From 5c95e9870a372116a65c9ac85790d28fe7b2acc4 Mon Sep 17 00:00:00 2001
From: Daniel <845765@qq.com>
Date: Mon, 9 Jun 2025 22:10:05 +0800
Subject: [PATCH] :art: Database gallery view
 https://github.com/siyuan-note/siyuan/issues/10414

---
 kernel/av/layout_gallery.go |  3 ++-
 kernel/sql/av_gallery.go    | 32 ++++++++++++++++++++++++++++++--
 2 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/kernel/av/layout_gallery.go b/kernel/av/layout_gallery.go
index cd6a48e40..762441614 100644
--- a/kernel/av/layout_gallery.go
+++ b/kernel/av/layout_gallery.go
@@ -72,7 +72,8 @@ type GalleryCard struct {
 	ID     string               `json:"id"`     // 卡片 ID
 	Values []*GalleryFieldValue `json:"values"` // 卡片字段值
 
-	CoverURL string `json:"coverURL"` // 卡片封面超链接
+	CoverURL     string `json:"coverURL"`     // 卡片封面超链接
+	CoverContent string `json:"coverContent"` // 卡片封面文本内容
 }
 
 // GalleryField 描述了画廊实例卡片字段的结构。
diff --git a/kernel/sql/av_gallery.go b/kernel/sql/av_gallery.go
index 35136d797..8393668ff 100644
--- a/kernel/sql/av_gallery.go
+++ b/kernel/sql/av_gallery.go
@@ -6,7 +6,10 @@ import (
 	"strings"
 	"time"
 
+	"github.com/88250/lute"
 	"github.com/88250/lute/ast"
+	"github.com/88250/lute/parse"
+	"github.com/88250/lute/render"
 	"github.com/siyuan-note/siyuan/kernel/av"
 	"github.com/siyuan-note/siyuan/kernel/treenode"
 	"github.com/siyuan-note/siyuan/kernel/util"
@@ -153,7 +156,7 @@ func RenderAttributeViewGallery(attrView *av.AttributeView, view *av.View, query
 			galleryCard.Values = append(galleryCard.Values, fieldValue)
 		}
 
-		fillGalleryCardCover(attrView, view, cardValues, galleryCard, cardID)
+		fillGalleryCardCover(attrView, view, cardValues, galleryCard, cardID, luteEngine)
 		ret.Cards = append(ret.Cards, &galleryCard)
 	}
 
@@ -391,7 +394,7 @@ func RenderAttributeViewGallery(attrView *av.AttributeView, view *av.View, query
 	return
 }
 
-func fillGalleryCardCover(attrView *av.AttributeView, view *av.View, cardValues []*av.KeyValues, galleryCard av.GalleryCard, cardID string) {
+func fillGalleryCardCover(attrView *av.AttributeView, view *av.View, cardValues []*av.KeyValues, galleryCard av.GalleryCard, cardID string, luteEngine *lute.Lute) {
 	switch view.Gallery.CoverFrom {
 	case av.CoverFromNone:
 	case av.CoverFromContentImage:
@@ -429,6 +432,16 @@ func fillGalleryCardCover(attrView *av.AttributeView, view *av.View, cardValues
 				galleryCard.CoverURL = dest.TokensStr()
 				return ast.WalkStop
 			})
+
+			if "" == galleryCard.CoverURL {
+				if ast.NodeDocument == node.Type {
+					galleryCard.CoverContent = node.IALAttr("title")
+					return
+				}
+
+				galleryCard.CoverContent = renderBlockDOMByNode(node, luteEngine)
+				return
+			}
 		}
 	case av.CoverFromAssetField:
 		if "" == view.Gallery.CoverFromAssetKeyID {
@@ -441,5 +454,20 @@ func fillGalleryCardCover(attrView *av.AttributeView, view *av.View, cardValues
 		}
 
 		galleryCard.CoverURL = assetValue.MAsset[0].Content
+		return
 	}
 }
+
+func renderBlockDOMByNode(node *ast.Node, luteEngine *lute.Lute) string {
+	tree := &parse.Tree{Root: &ast.Node{Type: ast.NodeDocument}, Context: &parse.Context{ParseOption: luteEngine.ParseOptions}}
+	blockRenderer := render.NewProtyleRenderer(tree, luteEngine.RenderOptions)
+	ast.Walk(node, func(node *ast.Node, entering bool) ast.WalkStatus {
+		rendererFunc := blockRenderer.RendererFuncs[node.Type]
+		return rendererFunc(node, entering)
+	})
+	h := strings.TrimSpace(blockRenderer.Writer.String())
+	if strings.HasPrefix(h, "<li") {
+		h = "<ul>" + h + "</ul>"
+	}
+	return h
+}