From e71e58561cfdf5cd016105ebfaab69142302a218 Mon Sep 17 00:00:00 2001
From: sunsonliu <sunsonliu@tencent.com>
Date: Mon, 18 Nov 2024 20:10:12 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8Dpreview=20hover?=
 =?UTF-8?q?=E6=97=B6=E6=8A=A5=E9=94=99=E7=9A=84=E9=97=AE=E9=A2=98=20(#980)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/toolbars/PreviewerBubble.js  | 3 +++
 src/toolbars/Toc.js              | 3 +++
 src/utils/tableContentHandler.js | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/src/toolbars/PreviewerBubble.js b/src/toolbars/PreviewerBubble.js
index 75242380e..93da69b82 100644
--- a/src/toolbars/PreviewerBubble.js
+++ b/src/toolbars/PreviewerBubble.js
@@ -347,6 +347,9 @@ export default class PreviewerBubble {
   }
 
   $getClosestNode(node, targetNodeName) {
+    if (!node || !node.tagName) {
+      return false;
+    }
     if (node.tagName === targetNodeName) {
       return node;
     }
diff --git a/src/toolbars/Toc.js b/src/toolbars/Toc.js
index f6237bfcb..c4d86c838 100644
--- a/src/toolbars/Toc.js
+++ b/src/toolbars/Toc.js
@@ -175,6 +175,9 @@ export default class Toc {
   }
 
   $getClosestNode(node, targetNodeName) {
+    if (!node || !node.tagName) {
+      return false;
+    }
     if (node.tagName === targetNodeName) {
       return node;
     }
diff --git a/src/utils/tableContentHandler.js b/src/utils/tableContentHandler.js
index d001618d7..232d846c9 100644
--- a/src/utils/tableContentHandler.js
+++ b/src/utils/tableContentHandler.js
@@ -370,6 +370,9 @@ export default class TableHandler {
   }
 
   $getClosestNode(node, targetNodeName) {
+    if (!node || !node.tagName) {
+      return false;
+    }
     if (node.tagName === targetNodeName) {
       return node;
     }