = _React$useMemo.scrollHeight,
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182 | start = _React$useMemo.start,
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183 | end = _React$useMemo.end,
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184 | fillerOffset = _React$useMemo.offset;
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185 | rangeRef.current.start = start;
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186 | rangeRef.current.end = end;
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187 |
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188 | var _React$useState = React.useState({
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189 | width: 0,
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190 | height: height
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191 | }),
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192 | _React$useState2 = _slicedToArray(_React$useState, 2),
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193 | size = _React$useState2[0],
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194 | setSize = _React$useState2[1];
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195 | var onHolderResize = function onHolderResize(sizeInfo) {
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196 | setSize(sizeInfo);
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197 | };
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198 |
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199 | var verticalScrollBarRef = useRef();
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200 | var horizontalScrollBarRef = useRef();
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201 | var horizontalScrollBarSpinSize = React.useMemo(function () {
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202 | return getSpinSize(size.width, scrollWidth);
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203 | }, [size.width, scrollWidth]);
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204 | var verticalScrollBarSpinSize = React.useMemo(function () {
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205 | return getSpinSize(size.height, scrollHeight);
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206 | }, [size.height, scrollHeight]);
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207 |
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208 | var maxScrollHeight = scrollHeight - height;
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209 | var maxScrollHeightRef = useRef(maxScrollHeight);
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210 | maxScrollHeightRef.current = maxScrollHeight;
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211 | function keepInRange(newScrollTop) {
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212 | var newTop = newScrollTop;
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213 | if (!Number.isNaN(maxScrollHeightRef.current)) {
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214 | newTop = Math.min(newTop, maxScrollHeightRef.current);
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215 | }
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216 | newTop = Math.max(newTop, 0);
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217 | return newTop;
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218 | }
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219 | var isScrollAtTop = offsetTop <= 0;
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220 | var isScrollAtBottom = offsetTop >= maxScrollHeight;
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221 | var originScroll = useOriginScroll(isScrollAtTop, isScrollAtBottom);
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222 |
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223 | var getVirtualScrollInfo = function getVirtualScrollInfo() {
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224 | return {
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225 | x: isRTL ? -offsetLeft : offsetLeft,
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226 | y: offsetTop
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227 | };
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228 | };
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229 | var lastVirtualScrollInfoRef = useRef(getVirtualScrollInfo());
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230 | var triggerScroll = useEvent(function () {
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231 | if (onVirtualScroll) {
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232 | var nextInfo = getVirtualScrollInfo();
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233 |
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234 | if (lastVirtualScrollInfoRef.current.x !== nextInfo.x || lastVirtualScrollInfoRef.current.y !== nextInfo.y) {
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235 | onVirtualScroll(nextInfo);
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236 | lastVirtualScrollInfoRef.current = nextInfo;
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237 | }
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238 | }
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239 | });
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240 | function onScrollBar(newScrollOffset, horizontal) {
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241 | var newOffset = newScrollOffset;
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242 | if (horizontal) {
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243 | flushSync(function () {
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244 | setOffsetLeft(newOffset);
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245 | });
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246 | triggerScroll();
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247 | } else {
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248 | syncScrollTop(newOffset);
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249 | }
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250 | }
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251 |
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252 | function onFallbackScroll(e) {
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253 | var newScrollTop = e.currentTarget.scrollTop;
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254 | if (newScrollTop !== offsetTop) {
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255 | syncScrollTop(newScrollTop);
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256 | }
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257 |
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258 | onScroll === null || onScroll === void 0 ? void 0 : onScroll(e);
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259 | triggerScroll();
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260 | }
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261 | var keepInHorizontalRange = function keepInHorizontalRange(nextOffsetLeft) {
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262 | var tmpOffsetLeft = nextOffsetLeft;
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263 | var max = scrollWidth - size.width;
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264 | tmpOffsetLeft = Math.max(tmpOffsetLeft, 0);
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265 | tmpOffsetLeft = Math.min(tmpOffsetLeft, max);
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266 | return tmpOffsetLeft;
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267 | };
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268 | var onWheelDelta = useEvent(function (offsetXY, fromHorizontal) {
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269 | if (fromHorizontal) {
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270 |
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271 | flushSync(function () {
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272 | setOffsetLeft(function (left) {
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273 | var nextOffsetLeft = left + (isRTL ? -offsetXY : offsetXY);
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274 | return keepInHorizontalRange(nextOffsetLeft);
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275 | });
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276 | });
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277 | triggerScroll();
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278 | } else {
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279 | syncScrollTop(function (top) {
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280 | var newTop = top + offsetXY;
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281 | return newTop;
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282 | });
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283 | }
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284 | });
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285 |
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286 | var _useFrameWheel = useFrameWheel(useVirtual, isScrollAtTop, isScrollAtBottom, !!scrollWidth, onWheelDelta),
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287 | _useFrameWheel2 = _slicedToArray(_useFrameWheel, 2),
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288 | onRawWheel = _useFrameWheel2[0],
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289 | onFireFoxScroll = _useFrameWheel2[1];
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290 |
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291 | useMobileTouchMove(useVirtual, componentRef, function (deltaY, smoothOffset) {
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292 | if (originScroll(deltaY, smoothOffset)) {
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293 | return false;
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294 | }
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295 | onRawWheel({
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296 | preventDefault: function preventDefault() {},
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297 | deltaY: deltaY
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298 | });
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299 | return true;
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300 | });
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301 | useLayoutEffect(function () {
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302 |
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303 | function onMozMousePixelScroll(e) {
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304 | if (useVirtual) {
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305 | e.preventDefault();
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306 | }
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307 | }
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308 | var componentEle = componentRef.current;
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309 | componentEle.addEventListener('wheel', onRawWheel);
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310 | componentEle.addEventListener('DOMMouseScroll', onFireFoxScroll);
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311 | componentEle.addEventListener('MozMousePixelScroll', onMozMousePixelScroll);
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312 | return function () {
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313 | componentEle.removeEventListener('wheel', onRawWheel);
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314 | componentEle.removeEventListener('DOMMouseScroll', onFireFoxScroll);
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315 | componentEle.removeEventListener('MozMousePixelScroll', onMozMousePixelScroll);
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316 | };
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317 | }, [useVirtual]);
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318 |
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319 | var delayHideScrollBar = function delayHideScrollBar() {
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320 | var _verticalScrollBarRef, _horizontalScrollBarR;
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321 | (_verticalScrollBarRef = verticalScrollBarRef.current) === null || _verticalScrollBarRef === void 0 ? void 0 : _verticalScrollBarRef.delayHidden();
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322 | (_horizontalScrollBarR = horizontalScrollBarRef.current) === null || _horizontalScrollBarR === void 0 ? void 0 : _horizontalScrollBarR.delayHidden();
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323 | };
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324 | var _scrollTo = useScrollTo(componentRef, mergedData, heights, itemHeight, getKey, collectHeight, syncScrollTop, delayHideScrollBar);
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325 | React.useImperativeHandle(ref, function () {
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326 | return {
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327 | getScrollInfo: getVirtualScrollInfo,
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328 | scrollTo: function scrollTo(config) {
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329 | function isPosScroll(arg) {
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330 | return arg && _typeof(arg) === 'object' && ('left' in arg || 'top' in arg);
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331 | }
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332 | if (isPosScroll(config)) {
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333 |
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334 | if (config.left !== undefined) {
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335 | setOffsetLeft(keepInHorizontalRange(config.left));
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336 | }
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337 |
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338 | _scrollTo(config.top);
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339 | } else {
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340 | _scrollTo(config);
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341 | }
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342 | }
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343 | };
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344 | });
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345 |
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346 |
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347 | useLayoutEffect(function () {
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348 | if (onVisibleChange) {
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349 | var renderList = mergedData.slice(start, end + 1);
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350 | onVisibleChange(renderList, mergedData);
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351 | }
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352 | }, [start, end, mergedData]);
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353 |
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354 | var getSize = function getSize(startKey) {
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355 | var endKey = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : startKey;
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356 | var top = 0;
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357 | var bottom = 0;
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358 | var total = 0;
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359 | var dataLen = mergedData.length;
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360 | for (var i = 0; i < dataLen; i += 1) {
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361 | var _heights$get;
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362 | var item = mergedData[i];
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363 | var key = getKey(item);
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364 | var cacheHeight = (_heights$get = heights.get(key)) !== null && _heights$get !== void 0 ? _heights$get : itemHeight;
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365 | bottom = total + cacheHeight;
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366 | if (key === startKey) {
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367 | top = total;
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368 | }
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369 | if (key === endKey) {
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370 | break;
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371 | }
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372 | total = bottom;
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373 | }
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374 | return {
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375 | top: top,
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376 | bottom: bottom
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377 | };
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378 | };
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379 | var extraContent = extraRender === null || extraRender === void 0 ? void 0 : extraRender({
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380 | start: start,
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381 | end: end,
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382 | virtual: inVirtual,
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383 | offsetX: offsetLeft,
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384 | offsetY: fillerOffset,
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385 | rtl: isRTL,
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386 | getSize: getSize
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387 | });
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388 |
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389 | var listChildren = useChildren(mergedData, start, end, scrollWidth, setInstanceRef, children, sharedConfig);
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390 | var componentStyle = null;
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391 | if (height) {
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392 | componentStyle = _objectSpread(_defineProperty({}, fullHeight ? 'height' : 'maxHeight', height), ScrollStyle);
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393 | if (useVirtual) {
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394 | componentStyle.overflowY = 'hidden';
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395 | if (scrollWidth) {
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396 | componentStyle.overflowX = 'hidden';
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397 | }
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398 | if (scrollMoving) {
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399 | componentStyle.pointerEvents = 'none';
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400 | }
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401 | }
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402 | }
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403 | var containerProps = {};
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404 | if (isRTL) {
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405 | containerProps.dir = 'rtl';
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406 | }
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407 | return React.createElement("div", _extends({
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408 | style: _objectSpread(_objectSpread({}, style), {}, {
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409 | position: 'relative'
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410 | }),
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411 | className: mergedClassName
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412 | }, containerProps, restProps), React.createElement(ResizeObserver, {
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413 | onResize: onHolderResize
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414 | }, React.createElement(Component, {
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415 | className: "".concat(prefixCls, "-holder"),
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416 | style: componentStyle,
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417 | ref: componentRef,
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418 | onScroll: onFallbackScroll,
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419 | onMouseEnter: delayHideScrollBar
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420 | }, React.createElement(Filler, {
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421 | prefixCls: prefixCls,
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422 | height: scrollHeight,
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423 | offsetX: offsetLeft,
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424 | offsetY: fillerOffset,
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425 | scrollWidth: scrollWidth,
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426 | onInnerResize: collectHeight,
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427 | ref: fillerInnerRef,
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428 | innerProps: innerProps,
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429 | rtl: isRTL,
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430 | extra: extraContent
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431 | }, listChildren))), inVirtual && scrollHeight > height && React.createElement(ScrollBar, {
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432 | ref: verticalScrollBarRef,
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433 | prefixCls: prefixCls,
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434 | scrollOffset: offsetTop,
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435 | scrollRange: scrollHeight,
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436 | rtl: isRTL,
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437 | onScroll: onScrollBar,
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438 | onStartMove: onScrollbarStartMove,
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439 | onStopMove: onScrollbarStopMove,
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440 | spinSize: verticalScrollBarSpinSize,
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441 | containerSize: size.height
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442 | }), inVirtual && scrollWidth && React.createElement(ScrollBar, {
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443 | ref: horizontalScrollBarRef,
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444 | prefixCls: prefixCls,
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445 | scrollOffset: offsetLeft,
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446 | scrollRange: scrollWidth,
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447 | rtl: isRTL,
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448 | onScroll: onScrollBar,
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449 | onStartMove: onScrollbarStartMove,
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450 | onStopMove: onScrollbarStopMove,
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451 | spinSize: horizontalScrollBarSpinSize,
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452 | containerSize: size.width,
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453 | horizontal: true
|
454 | }));
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455 | }
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456 | var List = React.forwardRef(RawList);
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457 | List.displayName = 'List';
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458 | export default List; |
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