155 lines
6.5 KiB
JavaScript
155 lines
6.5 KiB
JavaScript
import _objectSpread from "@babel/runtime/helpers/esm/objectSpread2";
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import _regeneratorRuntime from "@babel/runtime/helpers/esm/regeneratorRuntime";
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import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
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import _asyncToGenerator from "@babel/runtime/helpers/esm/asyncToGenerator";
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import { ProProvider } from '@ant-design/pro-provider';
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import { useDebounceFn } from '@ant-design/pro-utils';
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import classNames from 'classnames';
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import React, { useContext, useEffect, useMemo, useRef } from 'react';
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import { AsyncContentPanel } from "./AsyncContentPanel";
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import { ProHelpProvide } from "./HelpProvide";
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import { RenderContentPanel } from "./RenderContentPanel";
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import { jsx as _jsx } from "react/jsx-runtime";
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/**
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* 控制具体的帮助文档显示组件
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* selectedKey 来展示对应的内容。它会根据不同的item.valueType值来展示不同的内容，包括标题、图片、超链接等。
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* @param ProHelpContentPanelProps
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* @returns
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*/
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export var ProHelpContentPanel = function ProHelpContentPanel(_ref) {
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var className = _ref.className,
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parentItem = _ref.parentItem,
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selectedKey = _ref.selectedKey,
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onScroll = _ref.onScroll;
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var _useContext = useContext(ProHelpProvide),
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dataSource = _useContext.dataSource;
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var _useContext2 = useContext(ProProvider),
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hashId = _useContext2.hashId;
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// 记录每个面板的滚动高度
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var scrollHeightMap = useRef(new Map());
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var divRef = useRef(null);
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useEffect(function () {
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if (!selectedKey || !(parentItem !== null && parentItem !== void 0 && parentItem.infiniteScrollFull)) return;
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var div = scrollHeightMap.current.get(selectedKey);
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if (div !== null && div !== void 0 && div.offsetTop && divRef.current) {
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if (Math.abs(divRef.current.scrollTop - (div === null || div === void 0 ? void 0 : div.offsetTop) + 40) > (div === null || div === void 0 ? void 0 : div.clientHeight)) {
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divRef.current.scrollTop = (div === null || div === void 0 ? void 0 : div.offsetTop) - 40;
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}
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}
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}, [selectedKey]);
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/**
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* debounce（防抖）处理滚动事件，并根据滚动位置来实现找到当前列表的 key
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*/
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var onScrollEvent = useDebounceFn( /*#__PURE__*/function () {
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var _ref2 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(e) {
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var dom, list;
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return _regeneratorRuntime().wrap(function _callee$(_context) {
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while (1) switch (_context.prev = _context.next) {
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case 0:
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dom = e === null || e === void 0 ? void 0 : e.target; // 根据滚动位置来找到当前列表的 key
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list = Array.from(scrollHeightMap.current.entries()).find(function (_ref3) {
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var _ref4 = _slicedToArray(_ref3, 2),
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value = _ref4[1];
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if ((dom === null || dom === void 0 ? void 0 : dom.scrollTop) < value.offsetTop) {
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return true;
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}
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return false;
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});
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if (list) {
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_context.next = 4;
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break;
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}
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return _context.abrupt("return");
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case 4:
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// 如果获取的 key 和当前 key 不同丢弃掉
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if (list.at(0) !== selectedKey) {
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// 如果不同，则触发 onScroll 事件
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onScroll === null || onScroll === void 0 || onScroll(list.at(0));
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}
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case 5:
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case "end":
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return _context.stop();
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}
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}, _callee);
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}));
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return function (_x) {
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return _ref2.apply(this, arguments);
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};
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}(), 200);
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/**
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* 当 parentItem 组件中的 infiniteScrollFull 属性变化时
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* 如果该属性为真值，则开始监听滚动事件；
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* 如果为假值，则停止监听滚动事件并取消防抖处理。
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* 在监听滚动事件时，可以实现分页（瀑布流）效果。同时，该代码还会根据 selectedKey 的变化来触发跳转
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*/
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useEffect(function () {
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var _divRef$current;
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if (!(parentItem !== null && parentItem !== void 0 && parentItem.infiniteScrollFull)) return;
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onScrollEvent.cancel();
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(_divRef$current = divRef.current) === null || _divRef$current === void 0 || _divRef$current.addEventListener('scroll', onScrollEvent.run, false);
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return function () {
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var _divRef$current2;
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onScrollEvent.cancel();
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(_divRef$current2 = divRef.current) === null || _divRef$current2 === void 0 || _divRef$current2.removeEventListener('scroll', onScrollEvent.run, false);
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};
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}, [parentItem === null || parentItem === void 0 ? void 0 : parentItem.infiniteScrollFull, selectedKey]);
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/**
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* 生成一个 Map 能根据 key 找到所有的 index
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*/
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var dataSourceMap = useMemo(function () {
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var map = new Map();
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dataSource.forEach(function (page) {
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page.children.forEach(function (item) {
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map.set(item.key || item.title, _objectSpread(_objectSpread({}, item), {}, {
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parentKey: page.key
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}));
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});
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});
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return map;
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}, [dataSource]);
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var renderItem = function renderItem(item) {
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if (item !== null && item !== void 0 && item.asyncLoad) {
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return /*#__PURE__*/_jsx("div", {
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className: classNames(className, hashId),
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id: item.title,
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children: /*#__PURE__*/_jsx(AsyncContentPanel, {
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item: item,
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onInit: function onInit(ref) {
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if (!scrollHeightMap.current) return;
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scrollHeightMap.current.set(item.key, ref);
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}
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}, item === null || item === void 0 ? void 0 : item.key)
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});
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}
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return /*#__PURE__*/_jsx("div", {
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className: classNames(className, hashId),
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id: item.title,
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children: /*#__PURE__*/_jsx(RenderContentPanel, {
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onInit: function onInit(ref) {
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if (!scrollHeightMap.current) return;
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scrollHeightMap.current.set(item.key, ref);
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},
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dataSourceChildren: (item === null || item === void 0 ? void 0 : item.children) || []
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})
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});
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};
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if (parentItem && parentItem.infiniteScrollFull) {
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var _parentItem$children;
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return /*#__PURE__*/_jsx("div", {
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ref: divRef,
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className: classNames("".concat(className, "-infinite-scroll"), hashId),
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style: {
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overflow: 'auto'
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},
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children: (_parentItem$children = parentItem.children) === null || _parentItem$children === void 0 ? void 0 : _parentItem$children.map(function (item) {
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return /*#__PURE__*/_jsx(React.Fragment, {
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children: renderItem(item)
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}, item.key);
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})
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});
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}
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return renderItem(dataSourceMap.get(selectedKey));
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}; |