refactor: 优化代码结构和模块导入

Author: RSS1102

IMPORT_GUIDE.md

@@ -77,8 +77,6 @@ export default class CherryStream extends CherryStatic {
     this.options.isPreviewOnly = true;
     this.options.editor.defaultModel = 'previewOnly';
     this.options.toolbars.showToolbar = false;
-    // Stream 版本禁用 PreviewerBubble，避免引入 codemirror
-    this.options.previewer.enablePreviewerBubble = false;
 
     this.locales = locales;
     if (this.options.locales) {

packages/cherry-markdown/src/CherryStream.js

@@ -0,0 +1,8 @@
+import createDOMPurify from 'dompurify';
+import { JSDOM } from 'jsdom';
+
+// 为 Node.js 环境创建虚拟 window 对象
+// dompurify 需要 window 对象才能在 Node.js 环境中工作
+const { window } = new JSDOM('');
+
+export const sanitizer = createDOMPurify(window);

packages/cherry-markdown/src/Sanitizer.node.js

@@ -14,10 +14,11 @@
  * limitations under the License.
  */
 import ParagraphBase from '@/core/ParagraphBase';
-// Import Prism first to ensure it's initialized before importing language components
+// 先导入 Prism 核心（必须在注册语言之前导入）
 import Prism from 'prismjs';
-// Import Prism language components AFTER importing Prism
-// 这些模块会自动注册语言到 Prism.languages
+// 导入 Prism 语言组件
+// 注意：这些模块有副作用 - 它们会将语言注册到 Prism.languages 中
+// 必须单独导入，因为 Prism 核心包不包含任何语言定义
 import 'prismjs/components/prism-core';
 import 'prismjs/components/prism-clike';
 import 'prismjs/components/prism-markup';
@@ -280,21 +281,8 @@ export default class CodeBlock extends ParagraphBase {
     } else {
       // 默认使用prism渲染代码块
       if (!lang || !Prism.languages[lang]) lang = 'javascript'; // 如果没有写语言，默认用js样式渲染
-
-      // 确保语言组件已加载
-      if (!Prism.languages[lang]) {
-        console.warn(`Prism language "${lang}" is not available. Available languages:`, Object.keys(Prism.languages));
-        // 尝试使用 javascript 作为备用
-        lang = 'javascript';
-      }
-
-      // 再次检查，如果 javascript 也不存在，则使用纯文本
-      if (!Prism.languages[lang]) {
-        cacheCode = cacheCode;
-      } else {
-        cacheCode = Prism.highlight(cacheCode, Prism.languages[lang], lang);
-        cacheCode = this.renderLineNumber(cacheCode);
-      }
+      cacheCode = Prism.highlight(cacheCode, Prism.languages[lang], lang);
+      cacheCode = this.renderLineNumber(cacheCode);
     }
     const needUnExpand = this.expandCode && $code.match(/\n/g)?.length > 10; // 是否需要收起代码块
     const codeHtml = `<pre class="language-${lang}">${this.wrapCode(cacheCode, lang)}</pre>`;

packages/cherry-markdown/src/core/hooks/CodeBlock.js

@@ -22,13 +22,11 @@
 import escapeRegExp from 'lodash/escapeRegExp';
 import SyntaxBase from '@/core/SyntaxBase';
 import { allSuggestList, suggesterKeywords } from '@/core/hooks/SuggestList';
+import { Pass } from 'codemirror/src/util/misc';
 import { isLookbehindSupported } from '@/utils/regexp';
 import { replaceLookbehind } from '@/utils/lookbehind-replace';
 import { isBrowser } from '@/utils/env';
 
-// 导入 CodeMirror Pass（仅在完整版本中使用）
-import { Pass } from 'codemirror/src/util/misc';
-
 /**
  * @typedef {import('codemirror')} CodeMirror
  */