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antd-virtual-table

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import React, { createContext, useState, useRef, useEffect, useMemo, useContext } from 'react'; /*! ***************************************************************************** Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT. See the Apache Version 2.0 License for specific language governing permissions and limitations under the License. ***************************************************************************** */ var __assign = function() { __assign = Object.assign || function __assign(t) { for (var s, i = 1, n = arguments.length; i < n; i++) { s = arguments[i]; for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p]; } return t; }; return __assign.apply(this, arguments); }; function __rest(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; } /** Detect free variable `global` from Node.js. */ var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; var freeGlobal$1 = freeGlobal; /** Detect free variable `self`. */ var freeSelf = typeof self == 'object' && self && self.Object === Object && self; /** Used as a reference to the global object. */ var root = freeGlobal$1 || freeSelf || Function('return this')(); var root$1 = root; /** Built-in value references. */ var Symbol = root$1.Symbol; var Symbol$1 = Symbol; /** Used for built-in method references. */ var objectProto$1 = Object.prototype; /** Used to check objects for own properties. */ var hasOwnProperty = objectProto$1.hasOwnProperty; /** * Used to resolve the * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) * of values. */ var nativeObjectToString$1 = objectProto$1.toString; /** Built-in value references. */ var symToStringTag$1 = Symbol$1 ? Symbol$1.toStringTag : undefined; /** * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. * * @private * @param {*} value The value to query. * @returns {string} Returns the raw `toStringTag`. */ function getRawTag(value) { var isOwn = hasOwnProperty.call(value, symToStringTag$1), tag = value[symToStringTag$1]; try { value[symToStringTag$1] = undefined; var unmasked = true; } catch (e) {} var result = nativeObjectToString$1.call(value); if (unmasked) { if (isOwn) { value[symToStringTag$1] = tag; } else { delete value[symToStringTag$1]; } } return result; } /** Used for built-in method references. */ var objectProto = Object.prototype; /** * Used to resolve the * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) * of values. */ var nativeObjectToString = objectProto.toString; /** * Converts `value` to a string using `Object.prototype.toString`. * * @private * @param {*} value The value to convert. * @returns {string} Returns the converted string. */ function objectToString(value) { return nativeObjectToString.call(value); } /** `Object#toString` result references. */ var nullTag = '[object Null]', undefinedTag = '[object Undefined]'; /** Built-in value references. */ var symToStringTag = Symbol$1 ? Symbol$1.toStringTag : undefined; /** * The base implementation of `getTag` without fallbacks for buggy environments. * * @private * @param {*} value The value to query. * @returns {string} Returns the `toStringTag`. */ function baseGetTag(value) { if (value == null) { return value === undefined ? undefinedTag : nullTag; } return (symToStringTag && symToStringTag in Object(value)) ? getRawTag(value) : objectToString(value); } /** * Checks if `value` is object-like. A value is object-like if it's not `null` * and has a `typeof` result of "object". * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is object-like, else `false`. * @example * * _.isObjectLike({}); * // => true * * _.isObjectLike([1, 2, 3]); * // => true * * _.isObjectLike(_.noop); * // => false * * _.isObjectLike(null); * // => false */ function isObjectLike(value) { return value != null && typeof value == 'object'; } /** `Object#toString` result references. */ var symbolTag = '[object Symbol]'; /** * Checks if `value` is classified as a `Symbol` primitive or object. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. * @example * * _.isSymbol(Symbol.iterator); * // => true * * _.isSymbol('abc'); * // => false */ function isSymbol(value) { return typeof value == 'symbol' || (isObjectLike(value) && baseGetTag(value) == symbolTag); } /** Used to match a single whitespace character. */ var reWhitespace = /\s/; /** * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace * character of `string`. * * @private * @param {string} string The string to inspect. * @returns {number} Returns the index of the last non-whitespace character. */ function trimmedEndIndex(string) { var index = string.length; while (index-- && reWhitespace.test(string.charAt(index))) {} return index; } /** Used to match leading whitespace. */ var reTrimStart = /^\s+/; /** * The base implementation of `_.trim`. * * @private * @param {string} string The string to trim. * @returns {string} Returns the trimmed string. */ function baseTrim(string) { return string ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '') : string; } /** * Checks if `value` is the * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an object, else `false`. * @example * * _.isObject({}); * // => true * * _.isObject([1, 2, 3]); * // => true * * _.isObject(_.noop); * // => true * * _.isObject(null); * // => false */ function isObject(value) { var type = typeof value; return value != null && (type == 'object' || type == 'function'); } /** Used as references for various `Number` constants. */ var NAN = 0 / 0; /** Used to detect bad signed hexadecimal string values. */ var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; /** Used to detect binary string values. */ var reIsBinary = /^0b[01]+$/i; /** Used to detect octal string values. */ var reIsOctal = /^0o[0-7]+$/i; /** Built-in method references without a dependency on `root`. */ var freeParseInt = parseInt; /** * Converts `value` to a number. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to process. * @returns {number} Returns the number. * @example * * _.toNumber(3.2); * // => 3.2 * * _.toNumber(Number.MIN_VALUE); * // => 5e-324 * * _.toNumber(Infinity); * // => Infinity * * _.toNumber('3.2'); * // => 3.2 */ function toNumber(value) { if (typeof value == 'number') { return value; } if (isSymbol(value)) { return NAN; } if (isObject(value)) { var other = typeof value.valueOf == 'function' ? value.valueOf() : value; value = isObject(other) ? (other + '') : other; } if (typeof value != 'string') { return value === 0 ? value : +value; } value = baseTrim(value); var isBinary = reIsBinary.test(value); return (isBinary || reIsOctal.test(value)) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : (reIsBadHex.test(value) ? NAN : +value); } /** * Gets the timestamp of the number of milliseconds that have elapsed since * the Unix epoch (1 January 1970 00:00:00 UTC). * * @static * @memberOf _ * @since 2.4.0 * @category Date * @returns {number} Returns the timestamp. * @example * * _.defer(function(stamp) { * console.log(_.now() - stamp); * }, _.now()); * // => Logs the number of milliseconds it took for the deferred invocation. */ var now = function() { return root$1.Date.now(); }; var now$1 = now; /** Error message constants. */ var FUNC_ERROR_TEXT$1 = 'Expected a function'; /* Built-in method references for those with the same name as other `lodash` methods. */ var nativeMax = Math.max, nativeMin = Math.min; /** * Creates a debounced function that delays invoking `func` until after `wait` * milliseconds have elapsed since the last time the debounced function was * invoked. The debounced function comes with a `cancel` method to cancel * delayed `func` invocations and a `flush` method to immediately invoke them. * Provide `options` to indicate whether `func` should be invoked on the * leading and/or trailing edge of the `wait` timeout. The `func` is invoked * with the last arguments provided to the debounced function. Subsequent * calls to the debounced function return the result of the last `func` * invocation. * * **Note:** If `leading` and `trailing` options are `true`, `func` is * invoked on the trailing edge of the timeout only if the debounced function * is invoked more than once during the `wait` timeout. * * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred * until to the next tick, similar to `setTimeout` with a timeout of `0`. * * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) * for details over the differences between `_.debounce` and `_.throttle`. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to debounce. * @param {number} [wait=0] The number of milliseconds to delay. * @param {Object} [options={}] The options object. * @param {boolean} [options.leading=false] * Specify invoking on the leading edge of the timeout. * @param {number} [options.maxWait] * The maximum time `func` is allowed to be delayed before it's invoked. * @param {boolean} [options.trailing=true] * Specify invoking on the trailing edge of the timeout. * @returns {Function} Returns the new debounced function. * @example * * // Avoid costly calculations while the window size is in flux. * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); * * // Invoke `sendMail` when clicked, debouncing subsequent calls. * jQuery(element).on('click', _.debounce(sendMail, 300, { * 'leading': true, * 'trailing': false * })); * * // Ensure `batchLog` is invoked once after 1 second of debounced calls. * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); * var source = new EventSource('/stream'); * jQuery(source).on('message', debounced); * * // Cancel the trailing debounced invocation. * jQuery(window).on('popstate', debounced.cancel); */ function debounce(func, wait, options) { var lastArgs, lastThis, maxWait, result, timerId, lastCallTime, lastInvokeTime = 0, leading = false, maxing = false, trailing = true; if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT$1); } wait = toNumber(wait) || 0; if (isObject(options)) { leading = !!options.leading; maxing = 'maxWait' in options; maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; trailing = 'trailing' in options ? !!options.trailing : trailing; } function invokeFunc(time) { var args = lastArgs, thisArg = lastThis; lastArgs = lastThis = undefined; lastInvokeTime = time; result = func.apply(thisArg, args); return result; } function leadingEdge(time) { // Reset any `maxWait` timer. lastInvokeTime = time; // Start the timer for the trailing edge. timerId = setTimeout(timerExpired, wait); // Invoke the leading edge. return leading ? invokeFunc(time) : result; } function remainingWait(time) { var timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime, timeWaiting = wait - timeSinceLastCall; return maxing ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) : timeWaiting; } function shouldInvoke(time) { var timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime; // Either this is the first call, activity has stopped and we're at the // trailing edge, the system time has gone backwards and we're treating // it as the trailing edge, or we've hit the `maxWait` limit. return (lastCallTime === undefined || (timeSinceLastCall >= wait) || (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); } function timerExpired() { var time = now$1(); if (shouldInvoke(time)) { return trailingEdge(time); } // Restart the timer. timerId = setTimeout(timerExpired, remainingWait(time)); } function trailingEdge(time) { timerId = undefined; // Only invoke if we have `lastArgs` which means `func` has been // debounced at least once. if (trailing && lastArgs) { return invokeFunc(time); } lastArgs = lastThis = undefined; return result; } function cancel() { if (timerId !== undefined) { clearTimeout(timerId); } lastInvokeTime = 0; lastArgs = lastCallTime = lastThis = timerId = undefined; } function flush() { return timerId === undefined ? result : trailingEdge(now$1()); } function debounced() { var time = now$1(), isInvoking = shouldInvoke(time); lastArgs = arguments; lastThis = this; lastCallTime = time; if (isInvoking) { if (timerId === undefined) { return leadingEdge(lastCallTime); } if (maxing) { // Handle invocations in a tight loop. clearTimeout(timerId); timerId = setTimeout(timerExpired, wait); return invokeFunc(lastCallTime); } } if (timerId === undefined) { timerId = setTimeout(timerExpired, wait); } return result; } debounced.cancel = cancel; debounced.flush = flush; return debounced; } /** Error message constants. */ var FUNC_ERROR_TEXT = 'Expected a function'; /** * Creates a throttled function that only invokes `func` at most once per * every `wait` milliseconds. The throttled function comes with a `cancel` * method to cancel delayed `func` invocations and a `flush` method to * immediately invoke them. Provide `options` to indicate whether `func` * should be invoked on the leading and/or trailing edge of the `wait` * timeout. The `func` is invoked with the last arguments provided to the * throttled function. Subsequent calls to the throttled function return the * result of the last `func` invocation. * * **Note:** If `leading` and `trailing` options are `true`, `func` is * invoked on the trailing edge of the timeout only if the throttled function * is invoked more than once during the `wait` timeout. * * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred * until to the next tick, similar to `setTimeout` with a timeout of `0`. * * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) * for details over the differences between `_.throttle` and `_.debounce`. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to throttle. * @param {number} [wait=0] The number of milliseconds to throttle invocations to. * @param {Object} [options={}] The options object. * @param {boolean} [options.leading=true] * Specify invoking on the leading edge of the timeout. * @param {boolean} [options.trailing=true] * Specify invoking on the trailing edge of the timeout. * @returns {Function} Returns the new throttled function. * @example * * // Avoid excessively updating the position while scrolling. * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); * * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); * jQuery(element).on('click', throttled); * * // Cancel the trailing throttled invocation. * jQuery(window).on('popstate', throttled.cancel); */ function throttle(func, wait, options) { var leading = true, trailing = true; if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } if (isObject(options)) { leading = 'leading' in options ? !!options.leading : leading; trailing = 'trailing' in options ? !!options.trailing : trailing; } return debounce(func, wait, { 'leading': leading, 'maxWait': wait, 'trailing': trailing }); } function styleInject(css, ref) { if ( ref === void 0 ) ref = {}; var insertAt = ref.insertAt; if (!css || typeof document === 'undefined') { return; } var head = document.head || document.getElementsByTagName('head')[0]; var style = document.createElement('style'); style.type = 'text/css'; if (insertAt === 'top') { if (head.firstChild) { head.insertBefore(style, head.firstChild); } else { head.appendChild(style); } } else { head.appendChild(style); } if (style.styleSheet) { style.styleSheet.cssText = css; } else { style.appendChild(document.createTextNode(css)); } } var css_248z = ".virtuallist .ant-table-tbody>tr>td>div{-webkit-box-sizing:border-box;box-sizing:border-box;white-space:nowrap;vertical-align:middle;overflow:hidden;text-overflow:ellipsis;width:100%}.virtuallist .ant-table-tbody>tr>td.ant-table-row-expand-icon-cell>div{overflow:inherit}.ant-table-bordered .virtuallist>table>.ant-table-tbody>tr>td{border-right:1px solid #f0f0f0}"; styleInject(css_248z); var ScrollContext = createContext({ renderLen: 1, start: 0, }); function VTable(props, otherParams) { var style = props.style, children = props.children, rest = __rest(props, ["style", "children"]); var width = style.width, rest_style = __rest(style, ["width"]); var rowKeyList = (otherParams !== null && otherParams !== void 0 ? otherParams : {}).rowKeyList; // 默认行高 var rowHeight = 50; var originData = {}; //行索引与行高组成map对象 var _a = useState(originData), rowHeightMap = _a[0], setRowHeightMap = _a[1]; for (var _i = 0, rowKeyList_1 = rowKeyList; _i < rowKeyList_1.length; _i++) { var index = rowKeyList_1[_i]; originData[index] = rowHeight; } //记录行高累加高度 var rowHeightSum = []; var currowHeightSum = 0; for (var _b = 0, rowKeyList_2 = rowKeyList; _b < rowKeyList_2.length; _b++) { var index = rowKeyList_2[_b]; currowHeightSum += rowHeightMap[index]; rowHeightSum.push(currowHeightSum); } // 渲染的第一条数据的索引 var start = 0; //二分查找:第一个累加高度大于scrollTop的数据索引 var binarySearch = function (array, value) { var left = 0; var right = array.length - 1; while (left <= right) { var middle = left + Math.floor((right - left) / 2); if (array[middle] >= value) right = middle - 1; else left = middle + 1; } return left; }; //当前ScrollTop值 var _c = useState(0), curScrollTop = _c[0], setCurScrollTop = _c[1]; start = binarySearch(rowHeightSum, curScrollTop); //初始渲染条数 var _d = useState(0), renderLen = _d[0], setDefaultRenderLen = _d[1]; var wrap_tableRef = useRef(null); var tableRef = useRef(null); //计算当前屏幕能展示数据条数 useEffect(function () { var _a, _b; var parentHeight = (_b = (_a = wrap_tableRef.current) === null || _a === void 0 ? void 0 : _a.parentNode) === null || _b === void 0 ? void 0 : _b.offsetHeight; setDefaultRenderLen(Math.ceil(parentHeight / rowHeight)); }, [rowHeight]); // 偏移量,向上滚动的动画效果 var offsetStart = rowHeightSum[start] ? rowHeightMap[start] - (rowHeightSum[start] - curScrollTop) : 0; var result = useMemo(function () { return rowKeyList.length - renderLen - start; }, [ renderLen, rowKeyList, start ]); //滚动到最底部时,偏移量重置为0 if (result <= 0) { offsetStart = 0; } // virtuallist总高度 var tableHeight = rowHeightSum[rowKeyList.length - 1] || rowHeight * rowKeyList.length; useEffect(function () { var _a, _b, _c, _d; var curRowHeightMap = {}; var n = 1; while (n <= renderLen) { var index = rowKeyList.indexOf((_b = (_a = tableRef.current) === null || _a === void 0 ? void 0 : _a.getElementsByTagName('tr')[n]) === null || _b === void 0 ? void 0 : _b.getAttribute('data-row-key')); if (index > -1) { //记录页面上存在的tr行高 curRowHeightMap[index] = (_d = (_c = tableRef.current) === null || _c === void 0 ? void 0 : _c.getElementsByTagName('tr')[n]) === null || _d === void 0 ? void 0 : _d.offsetHeight; } n += 1; } //更新记录行高的map对象 setRowHeightMap(function (prevState) { return Object.assign(prevState, curRowHeightMap); }); }, [renderLen, curScrollTop, rowKeyList]); useEffect(function () { var _a; var throttleScroll = throttle(function (e) { var _a, _b; var scrollTop = (_b = (_a = e === null || e === void 0 ? void 0 : e.target) === null || _a === void 0 ? void 0 : _a.scrollTop) !== null && _b !== void 0 ? _b : 0; setCurScrollTop(scrollTop); }, 16); var ref = (_a = wrap_tableRef === null || wrap_tableRef === void 0 ? void 0 : wrap_tableRef.current) === null || _a === void 0 ? void 0 : _a.parentNode; if (ref) { ref.addEventListener('scroll', throttleScroll, { //防止调用事件监听器:为了提高滚动性能 passive: true, }); } return function () { ref.removeEventListener('scroll', throttleScroll); }; }, [wrap_tableRef]); return (React.createElement("div", { className: "virtuallist", ref: wrap_tableRef, style: { width: '100%', position: 'relative', height: tableHeight, boxSizing: 'border-box' } }, React.createElement(ScrollContext.Provider, { value: { start: start, renderLen: renderLen, } }, React.createElement("table", __assign({}, rest, { ref: tableRef, style: __assign(__assign({}, rest_style), { width: width, position: 'sticky', top: 0, transform: "translateY(-" + offsetStart + "px)" }) }), children)))); } function VWrapper(props) { var children = props.children, restProps = __rest(props, ["children"]); var _a = useContext(ScrollContext), renderLen = _a.renderLen, start = _a.start; var contents = children[1]; var tempNode = useMemo(function () { if (Array.isArray(contents) && contents.length) { return [children[0], contents.slice(start, start + renderLen)]; } return children; }, [children, contents, renderLen, start]); return React.createElement("tbody", __assign({}, restProps), tempNode); } var transformTable = function (tempObj) { return function (props) { return VTable(props, tempObj); }; }; function VList(props) { var TableComponent = transformTable({ rowKeyList: props.rowKeyList, }); return { table: TableComponent, body: { wrapper: VWrapper, } }; } export { VList };