@lobehub/ui/es/Markdown/Markdown.js

Lobe UI is an open-source UI component library for building AIGC web apps

'use client';

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
var _excluded = ["ref", "children", "className", "style", "fullFeaturedCodeBlock", "onDoubleClick", "enableLatex", "enableMermaid", "enableImageGallery", "enableCustomFootnotes", "componentProps", "allowHtml", "fontSize", "headerMultiple", "marginMultiple", "showFootnotes", "variant", "reactMarkdownProps", "lineHeight", "rehypePlugins", "remarkPlugins", "remarkPluginsAhead", "components", "customRender", "citations"];
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
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; }
import { cva } from 'class-variance-authority';
import { memo, useCallback, useMemo } from 'react';
import ReactMarkdown from 'react-markdown';
import { PreviewGroup } from "../Image";
import Image from "../mdx/mdxComponents/Image";
import Link from "../mdx/mdxComponents/Link";
import Section from "../mdx/mdxComponents/Section";
import Video from "../mdx/mdxComponents/Video";
import { CodeFullFeatured, CodeLite } from "./CodeBlock";
import Typography from "./Typography";
import { useStyles } from "./style";
import { addToCache, contentCache, createPlugins, escapeBrackets, escapeMhchem, fixMarkdownBold, transformCitations } from "./utils";
import { jsx as _jsx } from "react/jsx-runtime";
var Markdown = /*#__PURE__*/memo(function (_ref) {
  var ref = _ref.ref,
    children = _ref.children,
    className = _ref.className,
    style = _ref.style,
    fullFeaturedCodeBlock = _ref.fullFeaturedCodeBlock,
    onDoubleClick = _ref.onDoubleClick,
    _ref$enableLatex = _ref.enableLatex,
    enableLatex = _ref$enableLatex === void 0 ? true : _ref$enableLatex,
    _ref$enableMermaid = _ref.enableMermaid,
    enableMermaid = _ref$enableMermaid === void 0 ? true : _ref$enableMermaid,
    _ref$enableImageGalle = _ref.enableImageGallery,
    enableImageGallery = _ref$enableImageGalle === void 0 ? true : _ref$enableImageGalle,
    enableCustomFootnotes = _ref.enableCustomFootnotes,
    componentProps = _ref.componentProps,
    allowHtml = _ref.allowHtml,
    _ref$fontSize = _ref.fontSize,
    fontSize = _ref$fontSize === void 0 ? 14 : _ref$fontSize,
    _ref$headerMultiple = _ref.headerMultiple,
    headerMultiple = _ref$headerMultiple === void 0 ? 0.25 : _ref$headerMultiple,
    _ref$marginMultiple = _ref.marginMultiple,
    marginMultiple = _ref$marginMultiple === void 0 ? 1 : _ref$marginMultiple,
    showFootnotes = _ref.showFootnotes,
    _ref$variant = _ref.variant,
    variant = _ref$variant === void 0 ? 'default' : _ref$variant,
    reactMarkdownProps = _ref.reactMarkdownProps,
    _ref$lineHeight = _ref.lineHeight,
    lineHeight = _ref$lineHeight === void 0 ? 1.6 : _ref$lineHeight,
    rehypePlugins = _ref.rehypePlugins,
    remarkPlugins = _ref.remarkPlugins,
    remarkPluginsAhead = _ref.remarkPluginsAhead,
    _ref$components = _ref.components,
    components = _ref$components === void 0 ? {} : _ref$components,
    customRender = _ref.customRender,
    citations = _ref.citations,
    rest = _objectWithoutProperties(_ref, _excluded);
  var _useStyles = useStyles(),
    cx = _useStyles.cx,
    styles = _useStyles.styles;
  var isChatMode = variant === 'chat';
  var variants = useMemo(function () {
    return cva(styles.root, {
      defaultVariants: {
        enableLatex: true,
        variant: 'default'
      },
      /* eslint-disable sort-keys-fix/sort-keys-fix */
      variants: {
        variant: {
          default: null,
          chat: styles.chat
        },
        enableLatex: {
          true: styles.latex,
          false: null
        }
      }
      /* eslint-enable sort-keys-fix/sort-keys-fix */
    });
  }, [styles]);

  // 计算缓存键
  var cacheKey = useMemo(function () {
    return "".concat(children, "-").concat(enableLatex, "-").concat(enableCustomFootnotes, "-").concat((citations === null || citations === void 0 ? void 0 : citations.length) || 0);
  }, [children, enableLatex, enableCustomFootnotes, citations === null || citations === void 0 ? void 0 : citations.length]);

  // 处理内容并利用缓存避免重复计算
  var escapedContent = useMemo(function () {
    // 尝试从缓存获取
    if (contentCache.has(cacheKey)) {
      return contentCache.get(cacheKey);
    }

    // 处理新内容
    var processedContent;
    if (enableLatex) {
      var baseContent = fixMarkdownBold(escapeMhchem(escapeBrackets(children)));
      processedContent = enableCustomFootnotes ? transformCitations(baseContent, citations === null || citations === void 0 ? void 0 : citations.length) : baseContent;
    } else {
      processedContent = fixMarkdownBold(children);
    }

    // 缓存处理结果
    addToCache(cacheKey, processedContent);
    return processedContent;
  }, [cacheKey, children, enableLatex, enableCustomFootnotes, citations === null || citations === void 0 ? void 0 : citations.length]);

  // 创建插件
  var _useMemo = useMemo(function () {
      return createPlugins({
        allowHtml: allowHtml,
        enableCustomFootnotes: enableCustomFootnotes,
        enableLatex: enableLatex,
        isChatMode: isChatMode,
        rehypePlugins: rehypePlugins,
        remarkPlugins: remarkPlugins,
        remarkPluginsAhead: remarkPluginsAhead
      });
    }, [allowHtml, enableLatex, enableCustomFootnotes, isChatMode, rehypePlugins, remarkPlugins, remarkPluginsAhead]),
    rehypePluginsList = _useMemo.rehypePluginsList,
    remarkPluginsList = _useMemo.remarkPluginsList;

  // 使用 useCallback 优化渲染子组件
  var renderLink = useCallback(function (props) {
    return /*#__PURE__*/_jsx(Link, _objectSpread(_objectSpread({
      citations: citations
    }, props), componentProps === null || componentProps === void 0 ? void 0 : componentProps.a));
  }, [citations, componentProps === null || componentProps === void 0 ? void 0 : componentProps.a]);
  var renderImage = useCallback(function (props) {
    return /*#__PURE__*/_jsx(Image, _objectSpread(_objectSpread({}, props), componentProps === null || componentProps === void 0 ? void 0 : componentProps.img));
  }, [isChatMode, componentProps === null || componentProps === void 0 ? void 0 : componentProps.img]);
  var renderCodeBlock = useCallback(function (props) {
    return fullFeaturedCodeBlock ? /*#__PURE__*/_jsx(CodeFullFeatured, _objectSpread(_objectSpread({
      enableMermaid: enableMermaid,
      highlight: componentProps === null || componentProps === void 0 ? void 0 : componentProps.highlight,
      mermaid: componentProps === null || componentProps === void 0 ? void 0 : componentProps.mermaid
    }, props), componentProps === null || componentProps === void 0 ? void 0 : componentProps.pre)) : /*#__PURE__*/_jsx(CodeLite, _objectSpread(_objectSpread({
      enableMermaid: enableMermaid,
      highlight: componentProps === null || componentProps === void 0 ? void 0 : componentProps.highlight,
      mermaid: componentProps === null || componentProps === void 0 ? void 0 : componentProps.mermaid
    }, props), componentProps === null || componentProps === void 0 ? void 0 : componentProps.pre));
  }, [enableMermaid, fullFeaturedCodeBlock, componentProps === null || componentProps === void 0 ? void 0 : componentProps.highlight, componentProps === null || componentProps === void 0 ? void 0 : componentProps.mermaid, componentProps === null || componentProps === void 0 ? void 0 : componentProps.pre]);
  var renderSection = useCallback(function (props) {
    return /*#__PURE__*/_jsx(Section, _objectSpread({
      showCitations: showFootnotes
    }, props));
  }, [showFootnotes]);
  var renderVideo = useCallback(function (props) {
    return /*#__PURE__*/_jsx(Video, _objectSpread(_objectSpread({}, props), componentProps === null || componentProps === void 0 ? void 0 : componentProps.video));
  }, [componentProps === null || componentProps === void 0 ? void 0 : componentProps.video]);

  // 创建组件映射
  var memoComponents = useMemo(function () {
    return _objectSpread({
      a: renderLink,
      img: enableImageGallery ? renderImage : undefined,
      pre: renderCodeBlock,
      section: renderSection,
      video: renderVideo
    }, components);
  }, [renderLink, renderImage, renderCodeBlock, renderSection, renderVideo, enableImageGallery, components]);

  // 渲染默认内容
  var defaultDOM = useMemo(function () {
    return /*#__PURE__*/_jsx(PreviewGroup, {
      enable: enableImageGallery,
      children: /*#__PURE__*/_jsx(ReactMarkdown, _objectSpread(_objectSpread({}, reactMarkdownProps), {}, {
        components: memoComponents,
        rehypePlugins: rehypePluginsList,
        remarkPlugins: remarkPluginsList,
        children: escapedContent
      }))
    });
  }, [escapedContent, memoComponents, rehypePluginsList, remarkPluginsList, enableImageGallery]);

  // 应用自定义渲染
  var markdownContent = customRender ? customRender(defaultDOM, {
    text: escapedContent || ''
  }) : defaultDOM;
  return /*#__PURE__*/_jsx(Typography, _objectSpread(_objectSpread({
    className: cx(variants({
      enableLatex: enableLatex,
      variant: variant
    }), className),
    "data-code-type": "markdown",
    fontSize: fontSize,
    headerMultiple: headerMultiple,
    lineHeight: lineHeight,
    marginMultiple: marginMultiple,
    onDoubleClick: onDoubleClick,
    ref: ref,
    style: style
  }, rest), {}, {
    children: markdownContent
  }));
});
Markdown.displayName = 'Markdown';
export default Markdown;