From f17a792b15d3ecf49223d6a8cb1282721db886c2 Mon Sep 17 00:00:00 2001
From: Daniel <845765@qq.com>
Date: Sun, 13 Jul 2025 17:04:21 +0800
Subject: [PATCH] :art: The bound heading block in the database card view
 displays the sub-blocks in the preview area
 https://github.com/siyuan-note/siyuan/issues/15288

---
 kernel/sql/av_gallery.go | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/kernel/sql/av_gallery.go b/kernel/sql/av_gallery.go
index 4d61ddbe8..d4e937b81 100644
--- a/kernel/sql/av_gallery.go
+++ b/kernel/sql/av_gallery.go
@@ -229,11 +229,23 @@ func renderCoverContentBlock(node *ast.Node, luteEngine *lute.Lute) string {
 	if isDoc {
 		node = node.FirstChild
 	}
+	heading := node
+	isHeading := ast.NodeHeading == node.Type
+	headingLevel := node.HeadingLevel
+	if isHeading {
+		node = node.Next
+	}
 
 	buf := bytes.Buffer{}
 	for c := node; nil != c; c = c.Next {
+		if isHeading && ast.NodeHeading == c.Type && c.HeadingLevel <= headingLevel {
+			if 1 > buf.Len() {
+				buf.WriteString(renderBlockDOMByNode(heading, luteEngine))
+			}
+			break
+		}
 		buf.WriteString(renderBlockDOMByNode(c, luteEngine))
-		if !isDoc || 1024*4 < buf.Len() {
+		if (!isDoc && !isHeading) || 1024*4 < buf.Len() {
 			break
 		}
 	}