Merge pull request #6025 from weseek/imprv/render-mathjax-in-comment-preview

imprv: Render MathJax in Preview tab of comment

packages/app/src/components/PageComment/CommentEditor.jsx

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { useCallback } from 'react';
 
 import { UserPicture } from '@growi/ui';
 import PropTypes from 'prop-types';
@@ -224,7 +224,6 @@ class CommentEditor extends React.Component {
   getCommentHtml() {
     return (
       <CommentPreview
-        inputRef={(el) => { this.previewElement = el }}
         html={this.state.html}
       />
     );
@@ -281,7 +280,7 @@ class CommentEditor extends React.Component {
   }
 
   renderReady() {
-    const { appContainer, commentContainer, isMobile } = this.props;
+    const { isMobile } = this.props;
     const { activeTab } = this.state;
 
     const commentPreview = this.state.isMarkdown ? this.getCommentHtml() : null;
@@ -446,9 +445,9 @@ const CommentEditorWrapper = (props) => {
   const { data: currentPagePath } = useCurrentPagePath();
   const { data: slackChannelsData } = useSWRxSlackChannels(currentPagePath);
 
-  const onSlackEnabledFlagChange = (isSlackEnabled) => {
+  const onSlackEnabledFlagChange = useCallback((isSlackEnabled) => {
     mutateIsSlackEnabled(isSlackEnabled, false);
-  };
+  }, [mutateIsSlackEnabled]);
 
   return (
     <CommentEditorHOCWrapper

packages/app/src/components/PageComment/CommentPreview.jsx

@@ -1,4 +1,5 @@
 import React from 'react';
+
 import PropTypes from 'prop-types';
 
 import RevisionBody from '../Page/RevisionBody';
@@ -6,29 +7,23 @@ import RevisionBody from '../Page/RevisionBody';
 /**
  * Wrapper component for Page/RevisionBody
  */
-export default class CommentPreview extends React.Component {
-
-  render() {
-    return (
-      <div
-        className="page-comment-preview-body"
-        ref={(elm) => {
-          this.previewElement = elm;
-          this.props.inputRef(elm);
-        }}
-      >
+const CommentPreview = (props) => {
 
-        <RevisionBody
-          {...this.props}
-          additionalClassName="comment"
-        />
-      </div>
-    );
-  }
+  return (
+    <div className="page-comment-preview-body">
+      <RevisionBody
+        html={props.html}
+        additionalClassName="comment"
+        isMathJaxEnabled
+        renderMathJaxInRealtime
+      />
+    </div>
+  );
 
-}
+};
 
 CommentPreview.propTypes = {
   html: PropTypes.string,
-  inputRef: PropTypes.func.isRequired, // for getting div element
 };
+
+export default CommentPreview;